Both left single lung ventilation by left double lumen tube and bilateral ventilation with selective blockage of right middle lower lobe by bronchial blocker can provide suitable surgical field for minimally invasive cardiac surgery. The current study was designed to compare the impact of these two different methods on oxygenation, degree of pulmonary collapse and postoperative complications.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
48
Using bronchial blocker to block right middle lower lobe during surgery.
Using double lumen tube to achieve single lung ventilation during surgery.
oxygenation
record SpO2 and PaO2 during selective ventilation
Time frame: intraoperative
degree of pulmonary collapse
surgeon score the degree of pulmonary collapse (1 for no pulmonary collapse and 5 for excellent pulmonary collapse)
Time frame: intraoperative
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