The main goal of the study is to describe the sublingual microcirculation of children with type 1 diabetes mellitus (T1D) with stable and satisfactory treatment of the disease and to compare it with previously measured parameters of healthy children, NCT05324228.
After recording the basic anthropometric parameters, pressure and pulse, each child who meets the inclusion criteria will have their microcirculation measured using a Sidestream Dark-Field (SDF) probe placed sublingually by one examiner using the SDF method. The measurement will be performed in supine position in a disease-free period, with normal diets, at least 2 hours after the last meal, for girls outside the menses period. Premedication or analgesia will not be used. A total of 3 video clips will be recorded from different parts of the sublingual area with a minimum length of 20 seconds in a row, unless the child needs a short break between measurements. The recorded videos will then be processed offline by one evaluator who is trained and experienced in microcirculation evaluation, three best and most stable parts of each video clip will be analysed.
Study Type
OBSERVATIONAL
Enrollment
30
Masarykova Nemocnice v Usti nad Labem, Krajska Zdravotni a.s.
Ústí nad Labem, Czechia
Determination of Total Vascular Density of sublingual microcirculation of children with T1D
Total length of vessels divided by total surface of area
Time frame: baseline
Determination of Microvascular Flow Index (MFI) of sublingual microcirculation of children with T1D
The image is divided into four quadrants and the predominant type of flow (absent = 0, intermittent = 1, sluggish = 2, normal = 3, and hyperdynamic = 4) is assessed in each quadrant. The MFI score represents the averaged values of the four. A 20 μm cut-off is used to separate small vessels (mostly capillaries) from large vessels (mostly venules).
Time frame: baseline
Determination of Small Vessel Density of sublingual microcirculation of children with T1D
Total length of small vessels divided by total surface of area. A 20 μm cut-off is used to separate small vessels (mostly capillaries) from large vessels (mostly venules).
Time frame: baseline
Determination of Proportion of Perfused Vessels (all) of sublingual microcirculation of children with T1D
The proportion of perfused vessels (PPV \[%\]) can be calculated as follows: 100 × (total number of vessels - \[no flow + intermittent flow\])/total number of vessels.
Time frame: baselina
Determination of Proportion of Perfused Small Vessels (PPSV) of sublingual microcirculation of children with T1D
The proportion of perfused small vessels (PPSV \[%\]) can be calculated as follows: 100 × (total number of small vessels - \[no flow + intermittent flow\])/total number of small vessels. A 20 μm cut-off is used to separate small vessels (mostly capillaries) from large vessels (mostly venules).
Time frame: baseline
Determination of Perfused Vessel Density (PVD) of sublingual microcirculation of children with T1D
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Total length of vessels - (no flow + intermittent flow) divided by total surface of area
Time frame: baseline
Determination of Perfused Small Vessel Density (PSVD) of sublingual microcirculation of children with T1D
Total length of small vessels - (small vessels with no flow + intermittent flow) divided by total surface of area. A 20 μm cut-off is used to separate small vessels (mostly capillaries) from large vessels (mostly venules).
Time frame: baseline
Determination of DeBacker Score of sublingual microcirculation of children
In this score, three equidistant horizontal and three equidistant vertical lines are drawn on the screen. Vessel density can be calculated as the number of vessels crossing the lines divided by the total length of the lines. Higher number means better microcirculation.
Time frame: baseline
Differences in Total Vascular Density of sublingual microcirculation in different age and gender categories in children with T1D
Comparison in children aged 6-10,9; 11-14,9; and 15-18,9 years and males vs. females.
Time frame: baseline
Differences in Microvascular Flow Index (MFI) of sublingual microcirculation in different age and gender categories in children with T1D
Comparison in children aged 6-10,9; 11-14,9; and 15-18,9 years and males vs. females.
Time frame: baseline
Differences in Small Vessel Density of sublingual microcirculation in different age and gender categories in children with T1D
Comparison in children aged 6-10,9; 11-14,9; and 15-18,9 years and males vs. females.
Time frame: baseline
Differences Proportion of Perfused Vessels (all) of sublingual microcirculation in different age and gender categories in children with T1D
Comparison in children aged 6-10,9; 11-14,9; and 15-18,9 years and males vs. females.
