The Impact of Thoracic Paravertebral Nerve Block At Different Positions on Pain Relief in Patients Undergoing Single-Port Thoracoscopic Partial Lung Resection

Soochow University

Status: Not yet enrolling

Conditions: Lung Cancer; Lung Nodules

Treatments: Behavioral: Supine position; Behavioral: lateral decubitus position

Study type: Interventional

Funder types: Other

Identifiers

NCT06789276

JD-LK2023067-I01

Details and patient eligibility

About

Thoracic surgery is widely recognized as one of the most painful surgical procedures. Compared to open thoracotomy, video-assisted thoracoscopic surgery (VATS) offers similar therapeutic outcomes with less invasiveness, significantly reducing postoperative pain and promoting recovery. Despite the use of video-assisted thoracoscopic surgery (VATS), a significant proportion of patients still experience considerable discomfort. Specifically, 78% of patients report moderate to severe pain, with 27% experiencing moderate pain, 34% severe pain, and 17% very severe pain.

Multiple studies have shown that the use of regional anesthesia, such as thoracic paravertebral nerve block (TPVB), in these surgeries can block the transmission of nociceptive signals via the intercostal nerves, producing good analgesic effects. This can reduce the consumption of postoperative opioids, decrease inflammatory responses, and improve patient survival rates after surgery.

By comparing the differences in hemodynamic parameters, inflammatory stress indicators, and intraoperative and postoperative analgesic effects of thoracic paravertebral nerve block in different preoperative positions for patients undergoing thoracoscopic surgery, we aim to identify the optimal nerve block position, thereby promoting patient recovery.

Enrollment: 200 estimated patients

Sex: All

Ages: 18 to 70 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age ≥ 18 and ≤ 70 years old

  • BMI ≥ 18 and ≤ 28

    • American Society of Anesthesiologists (ASA) physical status classification I-II ⑷ Patients scheduled for elective thoracoscopic lung resection (including lobectomy, segmentectomy, and wedge resection) ⑸ Patients who agree to participate in this study and sign the informed consent form

Exclusion criteria

• Patients who refuse to undergo nerve block

  • Patients with severe cardiac, pulmonary, hepatic, or renal insufficiency requiring postoperative admission to the ICU for continued treatment (EF < 40%, FEV1/FVC < 40%)

    • Abnormal coagulation function ⑷ History of allergy to anesthetic drugs

      • History of chronic alcohol use, chronic pain, or long-term use of psychotropic medications ⑹ Scars, infections, or tumors at the puncture site ⑺ History or family history of malignant hyperthermia ⑻ Refusal to participate in this study or inability to cooperate with follow-up or poor compliance

Termination criteria:

• Failure to comply with the predetermined study protocol ⑵ Occurrence of local anesthetic adverse reactions, puncture needle entering the pleural cavity, or other complications during puncture

  • Changes in the patient's condition ⑷ The patient's unwillingness to continue participating in the study

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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200 participants in 2 patient groups

supine group

Experimental group

Description:

This study selected patients scheduled for thoracoscopic lung resection at the Second Affiliated Hospital of Soochow University. The patients were divided into two groups using a random number table: the supine group and the lateral decubitus group. Patients who are placed in the supine position after the intervention are assigned to the supine group.

Treatment:

Behavioral: Supine position

lateral decubitus group

Experimental group

Description:

This study selected patients scheduled for thoracoscopic lung resection at the Second Affiliated Hospital of Soochow University. The patients were divided into two groups using a random number table: the supine group and the lateral decubitus group. Patients who are placed in the lateral decubitus position on the affected side after the intervention are assigned to the lateral decubitus group.

Treatment:

Behavioral: lateral decubitus position