SummaryFifty patients with hypertension, aldosterone excess, and low plasma renin concentration underwent adrenal surgery. There was a highly significant fall in mean systolic and diastolic pressures after the operation. The mean postoperative diastolic pressure fell to strictly normal levels, however, in only 19 out of 38 patients from whom an adrenocortical adenoma was removed and in only two out of 10 non-tumour patients.There was a significant correlation between the fall in blood pressure during spironolactone treatment and after adrenal surgery though levels were generally slightly lower during the former therapy. It is suggested that removal of an aldosterone-producing adenoma is the treatment of choice provided a good preoperative hypotensive response to spironolactone occurs, while the treatment of choice for non-tumour patients is often long-term spironolactone.

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EDITORIAL SYNOPSIS The radio-telemetering capsule (radio-pill) has been used to study the return of motility in the small bowel after vagotomy with a drainage procedure, gastric operations not involving vagotomy, and non-gastric operations.Small intestinal movements returned in about 10 hours after vagotomy, about four hours after the various gastric operations, and within one hour in those operations not involving handling of the viscera.The implications of these results are discussed in relation to the management of patients after gastric surgery.

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