• Romualdo Del Buono, Eleonora Padua, Giuseppe Pascarella, Corina Gabriela Soare, and Enrico Barbara.
• Anesthesia, Humanitas Mater Domini, Castellanza, Italy romualdodelbuono@gmail.com.
• Reg Anesth Pain Med. 2020 Oct 1; 45 (10): 835-838.

IntroductionThe pericapsular nerve group (PENG) block is a novel regional technique indicated for analgesia for hip joint pain. We administered PENG blocks and performed catheter insertion for continuous infusions in patients with femur fractures on hospital admission. In this case series, we describe our initial experience of pain management in 10 patients with continuous infusion and its associated adverse events.Case SeriesThe PENG block was administered with an introducer needle. The catheter was then inserted 3 cm beyond the needle tip. In three patients, blood aspiration through the catheter occurred. In each patient, the catheter was repositioned 0.5-1.0 cm more medially. No blood aspiration or visible hematoma occurred subsequently. The presence of any vascular structure deep to the iliopsoas muscle was excluded postoperatively based on a Doppler color flow scan.DiscussionOverall, eight patients had femoral neck fractures, and two patients had intertrochanteric fractures. All 10 patients reported good pain relief. The median (IQR) Numerical Rating Scale (NRS) score decreased from 7 (6-7) before the block to 2 (2-2.75) 20 min after PENG catheter placement. The median (IQR) NRS score after 12, 24 and 48 hours were 2 (2-3), 2 (2-3), and 2 (0.25-2), respectively. Patients underwent surgery 24-48 hours following catheter placement. Catheters were removed by an Acute Pain Service nurse 72 hours postinsertion. We want to highlight the potential for intravascular catheter placement in this anatomical region. Further studies are required to confirm if this is a technical error or an associated complication of continuous PENG blocks.© American Society of Regional Anesthesia & Pain Medicine 2020. No commercial re-use. See rights and permissions. Published by BMJ.

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