Ender, J; Brodowsky, M; Falk, V; Baunsch, J; Koncar-Zeh, J; Kaisers, U X; Mukherjee, C (2010). High-frequency jet ventilation as an alternative method compared to conventional one-lung ventilation using double-lumen tubes during minimally invasive coronary artery bypass graft surgery. Journal of Cardiothoracic and Vascular Anesthesia, 24(4):602-607.
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OBJECTIVE: To optimize the conditions for the surgeon during minimally invasive direct coronary artery bypass (MIDCAB) and totally endoscopic coronary artery bypass (TECAB) procedures, one-lung ventilation (OLV) is required using double-lumen tubes (DLT). This prospective study was designed to compare high-frequency jet ventilation (HFJV) of both lungs with the conventional method of OLV via DLT. DESIGN: Prospective, randomized, clinical study. SETTING: University-affiliated heart center. PARTICIPANTS: Forty patients with coronary artery disease and scheduled for elective MIDCAB or TECAB procedures were equally randomized into a DLT and an HFJV group. INTERVENTIONS: In the DLT group, OLV of the right lung was performed throughout the surgical procedure. In the HFJV group, patients received a conventional single-lumen endotracheal tube and both lungs were ventilated using HFJV. MEASUREMENTS: Hemodynamic, oxygenation and ventilation parameters were measured at the beginning of the operation, then 5, 15, 30, and 60 minutes after OLV/HFJV, as well as immediately before transfer to the ICU. MAIN RESULTS: Regarding the view of the surgical field, surgeons' comfort did not differ between methods. The intraoperative PaO(2) was significantly higher in the HFJV group compared with the DLT group at 5 (336.8 +/- 123.3 v 228.6 +/- 124.0; p = 0.009) and 15 minutes (301.7 +/- 133.9 v 192.6 +/- 92.8; p = 0.012). The PaCO(2) was significantly higher in the HFJV group after 5 minutes and persisted through 60 minutes of ventilation. The peak inspiratory pressure was significantly lower during HFJV (10.0 +/- 2.8 mbar v 32.1 +/- 5.9 mbar). CONCLUSIONS: HFJV in MIDCAB or TECAB procedures appears to be a feasible alternative to OLV using a DLT, although study in a larger population is required.
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > University Hospital Zurich > Clinic for Cardiovascular Surgery|
|Dewey Decimal Classification:||610 Medicine & health|
|Deposited On:||07 Jan 2011 10:46|
|Last Modified:||27 Nov 2013 17:29|
|Free access at:||PubMed ID. An embargo period may apply.|
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