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Full-Text Articles in Medicine and Health Sciences
Multivariate Criteria Most Accurately Distinguish Cardiac From Noncardiac Causes Of Dyspnea., Mirza Nubair Ahmad, Syed Hasan Yusuf, Rafath Ullah, Mirza Mujadil Ahmad, Mary K Ellis, Haroon Yousaf, Timothy E Paterick, Khawaja Afzal Ammar
Multivariate Criteria Most Accurately Distinguish Cardiac From Noncardiac Causes Of Dyspnea., Mirza Nubair Ahmad, Syed Hasan Yusuf, Rafath Ullah, Mirza Mujadil Ahmad, Mary K Ellis, Haroon Yousaf, Timothy E Paterick, Khawaja Afzal Ammar
The Texas Heart Institute Journal
Cardiopulmonary exercise testing provides oxygen pulse as a continuous measure of stroke volume, which is superior to other stress-testing methods in which systolic function is measured at baseline and at peak stress. However, the optimal peak oxygen pulse criterion for distinguishing cardiac from noncardiac causes of exercise limitation is unknown.
In comparing several peak oxygen pulse criteria against the clinical standard of cardiopulmonary exercise testing, we retrospectively studied 54 consecutive patients referred for cardiopulmonary exercise testing. These exercise tests included measurement of oxygen consumption, carbon dioxide production, breathing reserve, arterial blood gases at baseline and at peak stress, exercise electrocardiogram, …
Modified Maze Procedure For Atrial Fibrillation As An Adjunct To Elective Cardiac Surgery: Predictors Of Mid-Term Recurrence And Echocardiographic Follow-Up, Claudia Loardi, Francesco Alamanni, Fabrizio Veglia, Claudia Galli, Alessandro Parolari, Marco Zanobini
Modified Maze Procedure For Atrial Fibrillation As An Adjunct To Elective Cardiac Surgery: Predictors Of Mid-Term Recurrence And Echocardiographic Follow-Up, Claudia Loardi, Francesco Alamanni, Fabrizio Veglia, Claudia Galli, Alessandro Parolari, Marco Zanobini
The Texas Heart Institute Journal
The radiofrequency maze procedure achieves sinus rhythm in 45%–95% of patients treated for atrial fibrillation. This retrospective study evaluates mid-term results of the radiofrequency maze—performed concomitant to elective cardiac surgery—to determine sinus-rhythm predictive factors, and describes the evolution of patients' echocardiographic variables.
From 2003 through 2011, 247 patients (mean age, 64 ± 9.5 yr) with structural heart disease (79.3% mitral disease) and atrial fibrillation underwent a concomitant radiofrequency modified maze procedure. Patients were monitored by 24-hour Holter at 3, 6, 12, and 24 months, then annually. Eighty-four mitral-valve patients underwent regular echocardiographic follow-up. Univariate and multivariate analysis for risk factors …