11/1438. Persistently negative hiv-1 antibody enzyme immunoassay screening results for patients with hiv-1 infection and AIDS: serologic, clinical, and virologic results. Seronegative AIDS Clinical Study Group.OBJECTIVE: To describe persons with HIV infection and AIDS but with persistently negative HIV antibody enzyme immunoassay (EIA) results. DESIGN: Surveillance for persons meeting a case definition for hiv-1-seronegative AIDS. SETTING: united states and canada. patients: A total of eight patients with seronegative AIDS identified from July 1995 through September 1997. MAIN OUTCOME MEASURES: Clinical history of HIV disease, history of HIV test results, and CD4 cell counts from medical record review; results of testing with a panel of EIA for antibodies to hiv-1, and hiv-1 p24 antigen; and viral subtype. RESULTS: Negative HIV EIA results occurred at CD4 cell counts of 0-230 x 10(6)/l, and at HIV rna concentrations of 105,000-7,943,000 copies/ml. Using a panel of HIV EIA on sera from three patients, none of the HIV EIA detected infection with hiv-1, and signal-to-cut-off ratios were < or = 0.8 or all test kits evaluated. Sera from five patients showed weak reactivity in some HIV EIA, but were non-reactive in other HIV EIA. All patients were infected with hiv-1 subtype B. CONCLUSIONS: Rarely, results of EIA tests for antibodies to hiv-1 may be persistently negative in some hiv-1 subtype B-infected persons with AIDS. physicians treating patients with illnesses or CD4 cell counts suggestive of HIV infection, but for whom results of HIV EIA are negative, should consider p24 antigen, nucleic acid amplification, or viral culture testing to document the presence of HIV.- - - - - - - - - - ranking = 1keywords = infection (Clic here for more details about this article) |
12/1438. methadone withdrawal when starting an antiretroviral regimen including nevirapine.Antiretrovirals from three drug classes, nucleoside analogs, nonnucleoside analogs, and protease inhibitors, can be combined to achieve viral suppression. The nonnucleoside analog nevirapine is an inducer of cytochrome P450 3A4 liver metabolism and has interactions with protease inhibitors and oral contraceptives. methadone has two roles in human immunodeficiency viral infection: pain management and treatment of opioid abuse. A drug-drug interaction may result in decreased methadone blood levels when administered with nevirapine. A patient experienced methadone withdrawal symptoms when combining these agents.- - - - - - - - - - ranking = 0.14285714285714keywords = infection (Clic here for more details about this article) |
13/1438. Highly active antiretroviral therapy used to treat concurrent hepatitis B and human immunodeficiency virus infections.We report a case of simultaneous infection with hepatitis b virus (HBV) and human immunodeficiency virus type 1 (hiv-1) in a 26-year-old Japanese homosexual man. He was admitted to our hospital for acute hepatitis caused by HBV. At that time, HIV-1antibody (Ab) was not detected in his serum. After 6 months, he was readmitted to our hospital for further examination of his liver because of confined liver enzyme abnormalities. Anti-HIV- Ab was detected in his serum by both enzyme immunosorbent assay (EIA) and particle agglutination (PA). His serum hiv-1 rna level was 50 x 10(4) copies/ml and serum levels of HBV dna polymerase (dna-P) and HBV dna were 6535cpm and 3 plus (>1000 copies/ml). His clinical course and laboratory data suggested progression from acute to chronic hepatitis related to coinfection with hiv-1. The diagnosis was chronic active hepatitis caused by HBV as an opportunistic infection due to coinfection with hiv-1. We began highly active antiretroviral therapy (HAART) because interferon (IFN) therapy was ineffective. HAART was started at an initial dosage of 600 mg zidovudine (AZT), 300 mg lamivudine (3TC), and 2400 mg indinavir (IDV) daily. After 4 weeks, the serum level of HBV dna-polymerase (p) had decreased markedly to 37cpm and that of hiv-1 rna had decreased to below the sensitivity threshold, indicating considerable suppression of the replication of these viruses by the treatment. But HBV dna remained at low levels. Although the incidence of HBV infection in patients with hiv-1 infection has been reported to be high in the united states and europe, simultaneous HBV and hiv-1 infection leading to persistent HBV infection is rare.- - - - - - - - - - ranking = 1.7142857142857keywords = infection (Clic here for more details about this article) |
