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The purpose of this research study is to identify the benefits of a type of nerve block, called an erector spinae plane block (ESP), in the treatment of patients with multiple rib fractures and uncontrolled pain despite receiving current institutional standards of care.
Rib fractures are one of the most common injuries secondary to blunt chest trauma, and carry significant risk in terms of patient morbidity and mortality. Pulmonary complications resulting from these injuries include severe atelectasis with hypoxemia, pneumonia, pleural effusions, respiratory distress syndrome, need for mechanical ventilation and ICU admission, and prolonged hospital stay. Many institutions have tried to develop protocols to risk stratify and appropriately treat these patients, with the goal of predicting those with higher likelihood of pulmonary complications in order to minimize additional morbidity. Studies have demonstrated critical spirometry values which correlate to worse patient outcomes; specifically, vital capacity less than 50% predicted, or less than 2L. Subsequently, there have been numerous attempts to identify the best treatment interventions for these high risk patients. In addition to multi-modal pain management, the most commonly used procedures include thoracic epidurals, continuous or single shot paravertebral blocks, and intercostal blocks. However, all of the above interventions carry significant risk, and the frequent use lovenox thromboprophylaxis drastically limit their use. Recently, a novel peripheral nerve block technique has been developed, an erector spinae plane block (ESP), which may provide similar or greater efficacy to the above, with significantly less risk to the patient.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| ESP block with normal saline | Sham Comparator | An erector spinae plane block will be performed and a single dose of Normal Saline Flush, 0.9% Injectable Solution will be administered into the target muscle plane. |
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| ESP block with local anesthetic | Experimental | An erector spinae plane block will be performed and a single dose of 0.5% ropivacaine will be injected into the target muscle plane. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ropivacaine | Drug | Ropivacaine is a local anesthetic that is expected to provide numbness to the chest wall when injected into the erector spinae plane. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Change in numeric pain score rating at rest (before incentive spirometry exercise) | Self-reported pain intensity before the ESP block is performed and after the ESP block is performed. These measurements will be assessed before the incentive spirometry exercise. Each item is scored 0-10 (0 = no pain; 10= worst pain possible) | Baseline and at 45 minutes after ESP block |
| Change in numeric pain score rating with respiration (after incentive spirometry exercise) | Self-reported pain intensity before the ESP block is performed and after the ESP block is performed. These measurements will be assessed after the incentive spirometry exercise. Each item is scored 0-10 (0 = no pain; 10 = worst pain possible) | Baseline and at 45 minutes after ESP block |
| Change in incentive spirometry values | Incentive spirometry values, measured in cubic centimeters, when the participant provides one inhalational breath at maximum effort. The first measurement will be taken before the ESP block procedure and the second measurement 45 minutes after the ESP block procedure. | Baseline and at 45 minutes after ESP block |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Bryant Tran, MD | Virginia Commonwealth University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Virginia Commonwealth University | Richmond | Virginia | 23298 | United States |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | Jan 11, 2019 | Jan 11, 2019 | Prot_SAP_000.pdf |
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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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| ID | Term |
|---|---|
| D000077212 | Ropivacaine |
| D000779 | Anesthetics, Local |
| D012965 | Sodium Chloride |
| ID | Term |
|---|---|
| D000813 | Anilides |
| D000577 | Amides |
| D009930 | Organic Chemicals |
| D000814 | Aniline Compounds |
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The study aims to assess the systemic absorption of ropivacaine when it is administered into the erector spinae plane compartment.
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|
| Normal Saline Flush, 0.9% Injectable Solution | Drug | Normal Saline Flush, 0.9% Injectable Solution is not expected to provide numbness to the chest wall when injected into the erector spinae plane. |
|
|
| D000588 |
| Amines |
| D000777 | Anesthetics |
| D002492 | Central Nervous System Depressants |
| D045505 | Physiological Effects of Drugs |
| D020228 | Pharmacologic Actions |
| D020164 | Chemical Actions and Uses |
| D018689 | Sensory System Agents |
| D018373 | Peripheral Nervous System Agents |
| D002491 | Central Nervous System Agents |
| D045506 | Therapeutic Uses |
| D002712 | Chlorides |
| D006851 | Hydrochloric Acid |
| D017606 | Chlorine Compounds |
| D007287 | Inorganic Chemicals |
| D017670 | Sodium Compounds |