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Biomedical subjects

B R Pawel

Publications and source records attributed to B R Pawel.

23 records · Page 2Linked to original sources

Anonymous human immunodeficiency virus surveillance and clinically directed testing in a Newark, NJ, hospital.

From September 1988 to August 1989, in a university hospital in Newark, NJ, 3529 serum and plasma specimens from patients with admitting conditions presumably not associated with human immunodeficiency virus (HIV) infection (Centers for Disease Control, Atlanta, Ga, Sentinel Hospital Surveillance System criteria) were tested anonymously for the presence of type 1 HIV (HIV-1) antibody. Of these specimens, 269 (7.6%) were confirmed HIV-1 seropositive. Overall, 10.3% of male patients and 4.8% of female patients were seropositive. Persons 25 to 44 years old had the highest HIV-1 seroprevalence- 20.9% for male and 7.5% for female patients. Based on this anonymous testing, the number of HIV-infected hospitalized patients discharged in 1988 was estimated. Data on hospital-confirmed HIV-infected patients tested on the basis of clinical suspicion suggest that only 40% of HIV-infected patients were actually tested for HIV-1 infection as part of their medical care in this hospital. These data demonstrate a high prevalence of HIV infection in this patient population and suggest that hospitals serving populations with a high HIV seroprevalence offer routine screening for HIV infection as part of good medical care.

Adolescent↗

Nuclear morphometry as a prognostic indicator in colorectal carcinoma resected for cure.

The prognostic value of nuclear morphometry in addition to clinical and pathologic features was retrospectively studied in 64 cases of colorectal carcinoma resected for cure with a minimum of five years of follow-up. By univariate analysis, patient outcome was found to correlate with the presence of serosal involvement (P = .003), the presence of lymph node involvement (P = .01), the number of involved lymph nodes (P = .0001) and the mean nuclear area (P = .02). With multivariate analysis, only the number of involved lymph nodes significantly correlated with the survival (P = .0001). In a subsequent multivariate model expressing lymph node status as the presence or absence of metastasis, the presence or absence of serosal involvement and the mean nuclear area were both found to independently correlate with the outcome (P = .003 and P = .02, respectively). Linear regression analysis revealed significant colinearity between the mean nuclear area and the number of involved lymph nodes (P = .03). Accelerated failure time models based on determination of serosal involvement and then either specification of the number of involved lymph nodes or calculation of the mean nuclear area were of comparable predictive value to the determination of the number of involved lymph nodes alone. The former appeared to be better at identifying a subgroup of patients with good prognosis. This study demonstrates that two or more models based on pathologic features may be of comparable predictive value in colorectal carcinoma resected for cure, including models that incorporate mean nuclear area.

Adenocarcinoma↗

Human immunodeficiency virus-associated large-cell immunoblastic lymphoma presenting as a perianal abscess.

We report a case of perianal non-Hodgkin's lymphoma that presented as a perianal abscess in an otherwise asymptomatic intravenous drug abuser who tested positively for human immunodeficiency virus infection. Extranodal lymphoma of the anal canal is a very rare event, which has recently been described in homosexual men with the acquired immunodeficiency syndrome. This is the first report, to our knowledge, of perianal lymphoma occurring in a nonhomosexual patient with the acquired immunodeficiency syndrome.

Abscess↗

Sudden death in childhood due to right ventricular dysplasia: report of two cases.

Two cases of sudden death due to arrhythmogenic right ventricular dysplasia (ARVD) occurring in the pediatric age group are described. One of the subjects, at the age of 7 years, is believed to be the youngest child in whom ARVD has been diagnosed at autopsy. The clinical and pathological characteristics of ARVD are discussed.

Adolescent↗