Quality of Life in Patients with Benign Non-Toxic Goiter After Surgical Intervention: A Systematic Review and Meta-Analysis.

Abstract

Prior studies evaluating health-related quality of life (HR-QoL) outcomes in patients undergoing surgery for benign non-toxic goiter have used different instruments and time points, leading to conflicting results. We sought to systematically review the differences in HR-QoL among patients with BNTG at baseline and 6months after surgery, using exclusively the ThyPRO questionnaire. A systematic search was performed using PubMed, Embase, Web of Science, Cochrane Central, CINAHL, and PsycINFO for papers reporting the assessment of HR-QoL utilizing ThyPRO. Data were meta-analyzed using a random-effects model, and pooled estimates were calculated using weighted mean differences (WMD) between baseline and 6months after surgery. We assessed the quality and risk of bias of the studies using the Robins-I tool and previously published minimally important change (MIC) values to assess clinical significance. Six papers met the predefined inclusion criteria, describing a total of 496 patients. Meta-analysis demonstrated improved QoL in all thirteen domains of ThyPRO six months post-surgical intervention compared to baseline. Specifically, the largest improvement in QoL was seen in the domains of overall QoL, WMD -25.84 (95% CI -29.70, -21.98, p < 0.001, I2 = 23%), goiter symptoms, 23.96 (95% CI -30.29, -17.64, p < 0.001, I2 = 91%), and tiredness, -16.20 (95% CI -19.23, -13.16, p < 0.001, I2 = 3%). The differences in scores 9 of 13 domains were clinically significant based on MIC. Disease-specific HR-QoL improved in all ThyPRO domains after surgery in patients with BNTG. Future studies of QoL in thyroid surgery patients will benefit from a standard questionnaire and improved reporting of covariates including complications to ensure comparability across studies.