Résumé
We describe postoperative refractory ventricular tachycardia (VT) in a patient following aortic and mitral valve replacement. Following an uneventful separation from cardiopulmonary bypass with dobutamine, the patient developed recurrent VT, 4 hours into the postoperative period. The VT did not respond to standard doses of xylocard, magnesium and amiodarone. Electrolyte and acid base parameters were normal. Multiple cardioversions failed to revert back to a stable rhythm. Intra‑aortic balloon pumping was instituted and overdrive right ventricular pacing was unsuccessful. Following intravenous sotalol 80 mg, the VT came under control and reverted to a nodal rhythm, which required atrial pacing for the next 8 hours. Oral sotalol therapy was continued at 40 mg daily. The VT did not recur.
Sujets)
Adulte , Amiodarone , Défibrillation , Atrium du coeur/chirurgie , Valves cardiaques/chirurgie , Implantation de valve prothétique cardiaque/méthodes , Humains , Contrepulsion par ballon intra-aortique/méthodes , Mâle , Valve atrioventriculaire gauche/chirurgie , Sotalol/usage thérapeutique , Tachycardie ventriculaire/traitement médicamenteuxRésumé
We describe a very rare case of human brucella multivalvular endocarditis. Patient presented in a state of cardiogenic shock with low urine output and a history of breathlessness. Patient was diagnosed to have brucellosis 2 months back by blood cultures and agglutination tests and was receiving doxycycline and rifampicin therapy. Echocardiography showed severe aortic regurgitation, moderate mitral regurgitation, severe left ventricular dysfunction and a mobile vegetation attached to the aortic valve. Patient was scheduled for emergency surgery; while preparing for surgery hemodynamic monitoring, non‑invasive ventilation and inotropic supports were started. During surgery, the aortic valve was found perforated and the aortomitral continuity was disrupted. Aortic valve replacement and mitral valve repair were performed. Hemofiltration was used during cardiopulmonary bypass. Weaning from bypass was achieved with the help of inodilators, dual chamber pacing and intra‑aortic balloon pump.