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Biomedical subjects

E Pelayo

Publications and source records attributed to E Pelayo.

2 recordsLinked to original sources

Severe upper gastrointestinal tumor bleeding: endoscopic findings, treatment, and outcome.

BACKGROUND AND STUDY AIMS: The aim of the present study was to review endoscopic findings, treatment, and clinical outcomes in patients with severe upper gastrointestinal bleeding due to tumors. PATIENTS AND METHODS: A retrospective analysis was made of prospectively gathered data on all patients with severe upper gastrointestinal bleeding who were admitted to two large referral centers during a 45-month period. RESULTS: Nine hundred thirty-five patients had severe upper gastrointestinal bleeding, of whom 42 (5%) were found to have tumors. Histologically, nearly all of the tumors were of a malignant type. Fifty-two percent of the patients had acute severe upper gastrointestinal bleeding as the initial presentation of their tumor. The most common tumor was gastric adenocarcinoma, and all of these cases were at advanced stages. Endoscopic hemostasis with thermal probes or epinephrine injection, or both, was carried out in seven patients (17%), with successful hemostasis in all of the tumors. Regardless of the treatment given, patients with upper gastrointestinal tumor bleeding, had a 30-day surgery rate of 43%, a 30-day rebleed rate of 33%, a 30-day mortality rate of 10%, and a 1-year mortality rate of 89%. CONCLUSIONS: Most tumors that cause severe upper gastrointestinal bleeding are of a malignant histologic type and are already at an advanced stage. Endoscopic hemostasis of bleeding upper gastrointestinal tumors is safe and initially effective, and may provide time for elective surgical palliation. Regardless of therapy, upper gastrointestinal tumors with severe bleeding have a poor one-year survival.

Endoscopy, Digestive System↗

Prospective randomized comparative study of bipolar versus direct current electrocoagulation for treatment of bleeding internal hemorrhoids.

Internal hemorrhoids are the most common cause of lower gastrointestinal bleeding. Although new anoscopic therapies are available, few comparative randomized studies have evaluated them in regard to long-term efficacy, recurrence rates, and safety. Our purpose was to compare the treatment of internal hemorrhoids with direct current (Ultroid, Cabot Medical, Langhorn, Pa.) and bipolar (BICAP, Circon ACMI, Stamford, Conn.) hemorrhoid probes. One hundred patients with symptomatic internal hemorrhoids were randomized: 50 to direct current electrocoagulation and 50 to bipolar electrocoagulation. Follow-up and treatment were at 3- to 4-weekly intervals; two to three hemorrhoid segments were treated at each session until relief of symptoms (bleeding, prolapse, and discharge) and a reduction in hemorrhoid size to grade 1 or 0 were noted. The hemorrhoids of 98% of all patients studied were grade 2 or 3; 2% of patients had grade 1 hemorrhoids and none had grade 4 hemorrhoids. At 1 year after treatment, most patients had no (69%) or only mild (23%) recurrence, and a few had severe, symptomatic (8%) hemorrhoid recurrence. A greater recurrence rate was noted after direct current treatment (34%) than bipolar treatment (29%). In contrast, rebleeding at 1 year occurred less frequently after direct current treatment (5%) than after bipolar treatment (20%). Our conclusions were as follows: (1) Both direct current and bipolar probes were effective for control of chronic bleeding from grade 1 to 3 internal hemorrhoids. (2) Bipolar probe was significantly faster than direct current probe. (3) Direct current treatment produced fewer complications than bipolar treatment (12% versus 14%). (4) Recurrence rates were low after 1 year with either device (8%).(ABSTRACT TRUNCATED AT 250 WORDS)

Electrocoagulation↗