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. 2021 Aug;36(8):1805-1810.
doi: 10.1007/s00384-021-03903-z. Epub 2021 Mar 11.

The Italian version of the LARS score: cross-cultural adaptation and validation. An Italian Society of Surgical Oncology-Colorectal Cancer Network (SICO-CCN) collaborative study

Aridai Resendiz  1 , Giulia Martini  2 , Bruno Sensi  3 , Rossella Reddavid  1 , Giulia Marchiori  1 , Caterina Franco  1 , Marzia Franceschilli  3 , Natalia Imperio  2 , Giuseppe Sica  3 , Gaya Spolverato  2 , Maurizio Degiuli  4
Affiliations

The Italian version of the LARS score: cross-cultural adaptation and validation. An Italian Society of Surgical Oncology-Colorectal Cancer Network (SICO-CCN) collaborative study

Aridai Resendiz et al. Int J Colorectal Dis. 2021 Aug.

Abstract

Purpose: The LARS score is an internationally well-accepted questionnaire to assess low anterior resection syndrome, but currently there is no formally validated Italian version. The purpose of this study was to test the reliability and validity of the Italian version among Italian patients submitted to sphincter-sparing surgery for rectal cancer.

Methods: The English version of the LARS score was translated into Italian following the forward-and-back translation process. A total of 147 patients filled out our version. Among them, 40 patients answered the questionnaire twice for the test-retest reliability phase. The validity of the LARS score was tested using convergent and discriminant validity indicators by correlating the EORTC QLQ-C30 and QLQ-CR29 questionnaires. The LARS score capability to differentiate groups of patients with different demographic or clinical features was also assessed.

Results: The test-retest reliability was excellent in 87.5% of patients, remained in the same LARS category in both tests. The convergent validity phase showed a relevant relationship of the LARS score with the EORTC domains, which was significant for 7 of 15 EORTC QLQ-C30 subscales, and for 14 of 29 EORTC QLQ-CR29 subscales. The LARS score was able to discriminate patients who received radiotherapy (p = 0.0026), TME vs. PME (p = 0.0060), tumour site at < 10 cm from the anal verge (p = 0.0030) and history of protective stoma (p < 0.0001).

Conclusion: The Italian version of the LARS score is a valid and reliable tool for measuring LARS in Italian patients after SSS for rectal cancer.

Keywords: Bowel dysfunction; LARS; LARS score; Low anterior resection syndrome; Rectal cancer.

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