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ISCHAEMIC HEART Lecture 2 .pdf



Original filename: ISCHAEMIC HEART Lecture 2.pdf
Title: ISCHAEMIC HEART DISEASES (IHD)
Author: User

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ISCHAEMIC HEART
DISEASES (IHD)

A K M MOHIBULLAH
Professor of Cardiology &
Head of the Department of Cardiology

ISCHAEMIC HEART DISEASES (IHD)

Synonyms



Coronary Heart Diseases (CHD)
Coronary Artery Diseases (CAD)
Atherosclerotic Cardiac Diseases (ASCD)

IHD or Myocardial Ischaemia
Results
When coronary blood flow is inadequate
to meet the myocardial oxygen demand.
Imbalance between the myocardial oxygen
demand and coronary blood flow.

Some Form of Obstruction
has to occur
in coronary blood Flow

Atherosclerotic Changes
in the Coronary artery
In more than 99% cases

In less than 1% cases
Causes are
- Congenital abnormality of CA
- Coronary Embolism
- Syphilitic Aortitis
- PAN
- Aortic Stenosis
- Coronary Artery Spasm

Coronary heart diseases are
- Multifactorial Disease
- More common in male.
- incidence and mortality increases
with age.
- Most important single cause of death
throughout the world

Epidemiology of IHD


6.3 million suffer on acute MI each year globally



In USA, 800,000 people experience AMI and
213,000 die yearly from CHD.



In UK, 300,000 people have AMI and 150,000 die
from CHD yearly



In Bangladesh, the prevalence of CHD was
estimated as 3.3/1000 in 1976 and 17.2/1000 in
1986.
And In 2011 it was 51/ 1000

CLINICAL PRESENTATIONS









Asymptomatic
Sudden Death
Stable Angina Pectoris
Unstable Angina
Acute Myocardial Infarction
Heart Failure
Arrhythmia

These are the different end points in
the same Pathological process
These conditions are interrelated and one
patient can move from one group to another


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