The most common cause of gastric outlet obstruction in neonates and infants is hypertrophic pyloric stenosis. Pyloric web as a cause of gastric outlet obstruction is relatively rare in children and presents with non bilious vomiting, abdominal pain and failure to thrive. The onset of symptoms is usually late with nonspecific symptoms like vomiting and failure to thrive that seems to be due to n...

Congenital antral webs are quite rare and easily overlooked or misdiagnosed. We report the case of a five-year-old boy who presented with symptoms of gastric outlet obstruction for four years; his condition was misdiagnosed twice as pyloric ulcer. Detailed gastroscopy revealed a congenital antral web. The stricture was successfully treated with endoscopic balloon dilatation without surgery.

background: there are controversies regarding the usefulness of the pyloric drainage methods after esophagectomy as well as differences among various pyloric drainage techniques. therefore, we compared the outcome of pyloromyotomy, pylorus buginage, and no intervention methods on gastric emptying among patients undergone esophagectomy. materials and methods: in this randomized clinical trial, p...

Endoscopic submucosal dissection (ESD) has been widely accepted as a curative treatment for gastric neoplasm. Pyloric stenosis is a chronic complication that can be caused by ESD. The aim of this study is to clarify the risk factors and management for pyloric stenosis. From January 2004 to January 2014, a total of 126 patients who underwent ESD adjacent to pylorus were reviewed retrospectively....

(This section is meant for residents to check their understanding regarding a particular topic) QUESTIONS 1. Discuss the epidemiology of pyloric atresia. 2. Describe the etiology of pyloric atresia. 3. What anomalies are associated with pyloric atresia? 4. Discuss the genetics of pyloric atresia. 5. How can pyloric atresia be antenatally diag-nosed? 6. What are clinical features of pyloric atre...

Cardiac sac network activity (cycle period tens of seconds to minutes) has long been known to alter pyloric network activity (cycle period approximately 1 s), but these effects have not been quantified. Some pyloric muscles extract cardiac sac timed variations in pyloric motor neuron firing, and consequently produce cardiac sac timed movements even though no cardiac sac neurons innervate them. ...

Infantile hypertrophic pyloric stenosis (IHPS) is a common cause of gastric outlet obstruction in infant. The prevalence of IHPS ranges from 1.5 to 4.0 in 1000 live birth1. But the incidence of IHPS has been increasing approximately from 1.5 to 4.0 in 1000 live birth to 1:1502. Though pyloric atresia is a very uncommon cause of gastric outlet obstruction in infant but atresia in this region occ...

that given here, applies the term pyloric canal to the passage through the pyloric sphincter in X-ray photographs of the stomach (fig. 4) and in the description of the movements of the stomach. Most radiologists still use the terms pyloric antrum or pre-pyloric segment for what is anatomically the pyloric canal, though Shanks (1938) uses the terms pyloric canal and pylorus as synonymous, statin...

In several systems, including some well studied invertebrate "model" preparations, rapid, rhythmic inputs drive slow muscles. In this situation muscle contractions can summate temporally between motor neuron bursts, tonically contract, and low-pass filter broad-band input. We have investigated how the muscles innervated by each motor neuron type of the rapid, rhythmic (cycle period, approximate...

In the isolated stomatogastric nervous system of the lobster Fasus lalandii, the strong modifications of the pyloric motor pattern induced by firing of the single anterior pyloric modulator neurone (APM) are due primarily to modulation by APM activity of the regenerative membrane properties which are responsible for the 'burstiness' of all the pyloric neurones and particularly of the non-pacema...