View clinical trials related to Pulmonary Atelectasis.
Filter by:Ventilated Patients especially those undergoing upper abdominal surgeries are prone to lung atelectasis. They are at risk of adverse effects secondary to inadequate lung ventilation. Applied PEEP and Recruitment maneuver are thought to enhance lung aeration under general anesthesia which could be assessed by ultrasound.
To validate the benefits of recognizing asymmetric lung disease like atelectasis and pneumothorax in neonatal respiratory distress syndrome using electrical impedance tomography
We aimed to investigate the effect of posterior quadratus lumborum block on postoperative atelectasis in inguinal hernia surgery in pediatric patients.
Background: Atelectasis occurs in the majority of patients with general anesthesia, which can lead to postoperative pulmonary complications (PPCs) and affect the postoperative outcome. However, there is still no exact method to prevent it though agents. S-ketamine may prevent atelectasis due to its airway smooth muscle relaxation and anti-inflammatory effects. Lung ultrasound is a portable and reliable bedside imaging technology for diagnosing anesthesia-induced atelectasis. Here, we intend to assess whether small-dose of S-ketamine can reduce the incidence of atelectasis after intubation under general anesthesia using lung ultrasound, in order to prevent the early formation of perioperative atelectasis and perioperative pulmonary complications. Methods: The trial is a single institution, prospective, randomized controlled, parallel grouping, double-blind study. From October 2021 to March 2022, 100 patients (18-60 years old) scheduled for elective surgery will be recruited from Beijing Tiantan Hospital, Capital Medical University, and randomly assigned to the S-ketamine group (Group S) and the normal saline group (Group N) at a ratio of 1:1. The label-masked agents will be given 5 minutes before induction and all patients will undergo a standardized general anesthesia protocol. Related data will be collected at three time point: after radial artery puncture (T1), 15 minutes after tracheal intubation (T2) and before extubation (T3). The primary outcome will be the total LUS scores at T2. Secondary outcomes include LUS scores in 6 chest regions at T2; total LUS scores at T3; arterial blood-gas analysis results (PaCO2, PaO2) and PaO2/FiO2 at T2 and T3, plateau pressure(Pplat) and dynamic lung compliance (Cdyn) at T2 and T3; the incidence of postoperative complications associated with S-ketamine and postoperative pulmonary complications (PPCs) 2 and 24 hours after surgery；. Discussion: This trial aims to explore whether a simple and feasible application of S-ketamine before the induction of general anesthesia can prevent atelectasis. The results of this study may provide new ideas and direct clinical evidence for the prevention and treatment of perioperative pulmonary complications during anesthesia. Key words: atelectasis, S-ketamine, ultrasound, RCT, protocol
General anaesthesia is known to promote lung collapse (atelectasis) which will persist in the postoperative period. Inflating the lung to a pressure of 40 cmH2O, called a vital capacity manoeuvre (VCM), performed a few minutes before extubation followed by the use of 40% of O2 will prevent postoperative atelectasis formation. This is not the case if VCM is followed by application of 100% of O2. However the use of 100% of O2 before tracheal extubation is still recommended for safety reason. Application of PEEP associated with pressure controlled ventilation before intubation prevents atelectasis formation despite the use of 100% of O2. The goal of our study was to show that performing a VCM 15 minutes before arousal followed by application of PEEP and pressure support ventilation (PSV) before and after tracheal extubation will prevent the recurrence of atelectasis despite the use of 100% of O2. Materials and Methods With the ethic committee for research on human beings approval, the investigators randomly assigned 16 non-obese patients scheduled for a gynaecological laparoscopic surgery in two groups. At the end of the surgery the investigators performed a VCM (40cmH2O applied for 12 seconds), then O2 was increased to 100% in both groups. In the patients of the study group, a PEEP of 6 cmH2O was applied associated with a PSV of 8 cmH2O. This was continued after the extubation for 3 minutes. The O2 was then decreased to 40% and, when the expired oxygen saturation was < 50%, PEEP and PSV were removed. For the patients in the control group, no positive pressure was applied during spontaneous ventilation (PEEP = 0 and no PSV). The atelectasis were then measured by computed tomographic scanning.
In this study the Authors assume that peri-operative changes in DIA are predictive of postoperative atelectasis, thus providing a clinically useful tool to stratify the need for high-intensity monitoring, including admission to intensive care. Aim of this prospective observational study, in obese patients undergoing sleeve gastrectomy, is to evaluate the relationship between pre to postoperative changes in US-DIA and PaO2/FiO2.
The term postoperative pulmonary complication is the development of any complications affecting the respiratory system after anesthetic and surgery procedures. The ARISCAT risk assessment score is a seven-variable regression model that divides patients into low, moderate, and high-risk groups. In this study, the investigators aimed to investigate the effectiveness of the ARISCAT risk scoring index in predicting postoperative pulmonary complication development in patients scheduled for major abdominal cancer surgery.
In this study aimed to demonstrate that atelectasis developing in the perioperative period of patients undergoing elective cesarean surgery with spinal or general anesthesia methods using lung ultrasound. After Preoperative lung ultrasounds of patients is done, the cesarean operation will be completed with spinal or general anesthesia. In the postoperative period, control lung ultrasounds will be performed and the ultrasound results will be compared in terms of atelectasis in both groups.
The primary aim of this study is to assess the efficacy of post-operatory HFNC in reducing the incidence of hypoxemia after gynecological oncology surgery, compared to the standard application of O2 through a Venturi mask; The secondary objectives are to investigate the occurrence and entity of lung atelectasis, to evaluate diaphragmatic function and respiratory discomfort, and to evaluate the incidence of respiratory complications after seven days in the two groups. Patients will be randomized into two groups: HFNC and Control. The patients will be studied with preoperative lung and diaphragmatic ultrasound. Standard general anesthesia will be administered in the two groups. Ultrasound will be performed at arrival in the recovery room (RR) and before discharge from the RR. In the HFNC group, high-flow O2 will be administered; in the control group standard O2 therapy with Venturi mask will be administered. Arterial blood gas analysis upon arrival in the RR and after two hours of O2 therapy in both groups will be checked. The incidence of post-operative respiratory complications will be monitored in the seven days following surgery.
This is a pilot study to obtain preliminary information on the usability and efficacy of a pre-habilitation program. The investigators will recruit up to 100 patients. The two specific aims of this study are to conduct an initial pilot study with the following goals: 1. To obtain information on feasibility and utilization of the program 2. To determine whether participation in the program improves a patient's Maximal Inspiratory Pressure