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The ICP gradually falls but remains slightly elevated, and the CSF pressure reaches a high normal level of 15 to 20 cm H 2 O. Measurements of ICP, therefore, are not usually elevated. Because of this, patients do not exhibit the classic signs that accompany increased intracranial pressure such as headache, nausea, vomiting, or altered ...
A study found 18% of patients with intracranial arachnoid cysts had non-specific headaches. The cyst was in the temporal location in 75% of these cases. [7] Seizures [2] Hydrocephalus (excessive accumulation of cerebrospinal fluid) [2] Increased intracranial pressure [2] Developmental delay [2] Behavioral changes [2] Nausea; Dysdiadokinesis
Attention deficit disorder: ADD-RT Attention deficit disorder – residual type ADEM Acute disseminated encephalomyelitis: ADHD Attention deficit hyperactivity disorder: AERD Aspirin exacerbated respiratory disease: AF or A-fib Atrial fibrillation: AGS Aicardi–Goutières syndrome: AH Acquired hemophilia AHA Acquired hemophilia A AHB Acquired ...
The International Classification of Headache Disorders (ICHD) is a detailed hierarchical classification of all headache-related disorders published by the International Headache Society. [1] It is considered the official classification of headaches by the World Health Organization , and, in 1992, was incorporated into the 10th edition of their ...
Many of the complications require immediate shunt revision (the replacement or reprogramming of the already existing shunt). The common symptoms often resemble a new onset of hydrocephalus, such as headaches, nausea, vomiting, double vision, and an alteration of consciousness. This can result in damage to an individual's short-term memory. [10]
Normal pressure hydrocephalus is estimated to affect about 5 per 100,000 people, with rates increasing with age. [6] Description of hydrocephalus by Hippocrates dates back more than 2,000 years. [5] The word hydrocephalus is from the Greek ὕδωρ, hydōr, meaning 'water' and κεφαλή, kephalē, meaning 'head'. [7]
When a patient has communicating hydrocephalus, the lateral ventricles and medial parts of the temporal lobes expand and compress the aqueduct. As a result, the pressure within the fourth ventricle drops and causes the aqueduct to close more tightly. This in effect could make aqueductal stenosis a byproduct of hydrocephalus. [8]
This is a shortened version of the sixth chapter of the ICD-9: Diseases of the Nervous System and Sense Organs. It covers ICD codes 320 to 389. The full chapter can be found on pages 215 to 258 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1.