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This study is to investigate whether a different volume of ropivacaine, with the same prescribed dosage based on body weight, can affect block efficacy, duration and side effects in the first 24 hours postoperatively.
patients were divided into 3 groups on the basis of the volume of anesthetic given to perform the block. in every patient was assessed the nrs, the side effects, if any, and the need for analgesic drugs in the first 24 hour after surgery
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 15 ml local anesthetic | in this group of patients the peng block was performed with 15 ml of ropivacaine, whose dose was obtained on the weight |
| |
| 20 ml local anesthetic | in this group of patients the peng block was performed with 20 ml of ropivacaine, whose dose was obtained on the weight |
| |
| 30 ml local anesthetic | in this group of patients the peng block was performed with 30 ml of ropivacaine, whose dose was obtained on the weight |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ropivacaine | Drug | The local anesthetic was dosed on the patient's weight (50-59kg: 120mg, 60-61kg: 140mg, 70-79kg: 160mg, ≥80kg: 180mg) |
|
| Measure | Description | Time Frame |
|---|---|---|
| NRS evaluation | Evaluate pain for every volume group in the first 24 hours post surgery using the Numeric Pain Scale (NRS) assigning a numeric value between zero (no pain) and ten (the worst pain ever felt). Absence of relevant pain is considered a NRS less than three. Success of the block was defined as NRS≤3. | 24h post-op |
| Measure | Description | Time Frame |
|---|---|---|
| NRS variation in time | consider variation of pain, assessed with numeric Pain scale, for each group, every six hours | 24 h |
| Measure | Description | Time Frame |
|---|---|---|
| presence of side effects | Monitoring the onset of side effects (nausea/vomiting/hypotension/dizziness/sensitive impareiment) in every group of patients in the first 24 hours every six hours | 24 hours |
| analgesic requirements |
Inclusion Criteria:
Exclusion Criteria:
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Patients underwent total hip replacement in elective surgery
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| Name | Affiliation | Role |
|---|---|---|
| manuela nicastro, MD | aoupisa | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Edificio 3 - Azienda Ospedaliero Universitaria Pisana Cisanello | Pisa | Tuscany | 56124 | Italy |
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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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requirement of analgesic to control the pain, assessed every six hours
| 24 hours |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D000588 |
| Amines |