Clinical trial NCT02084706: Needle-Free Injection of Lidocaine for Local Anesthesia Prior to Trigger Digit Injection
Official title: Needle-Free Injection of Lidocaine for Local Anesthesia Prior to Trigger Digit Injection
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Trigger Finger
Lead sponsor: Brigham and Women's Hospital
Sponsor class: OTHER
First posted: 2014-03-12
Enrollment: 60
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL

Brief summary: Jet-injection (J-tip) is a rapid, minimally invasive delivery system that can be used for the subdermal injection of lidocaine solution for anesthetic purposes. The device has been found effective in pain reduction during IV catheterization in adults and children and lumbar puncture in children when compared to placebo saline-jet injection. \[1-4\].

We believe that administering local anesthetic via J-tip prior to triamcinolone(40 mg/ml) injection could mitigate pain that occurs during and immediately following injection while preserving the post-injection pain relief of anesthetic injection. Furthermore, pre-placement of the jet-injected local anesthetic may obviate the need for the inclusion of local anesthetic into the triamcinolone injection. This would decrease the amount of fluid injected, which could have positive pain modulation by decreased tissue disruption.

Objective: To evaluate the effectiveness of needle free jet injection (J-tip) administration of 2% lidocaine in reduction of the pain experienced during trigger digit 40 mg/ml triamcinolone injection.

Hypothesis: Needle free jet injection (J-tip) administration of 2% lidocaine will prove an equal or superior means of pain reduction when compared to 2% lidocaine injection in the setting of trigger digit triamcinolone injections.


Eligibility criteria: Inclusion Criteria:

* Patients who present to the Hand Clinic at Brigham and Women's Hospital or Brigham and Women's Faulkner Hospital, are 18 years of age or older and are indicated for a trigger digit steroid injection will be eligible for participation

Primary outcomes:
measure: Difference in Visual-analog Score (VAS) for Anticipated Pain Prior to Injection and Actual Pain After Injection
timeFrame: Our outcome measure was collected within the 60 seconds before and following the steroid injection.
Secondary outcomes:
Other outcomes:
Locations:
city: Boston
country: United States
facility: Brigham and Women's Hospital
state: Massachusetts
Study officials:
affiliation: Brigham and Women's Hospital
name: Philip E Blazar, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Lysakowski C, Dumont L, Tramer MR, Tassonyi E. A needle-free jet-injection system with lidocaine for peripheral intravenous cannula insertion: a randomized controlled trial with cost-effectiveness analysis. Anesth Analg. 2003 Jan;96(1):215-9, table of contents. doi: 10.1097/00000539-200301000-00044.
citation: Ferayorni A, Yniguez R, Bryson M, Bulloch B. Needle-free jet injection of lidocaine for local anesthesia during lumbar puncture: a randomized controlled trial. Pediatr Emerg Care. 2012 Jul;28(7):687-90. doi: 10.1097/PEC.0b013e31825d210b.
citation: Jimenez N, Bradford H, Seidel KD, Sousa M, Lynn AM. A comparison of a needle-free injection system for local anesthesia versus EMLA for intravenous catheter insertion in the pediatric patient. Anesth Analg. 2006 Feb;102(2):411-4. doi: 10.1213/01.ane.0000194293.10549.62.
citation: Spanos S, Booth R, Koenig H, Sikes K, Gracely E, Kim IK. Jet Injection of 1% buffered lidocaine versus topical ELA-Max for anesthesia before peripheral intravenous catheterization in children: a randomized controlled trial. Pediatr Emerg Care. 2008 Aug;24(8):511-5. doi: 10.1097/PEC.0b013e31816a8d5b.
citation: Kolind-Sorensen V. Treatment of trigger fingers. Acta Orthop Scand. 1970;41(4):428-32. doi: 10.3109/17453677008991530. No abstract available.
citation: Lapidus PW, Guidotti FP. Stenosing tenovaginitis of the wrist and fingers. Clin Orthop Relat Res. 1972 Mar-Apr;83:87-90. doi: 10.1097/00003086-197203000-00015. No abstract available.
citation: Rhoades CE, Gelberman RH, Manjarris JF. Stenosing tenosynovitis of the fingers and thumb. Results of a prospective trial of steroid injection and splinting. Clin Orthop Relat Res. 1984 Nov;(190):236-8.
citation: Murphy D, Failla JM, Koniuch MP. Steroid versus placebo injection for trigger finger. J Hand Surg Am. 1995 Jul;20(4):628-31. doi: 10.1016/S0363-5023(05)80280-1.