Sohar-Crisponi syndrome is a very rare genetic disease that mainly affects babies and children. It belongs to a family of problems called cold-induced sweating syndromes, which means the body sweats too much when it is cold, and often sweats very little when it is hot. In the first months of life, babies usually have strong muscle contractions in the face and body, high fevers, trouble feeding, and trouble breathing. Later in childhood they often develop heavy sweating when the air is cool, bent fingers and joints, and a curved spine. The main cause is a change (mutation) in genes called CRLF1 or CLCF1. These genes help control a nerve signalling pathway called the CNTF-receptor pathway, which is important for the growth and work of the autonomic nervous system (the part of the nervous system that controls sweating, temperature, heart rate, and many automatic body functions). The disease is passed down in an autosomal recessive way, which means a child gets one faulty copy of the gene from each parent.
Sohar-Crisponi syndrome is another name for cold-induced sweating syndrome type 1, a very rare genetic disease where a baby is born with severe muscle contractions, feeding difficulty, breathing problems, and later, abnormal sweating when the environment is cool. Researchers now believe Crisponi syndrome in infancy and cold-induced sweating syndrome in childhood are the same condition at different ages.
This syndrome is usually caused by changes (mutations) in the CRLF1 or CLCF1 genes. These genes help make a protein pair (CRLF1–CLCF1) that works with a receptor called CNTFR to support the autonomic nervous system, which controls body temperature, heart rate, and sweating. When these genes do not work properly, babies can have facial muscle spasms, stiff joints, high fevers, and later cold-triggered heavy sweating and spine curvature problems.
Because Sohar-Crisponi syndrome is so rare, it is usually cared for in specialist centers. Doctors focus on keeping the baby safe in the early months by managing breathing, feeding, fevers, and seizures or spasm-like attacks. Many children who survive the dangerous early period can live into childhood and adulthood, but they may still have cold-induced sweating, joint problems, and spine problems that need long-term follow-up.
Other names
Sohar-Crisponi syndrome is known by several other names. Different books and databases may use different terms, which can be confusing. These names describe the same or very closely related conditions in the CRLF1 / CLCF1 gene family.
Other names
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Crisponi syndrome
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Sohar-Crisponi syndrome
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Cold-induced sweating syndrome 1 (CISS1)
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Cold-induced sweating syndrome type 1
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CNTF receptor-related disorder
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Muscle contractions, tetanoform, with characteristic face, camptodactyly, hyperthermia, and sudden death (a descriptive long name used in some medical catalogs)
Types
Doctors usually speak about CISS1 and CISS2, and about two “faces” of the same disorder (neonatal Crisponi picture and later cold-induced sweating picture):
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CISS1 / Crisponi syndrome type 1 – usually due to CRLF1 gene mutations. Babies show severe muscle contractions, high fevers, and typical facial and hand changes. Later they develop cold-induced sweating.
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CISS2 / Crisponi-like syndrome type 2 – usually due to CLCF1 gene mutations. The picture is very similar, with feeding problems, spasms, fevers, and later cold-induced sweating, but the exact pattern and severity can be a bit different.
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“Sohar-Crisponi syndrome” as an umbrella name – some experts suggest using this name for both CS and CISS1 because they share the same gene pathway and many clinical features.
Causes
In reality there are only two main direct causes: mutations in CRLF1 or CLCF1 genes, inherited in an autosomal recessive pattern. The 20 points below break down these causes into simple, related ideas to help understanding.
