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Ultrasound Guided Erector Spinae Block for Postoperative Analgesia in Thoracotomy Patients

B

Benha University

Status

Completed

Conditions

Postoperative Pain

Treatments

Procedure: Erector Spinae Plane Block

Study type

Interventional

Funder types

Other

Identifiers

NCT03749395
Erector spinae block

Details and patient eligibility

About

aim of this study is to assess and compare between the efficacy of the new U/S guided erector spinae plane block (ESP) and the conventional methods of systemic analgesics in adult patients scheduled for elective thoracotomy surgery.

Full description

Thoracotomy is considered the most painful of surgical procedures and providing effective analgesia is the onus for all anesthetists. Ineffective pain relief impedes deep breathing, coughing, and remobilization culminating in atelectasis and pneumonia.The erector spinae plane (ESP) block is a newly-described technique for treating thoracic pain, and has several advantages that make it an attractive alternative to these more invasive procedures.Ultrasound guided erector spinae (ESP) block is a regional anesthesia technique, recently described by (Forero; et al.) for use in thoracic neuropathic pain. ESP block is reported to lead to analgesic effect on somatic and visceral pain by effecting the ventral rami and rami communicantes that include sympathetic nerve fibers, as LA spreads through the paravertebral space . When performed bilaterally it has been reported to be as effective as thoracic epidural analgesia.ESP block leads to effective postoperative analgesia when performed at T 4-5 level for breast and thoracic surgery. The ESP block , will be performed as follow:The patient will be placed in a sitting position and the ultrasound probe will be placed in a longitudinal orientation 3 cm lateral to the T5 spinous process. Three muscles were identified superficial to the hyperechoic transverse process shadow as follows: trapezius, rhomboid major, and erector spinae . the needle will be inserted in a cephalad-to-caudad direction until the tip lay deep to erector spinae muscles, as evidenced by visible linear spread of fluid beneath muscle upon injection . A total of 20 mL of 0.25% bupivacaine will be injected here.

Enrollment

60 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • patients aged >18 years
  • American Society of Anesthesiologists Physical Status I or IV scheduled for elective thoracotomy

Exclusion criteria

  • Refusal of the patient to provide written consent
  • history of relevant drug allergy
  • age less than 18
  • obesity BMI > 40 kg/m2
  • infection of the skin at the site of needle puncture area
  • coagulopathy
  • Pregnant females

Trial design

Primary purpose

Prevention

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

60 participants in 2 patient groups

Erector Spinae Plane Block group
Active Comparator group
Description:
* The Erector Spinae Plane block will be done as follow,the patient will be placed in a sitting position and the ultrasound probe will be placed in a longitudinal orientation 3 cm lateral to the T5 spinous process. Three muscles were identified superficial to the hyperechoic transverse process shadow as follows: trapezius, rhomboid major, and erector spinae . the needle will be inserted in a cephalad-to-caudad direction until the tip lay deep to erector spinae muscles, as evidenced by visible linear spread of fluid beneath muscle upon injection . A total of 20 mL of 0.25% bupivacaine will be injected here. * All patients will receive general anesthesia as described in conventional group
Treatment:
Procedure: Erector Spinae Plane Block
Conventional group
No Intervention group
Description:
* Nothing will be injected * All patients will receive pre-oxygenation with O2 100% for 3 min. Anesthesia will be induced by using fentanyl 1μg/kg, propofol 1.5-2 mg/kg and atracurium 0.5 mg/kg will be used for muscle relaxation. Anesthesia will be maintained by controlled ventilation with oxygen and air (50:50) with target of EtCo2≈ 35-40 mmHg, isoflurane 1:1.5 minimum alveolar concentration (MAC), 0.5μg/kg fentanyl will be given intraoperative when either heart rate or Non Invasive Blood Pressure report an increase by more than 20% of the basal records. Anesthesia will be discontinued and tracheal extubation will be done once patient fulfilled the extubation criteria.

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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