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Stomachs resected from 13 patients with an advanced gastric carcinoma were examined histopathologically to evaluate the effect of induced hypertension chemotherapy (IHC) using angiotensin II. Eight of the 13 patients, randomly chosen, were treated presurgically by IHC with a regimen of 5-fluorouracil, adriamycin and mitomycin C; the same regimen was used in the remaining five patients but without inducing hypertension. Clinical evaluation of the effect gave rise to the confirmation, presurgically, of complete response in three and partial response (PR) in two patients in the IHC group, whereas in the non-IHC group, the highest rating was PR, which was attained in only one patient. Also in the histopathological assessment based on a five-step grading, the IHC group earned in average a higher score than the non-IHC group, with a difference proved significant by Wilcoxon's test. A histological rating of Grade 3, the highest effectiveness, was given to three patients in the IHC group, in one of whom the resected stomach disclosed no viable carcinoma cells but only fibrotic areas replacing carcinoma. There was also a correlation between the clinical and histological ratings as proved to be significant by Spearman's test. We conclude that in gastric carcinoma, the effect of chemotherapy is enhanced by angiotensin II-IHC.

tohoku journal of experimental medicine

Histopathological Evaluation on the Effect of Induced Hypertension Chemotherapy Presurgically Performed in Patients with Advanced Carcinoma of the Stomach.