Acquired pyloric stenosis resulting in hypokalaemic, hyperchloraemic normal anion gap metabolic acidosis. Persistent vomiting in an adult: cause and effect

Acute Kidney Injury with Severe Metabolic Alkalosis Caused by Habitual Vomiting in an Alcohol Abuser with Pyloric Stenosis

A 47-year-old man was complaining of consciousness disorder. He had acute kidney injury, hypokalemia, and severe metabolic alkalosis. Initial treatment using intravenous infusion of 0.9% saline and potassium chloride improved his consciousness. It was clarified that he was a severe alcohol abuser who habitually self-vomited. We diagnosed him with volume depletion and pseudo-Bartter's syndrome due to loss of chloride by habitual vomiting. Gastrointestinal endoscopy demonstrated pyloric stenosis, which was ameliorated by Helicobacter pylori eradication therapy. We should consider volume depletion and pseudo-Bartter's syndrome as differential diagnoses when we encounter patients with acute kidney injury and severe metabolic alkalosis.

Gastric outlet obstruction due to peptic ulcer disease in a 5 years-old female child. Case report. June 23, 2022

INTRODUCTION AND IMPORTANCE

Gastric outlet obstruction (GOO) is a spectrum of congenital and acquired conditions that prevent the passage of gastric contents beyond the proximal duodenum. Peptic ulcer disease (PUD), which causes GOO, is extremely rare in children, with an incidence of 1 per 100,000 live births. Because of the rarity of the disease in children, we report a case of GOO due to PUD in a 5-year-old child.

CASE PRESENTATION

We report a case of an acquired GOO due to PUD in a 5-year-old female child who presented with vomiting, weight loss, and epigastric pain of 3 months' duration. Her diagnosis of GOO secondary to PUD was made by upper gastrointestinal (UGI) endoscopy despite a negative stool H. pylori antigen. She was managed with proton pump inhibitor (PPI), which results in improvement of signs and symptoms. She has been on follow-up for the last 6 months and has remained asymptomatic.

CLINICAL DISCUSSION

H. pylori-positive GOO is successfully treated with PPI and antibiotic therapy. The role of H. pylori therapy in PUD-related GOO is less clear, although eradication is warranted as a primary intervention.

CONCLUSION

GOO secondary to PUD may occur in the absence of Helicobacter pylori infection (HPI). Our patient demonstrated response to medical management in the acute phase of ulceration.

Recovery from severe metabolic alkalosis with acute kidney injury due to gastric cancer: a case report

Objective: Most cases of severe metabolic alkalosis have many causes that may result in renal failure and death. Therefore, these should be treated promptly for successful recovery. Patient: A 61-year-old man was hospitalized due to an acute kidney injury (creatinine level of 4.36 mg/dL) after a 3-month history of anorexia and recurrent vomiting. He had been treated for tuberculosis in the past. Results: Blood gas analysis revealed severe metabolic alkalosis with pH=7.66, HCO₃=94 mmol/L, and pCO₂=82.0 mmHg. Routine biochemical examination revealed severe hypokalemia (K 2.9 mEq/L) that was associated with prolonged QTc interval (0.52 seconds) on the electrocardiogram. Gastrofiberscopic examination also revealed severe stenosis and ulcerated scarring of the gastric pylorus and severe esophagitis. Intravenous hydration and correction of hypokalemia improved renal function and resolved metabolic alkalosis. An investigation that was repeated after 6 days revealed a creatinine level of 1.58 mg/dL, pH=7.47, HCO₃=23.4 mmol/L, K=3.6 mEq/L, and QTc of 0.45 seconds. The patient underwent gastrectomy and adenocarcinoma was observed. Conclusion: We described a resolved case of severe metabolic alkalosis and acute kidney injury in a rural medical setting following conservative management.