Abstract
The aim of this study was to determine the effects of chronic fluorosis on the electrocardiogram (ECG) in dogs. A total of sixteen mixed breed dogs (8 fluorotic and 8 healthy), 2 to 3 years old and weighing 18–30 kg, were used in this study. The eight dogs with chronic fluorosis were obtained from the Tendurek Mountain region (altitude about 2000 m) in Eastern Anatolia. All ECG waves were observed in all of the leads. Sinus bradycardia was seen in dogs with chronic fluorosis. Prolonged P-Q interval (P<0.05) was present. The duration and amplitude of T wave was higher and longer (P<0.05) in the fluorosis group. As a result, the number of heart beats/minute was decreased significantly (p< 0.05) from 120.4±15 in the control group to 80.7±14 in dogs with fluorosis. The average electrical axis of the heart changes were between +60º and +100º in both groups. The average electrical axis was +80º in the control group and +75º in the fluorotic dogs.
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Changes of the heart muscle due to chronic fluorosis. Part 1: Electrocardiogram and cardiac x-rays in inhabitants of a high fluoride zone
1) The author examined inhabitants of a high fluoride zone (Shionoe village, Kagawa Prefecture, and Odani villAge, Sanyo town, Okayama Prefecture). ln residents of these zones , greater myocardial damage was detected electrocardiographically and dilatation of the cardiac sillouette roentgenograpbically than in n0n-fluoride areas. 2) The myocardial damage appears to
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Impact of chronic fluorosis on left ventricular diastolic and global functions.
Sixty three patients with endemic fluorosis (36 males/27 females; mean age 33.9+/-8.6years) and 45 age, sex and body mass index (BMI) matched healthy controls (30 males/15 females; mean age 32.7+/-8.8years) were included in this study. Basic echocardiographic measurements, left ventricular diastolic parameters and left ventricular myocardial performance index (MPI) were
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Analyses of ECGs in 271 cases with dental fluorosis
Our team performed investigations in Yuqing Village and Guanfang Village (1) which were seriously affected by endemic fluorosis, from September to October 1985; those two villages are only 1,500 meters distant from Mangbu District of Zhenxiong County, and the life and production conditions in these two villages are similar to
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Electrocardiographic evaluation in patients with endemic fluorosis without clinically evident heart disease
Objective: This study was carried out to analyse the electrocardiogram (ECG) in patients with endemic fluorosis. Methods: Fifty six patients with endemic fluorosis and 44 age, sex and body mass index (BMI) matched healthy controls with normal fluoride intake underwent standart 12-lead ECG, urine fluoride level and serum sodium, potassium,
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Effects of sodium fluoride on the electrocardiogram of male rabbits
Effects of fluoride (F) on electrocardiogram (ECG) values were determined in ten healthy adult male New Zealand white rabbits. After the initial ECG values were measured, the rabbits were administered 20 mg NaF/kg body weight by oral intubation for two months, and the new ECG values were determined. There was
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