title: Correlation of Blood Gas Parameters with Central Venous Pressure in Patients with Septic Shock; a Pilot Study.
abstract: OBJECTIVE
  To determine the correlation between blood gas parameters and central venous pressure (CVP) in patients suffering from septic shock.
  
  
  METHODS
  Forty adult patients with diagnosis of septic shock who were admitted to the emergency department (ED) of Shohadaye Tajrish Hospital affiliated with Shahid Beheshti University of Medical Sciences, and met inclusion and exclusion criteria were enrolled. For all patients, sampling was done for venous blood gas analysis, serum sodium and chlorine levels. At the time of sampling; blood pressure, pulse rate and CVP were recorded. Correlation between blood gas parameters and hemodynamic indices were.
  
  
  RESULTS
  A significant direct correlation between CVP with anion gap (AG) and inversely with base deficit (BD) and bicarbonate. CVP also showed a relative correlation with pH, whereas it was not correlated with BD/ AG ratio and serum chlorine level. There was no significant association between CVP and clinical parameters including shock index (SI) and mean arterial pressure (MAP).
  
  
  CONCLUSIONS
  It seems that some of non invasive blood gas parameters could be served as alternative to invasive measures such as CVP in treatment planning of patients referred to an ED with septic shock.
authors.affiliation: Department of Emergency Medicine, Shohadaye Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Baratloo
authors.affiliation: Department of Emergency Medicine, Shohadaye Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Farhad
authors.initials: F
authors.lastname: Rahmati
authors.affiliation: Department of Pediatrics, Valeeasr Hospital, Ghazvin University of Medical Sciences, Abyek, Iran.
authors.forename: Alaleh
authors.initials: A
authors.lastname: Rouhipour
authors.affiliation: Department of Emergency Medicine, Shohadaye Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Motamedi
authors.affiliation: Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: Elmira
authors.initials: E
authors.lastname: Gheytanchi
authors.affiliation: Department of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Fariba
authors.initials: F
authors.lastname: Amini
authors.affiliation: Department of Emergency Medicine, Shohadaye Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Saeed
authors.initials: S
authors.lastname: Safari
keywords: Central venous pressure; Noninvasive monitoring; Septic shock