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Related Concept Videos

Regulation of Stroke Volume01:27

Regulation of Stroke Volume

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The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
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Cardiac Output and Stroke Volume01:11

Cardiac Output and Stroke Volume

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Cardiac output (CO) is an integral aspect of human physiology, reflecting the heart's efficiency and responsiveness to the body's needs. It represents the volume of blood that the left or right ventricle ejects into the aorta or pulmonary trunk each minute. The CO is calculated by multiplying the heart rate (HR)—the number of heartbeats per minute—by the stroke volume (SV)—the amount of blood pumped out with each heartbeat.
In an average resting adult male, the typical cardiac...
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Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

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Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
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Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

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To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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Decreased pulse rate01:14

Decreased pulse rate

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Bradycardia is a medical condition in which the heart rate is slower than normal. It occurs when the heart's natural pacemaker, the sinus node, generates slower electrical impulses than the standard rhythm. In adults, bradycardia is diagnosed when the pulse rate falls below 60 beats per minute, indicating a deviation from the normal heart rate range.
There are specific risk factors that can elevate the likelihood of developing bradycardia. Advanced age is a significant factor, with...
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Pulse Assessment Sites01:11

Pulse Assessment Sites

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Pulse assessment sites are crucial in evaluating a patient's cardiovascular health. By assessing the pulsations of arteries at specific anatomical locations, healthcare professionals can gather valuable information about blood flow, heart rate, and peripheral circulation. Understanding these pulse assessment sites is essential for conducting comprehensive cardiovascular evaluations and monitoring patients' overall health. These sites are strategically chosen due to the accessibility and...
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Related Experiment Video

Updated: Sep 26, 2025

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
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Stroke in Djibouti.

Mohamed Ahmed Nour1,2,3,4, Saloua Mrabet1,2,3, Mouled Ali Maidal4

  • 1Neurology Department, Razi University Hospital, Manouba, TUNIS, TUNISIA.

African Journal of Emergency Medicine : Revue Africaine De La Medecine D'Urgence
|April 25, 2022
PubMed
Summary

Stroke in Djibouti is linked to modifiable factors like hypertension, tobacco, and khat use, particularly in younger males. These findings highlight the need for targeted public health strategies to reduce stroke incidence and mortality.

Keywords:
Epidemiology, Cardiovascular risk factorsStroke, Djibouti, Khat

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Area of Science:

  • Neurology
  • Public Health
  • Epidemiology

Background:

  • Stroke represents a significant neurological emergency with substantial mortality in both developed and developing nations.
  • In Djibouti, stroke ranks as the fourth leading cause of death, underscoring its public health importance.

Purpose of the Study:

  • To delineate the demographic and clinical characteristics of stroke patients in Djibouti.
  • To identify prevalent risk factors associated with stroke occurrence in the Djiboutian population.

Main Methods:

  • A 6-month cross-sectional, multicenter study was conducted across three key Djiboutian healthcare facilities.
  • Seventy patients diagnosed with stroke were included in the analysis.

Main Results:

  • The study population had a mean age of 59.61 years, with a male predominance (sex ratio 2.5).
  • Key cardiovascular risk factors identified were hypertension (73%), khat chewing (64%), and tobacco use (50%).
  • Motor deficits (94%) were the most frequent clinical presentation, with ischemic stroke accounting for 61.5% of cases.

Conclusions:

  • Stroke in Djibouti is strongly associated with modifiable risk factors, notably hypertension, tobacco, and khat use, especially in males under 60.
  • These findings are crucial for developing effective preventive strategies and informing public health policy in the region.