Clinical trial NCT05476393: ESPB vs TPVB for Cardiac Surgery
Official title: Comparison of Effectiveness of Erector Spinae Plane Block and Thoracal Paravertebral Block for Postoperative Analgesia After Cardiovascular Surgery: Randomized Study
Study type: INTERVENTIONAL
Overall status: WITHDRAWN
Phase: NA
Conditions: Cardiovascular Diseases
Keywords: Cardiovascular surgery
Postoperative pain management
Erector Spinae Plane Block
Thoracal paravertebral block
Lead sponsor: Medipol University
Sponsor class: OTHER
First posted: 2022-07-27
Enrollment: 0
Sex: ALL
Minimum age (years): 18
Maximum age (years): 70
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: There are two models for this study. The first group is erector spinae plane block group. The second one is thoracal paravertebral block group.
Primary purpose: TREATMENT

Brief summary: Pain is a common and serious problem after cardiovascular surgery. It is associated with increased morbidity and mortality, and additional risk factors of cardiac surgery such as sternotomy and cardiopulmonary bypass contribute to this. Patient-controlled analgesia with intravenous opioids is standard in many centers for the management of pain after cardiac surgery. However, intravenous opioids have a higher risk of nausea and vomiting and may delay weaning from mechanical ventilation compared to regional techniques. Elderly patients have a higher risk of opioid-related complications, and regional techniques can help reduce postoperative ventilation time and accelerate postoperative recovery, which will reduce the risk of atelectasis, especially in the elderly population. Thoracic paravertebral block (TPVB) is difficult to apply due to its anatomical proximity to important structures such as the pleura and central neuraxial system, and may cause complications such as pneumothorax and vascular injury. Analgesia management is very important in these patients, since insufficient analgesia may cause pulmonary complications such as atelectasis, pneumonia, and increased oxygen consumption in the postoperative period.

Erector spina plane (ESP) block performed with ultrasound (US) is a new interfacial plane block defined by Forero et al. in 2016. If the ESP block is applied at the T5 level, it provides thoracic analgesia, if it is applied at the T7-9 level, it provides analgesia in the abdominal region.

In this study, it is aimed to compare the effectiveness of US-guided ESP block and TPVB for postoperative analgesia management after cardiovascular surgery. Our primary aim is to compare postoperative pain scores (NRS), and our secondary aim is to evaluate rescue analgesia using, opioid-related side effects (allergic reaction, nausea, vomiting) and complications that may occur due to block (pneumothorax, hematoma).

Detailed description: Pain is a common and serious problem after cardiovascular surgery. It is associated with increased morbidity and mortality, and additional risk factors of cardiac surgery such as sternotomy and cardiopulmonary bypass contribute to this. Patient-controlled analgesia with intravenous opioids is standard in many centers for the management of pain after cardiac surgery. However, intravenous opioids have a higher risk of nausea and vomiting and may delay weaning from mechanical ventilation compared to regional techniques. Elderly patients have a higher risk of opioid-related complications, and regional techniques can help reduce postoperative ventilation time and accelerate postoperative recovery, which will reduce the risk of atelectasis, especially in the elderly population. Thoracic paravertebral block (TPVB) is difficult to apply due to its anatomical proximity to important structures such as the pleura and central neuraxial system, and may cause complications such as pneumothorax and vascular injury. Analgesia management is very important in these patients, since insufficient analgesia may cause pulmonary complications such as atelectasis, pneumonia, and increased oxygen consumption in the postoperative period.

Erector spina plane (ESP) block performed with ultrasound (US) is a new interfacial plane block defined by Forero et al. in 2016. If the ESP block is applied at the T5 level, it provides thoracic analgesia, if it is applied at the T7-9 level, it provides analgesia in the abdominal region. This block is applied by injecting a solution containing local anesthetic into the fascia under the erector spina muscle. Since the application site of the ESP block is far from the pleura and neuraxial tissues, it minimizes the risk of complications due to injury to these structures. Sonoanatomy is easy to visualize on US and the spread of local anesthetic can be seen easily. With the cephalo-caudal spread of the local anesthetic solution, analgesia occurs in several dermatomes. Cadaveric studies have shown that the injection spreads to the ventral and dorsal roots of the spinal nerves and creates sensory blockade in both the anterolateral thorax and the posterior. In the literature, it has been reported that it provides effective analgesia in randomized controlled studies investigating the effectiveness of ESP block for postoperative analgesia management after open heart surgery, breast surgery and ventral hernia repair.

In this study, it is aimed to compare the effectiveness of US-guided ESP block and TPVB for postoperative analgesia management after cardiovascular surgery. Our primary aim is to compare postoperative pain scores (NRS), and our secondary aim is to evaluate rescue analgesia using, opioid-related side effects (allergic reaction, nausea, vomiting) and complications that may occur due to block (pneumothorax, hematoma).

Eligibility criteria: Inclusion Criteria:

* American Society of Anesthesiologists (ASA) classification I-III
* Scheduled for cardiovascular surgery under general anesthesia

Exclusion Criteria:

* Bleeding diathesis
* anticoagulant treatment
* local anesthetics and opioid allergy
* Infection of the skin at the site of the needle puncture
* Patients who do not accept the procedure

Primary outcomes:
measure: Postoperative pain scores (Numerical Ratin Scala; 0=no pain, 10=the worst pain felt)
timeFrame: Postoperative 24 hours period
Secondary outcomes:
measure: The need for rescue analgesia
timeFrame: Postoperative 24 hours period
Other outcomes:
Locations:
city: Istanbul
country: Turkey
facility: Istanbul Medipol University Hospital
state: Bagcilar
Study officials:
References:
citation: El Shora HA, El Beleehy AA, Abdelwahab AA, Ali GA, Omran TE, Hassan EA, Arafat AA. Bilateral Paravertebral Block versus Thoracic Epidural Analgesia for Pain Control Post-Cardiac Surgery: A Randomized Controlled Trial. Thorac Cardiovasc Surg. 2020 Aug;68(5):410-416. doi: 10.1055/s-0038-1668496. Epub 2018 Aug 16.
citation: Nagaraja PS, Ragavendran S, Singh NG, Asai O, Bhavya G, Manjunath N, Rajesh K. Comparison of continuous thoracic epidural analgesia with bilateral erector spinae plane block for perioperative pain management in cardiac surgery. Ann Card Anaesth. 2018 Jul-Sep;21(3):323-327. doi: 10.4103/aca.ACA_16_18.
citation: Forero M, Adhikary SD, Lopez H, Tsui C, Chin KJ. The Erector Spinae Plane Block: A Novel Analgesic Technique in Thoracic Neuropathic Pain. Reg Anesth Pain Med. 2016 Sep-Oct;41(5):621-7. doi: 10.1097/AAP.0000000000000451.
citation: D'Ercole F, Arora H, Kumar PA. Paravertebral Block for Thoracic Surgery. J Cardiothorac Vasc Anesth. 2018 Apr;32(2):915-927. doi: 10.1053/j.jvca.2017.10.003. Epub 2017 Oct 4.