ESRA Academy. Pedrosa F. Sep 8, 2016; 138532; 0397 Topic: Breast surgery
Filipa Pedrosa
Filipa Pedrosa

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Background and Aims:

Blocking the lateral and medial pectoral nerves using the Interpectoral Fascia (PECS) block has been described as an anesthetic and analgesic technique for thoracic wall surgery. We present the preliminary results of a prospective, descriptive, double-blind study intended to evaluate effectiveness of PECS block as a post-operative analgesic strategy for reconstructive breast surgery. We also aim to prove its safety, the reduction in post-operative opioid consumption and its unwanted effects.


Total intravenous anesthesia was delivered. At the end of surgery, patients were given acetaminophen, parecoxib and ultrasound-guided PECS block, using ropivacaine 0.375% (10mL). Rescue analgesia with tramadol was available. Demographic data was registered. An evaluation form was used to record numeric pain scale (NPS) by the nursing team at the 1st (T1), 6th (T6), 12th (T12) and 24th (T24) post-operative hours.


Seventeen female patients were included. The majority was classified as ASA PS II.Average age was 49.63 years-old (±11.70). At T1, average NPS was 2.88 (±3.07), with 52.94% of the patients having NPS≤3. Six patients requested tramadol at this time. More than 75% presented NPS≤3 at T6 and T12; 76.47% (n=13) had no pain at T6. No patient had severe pain at T6, T12 and T24. No complications were registered.


The PECS block is an effective analgesic technique for breast reconstructive surgery and allows reduction of opioid consumption and its undesirable effects. It should be considered as an alternative to conventional analgesia. A prospective study comparing both approaches is needed.

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