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Prospective, patient-blinded study utilizing a novel Continuous Reassessment Method that concomitantly considers both block success and block side effects (lung dysfunction) for brachial plexus nerve blocks.
Success or failure of the brachial plexus block for any given volume will be determined by the verbal analogue pain scale score obtained 60 minutes after surgical end time. Volumes will be determined by continuous reassessment method.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Brachial Plexus Block Group 1 | Experimental | Interscalene |
|
| Brachial Plexus Group 2 | Experimental | Supraclavicular |
|
| Brachial Plexus Group 3 | Experimental | Suprascapular |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Dose of 0.5% Ropivacaine | Drug | Dose varied by 5mL of 0.5% Ropivacaine |
|
| Measure | Description | Time Frame |
|---|---|---|
| Block Success | Block success measured by pain (11-point VAS) | 60min after surgery |
| Lung Function | Block success as measured by preservation of lung function (Vital Capacity in L) | 60 mins after surgery |
| Block Success | Block Success measured by opioid (mcg of fentanyl delivered) | 60 mins after surgery |
| Measure | Description | Time Frame |
|---|---|---|
| Diaphragm Excursion | Change in Movement of Diaphragm in cm | 60 minutes after surgery |
| Vital Capacity | Change in Vital Capacity measured in L |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| David Auyong | Contact | 206-223-6980 | anedba@vmmc.org |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Virginia Mason Medical Center | Recruiting | Seattle | Washington | 98101 | United States |
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| ID | Term |
|---|---|
| D010149 | Pain, Postoperative |
| ID | Term |
|---|---|
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D010146 | Pain |
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| ID | Term |
|---|---|
| D000077212 | Ropivacaine |
| ID | Term |
|---|---|
| D000813 | Anilides |
| D000577 | Amides |
| D009930 | Organic Chemicals |
| D000814 | Aniline Compounds |
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| 60 minutes after surgery |
| Pulse Oximetry | Change in Pulse Oximetry Value | 60 minutes after surgery |
| Side Effects | Rate of Dyspnea, Horner's, Hoarseness | 60 minutes after surgery |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D000588 |
| Amines |