Changes in hemorrhage pattern on consecutive non-contrast CT scans in non-aneurysmal subarachnoid hemorrhage patients.

ABSTRACT:

Introduction

The diagnosis perimesencephalic subarachnoid hemorrhage (PMSAH) is based on a specific distribution pattern within 72 h after ictus. However solid evidence is lacking for this time window with the potential risk that blood distribution can change over time, with implications for the management of these patients.

Research question

To study cisternal and intraventricular blood pattern changes on initial and follow-up non-contrast CT scans (NCCTs) during the first 72 h.

Materials and methods

This retrospective study included consecutive PMSAH and non-perimesencephalic (NPSAH) patients in whom at least two NCCTs were performed within the first 72 h. Presence and changes in the distribution of cisternal and intraventricular blood was independently assessed by

SUBMITTER: van den Berg R 

PROVIDER: S-EPMC12466301 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature