heart sound


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heart sound

Cardiology Any normal or abnormal sound heard by auscultation of the heart. See Fourth heart sound, Murmur, Third heart sound.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In recent work, the authors have also presented various kinds of hybrid methods tackling the signal segmentation tasks, including the heart sound signal segmentation tasks [15].
The companion web site is updated with a color atlas, ECG and heart sound tutorials, essentials of medical imaging, and about 50 OSCE practice questions and scenarios, along with numerous other images, illustrations, and review questions.
Doctors established she had an abnormal heart sound. She later developed jaundice.
ASDs are typically uncovered on exam via auscultation of heart sounds, which might reveal a split of the second heart sound (S2) and diastolic murmurs.
Lung sound signals (LSSs) exhibit nonperiodicity and low frequency; these signals also contain symptoms of many diseases and interfere with frequency components (50-2500 Hz) with heart sound signal (HSS) frequency in the range of 20-600 Hz [1].
The other clinical signs observed in most buffaloes included increased rectal temperature, tachycardia, decreased ruminal movement or ruminal atony, muffled heart sounds or asynchronous abnormal heart sound (splashing, friction rub or metallic sound), painful xiphoid region on palpation, congested mucous membrane and prolonged capillary refill time in most cases.
Foetal heart sound was auscultated for rate, rhythm and tone.
Conclusion: According to these values, it is concluded that the parameters of the heart sound used in this study do not make it possible to diagnose the sleep apnea from the heart sounds.
Thus the aim of the study is to present a new method to filter the heart sound interference from the tracheal sounds.
They detected the burst shaped heart sounds from signal envelope and estimated FHR via the time difference of heart sound occurrence [8-16].
Since the heart sound analysis mostly depends on the individual skills of the clinician, there is a growing demand for automatic heart sound interpretation methods and systems [1].
In 1940s clinical cardiology was limited to two heart sound, (1st and 2nd) two murmurs, systolic and diastolic, two investigations X-ray chest and ECG, two drugs Digoxin and Mercury diuretic injection.