کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5986133 1178839 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
P-wave complexity in normal subjects and computer models
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی کاردیولوژی و پزشکی قلب و عروق
پیش نمایش صفحه اول مقاله
P-wave complexity in normal subjects and computer models
چکیده انگلیسی


- P waves have complex shapes with 4.1 peaks on average.
- The shape of the P wave cannot be recovered by filtering.
- P waves have considerable signal content above 40 Hz.

BackgroundP waves reported in electrocardiology literature uniformly appear smooth. Computer simulation and signal analysis studies have shown much more complex shapes.ObjectiveWe systematically investigated P-wave complexity in normal volunteers using high-fidelity electrocardiographic techniques without filtering.MethodsWe recorded 5-min multichannel ECGs in 16 healthy volunteers. Noise and interference were reduced by averaging over 300 beats per recording. In addition, normal P waves were simulated with a realistic model of the human atria.ResultsMeasured P waves had an average of 4.1 peaks (range 1-10) that were reproducible between recordings. Simulated P waves demonstrated similar complexity, which was related to structural discontinuities in the computer model of the atria.ConclusionThe true shape of the P wave is very irregular and is best seen in ECGs averaged over many beats.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electrocardiology - Volume 49, Issue 4, July–August 2016, Pages 545-553
نویسندگان
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