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Pressure-controlled versus volume-controlled ventilation during one-lung ventilation in the prone position for robot-assisted esophagectomy.

Authors
Choi, YS; Shim, JK; Na, S; Hong, SB; Hong, YW; Oh, YJ
Citation
Surgical endoscopy, 23(10):2286-2291, 2009
Journal Title
Surgical endoscopy
ISSN
0930-27941432-2218
Abstract
BACKGROUND: The prone position during robotic esophageal mobilization for minimally invasive esophagectomy (MIE) provides several advantages with regards to operative times, surgeon ergonomics, and surgical view; however, this technique requires one-lung ventilation (OLV). There are no guidelines about ventilatory modes during OLV in the prone position. We investigated the effects of volume-controlled (VCV) and pressure-controlled ventilation (PCV) on oxygenation and intrapulmonary shunt during OLV in the prone position in patients who underwent robot-assisted esophagectomy.



METHODS: Eighteen patients, no major obstructive or restrictive pulmonary disease, were allocated randomly to one of two groups. In the first group (n = 9), OLV was started by VCV and the ventilator was switched to PCV after 30 minutes. In the second group (n = 9), the modes of ventilation were performed in the opposite order in the prone position. Hemodynamic and respiratory variables were obtained during OLV at the end of each ventilatory mode.



RESULTS: There were no significant differences in arterial oxygen tension (PaO(2)), airway pressures, dynamic lung compliance, or physiologic dead space (Vd/Vt) during OLV between PCV and VCV in the prone position. Intrapulmonary shunt (Qs/Qt) was significantly lower with VCV than with PCV during OLV in the prone position (p = 0.044).



CONCLUSION: PCV provides no advantages compared with VCV with regard to respiratory and hemodynamic variables during OLV in the prone position. Either ventilatory mode can be safely used for patients who undergo robot-assisted esophagectomy and who have normal body mass index and preserved pulmonary function.
MeSH terms
Analysis of VarianceEsophagectomy/methods*Esophagoscopy/methods*FemaleHemodynamicsHumansMaleMiddle AgedPressureProne PositionProspective StudiesRespiration, Artificial/methods*Respiratory Function TestsRobotics*Surgical Procedures, Minimally Invasive
DOI
10.1007/s00464-008-0310-5
PMID
19184209
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Anesthesiology & Pain Medicine
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