ABSTRACT
BACKGROUND: Non-specific abdominal pain (NSAP) and acute appendicitis (AA) are the two most frequent diagnoses of acute abdomen in the emergency wards. The long-term morbidity, mortality and quality of life of the patients with NSAP compared to AA are unknown. METHODS: The study group consisted of 186 patients with acute NSAP compared to 147 patients with AA initially treated during 1985-1986. Medical history, social background, quality of life and abdominal symptoms were assessed with standardized questionnaires in both groups during 2006-2009. The patients who continued to have abdominal symptoms were invited to a check-up visit. RESULTS: During 1985-6, the NSAP group had more previous abdominal symptoms and operations than the AA group. Some 29% of patients with NSAP and 11% of patients with AA had still abdominal symptoms at long-term check-up (p < 0.0001). Chronic abdominal pain (38 vs 17) and peptic ulcer disease (18 vs 2) occurred more often in the NSAP group than in the controls, respectively (p = 0.001). After five years of follow-up, 11 patients in the NSAP group and 6 patients in the AA group had died (ns). During the twenty years of follow-up, mortality was higher (46/22, 25/15%) in the patients with NSAP than in controls (p = 0.013). Ischaemic heart disease was the leading cause of death in both groups (18 NSAP vs 5 AA, p = 0.017). The quality of life scores were comparable in both study groups. CONCLUSION: Over 70% of NSAP- and almost 90% of AA-patients were free of symptoms after 20 years of follow-up. Mortality was higher and various alimentary track diseases were more frequent in patients with NSAP than in AA.
