CHARACTERISTICS OF COLORECTAL POLYPS AND CANCER, A RETROSPECTIVE REVIEW OF COLONOSCOPY DATA IN IRAN

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DELAVARI ALIREZA; MARDAN FATEMEH; SALIMZADEH HAMIDEH; BISHEHSARI FARAZ; KHOSRAVI PEJMAN; KHANEHZAD MARYAM; NASSERI MOGHADDAM SIAVOSH; MERAT SHAHIN; ANSARI REZA; VAHEDI HOMAYOON; SHAHBAZKHANI BIJAN; SABERIFIROOZI MEHDI; SOTOUDEH MASOUD; MALEKZADEH REZA

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Journal: MIDDLE EAST JOURNAL OF DIGESTIVE DISEASES (MEJDD) Year:2014 | Volume:6 | Issue:3 Page(s): 144-150

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Title

CHARACTERISTICS OF COLORECTAL POLYPS AND CANCER, A RETROSPECTIVE REVIEW OF COLONOSCOPY DATA IN IRAN

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Keywords

COLON CANCER

COLONOSCOPY

COLONIC POLYPS

Abstract

BACKGROUND: Early diagnosis and endoscopic resection of adenomatous polyps is the main approach for screening and prevention of colorectal cancer (CRC). We aimed to assess polyp detection rate (PDR) and to characterize demographic, clinical, and pathological features of colorectal polyps in an Iranian population.METHODS: We retrospectively analyzed the data from 5427 colonoscopies performed during 2007-2012 at Masoud Clinic, the main endoscopy center associated with Sasan Alborz Biomedical Research Center, in Tehran, Iran.RESULTS: our sample included 2928 (54%) women and 2499 (46%) men, with the mean age of 48.3 years (SD=16.1). The most common reasons for COLONOSCOPY included screening in 25.0%, and gastrointestinal bleeding in 15.2%. Cecal intubation was successful in 86% of patients. The quality of bowel preparation was fair to excellent in 78.1% (n=4235) of colonoscopies. Overall PDR was 42.0% (95% CI: 40.6-43.3). The PDR in men (51.1%, 95% CI: 49.1-53.1) was significantly higher than women (34.2%, 95% CI: 32.4-35.9, p<0.001). Polyps were more frequently observed in patients after the 6th decade of life (F=3.2, p=0.004). CRC was detected in 2.9% (73/2499) of men and 1.9% (57/2928) of women (p=0.02). The mean age for patients with cancer was significantly higher than that for individuals with polyps, 60.9 (SD=13.4) year vs.56.9 (SD=13.7) year, respectively (p=0.001). Almost 82.8% of the lesions were precancerous with tubular type predominance (62.3%) followed by tubulo-villous (10.3%), villous (6.6%), and serrated (3.6%). Hyperplastic/inflammatory polyps comprised 17.2% of lesions.CONCLUSION: Distal colon was more prone to develop polyps and cancer than proximal colon in our series. These findings provide a great infrastructure for next preventive programs and have implications for colorectal cancer screening at population-level.

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APA: Copy

DELAVARI, ALIREZA, MARDAN, FATEMEH, SALIMZADEH, HAMIDEH, BISHEHSARI, FARAZ, KHOSRAVI, PEJMAN, KHANEHZAD, MARYAM, NASSERI MOGHADDAM, SIAVOSH, MERAT, SHAHIN, ANSARI, REZA, VAHEDI, HOMAYOON, SHAHBAZKHANI, BIJAN, SABERIFIROOZI, MEHDI, SOTOUDEH, MASOUD, & MALEKZADEH, REZA. (2014). CHARACTERISTICS OF COLORECTAL POLYPS AND CANCER, A RETROSPECTIVE REVIEW OF COLONOSCOPY DATA IN IRAN. MIDDLE EAST JOURNAL OF DIGESTIVE DISEASES (MEJDD), 6(3), 144-150. SID. https://sid.ir/paper/319086/en

Vancouver: Copy

DELAVARI ALIREZA, MARDAN FATEMEH, SALIMZADEH HAMIDEH, BISHEHSARI FARAZ, KHOSRAVI PEJMAN, KHANEHZAD MARYAM, NASSERI MOGHADDAM SIAVOSH, MERAT SHAHIN, ANSARI REZA, VAHEDI HOMAYOON, SHAHBAZKHANI BIJAN, SABERIFIROOZI MEHDI, SOTOUDEH MASOUD, MALEKZADEH REZA. CHARACTERISTICS OF COLORECTAL POLYPS AND CANCER, A RETROSPECTIVE REVIEW OF COLONOSCOPY DATA IN IRAN. MIDDLE EAST JOURNAL OF DIGESTIVE DISEASES (MEJDD)[Internet]. 2014;6(3):144-150. Available from: https://sid.ir/paper/319086/en

IEEE: Copy

ALIREZA DELAVARI, FATEMEH MARDAN, HAMIDEH SALIMZADEH, FARAZ BISHEHSARI, PEJMAN KHOSRAVI, MARYAM KHANEHZAD, SIAVOSH NASSERI MOGHADDAM, SHAHIN MERAT, REZA ANSARI, HOMAYOON VAHEDI, BIJAN SHAHBAZKHANI, MEHDI SABERIFIROOZI, MASOUD SOTOUDEH, and REZA MALEKZADEH, “CHARACTERISTICS OF COLORECTAL POLYPS AND CANCER, A RETROSPECTIVE REVIEW OF COLONOSCOPY DATA IN IRAN,” MIDDLE EAST JOURNAL OF DIGESTIVE DISEASES (MEJDD), vol. 6, no. 3, pp. 144–150, 2014, [Online]. Available: https://sid.ir/paper/319086/en

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