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Evaluering af Ikke-Termisk Plasma til Kirurgisk Sengeplads Dekontaminering og Vævsgenopretningsacceleration efter Total Thyroidektomi

3. november 2026 opdateret af: Benjamín Gonzalo Rodríguez Méndez, National Institute of Nuclear Research - Mexico

Evaluering af ikke-termisk plasma som en innovativ strategi til optimering af postkirurgisk sårbehandling hos patienter, der har gennemgået thyroideakirurgi: En etisk og klinisk tilgang

The goal of this clinical trial is to evaluate the therapeutic efficacy and safety of non-thermal plasma (NTP) as an adjuvant treatment for surgical bed decontamination and accelerated tissue repair in patients undergoing total thyroidectomy. The study aims to address the following objectives:

  • Does the intraoperative application of NTP to the surgical bed and closed incision promote accelerated tissue regeneration compared to conventional postoperative care?
  • Does NTP treatment reduce postoperative inflammatory response, pain intensity, and the incidence of site-specific complications (such as surgical site infection or seroma)?
  • What is the safety profile of helium-based NTP in the cervical anatomical region regarding neighboring neurovascular structures?

Participants will be randomized into two arms:

  1. The experimental group: Receiving a standardized application of helium-based NTP (at a frequency of 13.56 MHz) to the surgical bed prior to closure and subsequently to the sutured incision.
  2. The control group: Receiving standard-of-care surgical wound management.

Clinical follow-up will include quantitative assessment of healing rates, pain scales (VAS), and biochemical or clinical markers of inflammation at scheduled intervals (Days 1, 7, 15, and up to 12 weeks post-surgery).

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This prospective study addresses the two most critical limitations of conventional thyroid surgery: collateral thermal damage to noble structures and the risk of microscopic residual disease in incidental carcinoma cases.

The investigation focuses on the application of non-thermal plasma (NTP), a state of matter that generates a controlled 'cocktail' of Reactive Oxygen and Nitrogen Species (RONS). Unlike conventional energy-based devices (laser or electrocautery), NTP operates at low temperatures, eliminating lateral thermal dispersion and carbonization, thus preserving the functional integrity of the recurrent laryngeal nerve and parathyroid glands.

The standardized NTP protocol is executed in two distinct phases:

  1. Phase I (Hemostasis and Neuroprotection): Following thyroid gland resection, the surgical bed is exposed to a power density of 0.5 W/cm² for 8-10 minutes. This phase targets the carotid sheath and the tracheoesophageal groove to ensure immediate hemostasis and to modulate the inflammatory response through redox signaling, thereby preventing exuberant fibroplasia.
  2. Phase II (Selective Oncological Ablation): In cases where incidental malignancy is suspected or confirmed, an additional re-exposure of 10-12 minutes is performed specifically on the resection micro-margins. This phase leverages the selective cytotoxicity of RONS, which induces mitochondrial dysfunction and apoptosis in neoplastic cells while sparing healthy surrounding tissue.

The study aims to correlate this two-phase intervention with three primary clinical pillars: a) Absolute surgical safety (0% complication rate in nerve paralysis and hypocalcemia). b) Oncological sterilization (undetectable Thyroglobulin levels <0.1 ng/dL at 6 months). c) High-fidelity tissue mimicry (evaluated via VSS and POSAS scales), hypothesizing that NTP-mediated redox modulation achieves superior cosmetic and functional outcomes compared to traditional photobiomodulation.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

26

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

    • State of Mexico
      • Ocoyoacac, State of Mexico, Mexico, 52750
        • Rekruttering
        • Plasma Physics Laboratory, National Institute of Nuclear Research
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Patients aged 18 years or older.
  • Diagnosis of thyroid pathology requiring total or subtotal thyroidectomy.
  • Signed Informed Consent Form (ICF).
  • Patients capable of complying with the 12-week follow-up schedule.