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CRLF1 gene mutations
Most patients have harmful changes in the CRLF1 gene. This gene makes a protein that joins with another protein to help nerve cells and other cells talk to each other. When the gene is faulty, the protein does not work well and the signalling fails. -
CLCF1 gene mutations
A smaller number of patients have changes in CLCF1, another gene in the same pathway. CLCF1 protein normally partners with CRLF1. If CLCF1 is faulty, the whole pair does not work correctly. -
Disruption of the CNTF-receptor pathway
CRLF1 and CLCF1 proteins work together to signal through the ciliary neurotrophic factor receptor (CNTFR). When either partner is abnormal, messages in this pathway are disturbed. This pathway is important for the autonomic nervous system, which helps control sweating and body temperature. -
Abnormal development of autonomic nerves
Because the signalling pathway is damaged, the nerves that control automatic body functions (heart rate, sweating, blood pressure, digestion) may not develop normally. This leads to a body that cannot control temperature and sweating in a normal way. -
Faulty control of sweating glands
In cold-induced sweating syndrome, the nerves to the sweat glands fire in the wrong situations. Children may sweat heavily when they are cold, but almost not at all when they are hot. This “reversed” pattern comes from wrong signalling in the autonomic nervous system. -
Autosomal recessive inheritance
The disease appears when a child inherits one faulty gene from each parent. Parents are usually healthy carriers with one normal copy and one changed copy, so they do not show symptoms themselves. -
Consanguinity (parents related by blood)
Many reported families are from small, isolated populations or from parents who are related (for example cousins). When parents share ancestors, they are more likely to carry the same rare harmful gene change. -
Founder mutations in some populations
Specific recurring mutations have been found in certain regions, such as Sardinia and parts of the Middle East. This means a mutation from a distant ancestor spread through a local population and raises the chance of disease in that area. -
Abnormal muscle control in the brainstem and spinal cord
The same pathway also affects nerve circuits that control muscle tone. When it is abnormal, babies can have sudden strong muscle contractions that look like neonatal tetanus. -
Disordered temperature regulation
The hypothalamus and autonomic nerves help keep body temperature stable. In Sohar-Crisponi syndrome, wrong signals from the CNTF pathway can make the body overreact, causing dangerous high fevers even without clear infection. -
Developmental changes in bone and connective tissue
The same growth signals that affect nerves also influence bones, joints, and connective tissue. This may contribute to camptodactyly (bent fingers), limited elbow extension, and spine deformity. -
Abnormal craniofacial development
Faulty signalling can disturb development of the face and jaws, leading to round face, small jaw (micrognathia), high-arched palate, and other facial differences. These changes are part of the cause of feeding and speech problems. -
Impaired control of swallowing muscles
The autonomic and motor nerves that coordinate sucking, swallowing, and breathing do not work smoothly. This causes poor feeding and risk of aspiration in newborns. -
Abnormal salivary gland control
Many babies have very heavy drooling. This is likely due to abnormal nerve control of the salivary glands and mouth muscles. -
Impaired pain and temperature sensing pathways
Studies in cold-induced sweating syndrome show changes in warmth and pain-related brain responses. This suggests the cause includes faulty sensory nerve signalling, not only sweat-gland control. -
Protein mis-folding and secretion problems
Research has shown that many CRLF1 mutations cause the protein to fold wrongly or be secreted slowly, so less functional protein reaches the cell surface. This leads to weaker signalling. -
Gene-dose effect (two bad copies vs one)
Carriers with one faulty copy usually have enough working protein to stay healthy. Children with two faulty copies have very low or absent function, leading to full disease. This “dose effect” is part of the cause of the severe phenotype. -
Overlap with other CNTF-pathway diseases
Similar mutations in the same pathway can cause related conditions such as Stüve-Wiedemann syndrome, which share many features like bone changes and autonomic problems. This shows that disruption of this pathway is the core biological cause. -
Random (de novo) mutations in rare cases
While most families show inherited mutations, in theory new mutations in CRLF1 or CLCF1 can appear in a child even if there is no family history. This has been suggested in isolated case reports. -
Environmental stress revealing the genetic problem
Cold air, infections, or emotional stress do not cause the disease, but they can trigger sweating attacks, fevers, or spasms because the underlying nerve system is fragile.
Symptoms
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Neonatal facial muscle contractions
Newborns often have strong, sudden muscle contractions of the face, sometimes with the mouth held tightly shut (trismus). These episodes can be triggered by touch or crying and may look like tetanus-like spasms. -
Body spasms and abnormal postures
Some babies arch their backs (opisthotonus) or hold their neck and trunk stiffly during attacks. These postures come from abnormal signalling to the muscles and can be frightening to caregivers. -
High fevers and hyperthermia
Repeated episodes of very high body temperature are common in the first months of life, sometimes without clear infection. These fevers can be severe and can even lead to sudden death if not controlled quickly. -
Feeding difficulties and poor sucking
Because the mouth muscles, jaw, and swallowing coordination are affected, babies may suck weakly, choke on feeds, or not gain weight well. Many need tube feeding in the early months. -
Breathing problems in newborns
Muscle spasms, jaw tightness, and poor coordination of breathing and swallowing can cause breathing distress. Some babies need breathing support in intensive care. -
Abundant drooling and salivation
Many infants have constant drooling. Saliva may pool in the mouth because of poor swallowing and abnormal jaw position, adding to the risk of choking. -
Characteristic facial appearance
Typical facial features include a round face with chubby cheeks, small jaw (micrognathia), depressed nasal bridge, low-set ears, and sometimes a nasal-sounding voice. -
High-arched palate and dental problems
A high, arched roof of the mouth and crowded teeth are often described. These changes make feeding and later speech more difficult and may lead to dental decay. -
Camptodactyly and joint contractures
Fingers may be permanently bent (camptodactyly), and elbows may not fully straighten. These joint contractures can limit movement and make daily tasks harder. -
Progressive kyphoscoliosis
As children grow, the spine may curve forwards and sideways (thoracolumbar kyphoscoliosis). This can worsen with age and sometimes needs bracing or surgery. -
Cold-induced sweating of face, arms and chest
In later childhood, children sweat heavily on the face, arms and chest when the air is cool (often below about 18–22°C) or when they are nervous or eating sweets. They usually sweat very little in hot weather and may feel overheated. -
Reduced sweating in heat and heat intolerance
Because sweat does not increase properly in hot weather, children can feel very uncomfortable in warm rooms, may flush easily, and are at risk of overheating. -
Speech and voice problems
Some children have a distinctive nasal voice and articulation difficulties. These may be linked to the high-arched palate, jaw problems, and abnormal neck muscle tone. -
Growth and nutrition problems
Because feeding is so difficult early in life, many babies grow slowly and may be smaller or lighter than average. With careful feeding support, growth can improve over time. -
Emotional and social impact
Older children may feel embarrassed by heavy sweating in cool environments, by visible spine or hand differences, or by speech problems. These physical symptoms can affect self-confidence and social life, so emotional support is important.
