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Biomedical subjects

J P Lythgoe

Publications and source records attributed to J P Lythgoe.

9 recordsLinked to original sources
PubMed1990

Anterior lesser curve seromyotomy and posterior truncal vagotomy versus truncal vagotomy and pyloroplasty in the treatment of chronic duodenal ulcer.

In a prospective randomized controlled clinical trial, anterior lesser curve seromyotomy with posterior truncal vagotomy (AMPT, n = 77) has been compared with truncal vagotomy and pyloroplasty (TVP, n = 69) in 146 patients with chronic duodenal ulcer with a mean duration of symptoms of 7 years. The mean follow-up time was 4.5 years with a range of 2-7 years. One elderly patient died from a myocardial infarction in the TVP group. Acid secretory inhibition in response to insulin and pentagastrin stimuli was equal in both groups, indicating a similar degree of vagal denervation. Recurrent ulcers were more common after AMPT (five) than TVP (two) (P = 0.29, n.s.). Dumping and diarrhoea were significantly commoner (P less than 0.001) after TVP, with 31 instances as opposed to eight with AMPT. The mean operating time was increased by 6 min when AMPT was performed rather than TVP. The results of this study have shown that AMPT is associated with a lower incidence of dumping and diarrhoea and achieves better overall Visick grading. However, continued monitoring is required to assess the long-term incidence of recurrent ulceration after this procedure.

Adult↗
PubMed1987

Overview of randomized trials of postoperative adjuvant radiotherapy in breast cancer.

An overview of the mortality results of the mature trials in which radiotherapy was a randomized option after simple or radical mastectomy is presented. The principal aim of the overview was to study long-term survival, and recent trials, often including chemotherapy options, have not been included. A total of 7941 patients were entered into these trials and 4148 deaths occurred. No differences were found in survival in the first 10 years of follow-up, in trials employing either radical mastectomy or simple mastectomy. Follow-up information after 10 years came mostly from trials employing radical mastectomy with or without irradiation, and in these trials a significant excess of deaths was observed among patients given radiotherapy (P less than 0.001, all trials; P = 0.002, radical mastectomy trials only). Further data collection will be necessary to determine which causes of death are elevated.

Breast Neoplasms↗
PubMed1987

Overview of randomized trials comparing radical mastectomy without radiotherapy against simple mastectomy with radiotherapy in breast cancer.

An overview of mortality in the mature randomized trials comparing radical mastectomy without radiotherapy against simple mastectomy with radiotherapy has been conducted. These trials mark a transitional period between radical mastectomy and simple mastectomy as the generally preferred surgical treatment and as such are not strictly trials assessing the value of postoperative adjuvant radiotherapy. All known mature trials have been included and these four trials have entered a total of 3236 patients, in whom 1678 deaths have been recorded. Overall, no significant difference in survival was seen, but there was a nonsignificant trend for patients given radiotherapy to do worse after 15 years of follow-up.

Breast Neoplasms↗
PubMed1985

Mortality and morbidity after anterior lesser curve seromyotomy with posterior truncal vagotomy for duodenal ulcer.

A survey has been performed of the mortality and morbidity of anterior lesser curve seromyotomy with posterior truncal vagotomy in the elective treatment of chronic duodenal ulcer. There was one death in a series of 605 patients due to a myocardial infarction, an operative mortality of 0.16 per cent. There was no case of ischaemic necrosis of the lesser curvature or fundus of the stomach. Eleven patients had symptoms of delayed gastric emptying (1.7 per cent) and seven of these underwent a drainage procedure (1.3 per cent). Postoperative dumping did not occur, significant diarrhoea was present in two patients (0.33 per cent). This operation is relatively simple, quick and extremely safe to perform. It is suggested that the more widespread use of this type of elective surgery for duodenal ulcer might reduce the mortality from the condition.

Chronic Disease↗
PubMed1982

Manchester regional breast study--5 and 10 year results.

Patients with early breast cancer (n = 1022) were treated between March 1970 and October 1975 in a prospective clinical trial. The results are presented after follow-up of 5-10 years. Clinical stage I cancer cases (n = 714) were randomly allocated to treatment by simple mastectomy and postoperative radiotherapy, or simple mastectomy alone. There was no statistically significant difference in overall survival between the two groups. There was a significant reduction in the frequency of local recurrence in those who received early postoperative radiotherapy compared with those who did not. Clinical stage II cancer cases (n = 308) were randomly allocated to treatment by simple mastectomy and postoperative radiotherapy or radical mastectomy alone. There was no statistically significant difference in survival or in the frequency of local recurrence between the two groups.

Adult↗
PubMed1982

Prognostic factors in breast cancer.

Data relating to 1022 patients with early breast cancer who were entered into a clinical trial have been analysed to assess the importance of various factors in predicting prognosis. Clinical stage was the major determinant of prognosis, and in each stage patients with a breast tumour 2 cm or less in maximum diameter had a significantly better survival than patients with larger tumours. Patients aged between 40 and 49 years and premenopausal patients had relatively favourable prognosis. Site of the tumour within the breast, whether it was situated on the left or the right side, the patient's martial status and the number of pregnancies did not appear to have any influence.

Adult↗
PubMed1978

Manchester regional breast study. Preliminary results.

1020 patients with early breast cancer were treated between March, 1970, and October, 1975, according to a prospective clinical trial. The results have been recorded after a follow-up of two to seven years. 713 cases of clinical stage-1 cancer were randomly allocated to treatment by simple mastectomy and postoperative radiotherapy, or simple mastectomy alone. There was no statistically significant difference in overall survival or in survival without distant metastases between the two groups. There was a significant reduction in the incidence of local recurrence in those who had received early postoperative radiotherapy compared with those who had not. 307 cases of clinical stage-11 cancer were randomly allocated to treatment by simple mastectomy and postoperative radiotherapy or radical mastectomy alone. There was no statistically significant difference in survival or in the incidence of local recurrence or distant metastases between the two groups.

Adult↗