Monday 2 December 2013

Upper head hemorrhaging: Subarachnoid hemorrhage (SAH) - The Complications and diseases associated with SAH

Hemorrhaging is also known as bleeding or abnormal bleeding as a result of blood loss due to internal.external leaking from blood vessels or through the skin.
Subarachnoid hemorrhage (SAH)
Subarachnoid hemorrhage (SAH) is defined as a condition of the presence of blood  within the subarachnoid space (the area between the brain and the thin tissues that cover the brain).
Complications and diseases associated with SAH
1. Changes in coagulative and fibrinolytic activities
Both coagulative and fibrinolytic activities were altered after the onset of SAH. These results demonstrate that the coagulative/fibrinolytic cascade might be activated via different mechanisms in different types of stroke(18).

2. Terson's Syndrome
TS was diagnosed in 20 of 155 SAH patients (30 eyes), and detected in 16 (14.16%) of 113 patients with aneurysmal SAH and four (9.52%) of 42 patients with traumatic SAH. No correlations were found between state-of-consciousness, GCS scores, and presence of TS in patients with traumatic SAH. Among patients suffering from aneurysmal SAH, however, significant relationships were observed between state-of-consciousness, GCS scores, Hunt-Hess grades, and incidence of TS (p < 0.01). No statistically significant difference was observed between men and women with regard to the incidence of TS (χ(2) = 0.821, p = 0.365)(19).

3. Fahr's Disease
there is a report of a case of an acute IBCG presentation in which the cause of the deterioration was an aneurysmal subarachnoid hemorrhage(20).

4. Hydrocephalus 
Hydrocephalus, also known as "water in the brain" is defined as complex and multifactorial neurological disorders of accumulation of cerebrospinal fluid (CSF) in the cavity of brain of that can lead to intracranial pressure inside the side, resulting of brain trauma, stroke, infection, tumor, etc. Acute hydrocephalus is present in 20% of patients with subarachnoid hemorrhage. One third of them may be asymptomatic on admission; 50% of those who have clinical hydrocephalus recover spontaneously within the first 24 h. The presence of acute hydrocephalus after subarachnoid hemorrhage is associated with additional morbidity and higher mortality secondary to rebleeding(21).

5. Etc.
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Sources
(18) http://www.ncbi.nlm.nih.gov/pubmed/16671428 
(19) http://www.ncbi.nlm.nih.gov/pubmed/22913767
(20) http://www.ncbi.nlm.nih.gov/pubmed/22754741
(21) http://www.ncbi.nlm.nih.gov/pubmed/9586937 

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