[Resting heart rate in subjects with carbohydrate disorders]. / Spoczynkowa czynnosc serca u osób z zaburzeniami gospodarki weglowodanowej.

UNLABELLED: Large epidemiological studies conducted during last 25 years confirmed the importance of resting heart rate as an independent risk factor for total and cardiovascular mortality in females and males, both in overall population and in subjects with cardiovascular diseases such as arterial hypertension, myocardial infarction, coronary heart disease, heart failure or left ventricular dysfunction. The aim of the study was to evaluate the resting heart rate (HR) in subjects with carbohydrate disorders. MATERIAL AND METHODS: The study comprised 112 subjects with carbohydrate disorders (54 females and 58 males), aged 30-78 (57.4 +/- 9.6) years. Carbohydrate disorders were diagnosed according to the Polish Diabetes Association criteria from 2007 (group I). 56 subjects had impaired fasting glucose (IFG), 36 - impaired glucose tolerance (IGT) and 20 - type 2 diabetes. Comparative group comprised 30 subjects without cardiovascular diseases and carbohydrate disorders (15 females and 15 males), aged 29-64 (52.7 +/- 8.8) years (group II). The fasting serum glucose level was evaluated using an enzymatic method, Kone Pro biochemical analyzer and bioMérieux Glucose RTU kit. In subjects with fasting glucose level > or = 100 mg/dl, an oral glucose tolerance test (OGTT) was performed. Additionally, in all subjects resting heart rate (HR) was measured, after 10-minute rest, at a room temperature of about 20 degrees C. The measurements were made threefold, every 5 minutes and mean value was assessed. RESULTS: In subjects with carbohydrate disorders HR was significantly higher than in comparative group (82.79 +/- 12.1 vs 69.9 +/- 9.56/min; p < 0.05). In group of subjects with carbohydrate disorders in comparison to comparative group, resting heart rate < 60/min occurred in 1.79 vs 13.33%, in intervals: 60-70/min in 14.29 vs 50%. 71-80/min in 33.93 vs 23.33%, 81-90/min in 25% vs 13.33%, and above 90/min in 25% of studied group (p < 0.05). On the basis of ROC curve analysis and odds ratio (OR) it was shown that HR > or = 72.5/min is an independent risk factor for carbohydrate disorders. CONCLUSIONS: Resting heart rate > or = 72.5/min is an independent risk factor for carbohydrate disorders and increases its risk more than ninefold.

[Estimation of pulse pressure in subjects with carbohydrate disorders]. / Ocena cisnienia tetna u osób z zaburzeniami gospodarki weglowodanowej.

UNLABELLED: Carbohydrate disorders are important and independent risk factor for cardiovascular system diseases. Increased values of pulse pressure are an independent risk factor for cardiovascular complications and total mortality. The aim of the study was to evaluate the pulse pressure in subjects with carbohydrate disorders. MATERIAL AND METHODS: The study comprised 112 subjects with carbohydrate disorders (54 females and 58 males), aged 30-78 (57.4 +/- 9.6) years. Carbohydrate disorders were diagnosed according to the Polish Diabetes Association criteria from 2007 (group 1). 56 subjects had impaired fasting glucose (IFG), 36--impaired glucose tolerance (IGT) and 20--type 2 diabetes. Comparative group comprised 30 subjects without cardiovascular diseases and carbohydrate disorders (15 females and 15 males), aged 29-64 (52.7,4 +/- 8.8) years (group II). The fasting serum glucose level was evaluated using an enzymatic method, Kone-Pro biochemical analyzer and bioMérieux Glucose RTU kit. In subjects with fasting glucose level > or = 100 mg/dl, an oral glucose tolerance test (OGTT) was performed. In all subjects 24-h ambulatory blood pressure monitoring with oscillometric method, using boso-TM-2430PL system (Bosch+Sohn, Germany). Pulse pressure (pp) was evaluated as a mean difference between the systolic and diastolic pressure. RESULTS: In subjects with carbohydrate disorders the mean value of pp was 56.79 +/- 16.28 mmHg and it was significantly higher (p < 0.05) than in comparative group (49.0 +/- 11.1 mmHg). Increased value of pp (> 63 mmHg) was found significantly more often in group with carbohydrate disorders (46% vs 10%) (p < 0.05). On the basis of ROC curve analysis and OR (odds ratio) it was shown that pp > or = 52.5 mmHg results in a threefold increased risk of carbohydrate disorders. CONCLUSIONS: Increased values of pulse pressure are found significantly more often in subjects with carbohydrate disorders. The risk of carbohydrate disorders increases threefold in subjects with pp > or = 52.5 mmHg.

[Exercise testing to estimate dysfunction of the autonomic nervous system in subjects with carbohydrate disorders]. / Test wysilkowy w ocenie dysfunkcji autonomicznego ukladu nerwowego u osób z zaburzeniami gospodarki weglowodanowej.

UNLABELLED: Slow heart rate recovery (HRR) 2 minutes after exercise testing is a predictor of cardiovascular mortality and index of decreased parasympathetic activity. The aim of the study was to evaluate the heart rate recovery in subjects with carbohydrate disorders. MATERIAL AND METHODS: The study comprised 112 subjects with carbohydrate disorders (54 females and 58 males), aged 30-78 (57.4 +/- 9.6) years. Carbohydrate disorders were diagnosed according to the Polish Diabetes Association criteria from 2007 (group I). 56 subjects had impaired fasting glucose (IFG), 36 - impaired glucose tolerance (IGT) and 20 - type 2 diabetes. Comparative group comprised 30 subjects without cardiovascular diseases and carbohydrate disorders (15 females and 15 males), aged 29-64 (52.70 +/- 8.8) years (group II). The fasting serum glucose level was evaluated using an enzymatic method, Kone-Pro biochemical analyzer and bioMérieux Glucose RTU kit. In subjects with fasting glucose level > or = 100 mg/dl, an oral glucose tolerance test (OGTT) was performed. In all subjects submaximal exercise treadmill testing was performed. Heart rate recovery was defined as a difference between the peak heart rate and that after 2 minutes of recovery in sitting position. RESULTS: In subjects with carbohydrate disorders the mean value of HRR was 38.93 +/- 12.08/min and it was significantly lower (p < 0.05) than in comparative group (57.0 +/- 11.44/min). In subjects with carbohydrate disorders negative correlation between HRR and patients' age as well as between HRR and fasting glucose level in males. On the basis of ROC curve analysis and OR (odds ratio) it was shown that HRR < or = 43.5/min results in almost threefold increased risk of carbohydrate disorders. CONCLUSIONS: In subjects with carbohydrate disorders the value of HRR is lowered, what stands for decreased parasympathetic activity and increased cardiovascular risk. HRR < or = 43.5/min results in almost threefold increased risk of carbohydrate disorders.