Biomedical subjects

Cemal Yildiz

Publications and source records attributed to Cemal Yildiz.

2 recordsLinked to original sources

PubMed2003

Colonoscopy without sedation.

BACKGROUND/AIMS: In Turkey, colonoscopy is a procedure generally performed with intravenous sedation and analgesia. Most of the complications of colonoscopy are related to sedation. The aims of this study were to determine the percentage of patients who could successfully undergo nonsedated colonoscopy without sedation and to assess patient tolerance and acceptance. METHODS: The study included 120 consecutive patients undergoing colonoscopy by two endoscopists in our endoscopy unit. The procedure routinely began without sedation, which was later given (midazolam and hyoscine butylbromide) only if significant discomfort occurred. Parameters of blood pressure, oxygen saturation and heart rate were measured before and during colonoscopy. After the procedure patients were asked to rate their pain on a four point scale 1=no pain, 2=slight, 3=moderate, 4=severe and they were also asked if they would be willing to undergo colonoscopy again without sedation. RESULTS: Eighty eight percent of all colonoscopies were completed without sedation. Mean PaO2 was 96.46 in nonsedated patients and 93.90 (significant p<0.05) in sedated patients. No difference was found between blood pressure and pulse rate of nonsedated and sedated patients. The mean pain score was 2.0 for the nonsedated patients and 3.8 (significant p<0.05) for the sedated patients. Eighty eight percent of patients stated that they would be willing to undergo colonoscopy without sedation again. CONCLUSIONS: In experienced hands, colonoscopy without sedation can be completed successfully in most patients, without any complications and use of extra instrumentation.

Adolescent↗

PubMed2003

Is prolapse gastropathy a cause of upper gastrointestinal bleeding?

BACKGROUND/AIMS: Prolapse gastropathy is a clinical syndrome involving the invagination of a part of the gastric mucosa into the lower esophagus resulting in well demarcated hemorrhagic mucosa and sometimes bleeding. The importance of this syndrome is that it has been reported as a cause of hematemesis. As this syndrome is considered to be seen in patients with retching and vomiting and to be one of the causes of upper gastrointestinal bleeding, this study was undertaken to evaluate its frequency and importance in our patients. METHODS: The study groups comprised of 941 patients with hematemesis and 54 with recurrent retching and vomiting. Biopsies were obtained from the prolapsing mucosa when detected. Hematoxylin and eosin stained specimens were reviewed by an experienced histopathologist. RESULTS: Prolapse gastropathy was detected in 20 patients (2%), of whom six (0.6%) were in the hematemesis group and 14 (25.9%) in the retching and vomiting group. The location of the lesion was the greater curvature in 10 patients (50%), lesser curvature in seven patients (35%) and anterior wall in three patients (15%). In all six cases from the hematemesis group, bleeding was not related to prolapse gastropathy because other causative lesions were identified. Histologic evaluation of the biopsies revealed acute inflammation, chronic inflammation and submucosal hemorrhage. CONCLUSIONS: According to the results of this study, prolapse gastropathy is not a cause of hematemesis. Other causes should be identified when prolapse gastropathy is detected in a patient with hematemesis.

Adolescent↗