Anal Fissure, Anal Fistula, Hemorrhoids, Pain, Postoperative
Conditions
Keywords
ultrasound guided caudal block, anal surgery
Brief summary
Interventional study that evaluate analgesia and side effects of Ultrasound guided Caudal block preoperatively in benign canal anal surgery
Detailed description
Postoperative pain is an important symptom in patients after benign anal canal surgery. Caudal block has been described to decrease postoperative pain in this type of surgery. Ultrasound is a tool that facilitates its performance and increases the rate of a successful block. Objective: To determine the usefulness of ultrasound guided caudal block in anesthesia and postoperative analgesia in patients scheduled for benign anal surgery. Methods : Interventional study in adult patients that received ultrasound caudal anesthetic block before benign anal surgery. The investigators evaluated analgesic efficacy of this intervention by mean of numeric rating scale ( NRS) for pain after 6, 12 and 24 hours of surgery, rescue analgesia, motor block, urinary retention, surgical conditions and patient satisfaction in postoperative period.
Interventions
PROCEDUREUltrasound Guided Caudal Block
Using an external ultrasound probe, the investigators guided a 18 gauge epidural needle into the caudal space and injected a local anesthetic solution consisting in bupivacaine 0.25%, lidocaine 1% and dexamethasone 8mg in the caudal space.
Sponsors
Universidad de Antioquia
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
interventional
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
* age from 18 to 70 year old patient * schedule for benign anal surgery ( hemorrhoids, anal fistula, fissure or abcess ) * Caudal analgesic injection before surgery * Use of ultrasound to guide needle insertion into caudal space
Exclusion criteria
* cognitive impairment * verbal communication impairment * infection in skin at injection site * coagulopathy * technique refusal
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| postoperative pain intensity (P3). Self reported pain intensity at 6, 12 and 24 hours after surgery. | 1 day | The pain numeric Rating Scale (NRS) is a single 11-point numeric scale in which a respondent selects a whole number (0-10 integers) that best reflects the intensity of their pain , with 0 representing one pain extreme (e.g., no pain) and 10 representing the other pain extreme (e.g., pain as bad as you can imagine and worst pain imaginable) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Rescue Analgesia (R3) need of opioid medication for rescue severe postoperative pain at 6, 12 and 24 hours after surgery. | 1 day | Doses of intravenous tramadol for rescue in severe postoperative pain |
Other
| Measure | Time frame | Description |
|---|---|---|
| motor block | 2 hours post surgical | presence or absence of motor block in lower extremity after caudal block |
Countries
Colombia
Outcome results
None listed