Comparative study of Erector Spinae Plane Block in comparison with Intercostal Block in patients in need of chest tube fixation.

Comparing the effects of Erector Spinae Block and Intercostal block on the level of analgesia in patients undergoing chest tube placement.

A clinical trial with a control group, with parallel groups. Two blind strains. Phase 3 was randomized on 60 patients and balanced block was used for randomization.

It is an intervention study and a clinical trial type. The sample size is 60 people. Patients who need to have a chest tube implanted in the operating room of Shahid Beheshti Hospital, Qom, and after obtaining written consent, are divided into two groups by randomization using the block randomization method: the first group includes 30 patients who undergo intercostal block . The second group of 30 patients will undergo erector spinae block.

Admission requirements: age 18-50 years, ASA Class I-II Conditions of non-entry: emergency cases, ASA Class III and more, history of drug allergy, sensitivity to local anesthetic, psychotic disease, drug addiction, coagulation disorder, local skin infection, chronic use of painkillers and NSAID.

Intervention group (E) under Erector Spinae block: After obtaining consent for nerve block, eligible people will be blocked under aseptic conditions under ultrasound guidance by random sampling before chest intubation. They receive 15 cc of bupivacaine 0.5% at T5 level. Control group (I) under intercostal block: after obtaining consent for nerve block, eligible people are blocked under aseptic conditions under ultrasound guidance as random sampling before chest intubation. 15 cc of bupivacaine 0.5% is equally divided into three levels: T4, T5-T6.

Pain level

Participants will be assigned to intervention and control groups using block randomized method. The link "https://www.sealedenvelope.com/simple-randomiser/v1/lists" will be used for block randomization. For this purpose, the target number of samples (60 samples), number of groups (two groups A and B) and number of blocks (4) will be entered and the system will provide the researcher with a list of 4 blocks. Based on the output list, it will be determined in which group the patients who enter the study should be placed in order. Items A represent the intervention group and items B represent the control group.

Based on the block randomization method, patients will be divided into two control and intervention groups of 30 people. In a group of anesthesiologists who will not know the type of research, they will put the patients under one of the nerve block methods based on the sealed envelope in which the type of block is specified. The principal investigator will not know which patient is receiving which block. The patient and the person filling the questionnaire do not know the type of block.