Efficacy of EMLA Cream Assisted Loco-sedation for Office-based Andrology Procedures

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    72
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    University of Manitoba
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Updated on 6 February 2024
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Summary

Scrotal, urologic surgery has traditionally been conducted in the hospital setting, typically with the use of sedation, spinal anesthesia or general anesthesia. There has been a recent push to move certain scrotal urologic surgeries out of the hospital operating room into a ambulatory, outpatient basis with recent literature demonstrating this in many centers. The use of local anesthesia alone poses numerous benefits. The investigators wish to compare patients who are undergoing invasive scrotal surgery under local anesthetic to those who additionally have a topical anesthetic cream (EMLA) applied to the scrotum to determine if this further increases patient tolerability of these procedures.

Description

The current standard of care for patients undergoing the majority of urologic procedures is to administer general or spinal anesthesia. The use of general or spinal anesthesia can lead to several complications, long wait times, higher costs associated with the operating. While office-based surgical procedures under local anesthesia can have additional benefits aside from avoiding adverse effects of spinal or general anesthesia, such as ability to communicate, improved convenience, and absence of extended post-op recovery. In one particular study, patients who were surveyed were overwhelmingly satisfied with office-based procedures, and often perceived office-based procedures as less invasive and safer. Urologic care has much to gain from expanding the use of procedures performed under local anesthetic in an ambulatory setting to address the above problems.

Although local anesthetic can be quite effective, needle phobia and negative experiences associated with it can be a common experience. In addition to the fear associated with injection, the traditional local anesthetic injection can also be associated with pain and trauma to the infiltrated site. EMLA (Eutectic Mixture of Local Anesthetic) is a topic anesthetic cream that has in various office based urology procedures. Its use and potential benefits has been seen in a few studies for use in no-scalpel vasectomy, circumcision, metatomy, and more. However its use in more involved/invasive andrology and male-infertility procedures such as hydrocelectomy, penile plications, and others remain poorly studied thus far. Anecdotally, use of EMLA cream as an adjunct to our local anesthetic protocol demonstrated good efficacy in pain control and patient tolerability.

As such, the investigators wish to perform a prospective randomized controlled study at the Manitoba Men's Health Clinic to assess whether or not the use of EMLA cream and local anesthetic nerve block is associated with improved pain tolerance than local anesthetic alone. If our hypothesis provides true, further implementation of EMLA cream in office based andrology and male-infertility procedures may provide better pain control and overall experience for patients.

Details
Condition Scrotum Disease, Hydrocele Male, Spermatocele, Scrotal Hematocele, Local Anesthesia
Age 18years - 65years
Treatment Eutectic mixture of local anesthetics (EMLA; Astra Pharmaceutical Products Inc., Westborough, MA), Control cream
Clinical Study IdentifierNCT06242977
SponsorUniversity of Manitoba
Last Modified on6 February 2024

Eligibility

 Yes No Not Sure

Inclusion Criteria

Adult patients undergoing hydrocelectomy, spermatocelectomy, epididymectomy, testicular biopsy, scrotal lesion or cyst excision under local anesthesia alone were included

Exclusion Criteria

Patients were excluded if their procedure was to be performed with sedatives (e.g., inhaled nitrous oxide gas, oral, or IV sedation) or did not provide consent to be randomized
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