The Annals of thoracic surgery · 2000
Left ventricular assist device bridge therapy for acute myocardial infarction.
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Park S J, Nguyen D Q, Bank A J, Ormaza S, Bolman R M
Аннотация
BACKGROUND: Patients with acute myocardial infarction (AMI) complicated by cardiogenic shock have a high mortality rate. Current treatment modalities remain suboptimal for these patients.
METHODS: From April 1995 to March 1998, 7 patients were identified as having AMI associated with cardiogenic shock. All received intraaortic balloon pump assistance, in addition to maximal inotropic support.
RESULTS: The mean preoperative cardiac index was 2.0+/-0.3 L/min/m2 and pulmonary capillary wedge pressure was 23+/-6 mm Hg. Three patients received thrombolytic therapy and 4 patients underwent percutaneous transluminal coronary angioplasty without success. Left ventricular assist devices (LVADs) were implanted as bridge therapy to heart transplantation. One patient died from recurrence of a ventricular septal defect during LVAD support. Six patients were transplanted successfully after mean LVAD support of 59+/-33 days. Five patients are alive and well at a mean follow-up of 898+/-447 days. One patient died 3 days after transplantation from acute allograft dysfunction.
CONCLUSIONS: Timely application of LVADs as bridge therapy to heart transplantation in these critically ill patients can be lifesaving, and should be investigated further.
METHODS: From April 1995 to March 1998, 7 patients were identified as having AMI associated with cardiogenic shock. All received intraaortic balloon pump assistance, in addition to maximal inotropic support.
RESULTS: The mean preoperative cardiac index was 2.0+/-0.3 L/min/m2 and pulmonary capillary wedge pressure was 23+/-6 mm Hg. Three patients received thrombolytic therapy and 4 patients underwent percutaneous transluminal coronary angioplasty without success. Left ventricular assist devices (LVADs) were implanted as bridge therapy to heart transplantation. One patient died from recurrence of a ventricular septal defect during LVAD support. Six patients were transplanted successfully after mean LVAD support of 59+/-33 days. Five patients are alive and well at a mean follow-up of 898+/-447 days. One patient died 3 days after transplantation from acute allograft dysfunction.
CONCLUSIONS: Timely application of LVADs as bridge therapy to heart transplantation in these critically ill patients can be lifesaving, and should be investigated further.