Exclusion Criteria:

  • History of previous neck surgery or radiation therapy in the cervical area.
  • Known history of keloid formation or hypertrophic scarring.
  • Presence of active systemic or local infection at the time of surgery.
  • Patients with implanted electronic devices (e.g., pacemakers or defibrillators) due to the use of RF-based plasma.
  • Pregnancy or breastfeeding.
  • Concurrent use of systemic corticosteroids or immunosuppressive drugs that may impair wound healing.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Treatment with Non-Thermal Plasma (NTP)

The single experimental arm consists of patients undergoing total or partial thyroidectomy who receive a standardised treatment with Non-Thermal Plasma (NTP). This group is evaluated for surgical safety (nerve preservation/hemostasis) and oncological efficacy (residual disease control).

Intraoperative and postoperative application of non-thermal plasma (NTP) generated via a 13.56 MHz Radiofrequency (RF) generator at 20 Watts. High-purity helium gas will be used as the precursor at a flow rate of 0.5 LPM. The plasma jet will be applied directly to the surgical bed (pre-closure) and the sutured incision (post-closure), maintaining a distance of 1-3 mm from the tissue. The dosage is standardized at 1 minute per linear centimeter of the incision.

Aktiv komparator: Standard Postoperative Care

Participants randomized to this arm will receive the institution's current standard postoperative wound care following thyroid surgery. This includes routine surgical wound closure (sutures/staples) and standard dressing, without any application of non-thermal plasma. All other aspects of perioperative care, including pain management and follow-up visits, will follow standard institutional protocols.

Standard surgical wound closure using conventional suturing techniques followed by the application of sterile dressings according to institutional protocols. No plasma treatment will be administered.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Time to complete wound re-epithelialization.
Tidsramme: From day 0 (day of surgery) up to day 21.

The number of days required for to achieve 100% skin closure of the surgical incision. Complete re-epithelialization is clinically defined as a fully closed wound without drainage, scabbing, or the need for dressings. Assessment will be performed by a blinded evaluator. Unit of measure: Days.

From day 0 (day of surgery) up to day 21.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Postoperative pain intensity.
Tidsramme: At 2, 12, 24, 36, 48, and 72 hours, and on days 7 and 14 post-surgery.

Patient-reported pain levels assessed using the Visual Analog Scale (VAS), where 0 represents "no pain" and 10 represents the worst imaginable pain. Unit of measure: VAS Score (0-10).

At 2, 12, 24, 36, 48, and 72 hours, and on days 7 and 14 post-surgery.
Incidence of surgical site complications.
Tidsramme: From surgery through 28 days post-surgery.

Total number of participants experiencing at least one postoperative complication, specifically: surgical site infection (SSI), wound dehiscence, hematoma, or seroma formation, as confirmed by clinical diagnosis. Unit of measure: Number of participants.

From surgery through 28 days post-surgery.
Long-term scar quality assessment.
Tidsramme: At 12 weeks post-surgery.

Objective evaluation of the scar using the Vancouver Scar Scale (VSS). The scale assesses four parameters: vascularity, pigmentation, pliability, and height. Total scores range from 0 to 13, with lower scores indicating better aesthetic and functional outcomes. Unit of measure: VSS Score (0-13).

At 12 weeks post-surgery.
Cumulative analgesic consumption.
Tidsramme: First 48 hours post-surgery.

Total amount of rescue analgesic medication (e.g., paracetamol or NSAIDs) required by the patient during the immediate postoperative period. This measure reflects the indirect impact of NTP on pain management. Unit of measure: Milligrams (mg) of medication.

First 48 hours post-surgery.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

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Studer store datoer

Studiestart (Faktiske)

20. august 2025

Primær færdiggørelse (Faktiske)

30. september 2026

Studieafslutning (Anslået)

30. december 2026

Datoer for studieregistrering

Først indsendt

26. januar 2026

Først indsendt, der opfyldte QC-kriterier

26. januar 2026

Først opslået (Faktiske)

3. februar 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

5. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

3. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • CISEI-201/25

Plan for individuelle deltagerdata (IPD)

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