Intermittent self catheterization is by far the most appealing therapy in order to achieve a complete bladder emptying when a patient present some post void residual, or urinary retention due to neurological disease.
Indeed, it's a self-administered procedure which not only improves quality of life, but also decreases morbidity and mortality related to neurogenic bladder.
There is a need for tools in order to assess patient's satisfaction, difficulties and acceptance of this technique.
4 questionnaires available in French have been developed in order to assess these issues.

The aim of this study was to translate, culturally adapt, and validate a Dutch version of the Intermittent Catheterization Satisfaction Questionnaire (InCaSaQ), Intermittent Catheterization Acceptance Test (ICAT), Intermittent Self Catheterization Questionnaire (ICSQ) and Intermittent Catheterization Difficulty Questionnaire (ICDQ).

(1) Translation and cross cultural adaptation of the InCaSaQ, ICAT, ICSQ and ICDQ was performed according to the standardized guidelines.
(2) The test of the pre-final version was performed by a group of bilingual lay people by comparing the original version of the questionnaires and the back translated one, assessing the comparability of language and comparability of interpretation (reference 1). (3) Problematic issues were reviewed for correction.
(4) Reliability examined by intraclass correlation coefficients (ICC) statistics and Cronbach alpha analysis.

Pre-test by 45 raters who are fluent in the source language lead to an adapted and improved version of the translated questionnaires. 
Fifty native Dutch speaking patients performing ISC for more than 6 months due to a neurogenic bladder were prospectively included.
InCaSaQ, ICAT, ICSQ and ICDQ showed good internal consistency (α respectively 0.86, 0.864, 0.857 and 0.896) and reproductibility (Intraclass correlation coefficients respectively 0.78, 0.77, 0.81 and 0.89).

InCaSaQ, ICAT, ICSQ and ICDQ were translated and culturally adapted for the use in Dutch patients performing ISC because of a neurogenic bladder. This validation study showed good measurement properties of the Dutch version of the questionnaires.

The translated questionnaires are reliable and valid, allowing self-reported assessment of satisfaction, acceptance, difficulties and QoL reated to ISC in Dutch patients with neurogenic bladder.

Sperber AD. Translation and validation of study instruments for cross-cultural research. Gastroenterology. 2004;126(1):S124-S128.