National Multidisciplinary Survey of Regional Anesthesia Preferences in Breast Reconstruction.

Background: The purpose of this work was to determine the regional anesthesia preferences of plastic surgeons (PS) and anesthesiologists (A) involved in breast reconstruction in Canada.

Methods: Online surveys were sent to members of the Canadian Society of Plastic Surgeons (CSPS) and the Canadian Anesthesiologists Society (CAS). The primary outcome was regional anesthesia preferences in breast reconstruction (delayed, immediate, alloplastic, autologous). Secondary outcomes included the availability and the influence of specialty and academic status on preferences. Statistical analysis used descriptive statistics and Pearson χ test.

Results: Responses from CSPS and CAS totaled 141 (response rate = 30%) and 217 (response rate = 14%), respectively. Compared with non-academic centres (NAC), academic centres (AC) had significantly greater access to (AC = 60%, NAC = 39%, = .001) and preferred to use regional anesthesia more often (AC = 36%, NAC = 10%, < .001). The following proportions of physicians preferred to use regional anesthesia: 40% (PS = 32%, A = 44%, = .081) for immediate alloplastic reconstruction, 23% (PS = 24%, A = 22%, = .821) for delayed alloplastic reconstruction, 34% (PS = 18%, A = 41%, < .001) for immediate autologous reconstruction, and 19% (PS = 13%, A = 21%, = .195) for delayed autologous reconstruction. Regional anesthesia preferences were significantly different between plastic surgeons and anesthesiologists ( < .001)-anesthesiologists favoured paravertebral blocks for all reconstructions, while plastic surgeons favoured pectoral nerve blocks for immediate alloplastic reconstruction and intercostal nerve blocks for all other reconstructions.

Conclusions: Plastic surgeons and anesthesiologists prefer not to use regional anesthesia in the majority breast reconstructions. Among those who deploy regional anesthesia, plastic surgeons and anesthesiologist have divergent preferences with respect to modality. There is a need for a prospective study comparing paravertebral blocks and intercostal nerve blocks.