ORIGINAL ARTICLE
The significance of response shi in sinus surgery outcomes Jack J. Liu, MD and Greg E. Davis, MD
Background: Functional endoscopic sinus surgery (FESS) aims to improve quality-of-life (QOL). Perception of QOL can change according to one’s current medical or emotional state. This is known as response shi. It can be measured by the “then-test,” which asks patients to report pretreatment symptoms aer receiving treatment. Patients oen do not understand their disease burden until their symptoms are improved. This study aims to assess the significance of response shi in FESS outcomes. Methods: This was a prospective cohort study that included chronic rhinosinusitis patients from 2010 to 2012 who completed a preoperative 20-item Sino-Nasal Outcome Test (SNOT-20). Two SNOT-20 forms were mailed approximately 6 months aer surgery. Patients completed 1 SNOT-20 according to their preoperative symptoms in light of their current state of health (“then-test”) and the other based on postoperative symptoms. The preoperative and postoperative SNOT-20 difference represented the treatment effect and the preoperative SNOT-20 and then-test difference represented the response shi.
0.01), which signifies a QOL improvement. Mean response shi was +0.42 (p = 0.01). This positive value signifies that patients felt they were worse off preoperatively, likely due to a positive change in health status. The actual treatment effect is the sum of the measured treatment effect and response shi, which was −1.38. Conclusion: Response shi exists and can be quantified. The actual treatment effect was more profound when response shi was included. Therefore, future studies should account for this oen unmeasured, potential change in C 2014 ARS-AAOA, LLC. QOL.
Key Words: chronic rhinosinusitis; endoscopic sinus surgery; quality of life; response shi; SNOT-22; then-test How to Cite this Article: Liu JJ, Davis GE. The significance of response shi in sinus surgery outcomes. Int Forum Allergy Rhinol. 2014;XX:1-5.
Results: Thirty-two completed responses were obtained. Using a 0 to 5 scale, mean treatment effect was −0.96 (p
The significance of response shi in sinus surgery outcomes Jack J. Liu, MD and Greg E. Davis, MD
Background: Functional endoscopic sinus surgery (FESS) aims to improve quality-of-life (QOL). Perception of QOL can change according to one’s current medical or emotional state. This is known as response shi. It can be measured by the “then-test,” which asks patients to report pretreatment symptoms aer receiving treatment. Patients oen do not understand their disease burden until their symptoms are improved. This study aims to assess the significance of response shi in FESS outcomes. Methods: This was a prospective cohort study that included chronic rhinosinusitis patients from 2010 to 2012 who completed a preoperative 20-item Sino-Nasal Outcome Test (SNOT-20). Two SNOT-20 forms were mailed approximately 6 months aer surgery. Patients completed 1 SNOT-20 according to their preoperative symptoms in light of their current state of health (“then-test”) and the other based on postoperative symptoms. The preoperative and postoperative SNOT-20 difference represented the treatment effect and the preoperative SNOT-20 and then-test difference represented the response shi.
0.01), which signifies a QOL improvement. Mean response shi was +0.42 (p = 0.01). This positive value signifies that patients felt they were worse off preoperatively, likely due to a positive change in health status. The actual treatment effect is the sum of the measured treatment effect and response shi, which was −1.38. Conclusion: Response shi exists and can be quantified. The actual treatment effect was more profound when response shi was included. Therefore, future studies should account for this oen unmeasured, potential change in C 2014 ARS-AAOA, LLC. QOL.
Key Words: chronic rhinosinusitis; endoscopic sinus surgery; quality of life; response shi; SNOT-22; then-test How to Cite this Article: Liu JJ, Davis GE. The significance of response shi in sinus surgery outcomes. Int Forum Allergy Rhinol. 2014;XX:1-5.
Results: Thirty-two completed responses were obtained. Using a 0 to 5 scale, mean treatment effect was −0.96 (p
