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ICG Use in Angiography for Nasoseptal Flap Harvest

Proposal for Intraoperative Administration of Intravenous Indocyanine Green to Evaluate Sphenopalatine Artery Location and Patency in Harvesting and Positioning a Pedicled Nasoseptal Mucosal Flap in Endoscopic Endonasal Cranial Base Surgery

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02117310
Acronym
ICG
Enrollment
5
Registered
2014-04-17
Start date
2015-03-31
Completion date
2015-11-30
Last updated
2017-04-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Skull Base Neoplasms

Brief summary

This is a feasibility study in which indocyanine green (ICG) will be administered during routine expanded endonasal approach (EEA) for cranial base pathologies in which a nasoseptal flap harvest will be necessary. The research entails administering ICG, which is already widely used during open neurosurgical procedures, to identify the blood supply at two distinct stages of endonasal cranial base surgery: during nasoseptal flap harvest and after final positioning of the nasoseptal flap to ensure its viability before ending the case.

Detailed description

This study is being done to determine if it is feasible to use angiography during endo-nasal surgery. During the angiography indocyanine green (ICG) will be injected into the patients IV tubing to help see the arteries. ICG is routinely used in vascular surgeries on the brain but not for endo-nasal surgery. The purpose of this study is to see how well intraoperative angiography using ICG can be done during endonasal surgery.

Interventions

DRUGindocyanine green

ICG will be administered to identify the blood supply at two distinct stages of endonasal cranial base surgery: during nasoseptal flap harvest and after final positioning of the nasoseptal flap to ensure its viability before ending the case.

Sponsors

Ohio State University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age 18 and above * Patients undergoing an EEA for cranial base pathology that may require nasoseptal flap harvest

Exclusion criteria

* History of sulfa, iodide, or penicillin allergy * Pregnant or breast feeding * Preoperative lack of indication for nasoseptal flap harvest * Previous anaphylactic reaction to ICG

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants for Which Angiograghy is Used to Visualize Nasoseptal Mucosa Better Than What is Done Standard of Care in This Surgery.During surgeryThe researcher will administer ICG, which is already widely used during open neurosurgical procedures, to identify the blood supply at two distinct stages of endonasal cranial base surgery: during nasoseptal flap harvest and after final positioning of the nasoseptal flap to ensure its viability before ending the case. This study will determine feasibility of other larger clinical trials using this method.

Countries

United States

Participant flow

Participants by arm

ArmCount
ICG-Angiography With Administered ICG
Indocyanine green: ICG will be administered to identify the blood supply at two distinct stages of endonasal cranial base surgery: during nasoseptal flap harvest and after final positioning of the nasoseptal flap to ensure its viability before ending the case.
5
Total5

Baseline characteristics

CharacteristicICG-Angiography With Administered ICG
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
4 Participants
Age, Continuous41.4 years
Region of Enrollment
United States
5 participants
Sex: Female, Male
Female
3 Participants
Sex: Female, Male
Male
2 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
0 / 5
serious
Total, serious adverse events
0 / 5

Outcome results

Primary

Number of Participants for Which Angiograghy is Used to Visualize Nasoseptal Mucosa Better Than What is Done Standard of Care in This Surgery.

The researcher will administer ICG, which is already widely used during open neurosurgical procedures, to identify the blood supply at two distinct stages of endonasal cranial base surgery: during nasoseptal flap harvest and after final positioning of the nasoseptal flap to ensure its viability before ending the case. This study will determine feasibility of other larger clinical trials using this method.

Time frame: During surgery

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ICG-Angiography With Administered ICGNumber of Participants for Which Angiograghy is Used to Visualize Nasoseptal Mucosa Better Than What is Done Standard of Care in This Surgery.5 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026