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Biomedical subjects

J Emslie

Publications and source records attributed to J Emslie.

14 recordsLinked to original sources

Use of rectal cancer position as a prognostic indicator.

The hypothesis of this study was that the position of rectal cancer within the circumference of the rectum influences mortality. Tumor position was prospectively documented in 181 patients with rectal carcinoma by two examiners. The results were analyzed for correlation to survival using the Lifetest model and for multivariate correlation using the Cox regression model. An anterior tumor location was present in 43 patients and was found to have a significantly higher survival rate than other positions. Two-thirds of anterior tumors were of pathologically favorable Dukes' stages. Fifty-five patients had posterior tumors with decreased survival rates, two-thirds of which were of unfavorable stages. Circumferential position in 61 patients was most predictive of poorer outcome, with a relative risk of death being increased by 4.6 times (P = 0.014) and a 5-year survival rate of 68.8 per cent; 85 per cent of these tumors were of pathologically unfavorable stages. The 5-year survival rate for the whole group, which included 181 patients with all histopathological stages except those with distant metastases at presentation, was 78.5 per cent. This ranking of survival rates was found to be consistent in each category with the postoperatively determined Dukes' stage, which carried a prognostic significance of P = 0.0001. We conclude that tumor position is a significant indicator of prognosis available before surgery for rectal cancer.

Adenocarcinoma↗

Long-term follow-up of patients treated with ileoendorectal pull-through and right colon onlay patch for total colonic aganglionosis.

BACKGROUND/PURPOSE: This study was performed to assess the long-term follow-up of five patients who underwent one-stage ileoendorectal pull-through with right colon onlay patch for total colonic aganglionosis (TCA) at Kaiser Permanente Medical Center. METHODS: A retrospective review of inpatient and outpatient charts and telephone follow-up of all patients were conducted to obtain current data regarding growth, development, bowel function, and postoperative and late complications. RESULTS: Follow-up has ranged from 2 to 11 years. All patients are at or above the 50th percentile for weight by age and are continent with 1 to 5 daily bowel movements. Only two patients required reoperation. A perirectal abscess developed in one patient 2 months postoperatively. In the second patient a functional obstruction was relieved by sphincterotomy. CONCLUSIONS: Ileoendorectal pull-through with right colon onlay patch is associated with few early and late postoperative complications; it appears to be superior to other procedures in the early postoperative period because of the more rapid return to acceptable stooling patterns. This method of reconstruction provides an excellent opportunity for normal growth, development, and long-term bowel function.

Anastomosis, Surgical↗

Outbreak of HIV infection in a Scottish prison.

OBJECTIVE--To investigate the possible spread of HIV infection and its route of transmission among prison inmates. DESIGN--In response to an outbreak of acute clinical hepatitis B and two seroconversions to HIV infection, counselling and testing for HIV were offered to all inmates over a two week period in July 1993. Information was sought about drug injecting, sexual behaviour, and previous HIV testing. SETTING--HM Prison Glenochil in Scotland. SUBJECTS--Adult male prisoners. MAIN OUTCOME MEASURES--Uptake of HIV counselling and testing; occurrence and mode of HIV transmission within the prison. RESULTS--Of a total 378 inmates, 227 (60%) were counselled and 162 (43%) tested for HIV. Twelve (7%) of those tested were positive for antibody to HIV. One third (76) of those counselled had injected drugs at some time, of whom 33 (43%) had injected in Glenochil; all 12 seropositive men belonged to this latter group. Thirty two of these 33 had shared needles and syringes in the prison. A further two inmates who injected in the prison were diagnosed as positive for HIV two months previously. Evidence based on sequential results and time of entry into prison indicated that eight transmissions definitely occurred within prison in the first half of 1993. CONCLUSION--This is the first report of an outbreak of HIV infection occurring within a prison. Restricted access to injecting equipment resulted in random sharing and placed injectors at high risk of becoming infected with HIV. Measures to prevent further spread of infection among prison injectors are urgently required.

Adult↗

Cytogenetic abnormalities in a disseminated medulloblastoma.

A 3-year-old girl developed central nervous system, bone and bone marrow metastases, and hypercalcaemia shortly after presentation with medulloblastoma. Cytogenetic studies of the involved bone marrow showed multiple abnormalities including iso(17q). This chromosome rearrangement has been reported in other cases of recurrent or disseminated medulloblastoma. More studies are required relating the karyotypes of medulloblastomas to long-term outcome to determine if the presence of iso(17q) is a prognostic factor in this malignancy.

Bone Neoplasms↗

Effect of dietary calcium level on medullary bone calcium reserves and shell weight of Leghorn hens.