Diagnostic tests for Sohar-Crisponi syndrome
Doctors use a mix of history, examination, and tests to diagnose Sohar-Crisponi syndrome and to rule out other conditions that look similar. Genetic testing is the key test, but many other tests help understand each child’s problems and guide treatment.
Physical examination tests
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Full physical examination
The doctor carefully checks the baby’s general condition, body temperature, breathing, feeding pattern, and growth. They look for signs like high fever, poor weight gain, and overall distress, which raise suspicion for a serious genetic disorder. -
Dysmorphic and facial feature examination
The doctor studies the shape of the face, jaw, ears, nose, and palate, looking for the typical round face, small jaw, and high-arched palate seen in this syndrome. Recognizing this pattern helps point toward Sohar-Crisponi syndrome rather than other causes of muscle spasms. -
Musculoskeletal examination
Joints, fingers, and spine are examined for bent fingers (camptodactyly), limited elbow extension, and early spine curvature. Noting these features together with facial traits strengthens the clinical suspicion. -
Skin and sweating pattern examination
In older children, the doctor compares sweating in warm and cool environments, often by observation over time. The unusual pattern of heavy sweating in the cold and little sweating in heat is a strong clinical clue.
Manual (bedside) tests
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Feeding and sucking assessment
In newborns, specialists watch how the baby sucks, swallows, and breathes during feeding. Difficulty maintaining a rhythm, choking, or tiring quickly may suggest the sucking and swallowing control problems typical of this syndrome. -
Jaw opening and trismus check
The examiner gently tries to open the baby’s mouth, noting if the jaw is stiff or clenched, and whether touch triggers facial spasms. This simple test helps distinguish Sohar-Crisponi syndrome from other causes of neonatal stiffness. -
Range-of-motion testing of joints and spine
By carefully moving the fingers, elbows, and spine, the doctor measures how far they can bend or straighten. Limited movement suggests contractures and early spine deformity, which are part of the syndrome. -
Controlled cold-stimulation test (specialist setting)
In a safe setting, with close monitoring, some centers gently expose the child to mild cool air to observe changes in sweating. This is not a standard test everywhere, but when used, it can demonstrate the cold-induced sweating pattern.
Lab and pathological tests
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Complete blood count and basic biochemistry
A simple blood test checks red and white cells, platelets, salts, and kidney function. It helps detect infection, dehydration, or other problems that may accompany severe fevers and feeding issues, even though it does not confirm the syndrome by itself. -
Inflammatory markers and infection work-up
Tests such as C-reactive protein or blood cultures may be used when the baby has fever, to see if an infection is present. In Sohar-Crisponi syndrome, fevers may occur even without infection, so these tests help separate fever from infection versus fever from autonomic dysfunction. -
Genetic testing for CRLF1 mutations
A molecular test looks at the CRLF1 gene sequence to find disease-causing changes. Finding two harmful mutations in CRLF1 in a child with the typical clinical picture confirms the diagnosis of CISS1 / Crisponi syndrome. -
Genetic testing for CLCF1 mutations
If CRLF1 is normal, the CLCF1 gene is tested next. Mutations here support a diagnosis of CISS2, which has very similar clinical features and is part of the Sohar-Crisponi spectrum. -
Targeted gene panels or exome sequencing
Some hospitals use broader genetic panels for autonomic neuropathy or dysmorphic syndromes, or even whole-exome sequencing, to detect CRLF1 / CLCF1 variants and to rule out other rare genetic conditions with overlapping signs. -
Metabolic screening tests
Tests of blood and urine for metabolic diseases (such as certain amino-acid or organic-acid disorders) help exclude other serious conditions that can cause neonatal spasms, stiffness, or feeding problems. These results are usually normal in Sohar-Crisponi syndrome but are important for differential diagnosis.
