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The assessment of microcirculatory function plays a pivotal role in perioperative medicine and intensive care. One promising method for evaluating microcirculatory function is the microscopic analysis of the oral mucosal microvasculature. However, this method is not currently fully validated.
The aim of this study is to assess the repeatability of sublingual microcirculation measurements using the CytoCam-IDF device (Braedius Medical).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Healthy Volunteers | Healthy Volunteers | ||
| Critically ill | Patients Hospitalized in the ICU |
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| Measure | Description | Time Frame |
|---|---|---|
| FCD (Functional Capillary Density) | Sublingual Microcirculation Assessment Sublingual microcirculation will be assessed using the CytoCam-IDF camera (Braedius Medical, Huizen, The Netherlands). The measurement technique involves gently applying the microscope probe with a disposable cap to the sublingual mucosa and recording short video sequences. The device utilizes green LED light to visualize moving blood cells, allowing for subsequent computerized analysis of capillary density and flow quality within the microvessels. Two operators will perform 3 series of measurements at 5-minute intervals with Cytocam - IDF microcirculation camera. Each series will consist of measurements taken from 3 adjacent sites. All measurements will be performed by the same two individuals Unit of measurement: mm/mm^2 | From enrollment every 5 minutes (3 measurements per operator) - approx. 20 min. |
| MFI (Microvascular Flow Index) | Sublingual Microcirculation Assessment Sublingual microcirculation will be assessed using the CytoCam-IDF camera (Braedius Medical, Huizen, The Netherlands). The measurement technique involves gently applying the microscope probe with a disposable cap to the sublingual mucosa and recording short video sequences. The device utilizes green LED light to visualize moving blood cells, allowing for subsequent computerized analysis of capillary density and flow quality within the microvessels. Two operators will perform 3 series of measurements at 5-minute intervals with Cytocam - IDF microcirculation camera. Each series will consist of measurements taken from 3 adjacent sites. All measurements will be performed by the same two individuals Unit of measurement: 0 - no flow / 1 -intermittent flow / 2 - sluggish flow / 3 - continuous flow | From enrollment every 5 minutes (3 measurements per operator) - approx. 20 min. |
| HI (Heterogeneity Index) | Sublingual Microcirculation Assessment Sublingual microcirculation will be assessed using the CytoCam-IDF camera (Braedius Medical, Huizen, The Netherlands). The measurement technique involves gently applying the microscope probe with a disposable cap to the sublingual mucosa and recording short video sequences. The device utilizes green LED light to visualize moving blood cells, allowing for subsequent computerized analysis of capillary density and flow quality within the microvessels. Two operators will perform 3 series of measurements at 5-minute intervals with Cytocam - IDF microcirculation camera. Each series will consist of measurements taken from 3 adjacent sites. All measurements will be performed by the same two individuals Unit of measurements none, relative measurement |
| Measure | Description | Time Frame |
|---|---|---|
| TVD (Total Vessel Density) | Sublingual Microcirculation Assessment Sublingual microcirculation will be assessed using the CytoCam-IDF camera (Braedius Medical, Huizen, The Netherlands). The measurement technique involves gently applying the microscope probe with a disposable cap to the sublingual mucosa and recording short video sequences. The device utilizes green LED light to visualize moving blood cells, allowing for subsequent computerized analysis of capillary density and flow quality within the microvessels. Two operators will perform 3 series of measurements at 5-minute intervals with Cytocam - IDF microcirculation camera. Each series will consist of measurements taken from 3 adjacent sites. All measurements will be performed by the same two individuals Unit of measurement: mm/mm^2 |
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Group 1: Healthy Volunteers
Inclusion Criteria:
Exclusion Criteria:
Group 2: Patients Hospitalized in the ICU
Inclusion Criteria:
Exclusion Criteria:
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Patients hospitalized in the ICU at the University Clinical Center in Gdańsk, or healthy volunteers
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Karol P. Steckiewicz, MD, PhD | Contact | +48 58 349 32 80 | karol.steckiewicz@gumed.edu.pl |
| Name | Affiliation | Role |
|---|---|---|
| Karol P. Steckiewicz, MD, PhD | Medical University of Gdansk | Principal Investigator |
| Radosław Owczuk, MD, PhD, DSc, Prof. | Medical University of Gdansk | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Medical University of Gdanks | Gdansk | Poland |
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| ID | Term |
|---|---|
| D016638 | Critical Illness |
| ID | Term |
|---|---|
| D020969 | Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| From enrollment every 5 minutes (3 measurements per operator) - approx. 20 min. |
| From enrollment every 5 minutes (3 measurements per operator) - approx. 20 min. |
| PVD (Perfused Vessel Density) | Sublingual Microcirculation Assessment Sublingual microcirculation will be assessed using the CytoCam-IDF camera (Braedius Medical, Huizen, The Netherlands). The measurement technique involves gently applying the microscope probe with a disposable cap to the sublingual mucosa and recording short video sequences. The device utilizes green LED light to visualize moving blood cells, allowing for subsequent computerized analysis of capillary density and flow quality within the microvessels. Two operators will perform 3 series of measurements at 5-minute intervals with Cytocam - IDF microcirculation camera. Each series will consist of measurements taken from 3 adjacent sites. All measurements will be performed Unit of measurement: mm/mm^2 | From enrollment every 5 minutes (3 measurements per operator) - approx. 20 min. |
| PPV (Proportion of Perfused Vessels) | Sublingual Microcirculation Assessment Sublingual microcirculation will be assessed using the CytoCam-IDF camera (Braedius Medical, Huizen, The Netherlands). The measurement technique involves gently applying the microscope probe with a disposable cap to the sublingual mucosa and recording short video sequences. The device utilizes green LED light to visualize moving blood cells, allowing for subsequent computerized analysis of capillary density and flow quality within the microvessels. Two operators will perform 3 series of measurements at 5-minute intervals with Cytocam - IDF microcirculation camera. Each series will consist of measurements taken from 3 adjacent sites. All measurements will be performed by the same two individuals Unit of measurement: % | From enrollment every 5 minutes (3 measurements per operator) - approx. 20 min. |
| RBCv (Red Blood Cell Velocity) | Sublingual Microcirculation Assessment Sublingual microcirculation will be assessed using the CytoCam-IDF camera (Braedius Medical, Huizen, The Netherlands). The measurement technique involves gently applying the microscope probe with a disposable cap to the sublingual mucosa and recording short video sequences. The device utilizes green LED light to visualize moving blood cells, allowing for subsequent computerized analysis of capillary density and flow quality within the microvessels. Two operators will perform 3 series of measurements at 5-minute intervals with Cytocam - IDF microcirculation camera. Each series will consist of measurements taken from 3 adjacent sites. All measurements will be performed by the same two individuals Unit of measurement: mm/s | From enrollment every 5 minutes (3 measurements per operator) - approx. 20 min. |
| Heart rate and its variability (HRV) | Heart rate and its variability (HRV) will be recorded using a Holter ECG monitor - electrodes on the chest. Frequency domain method will be used. The number of NN (beat to beat) intervals that match high frequency band (0.15 to 0.4 Hz) or low frequency band (0.04 to 0.15 Hz) will be recorded. | From enrollment every 5 minutes (3 measurements per operator) - approx. 20 min. |