Two experiments were conducted to determine the effect of different levels of dietary Ca and subsequent feeding of a very low level of Ca on the medullary bone Ca reserves of laying hens. In Experiment 1, a total of 30 40-wk-old Single Comb White Leghorn hens were offered a diet with 2.5, 3.5, or 4.5% Ca for a period of 21 days with 10 birds per dietary treatment. On Day 21, five hens from each dietary treatment were euthanatized. The remaining birds were offered a .46% Ca diet for 5 days. In Experiment 2, 25 Single Comb White Leghorn hens were fed a 3.5% Ca diet for 21 days. Hens were then offered a .46% Ca diet and five hens euthanatized on Days 0, 2, 3, 5, and 7 of feeding the low-Ca diet. In Experiment 1, dietary Ca level had a significant (P less than .05) effect on total medullary Ca reserves of laying hens. Previous dietary Ca level had no significant (P greater than .05) effect upon medullary bone Ca reserves after subsequently feeding the low-Ca diet for 5 days. There was a (P less than .05) significant reduction in medullary bone Ca reserves of hens, regardless of previous level of calcium fed. In Experiment 2, feeding a low level of dietary Ca resulted in a significant (P less than .01) reduction in medullary bone Ca reserves of all bones measured, except the humerus. Although there was a significant (P less than .05) reduction in medullary bone Ca during the depletion period, hens appeared to make some attempt to conserve medullary bone Ca reserves.

Animals↗

A submicroscopic translocation, t(4;10), responsible for recurrent Wolf-Hirschhorn syndrome identified by allele loss and fluorescent in situ hybridisation.

A 2 year old girl presented with developmental delay and subtle dysmorphic features suggestive of Wolf-Hirschhorn syndrome (WHS). High resolution chromosome analysis was normal in the child and both parents. Molecular analysis indicated that the child had not inherited a maternal allele of probes from 4p16, confirming the clinical diagnosis. Prenatal diagnosis in the next pregnancy showed that again the fetus had no maternal allele for probes mapping to 4p16. Fluorescent in situ hybridisation in the mother showed a submicroscopic translocation, t(4;10). A normal karyotype in a child with clinical features of WHS is an indication for further investigation.

Abnormalities, Multiple↗

Ethnostatistics and the AIDS epidemic.

Ethnostatistics is the study of the social practices surrounding the construction and interpretation of statistics. This paper considers certain ethnostatistical aspects of the official statistics on AIDS cases--the monthly updated figures on AIDS cases supplied by the Department of Health and derived from the English and Scottish voluntary reporting schemes. The paper focuses on problems in the classification of cases according to the route of virus transmission, particularly where multiple risk practices may be reported. Some (but not all) classification problems can be avoided by adopting a cross-tabular format of presentation. The data on reported Scottish AIDS cases are re-analysed in order to illustrate such a cross-tabular representation. These data are the basis for a concluding statement on the difficulties in projecting future heterosexual epidemic spread.

Acquired Immunodeficiency Syndrome↗

Chromosome 22 abnormalities in Ewing's sarcoma.

A child with disseminated Ewing's sarcoma underwent cytogenetic investigations which showed different structural rearrangements of chromosome 22 at diagnosis (?ring22), and at relapse [t(10;22)], but the classic translocation t(11;22) was not detectable. This case provides further evidence of the importance of chromosome 22 in this disease, while raising some questions about the central importance of the translocation between chromosomes 11 and 22.

Bone Neoplasms↗

Surveillance of AIDS in the United Kingdom.

The surveillance of cases of the acquired immune deficiency syndrome (AIDS) in the United Kingdom is described and a preliminary analysis made of the 1012 cases that were reported to the end of August 1987. Homosexuals were the largest risk group. For the first time it is possible to present cases by the date of diagnosis and by the regional health authority of residence. The rate of increase of new cases shows no sign of slowing down. One third of patients with AIDS lived in a different regional health authority from that in which their disease had been diagnosed. The geographical distribution varied with the risk group. The commonest presenting clinical feature at diagnosis was Pneumocystis carinii pneumonia. Kaposi's sarcoma was considerably more common among homosexuals than among people in other groups at risk.

Acquired Immunodeficiency Syndrome↗

High resolution chromosome results in retinoblastoma families.

In three families in the North of England, where retinoblastoma is transmitted, 41 members were studied by high resolution chromosome banding at the 500+ and 900+ levels. None of the 10 affected individuals or their normal relatives showed any deletion in the 13q14 region.

Chromosome Banding↗

Infections in British clinical laboratories, 1982-3.

During 1982-3, 31 specific and 12 uncharacterized infections were reported from 30 of 240 laboratories, representing 29 223 person-years of experience. Thirteen cases of hepatitis included 10 of type B or non-A, non-B hepatitis of probable occupational origin (attributable incidence 34.2 per 100 000 person years) affecting haematology, biochemistry, and postmortem workers. Of nine cases of tuberculosis, three were probably acquired in the laboratory (attributable incidence 10.3 per 100 000 person years) and affected microbiology, morbid anatomy, and postmortem staff. Microbiology staff also acquired, probably from the laboratory, four shigella infections and one each of brucella and herpes. The general community was the probable source of three cases of hepatitis A, two of rubella, and one of varicella. During the two years the risk of laboratory acquired infection mainly concerned the postmortem room and mortuary.

Adult↗