Electrodiagnostic tests
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Nerve conduction studies (NCS)
These tests measure how fast and how strongly electrical signals travel along peripheral nerves. In cold-induced sweating syndromes, NCS may be normal or may show subtle changes, but they help rule out other peripheral nerve diseases. -
Electromyography (EMG)
EMG uses fine needles to record electrical activity in muscles. It can show whether muscle spasms are due to nerve or muscle problems and may help distinguish Sohar-Crisponi syndrome from primary muscle diseases. -
Autonomic function tests and sweat testing
Specialized tests can measure heart rate changes, blood pressure responses, and sweating in different conditions. Quantitative sweat testing documents the abnormal sweating pattern and supports the diagnosis of a cold-induced sweating syndrome. -
Evoked potentials and EEG studies
Warmth and pain-related evoked potential tests measure how the brain responds to certain stimuli. Studies in cold-induced sweating syndrome have shown altered warmth and nociceptive responses, supporting involvement of sensory pathways. EEG may also be used if seizures are suspected.
Imaging tests
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X-rays of spine and limbs
Simple X-rays can show curvature of the spine (kyphoscoliosis), hip or limb alignment problems, and the degree of joint contractures. These images help plan orthopedic treatment such as braces or surgery. -
MRI of brain and spine
Magnetic resonance imaging gives detailed pictures of the brain and spinal cord. Although many patients have normal MRI, the scan helps exclude other structural causes of spasms or stiffness and can document spine changes over time.
Non-pharmacological Treatments
Because this disease affects feeding, breathing, temperature control, and movement, non-drug care is the foundation of treatment. Evidence comes mainly from expert reviews, case series, and nutrition/feeding studies in Crisponi / CISS1.
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Temperature-controlled environment
Keeping the baby in a warm but not overheated room helps reduce dangerous fevers and later cold-triggered sweating. Parents and staff carefully avoid sudden changes in temperature and drafts. The purpose is to protect the autonomic nervous system, which cannot regulate heat and sweat normally, and to prevent episodes of hyperthermia in infancy and cold-induced sweating in childhood. -
Careful fever management with cooling measures
During fever spikes, physical cooling methods (tepid sponging, light clothing, good hydration) are used together with medicines. The purpose is to avoid seizures, heart strain, and sudden death reported in some infants with Crisponi syndrome. This works by reducing body heat load while the underlying infection or trigger is treated. -
Specialized feeding support and positioning
Many infants cannot suck or swallow safely. A speech-and-swallow therapist and dietitian choose safe positions, thickened feeds, or tube feeding (nasogastric or gastrostomy). The purpose is to protect from choking and aspiration pneumonia while giving enough calories for growth. The mechanism is simple: gravity and proper head-neck position help food go to the stomach instead of the lungs. -
Enteral tube feeding (NG or PEG/G-tube)
For babies who cannot take enough food by mouth, long-term tube feeding directly into the stomach is often needed. It allows precise control of volume, calories, and nutrients and reduces feeding stress for the family. The mechanism is purely mechanical: nutrition bypasses unsafe swallowing and goes straight into the gut. -
Individualized nutrition planning
Dietitians design high-calorie, high-protein feeds with enough micronutrients (iron, zinc, vitamins, essential fatty acids) to support muscle, bone, and immune health. The purpose is to prevent malnutrition and growth failure, which are common in children with severe feeding problems. Balanced macronutrient and micronutrient intake supports tissue repair and immune function. -
Respiratory physiotherapy and airway clearance
Because of weak facial and chest muscles and high salivation, mucus can build up in airways. Chest physiotherapy, suctioning, and positioning help remove secretions and keep breathing pathways open. This reduces the risk of pneumonia and chronic lung damage by improving ventilation and mucus clearance. -
Physiotherapy for contractures and posture
Joint stiffness (camptodactyly, flexed elbows) and later spine curvature (scoliosis, kyphosis) are key features. Regular stretching, splinting, and strengthening exercises help maintain joint range and improve posture. The mechanism is mechanical stretching of muscles and tendons to prevent fixed deformities and preserve mobility. -
Occupational therapy for daily function
Occupational therapists help the child learn safe ways to sit, eat, dress, and play, sometimes with adaptive tools. The purpose is to support independence and reduce caregiver burden. Using task practice and adapted equipment helps the nervous system learn efficient movement patterns despite muscle and autonomic problems. -
Management of cold-induced sweating with clothing and climate control
In older children, episodes of heavy sweating when exposed to cool air can be very disturbing. Wearing breathable layers, avoiding prolonged cold exposure, and using climate control reduce attack frequency. This works by minimizing triggers that activate the overactive sympathetic response seen in this syndrome. -
Sleep hygiene and bedtime routines
Many children have disrupted sleep due to muscle spasms, sweating, and discomfort. A fixed routine, dark quiet room, and comfortable temperature can improve sleep quality. Better sleep can reduce daytime irritability, help growth hormone secretion, and support learning and behavior. -
Psychological support for family
