Publications by authors named "Fernando Mendes Sant'Anna"

Background: The autonomic nervous system (ANS) imbalance in heart failure (HF) creates a vicious cycle, excess sympathetic activity, and decreased vagal activity contributing to the worsening of HF. Low-intensity transcutaneous electrical stimulation of the auricular branch of the vagus nerve (taVNS) is well tolerated and opens new therapeutic possibilities.

Objectives: To hypothesize the applicability and benefit of taVNS in HF through intergroup comparison of echocardiography parameters, 6-minute walk test, Holter heart rate variability (SDNN and rMSSD), Minnesota quality of life questionnaire, and functional class by the New York Heart Association.

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: Chronic cervical pain is a common and recurrent complaint. Auriculotherapy (AT) or ear acupuncture is an effective complementary method used for pain control, but only a few studies have evaluated this treatment for chronic cervical pain. Thus, the aim of this study was to analyze the effectiveness of AT to control chronic cervical pain and improve functional capacity.

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The aim of this study was to evaluate the effects of invasive vagal nerve stimulation (VNS) in patients with chronic heart failure (HF) and reduced ejection fraction (HFrEF). Heart failure is characterized by autonomic nervous system imbalance and electrical events that can lead to sudden death. The effects of parasympathetic (vagal) stimulation in patients with HF are not well-established.

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Background: In multivessel disease patients with moderate stenosis, fractional flow reserve (FFR) allows the analysis of the lesions and guides treatment, and could contribute to the cost-effectiveness (CE) of non-pharmacological stents (NPS).

Objectives: To evaluate CE and clinical impact of FFR-guided versus angiography-guided angioplasty (ANGIO) in multivessel patients using NPS.

Methods: Multivessel disease patients were prospectively randomized to FFR or ANGIO groups during a 5 year-period and followed for < 12 months.

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Background: The angiography has been used as a reference standard to define coronary artery disease (CAD), although its limitations are well-known. The significance of the myocardial fractional flow reserve (FFR) in the assessment of CAD is well established.

Objective: The aim of this study was to evaluate the accuracy of angiography when defining ischemic lesions and its correlation with FFR.

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From all congenital cardiopathies, anomalous origin of anterior interventricular artery occurs once per 300,0000 live births, reporting high mortality in the first year after birth. However, if good collateral circulation is available for the artery related to the abnormality, the patient may be kept asymptomatic until mature age. This is the report on a rare case of a 43-year-old patient who was oligosymptomatic, with normal ventricular function in this pathology presentation.

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It is known that coronary atherosclerosis is a diffuse process, very little visible at angiography. This article describes a stable angina patient, three months after acute myocardial infarction (AMI), and a severe lesion in anterior descending artery (ADA), evinced by coronariography. Myocardial fractional flow reserve (FFR), obtained through intracoronary pressure measurements, was 0.

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