With input from SIH patients, their relatives and caregivers, and medical providers, we constructed a novel survey instrument for SIH. We then distributed the "SIH Impact Inventory" to adult patients with confirmed (n=62) and clinically suspected (n=36) SIH evaluated from 2016 to 2022. Participants completed the survey online using REDCap V 11.2.2.
98 of 234 participants (42%) meeting the inclusion criteria completed the questionnaires. Mean age was 50.6 years (SD 15.7), predominantly female (69.4%), White (90.8%) and married (69.4%). Median time to SIH diagnosis was 2.0 years (IQR: 0.5-4.8), and 75.5% were initially misdiagnosed. 96 of 98 patients received blood patches, of which 44.7% of the cohort experienced symptom relief for one month, and 21.0% had their SIH completely resolved. Of those currently employed, 95.2% (60/63) agreed that SIH affected their ability to work, and 65.1% (41/63) ultimately had to stop working. All 18 students in our cohort agreed SIH impacted their ability to attend school or complete coursework. 35.7% believed SIH frequently affected their driving ability, and 84.7% had difficulty riding in a car. SIH had a financial impact on 65.3% of our cohort, specifically medical expenses (98.4%) and travel for healthcare (65.6%). 45.9% agreed or strongly agreed that SIH affected their marriage or ability to find a romantic partner. For those with children, 68.8% (48/70) reported impact on their parenting ability.