Harlequin Ichthyosis: Causes, symptoms, complications and treatment.
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Harlequin ichthyosis is a rare, congenital skin condition. It affects the skin over almost the whole body of an infant, and carries a high risk of neonatal death due to severe and life-threatening infection. Harlequin ichthyosis occurs in approximately one in every 500,000 people. Males and females both are equally vulnerable to this disorder. To know more visit here: www.lazoi.com
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Harlequin Ichthyosis: Causes, symptoms, complications and treatment.
- 1. Causes | Symptoms | Complications | Treatment
- 2. Harlequin ichthyosis is a rare, congenital skin condition. It affects the skin over almost the whole body of an infant, and carries a high risk of neonatal death due to severe and life-threatening infection. Harlequin ichthyosis occurs in approximately one in every 500,000 people. Males and females both are equally vulnerable to this disorder.
- 3. Harlequin ichthyosis is caused by a mutation of the ABCA12 gene. This gene helps to direct the production of the ABCA12 protein involved in transporting fats within the epidermis, which is essential for normal skin synthesis. Various mutations are found. Some can stop the production of this protein, or induce the production of an abnormal form of the protein. Harlequin ichthyosis is inherited in an autosomal recessive fashion, which means patients with this disorder have two copies of the mutated genes, one inherited from each parent. If two people with the mutation have a child, there is a 25% chance that the child will be affected. The parents are carriers of the mutated gene and show no sign of the disease because they have one normal copy which compensates for the defective one.
- 4. Thick skin plates that crack and split Distorted facial features Tight skin around eyes and mouth (may force eyelids and lips to turn inside out and affect ability to feed) Restricted breathing (when chest or abdomen is affected) Hands and feet that are small, swollen and partially flexed Deformed ears or ears fused to the head (may appear to be missing) High blood sodium levels
- 5. External deformities: The child’s appearance is distorted by the rigid skin. Thus some infants may have no apparent external ears, or deformed ears, because the abnormal skin draws them tightly inwards. The eyes and the eyelids are often affected in various ways. In some, the eyelids cannot close properly. In others the swollen eyelids obscure the eye area. The hands and feet may be smaller than usual, with restricted mobility of fingers and toes. Breathing: Individuals with harlequin ichthyosis often suffer from respiratory problems or even respiratory failure. This is due to the restriction of chest movement by the tight thick skin.
- 6. Eating: Infants born with the condition may have to be fed with a tube through the nose in early neonatal life, as their ability to suck and swallow is restricted. Dehydration: The deeply fissured skin allows the loss of excessive amounts of salt and water, which may result in severe dehydration. This in turn affects the regulation of body temperature and may induce hypothermia. Infection: Life-threatening infections may set in within the early days of life due to the entry of pathogens through the disrupted skin barrier.
- 7. Intravenous tubes to deliver fluids and nutrition Monitoring of electrolytes and sodium Lubrication and protection of the eyes, if eyelids are forced open Heated, high humidity incubator to maintain body temperature and prevent skin cracks Antibiotics may be prescribed to prevent infection Retinoids may be prescribed to accelerate shedding of the skin scales
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