Related Experiment Video
Updated: Jun 11, 2026
07:33
A Mouse Model of Intestinal Partial Obstruction
Published on: March 5, 2018
Infantile hypertrophic pyloric stenosis: does size really matter?
Peter Hsu1, Jan Klimek, Ralph Nanan
1Discipline of Paediatrics, Sydney Medical School-Nepean, The University of Sydney, Kingswood, New South Wales, Australia.
Journal of Paediatrics and Child Health
|July 6, 2010
Summary
Pyloric stenosis can occur outside the typical age range and in premature infants. Ultrasound is a reliable diagnostic tool for infantile hypertrophic pyloric stenosis, but measurements require interpretation alongside dynamic features.
Area of Science:
- Pediatric Surgery
- Diagnostic Imaging
- Neonatology
Background:
- Infantile hypertrophic pyloric stenosis (IHPS) is a common condition.
- Typical onset is between 2-8 weeks of age.
- Atypical presentations in premature infants or older infants are less common.
Purpose of the Study:
- To describe atypical cases of IHPS.
- To evaluate the role of ultrasound in diagnosing IHPS in varied presentations.
- To emphasize the importance of dynamic ultrasound features.
Main Methods:
- Case series presentation.
- Ultrasound examination of the pylorus.
- Correlation of imaging findings with clinical presentation.
Main Results:
- Three cases of IHPS are presented: premature twins and a 5.5-month-old infant.
- Ultrasound demonstrated pyloric stenosis in all cases, despite variations in infant size and weight.
- Pyloric measurements alone were insufficient; dynamic features were crucial for diagnosis.
Conclusions:
- IHPS can occur in premature infants and outside the typical age range.
- Ultrasound is a reliable diagnostic modality for IHPS across different presentations.
- Interpretation of pyloric measurements should integrate dynamic ultrasound findings for accurate diagnosis.
More Related Videos
Related Concept Videos
01:11Pyloric 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...
01:30Esophageal Strictures-I: Introduction
Esophageal strictures involve abnormal narrowing or tightening of the esophagus. They vary in length and severity, ranging from mild constriction to complete obstruction, and are classified as benign (noncancerous) or malignant (cancerous).
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...
01:26Esophageal Strictures-II: Clinical Features and Management
Patients with esophageal strictures often experience a range of symptoms. Initially, they may have difficulty swallowing solid foods, which can progress to include liquids. Additional symptoms may involve chest pain or discomfort, regurgitating food and fluids, heartburn, unintentional weight loss, coughing or choking during meals, and hoarseness.
Healthcare providers should gather a comprehensive medical history and conduct a physical examination for diagnosis. If esophageal stricture is...
Healthcare providers should gather a comprehensive medical history and conduct a physical examination for diagnosis. If esophageal stricture is...
01:25Peptic 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
Surgical Interventions for Peptic Ulcer Disease
01:26Aneurysm III: Interprofessional Care
Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
01:23Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...