Introduction The extravascular lung water content is determined by the use of lung ultrasound (LUS) which is represented as B-lines. The aim of this study was to investigate whether the LUS measurement of extravascular lung water was correlated to changes in oxygenation. Methods This prospective cohort study was comprised of 73 patients with an average age of 56 (range: 18 to 87 years) who underwent elective cardiac surgery using cardiopulmonary bypass. The LUS score was performed preoperatively, time zero (T0), at one hour (T1), and at 24 hours (T2) post-surgery. Additionally, arterial oxygen partial pressure and fraction of inspired oxygen (PaO/FiO) ratio were measured at each time and the time-to-extubation. Results A negative correlation was found between the LUS score and PaO/FiO at T1 (p < 0.004). Extubation time and changes in the lung ultrasound score at T0 - T2 were positively correlated (p < 0.03). Plus, there was a positive correlation between fluid balance and lung ultrasound score at T2 (p < 0.03). Conclusion We found three significant correlations that support the use of LUS in cardiac surgery: 1) the more B-lines, the lower the oxygenation; 2) the more B-lines, the longer the period of ventilation; 3) the more B-lines, the more positive the fluid balance. LUS is a non-invasive bedside investigation that can be used to judge extravascular lung water, providing useful information in the management of patient oxygenation, fluid balance, and extubation.
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http://dx.doi.org/10.7759/cureus.9953 | DOI Listing |
Clin Respir J
January 2025
Department of Critical Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.
Background: In recent times, the applications of continuous renal replacement therapy (CRRT) beyond kidney-related conditions have been progressively increasing, and its implementation in randomized controlled trials (RCTs) specifically for acute respiratory distress syndrome (ARDS) has been documented. This meta-analysis compiles all existing RCTs to assess whether CRRT benefits ARDS.
Methods: We searched 12 databases in English and Chinese and two clinical trial centers up to November 28, 2023.
Brain Commun
December 2024
San Diego Biomedical Research Institute, San Diego, CA 92121, USA.
Hypoxia triggers blood-brain barrier disruption and a strong microglial activation response around leaky cerebral blood vessels. These events are greatly amplified in aged mice which is translationally relevant because aged patients are far more likely to suffer hypoxic events from heart or lung disease, and because of the pathogenic role of blood-brain barrier breakdown in vascular dementia. Importantly, it is currently unclear if disrupted cerebral blood vessels spontaneously repair and if they do, whether surrounding microglia deactivates.
View Article and Find Full Text PDFAm J Physiol Lung Cell Mol Physiol
January 2025
Department of Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States.
Eur J Cardiothorac Surg
December 2024
Department of Cardiothoracic Surgery, Copenhagen University Hospital, Rigshospitalet, Denmark.
Objectives: Extravascular lung water precedes deterioration of pulmonary function. Current tools to assess extravascular lung water in a setting of donor lung procurement and ex vivo lung perfusion (EVLP) are either subjective or not feasible. Therefore, a direCt Lung Ultrasound Evaluation (CLUE) has been introduced.
View Article and Find Full Text PDFLung ultrasound contributes to the diagnosis of perioperative pulmonary edema due to fluid overload and impairment of renal function. Laparoscopic surgery and the patient's intraoperative position can facilitate the emergence of these disturbances as well. A 34-year-old female patient underwent laparoscopic salpingectomy and ovarian resection in the Trendelenburg position because of an unruptured ectopic pregnancy.
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