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Purpose: The Gynecologic Cancer Lymphedema Questionnaire (GCLQ) is an established patient-reported outcome measure for lower extremity lymphedema (LEL) in gynecologic oncology. We aimed to validate the GCLQ in German language (GCLQ-GER) for lymphedema detection in German-speaking patients and also investigated real-world patterns of lymphedema treatment.
Methods: The GCLQ was translated from English into German in accordance with the standards of a professional translation process. Subsequently, the questionnaire was administered in a prospective observational study including 102 patients who had undergone lymph node dissection (LND) within gynecologic cancer surgery. Various test quality criteria were calculated for the GCLQ-GER. As gold standard of testing methods, patients were clinically evaluated for LEL, and limb volume measurements were taken. Further data for lymphedema treatment were collected in patients with lymphedema diagnosis.
Results: Patients with LEL had increased GCLQ-GER total scores (mean 7.27) compared to patients without LEL (mean 1.81), p < 0.001. High diagnostic accuracy was indicated by the large area under the receiver operating characteristics curve (AUC) of 0.874 (95% CI 0.802-0.946). Based on sensitivity and specificity values ≥ 79.0%, the GCLQ total score ≥ 4 was determined as the optimal cut-off value to identify LEL. Excellent internal consistency was demonstrated by Cronbach's alpha of 0.876. The clinical examination revealed a LEL prevalence of 48.0% (n = 49), and 85.7% (n = 42) of these patients received treatment.
Conclusion: The GCLQ-GER is a valid and feasible patient-reported outcome measure for lymphedema detection in German-speaking gynecologic cancer survivors. Its clinical introduction could improve secondary prevention of lymphedema and real-world treatment.
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| http://dx.doi.org/10.1007/s00404-024-07886-4 | DOI Listing |
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