Paradoxical carbon dioxide embolism during endoscopic thyroidectomy confirmed by transesophageal echocardiography
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Carbon dioxide (CO2) embolism is a rare but potentially life-threatening complication of laparoscopic procedures. Although endoscopic thyroidectomy using CO2 gas insufflation appears to be superior to conventional open thyroidectomy in terms of cosmetic results, it may cause venous or fatal paradoxical CO2 embolism. We report a case of paradoxical CO2 embolism during CO2 gas insufflation in an endoscopic thyroidectomy that was confirmed by transesophageal echocardiography (TEE). Paradoxical embolization via transpulmonary right-to-left shunting of venous CO2 gas emboli was revealed by TEE examination. The patient recovered without complications. In conclusion, although endoscopic thyroidectomy is a promising approach that is gaining popularity and offers excellent cosmetic results compared with conventional open thyroidectomy, this case report emphasizes the importance of anticipating and being vigilant for potential CO2 embolism.
KeywordsEmbolism Paradoxical Endoscopy Pulmonary embolism Thyroidectomy
Conflict of interest
The authors have no conflict of interest.