Total liquid ventilation (TLV) is an alternative treatment for severe lung injury. High tidal volume is usually required for TLV to maintain adequate CO clearance. However, high tidal volume may cause alveolar barotrauma. We aim to investigate the effect of low tidal volume on pulmonary inflammation in piglets with lung injury and under TLV. After the establishment of acute lung injury model by infusing lipopolysaccharide, 12 piglets were randomly divided into two groups, TLV with high tidal volume (25 mL/kg) or with low tidal volume (6 mL/kg) for 240 min, respectively. Extracorporeal CO removal was applied in low tidal volume group to improve CO clearance and in high tidal volume group as sham control. Gas exchange and hemodynamic status were monitored every 30 min during TLV. At the end of the study, pulmonary mRNA expression and plasmatic concentration of interleukin-6 (IL-6) and interleukin-8 (IL-8) were measured by collecting lung tissue and blood samples from piglets. Arterial blood pressure, PaO , and PaCO showed no remarkable difference between groups during the observation period. Compared with high tidal volume strategy, low tidal volume resulted in 76% reduction of minute volume and over 80% reduction in peak inspiratory pressure during TLV. In addition, low tidal volume significantly diminished pulmonary mRNA expression and plasmatic level of IL-6 and IL-8. We conclude that during TLV, low tidal volume reduces lung inflammation in piglets with acute lung injury without compromising gas exchange.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/aor.12784 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The regional ventilation distribution monitored by electrical impedance tomography during anesthesia induction with head-rotated mask ventilation.
Physiol Meas
January 2025
Department of Anesthesiology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Xuhui, Shanghai, 200032, China, Shanghai, Shanghai, 200032, CHINA.
Abstract Objective: Abnormal regional lung ventilation can lead to undesirable outcomes during the induction of anesthesia. Head rotated ventilation has proven to change the airflow of upper airway tract and be effective in increasing the tidal volume. This study aimed to investigate the influence of head rotated mask ventilation on regional ventilation distribution during the induction phase of anesthesia.
View Article and Find Full Text PDFEffects of Variable Ventilation on Gas Exchange in an Experimental Model of Capnoperitoneum: A Randomized Crossover Study.
Anesth Analg
January 2025
From the Unit for Anaesthesiological Investigations, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, University of Geneva, Geneva, Switzerland.
Background: The rapid advancement of minimally invasive surgical techniques has made laparoscopy a preferred alternative because it reduces postoperative complications. However, inflating the peritoneum with CO2 causes a cranial shift of the diaphragm decreasing lung volume and impairing gas exchange. Additionally, CO2 absorption increases blood CO2 levels, further complicating mechanical ventilation when the lung function is already compromised.
View Article and Find Full Text PDFAn optimal protective ventilation strategy in lung resection surgery: a prospective, single-center, three-arm randomized controlled trial.
Updates Surg
January 2025
Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
Protective ventilation reduces ventilator-induced acute lung injury postoperatively; however, the optimal strategy for one-lung ventilation (OLV) remains unclear. This study compared three protective ventilation strategies with a postoperative partial pressure of oxygen (PaO)/fraction of inspired oxygen (FiO) ratio to reduce the incidence of immediate postoperative pulmonary complications (PPCs) in patients undergoing lung resection surgery. Eighty-seven patients with ASA physical status I-III requiring OLV for lung resection surgery were randomized into three groups according to the applied ventilation strategies: low tidal volume (V) of 4 mL/kg of predicted body weight (PBW) (LV group), medium V of 6 mL/kg of PBW (MV group), and high V of 8 mL/kg of PBW (HV group).
View Article and Find Full Text PDFThe effect of two different surgical positions on pulmonary functions ın laparoscopic sleeve gastrectomies: reverse Trendelenburg vs beach chair.
Surg Endosc
January 2025
Department of Anesthesiology and Reanimation, Faculty of Medicine, Istınye University Medicalpark Gaziosmanpasa Hospital, Istanbul, Turkey.
Background: The aim of our study is to compare the effect of the 30° reverse Trendelenburg position combined with the beach chair position on respiratory parameters in laparoscopic sleeve gastrectomy (LSG) with the 30° reverse Trendelenburg position alone.
Material And Method: Fifty patients with body mass index > 30 were included in the study. The patients were divided into two groups; in the control group, the standard 30° reverse Trendelenburg.
Supraglottic airway in neonatal porcine model.
Pediatr Res
January 2025
Centre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, AB, Canada.
Background: Positive pressure ventilation (PPV) in the delivery room is routinely performed using a face mask attached to a ventilation device. In 2023, the Consensus of Science and Treatment Recommendations for neonatal resuscitation stated that a supraglottic airway (SGA) can be used for PPV if resources and training permits. However, there is very limited data on tidal volume (V) delivery using SGAs.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!