Clinical evaluation of different fluid-filled systems for oesophageal manometry.
In a clinical study of oesophageal manometry with fluid-filled catheters, both a non-perfused system and a perfused system with a syringe pump have been compared to a system with a low-compliance perfusion pump, which served as a reference. Significantly lower values of motility amplitudes, motility derivatives, and partly of LES pressures, and a time delay of up to 0.5 sec of the amplitude maximum were obtained with the non-perfused system and the system with a syringe pump in comparison to the low-compliance system. Since the oesophageal function can be erroneously evaluated by use of a non-perfused system or a perfused system with a syringe pump, such systems cannot be recommended for clinical use.
D000328:Adult; D000368:Aged; D002408:Catheters, Indwelling; D004943:Esophagogastric Junction / Q000502:physiology*; D005069:Evaluation Studies as Topic; D006801:Humans; D008365:Manometry / Q000295:instrumentation*; D008875:Middle Aged; D010477:Perfusion; D011312:Pressure; D013997:Time Factors