The prognosis for patients with acute type B aortic dissection is bleak and determined primarily by dissection-related and patient-specific risk factors, which do not appear to be readily modifiable.

We studied the effects of cytomegalovirus (CMV) infection on 301 cardiac transplant recipients who were treated during the cyclosporine era of immunosuppression (1980 to the present). These patients received varying combinations of cyclosporine, azathioprine, prednisone, rabbit antithymocyte globulin, and OKT3 as their immunosuppressive therapy. Two hundred ten patients were free of CMV infection (non-CMV group). During the same period CMV infection developed in 91 patients, as manifested by a fourfold IgG serologic titer rise, demonstration of CMV inclusion bodies in tissue, or positive cultures for the virus (CMV group). The rate of graft rejection was significantly higher in the CMV group. Graft atherosclerosis was significantly more severe in the CMV group as judged by angiographic criteria or by pathologic study. Patient survival rates were significantly lower in the CMV group. Death caused by graft atherosclerosis was significantly more common among patients in the CMV group. Finally, the graft loss rate (from either death or retransplantation for atherosclerosis) was significantly greater in the CMV group. These data demonstrate that CMV infection in cardiac transplant recipients is associated with more frequent rejection, graft atherosclerosis, and death.

No abstract

No abstract

Sirolimus was introduced in de novo immunosuppression at Stanford University in view of its favorable effects on reduced rejection and cardiac allograft vasculopathy. After an apparent increase in the incidence of post-surgical wound complications as well as symptomatic pleural and pericardial effusions, we reverted to a mycophenolate mofetil (MMF)-based regimen. This retrospective study compared the outcome in heart transplant recipients on sirolimus (48 patients) with those on MMF (46 patients) in de novo immunosuppressive regimen. The incidence of any post-surgical wound complication (52% vs. 28%, p = 0.019) and deep surgical wound complication (35% vs. 13%, p = 0.012) was significantly higher in patients on sirolimus than on MMF. More patients on sirolimus also had symptomatic pleural (p = 0.035) and large pericardial effusions (p = 0.033) requiring intervention. Logistic regression analysis showed sirolimus (p = 0.027) and longer cardiac bypass time (OR = 1.011; p = 0.048) as risk factors for any wound complication. Sirolimus in de novo immunosuppression after cardiac transplantation was associated with a significant increase in the incidence of post-surgical wound healing complications as well as symptomatic pleural and pericardial effusions.

No abstract

No abstract

No abstract