Biomedical subjects
K M Tomera
Publications and source records attributed to K M Tomera.
Renal oncocytoma.
Review of the Mayo Clinic tissue registry for the years 1950 to 1979 identified 90 cases of pure, well differentiated eosinophilic granular cell renal tumors. The clinical, laboratory, pathologic and survival features of these patients were analyzed. Fifty-nine per cent of these tumors were discovered incidentally during an examination for other problems and 91 per cent were confined within the renal capsule, with no evidence of local invasion. Sixty-two patients had grade 1 and 28 had graded 2 tumors. None of the patients with grade 1 tumors developed metastases. Four of the patients with grade 2 tumors died of metastatic disease. Survival curves show no difference in survival between patients with these renal tumors, and an age and sex matched cohort. If the term renal oncocytoma is used to signify a very well differentiated (grade 1) eosinophilic granular cell renal parenchymal tumor then this study demonstrates that renal oncocytomas are non-aggressive tumors with a highly favorable prognosis.
The Tomera technique: high energy transurethral thermotherapy with low energy morbidity.
Transurethral Microwave Thermotherapy (TUMT) is a unique and promising method of treating benign prostatic hyperplasia. Clinical outcomes after high energy protocol TUMT 2.5 are comparable to transurethral resection of the prostate. Previously this increased efficacy has had greater morbidity than lower energy protocol TUMT 2.0 with catheterization required in all patients. A technique of careful preoperative patient teaching, intravenous ketorolac and remifentanyl; patient discomfort is minimized, bladder spasms avoided, and requirement for catheterization infrequent. In 16 consecutive patients, only four required catheters despite an average energy of 155 KJ and a maximum energy of 208 KJ.