14/1438. zidovudine-associated type B lactic acidosis and hepatic steatosis in an HIV-infected patient.A 34-year-old obese woman with human immunodeficiency virus (HIV) infection diagnosed a year earlier was seen because of nausea, vomiting, and intermittent diarrhea for 3 weeks. Her current medications included zidovudine. physical examination revealed tachypnea and tender hepatomegaly. Computed tomography of the abdomen showed hepatomegaly with fatty infiltration. liver enzymes were within normal range except for elevated lactate dehydrogenase (LDH). The serum bicarbonate value was low, with a lactate level three times normal. The tachypnea and dyspnea worsened as lactate concentrations rapidly increased to 15 times normal. Although her Po2 and cardiac index were initially adequate, the patient had acute respiratory failure. She died with multiorgan dysfunction, including hepatic failure, severe lactic acidemia, disseminated intravascular coagulation, and renal failure. autopsy revealed hepatomegaly and massive steatosis. physicians should consider lactic acidosis in patients taking zidovudine and having unexplained tachypnea, dyspnea, and low serum bicarbonate concentrations.- - - - - - - - - - ranking = 0.14285714285714keywords = infection (Clic here for more details about this article) |
15/1438. Isolated renal aspergillus abscess in an AIDS patient with a normal CD4 cell count on highly active antiretroviral therapy.Isolated renal aspergillus abscess is a very rare complication of HIV infection. It usually occurs in patients with severe immune deficiency. The case of a 29-year-old HIV-infected homosexual male, a nonintravenous drug abuser, who developed a right renal aspergillus abscess despite normalization of the CD4 cell count after highly active antiretroviral treatment is described. When antimicrobial treatment failed (amphotericin b followed by itraconazole), he was cured by right nephrectomy and remains in good health 3 months later with no recurrence. In cases of aspergillus renal abscess in HIV-infected patients, surgery is the treatment of choice, especially in the current era of highly active antiretroviral therapy.- - - - - - - - - - ranking = 0.14285714285714keywords = infection (Clic here for more details about this article) |
16/1438. typhoid fever and HIV infection: a rare disease association in industrialized countries.typhoid fever is still a global health problem, mainly in tropical and subtropical areas of the world and in developing countries, where relatively elevated morbidity and mortality rates still are present, mostly because of persisting poor hygienic conditions. In the majority of Mediterranean regions, including italy, the disease is constantly present, though with a low prevalence rate, as a result of an endemic persistence of salmonella typhi infection.1-4 On the other hand, in industrialized countries, most cases of S. typhi infection are related to foreign travel or prior residence in endemic countries.4-6 In the united states, 2445 cases of typhoid fever have been reported in the decade 1985 to 1994, and the annual number of cases remained relatively stable over time: over 70% of episodes were acquired in endemic countries (mostly mexico and india).6 The persisting morbidity of S. typhi also may be supported by the increasing resistance rate of this pathogen against a number of commonly used antimicrobial compounds. For instance, 6% of 331 evaluable S. typhi strains were resistant to ampicillin, chloramphenicol, and cotrimoxazole, and 22% of isolates were resistant to at least one of these three agents in a recent survey performed in the united states.6 The spread of antibiotic resistance among S. typhi isolates is emerging in many countries, and multidrug-resistant strains have been isolated, as well as isolates with poor susceptibility to fluoroquinolones,3-5,7-9 so that in vitro susceptibility should be determined for all cultured strains, and antimicrobial treatment should be adjusted accordingly. Nevertheless, fluoroquinolones (e.g., ciprofloxacin and pefloxacin) or third-generation cephalosporins, still represent the best choice for empirical treatment,2,4,6-8,10 and mortality remains rare in Western countries (less than 1% of episodes), although it is expected to be greater in developing areas of the world. The aim of this report is to describe two cases of typhoid fever that occurred in patients with human immunodeficiency virus (HIV) infection, a rarely reported disease association in industrialized countries.- - - - - - - - - - ranking = 1keywords = infection (Clic here for more details about this article) |
