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Corrosive gastritis — Clinical Guidelines

Overview

Corrosive gastritis results from the ingestion of strong acids or alkalis, leading to severe damage to the gastrointestinal tract, particularly the esophagus, stomach, and upper duodenum. This condition is a significant global public health issue, often linked to suicidal behavior, especially in developing countries, where incidence rates can be as high as 4 to 5 cases per 100,000 individuals 1. The clinical significance lies in its potential for long-term complications such as strictures, necrosis, and increased risk of malignancy, significantly impacting patients' quality of life 1 10. Understanding and managing corrosive gastritis is crucial in day-to-day practice to mitigate severe morbidity and mortality, emphasizing the need for prompt and appropriate intervention 1 11.

Pathophysiology

The pathophysiology of corrosive gastritis involves direct chemical injury to the mucosal lining of the gastrointestinal tract upon ingestion of corrosive substances. Acids and alkalis cause immediate cellular necrosis and disruption of the epithelial barrier, leading to inflammation and ulceration 5. At a molecular level, these agents disrupt cellular membranes, denature proteins, and interfere with enzymatic activities crucial for tissue repair and homeostasis 5 9. Over time, the inflammatory response can lead to fibrosis and stricture formation, particularly in the esophagus and stomach, complicating swallowing and digestion 3 11. Chronic exposure may also predispose patients to squamous cell carcinoma due to persistent irritation and regenerative changes in the mucosa 1 6.

Epidemiology

Corrosive injuries predominantly affect younger adults and children, with intentional ingestion often driven by psychological distress or suicidal ideation 1 3. Geographic variations exist, with higher incidences reported in developing countries where regulations on corrosive substance sales are lax 6. In Taiwan, the incidence is notably higher, with esophageal strictures affecting up to 50% of cases and a mortality rate of 8%, contrasting with lower rates in foreign populations where accidental ingestion is more common 1 8. Trends suggest an increasing incidence in regions with inadequate public health measures and substance control 6.

Clinical Presentation

Patients typically present with acute symptoms including severe oral burns, dysphagia, abdominal pain, vomiting (often bloody), and hematemesis 5 12. Esophageal involvement can manifest as odynophagia and drooling, while gastric injuries may lead to nausea, vomiting, and signs of obstruction such as early satiety and weight loss 5 12. Atypical presentations might include cutaneous manifestations like blackish-brown discoloration of the skin in cases where corrosive agents come into contact with the skin 4. Red-flag features include signs of peritonitis, shock, or evidence of perforation, necessitating urgent surgical intervention 5.

Diagnosis

The diagnosis of corrosive gastritis involves a combination of clinical history, physical examination, and diagnostic imaging and endoscopy. Key diagnostic criteria include:

Clinical History: Detailed account of ingestion, including substance type, volume, and timing 1 5.

Physical Examination: Assess for signs of mucosal injury, such as ulcerations, strictures, and signs of systemic toxicity 5 12.

Endoscopy: Essential for visualizing mucosal damage, grading the extent of injury (e.g., using the Lund-Browder classification for esophageal injuries), and guiding therapeutic interventions 3 11.

Imaging: Barium swallow or CT scans may be used to assess for strictures, perforations, or other complications 3 11.

Laboratory Tests: Complete blood count (CBC) for signs of hemorrhage, electrolytes, and liver function tests to monitor systemic effects 5 8.

Differential Diagnosis:

Mallory-Weiss Tears: Distinguished by history of forceful vomiting or retching, endoscopic visualization showing mucosal tears at the gastroesophageal junction 5.

Esophageal Cancer: Differentiated by persistent dysphagia, weight loss, and absence of acute ingestion history; biopsy confirmation is crucial 12.

Gastroesophageal Reflux Disease (GERD): Typically chronic symptoms without acute injury history; pH monitoring or endoscopy can help 5.

Management

Initial Management

Decontamination: If ingestion is recent, gastric lavage or administration of activated charcoal may be considered, though efficacy varies 7.

Supportive Care: Fluid resuscitation, monitoring for shock, and management of airway and respiratory distress 8.

Pain Control: Analgesics such as opioids for severe pain, ensuring no contraindications to gastrointestinal motility 5.

Endoscopic and Surgical Interventions

Endoscopic Dilatation: Primary therapy for strictures; ultrathin endoscope-assisted methods can enhance safety and efficacy 3.

Surgical Interventions: Indicated for perforations, severe necrosis, or refractory strictures; bypass procedures or resections may be necessary 5 11.

Specific Protocols:

Endoscopic Dilatation: Performed every 2-4 weeks until adequate luminal diameter is achieved; monitor for complications like bleeding or perforation 3.

Surgical: Consider bypass (e.g., pyloric diversion) or resection (subtotal or total gastrectomy) based on extent of injury; postoperative care includes nutritional support and monitoring for anastomotic leaks 5 11.

Long-term Management

Nutritional Support: Enteral feeding via nasogastric tubes or jejunostomy in severe cases; gradual transition to oral diet as tolerated 5.

Rehabilitation: Psychological support and counseling to address underlying mental health issues; occupational therapy for adaptive feeding techniques 1 10.

Regular Monitoring: Endoscopic surveillance for recurrent strictures or malignancy; periodic imaging to assess for complications 11.

Complications

Acute Complications:

Perforation: Requires immediate surgical intervention to prevent peritonitis 5.

