Daily ReportNov 3, 2026
Anesthesiology, November 3 edition
We read 41 papers and selected 3.
Summary
Today’s most impactful anesthesiology research spans environmental sustainability, neuromuscular blockade reversal, and procedural safety. A multinational pediatric quality-improvement consortium achieved a 63% reduction in inhaled-anesthetic greenhouse-gas emissions, while an updated meta-analysis of 165 randomized trials supported faster and safer reversal with sugammadex; a randomized trial also suggested that the oblique-axis approach may improve internal jugular cannulation safety in the left lateral position.
Research Themes
- Environmental sustainability and quality improvement in anesthesia
- Evidence-based reversal of neuromuscular blockade
- Ultrasound-guided procedural safety
Selected Articles
1. Project SPRUCE: Formation of an International Consortium of Pediatric Anesthesia Groups to Reduce Greenhouse Gas Emissions from Inhaled Anesthetics.
Project SPRUCE formed an international consortium of 12 pediatric anesthesia groups and used education, change-management strategies, practice constraints, and direct feedback to reduce inhaled-anesthetic emissions. Emissions decreased by 63% overall, nitrous oxide use declined by 62.4%, and 14,381 metric tons of carbon-dioxide-equivalent emissions were prevented.
Impact: This study moves environmental stewardship from recommendation to measurable, multicenter implementation. Its large absolute reduction and reproducible quality-improvement strategy provide a practical model for decarbonizing anesthesia services.
Clinical Implications: Anesthesia departments can combine low fresh-gas flows, avoidance of desflurane and nitrous oxide when clinically appropriate, and selective use of total intravenous or regional anesthesia with audit-and-feedback systems. Implementation should preserve patient safety and account for case-specific clinical requirements.
Key Findings
- A consortium of 12 pediatric anesthesia groups implemented coordinated emissions-reduction strategies.
- Inhaled-anesthetic greenhouse-gas emissions decreased by 63%, with a range of 43% to 91% across groups.
- Nitrous oxide use declined by 62.4%, and 14,381 metric tons of excess carbon-dioxide-equivalent emissions were prevented.
Methodological Strengths
- Multicenter international implementation involving 12 pediatric anesthesia groups.
- Combined change-management interventions with quantitative emissions tracking and direct clinical feedback.
Limitations
- The study was a quality-improvement consortium evaluation without randomization or a concurrent control group.
- The abstract does not establish the independent contribution of each intervention component or long-term patient-safety outcomes.
Future Directions: Future studies should evaluate the durability of emission reductions, patient-safety and recovery outcomes, cost-effectiveness, and implementation barriers across adult, pediatric, and resource-variable anesthesia systems.
BACKGROUND: Inhaled anesthetic use contributes to environmental harm through release of potent greenhouse gases (GHG). Emissions can be reduced with the use of safe practice changes, including avoidance of high impact agents like desflurane and nitrous oxide, use of low fresh gas flows, and adoption of total intravenous and regional anesthesia when clinically appropriate. These evidence-based practices have been recommended for years, but actual practice changes have not been widely adopted. METHODS: The Project SPRUCE (Saving our Planet by Reducing Carbon Emissions) consortium brought together twelve pediatric anesthesia groups into a partnership working to reduce GHG emissions from pediatric anesthesia care.
2. Sugammadex versus neostigmine for neuromuscular blockade reversal in adults: A systematic review and meta-analysis of randomised controlled trials.
This updated systematic review included 165 randomized trials and 19,124 adults. Compared with neostigmine, sugammadex 2 mg/kg shortened recovery from neuromuscular blockade to a train-of-four ratio greater than 0.9 by approximately 10.5 minutes and probably reduced overall adverse events, including residual blockade, desaturation, airway obstruction, and bradycardia.
Impact: The study provides the most comprehensive contemporary synthesis of a routine anesthetic decision with direct implications for postoperative respiratory safety. Its large evidence base and GRADE assessment strengthen, while also appropriately qualifying, the case for broader sugammadex use.
Clinical Implications: Sugammadex should be strongly considered for reliable and rapid reversal of rocuronium- or vecuronium-induced neuromuscular blockade, particularly when residual paralysis or respiratory complications would be hazardous. Cost, renal considerations, drug interactions, and availability should remain part of individualized decision-making.
Key Findings
- The review included 165 randomized trials with 19,124 participants, although risk of bias was generally unclear or high.
