factor IX

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Hemophilia growth and development study. Design, methods, and entry data

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Abstract

PURPOSE: The study design, research questions, and baseline data are presented from a multicenter longitudinal epidemiologic investigation of the impact of human immunodeficiency virus (HIV) infection on three areas of functioning in children and adolescents with hemophilia: physical growth and sexual maturation, immune function, and neurological and neuropsychological functioning.… Read more

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Relationship of partially purified factor concentrates to immune tests and AIDS. The Hemophilia-AIDS. Collaborative Study Group

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Abstract

We evaluated those members of a cohort of 203 hemophilic men providing all necessary information at their 1984 and 1985 evaluations, to determine whether non-heated or less than 80 degrees C dry heat-treated partially purified factor products were associated with 1) the development of AIDS in human immunodeficiency virus (HIV)-infected persons or 2) abnormal immune test results in participants seroconverting or remaining HIV seronegative.… Read more

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Concordance of polymerase chain reaction with human immunodeficiency virus antibody detection

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Abstract

To evaluate the correlation of detection of human immunodeficiency virus (HIV) by polymerase chain reaction (PCR) with detection of HIV antibody, 271 simultaneous serum and peripheral blood mononuclear cell samples were examined from 242 persons whose activities placed them at increased risk for HIV infection: 142 from homosexual men, 86 from hemophilic men, and 43 from heterosexual partners of HIV-infected persons.… Read more

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Pregnancies in human immunodeficiency virus-infected sex partners of hemophilic men. The Hemophilia-AIDS Collaborative Study Group

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Abstract

We investigated 24 completed pregnancies of 20 healthy, human immunodeficiency virus (HIV)-seropositive sex partners of 20 seropositive hemophilic men. One woman had recurrent herpes simplex type 2 infection; no woman was known to use illicit drugs or to have other purported cofactors for vertical HIV transmission.… Read more

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Absence of human T-cell lymphotropic virus type I coinfection in human immunodeficiency virus-infected hemophilic men

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Abstract

Concern for transmission of human T-cell lymphotropic virus, type 1 (HTLV-1) infection to recipients of infected cellular blood products has prompted development of tests to eliminate blood units with HTLV-I antibodies. Most hemophilic men from the United States became infected with human immunodeficiency virus (HIV) before HIV donor screening and before blood products were processed to inactivate the virus.… Read more

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Prevalence of human immunodeficiency virus type 1 DNA in hemophilic men and their sex partners. Hemophilia-AIDS Collaborative Study Group

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Abstract

Polymerase chain reaction (PCR) was used to detect human immunodeficiency virus (HIV)-1 DNA in peripheral blood mononuclear cells to assess in hemophilic men whether any were HIV-seropositive but uninfected or seronegative but infected and in seronegative sex partners of seropositive hemophilic men whether any were infected.… Read more

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Geographic variability of hemophilia-associated AIDS in the United States: effect of population characteristics. Hemophilia-Associated AIDS Study Group

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Abstract

National AIDS surveillance suggests that approximately 3.5% of all hemophilic patients in the United States have developed AIDS as of February 1988; however, the cumulative incidence of AIDS among seropositive patients at individual hemophilia treatment centers (HTCs) has been reported to be as high as 12%.… Read more

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Duration of human immunodeficiency virus infection before detection of antibody

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Abstract

To estimate the duration and frequency of the period of HIV infection without detectable antibody, modelling techniques were applied to results of detection of HIV DNA by means of the polymerase chain reaction (PCR) and to data from cases in published reports.  … Read more

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Risk of developing AIDS in HIV-infected cohorts of hemophilic and homosexual men

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Abstract

The latency period and/or incidence of the acquired immunodeficiency syndrome (AIDS) may differ in persons infected with the human immunodeficiency virus by different routes or having different “cofactors.” We compared 79 hemophilic men in Pennsylvania and 117 homosexual and bisexual men in California, all having known dates of infection and long postinfection observation periods, to examine these hypotheses.… Read more

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Sex practice correlates of human immunodeficiency virus transmission and acquired immunodeficiency syndrome incidence in heterosexual partners and offspring of U.S. hemophilic men

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Abstract

We assessed the risk of human immunodeficiency virus (HIV) transmission from heterosexual seropositive hemophilic men to their female sex partners through an HIV serosurvey and questionnaire study conducted during 1984-1987. Five percent of 21 female partners of asymptomatic men and 11% of 35 partners of HIV-symptomatic (acquired immunodeficiency syndrome [AIDS], AIDS-related complex [ARC], peripheral generalized lymphadenopathy [PGL]) hemophilic men had been infected when first tested.… Read more

