Factors Affecting the Polyposis Detection Rate (Pdr) In Greece. a Retrospective Study

Aims Polyp detection rate (PDR) is strongly correlated to the adenoma detection rate, which is the most important metric of the success of colorectal screening programs. We estimated the PDR in an academic Greek gastroenterology department and factors that affect it during a ten-year period.

Methods All patients who underwent a screening colonoscopy in our department during the last decade (1/2010-12/2019) were included[2924 patients, Male/Female:1366/1558, median age: 58 years(min:18- max:80 years)]. Epidemiological and endoscopic data were collected.

Results Among the total number of colonoscopies performed, 2208 (75.5 %) were performed by a trainee under the supervision of an expert and 716(24.5 %) by expert endoscopists. Examination completion was reported in 2654(90.8 %) and it was at least modestly tolerated in 2770 (94.7 %) patients, although colonoscopy is performed under midazolam sedation only. Patients tolerance and completion rate didn’t differ between trainees and experts (p≥0,150) but differed according to gender (completion among males:92.8 % vs 89 %, p<0.001- moderate/good tolerance among males:97.5 % vs 92.3 %, p<0.001). Bowel preparation was at least modest in 2541/2654 patients (95.7 %) with a complete endoscopy and was better among females (female:94.7 % vs 92.6 %, p=0.022). Polyps were reported in 675/2924 (23.1 %) and were more commonly reported among patients with complete examination [654/2654(24.6 %) vs 21/270(7.1 %), p<0.001]. Among patients with a complete endoscopy PDR was not affected by patients bowel preparation [630/2541(24.8 %) with at least fair preparation vs 24/113 (21.2 %) with poor, p=0,316], performers status (trainee 22.9 % vs expert:23.6 %, p=0.683), though was higher among males (29.9 % vs 19.8 %, p<0.001). Patients with polyps were older (61±10 vs 58±12 years old, p<0.001).

Conclusions In our department, during the last decade, screening endoscopy is more commonly well tolerated and completed among males though bowel preparation is significantly better among female patients. PDR is affected by endoscopy completion, patients’ gender but not by the performer experience.

Citation: Voulgaris T, Karatzas P, Laoudi E etal. eP253 FACTORS AFFECTING THE POLYPOSIS DETECTION RATE (PDR) IN GREECE. A RETROSPECTIVE STUDY. Endoscopy 2021; 53: S181.

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Artikel online veröffentlicht:
19. März 2021