1992
DOI: 10.3109/14017439209099063
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Abstract: Nine patients with obstruction of coronary artery blood flow caused by myocardial bridging underwent surgery after failure of medical treatment. The diagnoses were made angiographically at rest or during beta-stimulation. Impaired blood flow was found only in the left anterior descending artery in seven patients and additionally in the diagonal branch in two. The operations, performed with cardiopulmonary bypass consisted of complete dissection of the overlying myocardium. All patients survived the operation. … Show more

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Cited by 74 publications
(49 citation statements)
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“…79 Myotomy produces a complete relief of coronary compression and improves peripheral blood perfusion, leading to resolution of ischemic reaction. 80 The mid-or long-term outcome of symptomatic patients with surgical relief from MB compression is excellent. 81 Myotomy is also effective for symptomatic patients with a long MB who are unsuitable for stent placement in the bridged segment.…”
Section: Surgical Treatmentmentioning
confidence: 99%
See 1 more Smart Citation
“…79 Myotomy produces a complete relief of coronary compression and improves peripheral blood perfusion, leading to resolution of ischemic reaction. 80 The mid-or long-term outcome of symptomatic patients with surgical relief from MB compression is excellent. 81 Myotomy is also effective for symptomatic patients with a long MB who are unsuitable for stent placement in the bridged segment.…”
Section: Surgical Treatmentmentioning
confidence: 99%
“…80,81, 86 When the LAD is situated deep within the anterior ventricular groove due to a thick MB, the right ventricle may be accidentally perforated during myotomy. 80 For cases of a long and/or thick MB, the coronary artery may be injured during decompressive myotomy, 86 because it is not visible through the epicardial adipose tissue and is thin-walled under the bridged segment. 5 In addition, there is a possibility of postoperative scar formation around the coronary artery, which causes recurrent compression of the coronary artery.…”
Section: Surgical Treatmentmentioning
confidence: 99%
“…In subjects with angiographically normal coronary arteries, the use of provocation tests may enhance systolic myocardial compression and thereby reveal myocardial bridges in Յ40% of cases. 26,30 A high prevalence has also been reported in heart transplant recipients 23 and in patients with hypertrophic obstructive cardiomyopathy (HOCM). 31 In the latter, more rigorous contraction may unmask otherwise undetectable bridges.…”
Section: Prevalencementioning
confidence: 99%
“…[22][23][24] Theoretically, concomitant occurrence of hypertrophic cardiomyopathy and muscular bridging might be more common in a country like Japan than the sparse reports might suggest, and the benign character of typical AHC does not justify routine catheterization in every case. One previous report described a case with coexistence of hypertrophic subaortic stenosis and a muscle bridge of a septal perforator,25) while another report describes the coexistence of AHC and a muscular bridge.…”
Section: Discussionmentioning
confidence: 99%