Declining HCV seroprevalence in pregnant women with HIV.

We assessed recent trends in hepatitis C virus (HCV) prevalence in pregnant women with HIV using data from a large national study. Based on 1240 pregnancies, we observed a 3.4-fold decline in HCV seroprevalence in pregnant women with HIV between 2001 (29.3%) and 2008 (8.6%). This decline was the net result of two components: a progressively declining HCV seroprevalence in non-African women (from 35.7% in 2001 to 16.7% in 2008), sustained by a parallel reduction in history of injecting drug use (IDU) in this population, and a significantly growing presence (from 21.2% in 2001 to 48.6% in 2008) of women of African origin, at very low risk of being HCV-infected [average HCV prevalence 1%, adjusted odds ratio (aOR) for HCV 0.09, 95% CI 0.03-0.29]. Previous IDU was the stronger determinant of HCV co-infection in pregnant women with HIV (aOR 30.9, 95% CI 18.8-51.1). The observed trend is expected to translate into a reduced number of cases of vertical HCV transmission.

The International Prognostic Index can be used as a guide to treatment decisions regarding patients with human immunodeficiency virus-related systemic non-Hodgkin lymphoma.

BACKGROUND: The International Prognostic Index (IPI) effectively separates aggressive lymphomas into four groups with significantly different responses to therapy and survival. The authors have applied the IPI to evaluate a series of patients with human immunodeficiency virus (HIV) related lymphoma, a disease for which treatment strategies are still controversial and prognostic indicators are therefore particularly important. METHODS: Sixty-nine consecutive evaluable patients with HIV-related systemic non-Hodgkin lymphoma (NHL) diagnosed at a single Institution during a 10-year period were analyzed. Primary cerebral lymphoma was not considered. Forty-nine patients (71%) received aggressive combination chemotherapy (CT), 45 of whom were treated with the same program: cyclophosphamide, doxorubicin, etoposide, cytarabine, bleomycin, vincristine, and methotrexate with lecuovorin and prednisone (ProMACE-CytaBOM). Univariate and multivariate methods were used for statistical analysis. End points were response to treatment in patients receiving aggressive CT and survival of treated patients and all patients. RESULTS: According to age-adjusted IPI, 5 patients (7%) belonged to the low risk group, 12 (17%) to the low-intermediate risk group, 16 (23%) to the high-intermediate risk group, and 36 (52%) to the high risk group. Among the four groups with increasing IPI scores, the mean CD4 cell count at NHL diagnosis was 313, 230, 151, and 72/microL, respectively (P = 0.0085). The complete response (CR) rates were 100%, 88%, 50%, and 32% (P = 0. 0001) and the median survival of all patients was >60, 17, 10.9, and 6.8 months (P = 0.0002) for patients with low, low-intermediate, high-intermediate, and high risk IPI scores, respectively. In multivariate analysis, among patients receiving aggressive CT, high risk IPI (P = 0.013) and systemic symptoms (P = 0.014) were the only parameters related to CR, and high risk IPI (P = 0.016) and achievement of CR (P < 0.001) were the only parameters related to survival. When all patients were considered, high risk IPI had significant prognostic value for overall survival (P = 0.01), as did age (P = 0.019) and achievement of CR (P < 0.001). CONCLUSIONS: IPI was a reliable prognostic indicator in an unselected series of patients with HIV-related systemic NHL. The outcomes of patients without high risk IPI treated with aggressive CT were similar to those expected for HIV negative patients with lymphoma. However more than half of patients with HIV-related NHL had IPI high risk disease, and their outcomes were poor even after aggressive CT. The degree of immunodeficiency was related to increasing IPI score, suggesting that immunodeficiency may be an important factor contributing to the aggressive clinical presentation of lymphoma.

Prognostic factors correlated with survival in AIDS patients.

