ClinicalTrials.gg
RecruitingNCT07541612SPINE-NIRSUpdated Apr 21, 2026

NIRS MONITORING OF SPINAL CORD ISCHEMIA IN AORTIC SURGERY

An observational study in Spinal Cord Injury, sponsored by Monaldi Hospital. Recruiting at 1 site in Italy. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-04-21.

Sponsored by Monaldi Hospital · Observational

From the registry’s dates

  • Started Aug 2025; still recruiting 1 year 2 months later.

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Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
120
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 33 studies in Spinal Cord Injuries with a site in Italy — 9 open to participants now, 12 under way, none of them phase 3. Spinal Cord Injuries · Italy.

Started
2025
with 2 others
Observational
6 of 33
2 open now
Primary completion
2026-12
later than 2 of 11 live
Registered
25th of 33
by date

Among the 33 studies in Spinal Cord Injuries with a site in Italy, this one is one of 3 that started in 2025, is one of 6 observational ones, reaches primary completion later than 2 of the 11 other live ones, and was the 25th registered.

Spinal Cord Injuries

2,026 studies on the registry are indexed under Spinal Cord Injuries; 538 are open to participants now.

Browse Spinal Cord Injuries studies →

Open to participants now

9 of the 33 studies in Spinal Cord Injuries with a site in Italy are open now. Recruiting first, the newest first:

3 more — sign in →

All 9 open studies →

A study can be open while its sites in Italy have not opened yet or have stopped. Only those recruiting at a site in Italy →

Who these studies take

Of the 375 Spinal Cord Injuries studies recruiting now, 166 (44%) set no upper age limit and 158 (42%) stop at 75 or younger; 41 take children under 18; 52 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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02

Study summary

This prospective observational study aims to evaluate the feasibility and clinical utility of near-infrared spectroscopy (NIRS) monitoring applied to paraspinal muscles as a surrogate marker of spinal cord perfusion in patients undergoing major noncardiac surgery.

Spinal cord ischemia represents a rare but devastating complication, often difficult to detect in real time. NIRS provides a non-invasive, continuous monitoring of regional tissue oxygen saturation (rSO₂), potentially reflecting microcirculatory changes in paraspinal tissues and indirectly spinal cord perfusion.

The study will enroll adult patients undergoing major surgery requiring advanced hemodynamic monitoring. NIRS sensors will be placed over paraspinal regions, and rSO₂ values will be continuously recorded throughout the perioperative period. Hemodynamic parameters, including arterial pressure, cardiac output, and other relevant clinical variables, will be simultaneously collected.

The primary objective is to assess changes in paraspinal rSO₂ during perioperative management and their relationship with systemic hemodynamic variables. Secondary objectives include the evaluation of the association between rSO₂ variations and postoperative neurological outcomes, as well as the feasibility and reliability of this monitoring technique in routine clinical practice.

This study may provide preliminary evidence supporting the use of NIRS as a bedside, non-invasive tool for early detection of impaired spinal cord perfusion and for guiding hemodynamic optimization strategies.

Read the detailed description

pinal cord ischemia is a rare but severe complication associated with major surgical procedures, particularly in patients undergoing complex hemodynamic management. Early detection of impaired spinal cord perfusion remains challenging due to the lack of reliable, continuous, and non-invasive monitoring tools. Current monitoring strategies are indirect and often fail to provide timely information on regional perfusion changes.

Near-infrared spectroscopy (NIRS) is a non-invasive technique that measures regional tissue oxygen saturation (rSO₂) by analyzing the absorption of infrared light by oxygenated and deoxygenated hemoglobin. When applied to paraspinal muscles, NIRS may reflect local microcirculatory changes and potentially serve as a surrogate marker of spinal cord perfusion.

This is a single-center, prospective observational study designed to investigate the feasibility and clinical applicability of paraspinal NIRS monitoring in adult patients undergoing major noncardiac surgery requiring advanced hemodynamic monitoring. Patients will be monitored intraoperatively and during the early postoperative period using NIRS sensors placed bilaterally over the paraspinal regions.

Continuous rSO₂ measurements will be collected and integrated with routinely monitored hemodynamic variables, including arterial blood pressure, heart rate, and, when available, advanced parameters such as cardiac output and dynamic indices of fluid responsiveness. Data will be recorded at predefined time points and during relevant clinical events, such as induction of anesthesia, surgical phases, hemodynamic instability, and postoperative recovery.

The study aims to explore the physiological relationship between paraspinal rSO₂ and systemic hemodynamic changes, as well as to assess the feasibility, signal stability, and reproducibility of NIRS measurements in the perioperative setting. Particular attention will be given to identifying patterns of rSO₂ variation associated with hemodynamic fluctuations.

Data will be prospectively collected using standardized case report forms (CRFs). Data quality will be ensured through predefined data entry procedures, consistency checks, and periodic review of collected variables. All data will be anonymized prior to analysis.

A descriptive statistical approach will be used to summarize baseline characteristics and perioperative variables. Exploratory analyses will be conducted to evaluate the association between rSO₂ trends and hemodynamic parameters. Where appropriate, correlation analyses and regression models may be applied to investigate potential predictors of rSO₂ variation.