The condition is stressful for parents because of high early mortality risk and chronic care needs. Counseling, support groups, and clear information help families cope and make decisions. This reduces anxiety and burnout and can improve adherence to complex home care plans. -
Regular dental care with modified techniques
Tube-fed children and those with muscle spasms can have a higher risk of gum disease and aspiration during dental care. Dentists adapt positions, suction, and timing to keep procedures safe. The goal is to prevent oral infection and aspiration pneumonia. -
Anesthesia planning and peri-operative monitoring
Children with Sohar-Crisponi syndrome may react strongly to anesthesia because of muscle and autonomic issues. Anesthesiologists plan carefully, choose agents, and monitor closely to avoid breathing and temperature crises. This reduces peri-operative risk by anticipating abnormal responses. -
Regular orthopedic surveillance (spine and joints)
Early and repeated checks by orthopedic specialists help detect scoliosis, kyphosis, and joint deformities before they become severe. The purpose is to time braces or surgery correctly. Monitoring changes over time makes it possible to intervene while bone is still growing and more flexible. -
Education of local healthcare providers and schools
Because this is an ultra-rare condition, local doctors, nurses, and teachers often do not know it. Sharing written care plans and emergency instructions helps everyone respond quickly to fever spikes, sweating attacks, and swallowing issues. This mechanism is simple: better knowledge leads to safer and faster care. -
Genetic counseling for parents and family
Specialists explain autosomal recessive inheritance, carrier status, and future pregnancy risks. The purpose is to allow informed family planning and testing of siblings if needed. Understanding the 25% recurrence risk per pregnancy helps families make decisions and prepare. -
Early stimulation and developmental therapy
Physio-, occupational, and speech therapists provide early-intervention programs to support motor, communication, and cognitive skills. The idea is to use brain plasticity: practicing skills early can partially compensate for motor and autonomic difficulties and improve long-term outcomes. -
Saliva and secretion management strategies
Positioning, suction devices, and sometimes thickening of feeds help manage drooling and foamy saliva, which are very common in infancy. This reduces the risk of choking and improves comfort and skin health around the mouth and chin. -
Audiovisual and physical startle-reduction techniques
Because infants startle easily, caregivers can use gentle touch, soft voices, and dim lights to reduce sudden stimuli. The purpose is to limit painful muscle spasms and opisthotonus-like posturing triggered by noise or touch. It works by decreasing abrupt sensory input to a sensitive nervous system. -
Long-term multidisciplinary follow-up in specialized centers
Research and experience show that children do best when cared for in centers familiar with Sohar-Crisponi / CISS1, working together across genetics, neurology, nutrition, orthopedics, and psychology. A coordinated team can update care as the child moves from the dangerous neonatal period into school age and adolescence.
Drug Treatments
There are no drugs specifically approved for Sohar-Crisponi syndrome. Medicines are used “off-label” to treat symptoms such as fever, muscle spasms, seizures, reflux, pain, and cold-induced sweating, based on general pediatric practice and case reports. Always follow your specialist’s instructions; never start or change these medicines yourself.
Below are examples of important drug groups with information from official labels on U.S. Food and Drug Administration (FDA) (accessdata.fda.gov). Doses are typical ranges for general indications, not personal prescriptions.
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Acetaminophen (paracetamol)
Acetaminophen is a common fever and pain reliever used in children. FDA labels describe doses around 10–15 mg/kg every 4–6 hours (max 75 mg/kg/day), adjusted by age and weight. The purpose in Sohar-Crisponi syndrome is to control high fevers and reduce discomfort. It works mainly in the brain to lower the “set point” of body temperature. Main risks are liver toxicity if overdosed and interaction with other acetaminophen-containing products. -
Ibuprofen
Ibuprofen is a non-steroidal anti-inflammatory drug (NSAID) approved for pain and fever in children, often at 5–10 mg/kg every 6–8 hours with a maximum daily limit from the label. In this syndrome, it can be used when acetaminophen alone does not control fever. It blocks COX enzymes to reduce prostaglandin production, lowering fever and inflammation. Side effects may include stomach irritation, kidney stress in dehydrated children, and rare allergic reactions. -
Diazepam (Valium, Diastat, Valtoco)
Diazepam is a benzodiazepine used for acute seizures, severe muscle spasms, and anxiety. In Sohar-Crisponi syndrome, it may be considered for painful tetanic muscle contractions or prolonged seizures during fever. Diazepam enhances GABA activity in the brain to calm nerve firing. Labels warn about sedation, breathing depression, dependence, and serious risk when combined with opioids. Rectal gel or nasal spray forms are sometimes used in children for seizure clusters, with strict limits on how often they can be given. -
Baclofen
Baclofen is a GABA-ergic muscle relaxant approved for spasticity due to conditions like multiple sclerosis. In a child with Sohar-Crisponi syndrome, a specialist may consider it to reduce ongoing painful muscle spasms and improve comfort or posture. It works on spinal cord receptors to dampen reflex muscle overactivity. Side effects include sleepiness, weakness, low blood pressure, and dangerous withdrawal if stopped suddenly, so doses are started low and increased very slowly under supervision. -
