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The purpose if this pilot study is to determine if a perioperative infusion of 0.2% ropivacaine via bilateral T3 paravertebral catheters can decrease the incidence of new onset atrial fibrillation following primary CABG and/or valve surgery and compare a number of secondary outcomes.
Patients in the intervention group will have ultrasound guided bilateral T3 paravertebral catheters placed prior to surgery. Prior to surgery, these patients will have 5ml of 1.5% lidocaine with 1:200,000 epinephrine injected in each catheter. Ropivacaine 0.2% will be administered via programmed intermittent bolus of 7ml every 60 minutes through each catheter during and after surgery. Patients in the control group will receive no block and undergo surgery with routine anesthetic care guided by their cardiac anesthesiologist.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Experimental | Experimental | Participants in this group will receive the intervention. |
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| Control | No Intervention | Participants in this group will receive no intervention. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ropivacaine 0.2% Injectable Solution | Drug | Patients in the intervention group will have ultrasound guided bilateral T3 paravertebral catheters placed prior to surgery. Prior to surgery, these patients will have 5ml of 1.5% lidocaine with 1:200,000 epinephrine injected in each catheter. Ropivacaine 0.2% will be administered via programmed intermittent bolus of 7ml every 60 minutes through each catheter during and after surgery. |
| Measure | Description | Time Frame |
|---|---|---|
| Incidence of New-Onset Atrial Fibrillation (NOAF) | The primary outcome for this trial is the incidence of new-onset atrial fibrillation (NOAF) in the first 5 days following cardiac surgery, defined as atrial fibrillation and/or flutter as recorded on a 12-lead ECG or rhythm strip for greater than 30 seconds in patients with no prior history of atrial fibrillation and/or flutter. Outcome is reported as the percent of participants with NOAF in each arm. | 5 days |
| Measure | Description | Time Frame |
|---|---|---|
| Cumulative Opioid Use - Average Dosages | Outcome reported as the average opioid dosage at 24, 48, 72, 96, and 120 hours post-operatively. | 24, 48, 72, 96, and 120 hours post-operatively |
| Cumulative Opioid Use - Morphine Equivalents |
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Inclusion Criteria:
- Participants must be undergoing one of the following elective or urgent (but not emergent) surgeries: A) Primary Coronary Artery Bypass Graft (CABG) B) Primary Surgical Aortic Valve Replacement (sAVR) C) Primary Surgical Mitral Valve Replacement (sMVR) D) Combined CABG & surgical valve replacement
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| James Flaherty, MD | University of Minnesota | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Minnesota | Minneapolis | Minnesota | 55455 | United States |
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| ID | Term |
|---|---|
| D006331 | Heart Diseases |
| ID | Term |
|---|---|
| D002318 | Cardiovascular Diseases |
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| ID | Term |
|---|---|
| D000077212 | Ropivacaine |
| ID | Term |
|---|---|
| D000813 | Anilides |
| D000577 | Amides |
| D009930 | Organic Chemicals |
| D000814 | Aniline Compounds |
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Outcome reported as the cumulative opioid use in morphine milligram equivalents at 24, 48, 72, 96, and 120 hours post-operatively.
| 24, 48, 72, 96, and 120 hours post-operatively |
| Time to Extubation | Outcome reported as the amount of time (in hours) participants remain intubated post-operatively. | approximately 5 days |
| Intensive Care Unit (ICU) Length of Stay | Outcome reported as the length of time (in days) that participants are admitted to the intensive care unit (ICU) post-operatively. | approximately 5 days |
| Hospital Length of Stay | Outcome reported as the length of time (in days) that participants remain admitted to the hospital post-operatively. | approximately 7 days |
| 30-Day Mortality | Outcome reported as the percent of participants in each arm who expire in the 30 days following surgery. | 30 days |
| Cumulative ICU sedation doses | Outcome reported as the cumulative doses of sedatives (Midazolam, Fentanyl, Propofol, Dexmedetomidine, Haloperidol, Olanzapine) at 24 hours and 72 hours post-operatively. | 24 and 72 hours post-operatively |
| Diagnosis of delirium during index hospitalization | Outcome reported as the percent of participants in each arm who are diagnosed with delirium during hospital admission. | approximately 7 days |
| Quality of Recovery 15 (QOR-15) Scores | The Quality of Recovery 15 is a 15-item survey evaluating recovery after surgery and anaesthesia. Items are rated on a scale 0-10. Total scores are a sum of item scores and range 0-150, with higher scores representing a higher quality of recovery. | 24, 48, 72, 96, and 120 hours post-operatively |
| Average pain score | Participants will be asked to rate their pain on a scale from 0 (no pain) to 10 (maximum pain imaginable). | 24, 48, 72, 96, and 120 hours post-operatively |
| Block-associated complications | Outcome reported as the number of block-associated complications including catheter infection, vascular puncture, bleeding that results in neurologic compromise, pneumothorax. | approximately 5 days |
| Block performance time | Outcome reported as the length of time (in minutes) for placement of catheters. | approximately 1 hour |
| Duration of vasopressor requirement | Outcome reported as the length of time (in hours) that participants require vasopressor therapy. | approximately 24 hours |
| D000588 |
| Amines |