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The Arteries, the Endothelium, Endothelial Dysfunction, Glycocalyx, Glycocalyx Dysfunction, Nitric Oxide, and CHD
Published in Mark C Houston, The Truth About Heart Disease, 2023
The alterations to the arterial muscle include leaking of the blood vessel with the loss of proteins into the cells, tissues, and organs. If this happens in the kidney, then the proteins spill into the urine (proteinuria), which is very abnormal and predicts future kidney disease. Another alteration is the constriction or narrowing of the artery with reduced blood flow and hypertension. Finally, there may be abnormal growth, thickening, and stiffness of the artery which leads to arteriosclerosis and subsequent CHD and MI.
Kampo Medicine: A Different Model for Integrating Health Care Practices
Published in David R. Katerere, Wendy Applequist, Oluwaseyi M. Aboyade, Chamunorwa Togo, Traditional and Indigenous Knowledge for the Modern Era, 2019
The term Ki-depression refers to a condition of insufficient circulation of Ki. The corresponding symptoms of this state are as follows: Head: depression, heavy feeling of the head, disturbance of consciousnessThroat: feeling of constriction and strangulation, lump sensation in the throatChest: Feeling of distress and accumulation of fluid in the chest, feeling of oppression and difficulty in breathingCostal region: tender on pressure, sensation of pain, feeling of constrictionAbdomen: abdominal distention, sensation of gas retentionExtremities: numbness with a sensation of swelling
Pericardial disease in the elderly
Published in Wilbert S. Aronow, Jerome L. Fleg, Michael W. Rich, Tresch and Aronow’s Cardiovascular Disease in the Elderly, 2019
The symptoms of untreated constrictive pericarditis are often permanent and progressive. In a very small group of patients affected by this disease, constriction may be transient or reversible, and this most commonly occurs in the setting of pericardial inflammation related to post-pericardiotomy or post-viral pericarditis (47,48). In patients with newly diagnosed constrictive pericarditis and who are hemodynamically stable with evidence of pericarditis by clinical criteria or especially imaging (e.g., CMR), a trial of conservative anti-inflammatory medical management is recommended for a few months (49–51).
A pilot investigation of twang quality using magnetic resonance imaging
Published in Logopedics Phoniatrics Vocology, 2021
Karen Perta, Youkyung Bae, Kerrie Obert
Despite some application potential for voice therapy and singing pedagogy, limited information is available regarding specific physiologic characteristics of twang. The term constriction in the context of voice production is generally considered counterproductive for vocal health. However, it has been postulated that the efficient constriction associated with twang occurs at a more superior level within the vocal tract (e.g. aryepiglottic narrowing [10]). If adequately produced, this gesture should be distinct from the active and excessive medial compression of the true and/or false vocal folds associated with voice disorders (e.g. muscle tension dysphonia [16]). Titze [14] further provided a theoretical basis explaining the contribution of pharyngeal narrowing, in addition to epilaryngeal constriction, to increasing vocal tract inertance and thus facilitating resonant voice. However, to the best of our knowledge, no physiologic data exist with regard to how and to what extent pharyngeal narrowing is achieved for twang quality.
Image focus: an uncommon cause of isolated right-sided heart failure
Published in Acta Cardiologica, 2020
Bert Zwaenepoel, Ann-Catherine Soenen, Els Viaene
Tuberculous pericarditis is an important complication of tuberculosis. The diagnosis is often delayed or missed, resulting in late complications. The most serious sequel is constrictive tuberculous pericarditis. As seen in Figure 1, cardiac constriction gives rise to a typical pattern on echocardiography. Constriction can be due to different causes (radiation therapy, previous cardiac surgery, repeated pericarditis, etc.). However, tuberculosis should always be kept in mind as the estimated number of new TB cases increases steadily over the past few years. Once the diagnosis is made, prompt anti-tuberculous therapy should be initiated, apart from diuretics to relieve the signs of right-sided heart failure. Pericardiectomy should be considered for selected patients who have failed to response to medical therapy.
Multimodality imaging for the diagnosis and treatment of constrictive pericarditis
Published in Expert Review of Cardiovascular Therapy, 2019
Michael Chetrit, Natalie Natalie Szpakowski, Milind Y. Desai
Effusive-constrictive pericarditis is a relatively rare phenomenon with hemodynamic traits of both cardiac tamponade and constrictive pericarditis. Once the pericardial fluid is drained in effusive-constrictive pericarditis (ECP), there is persistent elevation of right atrial pressures in the setting of normal intrapericardial pressure [5]. A more precise definition alludes to a failure of right atrial pressure to decrease by 50% or below 10 mmHg [3]. This residual constriction is thought to be caused by an inelastic visceral pericardial layer, likely due to inflammation. In a cohort of 205 patients, 16% were diagnosed with effusive-constrictive pericarditis following pericardiocentesis [6]. The majority of cases are idiopathic in etiology, but can be attributed to most of the other causes of pericardial disease. In particular, tuberculosis and radiation are known to cause effusive-constrictive pericarditis [2,5]. In a series of 259 patients with a pericardial effusion undergoing pericardiocentesis, pericardiostomy, biopsy, and fluid analysis, a total of 9 (3.5%) had features suggestive of underlying effusive constrictive pericarditis [7]. Interestingly, in this single center cohort, the etiology of the effusion in these 9 patients with ECP included malignancy (33%), and the remaining had a virus negative epicardial biopsy with demonstration of autoantibodies (Anti-myolemmal and Anti-fibrillary antibodies) and were classified as auto-reactive [7].