Cardiac resynchronization therapy improves the uptake of MIBI-99mTc and cardiac function

Arq Bras Cardiol. 2008 Sep;91(3):e33-6, e25-8. doi: 10.1590/s0066-782x2008001500013.
[Article in English, Portuguese]

Abstract

This case shows the improvement promoted by cardiac resynchronization therapy (CRT) on myocardial perfusion and left ventricular (LV) performance assessed by gated myocardial perfusion scintigraphy. The patient had idiopathic dilated cardiomyopathy, left bundle branch block and severe heart failure despite optimized medical treatment. After CRT, clinical improvement, QRS reduction and improvement of previously hypoperfused anterior and septal walls were observed. There was also decrease in LV end-diastolic and systolic volumes and increase in LV ejection fraction.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bundle-Branch Block / diagnostic imaging
  • Bundle-Branch Block / physiopathology
  • Bundle-Branch Block / therapy
  • Cardiac Pacing, Artificial*
  • Cardiomyopathy, Dilated* / diagnostic imaging
  • Cardiomyopathy, Dilated* / physiopathology
  • Cardiomyopathy, Dilated* / therapy
  • Female
  • Heart Failure / diagnostic imaging
  • Heart Failure / physiopathology
  • Heart Failure / therapy
  • Humans
  • Middle Aged
  • Radionuclide Imaging
  • Radiopharmaceuticals*
  • Stroke Volume / physiology
  • Technetium Tc 99m Sestamibi*
  • Time Factors
  • Ventricular Function, Left / physiology*

Substances

  • Radiopharmaceuticals
  • Technetium Tc 99m Sestamibi