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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Pediatric surgery international 14 (1998), S. 178-181 
    ISSN: 1437-9813
    Schlagwort(e): Key words Infantile hypertrophic pyloric stenosis ; Manometry ; Atropine ; Pylorospasm ; Ramstedt pyloromyotomy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract There are no published data of manometric studies of pyloric motor function in patients with infantile hypertropic pyloric stenosis (IHPS). The present study attempted to examine the characteristics of motor abnormality of the pylorus in five children with IHPS. Using a transducer-built-in manometric catheter cannulated through the pylorus under fluoroscopy, the pressure in the pyloric canal was recorded continuously over 3 h during fasting. Clusters of high-amplitude spastic contractions of over 300 mmHg were recorded at intervals. The frequency was 1–3/min (mean 1.7 cpm) and the duration was 7–15 s. These periodic spastic contractions were suppressed temporarily for 20–30 min after intravenous injection of 0.01 mg/kg atropine. After pyloromyotomy, these spastic contractions decreased remarkably in amplitude, but there were no changes in frequency. It is concluded that the underlying motor abnormality observed in hypertrophied pyloric muscle is clusters of high-amplitude contractions, although more precise measurements of basal pyloric pressure are needed to explore the pathophysiology of IHPS in detail. The effect of pyloromyotomy may be related to the decrease in high-amplitude contractions.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Pediatric surgery international 5 (1990), S. 433-436 
    ISSN: 1437-9813
    Schlagwort(e): Congenital biliary atresia ; Roux-en-Y biliary reconstruction ; Ascending cholangitis ; Intestinal motility ; Electromyographic analysis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Cholangitis after biliary reconstruction for congenital biliary atresia is a troublesome postoperative complication. In order to clarify its mechanism and the changes in intestinal movement after biliary reconstruction by Roux-en-Y anastomosis, we performed electromyographic (EMG) studies of the motility of the reconstructed intestine in dogs. Monitoring the basic electrical rhythm (BER) and migrating myoelectric complexes (MMC), EMG analysis was carried out. As most of the Y-loop MMCs were propagated smoothly to the anal side, according to the continuity of the intestine, the intestinal contents were transported without stagnation. These intestinal movements appear to be useful as a biliary drainage route and to prevent ascending cholangitis. A comparison of short- and long-term intestinal motility after biliary reconstruction showed adaptation of the intestinal movement following the procedure. The outflow of bile appeared to accelerate intestinal motility because of prolongation of the MMC interval in the duodenum and oral jejunum without bile flow.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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