What is transmural injury?
What is transmural injury?
The transmural cell damage gradient may be the result of transmural gradients of wall. stress and intramyocardial pressure in vivo. Therefore, it appears that factors other than blood flow. are the major determinants of ischemic cellular damage in the left ventricular wall of hearts lacking. a collateral blood supply. …
What is affected in transmural infarction?
Infarct extent Transmural infarcts involve the whole thickness of myocardium from epicardium to endocardium and are usually characterized by abnormal Q waves on ECG. Nontransmural (including subendocardial) infarcts do not extend through the ventricular wall and cause only ST-segment and T-wave (ST-T) abnormalities.
What is Subendocardial ischemia?
Abstract. Most forms of heart disease cause myocardial damage which often is confined to the deep (subendocardial) layer of left ventricular muscle. Much clinical and experimental evidence suggests that subendocardial muscle is prone to ischaemic damage, and a physiological mechanism for this vulnerability is described …
How do they treat ischemia?
Treatment for myocardial ischemia involves improving blood flow to the heart muscle. Treatment may include medications, a procedure to open blocked arteries (angioplasty) or bypass surgery. Making heart-healthy lifestyle choices is important in treating and preventing myocardial ischemia.
What is the difference between infarct and ischemia?
Ischemia denotes diminished volume of perfusion, while infarction is the cellular response to lack of perfusion.
What are the types of myocardial infarction?
Myocardial infarction has been classified into types 1 to 5 of which type 4 has subtypes a and b. Type 1 is spontaneous myocardial infarction due to a primary coronary event like plaque rupture. Type 2 is secondary to a supply demand mismatch as in coronary vasospasm, anemia or hypotension .
What is a nontransmural infarction?
nontransmural myocardial infarction. non·trans·mu·ral my·o·car·di·al in·farc·tion (NTMI), necrosis of heart muscle that fails to extend from the endocardium completely to the epicardium, often erroneously considered relatively benign.
What is an inferior myocardial infarction?
An inferior myocardial infarction is a problem with the heart where cells along the inferior wall of the heart die in response to oxygen deprivation.
What is transmural injury? The transmural cell damage gradient may be the result of transmural gradients of wall. stress and intramyocardial pressure in vivo. Therefore, it appears that factors other than blood flow. are the major determinants of ischemic cellular damage in the left ventricular wall of hearts lacking. a collateral blood supply. … What…