Clinical application of ultrafast channel cardiac anesthesia assisted by serratus anterior plane block in right-thoracoscopic minimally invasive cardiac surgery: a retrospective cohort study

Objectives: This study aimed to investigate the effects of ultrafast channel cardiac anesthesia assisted by serratus anterior plane block on the post-operative rehabilitation of patients undergoing right-sided thoracoscopic minimally invasive cardiac surgery, as well as the safety and feasibility of the clinical application of this technique. Background: Regional nerve block has previously been used in cardiac surgery to reduce intraoperative opioid use and promote anesthesia in fast-track and ultra-fast-track cardiac surgery. However, the clinical application of ultrafast cardiac anesthesia assisted by serratus anterior plane block (SAPB) in minimally invasive cardiac surgery under thoracoscopy has not been reported. Methods: A total of 102 patients who underwent right-sided thoracoscopic minimally invasive heart valve surgery in our center from January 2021 to August 2021 were enrolled and divided into two groups: an ultrafast channel cardiac anesthesia assisted by serratus anterior plane block (SAPB-GA) group (n=40) and a conventional general anesthesia (GA) group (n=62). The effects of ultrafast cardiac anesthesia assisted by serratus anterior plane block (SAPB) on post-operative rapid recovery as well as the safety and feasibility of its clinical application were compared and analyzed. Results: Compared to the GA group, the intraoperative use of sufentanil in the SAPB-GA group was significantly reduced (66.25±1.025, 283.31±11.362, P<0.001); the incidence of postoperative analgesia in ICU was significantly decreased (17%, 48.8%, P<0.001); the incidence of postoperative NRS≥3 in ICU was significantly decreased (15%, 37.1%, P = 0.016); and the postoperative extubation time (1(1-1), 13.84 (10.25-18.36), P<0.001), ICU stay time (28.58±2.838, 61.69±4.125, P<0.001) and postoperative hospital stay (8.08±0.313, 9.74±0.356, P=0.02) were significantly shortened; and the 24 h postoperative thoracic blood drainage was significantly reduced (209.63±25.645, 318.23±20.713, P<0.001). No statistical difference was observed in the incidence of postoperative nausea, vomiting and atelectasis between the two groups (all P>0.05). Both of the groups reported no postoperative cardiovascular events. Conclusions: Ultrafast channel cardiac anesthesia assisted by SAPB could promote the rapid postoperative recovery of patients undergoing minimally invasive cardiac surgery under a thoracoscope. This approach is safe and feasible in the clinic.

The Anesthesiologist’s Perspective and Experience in Global Congenital Cardiac Surgery: Results of a Survey of the Congenital Cardiac Anesthesia Society Membership

Anesthesiologists are important components of volunteer teams which perform congenital cardiac surgery in low-resource settings throughout the world, but limited data exist to characterize the nature and breadth of their work. A survey of Congenital Cardiac Anesthesia Society (CCAS) members was conducted with the objective of understanding the type of voluntary care being provided, its geographic reach, the frequency of volunteer activities, and factors which may encourage or limit anesthesiologists’ involvement in this work. The survey was completed by 108 participants. Respondents reported a total of 115 volunteer trips during the study period, including work in 41 countries on 5 continents. Frequent motivating factors to begin volunteering included invitations from charitable groups, encouragement from senior colleagues, and direct connections to individual locations. Discouraging factors included familial responsibilities, the need to use vacation time, and a lack of support from home institutions. The year 2020 saw a marked decrease in reported volunteer activity, and respondents reported multiple pandemic-related factors which might discourage future volunteer activities. The results of this study demonstrate the global reach of anesthesiologists in providing care for children having cardiac surgery. It also offers insights into the challenges faced by interested individuals, many of which are related to a lack of institutional support. These challenges have only mounted under the COVID-pandemic, leading to a dramatic downturn in volunteer activities. Finally, the survey reinforces the need for better coordination of volunteer activities to optimize clinical impact.

Postoperative Changes in Pulmonary Function after Valve Surgery: Oxygenation Index Early after Cardiopulmonary Is a Predictor of Postoperative Course

Objective: To determine pulmonary functional changes that predict early clinical outcomes in valve surgery requiring long cardiopulmonary bypass (CPB). Methods: This retrospective study included 225 consecutive non-emergency valve surgeries with fast-track cardiac anesthesia between January 2014 and March 2020. Blood gas analyses before and 0, 2, 4, 8, and 14 h after CPB were investigated. Results: Median age and EuroSCORE II were 71.0 years (25–75 percentile: 59.5–77.0) and 2.46 (1.44–5.01). Patients underwent 96 aortic, 106 mitral, and 23 combined valve surgeries. The median CPB time was 151 min (122–193). PaO2/FiO2 and AaDO2/PaO2 significantly deteriorated two hours, but not immediately, after CPB (both p < 0.0001). Decreased PaO2/FiO2 and AaDO2/PaO2 were correlated with ventilation time (r2 = 0.318 and 0.435) and intensive care unit (ICU) (r2 = 0.172 and 0.267) and hospital stays (r2 = 0.164 and 0.209). Early and delayed extubations (<6 and >24 h) were predicted by PaO2/FiO2 (377.2 and 213.1) and AaDO2/PaO2 (0.683 and 1.680), measured two hours after CPB with acceptable sensitivity and specificity (0.700–0.911 and 0.677–0.859). Conclusions: PaO2/FiO2 and AaDO2/PaO2 two hours after CPB were correlated with ventilation time and lengths of ICU and hospital stays. These parameters suitably predicted early and delayed extubations.