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Hemodynamic review

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https://www.readbyqxmd.com/read/29239759/alternative-treatment-options-for-atrioventricular-nodal-reentry-tachycardia-an-emergency-medicine-review
#1
Sarah Brubaker, Brit Long, Alex Koyfman
BACKGROUND: Atrioventricular-nodal-reentry tachycardia (AVNRT) is a form of supraventricular tachycardia (SVT) that is relatively common in the emergency department (ED). It is rarely indicative of underlying electrical or structural pathology. OBJECTIVE: This review evaluates the literature and controversies concerning treatment of AVNRT in the ED. DISCUSSION: For treatment of narrow-complex tachycardia, Advanced Cardiovascular Life Support guidelines recommend the use of vagal maneuvers, followed by adenosine...
November 24, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29231794/intracranial-contrast-transit-times-on-digital-subtraction-angiography-decrease-more-in-patients-with-delayed-intraparenchymal-hemorrhage-after-pipeline
#2
Denise Brunozzi, Sophia F Shakur, Fady T Charbel, Ali Alaraj
Background Pipeline embolization devices (PEDs) are used for endovascular treatment of cerebral aneurysms but can be associated with delayed ipsilateral intraparenchymal hemorrhage (DIPH). Changes in intracranial hemodynamics after PED are poorly understood. Objective Here, we assess hemodynamic changes after PED in patients and compare these changes in patients with and without DIPH (DIPH+ and DIPH-). Methods Records of patients with distal internal carotid artery (ICA) aneurysms treated with PED at our institution between 2012 and 2017 were retrospectively reviewed...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29230392/non-invasive-monitoring-of-cardiac-output-in-critical-care-medicine
#3
REVIEW
Lee S Nguyen, Pierre Squara
Critically ill patients require close hemodynamic monitoring to titrate treatment on a regular basis. It allows administering fluid with parsimony and adjusting inotropes and vasoactive drugs when necessary. Although invasive monitoring is considered as the reference method, non-invasive monitoring presents the obvious advantage of being associated with fewer complications, at the expanse of accuracy, precision, and step-response change. A great many methods and devices are now used over the world, and this article focuses on several of them, providing with a brief review of related underlying physical principles and validation articles analysis...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29229372/invasive-and-noninvasive-hemodynamic-assessment-in-adults-with-fontan-palliation
#4
Alexander C Egbe, Heidi M Connolly, Nathaniel W Taggart, Mohamad Al-Otaibi, Barry A Borlaug
BACKGROUND/OBJECTIVES: Although echocardiographic-Doppler cardiac index (CI) assessment is widely used to guide heart failure management in patients with biventricular circulation, this application has not been studied in the Fontan population. The objective of this study was to: (1) determine the correlation between Doppler and cardiac catheterization CI calculation; (2) determine the association between Doppler CI and the occurrence of Fontan failure. METHODS: Retrospective review of adult Fontan patients followed at Mayo Clinic Adult Congenital Heart Disease program, 1994-2015...
December 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29227300/exercise-testing-in-heart-failure-a-contemporary-discussion-in-an-era-of-novel-diagnostic-techniques-and-biomarkers
#5
Kegan J Moneghetti, Jeffrey W Christle, Jonathan Myers, Francois Haddad
PURPOSE OF REVIEW: The purpose of this review is to highlight recent advances in the field of exercise testing for patients with heart failure. RECENT FINDINGS: The importance of assessment of cardiorespiratory fitness (CRF) and exercise testing in heart failure is highlighted in the consensus recommendation of the American Heart Association. Contemporary studies have validated the independent and incremental strength of CRF metrics in patients with heart failure and coronary artery disease...
December 8, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/29227289/perioperative-steroid-therapy-where-s-the-evidence
#6
Leon Freudzon
PURPOSE OF REVIEW: Review of historical and current evidence of adrenal suppression in patients on chronic glucocorticoid therapy during perioperative period, and discussion of current recommendations for perioperative stress dose steroid administration. RECENT FINDINGS: Evidence suggests low incidence of perioperative adrenal insufficiency in patients receiving chronic glucocorticoid therapy. Recent studies show no difference in survival or hemodynamic sequella by withholding perioperative stress steroids; however, these studies are limited in size and universal applicability...
December 8, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29223732/a-comparison-of-4d-flow-mri-derived-wall-shear-stress-with-computational-fluid-dynamics-methods-for-intracranial-aneurysms-and-carotid-bifurcations-a-review
#7
REVIEW
Jeremy Szajer, Kevin Ho-Shon
BACKGROUND: 4D flow MRI is a relatively quick method for obtaining wall shear stress (WSS) in vivo, a hemodynamic parameter which has shown promise in risk stratification for rupture of cerebrovascular diseases such as intracranial aneurysms and atherosclerotic plaques. The accuracy of such measurements is still largely unknown. OBJECTIVE: To quantify the accuracy of 4D flow MRI-derived wall shear stress values for intracranial aneurysms and carotid bifurcations...