The authors present the AIDS cases (CDC '93) observed in Brescia from 1983 to 1994. They observed 1189 subjects (M 84%, F 16%) with a mean age of 32.7 years (intra-venous drug users 75.1%, heterosexuals 14%, homosexuals 9.6%). The mean survival observed was 56.7 weeks from the diagnosis of AIDS (mortality per year 78%). The most frequent AIDS-defining events were Visceral Candidiasis, P. carinii Pneumonia (PCP) and Neurotoxoplasmosis, while the longest and shortest mean survival was for Kaposi's Sarcoma (89 weeks) and Wasting Syndrome (8.4). The mean value of CD4+ lymphocyte counts on AIDS diagnosis was 72.6/microl (1166 cases) and the highest and lowest were in non-Hodgkin's Lymphoma (NHL; 147.6/microl) and Cryptosporidiosis (18.8/microl). Antiretroviral therapy had been given for at least a month in 41.4% subjects (mean treatment duration of 74.8 weeks). The Cox model has demonstrated the favourable effect on survival of high CD4+ lymphocyte counts on diagnosis, antiretroviral therapy, the diagnosis of Tuberculosis (TBC) and PCP as initial markers and the diagnosis of TBC, PCP or Cytomegalovirus infection (CMV) during the entire clinical evolution. Moreover, the unfavourable effect of high age, diagnosis of Progressive Multifocal Leucoencephalopathy (PML), Wasting Syndrome and NHL as initial markers and diagnosis of PML or NHL in any moment of the disease has been demonstrated.

Randomized trial of trimethoprim-sulfamethoxazole versus pyrimethamine-sulfadiazine for therapy of toxoplasmic encephalitis in patients with AIDS. Italian Collaborative Study Group.

The aim of the present pilot study was to compare the efficacy and safety of trimethoprim (TMP) and sulfamethoxazole (SMX) with those of the standard therapy pyrimethamine (P)-sulfadiazine (S) for the treatment of toxoplasmic encephalitis in patients with AIDS. This was a pilot, multicenter, randomized, and prospective study. Patients were randomly assigned to receive TMP (10 mg/kg of body weight/day) and SMX (50 mg/kg/day) or P (50 mg daily) and S (60 mg/kg/day) as acute therapy (for 4 weeks) and then as maintenance therapy for 3 months at half of the original dosage. Seventy-seven patients were enrolled and randomized to the study: 40 patients were treated with TMP-SMX and 37 were treated with P-S. There was no statistically significant difference in clinical efficacy during acute therapy. In contrast, patients randomized to TMP-SMX appeared more likely to achieve a complete radiologic response after acute therapy. Adverse reactions were significantly more frequent in patients treated with P-S, and skin rash was the most common adverse event noted in these patients. In conclusion, the results of the study suggest that TMP-SMX appears to be a valuable alternative to P-S, in particular in patients with opportunistic bacterial infections.

Effects of recombinant granulocyte colony-stimulating factor (G-CSF) in patients treated with ProMACE-CytaBOM for HIV-related non-Hodgkin's lymphoma (NHL).

BACKGROUND AND OBJECTIVE: The use of hematopoietic growth factors in association with chemotherapy in human immunodeficiency virus (HIV)-related non-Hodgkin's lymphoma (NHL) has been recommended, but few studies have evaluated its cost-effectiveness. DESIGN AND METHODS: The effects of recombinant granulocyte colony-stimulating factor (G-CSF) were analyzed in 33 consecutive patients with HIV-related NHL treated at a single institution with the same chemotherapy program, ProMACE-CytaBOM, with G-CSF, in 21 cases diagnosed after December 31, 1991, or without G-CSF, in 12 cases diagnosed earlier. Pearson's chi-square analysis and the two-sided Student's t-test were used for statistical comparisons. The method of Kaplan-Meyer and the log-rank-test were used for survival analyses. RESULTS: G-CSF support significantly reduced the frequency of day-1 drug dose reductions (p < 0.001) and of chemotherapy delays (p < 0.001), and improved the actual delivered doses of adriamycin, cyclophosphamide and etoposide (p < 0.02). In patients with a CD4+ count < 0.01 x 10(9)/L, chemotherapy could be given at full doses in 90% of cycles with G-CSF compared to only 20% without it. G-CSF affected neither the frequency and duration of fever and hospitalization nor the complete remission and survival rates after stratification according to the CD4+ count. INTERPRETATION AND CONCLUSIONS: G-CSF support significantly improved dose-intensity in patients with HIV-related NHL treated with aggressive chemotherapy, particularly in the subgroup with a CD4+ count < 0.1 x 10(9)/L, but it did not improve their clinical outcome.

