Central venous pressure in femoral catheter: correlation with superior approach after heart surgery.
OBJECTIVE
It is common to obtain femoral venous approach in patients undergoing combined heart surgery or as an alternative to superior approach (internal jugular vein or subclavian vein). The aim of this study was to compare the measures of central venous pressure (CVP) at two different sites (superior versus femoral).


METHODS
We prospectively and openly allocated 60 patients who underwent heart surgery between July from November 2006. Three measures were obtained from each patient at each site (admission, 6 and 12 hours after surgery) in two different inclinations of the headboard (zero and 30 degrees) totaling 720 measures.


RESULTS
Fifty five percent of patients who underwent coronary artery bypass grafting, 38% heart valve surgery and 7% other surgeries. The mean of CVP +/- standard deviation (SD) measured in superior approach was 13.0 +/- 5.5 mmHg (zero degree) and 13.3 +/- 6.1 mmHg (30 degrees) while the measures in inferior approach were 11.1 +/- 4.9 mmHg (zero degree) and 13.7 +/- 4.6 mmHg (30 degrees). The linear correlation (r) between the measures in both sites was 0.66 (zero degree) and 0.53 (30 degrees), both with p value<0.0001.


CONCLUSIONS
The CVP can be measured with accuracy in the femoral venous approach in the immediate postoperative period of heart surgery with better linear correlation obtained with the measures made with the headboard positioned at zero degree.
Pacheco
Sirley da Silva
Sda S
Hospital de Base, São José do Rio Preto Medical School - FAMERP.
Machado
Mauricio de Nassau
MN
Amorim
Renée Costa
RC
Rol
James da Luz
Jda L
Corrêa
Léa Carolina de Lima
LC
Takakura
Isabela Thomaz
IT
Palmegiani
Eduardo
E
Maia
Lilia Nigro
LN
D001513:Beds; D006348:Cardiac Surgical Procedures; D002405:Catheterization, Central Venous / Q000379:methods*; D002496:Central Venous Pressure / Q000502:physiology*; D004812:Epidemiologic Methods; D005260:Female; D005268:Femoral Vein / Q000502:physiology*; D006801:Humans; D007601:Jugular Veins / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D011187:Posture; D011300:Preoperative Care; D013350:Subclavian Vein / Q000502:physiology*; D013997:Time Factors