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Related Concept Videos

Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...

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Related Experiment Video

Updated: Jul 11, 2026

Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide
09:52

Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide

Published on: January 15, 2017

Stroke in Qatar: a one-year, hospital-based study.

A Hamad1, A Hamad, T E Sokrab

  • 1Neurology Section, Hamad General Hospital, Doha, Qatar.

Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association
|October 2, 2007
PubMed
Summary

This study investigated stroke incidence and outcomes in Qatar, finding lower overall rates than other nations but a high prevalence of hypertension and diabetes among patients. The 30-day fatality rate for stroke was 16%.

Related Experiment Videos

Last Updated: Jul 11, 2026

Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide
09:52

Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide

Published on: January 15, 2017

Area of Science:

  • Neurology
  • Epidemiology
  • Public Health

Background:

  • Stroke represents a significant health concern in Qatar, with limited prior epidemiological data available.
  • This study addresses the gap by providing crucial insights into stroke patterns in the region.

Purpose of the Study:

  • To determine the incidence, types, and 30-day fatality rate of stroke in Qatar.
  • To establish community-based estimations of stroke occurrence and characteristics.

Main Methods:

  • Retrospective analysis of hospital discharge records (ICD 9 codes 430-438) from 1997.
  • Case identification supplemented by death certificates and brain CT scan records.
  • Data collected from the sole hospital in Qatar, serving as a proxy for community-based estimations.

Main Results:

  • Identified 217 first-ever stroke cases with an overall incidence of 41 per 100,000 inhabitants/year.
  • Stroke subtypes: 80% ischemic, 19% intracerebral hemorrhage, 1% subarachnoid hemorrhage.
  • Key risk factors included hypertension (63%) and diabetes mellitus (42%); 30-day fatality rate was 16%.

Conclusions:

  • Stroke incidence in Qatar is lower compared to global averages, with a notable low rate of subarachnoid hemorrhage.
  • The younger mean age of stroke patients (57 years) reflects Qatar's demographic profile.
  • High rates of hypertension and diabetes among patients underscore the need for targeted public health interventions.