(Stroke. 1997;28:1185-1188.)
© 1997 American Heart Association, Inc.
Articles |
Prognostic Value of Admission Blood Pressure in Patients With Intracerebral Hemorrhage
Keio Cooperative Stroke Study
From the Division of Neurology, Shimizu Municipal Hospital (Y.T.), and the Department of Neurology, School of Medicine, Keio University, Tokyo (N.T., Y.F., F.G.), Japan.
Correspondence to Dr Yasuo Terayama, CBF Laboratory, VA Medical Center, 151-A, 2002 Holcombe Blvd, Houston, TX 77030.
Background and Purpose Patients with acute stroke on admission to the hospital are often found to have high blood pressure. The purpose of the present study was to investigate the prognostic value of admission blood pressure in patients with acute intracerebral hemorrhage, including putaminal, thalamic, subcortical, cerebellar, and pontine hemorrhage.
Methods A total of 1701 patients with intracerebral hemorrhage of the putamen (n=776; mean±SD age, 58±14 years), thalamus (n=538; 63±12 years), subcortex (n=153; 61±16 years), cerebellum (n=110; 64±11 years), and pons (n=124; 59±13 years) were examined. The mean blood pressure on admission in patients with a fatal outcome was compared with that in patients who survived.
Results The mean age in each patient group (putaminal, thalamic, subcortical, cerebellar, and pontine hemorrhage) with fatal outcome was older than that with nonfatal outcome, while ANCOVA indicated no correlation between age and blood pressure on admission or age and volume of hematoma. The mean arterial blood pressure on hospital admission was 126.9±25.8 mm Hg (±SD) in cases of putaminal, 127.4±22.6 mm Hg in thalamic, 116.4±20.6 mm Hg in subcortical, 123.5±23.9 mm Hg in cerebellar, and 133.0±26.0 mm Hg in pontine hemorrhage. The mean blood pressure on admission in patients with a fatal outcome among those with putaminal (136.0±36.3 mm Hg) and thalamic (133.2±22.1 mm Hg) hemorrhage was significantly higher than that in those with a nonfatal outcome (123.8±20.6 mm Hg for putaminal, 101.6±22.5 mm Hg for thalamic) (P<.01). No correlation between mean blood pressure and outcome was observed in the patients with subcortical (116.5±22.2 mm Hg for nonfatal, 114.9±22.0 mm Hg for fatal outcome), cerebellar (125.2±22.2 mm Hg, 116.9±28.8 mm Hg), and pontine (129.9±23.8 mm Hg, 136.0±27.7 mm Hg) hemorrhage. The volume of hematoma on admission in patients with fatal outcome with putaminal (58.2±24.4 mL), thalamic (27.0±13.1 mL), subcortical (32.9±14.4 mL), and cerebellar (31.4±28.6 mL) hemorrhage was greater than that in those with nonfatal outcome (20.8±11.4 mL, 7.1±4.8 mL, 18.3±10.6 mL, and 8.1±4.2 mL, respectively; P<.01), while no correlation between volume of hematoma and outcome was observed in patients with pontine hemorrhage.
Conclusions The above data suggest that an increased mean blood pressure and volume of hematoma on admission in putaminal and thalamic hemorrhage were related to increased mortality, while in patients with subcortical, cerebellar, and pontine hemorrhage, the mean blood pressure was not related to the clinical outcome.
Key Words: blood pressure • intracerebral hemorrhage • hematoma • outcome
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