Elevated intracranial pressure
When the ICP is elevated the following symptomes may occur: vomiting, visual disturbance, bulging of the anterior fontanel, altered mental status, papilledema and headache.The main risks of prolonged elevated intracranial pressure may include cognitive impairment and impaired vision through prolonged papilledema and subsequent optic atrophy. These are the main reasons why fundoscopy should be performed during the physical examination of children with craniosynostosis.The causes of an elevation of the intracranial pressure are best understood using the Monro-Kellie doctrine. The Monro-Kellie doctrine reduces the cranial vault to a box with rigid walls. This box contains three elements: brain, intracranial blood and cerebrospinal fluid. The sum of volumes of these three elements is constant. An increase in one should cause a decrease in one or both of the remaining two, thereby preventing an elevation of the intracranial pressure.A compensatory mechanism involves the movement of cerebrospinal fluid from the cranial vault towards the spinal cord. The volume of blood in the cranial vault is auto-regulated by the brain, and will therefore not decrease that easily.Intracranial pressure will rise as a result of continued brain growth within the rigid skull. It appears that in children with craniosynostosis, the expected decrease of intracranial blood is probably not occurring as it should according to the Monro-Kellie hypothesis. This is shown when the brain expands in the fixed skull, which gives a faster rise in intracranial pressure than would be expected. Obstructive sleep apnea
The short stops in breathing during the sleep are the mainstay of OSA.
Heat cramps, a type of heat illness, are muscle spasms that result from loss of large amount of salt and water through exercise. Heat cramps are associated with cramping in the abdomen, arms and calves. This can be caused by inadequate consumption of fluids or electrolytes. Heavy sweating causes heat cramps, especially when the water is replaced without also replacing salt or potassium.Although heat cramps can be quite painful, they usually dont result in permanent damage, though they can be a symptom of heat stroke or heat exhaustion. Heat cramps can indicate a more severe problem in someone with heart disease or if they last for longer than an hour.In order to prevent them, one may drink electrolyte solutions such as sports drinks during exercise or strenuous work or eat potassium-rich foods like bananas and apples. When heat cramps occur, the affected person should avoid strenuous work and exercise for several hours to allow for recovery. See also
Dehydration

References
External links
Heat cramps first aid