Using adult mongrel dogs, pyloric motor activity and gastric emptying observed by phototransducer (P.T.) under anesthesia and by strain gage transducer (S.G.T.) under consciousness. Pyloric motor activity and function were investigated in the dogs with distorted pylorus after instorations of Daclon tube, pyloric resection and pyloric stenosis. The pyloric sphincter responses to gastrin, pancreo...

Neuronal firing patterns can contain different temporal information. It has long been known that the fast pyloric and the slower gastric motor patterns in the stomatogastric ganglion of decapod crustaceans interact. However, the bi-directional influences between the pyloric rhythm and the gastric mill rhythm have not been quantified in detail from preparations that spontaneously express both pa...

Pyloric muscle dimensions were measured in 1400 consecutive newborn infants. Nine of these subsequently developed pyloric stenosis. Their pyloric measurements at birth were all within the normal range. Congenital preformed muscular hypertrophy does not appear to be present in babies who later develop pyloric stenosis.

Recordings from the muscles of the pyloric chamber of the shrimp Palaemon display a rhythmic pattern which is either monophasic or biphasic, and is different from the triphasic pyloric pattern of large decapods. Identification of the pyloric neurones in the stomatogastric ganglion and study of their synaptic relationships indicate that the pyloric circuit of Palaemon is very similar to the pylo...

The present study deals with the effect of local distension of the stomach on the motor function of the pyloric portion. The experiment was undertaken with canine stomachs. A. rubber balloon was introduced into the stomach. And, by inflating the balloon with air. fnn.dus, body and pyloric region of the stomach was distended individually. The results are summarized as follows: 1) When the same a...

Co-existing pyloric submucosal masses with hypertrophic pyloric stenosis (HPS) are very rare and treating these lesions is always a problem. A 20-day-old boy presented with recurrent episodes of projectile non-bilious vomiting lasting for 5 days. HPS was suspected due to the presenting age and the symptoms. The sonography demonstrated not only circumferential wall thickening of the pylorus, but...

Objectives: To evaluate the validity of ultrasound for diagnosis and exclusion of pyloric stenosis in the infants with nonbilious vomiting. Methodology: In a cross-sectional study, 444 consecutive infants with clinical suspicion of pyloric stenosis were evaluated by ultrasound (US) and categorized as pyloric stenosis or not according measuring parameters as muscle thickness, muscle width and ca...

The fast transient potassium or A current (IA) plays an important role in determining the activity of central pattern generator neurons. We have previously shown that the shal K+ channel gene encodes IA in neurons of the pyloric network in the spiny lobster. To further study how IA shapes pyloric neuron and network activity, we microinjected RNA for a shal-GFP fusion protein into four identifie...

A 58-year-old man with esophageal cancer underwent a transhiatal esophagectomy and presented to the surgical intensive care unit (SICU) with progressively worsening shortness of breath 14 days after his surgery. The patient was found to have a left empyema, possibly from an anastomotic leak, and underwent a left video-assisted thoracotomy (VATS) decortication and empyema drainage, and endoscopi...

Four studies reported an increasing incidence of pyloric stenosis during the late 1970s from geographically diverse areas of the United Kingdom. It was suggested that the increased incidence might be related to changes in infant feeding practices. We used data from the Metropolitan Atlanta Congenital Defects Program, a population based birth defects registry, to examine the secular trends and d...