Myocardial perfusion SPECT findings in postCOVID period

Mine Araz1, Çiğdem Soydal2, Gizem Sütçü2

  • 1Department of Nuclear Medicine, Ankara University Medical School, Ankara, Turkey. minesoylu@yahoo.com.

Insights

COVID-19 survivors show increased risk of myocardial ischemia and need for cardiac interventions. Myocardial perfusion scans (MPS) are reliable for assessing cardiovascular symptoms post-COVID-19.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Public Health

Background:

  • COVID-19 infection can impact cardiovascular health.
  • Long-term effects of COVID-19 on the heart are still being investigated.
  • Understanding post-COVID-19 cardiac complications is crucial for patient management.

Purpose of the Study:

  • To determine if COVID-19 infection increases the risk of myocardial ischemia on myocardial perfusion scans (MPS).
  • To assess if COVID-19 survivors require more coronary angiographies (CAG).
  • To evaluate the necessity for invasive treatments (stent implantation, CABG) or medical therapy in COVID-19 patients.

Main Methods:

  • A study group of patients with symptomatic COVID-19 (PCR positive) within 6 months underwent MPS.
  • A control group of age- and gender-matched patients, who underwent MPS before the pandemic (Jan 2019-Sep 2019), was selected.
  • Frequencies of ischemia, CAG, and treatments were compared between the COVID-19 group and the control group.

Main Results:

  • Ischemia was significantly more frequent in the COVID-19 group (p < 0.001).
  • The need for invasive evaluation (CAG) and treatment (medical or invasive) was higher in the COVID-19 group, regardless of MPS results (p=0.006 and p=0.015).
  • This trend persisted for patients with abnormal MPS results but not for those with ischemia.

Conclusions:

  • COVID-19 infection is associated with a significant increase in myocardial ischemia, CAG procedures, and cardiac treatments.
  • Myocardial perfusion scan (MPS) is a reliable tool for evaluating cardiovascular symptoms in patients with a history of COVID-19.
Abstract

Related Concept Videos

Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
48
Myocarditis II: Clinical Features and Diagnostic Tests01:27

Myocarditis II: Clinical Features and Diagnostic Tests

Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
49
Pericarditis II: Clinical Features and Diagnostic Tests01:19

Pericarditis II: Clinical Features and Diagnostic Tests

Pericarditis is distinguished by inflammation of the pericardium, the fibrous sac that encases the heart. It can be acute, lasting less than six weeks, or chronic, persisting for over three months. Understanding its clinical manifestations and diagnostic findings is crucial for timely and effective management.Clinical ManifestationsWhile pericarditis can be asymptomatic, it usually presents with characteristic symptoms such as:Chest Pain: The most characteristic symptom of pericarditis is chest...
67
Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
437
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...
87
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
139