Spectral analysis of bowel sounds in intestinal obstruction using an electronic stethoscope

Ching, Siok Siong; Tan, Yih Kai

doi:10.3748/wjg.v18.i33.4585

Cited by 43 publications

(50 citation statements)

References 19 publications

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“…sounds in intestinal obstruction using an electronic stethoscope. They found that bowel sound characteristics were not different among patients with acute, subacute or no intestinal obstruction using the commonly compared parameters including sound duration, sound-to-sound interval, and dominant and peak frequencies (12). In another study, the authors concluded that auscultation of bowel sounds is not a useful clinical practice when differentiating patients with normal versus pat hologic bowel sounds (13).…”

Section: Discussionmentioning

confidence: 98%

Abdominal palpation and percussion maneuvers do not affect bowel sounds

Çalış¹,

Kaya²,

Mehmetaj³

et al. 2019

Turk J Surg

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Objective: Medical textbooks suggest that the frequency of bowel sounds may be altered by performing auscultation after palpation or percussion. We hypothesize that the frequency of bowel sounds is not affected by the order of abdominal examination. Material and Methods: Both healthy volunteers (n= 80) and patients (n= 100) were enrolled in this crossover randomized study. Two different examination orders, one as inspection, palpation, percussion, auscultation (IPPA) and the other order as inspection, auscultation, palpation, percussion (IAPP) were used by two observers, one of which was blinded to the order of the physical examination and only performed auscultation. Bowel motilities of 40 participants were analyzed with duplex Doppler USG by a radiologist. The effects of changing the order of abdominal examination and palpationpercussion maneuvers on the frequency of bowel sounds were evaluated. Results: Gender distribution was similar between the healthy patients and controls, and mean age of the entire study population was 47 (18-60) years. Differences between the mean bowel sound frequencies for abdominal examinations in order IPPA-IAPP versus IAPP-IPPA were evaluated for both healthy subjects and the patients. There were no differences between the first and second listening, nor were there differences between examinations performed in either order. Duplex Doppler Ultrasonographic (USG) assessments were performed on 20 healthy subjects and 20 patients before and after palpation and percussion; there were no statistically significant differences between the two listenings (p= 0.694). Conclusion: According to both abdominal examinations and Doppler USG, the order of auscultation, whether performed before or after palpation or percussion, did not change the frequency of bowel sounds in this subject population.

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Section: Discussionmentioning

confidence: 98%

Abdominal palpation and percussion maneuvers do not affect bowel sounds

Çalış¹,

Kaya²,

Mehmetaj³

et al. 2019

Turk J Surg

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“…Bowel sounds are also important, for their clinical correlations with intestinal function. 173 Wang et al 174 have developed a flexible wearable wireless device for long-term and real-time monitoring of bowel sounds, which transmits the sound signal to the mobile handset through Bluetooth for waveform display as shown in Fig. 9c.…”

Section: Strain and Pressurementioning

confidence: 99%

Flexible inorganic bioelectronics

Chen¹,

et al. 2020

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Flexible inorganic bioelectronics represent a newly emerging and rapid developing research area. With its great power in enhancing the acquisition, management and utilization of health information, it is expected that these flexible and stretchable devices could underlie the new solutions to human health problems. Recent advances in this area including materials, devices, integrated systems and their biomedical applications indicate that through conformal and seamless contact with human body, the measurement becomes continuous and convenient with yields of higher quality data. This review covers recent progresses in flexible inorganic bio-electronics for human physiological parameters' monitoring in a wearable and continuous way. Strategies including materials, structures and device design are introduced with highlights toward the ability to solve remaining challenges in the measurement process. Advances in measuring bioelectrical signals, i.e., the electrophysiological signals (including EEG, ECoG, ECG, and EMG), biophysical signals (including body temperature, strain, pressure, and acoustic signals) and biochemical signals (including sweat, glucose, and interstitial fluid) have been summarized. In the end, given the application property of this topic, the future research directions are outlooked.

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“…Judgements regarding the presence of "normal," "decreased," or "asthenic" intestinal murmurs is subjective, and definitive criteria have yet to be established for the evaluation of intestinal murmurs by auscultation. Furthermore, studies have reported a low rate of agreement between observers [60,61] (level 4), [62][63][64] (level 3).…”

Section: Cq38 Does Abdominal Examination Using a Stethoscope Have Utimentioning

confidence: 99%