The Effect of Prone Positioning After Lung Transplantation.

Autor: Frick, Anna Elisabeth, Schiefer, Judith, Maleczek, Mathias, Schwarz, Stefan, Benazzo, Alberto, Rath, Anna, Kulu, Askin, Hritcu, Richard, Faybik, Peter, Schaden, Eva, Jaksch, Peter, Tschernko, Edda, Frommlet, Florian, Markstaller, Klaus, Hoetzenecker, Konrad
Zdroj: Annals of Thoracic Surgery; May2024, Vol. 117 Issue 5, p1045-1051, 7p
Abstrakt: Prone positioning has become a standard therapy in acute respiratory distress syndrome to improve oxygenation and decrease mortality. However, little is known about prone positioning in lung transplant recipients. This large, singe-center analysis investigated whether prone positioning improves gas exchange after lung transplantation. Clinical data of 583 patients were analyzed. Prone position was considered in case of impaired gas exchange Pa o 2 /fraction of oxygen in inhaled air (<250), signs of edema after lung transplantation, and/or evidence of reperfusion injury. Patients with hemodynamic instability or active bleeding were not proned. Impact of prone positioning (n = 165) on gas exchange, early outcome and survival were determined and compared with patients in supine positioning (n = 418). Patients in prone position were younger, more likely to have interstitial lung disease, and had a higher lung allocation score. Patients were proned for a median of 19 hours (interquartile range,15-26) hours). They had significantly lower Pa o 2 /fraction of oxygen in inhaled air (227 ± 96 vs 303 ± 127 mm Hg, P =.004), and lower lung compliance (24.8 ± 9.1 mL/mbar vs 29.8 ± 9.7 mL/mbar, P <.001) immediately after lung transplantation. Both values significantly improved after prone positioning for 24 hours (Pa o 2 /fraction of oxygen ratio: 331 ± 91 mm Hg; lung compliance: 31.7 ± 20.2 mL/mbar). Survival at 90 days was similar between the 2 groups (93% vs 96%, P =.105). Prone positioning led to a significant improvement in lung compliance and oxygenation after lung transplantation. Prospective studies are needed to confirm the benefit of prone positioning in lung transplantation. [ABSTRACT FROM AUTHOR]
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