End-stage left ventricular dysfunction associated with extreme clinical right ventricular failure: contraindication for heart transplant?

Ambulatory advanced heart failure patients: timing of mechanical circulatory support - delaying the inevitable?

PURPOSE OF REVIEW

Current indications for continuous-flow left ventricular assist device (cfLVAD) implantation is for patients in cardiogenic shock or inotrope-dependent advanced heart failure. Risk stratification of noninotrope dependent ambulatory advanced heart failure patients is a subject of registries designed to help shared-decision making by clinicians and patients regarding the optimal timing of mechanical circulatory support (MCS).

RECENT FINDINGS

The Registry Evaluation of Vital Information for VADs in Ambulatory Life enrolled ambulatory noninotrope dependent advanced systolic heart failure patients who had 25% annualized risk of death, MCS, or heart transplantation (HT). Freedom from composite clinical outcome at 1-year follow-up was 23.5% for the entire cohort. Seattle Heart Failure Model Score and Natriuretic pepides were predictors with modest discriminatory power. Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) profile 4 patients had the highest risk (3.7-fold) of death, MCS or HT compared to INTERMACS profile 7.

SUMMARY

We propose individualized risk stratification for noninotrope dependent ambulatory advanced heart failure patients and include serial changes in end-organ function, nutritional parameters, frailty assessment, echocardiographic and hemodynamic data. The clinical journey of a patient with advanced heart failure should be tracked and discussed at each clinic visit for shared decision-making regarding timing of cfLVAD.

Heart transplantation in patients with extreme right ventricular failure

OBJECTIVE

Donor shortage and improved medical treatment of heart failure increase the prevalence of patients with extreme right ventricular failure and ascites to heart transplantation. The clinical outcome of heart transplantation in these patients has rarely been reported. Here, we sought to evaluate the clinical outcome of heart transplantation in patients with extreme right ventricular failure and refractory ascites.

METHODS

Data were collected by retrospective chart review.

RESULTS

Between 1993 and 2005, 12 patients with extreme right ventricular failure and refractory ascites underwent orthotopic heart transplantation at the authors' hospital. The causes of heart failure were congenital heart disease in four patients, dilated cardiomyopathy in two patients, rheumatic heart disease in two patients, coronary artery disease in two patients, and restrictive cardiomyopathy and transplant coronary artery disease each in one patient. Eight of 12 patients had previous cardiac operation. The findings of preoperative abdominal sonography were massive ascites in all patients, congestive liver in 11 patients, and probably cardiac cirrhosis in 1 patient. One patient underwent combined heart and kidney transplantations. There were six in-hospital deaths: bleeding in three patients and multiple organ failure in three patients. Major postoperative complications occurred in 10 patients: renal failure requiring dialysis in 9, bleeding requiring reoperation in 8 patients. Patients with previous cardiac operation had a higher mortality rate (5/7 vs 1/5).

CONCLUSIONS

Heart transplantation in patients with extreme right ventricular failure and refractory ascites was associated with high mortality and morbidity. The presence of previous cardiac operation implied even poor prognosis.