High negative predictive value of workload ≥7 METS on exercise testing in patients with normal gated myocardial perfusion imaging: Was imaging really required
Publish place: Iranian Journal of Nuclear Medicine، Vol: 22، Issue: 2
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
View: 329
This Paper With 7 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IRJNM-22-2_006
تاریخ نمایه سازی: 21 بهمن 1398
Abstract:
Introduction: Good functional capacity has a high negative predictive value (NPV) in patients with known or suspected coronary artery disease (CAD) similar to a normal gated myocardial perfusion imaging (GMPI). Aim of this study was to evaluate NPV of functional capacity during treadmill exercise in patients with normal GMPI in Pakistani population.
Methods: This was a prospective study which included 1318 individuals with normal exercise GMPI. On the basis of maximal age predicted heart rate (MAPHR) and metabolic equivalents (METS) achieved, these patient were divided into Group A: ≥ 85% MAPHR and ≥7 METS (714 patients), Group B: ≥85% MAPHR and <7METS (145 patients), Group C: <85% MAPHR and ≥7 METS (289 patients) and Group D: <85% MAPHR and <7 METS (170 patients). Patients were followed up on telephone (15 ±3 months) for fatal or non-fatal myocardial infarction (FMI and NFMI).
Results: There was no MI in any group but NFMIs was reported in 2.07% in Group B and 2.35% in Group D. NPV of a normal GMPI in relation with functional capacity was found to be 100% for Group A and C (≥7METS), 97.9% and 97.6% for Group B and D (<7METS) respectively.
Conclusion: We conclude that patients with ≥7 METS with normal GMPI had 100% NPV for FMI or NFMIs and omitting GMPI in these patients would save cost and avoid radiation exposure.
Keywords:
Authors
Maseeh uz Zaman
Department of Nuclear Cardiology, Karachi Institute of Heart Diseases (KIHD), Karachi, Pakistan
Nosheen Fatima
Department of Radiology, The Aga Khan University Hospital (AKUH), Karachi, Pakistan AND Department of Nuclear Medicine, Dr. Ziauddin Medical University, Karachi, Pakistan
Unaiza Zaman
Dow University of Health Sciences (DUHS), Karachi, Pakistan
Dad Baloch
Department of Nuclear Cardiology, Karachi Institute of Heart Diseases (KIHD), Karachi, Pakistan
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :