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Effect of post-myocardial infarction streptokinase [SK] therapy, on myocardial viability - evaluation with thallium- 201 single photon emission computed tomography [TL-201 SPECT]
PAFMJ-Pakistan Armed Forces Medical Journal. 2011; 61 (3): 330-335
em Inglês | IMEMR | ID: emr-122832
ABSTRACT
To evaluate the effect of post-myocardial infarction Streptokinase therapy on myocardial viability, employing Thallium-201 single photon emission computed tomography [TL-201 SPECT]. Retrospective, experimental study. The Nuclear Cardiology Department, Armed forces Institute of Cardiology / National Institute of Heart Diseases, Rawalpindi, from 1[st] April 2009 to 31[st] October 2009. Male patients, who had suffered from acute myocardial infarction [AMI], in an area supplied by the left anterior descending [LAD] artery, had infarct-related electrocardiogram [ECG] changes and received or did not receive Streptokinase therapy, were included. Those with a normal ECG, or history of revascularization, or non-ST elevation MI, or more than on MIs, were excluded. The patients were divided into groups 1 [who received Streptokinase] and 2 [who did not receive Streptokinase]. Each group contained 42 patients and all underwent scintigraphic viability study through intravenous injection of 3.0 mCi [123 MBq] of TL-201, followed by rest-redistribution SPECT imaging on a dual head, dedicated cardiac gamma camera system [Philips Cardio MD [registered sign]]. Emory's cardiac toolbox [registered sign] and AutoQUANT [registered sign] were used for data processing and quantitative estimation of viable myocardium. Empirical scores from 0 to 2 were assigned to each of the scans, in the order of increasing viability, and these were compared across the two groups. Group 1 contained 42 patients [age range = 38 to 80 years, mean = 53.98 +/- 11.26 years], in whom empirical viability scoring was done. Score 0 was seen in 2 patients, score 1 was seen in 15 patients and score 2 was seen in 25 patients from this group. Group 2 also contained 42 patients [age range = 38 to 80 years, mean = 56.71 +/- 9.05 years], in whom viability score of 0 was seen in 3 patients, score 1 was seen in 11 patients and score 2 was seen in 28 patients from this group. Age difference between the two groups was statistically insignificant [p = 0.223]. The myocardial viability results analysed by 3 x 2 contingency table applying chi- square [X[2]] test also showed no significant difference between groups 1 and 2 [p= 0.611]. This study did not find any significant difference in myocardial viability - post- myocardial infarction - in patients who received or did not receive Streptokinase therapy
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Índice: IMEMR (Mediterrâneo Oriental) Assunto principal: Radioisótopos de Tálio / Tomografia Computadorizada de Emissão de Fóton Único / Estudos Retrospectivos / Eletrocardiografia / Infarto do Miocárdio / Miocárdio Limite: Humanos / Masculino Idioma: Inglês Revista: Pak. Armed Forces Med. J. Ano de publicação: 2011

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Índice: IMEMR (Mediterrâneo Oriental) Assunto principal: Radioisótopos de Tálio / Tomografia Computadorizada de Emissão de Fóton Único / Estudos Retrospectivos / Eletrocardiografia / Infarto do Miocárdio / Miocárdio Limite: Humanos / Masculino Idioma: Inglês Revista: Pak. Armed Forces Med. J. Ano de publicação: 2011