A 68 year-old man, initially managed with primary percutaneous coronary intervention (PCI) to the right coronary artery (RCA) for an inferior ST elevation myocardial infarction (STEMI) with residual disease requiring coronary artery bypass graft surgery (CABG), re-presented with chest pain. There were no acute ischaemic changes on ECG and his pain settled with nitrates. A day later, he developed left sided abdominal pain and hypovolaemic shock after straining in the toilet.
View Article and Find Full Text PDFBackground: Return to work is an important indicator of recovery after acute cardiac events. This study aimed to determine rates of work resumption and identify predictors of non-return to work and delayed resumption of work.
Methods: 401 currently employed patients consecutively admitted after acute coronary syndrome or to undergo coronary artery bypass graft surgery were recruited.
Anomalous single coronary artery with coronary fistula is a rare finding. This is a case report of an unusual single coronary artery arising from left coronary sinus and terminating into right ventricle through a coronary cameral fistula to form a left to right shunt. This case report also illustrates how well the non-invasive CT coronary angiography with a 16-slice CT scanner characterizes the anatomy of anomalous coronary artery with a coronary cameral fistula.
View Article and Find Full Text PDFAims: Organic nitrates, via nitric oxide (NO) release, induce vasodilatation and inhibit platelet aggregation. Development of nitrate tolerance in some vascular preparations may be associated with diminished responsiveness to NO. To date it is not known to what extent vascular tolerance to organic nitrates is associated with acquired platelet hypo-responsiveness to NO.
View Article and Find Full Text PDFThe prognostic values of tissue Doppler imaging and color M-mode diastolic indexes were studied in 225 patients who had symptomatic systolic heart failure in the ADEPT study. The primary end point of death, transplantation, or hospitalization due to heart failure occurred in 65 patients and was independently predicted by shorter deceleration time, lower ratio of pulmonary vein systolic to diastolic velocity, and increasing levels of the ratios of early transmitral velocity to early annular velocity or velocity of propagation. For the ratio of early transmitral velocity to early annular velocity, this prediction was additive to deceleration time.
View Article and Find Full Text PDFPurpose: To assess whether there is survival benefit for patients with mild or moderate aortic stenosis if they undergo aortic valve replacement at the time of coronary artery bypass surgery.
Methods: From 1985 to 1995 we evaluated all patients at our institution who underwent coronary artery bypass surgery and who had the echocardiographic diagnosis of mild (mean gradient <0 mm Hg and/or valve area >1.5 cm(2)) or moderate (mean gradient > or =30 and < or =40 mm Hg and/or valve area >1.
Objectives: This study was designed to characterize the importance of echocardiographic indexes, including newer indexes of diastolic function, as determinants of plasma B-type natriuretic peptide (BNP) levels in patients with systolic heart failure (SHF).
Background: Plasma BNP levels have utility for diagnosing and managing heart failure. However, there is significant heterogeneity in BNP levels that is not explained by left ventricular size and function alone.
Objective: We sought to assess whether aortic valve replacement (AVR) among patients with severe aortic stenosis (AS), severe left ventricular (LV) dysfunction and a low transvalvular gradient (TVG) is associated with improved survival.
Background: The optimal management of patients with severe AS with severe LV dysfunction and a low TVG remains controversial.
Methods: Between 1990 and 1998, we evaluated 68 patients who underwent AVR at our institution (AVR group) and 89 patients who did not undergo AVR (control group), with an aortic valve area < or = 0.