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Biomedical subjects

W G MacGregor

Publications and source records attributed to W G MacGregor.

9 recordsLinked to original sources

Surgery following chemotherapy and radiotherapy for advanced carcinoma of the cervix.

Ten patients with advanced squamous carcinoma of the cervix have been treated with both radiotherapy and monthly cyclical chemotherapy. All patients have subsequently undergone a simple hysterectomy and bilateral salpingo-oophorectomy with para-aortic and pelvic node biopsy. Six patients were found to be histologically free of disease, 2 patients had residual cervical disease completely excised, and 2 patients had persistent intra-abdominal disease. Eight patients have survived 24-43 months one of whom has recurrent disease. The addition of chemotherapy to standard radiotherapy appears to have improved the results of treatment, however, in view of the high complication rate (50%) it is considered that surgical assessment of response is not justified and that surgery should only be undertaken where there is good evidence of persistent but operable disease.

Adult↗

Peripheral plasma immunoreactive 6-oxo-prostaglandin F1 alpha and gynaecological tumours.

Peripheral plasma levels of immunoreactive 6-oxo-PGF1 alpha, the stable hydrolysis product of prostacyclin, were significantly higher in female patients with tumours of the genital tract than in normal controls. In the groups with malignant tumours, these high levels declined after operation and/or radiotherapy if the tumour responded to treatment. In patients who did not respond to treatment or with tumour recurrence, levels of plasma 6-oxo-PGF1 alpha remained high or even rose further. Benign gynaecological tumours were also associated with significantly raised plasma 6-oxo-PGF1 alpha levels, and these fell to normal levels immediately on surgical removal of the tumour. Possible reasons for these alterations are described. Further investigations are warranted to see whether serial measurements of plasma 6-oxo-PGF1 alpha could be used as a prognostic index for the clinical status of patients with gynaecological tumours.

6-Ketoprostaglandin F1 alpha↗

Closing volume and pregnancy.

Measurements of closing volume have been made in 20 women between the 36th and 40th weeks of pregnancy. The patients were studied in the erect and supine positions and the point of airway closure was related to functional residual capacity. The results show that airway closure occurred during tidal ventilation in 10 patients in the erect position and in six patients in the supine position. These results may explain the variation found in maternal arterial oxygen tension during pregnancy.

Arteries↗