نتایج جستجو برای: hemodynamic parameters
تعداد نتایج: 606510 فیلتر نتایج به سال:
BACKGROUND Poststroke vascular cognitive impairment is highly prevalent with significant functional consequences. However, reliable biomarkers for early prediction of cognitive decline after acute ischemic stroke (AIS) are not well established. Although parenchymal imaging in patients with AIS and transient ischemic attack (TIA) may predict the resultant cognitive impairment, it may not explain...
Objective- The purpose of this study was to investigate the feasibility of performing echocardiography in apparently healthy pigeons, and measurement of the quantitative cardiac indices using B-mode and Doppler techniques. Design- Experimental study Animals- Ten apparently healthy pigeons Procedures- Echocardi...
Introduction: Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders in women during reproductive ages. This syndrome is associated with disruption of sex hormone levels. Studies have shown that endurance of the heart to ischemia-reperfusion (I/R) injury can be affected by sex hormones. In the present study, the rate of cardiac tolerance against I/R injury in the PCOS ra...
Background: Various drugs are used as adjuvants to improve the quality of supraclavicular block. Objective: This study aimed to investigate the effect of adding dexmedetomidine to lidocaine on the characteristics of supraclavicular block in upper limb surgeries. Methods: This double-blind controlled clinical trial was conducted on patients undergoing upper extremity fracture surgery under a ...
Background and Purpose—We explored the association between transcranial Doppler hemodynamic parameters and the risk of stroke in the general population. Methods—At baseline, we assessed mean flow velocity, peak systolic flow velocity, end diastolic flow velocity, and vasomotor reactivity with transcranial Doppler in 2022 Rotterdam Study participants aged 61 years and over in both middle cerebra...
PURPOSE Current knowledge about pulmonary/systemic hemodynamics and gas exchange during neonatal resuscitation in a model of transitioning fetal circulation with fetal shunts and fluid-filled alveoli is limited. Using a fetal lamb asphyxia model, we sought to determine whether hemodynamic or gas-exchange parameters predicted successful return of spontaneous circulation (ROSC). METHODS The umb...
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