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Myocardial bridging prevents safe laparoscopy? A case report
D L Reiss1, M D Williams, C B Rodning
1Department of Surgery, University of South Alabama Medical Center, Mobile 36693, USA.
Insights
This case report highlights a patient with a myocardial bridge (a coronary artery anomaly) who experienced cardiac ischemia during laparoscopic surgery. The ischemia resolved upon desufflation, suggesting a link between intra-abdominal pressure and the cardiac condition.
Area of Science:
- Cardiology
- Gastroenterology
- Surgical Innovation
Background:
- Myocardial bridging is a congenital anomaly where a segment of a coronary artery runs through the heart muscle.
- Laparoscopic surgery involves insufflating the abdomen with gas, increasing intra-abdominal pressure.
- Cardiac events during laparoscopic procedures are rare but can be serious.
Observation:
- A patient with a myocardial bridge experienced cardiac ischemia during laparoscopic surgery, which resolved upon desufflation.
- The ischemia was possibly caused by increased intraperitoneal pressure affecting the myocardial bridge.
Findings:
- This case suggests myocardial bridging may be a contraindication for laparoscopic procedures due to potential hemodynamic compromise.
- The left anterior descending coronary artery bridge caused significant systolic stenosis.
Implications:
- Consider myocardial bridging as a potential risk factor for cardiac complications during laparoscopic surgery.
- Further research is needed to understand the relationship between myocardial bridging and pneumoperitoneum.
- Alternative surgical approaches like open cholecystectomy may be safer for patients with this anomaly.
Abstract:
A 49-year-old male presented with atypical chest pain. Complete cardiac evaluation was normal except for cardiac catheterization, which revealed a myocardial bridge across the LAD (left anterior descending coronary artery) that caused a 50% systolic stenosis. Abdominal ultrasound revealed cholelithiasis. The patient became asymptomatic and was discharged only to return with biliary pancreatitis, which resolved over 2 weeks and laparoscopic cholecystectomy was attempted. Upon establishment of a pneumoperitoneum, he began to suffer cardiac ischemia, which immediately resolved upon desufflation. The procedure was converted to an uneventful open cholecystectomy. He did well without any further problems. This is the first report of myocardial bridging, a well-known cardiac anomaly, possibly preventing safe laparoscopy. This was possibly due to transmitted intraperitoneal pressure effect on the pericardium pushing closed that myocardial bridge.
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