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This study will be a 3-arm, parallel-group, randomized controlled trial comparing three analgesic techniques for rib fractures with a sample size of 24 patients (8 per group). Patients will be randomly assigned to one of the following three groups: 1) ESP block with catheter using ropivacaine (bolus followed by continuous infusion); 2) lidocaine bolus (1 mg/kg) and infusion starting at 1 mg/kg/h; or 3) standard care with multimodal analgesia and opioids.
Our specific aims are:
Inclusion Criteria:
• Adult patients ≥ 55 years old who have sustained 3 or more unilateral rib fractures and are admitted to the hospital.
Exclusion Criteria:
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| ESP block with catheter using ropivacaine (bolus followed by continuous infusion) | Experimental |
| |
| Lidocaine bolus (1 mg/kg) and infusion starting at 1 mg/kg/h | Active Comparator |
| |
| Standard care with multimodal analgesia and opioids | No Intervention |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ESP block with catheter using ropivacaine (bolus followed by continuous infusion) | Procedure | A total of ropivacaine 75mg will be injected into the plane via the needle, followed by placement of a catheter 3-5 cm into the plane. A continuous infusion of ropivacaine 0.2% will be started at 8 mL/h and may be titrated up to a maximum of 10mL/h. Bolus doses of 5 mL using ropivacaine 0.2% will be permitted for breakthrough pain (pain score ≥ 7/10) and may be administered no more frequently than every 6 hours. Patients will be assessed for LAST twice daily by asking about tinnitus, perioral numbness, or metallic taste. Any patient who responds positively to these symptoms will have infusion stopped for 2 h and then restarted at a rate 2 mL/h lower. If the symptoms occur again, the catheter infusion will be stopped and the catheter removed. After the 72-hour study period the ESP catheter may remain in place if the patient has ongoing analgesia needs or if analgesia is controlled with oral medication the catheter may be removed at request of the treating team. |
| Measure | Description | Time Frame |
|---|---|---|
| Opioid Use in oral morphine equivalents (OME) | This will include both IV and oral opioids. Opioids given via PCA will also be prospectively recorded and included. | 72 Hours |
| Brief Pain Inventory - current pain subscale (0-10) | The Brief Pain Inventory (short form) - average of all "current pain" ratings). | 0-72 Hours |
| Measure | Description | Time Frame |
|---|---|---|
| Daily opioid use | The total daily opioid use will be recorded and converted to OMEs. The PDMP will be used to confirm if needed. | 30 Days |
| Daily opioid Use | The total daily opioid use will be recorded and converted to OMEs. The PDMP will be used to confirm if needed. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Eric Schwenk, MD | Thomas Jefferson University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Thomas Jefferson University Hospital | Philadelphia | Pennsylvania | 19107 | United States |
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| ID | Term |
|---|---|
| D012253 | Rib Fractures |
| ID | Term |
|---|---|
| D050723 | Fractures, Bone |
| D014947 | Wounds and Injuries |
| D013898 | Thoracic Injuries |
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3-arm, parallel-group, randomized controlled trial
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Participants, care providers, and investigators will not be blinded but outcome assessors will be unaware of group assignment when doing baseline assessments and when performing some post-randomization assessments, such as those at 30 and 90 days by phone call.
|
| Lidocaine bolus (1 mg/kg) and infusion starting at 1 mg/kg/h | Drug | A bolus of 1 mg/kg based on ideal body weight will be given over 10 minutes with a physician present and infusions will be started at 1 mg/kg/h based on IBW. Infusions will run continuously for the first 72 h and can be continued beyond that at the discretion of the treating team if pain persists. Patients will be assessed for LAST twice daily. Any patient with suspected LAST will have lidocaine infusion stopped and a lidocaine plasma level will be sent. If symptoms resolve, the lidocaine infusion can be restarted at a rate 25% lower. If pain is refractory to the lidocaine infusion and multimodal adjuncts, the infusion may be increased to a maximum of 1.5 mg/kg/h (during first 24 h only). The actual duration of the infusion as well as total lidocaine dose given in mg will be recorded. Stopping criteria for lidocaine will include the occurrence of new EKG changes for which an alternative explanation is not more likely as well as LAST symptoms. |
|
| 90 Days |
| Brief Pain Inventory | Average pain (0-10) - this is the average of the "average pain" scores | Days 1-3 |
| Brief Pain Inventory | Average pain (0-10) | Day 30 |
| Brief Pain Inventory | Average pain (0-10) | Day 90 |
| Vital capacity (mL) | Volume of air expired after a maximal inspiration in mL measured with spirometer | Baseline prior to intervention |
| Vital capacity (mL) | Volume of air expired after a maximal inspiration in mL measured with spirometer | Day 1 |
| Vital capacity (mL) | Volume of air expired after a maximal inspiration in mL measured with spirometer | Day 2 |
| Vital capacity (mL) | Volume of air expired after a maximal inspiration in mL measured with spirometer | Day 3 |
| Duke Activity Status Index | Functional status assessment (0-60 with 60 representing the best function) | Baseline prior to intervention |
| Short-form 12 | Functional status assessment (0-100 with 100 representing best function) | Baseline prior to intervention |
| Short-form 12 | Functional status assessment (0-100 with 100 representing best function) | Day 30 |
| Short-form 12 | Functional status assessment (0-100 with 100 representing best function) | Day 90 |
| 3D-CAM/CAM-ICU | Delirium assessment (yes or no) | Day 1 |
| 3D-CAM/CAM-ICU | Delirium assessment (yes or no) | Day 2 |
| 3D-CAM/CAM-ICU | Delirium assessment (yes or no) | Day 3 |
| Respiratory depression | Naloxone use | Days 1-3 |
| Epidural eligibility | Clinical judgment of physician | Day 1 |
| RibScore | Score includes: >= 6 ribs fractured, flail chest, bilateral fractures, first rib fracture, >= 3 displaced fractures, fracture in each anatomical area | Day 1 |
| Presence of perioral numbness | Patient self report | Day 1 |
| Presence of perioral numbness | Patient self report | Day 2 |
| Presence of perioral numbness | Patient self report | Day 3 |
| Presence of tinnitus | Patient self report | Day 1 |
| Presence of tinnitus | Patient self report | Day 2 |
| Presence of tinnitus | Patient self report | Day 3 |
| Presence of metallic taste | Patient self report | Day 1 |
| Presence of metallic taste | Patient self report | Day 2 |
| Presence of metallic taste | Patient self report | Day 3 |