European journal of obstetrics, gynecology, and reproductive biology
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Eur. J. Obstet. Gynecol. Reprod. Biol. · Oct 2010
The pressure profile test is more sensitive and specific than Palmer's test in predicting correct placement of the Veress needle.
Although the majority of laparoscopic complications result from improper Veress needle placement, the safety tests commonly used to determine correct placement are not always reliable. A prospective observational study (Canadian Task Force Classification II-2) was set up to determine the reliability of Palmer's and pressure profile tests in predicting the correct intraperitoneal placement of the Veress needle prior to insufflation. ⋯ The pressure profile test was a more reliable guide to confirming the correct placement of the Veress needle as a negative test is more likely to indicate failure to achieve intraperitoneal placement.