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The Journal of Tehran University Heart Center، جلد ۱۰، شماره ۲، صفحات ۸۰-۸۴
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عنوان انگلیسی Changes in Heart Rate Variability Parameters after Elective Percutaneous Coronary Intervention
چکیده انگلیسی مقاله Background: Patients with chronic stable angina often have a state of sympathetic hyperactivity. It is considered associated with myocardial ischemia and disappears after ischemia elimination. The aim of this study was to investigate the changes in heart rate variability parameters, a noninvasive technique for the evaluation of the autonomic nervous system activity, after successful revascularization in these patients to evaluate this theory. Methods: The patients were enrolled among those who underwent successful percutaneous coronary intervention. Short- term heart rate variability analyses of all the patients were obtained, and time-domain indices (standard deviation of normal- to-normal intervals [SDNN], standard deviation of differences of successive R-R intervals [SDSD], root-mean square differences of successive R-R intervals [rMSSD], percentage of R-R intervals differing > 10 ms from the preceding one [ PNN 10 percentage of R-R intervals differing > 20 ms from the preceding one [PNN20 ], percentage of R-R intervals differing > 30 ms from the preceding one [ PNN 30] percentage of R-R intervals differing > 40 ms from the preceding one [ PNN 40], percentage of R-R intervals differing > 50 ms from the preceding one [PNN 50 percentage of R-R intervals differing > 60 ms from the preceding one [ PNN 60 percentage of R-R intervals differing > 70 ms from the preceding one [ PNN 70]) were analyzed. All the measurements were made before and after percutaneous coronary intervention. Results: This study included 64 patients, comprising 27 men and 37 women at a mean age of 56.8 ± 9.1 years. There was a significant difference only between pre- and post-revascularization SDNN (27.5 ± 19.72 vs. 41 ± 41.4; p value = 0.013). The other parameters showed no significant differences after successful coronary intervention. Conclusion: Our data indicate that the increase in SDNN in patients with stable angina pectoris undergoing percutaneous coronary intervention seems to be prominent.
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نویسندگان مقاله سعید ابروتن | saeed abrootan
department of cardiology, imam khomeini hospital, ahvaz jundishapur university of medical sciences, ahvaz, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی جندی شاپور اهواز (Ahvaz jundishapur university of medical sciences)

سعید یزدانخواه | saeed yazdankhah
department of cardiology, imam khomeini hospital, ahvaz jundishapur university of medical sciences, ahvaz, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی جندی شاپور اهواز (Ahvaz jundishapur university of medical sciences)

بابک پیامی | babak payami
department of cardiology, imam khomeini hospital, ahvaz jundishapur university of medical sciences, ahvaz, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی جندی شاپور اهواز (Ahvaz jundishapur university of medical sciences)

محمد الستی | mohammad alasti
department of cardiology, bahman general hospital, tehran, iran.
نشانی اینترنتی http://jthc.tums.ac.ir/index.php/jthc/article/view/371
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