Clonidine (oral or extended-release)
Case reports suggest that clonidine, a central alpha-2 agonist, can reduce cold-induced sweating episodes and high noradrenaline levels in Crisponi / CISS patients. It is FDA-approved for hypertension and ADHD; in this syndrome it is used off-label to calm sympathetic overactivity. Clonidine reduces release of noradrenaline from nerve endings. Side effects include low blood pressure, slow heart rate, dryness of mouth, and strong rebound hypertension if stopped suddenly. -
Proton pump inhibitors (PPIs) such as omeprazole
Severe reflux and vomiting can occur because of poor swallowing and muscle control. PPIs, approved for pediatric reflux, reduce stomach acid by blocking proton pumps in acid-producing cells. This protects the esophagus, lowers pain, and may reduce aspiration of acidic content. Side effects include diarrhea, constipation, and, with long use, possible low magnesium or increased infection risk. -
Prokinetic agents (e.g., certain dopamine antagonists, used cautiously)
Some centers may use pro-motility medicines to help stomach emptying and reduce vomiting, based on general pediatric reflux practice. They work by increasing coordinated muscle contractions in the upper gut. However, many such drugs have important side-effect warnings (movement disorders, heart rhythm issues), so they are used very carefully or avoided, depending on local guidelines. -
Anticonvulsants (e.g., levetiracetam, valproate – if seizures are confirmed)
If a child with Sohar-Crisponi syndrome develops recurrent seizures, neurologists may start long-term anticonvulsant therapy. These drugs stabilize brain electrical activity through different mechanisms (sodium-channel modulation, GABA enhancement, synaptic vesicle effects). The goal is to prevent further seizures that could worsen brain injury. Each drug has its own FDA label, dosing rules, and side-effect profile, so selection is highly individualized. -
Bronchodilators and inhaled steroids (if chronic lung disease or asthma-like symptoms)
Recurrent aspiration and infections may lead to wheezing or chronic lung damage. In such cases, pediatric pulmonologists may use inhaled bronchodilators to relax airway muscles and inhaled steroids to reduce inflammation, following asthma guidelines. These medications work locally in the lungs and can improve breathing and exercise tolerance. Side effects include tremor, fast heart rate, or oral thrush with poor mouth rinsing. -
Anticholinergic agents (for drooling and secretions, used carefully)
Drugs with anticholinergic effects can sometimes be used to reduce excessive saliva and secretions that increase choking risk. They block muscarinic receptors in salivary glands, lowering saliva production. However, they can worsen constipation, cause urinary retention, and over-dry the mouth, so dose and indication must be carefully weighed. -
Analgesics and sedatives for procedures
Children with contractures and autonomic instability may need especially gentle pain and sedation plans for procedures and surgeries. Anesthetists may use combinations of opioids, benzodiazepines, and other agents at adjusted doses with close monitoring. These drugs act on pain and GABA receptors to reduce pain and anxiety but carry risks of breathing depression and low blood pressure, so intensive monitoring is essential. -
Experimental or individualized therapies in research settings
Because Sohar-Crisponi syndrome involves CRLF1/CLCF1-CNTFR signaling, some centers are exploring disease models and possible signaling-modifying strategies in the lab. At present, there is no approved disease-modifying drug, and any experimental drug use should occur only in clinical trials or highly specialized research programs.
Dietary Molecular Supplements
These supplements are not proven cures, but are often considered to support general health in children with chronic disease and feeding problems. They must be adapted to the child’s lab results and nutrition plan.
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High-energy polymeric formulas – provide concentrated calories and complete nutrients to support growth and weight gain when volume tolerance is low. They work by supplying balanced carbohydrate, fat, and protein in small volumes.
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Medium-chain triglyceride (MCT) oils – offer easily absorbed fats that do not require bile for digestion. They can help increase energy intake and may be useful in children with fat malabsorption or high energy needs.
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Omega-3 fatty acid supplements (DHA/EPA) – support brain and retinal development and may have mild anti-inflammatory effects. They integrate into cell membranes and modulate inflammatory pathways.
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Multivitamin–mineral supplements – ensure adequate intake of vitamins A, D, E, K, B-complex, and minerals like zinc and selenium when dietary intake is limited or selective. These act as enzyme cofactors and support immunity and tissue repair.
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Vitamin D and calcium – especially important if mobility is reduced and the child has limited sun exposure, to prevent rickets and osteoporosis. They support bone mineralization and muscle function.
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Iron supplementation (if deficiency is present) – corrects iron-deficiency anemia caused by poor intake or chronic illness. Iron is required for hemoglobin and many enzymes related to energy production.
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Zinc supplements – help with growth, immune function, and wound healing. Zinc acts as a cofactor for many enzymes and transcription factors and can support skin health in children with rashes or feeding tubes.
