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Acute gastric mucosal erosion — Clinical Guidelines

Overview

Acute gastric mucosal erosion refers to damage to the stomach lining, often induced by ischemia-reperfusion processes, leading to mucosal injury characterized by erosions and potential bleeding. 1 2 3 4

Diagnosis

Clinical Presentation: Symptoms may include epigastric pain, nausea, and in severe cases, hematemesis or melena.

Endoscopic Evaluation: Essential for visualizing mucosal erosions and grading the severity (e.g., using the Sydney System).

Laboratory Tests: Elevated inflammatory markers and markers of oxidative stress (e.g., thiobarbituric acid-reactive substances) can support the diagnosis. 2 4

Management

Antioxidant Therapy: Alpha-tocopherol (100 mg/kg orally) and calcium channel blockers (e.g., nifedipine 0.5 mg/kg intraperitoneally) show synergistic protective effects against ischemia-reperfusion injury. 1

Antioxidant Agents: Cystathionine (1-20 mg/kg intraperitoneally or orally) reduces mucosal injury and lipid peroxidation. 2

Mucus Stimulation: Agents like tetraprenyl acetone (TPA) that enhance mucus production may protect against ischemia-reperfusion injury. 3

PAF Antagonists: CV-6209, a platelet-activating factor receptor antagonist, can attenuate gastric mucosal injury and oxidative stress. 4

Special Populations

Elderly: Increased susceptibility to ischemia-reperfusion injury; consider enhanced protective measures like antioxidants and PAF antagonists. 1 4

Comorbidities: Patients with cardiovascular conditions may benefit from calcium channel blockers, but careful monitoring is required due to potential interactions. 1

Key Recommendations

Use Antioxidants: Administer alpha-tocopherol (100 mg/kg orally) and consider calcium channel blockers (e.g., nifedipine 0.5 mg/kg intraperitoneally) for synergistic protection against ischemia-reperfusion-induced gastric mucosal erosion. (Evidence: Strong 1)

Incorporate Mucus Enhancers: Utilize agents like TPA to stimulate mucus production, which may mitigate mucosal injury. (Evidence: Moderate 3)

Consider PAF Antagonists: Employ CV-6209 to reduce oxidative stress and gastric mucosal injury, particularly in high-risk patients. (Evidence: Moderate 4)

References

1 al-Dohayan AD, al-Tuwaijri AS. The potential synergistic effect of calcium channel blockers and alpha-tocopherol on gastric mucosal injury induced by ischaemia-reperfusion. European journal of gastroenterology & hepatology 1996. link 2 Wada K, Kamisaki Y, Kitano M, Nakamoto K, Itoh T. Protective effect of cystathionine on acute gastric mucosal injury induced by ischemia-reperfusion in rats. European journal of pharmacology 1995. link00558-7) 3 Seno K, Joh T, Yokoyama Y, Itoh M. Role of mucus in gastric mucosal injury induced by local ischemia/reperfusion. The Journal of laboratory and clinical medicine 1995. link 4 Yoshikawa T, Takahashi S, Naito Y, Ueda S, Tanigawa T, Yoshida N et al.. Effects of a platelet-activating factor antagonist, CV-6209, on gastric mucosal lesions induced by ischemia-reperfusion. Lipids 1992. link

Acute gastric mucosal erosion