bradycardia/obésité

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Sudden bradycardia and asystole in an obese patient after spinal anaesthesia: successful resuscitation with inadvertent "pacing thumps.".

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A 45-year old morbidly obese man with diabetes and severe chest problem had sudden bradycardia and sinus arrest in the Recovery Ward after an uneventful spinal anaesthesia. He responded promptly to "attempts" at external cardiac message with each thump producing a QTS complex until Atropine could be

Conscious obese rats have impaired reflex bradycardia and enhanced norepinephrine sensitivity.

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Male Sprague-Dawley rats fed a condensed milk diet were classified as either "obesity susceptible" (OS) or "obesity resistant" (OR) based on body weight increases attained after 12 wk. Overall caloric intake in OS rats was higher than in chow-fed controls, and OS rats were heavier than chow-fed

Atropine sulfate for treatment of bradycardia in a patient with morbid obesity: what may happen when you least expect it.

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A 74-year-old morbidly obese man was scheduled for surgical repair of an incisional ventral hernia. Anaesthesia was induced with propofol and fentanyl, and maintained with desflurane. A second dose of fentanyl 0.2 mg, given before starting surgery, resulted in sinus bradycardia and mild decrease of

Severe maternal bradycardia and asystole after combined spinal-epidural labor analgesia in a morbidly obese parturient.

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Serious maternal bradycardia and asystole in laboring parturients after combined spinal-epidural labor analgesia are rare. We report such a case in a morbidly obese laboring parturient after receiving combined spinal-epidural labor analgesia. The differential diagnosis, risk factors, potential

Dizziness and near syncope due to sinus bradycardia and sinoatrial block associated with obesity and daytime tiredness. A clear indication for pacemaker implantation?

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BACKGROUND The symptomatic sick sinus syndrome presents a classic indication for the implantation of a dual-chamber pacemaker according to the current national and international guidelines. However, in cases where dizziness and near syncope due to a sinus node dysfunction are found together with

Continuous positive airway pressure therapy restores bradyarrhythmia with 10-second asystole in hypertensive obese patient with obstructive sleep apnea

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Relations among hypoxemia, sleep stage, and bradyarrhythmia during obstructive sleep apnea.

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BACKGROUND Obesity, apneic hypoxemia, and rapid eye movement (REM) sleep are supposed to be the major causes for bradyarrhythmia in patients with obstructive sleep apnea. The aims of this study were to compare clinical findings and diagnoses in patients with obstructive sleep apnea with and without

Extreme bradycardia during sleep apnea caused by myxedema.

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A 52-year-old man with myxedema was evaluated for anterior chest pain that was considered to be compatible with myocardial ischemia. The night after admission he developed extreme bradycardia, hypotension, and apneic episodes lasting up to 25 s. Continuous positive airway pressure and administration

Treatment of tachycardia: bradycardia syndrome in a patient with obstructive sleep apnoea.

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Obstructive sleep apnoea (OSAS) affects 4% of men and 2% of women aged 30-65 years. It is diagnosed in the presence of excessive daytime sleepiness and an apnoea-hypopnoea index (AHI) of ≥5 on polysomnography. Rhythm disturbances are common in OSAS and continuous positive airway pressure (CPAP) has

Uneven blunting of chronotropic baroreflexes in obese Zucker rats.

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We compared reflex chronotropic responses to intravenously infused drugs in three groups of age-matched normotensive female rats, namely, Sprague-Dawley, lean Zucker, and obese Zucker. Initial mean pressures did not differ between rat groups, but heart rates tended to be lower in obese Zucker rats.

Influence of acute sleep deprivation on cardiovascular parameters in female Zucker obese and lean rats.

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OBJECTIVE There is a reciprocal relationship between sleep duration and weight gain. However, the consequences of this relationship on the cardiovascular system over an entire life span are still not fully elucidated. We examined the effect of acute sleep deprivation (SD) on baroreflex sensitivity

Baroreceptor reflex impairment and mild hypertension in rats with dietary-induced obesity.

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Cardiovascular dysfunction associated with obesity was assessed by comparing rats that had been maintained on a regular or high fat diet since weaning. Rats on the high fat diet not only gained weight faster than age-matched controls but also had higher systolic and mean pressures. Development of

Development of attenuated baroreflexes in obese Zucker rats coincides with impaired activation of nucleus tractus solitarius.

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Adult obese Zucker rats (OZR; >12 wk) develop elevated sympathetic nerve activity (SNA) and mean arterial pressure (MAP) with impaired baroreflexes compared with adult lean Zucker rats (LZR) and juvenile OZR (6-7 wk). In adult OZR, baroreceptor afferent nerves respond normally to changes in MAP,

Exercise training prevents obesity-associated disorders: Role of miRNA-208a and MED13.

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Exercise training (ET) has been established as an important treatment for obesity, since it counteracts aberrant cardiac metabolism and weight gain; however, underlying mechanisms remain to be further determined. MicroRNAs (miRNAs) inhibit protein expression by base-pairing with the 3' UTRs of mRNA

Plasma catecholamines and autonomic responsiveness in obesity.

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The autonomic responsiveness of lean women to standing, passsive vertical tilting, noradrenaline infusion and the valsalva manoeuvre has been compared with that of obese women and a group of formerly obese women (post-obese). Upon standing, the lean and obese groups had comparable cardiovascular

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