17/1438. Cutaneous T-cell lymphoma and human immunodeficiency virus infection: 2 cases and a review of the literature.Cutaneous non-Hodgkin's lymphomas are rare in patients with hiv-1 infection and almost all of the cases reported are of T-cell lineage with histopathological features of mycosis fungoides or sezary syndrome. We studied 2 cases of mycosis fungoides in hiv-1-positive patients who were intravenous drug abusers and were in stage II and IV C2 (CDC'86), respectively. The first patient (stage II) had multiple, erythematous and infiltrated large plaques on the abdomen, back, arms and legs, whereas the second patient (stage IV) had smaller erythematous, slightly scaly and infiltrated pruritic plaques on the trunk and limbs. Their CD4 lymphocyte counts were 634 and 250 cells/mm3, respectively. Biopsies showed features consistent with mycosis fungoides, with an epidermotropic pattern. The immunohistochemical study revealed a T-cell lineage of this atypical infiltrate. Both patients partially responded to topical steroid ointment, showing moderate improvement. Further biopsies performed 6 months later confirmed the prior diagnosis of mycosis fungoides. No tumour stage was observed during a 2-year follow-up. We conclude that mycosis fungoides is rare in HIV-positive patients, but must be included in the differential diagnosis of erythematous plaques in these patients. In suspected, but non-diagnostic cases of mycosis fungoides in HIV-positive patients, only a close clinical and histopathological follow-up can confirm the diagnosis.- - - - - - - - - - ranking = 0.71428571428571keywords = infection (Clic here for more details about this article) |
18/1438. tinea capitis in two black african adults with HIV infection.tinea capitis is rare in adults, although a few cases have been described in HIV-infected patients. We present two cases in black African adults who were HIV positive. In one, the condition led to the diagnosis of HIV infection. It is possible that the rarity of tinea capitis in HIV-positive adults could be related to increased colonization of their scalp by Pityrosporum (malassezia) spp. In patients well controlled with an antiviral therapy, the treatment of tinea capitis seems no more difficult than in non-immunosuppressed patients. There is possibly a relation between clinical presentation and degree of immunodeficiency.- - - - - - - - - - ranking = 0.71428571428571keywords = infection (Clic here for more details about this article) |
19/1438. paraproteins and monoclonal expansion of CD3 CD8 CD56-CD57 T lymphocytes in a patient with HIV infection.An expansion of CD8 lymphocytes associated with a monoclonal rearrangement of the T-cell receptor gamma locus was found in a woman with hiv-1 infection. A subpopulation of HIV-positive patients display an unusual response to HIV infection characterized by a persistent marked CD8 lymphocytosis, the presence of which appears to be associated with an improved long-term prognosis. This condition is thought to represent a florid immune response to an ongoing viral infection which may be HIV itself, and suggests that monoclonal proliferation of CD8 lymphocytes does not imply the presence of an underlying malignant process.- - - - - - - - - - ranking = 1keywords = infection (Clic here for more details about this article) |
20/1438. Resolution of recalcitrant hand warts in an HIV-infected patient treated with potent antiretroviral therapy.Human papilloma virus (HPV)-related cutaneous manifestations occur with increased frequency and severity among HIV-infected persons. In this report, we describe an HIV-infected man with persistent, severe cutaneous hand warts that did not respond to multiple therapies, including liquid nitrogen cryotherapy, topical dinitrochlorobenzene, topical podophyllin, and intralesional interferon-alfa injections. Approximately 1 year after starting a potent protease inhibitor-containing antiretroviral regimen, the patient's recalcitrant cutaneous warts markedly diminished in size, even though the patient did not receive any specific therapy for the warts after starting aggressive antiretroviral therapy. The patient continued on a potent protease inhibitor-containing antiretroviral regimen and, approximately 2 years later, the warts completely resolved. Our patient's dramatic clinical improvement of cutaneous HPV infection that followed protease inhibitor-containing antiretroviral therapy provides a clear-cut example that protease inhibitor-containing combination antiretroviral therapy can produce significant clinical benefit.- - - - - - - - - - ranking = 0.14285714285714keywords = infection (Clic here for more details about this article) |
| <- Previous || Next -> |