Time frame: baseline
Differences in Proportion of Perfused Small Vessels (PPSV) of sublingual microcirculation in different age and gender categories in children with T1D
Comparison in children aged 6-10,9; 11-14,9; and 15-18,9 years and males vs. females.
Time frame: baseline
Differences in Perfused Vessel Density (PVD) of sublingual microcirculation in different age and gender categories in children with T1D
Comparison in children aged 6-10,9; 11-14,9; and 15-18,9 years and males vs. females.
Time frame: baseline
Differences in Perfused Small Vessel Density (PSVD) of sublingual microcirculation in different age and gender categories in children with T1D
Comparison in children aged 6-10,9; 11-14,9; and 15-18,9 years and males vs. females.
Time frame: baseline
Differences in DeBacker Score of sublingual microcirculation in different age and gender categories in children with T1D
Comparison in children aged 6-10,9; 11-14,9; and 15-18,9 years and males vs. females. Higher number means better microcirculation.
Time frame: baseline
Correlation of Total Vascular Density of sublingual microcirculation with parameters of diabetic compenzation
Comparison of parametes in children with good and bad compenzation of T1D
Time frame: baseline
Correlation of Microvascular Flow Index (MFI) of sublingual microcirculation with parameters of diabetic compenzation
Comparison of parametes in children with good and bad compenzation of T1D
Time frame: baseline
Correlation of Small Vessel Density of sublingual microcirculation with parameters of diabetic compenzation
Comparison of parametes in children with good and bad compenzation of T1D
Time frame: baseline
Correlation of Proportion of Perfused Vessels (all) of sublingual microcirculation with parameters of diabetic compenzation
Comparison of parametes in children with good and bad compenzation of T1D
Time frame: baseline
Correlation of Proportion of Perfused Small Vessels (PPSV) of sublingual microcirculation with parameters of diabetic compenzation
Comparison of parametes in children with good and bad compenzation of T1D
Time frame: baseline
Correlation of Perfused Vessel Density (PVD) of sublingual microcirculation with parameters of diabetic compenzation
Comparison of parametes in children with good and bad compenzation of T1D
Time frame: baseline
Correlation of Perfused Small Vessel Density (PSVD) of sublingual microcirculation with parameters of diabetic compenzation
Comparison of parametes in children with good and bad compenzation of T1D
Time frame: baseline
Correlation of DeBacker Score of sublingual microcirculation with parameters of diabetic compenzation
Comparison of parametes in children with good and bad compenzation of T1D
Time frame: baseline
Differences of Total Vascular Density of sublingual microcirculation with parameters of healthy children in the same age categories
Total Vascular Density of sublingual microcirculation of healthy children has been obtained previously within study NCT05324228
Time frame: baseline
Differences of Microvascular Flow Index (MFI) of sublingual microcirculation with parameters of healthy children in the same age categories
Microvascular Flow Index (MFI) of sublingual microcirculation of healthy children has been obtained previously within study NCT05324228
Time frame: baseline
Differences of Small Vessel Density of sublingual microcirculation with parameters of healthy children in the same age categories
Small Vessel Density of sublingual microcirculation of healthy children has been obtained previously within study NCT05324228
Time frame: baseline
Differences of Proportion of Perfused Vessels (all) of sublingual microcirculation with parameters of healthy children in the same age categories
Proportion of Perfused Vessels (all) of sublingual microcirculation of healthy children has been obtained previously within study NCT05324228
Time frame: baseline
Differences of Proportion of Perfused Small Vessels (PPSV) of sublingual microcirculation with parameters of healthy children in the same age categories
Proportion of Perfused Small Vessels (PPSV) of sublingual microcirculation of healthy children has been obtained previously within study NCT05324228
Time frame: baseline
Differences of Perfused Vessel Density (PVD) of sublingual microcirculation with parameters of healthy children in the same age categories
Perfused Vessel Density (PVD) of sublingual microcirculation of healthy children has been obtained previously within study NCT05324228
Time frame: baseline
Differences of Perfused Small Vessel Density (PSVD) of sublingual microcirculation with parameters of healthy children in the same age categories
Perfused Small Vessel Density (PSVD) of sublingual microcirculation of healthy children has been obtained previously within study NCT05324228
Time frame: baseline
Differences of DeBacker Score of sublingual microcirculation with parameters of healthy children in the same age categories
DeBacker Score of sublingual microcirculation of healthy children has been obtained previously within study NCT05324228
Time frame: baseline