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Probiotics (selected strains) – may improve gut microbiota balance and reduce some forms of diarrhea or constipation, especially in tube-fed children, although high-quality data in Sohar-Crisponi are lacking. They work by competing with harmful bacteria and modulating immune responses in the gut.
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Protein-enriched formulas or modular protein powders – added when protein intake is low to support muscle mass, immune function, and healing. They provide amino acids needed for tissue building and enzyme production.
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Electrolyte solutions – used during illness or vomiting to maintain sodium, potassium, and fluid balance. They work by replacing salts and water in proportions similar to body fluids, reducing the risk of dehydration and heart rhythm problems.
Immune-Boosting / Regenerative / Stem-Cell-Related Drugs
At present there is no approved stem-cell or gene therapy specifically for Sohar-Crisponi syndrome. Research is focused on understanding CRLF1/CLCF1–CNTFR signaling and on induced pluripotent stem cell (iPSC) models, not on routine clinical regenerative drugs.
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Standard childhood vaccines – Routine immunizations protect against infections that could be life-threatening in a medically fragile child. Vaccines “train” the immune system to recognize pathogens without causing full disease. Keeping vaccines up to date is one of the safest and most powerful “immune boosters.”
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Nutritional “immune support” (adequate protein, vitamins, zinc) – Good nutrition is the basic regenerative therapy. Adequate protein and micronutrients help white blood cell function, antibody production, and wound healing.
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Physical activity within safe limits – Gentle physiotherapy and movement, when possible, support circulation, lung function, and muscle health, indirectly supporting immunity.
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iPSC-based research models – Scientists have generated induced pluripotent stem cell lines from Crisponi / CISS patients to study disease mechanisms and test future therapies in the lab. This is a research tool, not a clinical treatment, but may one day guide regenerative strategies.
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Careful avoidance of unnecessary immunosuppressive drugs – Because many problems are autonomic and structural, immunosuppressants are usually not needed. Avoiding them unless clearly indicated helps preserve natural immune defenses.
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Future gene- or pathway-targeted therapies (theoretical) – As more is learned about CRLF1/CLCF1–CNTFR signaling, targeted biological therapies might be developed, but they remain experimental. Families should be cautious about unproven “stem cell” offers outside regulated trials.
Surgeries and Procedures
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Gastrostomy tube (PEG or button) placement – For long-term severe feeding problems, surgeons can place a tube directly into the stomach through the abdominal wall. This provides safe, reliable access for nutrition and medicines and lowers aspiration risk.
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Tracheostomy (in selected severe airway cases) – Rarely, if upper airway obstruction, laryngospasm, or recurrent pneumonia make breathing unsafe, a tracheostomy may be considered. It creates a direct airway through the neck to improve ventilation and suctioning.
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Spinal surgery for severe scoliosis/kyphosis – In adolescents with strong spine curvature that impairs breathing or function, orthopedic surgeons may perform spinal fusion or other corrective procedures. The aim is to stabilize the spine, protect lung capacity, and reduce pain.
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Orthopedic procedures for joint deformities – In some children, surgery to release tight tendons or correct foot deformities may improve standing, walking, or brace fitting. These procedures change muscle-tendon tension and bone alignment to improve function.
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Dental surgeries with special airway precautions – Children may need dental extractions or restorations under general anesthesia with careful airway and aspiration planning. The goal is to prevent chronic oral infection while minimizing respiratory risk.
Preventions and Risk-Reduction Tips
Because this is a genetic disease, you cannot fully prevent it, but you can reduce complications:
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Genetic counseling before future pregnancies.
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Early diagnosis in newborns from at-risk families, so feeding and fever management start quickly.
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Strict fever management and early treatment of infections.
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Keeping all routine vaccinations up to date.
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Avoiding environmental cold triggers that provoke sweating attacks.
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Regular nutrition and growth monitoring to catch malnutrition early.
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Routine spine and joint checks for early scoliosis detection.
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Good mouth care and regular dentist visits to prevent aspiration from oral disease.
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Written emergency plans for fever spikes, breathing problems, or seizures, shared with local hospitals and schools.
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Participation in rare-disease registries or follow-up studies when possible, to improve knowledge and care guidelines over time.
When to See Doctors Urgently
You should seek urgent medical care (emergency department) if a child with Sohar-Crisponi syndrome has:
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High fever that does not come down with usual measures
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Breathing difficulty, pauses in breathing, or bluish lips
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Repeated vomiting or cannot keep any fluid down
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Seizure or unusual stiffening that lasts more than a few minutes
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Sudden change in consciousness, extreme sleepiness, or unresponsiveness
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Very fast or very slow heart rate, or fainting spells
Regular follow-up visits with specialists are also essential, even when the child seems stable, to adjust nutrition, therapies, and orthopedic or dental plans.
