[Comparison of venous pressure in the external jugular vein and the superior vena cava during anesthesia].
Venous pressure between the external jugular vein (EJV), and the superior caval vein (SCV) was compared in 15 patients, free of cardiorespiratory disease and undergoing abdominal surgery. In each patient data was taken in four different positions: A) anaesthetized patient in supine position and mechanical ventilation; B) anaesthetized patient in Trendelenburg position and mechanical ventilation; C) anaesthetized patient in anti-Trendelenburg and mechanical ventilation, and D) awake patient in supine position and spontaneous ventilation. A short, thick catheter with unique end lumen was used for EJV, and a long catheter from the basilic vein, to the SCV. Significant differences between mean and standard deviations of EJV and SCV were not founded. Linea correlation for the 4 positions was performed (r = 0.97, 0.91, 0.88 and 0.60 respectively) being significant for A-B y C positions. 4.5 cm H2O was the maximal difference obtained between SCV and EJV for A, B and C positions, and 10 cm H2O the maximal difference for the D position. The mean changes between the positions A-B, A-C and A-D was compared and significant differences (p less than or equal to 0.001) for A-C were seen, whereas A-B did not attain significant differences. We conclude that the EJV cannulation, with a short and thick catheter, allow the central venous pressure control during anaesthesia, in supine position, Trendelenburg and anti-Trendelenburg, but not during the recovery.
Blanco Vargas
D
D
Moral García
V
V
Recio Corral
J
J
Torras
J
J
Ferrer
J M
JM
D000005:Abdomen / Q000601:surgery; D000768:Anesthesia, General; D002404:Catheterization; D002496:Central Venous Pressure; D006801:Humans; D007432:Intraoperative Period; D007601:Jugular Veins / Q000502:physiology*; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D011187:Posture; D012121:Respiration, Artificial; D014683:Vena Cava, Superior / Q000502:physiology*; D014690:Venous Pressure
Comparación de la presión venosa en vena yugular externa y vena cava superior durante la anestesia.