Myocardial damage of the entire ventricular region in a patient with acute myocardial infarction

Technetium-99m-pyrophosphate (99mTc-PYP) has been used, in combination with thallium-201, to estimate the site and extent of myocardial infarcts. We report a case of acute myocardial infarction with severe coronary disease in which the distribution of 99mTc-PYP was extensive. A 78-year-old man prese...

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Published in:Asia oceania journal of nuclear medicine and biology 2020-01, Vol.8 (1), p.69-73
Main Authors: Kawamata, Hirofumi, Kawasaki, Tatsuya, Sugihara, Hiroki, Matoba, Satoaki
Format: Article
Language:English
Subjects:
Angiography
Angioplasty
Blood
Case Report
Case reports
Coronary artery
Coronary vessels
Dyspnea
Electrocardiography
Heart
Heart attacks
Heart diseases
Heart failure
Medical imaging
Myocardial infarction
Occlusion
Patients
pyrophosphate
Respiration
scintigraphy
subendocardium
Technetium
Thallium
Thallium-201
Veins & arteries
Ventricle
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Kawasaki, Tatsuya
Sugihara, Hiroki
Matoba, Satoaki
description Technetium-99m-pyrophosphate (99mTc-PYP) has been used, in combination with thallium-201, to estimate the site and extent of myocardial infarcts. We report a case of acute myocardial infarction with severe coronary disease in which the distribution of 99mTc-PYP was extensive. A 78-year-old man presented with dyspnea, and a diagnosis of non-ST-segment elevation acute myocardial infarction was made. Emergency coronary angiography revealed total occlusion of the proximal portion of the right coronary artery and left circumflex coronary artery with collateral flow from the left anterior descending coronary artery, which also had severe stenoses. Given his comorbidities and preferences, subsequent angioplasty was waived. Dual myocardial scintigraphic imaging, which was performed four days after admission, demonstrated slightly reduced thallium-201 uptake in the inferior wall and apex, whereas 99mTc-PYP was positive in the entire left ventricular subendocardial region and the free wall of the right ventricle. His clinical course was uneventful with conservative treatment and the patient was discharged 20 days after admission in a stable condition.
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subjects Angiography
Angioplasty
Blood
Case Report
Case reports
Coronary artery
Coronary vessels
Dyspnea
Electrocardiography
Heart
Heart attacks
Heart diseases
Heart failure
Medical imaging
Myocardial infarction
Occlusion
Patients
pyrophosphate
Respiration
scintigraphy
subendocardium
Technetium
Thallium
Thallium-201
Veins & arteries
Ventricle
title Myocardial damage of the entire ventricular region in a patient with acute myocardial infarction
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