Hemodynamics assessed via approximate entropy analysis of impedance cardiography time series: effect of metabolic syndrome

2011 ◽  
Vol 301 (2) ◽  
pp. H592-H598 ◽  
Author(s):  
Stefania Guerra ◽  
Federico Boscari ◽  
Angelo Avogaro ◽  
Barbara Di Camillo ◽  
Giovanni Sparacino ◽  
...  

The metabolic syndrome (MS), a predisposing condition for cardiovascular disease, presents disturbances in hemodynamics; impedance cardiography (ICG) can assess these alterations. In subjects with MS, the morphology of the pulses present in the ICG time series is more irregular/complex than in normal subjects. Therefore, the aim of the present study was to quantitatively assess the complexity of ICG times series in 53 patients, with or without MS, through a nonlinear analysis algorithm, the approximate entropy, a method employed in recent years for the study of several biological signals, which provides a scalar index, ApEn. We correlated ApEn computed from ICG times series data during fasting and postprandial phase with the presence of alterations in the parameters defining MS [Adult Treatment Panel (ATP) III (Grundy SM, Brewer HB Jr, Cleeman JI, Smith SC Jr, Lenfant C; National Heart, Lung, and Blood Institute; American Heart Association. Circulation 109: 433–438, 2004) and the International Diabetes Federation (IDF) definition]. Results show that ApEn was significantly higher in subjects with MS compared with those without (1.81 ± 0.09 vs. 1.65 ± 0.13; means ± SD; P = 0.0013, with ATP III definition; 1.82 ± 0.09 vs. 1.67 ± 0.12; P = 0.00006, with the IDF definition). We also demonstrated that ApEn increase parallels the number of components of MS. ApEn was then correlated to each MS component: mean ApEn values of subjects belonging to the first and fourth quartiles of the distribution of MS parameters were statistically different for all parameters but HDL cholesterol. No difference was observed between ApEn values evaluated in fasting and postprandial states. In conclusion, we identified that MS is characterized by an increased complexity of ICG signals: this may have a prognostic relevance in subjects with this condition.

Angiology ◽  
2011 ◽  
Vol 63 (1) ◽  
pp. 39-47 ◽  
Author(s):  
Eirini Lioudaki ◽  
George E. Vrentzos ◽  
Helen Mavrogeni ◽  
Maria-Helen Zeniodi ◽  
Emmanuel S. Ganotakis ◽  
...  

Aims: The metabolic syndrome (MetS) is associated with increased risk of cardiovascular disease (CVD) and diabetes mellitus (DM). Several definitions of MetS have been proposed. The aim of the present study was to estimate and compare the prevalence of MetS according to the National Cholesterol Education Program Adult Treatment Panel III (NCEP ATP III), American Heart Association-National Heart Lung and Blood Institute (AHA-NHLBI), International Diabetes Federation (IDF) and the more recent Joint Interim Statement (JIS) definitions in patients attending a hypertension clinic. Methods: The records of patients referred to the hypertension clinic at the University Hospital (Heraklion, Crete) from January 2001 to June 2009 were screened retrospectively. A total 384 patients (146 men) were included in the study. Results: The prevalence of MetS according to the IDF and JIS definitions was significantly higher compared with that of the NCEP ATP III in both genders (IDF: P = .009 and P = .002, JIS: P = .002 and P = 0.001 for men and women, respectively); this was the case for the AHA-NHLBI definition only among women ( P = .03). All MetS components differed significantly ( P from < .0001 to .02) between patients with and without MetS for all definitions. Conclusions: The prevalence of MetS varies considerably depending on the definition used in a hypertensive population in a Mediterranean country. These differences will influence risk assessment.


2017 ◽  
Vol 7 (2) ◽  
pp. 100-104
Author(s):  
M. Rożniata ◽  
K. Zujko ◽  
M.E. Zujko

The term metabolic syndrome (MetS) defines the cooccurrence of the related risk factors of metabolic origin that promote the development of cardiovascular diseases with atherosclerotic background and type 2 diabetes. The diagnostic criteria of MetS have undergone modifications for years. Until now no clear definition of MetS has been established. The latest diagnostic criteria of MetS published in 2009 by a group of IDF (International Diabetes Federation) and AHA/NHLBI (American Heart Association/ National Heart, Lung and Blood Institute) experts discern three out of five risk factors: abdominal obesity (taking into consideration population differences), elevated level of triglycerides, reduced HDL cholesterol, hypertension and fasting hyperglycemia. Genetic predispositions and environmental factors, such as lack of physical activity and improper diet are considered to be responsible for MetS development. Therefore, prevention and treatment of MetS should be based first of all on a change in modifiable lifestyle factors, among which proper diet is of essential importance.


2011 ◽  
Vol 68 (6) ◽  
pp. 500-505
Author(s):  
Ivana Vorgucin ◽  
Jovan Vlaski ◽  
Nada Naumovic ◽  
Dragan Katanic

Background/Aim. Metabolic syndrome is a clinical term which encompasses obesity, insulin resistance, dyslipidemia, hypertension, as well as an increased risk of the development of diabetes mellitus type 2 and cardiovascular disorders in early adulthood. The prevalence of metabolic syndrome is increasing and directly related to the obesity rate among children. The aim of the research was to compare the established definition of the criteria for diagnosing metabolic syndrome in a sample group consisting of overweight and obese children in Vojvodina. Methods. The research was performed as a cross study analysis of 206 examinees. In terms of the sample group (25% children and 75% adolescents), 74% were obese and 26% overweight according to the body mass index (BMI). Two sets of criteria for diagnosing metabolic syndrome were applied in the sample of adolescents: the criteria for adults, specifically adapted for children, and the criteria defined by the International Diabetes Federation (IDF) for children and adolescents. The research included the analysis of the following criteria: BMI, waist circumference, blood pressure, triglycerides, HDL cholesterol, glycemia and insulinemia during the oral glucose tolerance test (OGTT). Results. By applying the specific criteria for diagnosing the metabolic syndrome in children and adolescents on the whole sample, it was established that the metabolic syndrome was present in 41% of the examinees, while the application of the criteria defined by the IDF confirmed the diagnosis in 22% of the examinees. An analysis of the metabolic syndrome risk factors established that among the defined specific criteria the most frequent factors present were elevated BMI and the pathological results of the OGTT, while the least frequent was low HDL cholesterol. Among the criteria listed by the IDF, the most frequent metabolic syndrome factors were waist circumference and increased blood pressure, while the least frequent was elevated fasting glucose. Conclusion. Metabolic syndrome in overweight and obese children in Vojvodina was diagnosed much more often when the specific criteria for children and adolescents were applied than it was the case when the criteria defined by the International Diabetes Federation were applied.


2017 ◽  
Vol 64 (4) ◽  
pp. 300-304
Author(s):  
Ana Maria Alexandra Stănescu ◽  
◽  
Ioana Veronica Grăjdeanu ◽  
Gabriel Cristian Bejan ◽  
Mihaela Adela Iancu ◽  
...  

Aims. The rising global trend of metabolic syndrome cases has increased the problems associated with decreasing serum vitamin D levels and the likelihood of cutaneous involvement. This research was aimed at determining the prevalence of metabolic syndrome, the distribution of its components and correlation the between serum vitamin D levels and possible skin involvement in the patients. Materials and methods. The study of Romanian citizens was conducted between 2010 and 2017, involved mainly urban dwellers with a median age of 18. The parameters measured included physical examination and fasting blood tests. The criteria of the International Diabetes Federation (IDF) was used for the metabolic syndrome diagnosis. The serum 25 (OH) D levels were based on the laboratory reference values and the severity of psoriasis was calculated according to the BSA score. Results. The total number of participants in the study was 634, of which 36% were diagnosed with metabolic syndrome, with a 59% prevalence of females. The distribution of the components of the metabolic syndrome was: 100% increased waist circumference (mandatory component for diagnosis), hyperglycaemia 53.7%, low HDL cholesterol 44.9%, triglyceride increase 26.4%, high blood pressure 21.6%. Low serum vitamin D levels were found at 54.6%. Psoriasis showed 46.2% of all those with metabolic syndrome. Conclusion. After thorough analysis of the data, it can be concluded that there is a relationship between the presence of metabolic syndrome and serum vitamin D, the latter being mostly low in the studied group. The more the components of metabolic syndrome are present, the lower the vitamin D serum level. The presence of psoriasis can aggravate metabolic syndrome components and vitamin D serum decline. Further studies can determine whether serum vitamin D normalization can bring improvements in metabolic syndrome components.


2019 ◽  
Vol 13 (2) ◽  
pp. 145
Author(s):  
Lailiyah Yusna Yusfita

Sedentary lifestyle has been done by many workers either in the workplace, home, even on transportation. High sedentary lifestyle is a risk factor for metabolic syndrome among workers that cause of metabolic diseases such as Coronary Heart Disease, diabetes mellitus type 2, and Stroke. According to the International Diabetes Federation (IDF) in 2005, the metabolic syndrome is characterized by abdominal obesity plus at least 2 other positive components consisting of hypertriglycerides, low HDL cholesterol, hypertension, and hyperglycemia. This study is a cross sectional study to determine relationship of sedentary lifestyle with metabolic syndrome. 66 workers of 113 workers who performed Medical Check Up (MCU) at Prima Medika Laboratory Surabaya during November - December 2017 became a sample of this study. Sampling method was simple random sampling. The independent variables in this study were age, sex, and sedentary lifestyle. The dependent variable was metabolic syndrome. This study used Chi-square analysis to assess the relationship between independent variable and dependent variable. The results showed the prevalence of metabolic syndrome among workers was 43.9%. Of the 29 workers with metabolic syndrome, 26 workers had a sedentary lifestyle ≥ 6 hours per day with a median was 9.11 hours per day. There was a correlation between sedentary lifestyle ≥ 6 hours per day with metabolic syndrome (p = 0.000), whereas showed no association with metabolic syndrome between age (p = 0.058) and sex (p = 0.168). The conclusions of this study were sedentary ≥ 6 hours per day associated with metabolic syndrome among workers. Workers should reduce sedentary lifestyle by stretching, avoiding sitting too long while working, and increasing physical activity in the workplace.


2019 ◽  
Vol 7 (1) ◽  
pp. 161
Author(s):  
Gaurav Jain ◽  
Balaji D. More

Background: Several components of the Metabolic Syndrome (MetS) are risk factor for cardiovascular diseases. So, this study was conducted to evaluate the prevalence of MetS and its components in patients with CAD.Methods: Author included all patients admitted with Acute Coronary Syndrome (ACS), who had CAD confirmed by coronary angiography. They were divided into two groups according to presence or absence of MetS based on International Diabetes Federation criteria. The prevalence of MetS and its individual components was estimated.Results: It was observed that there is a high prevalence of MetS (66%) in patients admitted with ACS. Metabolic syndrome is more prevalent in female patients (82.4%) than in male patients (57.6%) with ACS. Hypertension is the most prevalent (87.9) component of MetS. Diabetes Mellitus (DM) is the 2nd most prevalent (83.3%) component of MetS. About 65.2% patients with MetS had abnormally raised triglyceride levels and 32(48.5%) had abnormally low HDL-cholesterol level.  Among the MetS 38(57.6%) had abnormal waist circumference.  Among the study group, the most common triad of MetS components was DM + HTN + abnormal TG. There is significant association between MetS and microalbuminuria, with incidence of 22(33.3%) in this study. Similarly, a significant association between DM and microalbuminuria, 23(33.8%) was observed.Conclusions: This study confirms a very high prevalence of MetS in Indian patients with CAD. The prevalence of the risk factors was higher in CAD patients with MetS.


2009 ◽  
Vol 24 (S1) ◽  
pp. 1-1
Author(s):  
J.R. Azanza ◽  
M. Bernardo ◽  
L. Rojo ◽  
J. Rejas-Gutiérrez ◽  
F. Mesa

