Lit Matters #2: A new approach to central venous line placement

Ultrasound-guided internal jugular access remains the default central venous catheter approach in emergency medicine, but the supraclavicular subclavian route may offer better first-pass success. Immediate complication rates including arterial puncture and pneumothorax were similar across neck and periclavicular sites in this review.

Ultrasound CVC Site Selection

• Internal jugular default choice: IJ access remains a solid emergency department standard because it is familiar, ultrasound-friendly, and not clearly inferior to other sites on immediate safety outcomes.
• Supraclavicular subclavian edge: The supra-subclavian approach had the best first-pass performance in the network meta-analysis, with a relative improvement of about 22% over comparators.
• Arterial puncture comparison: Arterial puncture rates did not differ meaningfully from IJ across supra-subclavian, infra-subclavian, or axillary approaches, which is the key safety reassurance here.
• Pneumothorax signal: Pneumothorax was not meaningfully higher than IJ for the alternative approaches studied, despite the usual concern around subclavian-region cannulation.
• Hematoma reduction possibility: Supra-subclavian access may reduce hematoma compared with IJ, an interesting possible advantage that we put in practical context in the episode.
• Distal axillary drawback: Distal axillary access had the weakest first-pass success, making it a less attractive option when procedural efficiency matters.

How To Apply The Evidence

• Expert operator limitation: All lines in the included trials were placed by expert operators, so the apparent benefit of supra-subclavian access may not translate directly to typical ED training environments.
• Non-ED study settings: The evidence came from ICU and operating room patients rather than emergency department resuscitations, which limits bedside generalizability for unstable patients.
• Sedation and patient factors: Sedation was not standardized and BMI data were incomplete, leaving important real-world modifiers of access difficulty and complication risk unresolved.
• Practice change question: The practical takeaway is not to abandon IJ, but to consider whether learning the supraclavicular subclavian technique adds a useful second option. We get into where that might fit on the show.