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COMMENTARY
Year : 2020  |  Volume : 14  |  Issue : 2  |  Page : 291-292

Will ESP block be the gold standard for breast surgery? We are not sure


UOC Anaesthesia and Intensive Care Unit, Department of Medicine-DIMED, University of Padua, Padua, Italy

Correspondence Address:
Dr. Alessandro De Cassai
UOC Anaesthesia and Intensive Care Unit, Department of Medicine-DIMED, University of Padua, Padua
Italy
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/sja.SJA_776_19

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Date of Submission12-Dec-2019
Date of Acceptance16-Dec-2019
Date of Web Publication5-Mar-2020
 


How to cite this article:
Cassai AD, Andreatta G. Will ESP block be the gold standard for breast surgery? We are not sure. Saudi J Anaesth 2020;14:291-2

How to cite this URL:
Cassai AD, Andreatta G. Will ESP block be the gold standard for breast surgery? We are not sure. Saudi J Anaesth [serial online] 2020 [cited 2020 Mar 30];14:291-2. Available from: http://www.saudija.org/text.asp?2020/14/2/291/280098



Postoperative pain following breast surgery is complex in its origin, severe, long-lasting and it is complicated by a high incidence of chronic postoperative pain (25–60%).[1]

Many strategies for pain relief have been proposed (such as paravertebral block, epidural as a single or continuous infusion, PECS block) but the best method is still to be determined.[2],[3]

An article published in this issue of the Saudi Journal of Anaesthesia explored the efficacy of erector spinae plane block (ESP) for postoperative analgesia in total mastectomy and axillary clearance.[4]

The main result of the study is a significant reduction in morphine consumption and postoperative pain up to 24 h in the ESP block group compared to the general anesthesia one.

Postoperative pain after breast surgery arises from two major contributors: intercostal nerves (T2–T6) and brachial plexus (medial pectoral nerve, lateral pectoral nerve, long thoracic nerve, and thoracodorsal nerve). Although brachial plexus provides mainly motor fibers to the breast area, it should not be neglected. Nerves arising from such plexus are involved both in acute pain (e.g., muscle contraction) and in chronic pain (e.g., chronic pain following long thoracic nerve resection).

ESP block is able to provide analgesia to both districts: as Forero et al. clearly showed, an ESP block performed at T2–T3 level with a sufficient volume of injectate can easily spread upward until C3, covering brachial plexus origins and potentially the plexus itself; furthermore, ESP block action on intercostal nerves is widely demonstrated both in anatomical and in radiological studies.[5],[6]

For this reason, this study sheds new light on the management of pain relief following breast surgery. ESP block is, indeed, an easy to learn and to perform technique being the target a bone structure at a depth of 3–4 cm at thoracic level; moreover, this block has few side effects and it is possible to perform it also in patients with suboptimal coagulation.[7] Although this is not the first study comparing ESP block and general anesthesia, their similar results strengthen the evidence of each other.[8] On the contrary, the comparison between ESP block and other routinary locoregional techniques for breast surgery is still anecdotal.

It appears too early than to come to conclusions on any supremacy: even the most enthusiasts are aware that the evidence on ESP block for both acute and chronic pain following breast surgery is too little to provide high-grade recommendations. The results of studies as the aforementioned in this issue of the Saudi Journal of Anaesthesia are nonetheless encouraging. Interest in this novel technique is indeed growing and evidence with it: a quick search on Clinicaltrials.gov reveals that several studies comparing ESP block with both locoregional techniques are ongoing or planned.

Is a future in which ESP block will be part of daily practice foreseeable?



 
  References Top

1.
Andersen KG, Kehlet H. Persistent pain after breast cancer treatment: A critical review of risk factors and strategies for prevention. J Pain 2011;12:725-46.  Back to cited text no. 1
    
2.
Chhabra A, Prabhakar H, Subramaniam R, Arora MK, Srivastava A, Kalaivani M. Paravertebral anaesthesia with or without sedation versus general anaesthesia for women undergoing breast cancer surgery. Cochrane Database Syst Rev 2018;2018:CD012968.  Back to cited text no. 2
    
3.
De Cassai A, Bonanno C, Sandei L, Finozzi F, Carron M, Marchet A. PECS II block is associated with lower incidence of chronic pain after breast surgery. Korean J Pain 2019;32:286-91.  Back to cited text no. 3
    
4.
Suresh S, Abhijit SN, Asiel C, Omkar U, Vibhavari N, Basanth KR. Efficacy of single-shot ultrasound-guided erector spinae plane block for postoperative analgesia after mastectomy: A randomized controlled study. Saudi J Anaesth 2020;14:22-7.  Back to cited text no. 4
    
5.
Forero M, Rajarathinam M, Adhikary SD, Chin KJ. Erector spinae block for the management of chronic shoulder pain: A case report. Can J Anaesth 2018;65:288-93.  Back to cited text no. 5
    
6.
De Cassai A, Andreatta G, Bonvicini D, Boscolo A, Munari M, Navalesi P. Injectate spread in ESP block: A review of anatomical investigations. J Clin Anesth 2019:109669. doi: 10.1016/j.jclinane. 2019.109669.  Back to cited text no. 6
    
7.
De Cassai A, Ieppariello G, Ori C. Erector spinae plane block and dual antiplatelet therapy. Minerva Anestesiol 2018;84:1230-1.  Back to cited text no. 7
    
8.
Gurkan Y, Aksu C, Kus A, Yorukoglu OH, Kilic CT. Ultrasound-guided erector spinae plane block reduces postoperative opioid consumption following breast surgery: A randomized control trial. J Clin Anesth 2018;50:65-8.  Back to cited text no. 8
    




 

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