Antireflux and paraesophageal hernia repair surgery is increasingly performed and there is an increased requirement for revision hiatus hernia surgery. There are no reports on the changes in types of failures and/or the variations in location of crural defects over time following primary surgery and limited reports on the outcomes of revision surgery. The aim of this study is to report the changes in types of hernia recurrence and location of crural defects following primary surgery, to test our hypothesis of the temporal events leading to hiatal recurrence and aid prevention. Quality of life scores following revision surgery are also reported, in one of the largest and longest follow-up series in revision hiatus surgery. Review of a single-surgeon database of all revision hiatal surgery between 1992 and 2015. The type of recurrence and the location of crural defect were noted intraoperatively. Recurrence was diagnosed on gastroscopy and/or contrast study. Quality of life outcomes were measured using Visick, dysphagia, atypical reflux symptoms, satisfaction scores, and Gastrointestinal Quality of Life Index (GIQLI). Two-hundred eighty four patients (126 male, 158 female), median age 60.8(48.2-69.1), underwent revision hiatal surgery. Median follow-up following primary surgery was 122.8(75.3-180.3) and 91.6(40.5-152.5) months after revision surgery. The most common type of hernia recurrence in the early period after primary surgery was 'telescope'(42.9%), but overall, fundoplication apparatus transhiatal migration was consistently the predominant type of recurrence at 1-3 years (54.3%), 3-5 years (42.5%), 5-10 years (45.1%), and >10 years (44.1%). The location of crural defects changed over duration following primary surgery as anteroposterior defects was most common in the early period (45.5% in <1 year) but decreased over time (30.3% at 1-3 years) while anterior defects increased in the long term with 35.9%, 40%, and 42.2% at 3-5 years, 5-10 years, and >10 years, respectively. Revision surgery intraoperative morbidity was 19.7%, mainly gastric (9.5%) and esophageal (2.1%) perforation. There was a 75% follow-up rate and recurrence following revision surgery was 15.4%(44/284) in unscreened population and 21%(44/212) in screened population. There was no difference in recurrence rate based on size of hiatus hernia at primary surgery, or at revision surgery. There were significant improvements in the Visick score (3.3 vs. 2.4), the modified Dakkak score (23.2 vs. 15.4), the atypical reflux symptom score (23.7 vs. 15.4), and satisfaction scores (0.9 vs. 2.2), but no difference in the various domains (symptom, physical, social, and medical) of the GIQLI scores following revision surgery. Revision hiatal surgery has higher intraoperative morbidity but may achieve adequate long-term satisfaction and quality of life. The most common type of early recurrence following primary surgery is telescoping, and overall is wrap herniation. Anterior crural defects may be strong contributor to late hiatus hernia recurrence. Symptom-s...
