1. What is a transmural infarction and how does it affect the heart?

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    Harsh Bhatiya

    Harsh Bhatiya community pageMbbs doctor · 2.8 years of expA transmural infarction is a severe heart attack where the damage extends through the full thickness of the heart muscle due to complete obstruction of a coronary artery. This type...Read more
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  2. Transmural myocardial infarction is an area of ischemic necrosis that extends through the full thickness of myocardial wall, including the endocardium, myocardium, and epicardium1. It is characterized by abnormal Q waves on ECG2. The progression of wall infarction starts from the least perfused region of the heart, the endocardial and subendocardial zones1. Nontransmural infarcts do not extend through the ventricular wall and cause only ST-segment and T-wave (ST-T) abnormalities2.
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    A transmural myocardial infarction (MI) is defined as an area of ischemic necrosis that extends through the full thickness of myocardial wall, including the endocardium, myocardium, and epicardium. The progression of wall infarction starts from the least perfused region of the heart, the endocardial and subendocardial zones.

    Transmural Myocardial Infarction | Cardi…

    academic.oup.com/book/25132/chapter/189430487
    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.

    Acute Myocardial Infarction (MI) - Cardio…

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  3. People also ask
    What is a non-transmural myocardial infarction?
    A non-transmural myocardial infarction is one that does not involve the full thickness of the myocardium. The terms Q wave MI, non-Q wave MI, transmural MI and non-transmural MI are no longer recommended for use. Instead, acute coronary syndromes are classified as unstable angina, non-ST elevation MI and ST elevation MI.

    Transmural myocardial infarction | Learn the Heart - Healio

    healio.com
    What is the primary symptom of a myocardial infarction?

    Dr. Mohan P. Abraham

    M.D., FAAFP (Family Physician) · 40 years of exp

    Symptoms and severity varies from person to person. The most common warning symptoms may include: Discomfort in the chest region Pressure or tightness in the chest Pain or discomfort in the arm, back or neck region- usually on the left side Excessive sweating Shortness of breath, either on exertion or at rest
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    bing.com
    What causes a transmural infarction?
    Coronary artery occlusion in animal models shows a "wave-front" of myocardial injury that spreads from the sub-endocardial myocardium to the sub-epicardial myocardium resulting in a transmural infarction that appears as an ST elevation on surface ECG.

    Acute ST-Elevation Myocardial Infarction - StatPearls - NCBI Bookshelf

    ncbi.nlm.nih.gov
    What is the prognosis of transmural myocardial infarction (MI)?
    In addition, transmural MI results in an overall poor prognosis and lack of recovery after revascularization. Transmural MI involves the full thickness of the myocardium, and the pathological appearance varies depending on whether its course is chronic or acute.

    Transmural Myocardial Infarction | Cardiac Imaging | Oxford Academic

    academic.oup.com
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  4. National Center for Biotechnology Information
    https://www.ncbi.nlm.nih.gov › books

    Acute ST-Elevation Myocardial Infarction

     
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  5. National Center for Biotechnology Information
    https://www.ncbi.nlm.nih.gov › pmc › articles

    Understanding myocardial infarction - PMC - National Center for ...

  6. The Merck Manuals
    https://www.merckmanuals.com › prof…

    Acute Myocardial Infarction (MI) - The Merck Manuals

    WEBLearn about the pathophysiology, symptoms, diagnosis, and treatment of acute MI, which can be transmural or nontransmural depending on the extent of myocardial necrosis. Find out the differences between STEMI …

  7. Mayo Clinic
    https://www.mayoclinic.org › diseases-conditions › ...

    Myocardial ischemia - Symptoms & causes - Mayo Clinic

  8. Healio
    https://www.healio.com › cardiology › learn-the-heart › ...

    Transmural myocardial infarction | Learn the Heart - Healio

  9. National Center for Biotechnology Information
    https://www.ncbi.nlm.nih.gov › books

    Myocardial Infarction - StatPearls - NCBI Bookshelf

    WEBAug 8, 2023 · Myocardial infarction (MI), colloquially known as “heart attack,” is caused by decreased or complete cessation of blood flow to a portion of the myocardium.

  10. Geeky Medics
    https://geekymedics.com › st

    ST-Elevation Myocardial Infarction (STEMI) - Geeky …

    WEBAug 20, 2023 · ST-elevation myocardial infarction (STEMI): characterised by transmural myocardial ischaemia causing myocardial injury/necrosis; diagnosed by acute anginal chest pain and ST elevation on an ECG. …

  11. Oxford Academic
    https://academic.oup.com › book › chapter

    Transmural Myocardial Infarction | Cardiac Imaging - Oxford …

  12. WebPath
    https://webpath.med.utah.edu › TUTORIAL › MYOCARD › ...

    Myocardial Infarction - University of Utah

  13. eMedicine
    https://emedicine.medscape.com › article

    Myocardial Infarction: Practice Essentials, Background, …

    WEBMay 7, 2019 · Myocardial infarction (MI) (ie, heart attack) is the irreversible death (necrosis) of heart muscle secondary to prolonged lack of oxygen supply (ischemia). Approximately 1.5 million cases of MI...

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