Pain Management in ED for Incision and Drainage of Abscess

Abscess Clinical Trial

Official title: Randomized Controlled Trial of the Use of Intramuscular Fentanyl for the Incision and Drainage of Abscess in the Emergency Department

Status Withdrawn

Clinical Trial Summary

Patients presenting with painful procedures in the Emergency Department (ED) have been shown to frequently have inadequate pain management. The incision and drainage (I&D) of an abscess is a common procedure that is viewed by many emergency physicians as only requiring a localized anesthetic for pain management. However, it has been documented in previous research that there can be disconnect between what emergency medicine physicians interpret as painful and what patients experience as pain. A trial will be conducted to focus on use of intramuscular (IM) Fentanyl as an intervention to help alleviate pain associated with the incision and drainage of an abscess. This is a procedure that rarely receives systemic opioids.

This double blinded protocol will randomize a total of 50 patients patients with abscesses to receive either a combination of Fentanyl IM followed by subcutaneous (SC) local bupivicaine analgesia or Normal Saline IM followed by SC local bupivicaine analgesia. Only opiate naive patients will be enrolled. The primary outcomes studied are patients overall satisfaction with procedure, and patients level of pain associated with the procedure.

Clinical Trial Description

Patients presenting with painful procedures in the Emergency Department (ED) have been shown to frequently have inadequate pain management. The incision and drainage of an abscess is a common procedure that is usually treated by emergency physicians with only localized anesthetic for pain management. For those abscesses that require incision and drainage, a physician will usually inject a local anesthetic to help decrease sensation to the affected area prior to incision and drainage. Occasionally, physicians will administer a systemic pain medication, in addition to the localized anesthetic, as a method to better help alleviate pain associated with more complex procedures.

Wilson and Pendleton (1989) wrote a landmark study that highlighted the problem of physicians undertreating patients pain in the ED, a problem known as oligoanalgesia. They found that only 50% of patients with moderate to severe pain were receiving narcotics. Since then the literature has highlighted a number of additional deficits in the use of pain medication in the ED to include the amount of time it takes patients to receive medication, the lack of education medical personnel receive in pain management, the bias that physicians have toward using pain medication, and the lack of pain medication given for painful procedures. Five areas of inadequate management of painful conditions in the ED include 1) failure to acknowledge pain, 2) failure to assess initial pain, 3) failure to have pain management guidelines, 4) failure to document pain and assess treatment adequacy, and 5) failure to meet patients expectations. The use of adequate pain medication for painful procedures covers has been a recent attempt to fill in the gap of one area contributing to oligoanalgesia.

Incision and drainage procedures are a common condition that emergency physicians manage yet there is no evidence to suggest whether they are appropriately managing the pain associated with their treatment. We propose a trial to determine whether intramuscular (IM) Fentanyl, given prior to the incision and drainage of the abscess, decreases the level of pain during/after the procedure and increases the patients overall satisfaction with the procedure.

This double blind protocol will randomize 50 patients with abscesses to receive either a combination of an intramuscular injection of Fentanyl followed by subcutaneous (SC) local bupivacaine analgesia (Fentanyl Group), or a combination of an intramuscular injection of normal saline (Control Group) IM followed by SC local bupivacaine analgesia. Patients will receive a questioner administered by a research assistant after the procedure to assess outcomes of study.

Neither treating physicians, nurses nor patients and research assistants will be aware to which group the patient has been randomized. Fentanyl was chosen due to the rapidity of onset (7-8 minutes) and clearance (1-2 hours). The choice of abscess was made given the ease at which to make a diagnosis, standard treatment with incision and drainage and known association with pain during and after the procedure.

After appropriate identification, screening, and consenting, the patient will then be randomized to receive intramuscular Fentanyl (1 ug/kg) OR Normal Saline (1.5 ml) 7-8 minutes before the procedure is began. Patients in either group will still receive usual care with local subcutaneous bupivacaine anesthetics. Patients are at liberty to request more local subcutaneous bupivacaine and or more pain systemic pain medication and the treating provider may deliver more at their discretion. Contamination may occur if patients receiving IM Normal Saline request systemic narcotics for pain levels not controlled with local bupivacaine alone. These patients may receive systemic narcotics again at the discretion of treating providers. However all patients will remain in the initial group to which they were assigned and data will be evaluated on an intention to treat analysis basis. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Abscess

• NCT number: NCT01881997
• Study type: Interventional
• Source: University of California, Los Angeles
• Status: Withdrawn
• Phase: Phase 4
• Start date: June 2011
• Completion date: December 2011