title: [Comparison between ETCO₂ values measured by the Smart Capnoline™ and the PACO₂ in intubated then extubated postoperative cardiac surgery patients].
abstract: OBJECTIVE
  To compare the PaCO(2) with the ETCO(2) obtained with the Smart Capnoline™ in the postoperative setting of cardiac surgery during ventilation and after extubation
  
  
  METHODS
  Prospective, observational.
  
  
  METHODS
  Twenty patients after cardiac surgery.
  
  
  METHODS
  In the intensive care unit, arterial blood gases were measured concomitantly with ETCO(2), and difference between PaCO(2) and ETCO(2) were calculated. Three CO(2) sensors were utilized: Filterline H set for intubated patients, Smart Capnoline HO(2) (nasal version) and Smart Capnoline O(2) (bucconasal version) after extubation. Data were compared with Wilconson test and the intraclass correlation coefficient was calculated.
  
  
  RESULTS
  The difference PaCO(2) - ETCO(2) was significantly larger in extubated patients compared to intubated patients, which is also confirmed for the bucconasal sensor (intubated patients: 6.6 ± 4.3 mmHg, nasal sensor: 9.3 ± 3.5 mmHg, bucconasal sensor: 15,4 ± 12.9 mmHg).
  
  
  CONCLUSIONS
  In the postoperative setting of cardiac surgery, ETCO(2) measurements allow a reliable estimation of PaCO(2) in intubated patients in contrast to measurements in extubated patients. The bucconasal CO(2) sensor does not show more reliable measurements compared to nasal sensors in the postoperative setting of cardiac surgery.
authors.affiliation: Département d'anesthésie réanimation, CHU La Cavale-Blanche, boulevard Tanguy-Prigent, 29609 Brest, France.
authors.forename: S
authors.initials: S
authors.lastname: Rousselon
authors.forename: M
authors.initials: M
authors.lastname: Coat
authors.forename: B V
authors.initials: BV
authors.lastname: Nguyen
authors.forename: P
authors.initials: P
authors.lastname: Gouny
authors.forename: E
authors.initials: E
authors.lastname: Nowak
authors.forename: J-P
authors.initials: JP
authors.lastname: Wargnier
authors.forename: C-C
authors.initials: CC
authors.lastname: Arvieux
authors.forename: G
authors.initials: G
authors.lastname: Gueret
mesh_terms: D000368:Aged; D001944:Breath Tests; D019296:Capnography / Q000295:instrumentation / Q000379:methods*; D002245:Carbon Dioxide / Q000097:blood*; D006348:Cardiac Surgical Procedures; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D011182:Postoperative Care; D011446:Prospective Studies; D012121:Respiration, Artificial
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen