scholarly journals Non-invasive assessment of microcirculation in patients with late-stage complications of diabetes mellitus type 2

2015 ◽  
Vol 14 (4) ◽  
pp. 28-33
Author(s):  
P. V. Vasiliev ◽  
A. N. Shishkin ◽  
N. P. Erofeev ◽  
N. A. Bubnova ◽  
I. Y. Pchelin

The aim of our study was to assess of microcirculation using laser Doppler flowmetry (LDF) in patients with diabetic foot syndrome (DFS) caused by diabetes mellitus type 2. Materials and methods. The main group consisted of 16 patients with DFS. In the control group, 19 patients without diabetes mellitus were included. An LDF investigation was performed using Biopac LDF 100C system. Estimated glomerular filtration rate (eGFR) was determined using CKD-EPI formula. Results and discussion. According to LDF, patients with DFS had the severe form of microcirculatory failure, with abrupt worsening of venous drainage, caused by venous lesion during the diabetic microangiopathy. The marker LDF phenomena were decreasing of flaxmotion index, low- and high-frequency flaxmotions contribution and increasing of high-frequency flaxmotion contribution. During the eGFR decreasing in the main group a simultaneous decreasing of low-frequency flaxmotion contribution and flaxmotion index, also with increasing of high-frequency flaxmotions contribution and intravascular resistance shows to stazic form of microcirculatory disorder. Exposed correlations of LDF-indexes with eGFR can show that LDF has potential possibilities for diagnostics and progression assessment of microangiopathic changes. Summary. In patients with diabetes mellitus type 2, a progressive microcirculation failure takes place. With the development of the microangiopathy, a negative influence of venous stasis prevails over the ischemic events. The development of chronic kidney disease is an independent risk-factor of microangiopathic complications of diabetes mellitus type 2. Preclinical diagnostics of renal lesion is important for timely beginning of the protective therapy of severe microvascular complications.

Author(s):  
I.O. KOZLOV

The article is devoted to the development of laser Doppler flowmetry and analysis of the recorded signal to study the distribution of perfusion over the frequencies of Doppler broadening of laser radiation. The processing algorithm and the necessary technical conditions for the correct registration of the signal are shown. As examples of the proposed method implementation, the data are obtained from a healthy volunteer and a patient with diabetes mellitus type 2 and analyzed. According to the proposed method, processing of recorded data provides a new feature space for data analysis of laser Doppler flowmetry signal.


Author(s):  
R. Siddarama ◽  
G. Thrinath ◽  
J. Bhagyasree ◽  
S. Afshaan Anjum ◽  
R. Anjanamma

Background: The aim of this study is to observe the prevalence of complications of diabetes mellitus (Type 2) among patients and to minimize their occurrence through patient education. The study helps to assess the clinical data of patients with diabetes mellitus (Type 2) along with the analysis of patterns, frequencies and predictive factors of microvascular, macrovascular complications and to educate and minimize the complications of diabetes mellitus among patients.Methods: Prospective and observational study was conducted among the type 2 diabetes mellitus patients at Sree Diabetes Clinic for a period of 6 months. The patients were interviewed using the patient data collection form which included demographic details, chief complaints and different diagnostic tools to detect type of complications. Both micro and macrovascular complications were evaluated.Results: A total of 150 type 2 diabetic cases were collected. Out of these 38(25.33%) patients were having BMI <25, and 112(74.67%) were having BMI ≥25 (overweight and obese). Out of 150 diabetic cases collected, a total of 131 diabetic complications were found. Out of these, 64(42.6%) were neuropathy, 3(2%) were nephropathy, 20(13.3%) were retinopathy and 17(11.3%) were having cardiovascular complications. Out of 112 patients with BMI ≥25, 60(54%) were found to have diabetic complications and out of 38 patients with BMI <25, 18(47%) were found to have diabetic complications. 90 out of 150 patients had a history of hypertension and 17 out of 150 patients had an abnormal lipid level.Conclusions: In this study, author found that obesity is a major risk factor for the development of diabetes mellitus and its complications.


2014 ◽  
Vol 35 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Pavel Kotlarsky ◽  
Arkady Bolotin ◽  
Karina Dorfman ◽  
Boris Knyazer ◽  
Tova Lifshitz ◽  
...  

2016 ◽  
Vol 15 (3) ◽  
pp. 36-43
Author(s):  
I. S. Iskhakova ◽  
L. A. Ruyatkina ◽  
K. Y. Nikolaev ◽  
D. S. Ruyatkin

The aim of the study. Estimate microcirculatory parameters of myogenic range in postmenopausal women with normoglycemia, prediabetes and diabetes mellitus type 2. Material and methods. Among the surveyed 94 women (58.0 (53.0; 63.0) years old), in the natural menopause (duration 7.0 (2.0; 13.0) years), depending on the status of carbohydrate metabolism (WHO, 2011) by measuring the levels of glycated hemoglobin, we identified three groups: group 1 (n = 52) - with diabetes mellitus 2 type, 2 (n = 16) - with prediabetes, 3 (n = 26) - with normoglycaemia. We evaluated anthropometric and biochemical parameters; microcirculation was assessed by laser Doppler flowmetry. Statistical analysis was performed using the SPSS software (version 17.0). The level of statistical significance of differences was at p ≤ 0.05. Results. Women with impaired glucose metabolism (group 1 and 2) with increased abdominal fat deposition have the elevated basal vasospasm and impaired microvascular reactivity due to increased myogenic tone. We found that group 1 has negative association of LDF parameters of myogenic range with blood pressure and duration of hypertension. We identified that increasing concentrations of atherogenic lipids contribute to basal and postocclusive vasodilation independently of the state of glucose metabolism. Conclusion. Identified associations and differences in the LDF parameters of myogenic range at the basal and reperfusion microcirculation reflect the increase of vasospasm and microcirculatory disturbances during progression of carbohydrate metabolism disorders in postmenopausal women.


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