Follow-up technetium-99m stannous pyrophosphate myocardial scintigrams after acute myocardial infarction
| Autor: | K P Lyons, Wilbert S. Aronow, W T Brown, R S Greenfield, H G Olson |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
Adult
Male medicine.medical_specialty Myocardial Infarction Scintigraphy Pyrophosphate Isotopes of technetium Angina chemistry.chemical_compound Physiology (medical) Technetium-99 Internal medicine medicine Humans cardiovascular diseases Myocardial infarction Radionuclide Imaging Aged medicine.diagnostic_test business.industry Technetium Middle Aged medicine.disease chemistry Heart failure Acute Disease Cardiology Female Cardiology and Cardiovascular Medicine business Technetium-99m |
| Zdroj: | Circulation. 56:181-187 |
| ISSN: | 1524-4539 0009-7322 |
| Popis: | Technetium-99m stannous pyrophosphate (99mTc-PYP) myocardial scintigrams were obtained in 68 patients during acute myocardial infarction (AMI) and at follow-up 15.9 +/- 8.8 weeks later. All patients with AMI had a positive scintigram (2+ or greater); only one of 46 control patients (2%) had a positive (2+) scintigram. At follow-up scintigraphy 6 to 37 weeks following AMI, 57% of patients had a persistently positive scintigram even though recurrent AMI was suspected in only one of these patients. Patients with persistently positive scintigrams tended to have more severe disease as evidenced by compensated congested heart failure (41%) persistent angina (77%), and ECG evidence of ventricular dyssynergy (51%), We conclude that 1) in patients with prior AMI, a 2+ abnormality on 99mTc-PYP scintigram may not represent new AMI; 2) a persistently positive 99mTc- PYP scintigram may have prognostic implications since it occurs predominantly in patients with severe symptomatic coronary disease. |
| Databáze: | OpenAIRE |
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