نتایج جستجو برای: valsalva retinopathy

تعداد نتایج: 23107  

2016
Akihiko Ikeda Tomomi Nakajima Taisuke Konishi Kanji Matsuzaki Akinori Sugano Yuko Fumikura Hidetaka Nishina Tomoaki Jikuya

Asymptomatic rupture of a sinus of Valsalva aneurysm is rare. A fistula following rupture of a sinus of Valsalva aneurysm may cause infective endocarditis. Here, we report a case of infective endocarditis of an aorto-right atrial fistula caused by asymptomatic rupture of a sinus of Valsalva aneurysm. A 45-year-old male, who was first diagnosed with a heart murmur at the age of 37 years, present...

2016
Yong Woo Kim Michael J. A. Girard Jean Martial Mari Jin Wook Jeoung

PURPOSE To investigate lamina cribrosa (LC) displacement during the Valsalva maneuver in young healthy eyes using enhanced depth imaging (EDI) spectral-domain optical coherence tomography (SD-OCT). METHODS Forty-eight eyes of 48 young healthy volunteers (age range: 20-34 years) underwent intraocular pressure (IOP) measurement by Goldmann applanation tonometry as well as Cirrus HD-OCT scans be...

2008
Luiz Fernando Junqueira

Junqueira LF Jr. Teaching cardiac autonomic function dynamics employing the Valsalva (Valsalva-Weber) maneuver. Adv Physiol Educ 32: 100–106, 2008; doi:10.1152/advan.00057.2007.—In this report, a brief history of the Valsalva (Valsalva-Weber) maneuver is outlined, followed by an explanation on the use of this approach for the evaluation of cardiac autonomic function based on underlying heart ra...

2016
Vinod Kumar Parijat Chandra Atul Kumar

Manuscript received: 18.10.15; Revision accepted: 29.02.16 A 32‐year‐old male presented with 4 weeks history of sudden decrease of vision in his right eye following a bout of cough. The left eye was normal. The anterior segment in the right eye was normal. A dilated fundus of the right eye showed a 6 mm × 4 mm area of premacular hemorrhage [Fig. 1a]. Spectral domain optical coherence tomography...

Journal: :American journal of physiology. Heart and circulatory physiology 2005
Julian M Stewart Leslie D Montgomery

The Valsalva maneuver is frequently used to test autonomic function. Previous work demonstrated that the blood pressure decrease during the Valsalva maneuver relates to thoracic hypovolemia, which may preclude pressure recovery during phase II, even with normal resting peripheral vasoconstriction. We hypothesized that increased regional blood volume, specifically splanchnic hypervolemia, accoun...

Journal: :research in cardiovascular medicine 0
seyed mehran hosseini department of physiology, golestan university of medical sciences, gorgan, ir iran mohsen jamshir cardiac electrophysiology research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; cardiac electrophysiology research center, rajaie cardiovascular medical and research center, vali-asr st., niayesh blvd, tehran, ir iran. tel: +98-9125041395, fax: +98-2144129533

background during the four steps of the valsalva maneuver (vm), opposite changes can be observed in some physiologic parameters. manifestations of the vm in the electrocardiogram (ecg) have been studied in detail, but there have been few reports comparing vm-related biochemical and hemodynamic changes with a focus on the strain phase of the vm. objectives we studied strain-related ecg changes d...

Journal: :Journal of the Royal Society of Medicine 2006

ژورنال: طب جنوب 2022
Heidari , Zahra, Sharafi , Zahra,

Background: Diabetic retinopathy is a common chronic complication of diabetes and one of the leading causes of acquired blindness in the world. There is growing evidence that traditional risk factors do not fully justify the onset and progression of diabetic retinopathy. Therefore, some other risk factors such as non-alcoholic fatty liver disease may be involved in the pathophysiology of diabe...

Journal: :مجله دانشگاه علوم پزشکی شهید صدوقی یزد 0
مسعود رضا معنویت mr manaviat محمد افخمی اردکانی m afkhami-ardakani مریم رشیدی m rashidi

introduction: it seems that improvement in care and new treatment and screening methods along with better control of diabetes mellitus (dm) has led to a change in incidence of diabetic complications, especially diabetic retinopathy .this study was performed to assess the 4 years incidence rate of diabetic retinopathy in patients with type ii diabetes and factors affecting its progression. metho...

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