What to Eat and What to Avoid
Food choices must follow the child’s individual feeding plan (oral or tube) and any swallowing study results, but some general points are:
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Prefer energy-dense foods or formulas to get more calories in small volumes.
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Use appropriate textures (pureed, thickened) if advised by the swallow therapist to lower aspiration risk.
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Include good protein sources (as allowed): dairy, eggs, meats, or protein-enriched formulas to support muscle and immunity.
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Add healthy fats (oils, MCT, omega-3) under dietitian guidance for extra energy.
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Offer fruits and vegetables in safe textures to provide fiber, vitamins, and antioxidants.
Avoid or limit:
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Very thin liquids (like plain water or juice) if the child aspirates easily, unless thickened as recommended.
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Hard, crumbly foods (e.g., nuts, chips) that increase choking risk.
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Excessive sugary drinks, which add calories without nutrients and may harm teeth.
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Very salty or heavily processed foods that may strain heart and kidney function if your doctors have concerns.
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Unregulated “miracle” supplements or stem-cell products offered outside proper clinical trials.
Frequently Asked Questions
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Is Sohar-Crisponi syndrome always fatal in infancy?
No. Early reports described high infant mortality, but newer series show that with modern intensive care, feeding support, and careful fever management, many children survive and later develop the cold-induced sweating phase. -
Is it the same as cold-induced sweating syndrome?
Yes. Most experts now see Crisponi syndrome in infancy and cold-induced sweating syndrome type 1 in later childhood as different stages of the same condition, often grouped under “Sohar-Crisponi syndrome.” -
Which gene is usually involved?
About 90% of cases are due to mutations in the CRLF1 gene and around 10% to CLCF1; both affect the same signaling pathway for the CNTF receptor. -
Can parents be tested?
Yes. Genetic testing can confirm that parents are carriers of CRLF1 or CLCF1 mutations and help with future pregnancy planning and testing of relatives. -
Is there a specific medicine that cures the disease?
No. Current treatment is supportive and symptom-based. Drugs are used to manage fever, spasms, sweating, reflux, and infections, but they do not correct the underlying gene change. -
Why is clonidine sometimes used?
Clonidine reduces sympathetic nervous system activity and noradrenaline release. Case reports show that it can lessen cold-induced sweating episodes in some Crisponi / CISS patients. -
Do children with Sohar-Crisponi syndrome have normal intelligence?
Available reports suggest that many survivors have relatively preserved cognition, although motor and autonomic problems can affect development. Outcomes vary widely and depend on early complications and support. -
Will my child always need tube feeding?
Some children transition to safer oral feeding as muscle control improves, while others need long-term gastrostomy feeding. Decisions are based on swallow studies, growth, and aspiration risk. -
Is pregnancy possible in adults with this condition?
Data are very limited because the disease is rare, but survivors can reach adulthood. Genetic counseling is essential because each pregnancy of two carriers has a 25% chance of an affected child. -
How common is Sohar-Crisponi syndrome?
It is extremely rare, with an estimated prevalence far below 1 in 1,000,000, originally described in Sardinia but now reported worldwide. -
Are there clinical trials?
As of now, there are mainly observational studies, case reports, and genetic/feeding research. Families can search rare-disease registries and clinical-trials databases with their specialist to see if any new studies are open. -
Will my child’s symptoms change over time?
Yes. Severe muscle spasms, fevers, and feeding problems dominate infancy. If the child survives, cold-induced sweating and spine problems usually appear later in childhood or adolescence. -
Can ordinary childhood infections be more dangerous?
They can be, because fever spikes and breathing problems may trigger seizures or sudden deterioration. This is why early treatment, fever control, and sometimes hospitalization are recommended. -
What kind of doctors should follow my child?
Ideally a multidisciplinary team: neonatologist or pediatrician, neurologist, geneticist, dietitian, physiotherapist, orthopedist, pulmonologist, dentist, and psychologist, often coordinated in a rare-disease or genetic center. -
Where can families find support?
Families can look for rare-disease organizations, online support groups, and publications about Crisponi / cold-induced sweating syndrome to connect with other families and expert centers. Your local rare-disease network or genetic clinic is a good starting point.
Disclaimer: Each person’s journey is unique, treatment plan, life style, food habit, hormonal condition, immune system, chronic disease condition, geological location, weather and previous medical history is also unique. So always seek the best advice from a qualified medical professional or health care provider before trying any treatments to ensure to find out the best plan for you. This guide is for general information and educational purposes only. Regular check-ups and awareness can help to manage and prevent complications associated with these diseases conditions. If you or someone are suffering from this disease condition bookmark this website or share with someone who might find it useful! Boost your knowledge and stay ahead in your health journey. We always try to ensure that the content is regularly updated to reflect the latest medical research and treatment options. Thank you for giving your valuable time to read the article.
The article is written by Team RxHarun and reviewed by the Rx Editorial Board Members
Last Updated: February 09, 2025.
