Shortening baroreflex delay in hypertrophic cardiomyopathy patients - an unknown effect of β-blockers
نویسندگان
چکیده
منابع مشابه
Reduced cardiopulmonary baroreflex sensitivity in patients with hypertrophic cardiomyopathy.
OBJECTIVES We sought to assess baroreflex function in patients with hypertrophic cardiomyopathy (HCM). BACKGROUND We have previously demonstrated a specific abnormality in the afferent limb of the cardiopulmonary baroreflex in patients with vasovagal syncope. Patients with HCM exhibit abnormal control of their vasculature during exercise and upright tilt; we therefore hypothesize a similar ab...
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Introduction: Accurate delineation of myocardial fibrosis in Late Gadolinium Enhancement on Cardiac Magnetic Resonance (LGE-CMR) has a crucial role in the assessment and risk stratification of HCM patients. As this is time-consuming and requires expertise, automation can be essential in accelerating this process. This study aims to use Unet-based deep learning methods to automate the mentioned ...
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We present the case of a 64-year-old male who presented to the emergency room because of recent onset palpitations. He was diagnosed with a first episode of atrial fibrillation and was managed at the emergency room by direct current cardioversion. The patient’s past medical record was unremarkable, and no relevant findings were discovered during the physical examination or laboratory tests. The...
متن کاملEffect on obstruction on longitudinal left ventricular shortening in hypertrophic cardiomyopathy.
OBJECTIVES We investigated the cause of the midsystolic drop (MSD) in left ventricular (LV) ejection velocities that are observed with hypertrophic cardiomyopathy (HCM) and severe obstruction. BACKGROUND Dynamic obstruction is an important determinant of symptoms and adverse outcome. The MSD in velocity and flow occurs in patients with gradients >60 mm Hg. The nadir velocity in the LV occurs ...
متن کاملMyocardial shortening in 3 orthogonal directions and its transmural variation in patients with nonobstructive hypertrophic cardiomyopathy.
BACKGROUND Although longitudinal strain (LS) is known to be reduced in patients with hypertrophic cardiomyopathy (HCM), it has not been elucidated whether or not circumferential strain (CS) is reduced. We aimed to determine whether multidirectional and layer-specific myocardial strain is reduced in patients with nonobstructive HCM. METHODSANDRESULTS Speckle-tracking echocardiography was perfo...
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ژورنال
عنوان ژورنال: British Journal of Clinical Pharmacology
سال: 2013
ISSN: 0306-5251
DOI: 10.1111/bcp.12027