MARKERS OF SLOW-HEALING PEPTIC-ULCER IN THE ELDERLY - A STUDY ON 1,052 RANITIDINE-TREATED PATIENTS

Little is known about ulcer outcome in the elderly. The aims of the pr esent paper were to establish whether risk factors of slow-healing pep tic ulcer can be demonstrated in the elderly and whether clinical diff erences exist between ulcer patients whose age of onset of the disease was before or after 65 years old. The short-term open study, involvin g 1052 elderly patients (over 65 years) in 37 gastroenterology centers throughout Italy aimed to compare two schedules of ranitidine treatme nt: 150 mg twice daily versus 300 mg at bedtime. As nonsignificant dif ferences were found between these two schedules, the sample was consid ered as a whole. It included 319 gastric ulcer (GU) patients, 699 duod enal ulcer (DU) patients, and 34 concomitant GU and DU cases. Ninety-t hree patients dropped out of the trial; 79/294 GU, 138/635 DU, and 10/ 30 GU+DU were found still unhealed after four weeks and 20 GU, 15 DU, and 1 GU+DU remained so after eight weeks. Statistical analysis was pe rformed using likelihood-ratio and Pearson's chi-squared tests and Cox 's models. Univariate analysis showed that the indicators of slow-heal ing GU were ulcer size (P = 0.002) and persisting ulcer symptoms (P = 0.0001); indicators of slow-healing DU were ulcer size (P = 0.0001), p ersisting ulcer symptoms (P = 0.0001), alcohol (P = 0.0003), and NSAID (P = 0.0088) consumption. DU patients taking antiplatelet drugs have significantly better results after four weeks and worse results after eight weeks (P = 0.0352). Cox's models revealed that the persistence o f ulcer symptoms is the most important factor predicting unhealing ulc ers (GU, P = 0.0008; DU, P = 0.0002), while ulcer size is only importa nt for DU (P = 0.0215). Patients with ulcer disease onset before 65 ye ars of age were more frequently males; DU subjects were more frequentl y smokers, with a family history of ulcer and no NSAID consumption. In conclusion, persistence of ulcer symptoms and ulcer size are indicato rs of slow-healing ulcer in the elderly; in the case of DU, NSAID and alcohol consumption may be additional factors.