The Effect of Local Anesthesia Techniques on Postoperative Pain After Laser Treatment of Pilonidal Sinus

NCT07408414 — Not applicable, Recruiting, 100 participants, Opća županijska bolnica Požega

ClinicalTrials Daily  ·  Areas  ·  Conditions  ·  Drugs  ·  Sponsors  ·  

Procjena Postoperativne Boli Konvencionalnom i Tumescentnom Anestezijom u Laserskom Tretmanu Pilonidalnog Sinusa

RegistryNCT07408414
StatusRecruiting
PhaseNot applicable
Study typeInterventional; randomized, parallel, masking: single, treatment
Enrollment100 (Estimated)
SponsorOpća županijska bolnica Požega (Other)
ConditionsPilonidal Cyst and Sinus Without Abscess, Pilonidal Sinus Disease, Pilonidal Sinus Treatment, Laser Ablation
Interventionslocal anesthesia using 2% lidocaine, SiLaC, Questionnaire and physical examination, Tumescent local anesthesia (Drug, device, other)
Datesstart 2025-09-04, primary completion 2026-09-30 (estimated), completion 2027-09-30 (estimated), first posted 2026-02-13, last updated 2026-02-13
Locations1 site in Croatia

Related Papers Related Patents Related Grants Related Experts
All trials for Pilonidal Cyst and Sinus Without Abscess All trials for Pilonidal Sinus Disease All trials of local anesthesia using 2% lidocaine All trials of SiLaC

-Summary

"Assessment of postoperative pain with conventional and tumescent local anesthesia in the laser treatment of pilonidal sinus."

The aim of this study is to:

examine the possible difference in postoperative pain between two local anesthesia procedures after laser treatment of pilonidal sinus disease on the first and second postoperative day, as well as one week after surgery.

During the procedure, two well-established anesthesia techniques are used to make the surgical area painless.

The first is local anesthesia, in which the anesthetic is injected into and under the skin.

The second procedure is tumescent anesthesia. In this procedure, the anesthetic in diluted form is introduced into the subcutaneous tissue. Both procedures are used in surgery and are standard methods of local anesthesia.

Expand all sections  ·  Collapse all

+Detailed description

Title/topic of the research project:

Assessment of postoperative pain under conventional and tumescent local anesthesia in laser treatment of pilonidal sinus

Type of project/research:

Prospective, randomized study

Location of research:

General County Hospital Požega

Time period of the research:

01/09/2025 - 31/08/2027, or until a sufficient number of participants is collected

Project funding:

Principal investigator

"Explanation of the research topic"

Introduction:

Pilonidal disease is very common - literature states that 2% of the population is affected, in a 2:1 ratio in favor of men. Although not lethal, it significantly reduces quality of life. It can be treated conservatively or surgically. Different anesthesia techniques can be used when preparing patients for surgery, such as local, spinal, and general anesthesia. Pain is one of the most important factors influencing quality of life after surgery. Many attempts have been made to select the most appropriate surgery and anesthesia method to reduce pain during and after surgery.

Research shows that using local anesthesia for pilonidal sinus surgery is associated with reduced pain in the first 48 hours, shorter hospital stay, and lower use of analgesics. Therefore, local anesthesia may be appropriate for outpatient procedures.

Tumescent local anesthesia is a form of local anesthesia that, due to the addition of adrenaline and sodium bicarbonate, causes vasoconstriction and prolonged analgesia and reduces postoperative bleeding. Because of this, tumescent anesthesia is increasingly used in various dermatological and plastic-surgical procedures.

Aim of the research:

To examine possible differences in postoperative pain between two local anesthesia techniques after surgery.

Purpose of the research:

Evaluation of postoperative pain during laser treatment of pilonidal sinus depending on anesthesia technique.

Hypothesis:

There is a significant difference (p < 0.05) on the VAS pain scale (1-10) between the two anesthesia techniques.

Methodology and materials:

All patients treated with laser method for pilonidal sinus disease will have demographic data collected, as well as pain assessment at the surgical site using the VAS scale before surgery and on days 1, 2 and 7 after surgery. Randomization is by sealed envelopes prior to surgery.

"Research plan \& participants"

Research plan:

From September 2025 to August 2028, patients who choose laser treatment for pilonidal sinus will be included after signing informed consent. Participation is voluntary. Randomization will be described, a questionnaire completed, and pain will be evaluated on the VAS scale at four time points: preoperative, first, second, and seventh postoperative day. Results will be collected in sealed envelopes and assessed blindly.

Expected scientific contribution:

If a difference exists between the groups, the method with less postoperative pain would be preferred and improve patient satisfaction.

Special notes:

To date, no study has examined these two methods regarding perceived postoperative pain during laser treatment of pilonidal sinus.

