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KMID : 1141920230390050427
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Annals of Coloproctology
2023 Volume.39 No. 5 p.427 ~ p.434
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Risk factors associated with low anterior resection syndrome: a cross-sectional study
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See Liang Lim
Wan Zainira Wan Zain
Zalina Zahari
Andee Dzulkarnaen Zakaria
Mohd Nizam Md Hashim
Michael Pak-Kai Wong
Zaidi Zakaria
Rosnelifaizur Ramely
Ahmad Shanwani Mohamed Sidek
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Abstract
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Purpose : Oncological outcomes following rectal cancer surgery have improved significantly over recent decades with lower recurrences and longer overall survival. However, many of the patients experienced low anterior resection syndrome (LARS). This study identified the prevalence and risk factors associated with the development of LARS.
Methods : This cross-sectional study involved patients who were diagnosed with rectal cancer and had undergone sphincter-preserving low anterior resection from January 2011 to December 2020. Upon clinic follow-up, patients were asked to complete an interviewed based questionnaire (LARS score) designed to assess bowel dysfunction after rectal cancer surgery.
Results : Out of 76 patients, 25 patients (32.9%) had major LARS, 10 patients (13.2%) had minor LARS, and 41 patients (53.9%) had no LARS. The height of tumor from anal verge showed an association with the development of major LARS (P=0.039). Those patients with less than 8 cm tumor from anal verge had an increased risk of LARS by 3 times compared to those with 8 cm and above (adjusted odds ratio, 3.11; 95% confidence interval, 1.06?9.13).
Conclusion : Results from our study show that low tumor height was a significant risk factor that has a negative impact on bowel function after surgery. The high prevalence of LARS emphasizes the need for study regarding risk factors and the importance of understanding the pathophysiology of LARS, in order for us to improve patient bowel function and quality of life after rectal cancer surgery.
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KEYWORD
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Rectal neoplasms, Low anterior resection syndrome, Low anterior resection syndrome score, Tumor height, Functional outcome
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