Changes in stroke volume variation monitored by FloTrac/Vigileo system during mechanical ventilation in patients undergoing pulmonary lobectomy
10.3760/cma.j.issn.0254-1416.2011.07.020
- VernacularTitle:肺叶切除术患者不同通气模式下每搏量变异度的变化
- Author:
Xu CHEN
;
Lei CHEN
;
Xiaofeng ZHANG
;
Meiying XU
- Publication Type:Journal Article
- Keywords:
Stroke volume;
Respiration,artificial;
Pneumonectomy
- From:
Chinese Journal of Anesthesiology
2011;31(7):844-846
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate the changes in stroke volume variation (SVV) monitored by FloTrac/Vigileo system during mechanical ventilation in patients undergoing pulmonary lobectomy.MethodsForty-four ASA Ⅰ or Ⅱ patients aged 44-64 yr weighing 47-86 kg undergoing elective pulmonary lobectomy performed under general anesthesia were studied.Blood volume was maintained by fluid (crystalloid∶ colloid 1∶1) infusion at a rate of 6-8 ml·kg-1 ·h-1.Cardiac output index (CI),stroke volume index (SVI) and SVV were measured based on arterial pressure wave form analysis by FloTrac/Vigileo System (Edwards Co.,USA) and recorded at following time points:at 5 min of two-lung ventilation (TLV) in supine position,2 min TLV in lateral position,during one-lung ventilation (OLV) before thoracotomy,at 5 and 30 min of OLV after thoracotomy,1 and 15 min OLV + PEEP of 5cm H2 O,before and immediately and 1 min after reflation of the remaining lobes.The normal value for SVV is less than 13%.ResultsThe hemodynamic parameters were stable during lobectomy.CI and SVI were within normal range.SVV was less than 13% at all time points except that at immediately after reflation of the remaining lobes.ConclusionSVV obtained with FloTrac/Vigileo system can be used to guide fluid therapy during OLV in mechanically ventilated patients undergoing pulmonary lobectomy.