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Lateral Pedicled Nasoseptal Flaps for Endoscopic Draf III Procedure in Patients With Frontal Sinus Inverted Papilloma

NCT05363423 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 22

Last updated 2022-05-05

No results posted yet for this study

Summary

This is a retrospective case series study. The Draf III procedure exposes excessive bare bone, resulting in frontal ostium restenosis and surgical failure. For tumors originating from frontal sinus, especially inverted papillomas, abrading of bone around frontal ostium often exacerbate the restenosis. This study aims to retrospectly recruit patients with frontal sinus inverted papillomas who received Draf III procedure in our center during 2015-2021 and investigated the efficacy of a novel pedicled nasoseptal flap for endoscopic frontal sinus procedures. Each subject received a CT and magnetic resonance imaging (MRI) scans before operation. The subjects were followed up postoperative for at least 12 months to check the epithelization status and whether the neo-ostium were patent.

Conditions

  • Draf III Procedure
  • Naso-septal Flap
  • Inverted Papilloma

Interventions

PROCEDURE

Draf III procedure with lateral pedicled nasoseptal flaps applied

The standard Draf III procedure was performed as described by Gross and Wormald using an "outside-in" technique. The cranial portion of the nasal septum was removed, and the frontal process of the maxilla and frontal beak were carefully abraded, resulting in the "frontal T". Distinct to the procedure of Gross and Wormald, the frontal T was then lowered to the first branch of the anterior ethmoidal artery instead of the first olfactory fibre. Type 1 flaps consisted of mucosa over the lateral nasal wall, and type 2 flaps consisted of the aforementioned mucosa and corresponding septal mucosa. After Draf III procedure, type 1 flaps were used to cover the bare bone of the ipsilateral frontal process and part of the ipsilateral anterior frontal table, which also constituted the bare bone area of the Draf II procedure. Type 2 flaps were used to cover for the bare bone of the ipsilateral frontal process and bilateral anterior or posterior frontal table.

PROCEDURE

Draf III procedure without any flap applied

The standard Draf III procedure was performed as described by Gross and Wormald using an "outside-in" technique. The cranial portion of the nasal septum was removed, and the frontal process of the maxilla and frontal beak were carefully abraded, resulting in the "frontal T". Distinct to the procedure of Gross and Wormald, the frontal T was then lowered to the first branch of the anterior ethmoidal artery instead of the first olfactory fibre.

Sponsors & Collaborators

  • Beijing Tongren Hospital

    lead OTHER

Principal Investigators

  • Luo Zhang · Beijing Tongren Hospital

Eligibility

Min Age
18 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-04-01
Primary Completion
2022-05-10
Completion
2022-06-01

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05363423 on ClinicalTrials.gov