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Biomedical subjects

P Sen

Publications and source records attributed to P Sen.

At least 163 records · Page 9Linked to original sources
PubMed1980

Anaerobic infections of the pelvis.

In normal nonpregnant women anaerobes predominate in the cervicovaginal flora. The frequency of Bacteroides fragilis isolation ranges up to 16%. In pregnancy anaerobic prevalence falls progressively from the first to the third trimester and increases precipitously immediately after delivery. Anaerobes are often responsible for infections from vulva to ovaries, but the microbial etiology of post-cesarean section endometritis remains unclear. Risk factors for pelvic infection include cesarean delivery as contrasted with vaginal delivery; among those undergoing cesarean section, risk factors for infection are prolonged labor, prolonged membrane rupture, excessive numbers of vaginal examinations, and perhaps age of less than 17 years. Gonorrhea is also a risk factor for subsequent pelvic infection. The use of an intrauterine contraceptive device is associated with increased risk of pelvic actinomycosis. Anaerobic disease often is associated with a putrid odor and may present as 1 or more pulmonary emboli. Optimal treatment of pelvic anaerobic infections is not yet agreed upon. Clindamycin and chloramphenicol are the 2 documented first-line agents. Penicillin is often effective but a substantial percentage of B fragilis strains resist it; this is also true of carbenicillin. The data on cefoxitin look encouraging, but more data are needed on both the efficacy and the frequency of superinfection.

Adolescent↗
PubMed1980

The clinical spectrum of Campylobacter fetus infections: report of five cases and review of the literature.

Five cases of extra-intestinal Campylobacter fetus infections are described and an additional 242 cases are reviewed from the literature. A variety of clinical syndromes are encountered including endocarditis; thrombophlebitis; meningitis; pneumonia and pleuritis; and infectious arthritis. Thirty-eight per cent of patients presented with bacteremia enteritis. Campylobacter fetus demonstrates a preference for endovascular surfaces. The majority of patients are male and have an underlying illness. Mortality is increased in patients infected with C. fetus intestinalis. Therapy is based on in vitro antibiotic susceptibility tests although the organism is usually sensitive to an aminoglycoside and chloramphenicol.

Adult↗
PubMed1980

Prospective evaluation of combinations of antimicrobial agents for endometritis after cesarean section.

Two hundred and thirty-six women were studied for the development of endometritis following cesarean section. Cultures were taken of the amniotic fluid and endocervix through the internal os during the operative procedure. Of the 236 patients, clinical evidence of endometritis developed in 105. Positive cultures of the amniotic fluid or the endocervix, or both, were not helpful in predicting significant clinical infection. The patients with endometritis were treated with a combination of either clindamycin and gentamicin or cefazolin and gentamicin. All of the 54 patients, receiving clindamycin and gentamicin improved, but eight of the 51 patients in the cefazolin group failed to respond but, subsequently, improved after the administration of clindamycin. No serious toxicity was observed in either group.

Amniotic Fluid↗
PubMed1978

Infective endocarditis in heroin addicts: epidemiological observations and some unusual cases.

The total number of cases of heroin-induced endocarditis occurring over a four-year period were reviewed in order to explain an increase in the number of cases in the last year studied (1975). Brown heroin was noted to be used more frequently by addicts during the period of increased incidence. Cultures of "street samples" of brown and white heroin as well as cocaine were obtained in order to elucidate a possible relationship between the increased use of brown heroin and the increased number of endocarditis cases. Despite frequent contamination of both white and brown heroin, none of the common endocarditis-causing pathogens were isolated from the samples. Staphylococcus aureus, the most common etiological agent, frequently resulted in tricuspid endocarditis. That the accepted criteria for tricuspid endocarditis may be present without actual cardiac valve involvement is demonstrated by a most unusual case of hepatic vasculature infection.

Adolescent↗
PubMed1977

Evaluation of clindamycin and other antibiotics in the treatment of anaerobic bacterial infections of the lung.

Fifty patients who had pneumonia, lung abscess, or empyema, and whose specimens had a fetid odor, were presumed to be suffering from anerobic lung infection and were treated with clindamycin either orally (33 patients) or parenterally (17). Forty-six patients showed marked improvement or recovered; two also underwent lung resection, and thoracotomy was performed in 10. There were three outright treatment failures, and superinfection occurred in one patient. A review of the literature suggests that clindamycin and penicillin (in substantial dosage) are equally effective in treatment of anaerobic lung infection. Transtracheal aspiration is not deemed necessary if the patient is expectorating fetid sputum.

Adolescent↗
PubMed1977

Death-producing hemoptysis in tuberculosis.

Massive hemoptysis in patients with tuberculosis is reported infrequently and then virtually always in association with cavitary disease or aspergilloma. In contrast, we describe herein five cases characterized by hemoptysis on admission, bilateral pulmonary disease, samples of sputum positive for acid-fast bacilli by Ziehl-Neelsen stain, and no obvious cavitary disease. In each, hemoptysis subsided and then suddenly recurred in prodigious amounts, leading to death, probably from asyphyxiation. In patients hospitalized with tuberculous hemoptysis of any amount, with or without an obvious cavity, aggressive diagnostic evaluation, including bronchoscopic examination, may define the site of bleeding, thus permitting rapid surgical intervention if the hemoptysis increases.

Adult↗
PubMed1975

Comparative study of abiogenesis of cysteine and other amino acids catalyzed by various metal ions.

The present work pertains to the study of the influence of nickel, cobalt, thorium, vanadium, molybdate, ferrous ions on the formation of cysteine which is synthesized abiogenically together with other amino acids in sterilized aqueous mixtures of ammonium thiocyanate, formaldehyde, potassium dihydrogen phosphate, calcium acetate, and biological minerals after irradiating by artificial light. The effect of these catalysts on cysteine formation was of the order: Fe++ greater than Mo++ greater than Th++++ greater than V++ greater than Co++ greater than Ni.

Acetates↗