|LETTERS TO EDITOR
|Year : 2018 | Volume
| Issue : 8 | Page : 638-639
Continuous ultrasound-guidederector spinae plane block for post-operative pain management in lumbar spine surgery: A case series
Neeeraj Kumar Chaudhary, Swati Singh
Department of Anaesthesiology, Indira Gandhi Institute of Medical Science, Patna, Bihar, India
|Date of Web Publication||13-Aug-2018|
Dr. Swati Singh
4A/8, Jagdamba Path, North SK Puri, Boring Road, Patna - 800 013, Bihar
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Chaudhary NK, Singh S. Continuous ultrasound-guidederector spinae plane block for post-operative pain management in lumbar spine surgery: A case series. Indian J Anaesth 2018;62:638-9
|How to cite this URL:|
Chaudhary NK, Singh S. Continuous ultrasound-guidederector spinae plane block for post-operative pain management in lumbar spine surgery: A case series. Indian J Anaesth [serial online] 2018 [cited 2020 Nov 26];62:638-9. Available from: https://www.ijaweb.org/text.asp?2018/62/8/638/238899
The erector spinae plane (ESP) block is a newly described regional anaesthetic technique involving local anaesthetic injection in a paraspinal plane deep to the erector spinae muscle. It was first described for thoracic neuropathic pain when performed at the T5 transverse process. Later when performed at further lower thoracic level, it was useful for abdominal surgeries. In this block, dorsal and ventral rami of both thoracic and abdominal nerves are blocked., We hypothetised that it can be useful for even lumbar spine surgery if performed bilaterally further lower at the T10 transverse process. This is possible because erector spinae muscle extends to the lumbar spine. We can extend the duration of analgesia if a catheter is inserted in this space.
Lumbar spine surgery requires extensive dissection of subcutaneous tissues, bones, and ligaments and thus results in considerable degree of postoperative pain. This pain generally lasts for 4–5 days. The epidural technique involves the midline plane which is at the surgical site, and is not preferred by many surgeons. In this correspondence, we report three male patients of the American Society of Anesthesiologists physical status 1 and 2, between age group of 45 and 60 years and with body weight 65–70 kg in whom a catheter was inserted bilaterally in a plane deep to the erector spinae muscle and used for perioperative pain management during lumbar spine surgery (laminectomy/discoidectomy).
Before induction of anaesthesia, patients were placed in the left lateral position. A high-frequency linear probe was placed in longitudinal position 2–3 cm lateral to tenth thoracic vertebrae. Then, the trapezius and erector spinae muscles were identified from the surface. [Figure 1]a After identifying the structures, we gave 3 ml 2% lignocaine on the entry point on the skin for local analgesia. We used a 18G Touhy needle along the plane of the transducer and the T 10 transverse process was hit. [Figure 1]d The needle was slightly withdrawn, and a 20G catheter was threaded through the needle under direct vision 2–3 cm beyond the needle tip in the ESP space. [Figure 1]b and [Figure 1]c This was repeated on the other side also. Once we secured the catheters bilaterally, we injected 20 ml 0.25% bupivacaine through both the catheters [Figure 1]. Twenty minutes later, a sensory blockade to cold was evident between T7-T 8 and L2-L3 vertebral level in anterior, lateral, and posterior part on both sides. This was not accompanied by any haemodynamic changes. General anaesthesia was given and through each catheter, 6 ml/h 0.25% bupivacaine infusion were started. In the intraoperative period, patients remained haemodynamicaly stable in spite of not using any additional analgesia apart from intravenous fentanyl 2 mcg/kg BW. Postoperatively, bupivacaine infusion was continued in post-operative anaesthesia care unit. Every 4 h, patient was assessed for pain on 11 point rating by numerical rating scale (NRS), patients were asked to circle the number between 0 and 10 (0 no pain, 10 worst pain) [Table 1]. No added analgesia was given if NRS remained below 3, but if the patient had higher NRS score rescue analgesia was given with intravenous 0.05 mg/kg morphine. ESP catheter was removed on the third postoperative day. There was no additional analgesia required in our three patients. The catheter was paraspinal, away the from midline thus not intruding into the surgical field. Thus, bilateral ESP blocks are a safe and effective technique for postoperative pain management after spine surgery. Prolonged analgesia can be maintained by inserting a catheter in the interfascial plane.
|Figure 1: (a) Identification of three muscles from above trapezius, rhomboideus major and erector spinae. (b) and (c) distal tip of catheter fixed on skin surface. (d) needle tip below erector spinae muscle for drug injection for erector spinae block|
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|Table 1: Numerical pain score rating at different time intervals post-operatively in the patients|
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Declaration of patient consent
The authors certify that they have obtained all appropriate patient consent forms. In the form the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.
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Conflicts of interest
There are no conflicts of interest.
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