Related Experiment Video

Updated: Jun 5, 2026

Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia
03:05

Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia

Published on: February 16, 2024

Hypertrophic pyloric stenosis: predicting the resolution of biochemical abnormalities

David J Wilkinson1, Richard A Chapman, Anthony Owen

  • 1Alder Hey Children's Hospital, Liverpool, UK. d.wilkinson1@mac.com

Pediatric Surgery International
|January 12, 2011
PubMed

Insights

The degree of initial biochemical abnormality in infants with hypertrophic pyloric stenosis (HPS) predicts how quickly their electrolytes and acid-base balance will normalize after surgery. This aids in managing HPS treatment.

Area of Science:

  • Pediatric Surgery
  • Neonatal Metabolism
  • Clinical Biochemistry

Background:

  • Infantile hypertrophic pyloric stenosis (HPS) is a common surgical condition in infants.
  • HPS frequently causes significant electrolyte and acid-base disturbances requiring correction.
  • Prior research has explored HPS-related biochemical derangements but not their resolution rates.

Purpose of the Study:

  • To investigate the relationship between the severity of biochemical derangement in HPS and the time required for correction.
  • To determine if initial biochemical abnormalities can predict the rate of recovery in infants with HPS.

Main Methods:

  • Retrospective analysis of 151 infants undergoing pyloromyotomy over three years.
  • Included 105 infants who adhered to the unit's fluid protocol and had at least three serial biochemical tests.
  • Correlated the rate of correction for various biochemical markers (electrolytes, acid-base) with the initial degree of derangement and time.

Main Results:

  • A statistically significant correlation (P < 0.01) was observed between the initial severity of derangement and the correction rate for chloride, urea, and base excess.
  • This relationship allows for the prediction of the time needed to correct biochemical abnormalities before surgical intervention.
  • Identified key biochemical markers whose correction rate is predictable based on initial levels.

Conclusions:

  • The degree of initial biochemical derangement in HPS is a significant predictor of the time to biochemical correction.
  • This predictive model can assist clinicians in managing fluid therapy and anticipating recovery timelines.
  • The analytical method may be valuable for comparing the efficacy of different fluid management strategies in HPS.
Abstract

Related Concept Videos

Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies01:28

Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies

Peptic ulcer disease (PUD) presents with diverse symptoms depending on the location and severity of the ulcer. Clinical manifestations of peptic ulcer include dull pain and a burning sensation in the mid-epigastric region.
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
Pyloric Obstruction01:11

Pyloric Obstruction

Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...
Peptic Ulcer Disease V: Surgical Management and Nursing Care01:25

Peptic Ulcer Disease V: Surgical Management and Nursing Care

Surgical management and nursing care are crucial in treating Peptic Ulcer Disease (PUD). Here is an organized and enhanced overview of the surgical interventions and the associated nursing care for PUD:
Surgical Interventions for Peptic Ulcer Disease
Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy01:16

Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy

Helicobacter pylori, a resilient gram-negative bacterium, can thrive in the stomach's harsh, acidic environment. Infection with H. pylori leads to a cascade of events within the stomach lining. One of the critical disruptions caused by this bacterium is the interference with somatostatin production, a hormone responsible for regulating acid secretion. This interference tips the balance, escalating acid secretion and diminishing bicarbonate levels. This imbalance compromises the defensive...
Gastritis II: Pathophysiology01:26

Gastritis II: Pathophysiology

The pathophysiology of gastritis begins with the colonization of the stomach lining by Helicobacter pylori (H. pylori). This bacterium spreads mainly via the oral-oral route through saliva or shared utensils, and can also be transmitted in overcrowded or unhygienic environments through contaminated water, despite its brief survival outside the body.ColonizationOnce ingested, H. pylori enters the stomach and begins colonization by navigating through the mucus layer lining the stomach wall. It...
Pathophysiology of Peptic Ulcer Disease: Mucosal Defense Factors01:24

Pathophysiology of Peptic Ulcer Disease: Mucosal Defense Factors

Peptic ulcer disease, commonly called PUD, represents a multifaceted condition characterized by disruptions in the lining of the gastrointestinal (GI)  tract. Central to the protection of the gastrointestinal lining is the mucosal-bicarbonate barrier. This physiological defense mechanism is a formidable shield against the corrosive effects of gastric acid and pepsin secretion in the stomach. Its role is pivotal in maintaining the structural integrity of the stomach's inner lining. Bicarbonate,...