THE RELATIONSHIP BETWEEN CYTOMEGALOVIRUS RETRIEVED BY BRONCHOALVEOLARLAVAGE AND MORTALITY IN PATIENTS WITH HIV

Study objective: To evaluate mortality over 6 months of patients with HIV with cytomegalovirus (CMV) cultured from bronchoalveolar lavage (B AL) compared with those without CR IV and to assess the significance o f CMV cytologic study, CD4+ counts, and coexistent Pneumocystis carini i pneumonia. Design: Retrospective evaluation of HIV-infected patients undergoing bronchoscopy with BAL. The 40 most recent HIV-positive pat ients undergoing bronchoscopy with BAL were included for each of three categories: CMV by cytologic study; CMV by culture only; and CMV abse nt. Patients for whom survival status at 6 months was unknown were exc luded from analysis. Setting: University hospital, tertiary care cente r. Patients: Group 1 consisted of 36 patients with positive CMV cultur e and cytologic study and group 2 consisted of 38 patients with only a positive culture for CMV. Group 3 consisted of 40 patients with no ev idence of CMV by BAL. Results: On comparison of the groups, there was no difference in S-week survival (from date of bronchoscopy). There wa s a statistically significant increase in mortality in group 1 patient s compared with group 3 patients at both 3 and 6 months. Between group s 2 and 3, there was a difference in mortality that approached but did not reach significance at 3 months but did at 6 months. The mortality in group 1 at 3 months=28%, at 6 months=47%, whereas mortality in gro up 2 at 3 months=26% and at 6 months=45%. Group 3 had a 3-month mortal ity of 10% and a 6-month mortality of 15%. While those patients with p ositive CMV cytologic study had lower mean CD4+ counts, within the gro up, CD4+ counts were no different between the 3-month survivors and no nsurvivors (survivors, CD4/mm(3) median=38 [O to 141]; and nonsurvivor s, CD4/mm(3) median=16 [3 to 224]). Coninfection with P carinii did no t increase mortality at 3 months. Conclusions: The CMV retrieved by BA L in HIV-infected patients was associated with significantly greater 3 - and 6-month mortality. The CMV cytologic study did not predict a hig her mortality and the difference in mortality between patients with an d without CMV in BAL fluid was not directly attributed to lower CD4+ c ounts or P carinii coinfection.