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The aim of this study is to compare conventional and ultrasound guided paravertebral blocks to with respect to efficacy, patient satisfaction and complication rates.
Adequate pain control is important in breast cancer surgery. In addition to benefits to patients, effective pain management strategies also facilitate day case surgery. Regional anaesthetic techniques, and paravertebral blocks in particular, are valuable in this sphere. The conventional method of administering this block is blind and depends on anatomical landmarks for placement. Performing the block under US guidance provides real time imaging while advancing the needle. This might allow for a more accurate placement and hence a more effective block which would enhance pain relief and minimise complications.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Standard Paravertebral Block | Active Comparator | Patients receiving a conventional paravertebral block of dilute local anaesthetic (eg. 5ml of 0.5% bupivacaine or similar) administered using anatomical landmarks |
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| Ultrasound Guided Paravertebral Block | Active Comparator | Patients receiving paravertebral block of dilute local anaesthetic (eg. 5ml of 0.5% bupivacaine or similar) administered under ultrasound guidance |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ultrasound guided paravertebral block | Procedure | Paravertebral blocks is a regional anaesthetic technique in which thoracic spinal nerves are inhibited for post operative analgesia in patients undergoing breast surgery. The site of injection can be determined using anatomical landmarks (standard) or using ultrasound guidance. |
| Measure | Description | Time Frame |
|---|---|---|
| Analgesia requirements in 24 hours post op. | Non opiate and opiate analgesia (morphine equivalent) intake at 24hours post op | 24hours |
| Measure | Description | Time Frame |
|---|---|---|
| Pain Scores | Measured on Visual Analogue Scale or Verbal Numerical Rating Scale at 1, 2 and 24 hours post operatively and 1 week | 1, 2 and 24 hours post operatively and 1 week post operatively |
| Patient satisfaction |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Deirdre Nally, MCh | Contact | deirdrenally@rcsi.ie |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University Hospital Galway | Recruiting | Galway | Co. Galway | Ireland |
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| Up to 2 weeks post operatively |
| Complications | Any complication of the procedure experienced | Up to 2 weeks post operatively |