The prevalence and adverse effect of diaphragm dysfunction (DD) after bilateral-lung transplant (LT) are still unclear, despite a well-known negative impact on weaning and outcome in other cohorts of critically ill and surgical patients. Objects: The primary aim is investigating the prevalence of DD, assessed using point-of-care ultrasound and defined as diaphragm thickening fraction (TFdi) \< 29%, at the first weaning trial after LT. Secondary aims are investigating the impact of DD on weaning (defined success or failure according to pre-defined criteria, neuroventilatory efficiency (EAdi or NVE), perioperative (14-day) pneumonia, ICU length of stay (LOS), in-hospital mortality, and identifying potential risk factors for DD. Moreover, we aim to study the correlation between TFdi versus EAdi/NVE and the rapid shallow breathing index (RSBI), respectively.
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Diaphragmatic dysfunction at ultrasound assessment
Timeframe: through study completion, an average of 1 yea