Abdominal Ice Packs for Pain Control and Reduction of Narcotic Use Following Laparoscopic Hysterectomy

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the effect of using ice packs on the abdomen immediately after laparoscopic hysterectomy surgery on pain control and narcotic pain medication use.

Detailed Description
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Hysterectomy is one of the most common surgical procedures performed on women in the United States, with approximately 600,000 performed annually. The use of postoperative cooling as an adjuvant for post-operative pain control has previously been shown to be effective and safe in a variety of procedures, but has yet to be described for laparoscopic surgery. In contrast to laparotomy where the wound is a significant pain generator and direct application of ice is intuitive, in laparoscopic surgery much of the pain-generating tissue trauma is intraperitoneal and pelvic in nature, away from the abdominal wall. Ice pack use on the abdominal wall likely inhibits visceral afferent pain fibers via somatic afferent nerve cross-talk. Accordingly, applying ice to the abdominal wall and its somatic afferents may improve laparoscopic pain control, despite the lack of a significant abdominal wound. Our goal is to quantify narcotic use after hospital discharge following hysterectomy, and evaluate the effectiveness of abdominal ice packs as low cost adjuncts for pain control.

Official Title
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Abdominal Ice Packs for Pain Control and Reduction of Narcotic Use Following Laparoscopic Hysterectomy: A Randomized Controlled Trial

Conditions
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Pain, Postoperative, Hysterectomy, Narcotic Use, Cryotherapy Effect

Intervention / Treatment
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* Procedure: Ice packs plus usual post-op analgesia
* Other: Usual post-op analgesia


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Women undergoing robotic or conventional laparoscopic hysterectomy Exclusion Criteria: Any opioid use within 2 weeks of surgery date Planned post-operative ICU admission Conversion of laparoscopic approach to laparotomy or any incision ≥4 cm Regional anesthesia/analgesia, including tap block use

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Ice packs plus usual post-op analgesia<br>Ice pack applied to the abdomen and maintained continuously for the first 12 hours post-operatively. Standard standard post-operative analgesia orders will be followed in addition to use of ice. | Procedure: Ice packs plus usual post-op analgesia<br>* A 9 inch by 12 inch zip lock bag filled with ice chips, placed inside a cotton pillow case, placed directly on the abdomen. Ice chips will be replaced as they thaw. Monitoring of surgical sites, skin integrity, and comfort with ice pack in place by nursing per current procedural guidelines.<br>Other: Usual post-op analgesia<br>* Standard post-operative analgesia orders will be followed.<br>|
| Active Comparator: Usual post-op analgesia<br>Standard post-operative analgesia only, no ice use. | Other: Usual post-op analgesia<br>* Standard post-operative analgesia orders will be followed.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Numeric Pain Intensity Scale | Self-reported pain intensity scores (Numerical Pain Intensity Scale, 0-10 visual analog scale with 0 representing no pain and 10 representing the worst pain imaginable) assessed and documented a minimum every four hours post-operatively. Mean differences of pain intensity assessed between ice group and usual care group. | 12 hours post-operatively | 
| Mean Morphine Metabolic Equivalents (MME) Consumption: Inpatient Floor | Calculation of average patient MME from the time enter hospital floor to hospital discharge. Administered narcotics will be abstracted from the medical record and converted to total MME for analysis. | an average of one day from entering hospital floor to discharge | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mean Morphine Metabolic Equivalents (MME) Consumption: Outpatient | Calculation of average patient MME from the time of hospital discharge to end of narcotic use for post-operative pain control. Patients will keep detailed home diary of narcotic analgesia use after discharge. Total narcotic intake recorded on the diary will be converted to MME for analysis. | 2 weeks | 
| Brief Pain Inventory Short Form - Postoperative Pain Severity | Brief Pain Inventory Short Form scores (Pain diagram to indicate location of pain and 7 Likert-scale questions assessing pain severity and interference with feeling and function, scores ranging from 0 = No pain to 10 = pain as bad as you can imagine) assessed pre-op and again post-operatively, just before hospital discharge (at last 12 but no more than 24 hours after surgery). Mean differences calculated between ice group and usual care group. | one day after surgery | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Analgesia, Laparoscopy, Pain