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Biomedical subjects

Y Hecht

Publications and source records attributed to Y Hecht.

At least 19 recordsLinked to original sources
PubMed1992

[Surgical treatment of toxic megacolon complicating pseudomembranous colitis. Apropos of a case, review of the literature].

Toxic megacolon complicating pseudomembranous colitis has been rarely observed. Only 36 cases have been previously reported. We present herein a new case report in which pseudomembranous colitis was secondary to prophylactic antibiotherapy with pefloxacin for hip prosthesis. Despite specific oral treatment (against Clostridium difficile) by vancomycin, toxic megacolon required urgent subtotal colectomy with ileostomy and sigmoidostomy. Postoperative course was uneventful. Analysis of the reported cases demonstrates the high overall mortality of the series (32%); the procedure of choice seems to be subtotal colectomy, which removes the septic focus, with a 12% operative mortality rate.

Aged↗
PubMed1989

Detection of specific IgG and IgA antibodies to Chlamydia trachomatis in women with salpingitis confirmed by laparoscopy.

The sera from 12 consecutive symptomatic women with laparoscopy-confirmed salpingitis were screened for the presence of specific IgG and IgA antibodies to Chlamydia trachomatis by a single antigen (L-2) immunoperoxidase assay. All women were found to have IgG and IgA antibodies to C trachomatis. Six women had positive endocervical cultures for C trachomatis, and one of these had positive cultures from the conjunctiva and fallopian tubes. Serum chlamydial IgA antibodies may serve as markers for active infection with C trachomatis regardless of whether organisms can be identified by culture or direct fluorescent antibody techniques from endocervical or fallopian tube samples.

Antibodies, Bacterial↗
PubMed1988

Prevalence of IgA and IgG antichlamydial antibodies in women in the third trimester of pregnancy.

The prevalence of serum antichlamydial IgA and IgG antibodies was investigated by screening 77 randomly selected patients who were in the third trimester of pregnancy. An indirect immunoperoxidase assay that quantitates IgA and IgG was used for screening. Twenty-five women had both IgA and IgG antibodies; an additional ten women had only IgG antibodies. These findings suggest that greater than 45 percent of pregnant women tested had been exposed to Chlamydia trachomatis, and more than 32 percent had evidence of active infection.

Chlamydia Infections↗
PubMed1988

A comparison of culture, direct fluorescent antibody test, and a quantitative indirect immunoperoxidase assay for detection of Chlamydia trachomatis in pregnant women.

An indirect immunoperoxidase assay that quantitates antichlamydial immunoglobulin G (IgG) and IgA antibodies in serum was compared with endocervical culture and direct fluorescent antibody (MicroTrak) for detection of Chlamydia trachomatis in asymptomatic pregnant women. Of the 64 women tested by the three methods, 22 (34%) had antichlamydial IgG and IgA in their serum. The culture was positive in nine patients (14%) and the MicroTrak was positive in eight (12.5%). All positive cultures were immunoperoxidase-positive. One positive MicroTrak was immunoperoxidase- and culture-negative. Thirteen patients had IgG and IgA antichlamydial antibodies with no organisms detected in the endocervix by culture or by direct fluorescent antibody screen.

Cells, Cultured↗
PubMed1987

[Normal pregnancy after a Budd-Chiari syndrome treated by shunting: apropos of a case, review of the literature].

A patient who had a meso-atrial by-pass for a Budd-Chiari syndrome a year before conception carried her pregnancy to term. The authors have reviewed the literature. When they had studied the literature the authors took into account cirrhoses of the liver and portal hypertension in association with pregnancy. They concluded that a patient who had had a Budd-Chiari syndrome, particularly when she had also had a porto-caval shunt, was not in principle unable to have a pregnancy.

Adult↗
PubMed1985

Granular natural-killer cells develop into mucus-secreting cells.

Colonies of granular natural-killer cells selectively develop in lymph-node cell cultures of nude mice after stimulation with rat T-cell growth factor. When these cells are grown on X-irradiated monolayers prepared from 16-18-day-old mouse embryos, they are triggered to synthesize and secrete a sulphated glycoprotein that can be identified as mucus. As a result of an erosive process of the granules, the mucoid material accumulates in pools in the cytoplasm matrix. The secretion is operated through a process of budding of double-membrane-bound vesicles. The successful triggering of mucous synthesis is interpreted by the successful growth of those mesenchymal cells in the embryonic monolayer that function in the induction of epithelial morphogenesis in the developing embryo.

Animals↗
PubMed1979

[Recovery after treatment for cirrhotic ascites : a study of 90 cases. Frequency of arterial hypertension (author's transl)].

Thirty patients with alcoholic cirrhosis, ascitic during 13.6 +/- 13 months (mean +/- S.D.) were cured of ascites and followed up during 2 to 9 years (4.3 +/- 2.7 years). Twenty six were compared with a same number of cirrhotics, matched for age and sex, who died during the year after the first admission. Many biological data show statistical difference. Nevertheless no valuable prognosis can be predicted in an individual case. The clinical improvement is associated with major, sometimes total biological recovery. Other complications of cirrhosis (gastro-intestinal bleeding, hepatoma) may occur (7 cases with 5 deaths) or alcoholic hepatitis if alcohol withdrawal is stopped (3 cases, 2 deaths). Some associated diseases look unexpectedly frequent: diabetes (4 cases), obesity (9), nodular lipomatosis (14 cases) whose frequency looks higher than that can be calculated for a similar group of healthy subjects.

Adult↗