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Ventricular fibrillation caused by electrocoagulation during laparoscopic surgery
W M C Klop1, P J F M Lohuis, R P Strating
1Department of General Surgery, De Heel ZMC, Postbus 210, Zaandam, The Netherlands. W.M.C. Klop@lumc.nl
Surgical Endoscopy
|April 23, 2002
Summary
Electrosurgery during laparoscopic procedures can cause ventricular fibrillation (VF) due to unintended electrical currents. Surgeons should understand electrosurgery principles and have cardioversion equipment available to ensure patient safety.
Area of Science:
- Cardiovascular Surgery
- Medical Devices
- Electrophysiology
Background:
- Laparoscopic bariatric surgery, such as gastric banding gastroplasty, is a common procedure for morbid obesity.
- Electrosurgery is frequently used in laparoscopic surgery for cutting and coagulation.
- Patient presented with morbid obesity (BMI 49.9 kg/m2) and underwent laparoscopic gastric banding gastroplasty.
Observation:
- Ventricular fibrillation (VF) occurred during the procedure while using a diathermic knife.
- The patient's heart rate normalized after defibrillation.
- The postoperative course was uneventful with no signs of heart failure.
Findings:
- The VF was likely caused by unintended electrical effects from electrosurgery.
- An electrical arc between tissue and the electrode in coagulation mode may generate low-frequency currents.
- These modified currents can potentially induce arrhythmias, including VF.
Implications:
- Using electrosurgery's coagulation mode for cutting in the cardiac region during laparoscopy may elevate arrhythmia risk.
- Thorough understanding of electrosurgery physics and equipment is crucial for surgical safety.
- Cardioversion equipment must be readily accessible in surgical units performing these procedures.