Seymoure Levitt

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Serum angiotensin converting enzyme (ACE) activities were determined in patients with different types of inflammatory disease of the gastrointestinal tract, in patients with peptic ulcer, and in healthy volunteer subjects. ACE activity in serum was measured by its in vitro ability to cleave hippuric acid from the synthetic tripeptide(More)
A total of 230 patients had planned single or multiple reoperative procedures following "curative" resection of colorectal cancer at the University of Minnesota. The site of the primary lesion was extrapelvic in 91, and later evidence of cancer was found in 58 patients (64%) at re-operation and/or other follow-up. Eight of the 58 (14%) were converted to(More)
We examined a 70-year-old woman who became aphasic after a left thalamic infarction. Computed tomographic scan showed injury that was largely limited to the ventral anterior and rostral ventral lateral thalamic nuclei. Speech was characterized by reduced voice volume, impaired auditory and reading comprehension, perseverations, intermittent use of jargon,(More)
Although segmental bowel necrosis is a recognized complication of pancreatitis, the duodenum is rarely involved. We report a unique case of acute duodenal obstruction characterized by transmural necrosis and intramural duodenal haematoma in a young man with acute alcohol-induced pancreatitis. The patient recovered following pancreaticoduodenectomy.
A 23-year-old man with cystic fibrosis developed massive rectal bleeding that continued intermittently, necessitating an emergency laparotomy and total colectomy. The resected colon was shortened by fibrosis and displayed widespread excessive production of mucus, forming a carpetlike layer over the mucosa as well as segmental discrete areas of mucosal(More)
BACKGROUND While the majority of fistulas-in-ano are anatomically simple and easy to treat, a significant number are high or anatomically complex and have the potential to become a major management problem. METHODS One hundred and seven consecutive patients undergoing surgery for fistula-in-ano were studied prospectively with standardized anatomic(More)
BACKGROUND The risk stratification currently applied prior to curative treatment for localized prostate cancer (PC) does not take into account comorbidity or age. Therefore, we investigated the impact of comorbidity on overall survival (OS) in PC patients treated with external beam radiotherapy (EBRT) and high-dose rate (HDR) brachytherapy boost. MATERIAL(More)
Reduction of interfraction setup uncertainty is vital for assuring the accuracy of conformal radiotherapy. We report a systematic study of setup error to assess patients’ three-dimensional (3D) localization at various treatment sites. Tomotherapy megavoltage CT (MVCT) images were scanned daily in 259 patients from 2005–2008. We analyzed 6,465 MVCT images to(More)
BACKGROUND Familial adenomatous polyposis (FAP) has historically been treated by colectomy and ileorectal anastomosis (IRA). Preservation of the rectum allows the subsequent development of cancer in the rectum. The risk of rectal cancer following ileorectal anastomosis in the Australian population has not been published to date. METHODS An audit of the(More)