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Obesity has become one of the world's leading health problems. It is known that obesity causes many diseases and negatively affects the quality of life. For this reason, many conditions that are thought to be effective in obesity and concern the quality of life of patients have been scientifically researched and continue to be investigated. One of them is postoperative pain. Although there are studies stating that there is no relationship between body mass index (BMI) and postoperative pain, when the literature data is examined, it is thought that obesity is a risk factor for postoperative pain and changes pain sensitivity and analgesic needs of patients. There are also studies in the literature stating that the level of postoperative pain increases in parallel with each unit increase in BMI.
After thoracic surgery, many analgesic methods have been suggested, including thoracic epidural analgesia (TEA), thoracic paravertebral block (TPVB), intercostal nerve blocks (ICSB), erector spina plane block (ESPB), serratus anterior plane block (SAPB). This study will compare the effects of BMI on postoperative pain in patients undergoing TPVB for postoperative analgesia and thoracoscopic surgery.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Patients with a BMI of 18-24.9 kg/m2 | Active Comparator | The needle will be advanced to the paravertebral area with an ultrasound-guided in-plane technique. 30 ml of 0.25% bupivacaine will be injected into this area. |
|
| Patients with a BMI of 25-29.9 kg/m2 | Active Comparator | The needle will be advanced to the paravertebral area with an ultrasound-guided in-plane technique. 30 ml of 0.25% bupivacaine will be injected into this area. |
|
| Patients with a BMI of 30-40 kg/m2 | Active Comparator | The needle will be advanced to the paravertebral area with an ultrasound-guided in-plane technique. 30 ml of 0.25% bupivacaine will be injected into this area. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Thoracic Paravertebral Block | Procedure | Thoracic paravertebral block will be applied to the patients under real-time ultrasound guidance. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Pain Scores | Pain will be assessed at the first-hour rest and while coughing using the visual analog scale on a scale from 0 (no pain) to 10 (worst pain). Pain assessment will be done at the 1st, 2nd, 4th, 12th, 24th, and 48th hours after surgery. | 1st hour after surgery. |
| Pain Scores | Pain will be assessed at the 2nd-hour rest and while coughing using the visual analog scale on a scale from 0 (no pain) to 10 (worst pain). | 2nd-hour after surgery. |
| Pain Scores | Pain will be assessed at the 4th-hour rest and while coughing using the visual analog scale on a scale from 0 (no pain) to 10 (worst pain). | 4th-hour after surgery. |
| Pain Scores | Pain will be assessed at the 12th-hour rest and while coughing using the visual analog scale on a scale from 0 (no pain) to 10 (worst pain). | 12th-hour after surgery. |
| Pain Scores | Pain will be assessed at the 24th-hour rest and while coughing using the visual analog scale on a scale from 0 (no pain) to 10 (worst pain). | 24th-hour after surgery. |
| Pain Scores | Pain will be assessed at the 48th-hour rest and while coughing using the visual analog scale on a scale from 0 (no pain) to 10 (worst pain). | 48th-hour after surgery. |
| Measure | Description | Time Frame |
|---|---|---|
| Morphine Consumption | Morphine consumption for 24 hours will be recorded | 24 hours after surgery |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Nilgün Zengin, MD | Ankara City Hospital Bilkent | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ankara City Hospital | Çankaya | Ankara | 06290 | Turkey (Türkiye) | ||
| Ankara Atatürk Chest Diseases and Thoracic Surgery Training and Research Hospital |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 37667207 | Derived | Zengin EN, Alagoz A, Yigit H, Sazak H, Sekerci S, Zengin M. The effect of body mass index on thoracic paravertebral block analgesia after video-assisted thoracoscopic surgery; a prospective interventional study. BMC Anesthesiol. 2023 Sep 4;23(1):297. doi: 10.1186/s12871-023-02264-0. |
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| ID | Term |
|---|---|
| D010149 | Pain, Postoperative |
| D059787 | Acute Pain |
| ID | Term |
|---|---|
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D010146 | Pain |
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| Keçiören |
| Ankara |
| 06290 |
| Turkey (Türkiye) |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |