Related Experiment Video

Updated: Aug 16, 2026

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
10:34

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage

Published on: August 30, 2020

[Hypertension and left ventricular hypertrophy in patients with spontaneous subarachnoid hemorrhage]

D B Toftdahl1, C T Torp-Pedersen, U H Engel

  • 1Medicinsk Afdeling C, Amtssygehuset i Glostrup.

Ugeskrift for Laeger
|March 3, 1997
PubMed

One hundred and eighteen consecutive cases of spontaneous subarachnoid haemorrhage seen at one hospital during a three-year period were examined to assess the prevalence of hypertension and the correlation between the presence of hypertension and the risk of early death. Eighty-seven of the patients had intracranial aneurysms. The diagnosis of hypertension was determined by means of three complementary criteria: a history of treatment with antihypertensive drugs; systolic and/or diastolic blood pressure levels > or = 160 and 95 mmHg, respectively, measured by the general practitioners of the patients before the onset of the subarachnoid haemorrhage; and the presence of left ventricular hypertrophy determined by echocardiography and/or necropsy. The major findings were as follows: 1) hypertension was present in at least 41% of the patients; 2) in 37% of 51 patients with no history of hypertension before the haemorrhage, left ventricular hypertrophy was diagnosed; and 3) the frequency of hypertension was significantly higher in patients who died within 14 days after the bleeding episode compared with patients surviving this period.

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