Manometric Ventricular Trocar

Trocar site hernia.

OBJECTIVE To review the relationship between the pathogenesis and clinical manifestations of trocar site hernias seeking to confirm the definition of trocar site hernias by classification. DATA SOURCES We searched this subject in English on MEDLINE by combining the words "trocar," "port," "hernia, and "laparoscopy."Data Extraction and STUDY SELECTION We limited the main operations to cholec...

Combined Manometric and Ph Recording

Oesophageal acid clearing has been measured by counting the number of swallows needed to raise the lower oesophageal pH from 1.5 to 5.0 after instilling 15 ml 0 1 N hydrochloric acid. Normal subjects all had a result less than 12, as did asymptomatic patients with hiatal hernias. Patients with symptomatic gastrooesophageal reflux tended to have abnormal acid clearance, as did those with oesopha...

Manometric Analysis of Gas Mixtures

A Manometric Respirometer for Snails

IN the course of an investigation into the physiology of the edible snail {Helix pomatia L.), it became necessary to measure the respiration individually of large numbers of animals. A system in which CO,-free air was passed over the animals and then through baryta was tried but rejected because the snails apparently dislike currents of air, tending to withdraw into their shells. Analysis of ga...

High-Pressure Trocar Insertion Technique

BACKGROUND The majority of laparoscopic complications occur at the time of Veress needle and trocar insertion. Although not very frequent, they increase the morbidity and mortality of both diagnostic and operative laparoscopic procedures. Alternative techniques of trocar insertion have been described but have not completely eliminated the risk of injury. TECHNIQUE After Veress needle insertio...