Potassium cardioplegia: early assessment by radionuclide ventriculography. [/sup 99m/Tc tracer technique]

Journal Article · Fri Sep 01 04:00:00 EDT 1978 · Circulation; (United States)

OSTI ID:6589835

Ellis, R J; Born, M; Feit, T; Ebert, P A

Left ventricular function was evaluated by single pass /sup 99m/Tc radionuclide ventriculography when potassium cardioplegia was combined with hypothermia. In 35 patients undergoing myocardial revascularization (3 CABG/patient) in which potassium cardioplegia at 4/sup 0/C was used, no patient developed a myocardial infarction either by electrocardiogram or /sup 99m/Tc pyrophosphate imaging in the postoperative period. In 22 patients, aortic cross-clamp time was greater than 60 min, and the ejection fraction by the single pass radionuclide technique was 50% preoperatively and 53% postoperatively (NS). Wall motion in the single RAO view was not worse postoperatively. No patient required any inotropic agents in the immediate postoperative period. It appears that no significant ventricular impairment occurred in the immediate postoperative period (48 to 72 hours) when potassium cardioplegia combined with hypothermia was used for a 60-minute period.

• Research Organization: Veterans Administration Hospital, San Francisco
• OSTI ID: 6589835
• Journal Information: Circulation; (United States), Journal Name: Circulation; (United States) Vol. 58:3; ISSN CIRCA
• Country of Publication: United States
• Language: English

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550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
ALKALI METALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOMEDICAL RADIOGRAPHY
BODY
BODY TEMPERATURE
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
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MEDICINE
METALS
NUCLEAR MEDICINE
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
POTASSIUM
RADIOISOTOPE SCANNING
RADIOISOTOPES
RADIOLOGY
SCINTISCANNING
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TECHNETIUM 99
TECHNETIUM ISOTOPES
YEARS LIVING RADIOISOTOPES