Effectiveness of Combined Erector Spinae and Pecto-intercostal Fascial Plane Blocks Versus Thoracic Paravertebral Block in Perioperative Pain in Modified Radical Mastectomy

Modified Radical Mastectomy Clinical Trial

Official title:

The Effectiveness of Combined U.S. Guided Erector Spinae and Pecto-intercostal Fascial Plane Blocks Versus U.S.Guided Thoracic Paravertebral Block in Controlling Perioperative Pain in Modified Radical Mastectomy, a Blinded Randomized Controlled Trial

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04778267
• Other study ID #: MD-342-2020
• Status: Completed
• Phase: Phase 4
• Start date: March 12, 2021
• Est. completion date: March 10, 2023

Study information

• Verified date: March 2023
• Source: Kasr El Aini Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Erector spinae plane block (ESPB) is a new evolving fascial pain block in the era of regional anaesthesia. ESPB was applied in varieties of surgeries and provided an eminent role in trauma patient especially those with fracture ribs. ESPB exhibits simple, safe and easy technique with minimal or no sympathetic blockade effects, thus gaining popularity in wide range of surgeries. The optimum effective dose of local anaesthetic, the effective volume of drug used for desired dermatomes. Comparison with different regional blocks is preferable to know the optimum analgesic technique for those population of patients (4). Many studies have already compared solo ESPB with thoracic epidural analgesia (TEA), thoracic paravertebral block (TPVB), serratus anterior plane block (SAPB) and pectoral nerves block. Only few case reports described the combination effect of rhomboid intercostal, transversus thoracic muscle and parasternal plane blocks to ESPB in modified radical mastectomy.

Description:

patients scheduled for modified radical mastectomy and axillary dissection under general anesthesia (GA) will be included in the study. The patients will be randomly allocated by a computer-generated table into one of the two study groups.Thoracic paravertebral block group (TPV group) and combined erector spinae and pecto-intercostal fascial plane blocks group (ES-PI group).

0.25% bupivacaine and 1 mg dexamethasone will be injected with different volumes in each block.

The first time to ask for rescue analgesia post-operatively will be measured. Using MedCalc Software version 14 (MedCalc Software bvba, Ostend, Belgium), 24 patients (12 patients per group) were calculated for a relative difference of 10% (0.635 hours) in the time to first analgesic request between both groups, with a study power of 95% and an alpha error of 0.05. This number will be increased to 30 patients (15 patients per group) to compensate for possible dropouts.

Analysis of data will be performed using the Statistical Package for Social Science (SPSS) software, version 21 for Microsoft Windows (SPSS Inc., Chicago, iL, USA). Categorical data will be reported as numbers and percentages and will be analyzed using the chi-squared test. Continuous data will be checked for normality using the Kolmogorov-Smirnov test. Normally distributed data will be presented as means (standard deviations) and will be analyzed using the unpaired student t-test. Skewed data will be expressed as medians(quartiles) and will be analyzed using the Mann Whitney U test. For repeated measures, a two-way repeated measures ANOVA will be used to evaluate block (between-groups factor) and time (repeated measures)". Post-hoc pairwise comparison will be performed using the Bonferroni test. A P value of 0.05 or less will be considered significant.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 30
• Est. completion date: March 10, 2023
• Est. primary completion date: March 9, 2023
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years to 60 Years

Eligibility

Inclusion Criteria:

• • 18-60 years of age

• ASA I-II

• Elective unilateral modified radical mastectomy with axillary lymph node dissection

• Body weight (50-90 kg)

Exclusion Criteria:

• • Patient refusal

• Known allergy to any of the study drugs

• Bleeding disorders (platelets < 50 000, PC <60%, INR>1.5)

• Infection at the site of needle puncture or sepsis

• Obesity (BMI > 30 kg/m2)

• Chronic opioid user eg; morphine addict

• Chronic pain disease eg certain cancer patients, rheumatological disease

• Inability to comprehend or use the numeric rating pain scoring system

• Psychiatric illness eg, psychiatric patients on hypnotic treatment

Related Conditions & MeSH terms

• Modified Radical Mastectomy

Intervention

Drug:
• Bupivacaine Hydrochloride
We hypothesize that combined ESPB and PIPB are as effective as TPVB in controlling perioperative pain in patients undergoing modified radical mastectomy (MRM) with lesser complications using bupivacaine hydrocloride
• Dexamethasone phosphate
used as additive to bupivacaine

Locations

Country	Name	City	State
Egypt	Kase Al Aini teaching hospital	Cairo	Kasr Al Aini

Sponsors (1)

Lead Sponsor	Collaborator
Kasr El Aini Hospital

Country where clinical trial is conducted

Egypt, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	The first time to ask for rescue analgesia post-operatively	after how many hours postoperatively the patient will ask for analgesia	48 hours
Secondary	The total postoperative opioid consumption (in the first 48 hrs)	total milligrams of opioid given to the patient in the 48 hours postoperatively	48 hours
Secondary	NRS scores	Postoperative pain will be assessed, using numeric rating scale (NRS)	48 hours postoperative