Labetalol hydrochloride's beta 1 -receptor blockade in man was demonstrated by a small decrease in the resting heart rate, attenuation of tachycardia produced by isoproterenol or exercise, and by attenuation of the reflex tachycardia to the hypotension produced by amyl nitrite. (nih.gov)
Avoiding systemic hypotension, maintaining sinus rhythm, and avoiding excessive tachycardia are therefore the cornerstones of resuscitation. (emra.org)
Bradycardia1
Phenylephrine also may result in a reflexbradycardia - a favorable pharmacodynamic property for its use in aortic stenosis. (emra.org)
Supraventricular tachycardia1
A narrow complex tachycardia with an accessory conduction pathway, often termed "supraventricular tachycardia with pre-excitation" (e.g. (wikipedia.org)
Reflex syncope may manifest as orthostatic vasovagal reflex, situational syncope, or carotid sinus hypersensitivity, which becomes a clinical syndrome when associated with history of unexplained syncope and positive provocation test, carotid sinus massage. (lu.se)
Neurocardiogenic, or reflex, syncope happens when a temporary problem arises with the autonomous nervous system (ANS). (medicalnewstoday.com)
Reflex cardiac stimulation can precipitate angina in patients with coronary artery disease. (cvpharmacology.com)
Diuretic1
They are used with a beta-blocker and diuretic to attenuate the reflex tachycardia and retention of sodium and fluid, respectively. (cvpharmacology.com)
Avoid epinephrine as a first line agent given its strong beta-1 agonism and propensity to promote tachycardia and increase myocardial oxygen demand. (emra.org)
Peripheral1
Diltiazem has a direct negative chronotropic effect on the heart sufficient to block reflex-mediated tachycardia secondary to the decrease in peripheral resistance. (pharmacology2000.com)
Common side effects to minoxidil include headaches, flushing and reflex tachycardia. (cvpharmacology.com)
Stimuli1
The hypothesis further suggests that classically conditioned reflex responses to neutral cues and contexts that were present at the same time as the stimuli that initially caused symptoms, become of themselves ongoing triggers of recurrent wheeze. (bmj.com)
Autonomic2
This review explores how abnormal triggering of the autonomic diving reflex might be important in explaining research findings and the real-world experience of asthma. (bmj.com)
This paper explores the possibility that asthma might occur because of antenatally determined changes in autonomic development resulting in increased triggering of the parasympathetic components of the diving reflex and its subsequent triggering by classically conditioned reflex responses. (bmj.com)
Airway reflexes, spontaneous ventilation, and cardiovascular function are maintained. (medscape.com)
The patient may not be able to maintain airway reflexes or spontaneous ventilation, but cardiovascular function is preserved. (medscape.com)
This results in increased parasympathetic responsiveness and specifically, excessive triggering of the diving reflex in response to wetting and cooling of the face and nose as occurs with upper airway infections and allergic rhinitis. (bmj.com)
In aquatic mammals the reflex importantly includes the contraction of airway smooth muscle to minimise lung volume and prevent nitrogen narcosis from diving at depth. (bmj.com)
Misfiring of this reflex in humans could result in the pathological airway narrowing that occurs in asthma. (bmj.com)
Dizziness1
POTS is rarely seen in older adults and presents as abnormal sinus tachycardia on standing with symptoms of orthostatic intolerance, dizziness, fatigue, and cognitive impairment. (lu.se)
Excessive1
8 Excessive tachycardia not only promotes ischemia, but also reduces time spent in diastole for left ventricular filling. (emra.org)
Severe1
Fever, hyperventilation, diarrhea and severe infections can also cause tachycardia, primarily due to increase in metabolic demands. (wikipedia.org)
Produces2
Labetalol hydrochloride produces dose-related falls in blood pressure without reflex tachycardia and without significant reduction in heart rate, presumably through a mixture of its alpha blocking and beta-blocking effects. (nih.gov)
citation needed] Upon exertion, sinus tachycardia can also be seen in some inborn errors of metabolism that result in metabolic myopathies, such as McArdle's disease (GSD-V). Metabolic myopathies interfere with the muscle's ability to create energy. (wikipedia.org)
Interventions to suppress the diving reflex and to prevent reflex conditioned wheezing could result in more effective asthma management. (bmj.com)