Aims:The metabolic syndrome MS (visceral obesity, dyslipidaemia, hyperglycaemia, and hypertension), has become one of the major public-health challenges worldwide. Patients with schizophrenia are more likely to suffer from MS that the general population. We have analyzed the prevalence of MS in Spanish patients with schizophrenia and overweight.Methods:The CRESSOB study is a 12-month, prospective, naturalistic study including 110 community mental health clinics selected at random. Each site enrolled four consecutive patients with diagnosis of schizophrenia, according to DSM-IV TR criteria, and overweight (BMI > 25 Kg/m2). to assess the prevalence of MS we have analyzed the baseline results of the CRESSOB study. the National Cholesterol Educational Program (NCEP-ATPIII), the International Diabetes Federation (IDF) and the American Heart Association/National Heart, Lung, and Blood Institute (AHA/NHLBI) definitions were used to established the presence of MS.Results:A total of 391 patients were enrolled on the study (mean age 40.5 years, 63.8% men). 75.9% of the patients did not meet criteria for remission, using the selected PANSS items. Mean GAF score was 52.7 (SD 15.4). Using the different criteria, 59.0% of males and 58.3% of females fulfilled the NCEP-ATPIII criteria, 71.1% of males and 65.8% of females fulfilled the IDF criteria and 70.1% of males and 65.1% of females fulfilled the AHA/NHLBI criteria.Conclusions:The MS is highly prevalent in Spanish patients with schizophrenia and overweight. Given the metabolic syndrome is an important risk factor for cardiovascular disease, these patients should receive appropriate clinical monitoring for this syndrome.


2013 ◽  
Vol 110 (9) ◽  
pp. 1722-1731 ◽  
Author(s):  
María T. Barrio-Lopez ◽  
Miguel A. Martinez-Gonzalez ◽  
Alejandro Fernandez-Montero ◽  
Juan J. Beunza ◽  
Itziar Zazpe ◽  
...  

The incidence of the metabolic syndrome (MetS) is increasing and lifestyle behaviours may play a role. The aim of the present study was to prospectively assess the association between changes in the consumption of sugar-sweetened beverages (SSB) and the incidence of the MetS and its components in a Spanish cohort of university graduates. We included 8157 participants initially free of the MetS and followed up during at least 6 years. SSB consumption was collected by a FFQ previously validated in Spain. The change in SSB consumption was calculated as the difference between SSB consumption at a 6-year follow-up and baseline consumption. The MetS was defined according to the International Diabetes Federation and the American Heart Association/National Heart, Lung, and Blood Institute's new definition of the MetS that had harmonised previous definitions. The associations between changes in SSB intake and the MetS were examined using multiple logistic regression. We observed 361 incident cases of the MetS. Participants who increased their consumption of SSB (upper v. lower quintile) had a significantly higher risk of developing the MetS (adjusted OR 2·2, 95 % CI 1·4, 3·5; P for trend = 0·003). Similarly, they presented a significantly higher risk of developing high blood pressure (adjusted OR 1·6, 95 % CI 1·3, 2·1), central obesity (adjusted OR 2·3, 95 % CI 1·9, 2·7), hypertriacylglycerolaemia (adjusted OR 1·7, 95 % CI 1·1, 2·6) or impaired fasting glucose (adjusted OR 1·6, 95 % CI 1·1, 2·2). In conclusion, an increase in SSB consumption was associated with a higher risk of developing the MetS and other metabolic disorders after 6 years of follow-up in a Mediterranean cohort of university graduates.


Author(s):  
Noora Wael Rasheed ◽  
Ooroba Jameel Taresh

       Some studies indicated a relationship between increased serum levels of osteoprotegerin with arterial calcification and as a result, it leads to the risk of cardiovascular disease. In our study group we selected patients with osteoporosis, with similar age and body mass index for the assessment of the relationship between cardiovascular disease and osteoprotegerin serum level. We took into account the analysis of correlation and association between the presence of distinct patterns of atherosclerosis and associated diseases like high blood pressure,  diabetes mellitus, low HDL cholesterol, increased LDL cholesterol, increased triglycerides and was the case of presence of any type of dyslipidemia, in case of pre-existent treatment. Objective of study was the assessment of osteoprotegerin value as predictive marker for cardiovascular and metabolic risk in osteoporotic patients. Our results showed significant correlations of parathyroid hormone, osteocalcin and biochemical markers of bone with glucose metabolism and lipid were found in our research, maintaining crosstalk between calcium and biochemical markers of bone and cardiovascular risk. The serum level of Osteoprotegerin has been shown to have a large predictive value for the metabolic syndrome as a cardiovascular risk standard in patients with osteoporosis. The osteoprotegerin serum levels were increased in the patients with metabolic syndrome as a protective response facing the atherosclerotic lesions.


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