Prospective clinical evaluation of a new manometer syringe that distinguishes pressures below 30 and above 50 mmHg

Study ObjectiveTo evaluate a new disposable syringe (Certofix PresSure Check [B Braun Melsungen AG, Melsungen, Germany]) that serves as a manometer.DesignProspective study.SettingUniversity hospital's cardiac surgery suite.Patients21 consecutive patients with continuous invasive monitoring of central venous and arterial pressures during cardiothoracic surgery.Interventions and MeasurementsThe Certofix PresSure Check syringe was connected to the side port of the central venous and arterial catheters.ResultsCentral venous pressures were correctly indicated as below 30 mmHg and arterial pressures as above 50 mmHg in all 21 patients.ConclusionsCertofix PresSure Check provides a unique way of testing whether a catheter is placed in a low or high pressure system. It can be used for identifying inadvertent arterial punctures.