Moll van Charante Eric P, de Jongh Tjeerd O H
Academisch Medisch Centrum, afd. Huisartsgeneeskunde, Amsterdam, The Netherlands.
Ned Tijdschr Geneeskd. 2011;155:A2657.
Normal bowel sounds vary considerably in intensity, pitch and frequency. Due to the wide range of physiological variation, the clinical significance of abdominal bowel sounds is limited. There is no clear evidence that very high-pitched bowel sounds have clinical pertinence. Small bowel obstruction is more commonly associated with hyperactive bowel sounds than with substantially diminished or absent bowel sounds. In 4-20% of young adults, systolic bruits are heard in the epigastric region that are not associated with abnormalities. There is no evidence that abdominal aortic aneurysms are associated with abdominal bruits. An abdominal bruit is indicative of renal artery stenosis when blood pressure control remains unsatisfactory, in particular when the bruit is also heard during diastole.
正常肠鸣音在强度、音调及频率上差异很大。由于生理变异范围广泛，腹部肠鸣音的临床意义有限。尚无明确证据表明极高音调的肠鸣音具有临床相关性。小肠梗阻更常与肠鸣音亢进相关，而非肠鸣音明显减弱或消失。在4%至20%的年轻成人中，可在上腹部听到收缩期杂音，且与异常情况无关。没有证据表明腹主动脉瘤与腹部杂音有关。当血压控制仍不理想时，尤其是舒张期也能听到杂音时，腹部杂音提示肾动脉狭窄。
