בשל "הגנת זכויות יוצרים", מובא להלן קישור למאמר בלבד. לקריאתו בטקסט מלא, אנא פנה/י לספרייה הרפואית הזמינה לך.

Interscalene block (ISB) is the acute pain management technique of choice for shoulder surgery, but its undesirable respiratory side effects have prompted seeking alternatives.

Supraclavicular block (SCB) is proposed as an ISB alternative, but evidence of comparative analgesic and respiratory-sparing effects is inconsistent.

We compared the analgesic and respiratory effects of SCB and ISB for shoulder surgery.

Trials comparing ISB to SCB for shoulder surgery were sought. We decided a priori that SCB would be an acceptable alternative if it were noninferior for postoperative 24-hour cumulative oral morphine equivalent consumption (primary outcome, noninferiority margin Δ = −25 mg) and  postoperative pain (secondary outcome, noninferiority margin Δ = 4.0 cm·hour–1); and superior for postblock respiratory dysfunction (primary outcome).

Opioid-related side effects and block-related complications were also evaluated.