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HIV and hemophilic children’s growth

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Abstract

The acquired immune deficiency syndrome (AIDS) often has profound effects on growth; however, the effects of human immunodeficiency virus (HIV) on asymptomatic children’s growth are unknown. Before heat inactivation/HIV donor screening of factor concentrates, many hemophilic children became infected with HIV.… Read more

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Human immunodeficiency virus infection in hemophilic children

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Abstract

The following groups were compared: (1) children less than 18 years old who have hemophilia-associated acquired immunodeficiency syndrome (AIDS) with other children with AIDS and with adults who have hemophilia-associated AIDS and (2) asymptomatic HIV-infected hemophilic children with asymptomatic HIV-infected hemophilic adults.… Read more

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Racial differences in care of patients with hemophilia

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Abstract

Hemophilia treatment centers were first established in the mid­-1970s to provide optimal and coordinated medical care to patients with the disorder. Our study suggests that blacks with hemophilia may be receiving less coordinated care and less appropriate blood­ product therapy than whites with hemophilia.… Read more

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Hemophilia-associated AIDS in the United States, 1981 to September 1987

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Abstract

Between January 1, 1981 and September 4, 1987, 407 cases of hemophilia-associated acquired immunodeficiency syndrome (AIDS) had been reported to the Centers for Disease Control. The number of cases diagnosed each year nearly doubled, except in 1986, when cases increased only 50 per cent.… Read more

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Potential effect of revising the CDC surveillance case definition for AIDS

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Abstract

The Centers for Disease Control (CDC) revised the surveillance case definition for acquired immunodeficiency syndrome (AIDS) in August, 1987. To determine the impact of this revision, information was extracted from the medical charts of the 630 patients receiving comprehensive medical care as of 1980 at 6 haemophilia treatment centres, and who were therefore likely to have been infected with human immunodeficiency virus (HIV).… Read more

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The Epidemiology of AIDS

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Abstract

Cases of the acquired immune deficiency syndrome (AIDS) were first reported in June and July of 1981, as clusters of Kaposi’s sarcoma and Pneumocystis carinii pneumonia among homosexual men. Since then, epidemiologic surveillance has been used by investigators and public health professionals to identify that an outbreak existed, to characterize the outbreak, and to determine and predict its extent and course.… Read more

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Hemophiliac patient’s knowledge and educational needs concerning acquired immunodeficiency syndrome

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Abstract

The Patient Knowledge Assessment Study (PKAS) was conducted among 107 male hemophilic patients, aged 15 to 67 years, at 19 hemophilia treatment centers (HTC). Participants were given a 30-item questionnaire concerning the cause of acquired immunodeficiency syndrome (AIDS), the groups at risk, and modes of transmission.… Read more

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The course of the epidemic of acquired immunodeficiency syndrome in the United States hemophilia population

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Abstract

The time course of the epidemic of acquired immunodeficiency syndrome (AIDS) as it has occurred in the US hemophilia population is examined using surveillance data collected by the Centers for Disease Control (CDC). These data indicate that the epidemic course in hemophiliacs is distinguishable from that in the homosexual/bisexual and intravenous drug-using populations in at least one respect–the epidemic in the hemophilia population is characterized by a lack of consistent increase in the number of new AIDS cases in successive time intervals.… Read more

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Effects of exposure to factor concentrates containing donations from identified AIDS patients. A matched cohort study

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Abstract

We compared recipients of eight lots of factors VIII and IX voluntarily withdrawn from distribution because one donor was known to have subsequently developed the acquired immunodeficiency syndrome with a nonexposed cohort matched by age, sex, and factor use. The factor VIII recipient cohorts did not differ in prevalence of antibody to human immunodeficiency virus (HIV) (exposed, 75%; nonexposed, 86%), T-cell subset numbers (median: exposed, 619 T-helper cells per cubic millimeter; nonexposed, 659 T-helper cells per cubic millimeter), T-helper to T-suppressor ratios, or immunoglobulin levels.… Read more

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HTLV-III/LAV-seronegative, virus-negative sexual partners and household contacts of hemophiliacs

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Abstract

Public concern about the transmissibility of human T-cell lymphotropic virus type III/ lymphadenopathy-associated virus (HTLV-III/LAV) has been heightened by several reports suggesting the existence of an antibody-negative, virus-positive state in some asymptomatic sex partners of persons who are antibody-positive.  We recently evaluated 88 household members and/or sex partners of persons with hemophilia and found that only two nonhemophiliacs were HTLV-III/LAV antibody-positive.  … Read more

