J Neurol Surg A Cent Eur Neurosurg 2014; 75(04): 299-304
DOI: 10.1055/s-0034-1368691
Original Article
Georg Thieme Verlag KG Stuttgart · New York

An Analysis of 88 Patients with Diffuse and “Benign” Perimesencephalic Subarachnoid Hemorrhage

Neal B. Patel
1   Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
,
Amrita D. Patel
1   Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
,
Jared Wilkinson
1   Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
,
Nicholas G. Gianaris
1   Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
,
Troy D. Payner
1   Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
,
Thomas J. Leipzig
1   Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
,
Shaheryar Ansari
1   Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
,
Aaron A. Cohen-Gadol
1   Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
› Institutsangaben
Weitere Informationen

Publikationsverlauf

02. Mai 2013

06. November 2013

Publikationsdatum:
19. Februar 2014 (online)

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Abstract

Background and Study Aims Perimesencephalic subarachnoid hemorrhage (PMSAH) was previously defined as a variant of subarachnoid hemorrhage (SAH) associated with a relatively benign clinical presentation and better outcomes than aneurysmal SAH. However, several prior studies have shown complications associated with PMSAH including vasospasm and hydrocephalus, and the need for follow-up imaging. We therefore reviewed our experience to further characterize the clinical consequences of PMSAH.

Materials and Methods Eighty-eight consecutive patients who sustained spontaneous intracranial SAH and whose cerebral angiograms did not show any obvious source for SAH were retrospectively studied to characterize their prognosis and outcome based on SAH pattern. Glasgow Coma Scale and Hunt-Hess scores on admission, the incidence of vasospasm or hydrocephalus, the need for an external ventricular drain, and shunt dependence, along with Glasgow outcome score (GOS) at discharge and follow-up, were used to draw comparisons between perimesencephalic and diffuse SAH patient populations.

Results Patients with perimesencephalic SAH differed statistically (p < 0.05) from patients with diffuse SAH in regard to age, Hunt-Hess score on presentation, hospital length of stay, GOS at discharge, and incidence of hydrocephalus, angiographic vasospasm, and clinical vasospasm.

Conclusion Our data demonstrate that although the patients with perimesencephalic SAH fared better than those with diffuse SAH, their outcomes were worse than those of similar patients with PMSAH who have been previously reported in the literature.