Key result
Cutting the shaft of the Edwards PreSep Oximetry Catheter compromises its waterproof structure, leading to blood reflux through the optical fiber lumen and eventual failure of ScvO2 monitoring.
Why the study?
This letter discusses precautions regarding the waterproof structure of the oximetry central venous catheter shaft and the risk of blood reflux and leakage when the shaft is cut.
Case Report (n=1)
No
Cutting the shaft of an oximetry central venous catheter compromises its waterproof structure, leading to a risk of blood reflux and leakage.
Answers are grounded in this paper and cite their sources.
Avoid cutting PreSep shafts to prevent ScvO2 failure; leaves open optimal securement strategies.
his letter discusses precautions regarding the waterproof structure of the oximetry central venous catheter (CVC) shaft and the risk of blood reflux and leakage that can occur when the catheter shaft is cut. To assess oxygen supply-demand balance [1] and haemodynamics [2], the Swan-Ganz pulmonary artery catheter has been used for perioperative and postoperative management and treatment of critically ill patients for a half a century. In current clinical practice, haemodynamic parameters such as stroke volume (SV) and cardiac output (CO), as well as central venous oxygen saturation (ScvO2), can be measured continuously using a combination of FloTrac Sensor (Edwards Lifesciences Japan Ltd., Tokyo, Japan) [3], Edwards PreSep Oximetry Catheter (Edwards Lifesciences Japan Ltd., Tokyo, Japan) [4], and EV1000 Clinical Platform (Edwards Lifesciences Japan Ltd., Tokyo, Japan) or Vigileo Monitor (Edwards Lifesciences Japan Ltd., Tokyo, Japan) [5, 6]. These methods are less invasive than the Swan-Ganz pulmonary artery catheter, and the changes in the parameter values can be used as an index for perioperative management in both cardiovascular and non-cardiovascular surgeries. In addition, they can be used for the treatment of critically ill patients in the intensive care unit, enabling proactive determination of an appropriate therapy [7]. Compared to intermittent sampling and traditional vital signs alone, continuous ScvO2 monitoring is a more sensitive indicator of tissue perfusion because it reveals the true adequacy of tissue oxygenation, enabling early detection and assessment of clinical response to intervention [7, 8].
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Yamamoto et al. (2020) conducted a case report in Tricuspid atresia and ventricular septal defect undergoing Fontan conversion operation (n=1). Cutting the Edwards PreSep Oximetry Catheter shaft was evaluated on Waterproof integrity of the catheter shaft and ScvO2 measurement. Cutting the shaft of the Edwards PreSep Oximetry Catheter compromises its waterproof structure, leading to blood reflux through the optical fiber lumen and eventual failure of ScvO2 monitoring.
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