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Conjugal transmission of HTLV-III and lymphadenopathy in Christmas disease

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Abstract

The risk of conjugal transmission of the HTLV-III/LAV virus associated with the acquired immunodeficiency syndrome (AIDS) in patients with hemophilia is unknown.  To date, only a few   instances of proven exposure to HTLV-III have been reported among sexual or family contacts of   patients with hemophilia.  … Read more

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HTLV-III/LAV antibody and immune status of household contacts and sexual partners of persons with hemophilia

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Abstract

We evaluated the human T-cell lymphotropic virus type III/lymphadenopathy-associated virus (HTLV-III/LAV) antibody and immune status of 88 persons living with and/or sexual partners of 43 hemophiliacs, 12 of whom had AIDS, five of whom had AIDS-related complex (ARC), 17 of whom were clinically well but HTLV-III/LAV antibody positive, and nine of whom were well and HTLV-III/LAV antibody negative.… Read more

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HTLV-III exposure during cardiopulmonary resuscitation

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Abstract

To the Editor: There have been no confirmed occupation-related cases of AIDS in health care workers in the United States. We have been following two nurses who participated in mouth-to-mouth re­suscitation of a patient with the AIDS-related complex, who was positive for human T-cell lymphotropic virus Type- III/lymphade­nopathy-associated virus (HTLV-III/LAV), and we here report their seronegativity nine months after exposure.… Read more

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HTLV-III/LAV antibody status of spouses and household contacts assisting in home infusion of hemophilia patients

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Abstract

Thirty-four adult and pediatric hemophilia A and B patients and 50 nonhemophilic members belonging to 28 families were enrolled in August 1984 in a study of human T cell lymphotropic virus type III/lymphadenopathy-associated virus (HTLV-III/LAV) antibody status and T cell subpopulation numbers.… Read more

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Human T-lymphotropic retrovirus type III/lymphadenopathy-associated virus antibody. Association with hemophiliacs’ immune status and blood component usage

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Abstract

We studied the human T-lymphotropic retrovirus type III/lymphadenopathy-associated virus (HTLV-III/LAV) antibody status of 234 factor VIII concentrate recipients, 36 factor IX concentrate recipients, 69 long-term recipients of frozen packed red blood cells, and 47 persons not receiving routine transfusion therapy.… Read more

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HTLV-I antibody status in hemophilia patients treated with factor concentrates prepared from U.S. plasma sources and in hemophilia patients with AIDS

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Abstract

Serum samples from 85 Austrian hemophilia patients treated with lyophilized factor concentrates prepared from U.S. plasma sources, 24 hemophilia patients from Georgia on a home therapy program with factor concentrates, and 10 U.S. hemophilia patients with acquired immunodeficiency syndrome (AIDS) were analyzed by two different methods for the presence of antibodies to the major internal antigen of human T-cell leukemia virus I (HTLV-I) p24.… Read more

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Immune status of blood product recipients

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Abstract

Persons with hemophilia are at risk of the acquired immunodeficiency syndrome (AIDS), and clinically asymptomatic hemophiliacs have shown a high incidence of AIDS-like immune abnormalities, facts leading to speculation that many hemophiliacs have been exposed to the AIDS agent through their blood products.… Read more

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Acquired immunodeficiency syndrome (AIDS) in hemophiliacs

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Abstract

From mid-1977 to mid-1983 the Centers for Disease Control (CDC) has received reports of more than 2,100 cases of acquired immunodeficiency syndrome (AIDS). These cases had either biopsy-confirmed Kaposi’s sarcoma or a biopsy or culture confirmed life-threatening opportunistic infection, without an identifiable cause of immunosuppression.… Read more

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Acquired immunodeficiency syndrome (AIDS) associated with transfusions

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Abstract

Of 2157 patients with the acquired immunode­ficiency syndrome (AIDS) whose cases were reported to the Centers for Disease Control by August 22, 1983, 64 (3 per cent) with AIDS and Pneumocystis carinii pneumonia had no recognized risk factors for AIDS.… Read more

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Acquired immunodeficiency syndrome (AIDS) in hemophiliacs

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Abstract

From mid-1977 to mid-1983 the Centers for Disease Control (CDC) has received reports of more than 2,100 cases of acquired immunodeficiency syndrome (AIDS). These cases had either biopsy confirmed Kaposi’s sarcoma

or a biopsy or culture confirmed life-threatening opportunistic infection, without an identifiable cause of immunosuppression.… Read more