- Sugammadex 2 mg/kg shortened time to a train-of-four ratio greater than 0.9 by 10.49 minutes compared with neostigmine 0.05 mg/kg.
- Sugammadex probably reduced overall adverse events, residual neuromuscular blockade, desaturation, airway obstruction, bradycardia, and urinary retention.
Methodological Strengths
- Large updated synthesis of randomized controlled trials with meta-analysis and trial sequential analysis.
- Evidence certainty was explicitly assessed using the GRADE framework, and multiple clinically relevant adverse outcomes were evaluated.
Limitations
- Risk of bias was generally unclear or high, and neuromuscular-blockade monitoring methods were inconsistently reported.
- The analysis primarily addressed surrogate recovery and adverse-event outcomes rather than patient-centered long-term outcomes or cost-effectiveness.
Future Directions: Future trials should use standardized quantitative neuromuscular monitoring, report patient-centered respiratory outcomes, and compare cost-effectiveness across surgical risk groups and healthcare systems.
BACKGROUND: Reversal of neuromuscular blockade (NMB) is a routine component of general anaesthesia with important implications for recovery quality and peri-operative safety. Recent changes in the cost of sugammadex, together with its efficacy and adverse effect profile relative to neostigmine, may influence its broader clinical use. OBJECTIVES: To evaluate the efficacy and safety of sugammadex compared with neostigmine in adult patients. DESIGN: Systematic review of randomised controlled trials with meta-analyses and trial sequential analyses. Certainty of evidence was assessed using the Grades of Recommendation, Assessment, Development and Evaluation (GRADE) framework. This is an update of a 2017 Cochrane review.
3. Comparison of ultrasound-guided oblique-axis versus short-axis approaches for right internal jugular vein cannulation in the left decubitus position: a prospective, randomized, single-center trial.
In 74 anesthetized patients requiring right internal jugular vein cannulation in the left lateral position, the ultrasound-guided oblique-axis approach achieved a higher first-puncture success rate than the short-axis approach and required fewer punctures. Mechanical complications occurred in 0% versus 16.2%, although the primary endpoint was borderline by Fisher’s exact test and complication estimates were imprecise.
Impact: This trial addresses a technically difficult but clinically relevant vascular-access scenario and proposes a simple modification of ultrasound probe and needle orientation. The safety signal is promising, while the study appropriately highlights the need for larger confirmatory trials.
Clinical Implications: For patients who must remain in the left lateral position, an ultrasound-guided oblique-axis approach may improve first-pass cannulation and reduce posterior-wall penetration or arterial puncture. Clinicians should adopt it selectively because the trial was small, single-center, and performed by highly experienced operators.
Key Findings
- First-time puncture success was 73.0% with the oblique-axis approach versus 48.6% with the short-axis approach.
- Median venipuncture attempts were lower with the oblique-axis approach, while total procedure time did not differ significantly.
- Mechanical complications occurred in 0% of the oblique-axis group and 16.2% of the short-axis group; overall cannulation success was 100% in both groups.
Methodological Strengths
- Prospective randomized design with complete analysis of all 74 randomized patients.
- Standardized real-time ultrasound guidance, patient position, Trendelenburg angle, and experienced operators.
Limitations
- The single-center sample was small, and operators had extensive experience, limiting generalizability to less experienced clinicians.
- The primary-endpoint evidence was borderline by Fisher’s exact test, and mechanical-complication estimates were imprecise.
Future Directions: Larger multicenter trials should confirm the effect in different operator-experience levels, evaluate clinically important complications with adequate power, and assess learning curves and procedure-specific training requirements.
BACKGROUND: Central venous cannulation in the left decubitus position is more difficult than in the supine position and may be required when patients cannot safely return to supine. Whether the oblique-axis (OA) approach improves the success and safety of right internal jugular vein (RIJV) cannulation compared with the short-axis (SA) approach remains unknown. METHODS: Seventy-four patients (ASA I-III) scheduled for elective surgery in the left decubitus position under general anesthesia requiring RIJV cannulation were randomly assigned 1:1 to the OA or SA group (n = 37 each). Under real-time ultrasound guidance and a 20° Trendelenburg tilt, cannulation was performed by one of three experienced attending anesthesiologists, each with more than 15 years of experience in ultrasound-guided central venous cannulation.