title: Two unusual cases of gas embolism following urethral surgery under laser.
mesh_terms: D000328:Adult; D002245:Carbon Dioxide / Q000009:adverse effects / Q000627:therapeutic use; D004618:Embolism, Air / Q000209:etiology* / Q000628:therapy; D006323:Heart Arrest / Q000209:etiology; D006801:Humans; D006931:Hyperbaric Oxygenation; D053685:Laser Therapy; D007834:Lasers / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D014521:Urethra / Q000601:surgery*; D014525:Urethral Stricture / Q000601:surgery
chemical_list: D002245:Carbon Dioxide