Changing patterns of HIV transmission and better targeting for intervention strategies.

We considered the HIV population of our area, comparing demographic characteristics between 2 consecutive 6-year periods to assess the current patterns of HIV transmission. All HIV-positive patients referred to our hospital from January 1985 to December 1996 were included in the study and were classified into 2 periods: A (January 1985 to December 1990) and B (anuary 1991 to December 1996). The variables analysed were: sex, age at first visit, HIV risk category. A total of 4284 HIV subjects were observed, 2306 in period A vs 1978 in period B (P=ns). Males were 76.3% vs 75.2% (P=ns). Mean age for males was 27.4 vs 32.4 years (P < 0.001) and for females 25.4 vs 30.1 years (P < 0.001). Intravenous drug users (IVDUs) were 88.4% vs 65.4% (P < 0.001), 'heterosexuals' 14.3% vs 24.8% (P < 0.001), 'men who have sex with men' 2.4% vs 4.8% (P < 0.001). Mean age by the main risk groups was: IVDUs 25.9 vs 29.7 years (P < 0.001); heterosexuals 30.4 vs 36 years (P=0.007); 'men who have sex with men' 35 vs 35 years. In conclusion, our study confirms the emerging role of heterosexuals in the current HIV epidemic. People older than teenagers seem to have misperceived their own risk of HIV infection, given the increase in the mean age occurred in the most recent years. This trend suggests the need for prevention strategies focusing more on heterosexual transmission and older people.

Acute Histoplasmosis in Spelunkers Returning from Mato Grosso, Peru.

Background: Histoplasmosis is a fungal disease with a worldwide distribution. Travelers returning from endemic areas with a history of exposure to fungal spores have a high risk of infection. Methods: We report four cases of acute pulmonary disease in Italian spelunkers returning from Mato Grosso, Peru. Results: Symptoms and radiologic findings were consistent with acute pulmonary illness. Laboratory data supported the hypothesis of histoplasmosis. Conclusions: Histoplasmosis should be considered in the differential diagnosis in travelers returning from endemic areas, who report a risk of exposure, and present with respiratory illness. In this setting, seroconversion may be considered diagnostic of pulmonary histoplasmosis.

Rhodococcus equi infection in HIV-infected patients.

OBJECTIVE: To report clinical and microbiological features and response to treatment in HIV patients with Rhodococcus equi infection. DESIGN: Retrospective study. SETTING: Inpatients admitted to two Infectious Diseases Departments in a community-based hospital. PATIENTS: A total of 12 HIV-positive patients with R. equi infection. MAIN OUTCOME MEASURES: Clinical status, radiological finding, microbiological, haematochemical and immunological tests, and response to treatment. RESULTS: Twelve patients (11 men, six injecting drug users) were diagnosed with R. equi infection. Fever and cough were the principal clinical signs on presentation. Mean CD4+ count at the time of diagnosis was 47.67 x 10(6)/l (SD, 49.2 x 10(6)/l). In 58.3% of the cases the diagnosis of R. equi infection followed the appearance of an AIDS-defining illness. The most frequent radiological findings were cavitary lesions (41.7%) and lung consolidation (33.3%). In 83% of cases, R. equi was isolated from blood and in 33.3% cases from sputum. Test of chemosensitivity showed sensitivity to vancomycin (100%), teicoplanin (100%), ceftriaxone (80%), erythromycin (71%) and ciprofloxacin (66%). Clinical response alone with the disappearance of the presenting signs was observed in nine of the 12 cases (75%); complete response was observed in two cases. Seven patients died with a mortality rate of 58.3% and a mean survival of 5.75 months (SD, 6.48 x 10(6)/l). CONCLUSIONS: R. equi should be considered in the differential diagnosis of pulmonary of disseminated infections in patients with HIV infection. Blood culture may be the most sensitive means of diagnosis. Other studies are needed to determine the most effective choice and duration of antibiotic therapy.