PARTICIPANTS

Number of participants:

Approximately one hundred

Inclusion criteria:

Adults with pilonidal sinus able to provide informed consent

Exclusion criteria:

Minors, recurrent pilonidal sinus, patients with chronic pain syndrome, prisoners

"Risks of participating in the research" Are participants minors, people with special needs, psychiatric patients, prisoners, detainees, or persons under investigation? NO Does the research involve a sensitive topic (law violations, sexual abuse, sexual orientation, etc.)? NO Does participation involve alcohol, tobacco, medication, psychoactive substances, or placebo? NO Are participants exposed to potential physical or psychological harm? NO Does the procedure involve exercise or physical activity? NO

Other possible risks:

None Is the research risk minimal? YES

"Participant consent"

Description of how consent is obtained:

Before filling out the questionnaire, the examiner will verbally explain the goal and method of the study. The participant will receive written informed consent and sign approval to participate.

How the research is explained:

Verbally and in writing

Compensation for participants:

/

Possible risks:

None

Protection of participant identity:

Anonymous questionnaire

Confidentiality:

Data will be used only for the research and available only to the researcher. The questionnaire is anonymous and voluntary.

Use of audio/video/electronic recordings:

/

Date and signature of researcher:

28/07/2025

+Arms and interventions

ArmTypeInterventionsDescription
Conventional local anesthesia for SiLaCActive comparatorDrug: local anesthesia using 2% lidocaine; Device: SiLaC; Other: Questionnaire and physical examinationLocal anesthesia is administered before laser treatment of pinlonidal sinus disease. Postoperative the pain score is measured using the visual analog scale.
Tumescent local anesthesia for SiLaCActive comparatorDevice: SiLaC; Other: Questionnaire and physical examination; Drug: Tumescent local anesthesiaTumescent local anesthesia is administered before laser treatment of pinlonidal sinus disease. Postoperative the pain score is measured using the visual analog scale.
  • local anesthesia using 2% lidocaine (Drug): Intervention Type: Drug Intervention Name: Lidocaine 2% Description: Conventional local anesthesia using 2% lidocaine infiltrated into the operative field prior to SiLaC.
  • SiLaC (Device): Intervention Type: Device Intervention Name: 1470-nm radial-emitting laser fiber (SiLaC) Description: Thermal ablation of pilonidal sinus tracts using a 1470-nm radial-emitting laser fiber (1470 nm) with power adjusted between 8 and 10 Watt.
  • Questionnaire and physical examination (Other): Intervention Type: Other Intervention Name: Questionnaire and physical examination Description: Postoperative pain evaluation using a visual analog scale (VAS) questionnaire and physical examination.
  • Tumescent local anesthesia (Drug): Intervention Type: Drug Intervention Name: Tumescent local anesthetic solution Description: Tumescent solution prepared with 500 mL normal saline, 20 mL 2% lidocaine, one ampule of epinephrine (1 mg/mL), and 5 mL sodium bicarbonate; infiltrated into the operative field prior to SiLaC.

+Outcome measures

Primary outcomes

  • Pain score VAS - Day 1 [24 to 48 hours after surgery]: VAS (visual analog scale for pain) value obtained via questionnaire on day 1 after the operation.The VAS score has a scale of 1-10, where 1 represents completely pain-free and 10 represents the strongest imaginable pain.

+Eligibility

Sex: All, ages: 18 Years to any

Inclusion Criteria:

* Diagnosed pilonidal sinus disease
* Laser treatment for pilonidal sinus disease
* Able to provide informed consent

Exclusion Criteria:

* Recurrent pilonidal sinus
* Chronic pain syndrome
* Prisoners

+Locations (1)

FacilityCityCountryStatus
Opća županijska bolnica PožegaPožegaCroatiaRecruiting

+Publications

  • Hanke C, Dent M. Beyond Liposuction: Evolving Applications for Tumescent Anesthesia. J Drugs Dermatol. 2022 Jan 1;21(1):86-89. doi: 10.36849/JDD.2022.6279. PMID 35005857
  • Uttamani RR, Venkataram A, Venkataram J, Mysore V. Tumescent Anesthesia for Dermatosurgical Procedures Other Than Liposuction. J Cutan Aesthet Surg. 2020 Oct-Dec;13(4):275-282. doi: 10.4103/JCAS.JCAS_192_19. PMID 33911407
  • Dessily M, Dziubeck M, Chahidi E, Simonelli V. The SiLaC procedure for pilonidal sinus disease: long-term outcomes of a single institution prospective study. Tech Coloproctol. 2019 Dec;23(12):1133-1140. doi: 10.1007/s10151-019-02119-2. Epub 2019 Nov 26. PMID 31773347
  • Horesh N, Meiri H, Anteby R, Zager Y, Maman R, Carter D, Meyer R, Nachmany I, Ram E. Outcomes of Laser-Assisted Closure (SiLaC) Surgery for Chronic Pilonidal Sinus Disease. J Laparoendosc Adv Surg Tech A. 2023 Jun;33(6):556-560. doi: 10.1089/lap.2022.0567. Epub 2023 Mar 9. PMID 36888964

+Study documents