Related Experiment Video
Updated: Aug 8, 2026

Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
[Cerebrovascular disease in a Neurologic Intermediate Care Unit in Chile. Analysis of 459 consecutive patients]
Patricio Mellado T1, Jaime Court L, Jaime Godoy F
1Depertamento de Neurología, Hospital Clínico, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile. pmellado@med.puc.cl
Insights
The most common stroke type is ischemic stroke, with high blood pressure identified as the primary risk factor. This study analyzed 459 stroke patients, revealing key insights into stroke demographics and causes.
Area of Science:
- Neurology
- Epidemiology
Context:
- Stroke represents a significant global health burden, being the second leading cause of death and the primary cause of disability worldwide.
- There is a growing emphasis on evidence-based medicine for developing novel stroke therapies.
Purpose:
- To characterize the clinical presentation of patients experiencing strokes.
- To identify the various subtypes of stroke and their associated risk factors.
Summary:
- A retrospective analysis of 459 patient records admitted over 37 months was conducted.
- Ischemic stroke was the most prevalent subtype, accounting for 63% of cases.
- Hypertension was the most frequently identified risk factor, present in 70% of patients.
Impact:
- Findings highlight the predominance of ischemic stroke and the critical role of hypertension as a modifiable risk factor.
- This research provides valuable data for public health strategies and clinical management of stroke patients in Chile and globally.
Background:
Stroke is the second cause of mortality and the first cause of morbidity in Chile and worldwide. Nowadays there is a major interest in introducing new therapies applying evidence based medicine for these patients.
Aim:
To describe the clinical profile of patients attended after a stroke, to determine stroke subtypes and their risk factors.
Material And Methods:
Retrospective review of clinical records of 459 patients (mean age 65+/-48 years, 238 female) that were admitted to our unit during a period of 37 months.
Results:
Sixty three percent of patients had an ischemic stroke, 14% had an hemorrhagic stroke, 15% had a transient ischemic attack, 2% had a cerebral venous thrombosis and 6% a subarachnoidal hemorrhage. The global mortality was 1%. Seventy percent of patients had a history of high blood pressure.
Conclusions:
The most common type of stroke is ischemic and high blood pressure is the main risk factor.
Related Concept Videos
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Ischemic Stroke l: Introduction
Hemorrhagic Stroke l: Introduction
Hemorrhagic Stroke ll: Pathophysiology
Cerebral Edema ll: Pathophysiology
Dementia l: Introduction

