Since the discovery of Helicobacter pylori in the early 1980s, its role as a major pathogenic factor in peptic ulcer disease has been well established. Therapeutic regimens aiming to eradicate the bacterium have been shown to be highly effective and are strongly recommended in the treatment of patients with peptic ulcer disease.1 With classic bismuth salt based triple therapy, combining bismuth with two antibiotics, poor compliance is often observed resulting from a high incidence of side-effects. 2 In search for therapeutic approaches leading to fewer side-effects and compliance problems, regimens combining antibiotics with proton pump inhibitors have been under investigation. The latter are not only used to relieve symptoms but also to provide an optimal environment for the action of the antibiotics. 3As reported by several authors, a short-term therapy with omeprazole in combination with clarithromycin and either amoxycillin or metronidazole can achieve eradication rates of above 90%. 4±6 These regimens were
Summary: Navicular disease (also referred to as palmar foot syndrome or navicular syndrome, although not completely the same) causes lameness in many horses of all activity groups.The objective of this study was to compare clodronate efficacy at improving lameness grade in horses with clinical signs of navicular disease to that of horses given placebo. A randomized, multi-center, double-blinded clinical field study was conducted on 146 horses with forelimb lameness due to navicular disease. Navicular disease was confirmed by lameness examination (with diagnostic nerve blocks) and radiography of the affected distal forelimb(s). At study initiation, treated horses received 1.4 mg/kg clodronate disodium IM, and control (placebo) horses received a corresponding IM volume of 0.9 % saline. Primary effectiveness was evaluated at Day 56 using a lameness grading scale, with positive response defined as improvement by at least 1 grade in the limb with the most apparent lameness, with no worsening of the lameness grade (compared to baseline) in the contralateral forelimb. Positive response rates at Days 28 and 180 were also recorded. On Day 56, 75 % of horses in the clodronate group were considered showing a positive response, versus only 3 % in the placebo group (p = 0.003). Of the 86 horses treated with clodronate, 8 horses had an improvement of 3 lameness grades, 45 horses improved by 2 lameness grades and 16 horses improved by one lameness grade. The clodronate positive response rate remained high through Day 180 (65 %). Adverse events (primarily abdominal pain) were generally few, mild, and transient. In this study, clodronate disodium was demonstrated to be safe and effective in reducing the clinical signs of lameness associated with navicular syndrome.
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