Given the exploratory nature of the study, no formal sample size calculation is required; however, enrollment is planned to ensure an adequate representation of the target population and to allow meaningful exploratory analysis.

This study is expected to provide preliminary evidence on the role of paraspinal NIRS monitoring as a non-invasive bedside tool for assessing tissue oxygenation and potentially guiding perioperative hemodynamic management strategies.

03

Conditions studied

  • Spinal Cord Injury

Keywords

  • Near-Infrared Spectroscopy
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Adult patients undergoing elective thoracic and thoracoabdominal aortic repair procedures, including open, endovascular (TEVAR/FEVAR), and hybrid interventions, at Monaldi Hospital, A.O.R.N. Ospedali dei Colli, Naples, Italy. Participants will be recruited consecutively from the vascular and cardiovascular surgical units where intraoperative spinal cord monitoring is routinely performed.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Adult patients aged 18 years or older Patients scheduled for elective thoracic or thoracoabdominal aortic repair, including open, endovascular (TEVAR/FEVAR), or hybrid procedures Patients undergoing intraoperative paraspinal near-infrared spectroscopy (NIRS) monitoring Written obtained before enrollment

Exclusion criteria

Exclusion Criteria:

Age under 18 years Emergency surgical procedures Pregnancy Pre-existing paraplegia or severe neurological impairment Skin lesions or conditions preventing correct placement of NIRS sensors Refusal or inability to provide

Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
120 participants (estimated)
Patient registry
No

Groups and cohorts

  • High-risk patients (NIRS + CSF drainage)

    Patients at high risk of spinal cord ischemia undergoing aortic surgery, managed with paraspinal near-infrared spectroscopy (NIRS) monitoring combined with cerebrospinal fluid (CSF) drainage according to the study protocol.

    Diagnostic Test: Near-Infrared Spectroscopy (NIRS) · Procedure: Cerebrospinal fluid drainage via lumbar catheter (L3-L4) to maintain cerebrospinal fluid pressure below target levels and optimize spinal cord perfusion pressure during aortic surgery.

  • Low-risk patients (NIRS alone)

    Patients at lower risk of spinal cord ischemia undergoing aortic surgery, managed with paraspinal near-infrared spectroscopy (NIRS) monitoring without cerebrospinal fluid drainage according to the study protocol.

    Diagnostic Test: Near-Infrared Spectroscopy (NIRS)

Interventions

  • Diagnostic testNear-Infrared Spectroscopy (NIRS)

    Paraspinal sensors are applied bilaterally at thoracic-lumbar levels (approximately T8-L2) to continuously monitor regional oxygen saturation (rSO2). Data are recorded intraoperatively and during the early postoperative period (up to 72 hours), allowing detection of changes potentially associated with spinal cord hypoperfusion.

    Also known as: NIRS MONITORING, REGIONAL OXIMETRY, rSO2 monitoring, Near-Infrared Spectroscopy

  • ProcedureCerebrospinal fluid drainage via lumbar catheter (L3-L4) to maintain cerebrospinal fluid pressure below target levels and optimize spinal cord perfusion pressure during aortic surgery.

    A lumbar cerebrospinal fluid drainage catheter is inserted (typically at L3-L4) and managed to maintain cerebrospinal fluid pressure below 10 mmHg, with the aim of optimizing spinal cord perfusion pressure (SCPP ≥75 mmHg) during and after aortic surgery.

    Also known as: CSF DRAINAGE, LUMBAR DRANAIGE, CEREBROSPINAL FLUID DRANAIGE, SPINAL DRANAIGE

06

What researchers measure

Primary outcomes

  1. Intraoperative detection of spinal cord ischemia by paraspinal NIRS

    Incidence of intraoperative spinal cord ischemia identified by significant reduction in paraspinal regional oxygen saturation measured with near-infrared spectroscopy during thoracoabdominal aortic surgery.

    Time frame: From anesthesia induction until completion of surgery

07

Study locations

1 of 1 sites recruiting
  • AORN Ospedali dei Colli - Monaldi Hospital
    Naples, Italy 80100, Italy
    Recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2025 (actual). Primary completion is estimated for Dec 2026, 16 months after the start.

Of 124 non-industry observational studies under Spinal Cord Injuries, half reached primary completion within 36 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 74. This study's planned 16 months is below that.

Counting every sponsor, half of 135 studies reached it within 39 months; a quarter within 16 and three quarters within 78.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 14, 2026
First posted
Apr 21, 2026
StartActual
Aug 23, 2025
Primary completionEst.
Dec 31, 2026
CompletionEst.
Mar 30, 2027
Last update
Apr 21, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 21, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07541612
Lead sponsor
Monaldi Hospital
Responsible party
Salvatore Notaro (Principal Investigator, Anesthesiologist and Intensive Care Specialist, Monaldi Hospital) — Principal investigator
First posted
Apr 21, 2026
Start date
Aug 23, 2025
Primary completion
Dec 31, 2026 (estimated)
Completion
Mar 30, 2027 (estimated)
Last update
Apr 21, 2026

Study contacts

Salvatore Notaro
Contact
salvatore.notaro@ospedalideicolli.it
+393299744318
Salvatore Notaro
principal investigator · AORN Ospedali dei Colli - Monaldi Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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