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Accuracy of totally implanted ports, tunnelled, single- and multiple-lumen central venous catheters for measurement of central venous pressure. 2000

F Blot, and A Laplanche, and B Raynard, and N Germann, and S Antoun, and G Nitenberg
Service de Réanimation Polyvalente, Institut Gustave Roussy, Villejuif, France. blot@igr.fr

OBJECTIVE To verify the accuracy of totally implanted ports, tunnelled central venous catheters (CVC), widely used in cancer patients, and multi-lumen catheters, used in intensive care units (ICUs), in measuring central venous pressure (CVP), using right atrial pressure (RAP) measured in a Swan-Ganz catheter as the reference standard. METHODS A prospective study, over a 10-month period. METHODS A medical-surgical ICU in a comprehensive cancer centre. METHODS Patients who had both (1) a Swan-Ganz catheter and (2) either a tunnelled catheter, a single or a multi-lumen catheter, or a totally implanted port. METHODS RAP and CVP were measured simultaneously in each patient. RESULTS Fifty-six pairs of RAP-CVP measurements were performed in 35 patients: 6 tunnelled catheters, 6 non-tunnelled single-lumen catheters, 26 multiple-lumen catheters and 18 totally implanted ports were studied. RAP measured in the Swan-Ganz catheter and CVP measured in the CVC were strongly correlated (r = 0.94, p < 0.01), whatever the type of catheter studied. The mean difference between RAP and CVP was -0.39 +/- 1.73 (SD) mmHg. In 51 cases (91%), the difference was within the limits of agreement (-3.78 to 3.00 mmHg, Bland and Altman method). For the five cases with a difference of 4 mmHg (three totally implanted ports, one double- and one triple-lumen catheter), CVP was greater than RAP. CONCLUSIONS CVP can be accurately measured in totally implanted ports, tunnelled or non-tunnelled single-lumen and multiple-lumen catheters. When the difference exceeds the limit of agreement, the discrepancy between the two measurements has limited significance in most cases.

UI MeSH Term Description Entries
D007362 Intensive Care Units Hospital units providing continuous surveillance and care to acutely ill patients. ICU Intensive Care Units,Intensive Care Unit,Unit, Intensive Care
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009369 Neoplasms New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms. Benign Neoplasm,Cancer,Malignant Neoplasm,Tumor,Tumors,Benign Neoplasms,Malignancy,Malignant Neoplasms,Neoplasia,Neoplasm,Neoplasms, Benign,Cancers,Malignancies,Neoplasias,Neoplasm, Benign,Neoplasm, Malignant,Neoplasms, Malignant
D011446 Prospective Studies Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. Prospective Study,Studies, Prospective,Study, Prospective
D002173 Cancer Care Facilities Institutions specializing in the care of cancer patients. Hospitals, Cancer,Cancer Care Facility,Cancer Hospital,Cancer Hospitals,Facilities, Cancer Care,Facility, Cancer Care,Hospital, Cancer
D002405 Catheterization, Central Venous Placement of an intravenous CATHETER in the subclavian, jugular, or other central vein. Central Venous Catheterization,Venous Catheterization, Central,Catheterization, Central,Central Catheterization,Catheterizations, Central,Catheterizations, Central Venous,Central Catheterizations,Central Venous Catheterizations,Venous Catheterizations, Central
D002407 Catheterization, Swan-Ganz Placement of a balloon-tipped catheter into the pulmonary artery through the antecubital, subclavian, and sometimes the femoral vein. It is used to measure pulmonary artery pressure and pulmonary artery wedge pressure which reflects left atrial pressure and left ventricular end-diastolic pressure. The catheter is threaded into the right atrium, the balloon is inflated and the catheter follows the blood flow through the tricuspid valve into the right ventricle and out into the pulmonary artery. Catheterization, Pulmonary Artery,Swan-Ganz Catheterization,Pulmonary Artery Catheterization,Artery Catheterization, Pulmonary,Artery Catheterizations, Pulmonary,Catheterization, Swan Ganz,Catheterizations, Pulmonary Artery,Pulmonary Artery Catheterizations,Swan Ganz Catheterization
D002408 Catheters, Indwelling Catheters designed to be left within an organ or passage for an extended period of time. Implantable Catheters,In-Dwelling Catheters,Catheter, In-Dwelling,Catheter, Indwelling,Catheters, In-Dwelling,In Dwelling Catheters,In-Dwelling Catheter,Indwelling Catheter,Indwelling Catheters
D002496 Central Venous Pressure The blood pressure in the central large VEINS of the body. It is distinguished from peripheral venous pressure which occurs in an extremity. Venous Pressure, Central,Central Venous Pressures,Pressure, Central Venous,Pressures, Central Venous,Venous Pressures, Central

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