HIV-Infected Patients Referred for Cardiac Surgery and Indications for Surgery
In most cardiac centers, 0.2-0.4% of cardiac surgeries are performed on HIV-infected patients, a relatively rare but increasing situation [4, 5] (La Pitie experience). The routine use of antiretroviral therapies has led directly to dramatic declines in morbidity and mortality among HIV-1-infected patients with advanced immunodeficiency [6].
Mortality declined from 29.4 per 100 person-years in 1995 to 8.8 per 100 person-years in mid-1997. A number of patients infected with HIV-1 may develop cardiovascular diseases or complications and require cardiac surgery.During the last 10 years, the profile of HIV- infected patients referred for cardiac surgery in Western countries has changed. These patients are still young—41 years old for Tra- chiotis et al. [7], 36 years old for Mestres et al. [8], 44 for Abad et al. [4]—the majority are men (100% for Abad et al. [4]), frequently drug addicts or homosexual, but there is also an increasing proportion of women and older patients. At La Pitie, only 1 of 22 patients (4.5%) operated on during the 1990s was a woman; since the beginning of 2000, 5 of 27 patients (14.8%) operated on have been women.
The indications for cardiac surgery in HIV- infected patients have increased and changed for three reasons. First, the survival is greater and HIV-infected patients are exposed for longer periods to specific and classic cardiac lesions requiring surgery. Second, HAART itself is suspected to induce specific cardiac lesions, particularly coronary artery disease. Third, because the HIV infection is controlled with a long survival, we can consider complex therapeutic strategies in these patients such as heart transplantation and soon artificial hearts. Figure 1 reports the increasing number of coronary artery bypass grafting in HIV-infected patients during the last 6 years at La Pitie Institute. Because of the epidemiological profile of the HIV-infected population in Western countries in the HAART era, the major indications for cardiac surgery are coronary artery disease and cardiomyopathy.