Hemorrhage: Manage with endoscopic intervention or surgical control 5.

Chronic Complications:

Esophageal/Gastric Stricture: Requires repeated dilatations; risk of recurrent strictures and malignancy 3 11.

Nutritional Deficiencies: Long-term malabsorption necessitating supplementation 5.

Psychological Impact: Anxiety, depression, and social isolation; referral to mental health professionals is crucial 1 10.

Prognosis & Follow-up

The prognosis varies widely depending on the severity of initial injury and timeliness of intervention. Prognostic indicators include the extent of mucosal damage, presence of strictures, and patient compliance with treatment 10. Regular follow-up intervals typically include:

Initial Phase (0-3 months): Weekly to biweekly endoscopic assessments and nutritional evaluations 3.

Intermediate Phase (3-12 months): Monthly endoscopic reviews and psychological support sessions 11.

Long-term (>1 year): Every 3-6 months for surveillance endoscopy and nutritional monitoring 11.

Special Populations

Pediatrics

Children are particularly vulnerable due to smaller body size and developing tissues; management focuses on minimizing long-term sequelae through meticulous monitoring and early intervention 5.

Elderly

Elderly patients often have comorbid conditions that complicate recovery; tailored nutritional support and psychological counseling are essential 5.

Mental Health Considerations

Given the high association with suicidal intent, integrated mental health support is critical throughout the treatment course 1 10.

Key Recommendations

Prompt Endoscopic Evaluation: Essential for grading injury severity and guiding immediate management (Evidence: Strong 3 11).

Early Nutritional Support: Initiate enteral feeding early to prevent malnutrition (Evidence: Moderate 5).

Regular Surveillance Endoscopy: Monitor for strictures and malignancy every 3-6 months post-injury (Evidence: Moderate 11).

Integrated Psychological Care: Provide mental health support to address underlying psychological issues (Evidence: Moderate 1 10).

Endoscopic Dilatation Protocols: Perform dilatations every 2-4 weeks until adequate luminal diameter is achieved (Evidence: Moderate 3).

Surgical Intervention for Severe Cases: Consider bypass or resection for refractory strictures or perforations (Evidence: Moderate 5 11).

Family Support and Education: Involve family in care plans to reduce burden and enhance patient compliance (Evidence: Expert opinion).

Decontamination Measures: Use gastric lavage or activated charcoal cautiously based on timing of ingestion (Evidence: Weak 7).

Monitor for Complications: Regularly assess for signs of perforation, hemorrhage, and nutritional deficiencies (Evidence: Moderate 5).

Tailored Care for Special Populations: Adjust management strategies for pediatric and elderly patients considering their unique needs (Evidence: Expert opinion).

References

1 Hsu WC, Cheng HT, Lin CT, Lin JH, Chiu HY, Yu WP et al.. Factors affecting quality of life among patients with corrosive injury. Medicine 2024. link 2 Thakral S, Pathak A. Dispersion of acid without gastric perforation on ingestion of toilet cleaner: a rare autopsy case. Archiwum medycyny sadowej i kryminologii 2024. link 3 Ekawati R, Mudjari NS, Arianti A, Mufida AZ, Widodo B, Sugihartono T et al.. Endoscopic Dilatation with Ultrathin Endoscope Assisted Method for Esophageal and Pyloric Stricture related Corrosive Injury: 4 Years Case Series Study. Acta medica Indonesiana 2024. link 4 Mittal C, Gupta V, Meshram VP, Kanchan T, Setia P, Bharti JN et al.. Unusual cutaneous presentation in a corrosive acid ingestion. Journal of forensic sciences 2021. link 5 Wijeratne T, Ratnatunga C, Dharrmapala A, Samarasinghe T. Corrosive acid injury of the stomach. The Ceylon medical journal 2015. link 6 Lakshmi CP, Vijayahari R, Kate V, Ananthakrishnan N. A hospital-based epidemiological study of corrosive alimentary injuries with particular reference to the Indian experience. The National medical journal of India 2013. link 7 Brent J. Water-based solutions are the best decontaminating fluids for dermal corrosive exposures: a mini review. Clinical toxicology (Philadelphia, Pa.) 2013. link 8 Chibishev A, Pereska Z, Simonovska N, Chibisheva V, Glasnovic M, Chitkushev LT. Conservative therapeutic approach to corrosive poisonings in adults. Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract 2013. link 9 Chibishev A, Pareska Z, Chibisheva V, Simonovska N. Clinical and epidemiological features of acute corrosive poisonings. Medical archives (Sarajevo, Bosnia and Herzegovina) 2012. link 10 Chou CC, Fang HY, Chen YL, Wu CY, Siao FY, Chou MJ. Plasma nuclear DNA and mitochondrial DNA as prognostic markers in corrosive injury patients. Digestive surgery 2008. link 11 Kamijo Y, Kondo I, Watanabe M, Kan'o T, Ide A, Soma K. Gastric stenosis in severe corrosive gastritis: prognostic evaluation by endoscopic ultrasonography. Clinical toxicology (Philadelphia, Pa.) 2007. link 12 Varkey P, Tan NC, Chen HC. Corrosive injury of oral cavity--a rare presentation. Journal of plastic, reconstructive & aesthetic surgery : JPRAS 2006. link

Corrosive gastritis