December 6, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29217443/analysis-of-aortic-growth-rates-in-uncomplicated-type-b-dissection
#8
Maen Aboul Hosn, Paolo Goffredo, Jeffrey Zavala, William J Sharp, Neelima Katragunta, Timothy Kresowik, Rachael Nicholson, Luigi Pascarella
OBJECTIVES: Uncomplicated type B dissections have historically been treated medically with hemodynamic control. Early progression of the disease and late aneurysmal dilation have been considered as indications for intervention. The aim of this study is to analyze growth rate patterns of type B dissections based on Computed Tomography measurements over time. METHODS: We conducted a retrospective review of patients with acute type B dissection from 2008 to 2014 who had at least two follow up CT scans...
December 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29217241/myocardial-protection-in-mitral-valve-surgery-comparison-between-minimally-invasive-approach-and-standard-sternotomy
#9
Jean-Sébastien Lebon, Pierre Couture, Annik Fortier, Antoine G Rochon, Christian Ayoub, Claudia Viens, Éric Laliberté, Denis Bouchard, Michel Pellerin, Alain Deschamps
OBJECTIVE: To compare antegrade and retrograde cardioplegia administration in minimally invasive mitral valve surgery (MIMS) and open mitral valve surgery (OMS) for myocardial protection. DESIGN: Retrospective study. SETTING: Tertiary care university hospital. PARTICIPANTS: The study comprised 118 patients undergoing MIMS and 118 patients undergoing OMS. INTERVENTIONS: The data of patients admitted for MIMS from 2006 to 2010 were reviewed...
August 30, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29216952/-sepsis-induced-cardiomyopathy-complicated-with-cardiogenic-shock-patients-supported-with-extracorporeal-membrane-oxygenation
#10
Changzhi Liu, Ruiqiu Zhu, Zhujiang Zhou, Haifeng Liu, Jingcheng Lin, Shuchao Wen, Liuer Zuo
Sepsis-induced cardiomyopathy is a reversible myocardial dysfunction due to sepsis, which may be severe enough to complicate cardiogenic shock, and without effective drug and with high mortality during the acute phase. A case of sepsis-induced cardiomyopathy complicated with cardiogenic shock was treated in the intensive care unit (ICU) of Shunde Hospital Southern Medical University. A 37 years old female patient was admitted because she had suffered repeated fever for 5 days, chest tightness and abdominal pain for 3 days...
December 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29216679/the-role-of-extracorporeal-membrane-oxygenator-therapy-in-the-setting-of-type-a-aortic-dissection
#11
Ibrahim Sultan, Andreas Habertheuer, Tyler Wallen, Mary Siki, Wilson Szeto, Joseph E Bavaria, Matthew Williams, Prashanth Vallabhajosyula
BACKGROUND AND AIM: Patients presenting with type A aortic dissection (TAAD) present with a wide clinical spectrum ranging from hemodynamic stability to multiorgan malperfusion with cardiovascular collapse. Extracorporeal membrane oxygenator (ECMO) therapy is increasingly being utilized as salvage therapy in patients with acute cardiopulmonary failure and for post-cardiotomy shock. We sought to determine the utility of ECMO implementation post-TAAD repair. METHODS: The Pennsylvania Health Care Cost Containment Council (PHC4) database, maintained by an independently functioning state agency, was retrospectively reviewed from 2004 to 2014...
December 7, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29216459/pushing-the-boundaries-of-neuroimaging-with-optoacoustics
#12
REVIEW
Saak V Ovsepian, Ivan Olefir, Gil Westmeyer, Daniel Razansky, Vasilis Ntziachristos
With the central ability to visualize a variety of endogenous chromophores and biomarkers or exogenous contrast agents, optoacoustic (photoacoustic) imaging empowers new experimental capabilities for investigating brain mechanisms and functions. Here, the operational principles of optoacoustic neuroimaging are reviewed in conjunction with recent advances enabling high-resolution and real-time observation, which extend beyond the reach of optical imaging methods. Multiple implementations of optoacoustics for monitoring hemodynamics and neuro-vascular responses in the brain are showcased...
December 6, 2017: Neuron
https://www.readbyqxmd.com/read/29212967/integrated-bioinformatics-analysis-predicts-the-key-genes-involved-in-aortic-valve-calcification-from-hemodynamic-changes-to-extracellular-remodeling
#13
Mu Liu, Ming Luo, Haoliang Sun, Buqing Ni, Yongfeng Shao
In our aging world, increasing numbers of people are suffering from calcific aortic valve disease (CAVD). In this study, we used integrated bioinformatics analysis to predict several key genes that are involved in the initiation and progression of CAVD. Expression profiles of 15 calcific and 14 normal human aortic valve samples were generated from two gene expression datasets (GSE12644 and GSE51472). Dataset GSE26953 from the human aortic valve fibrosa-derived endothelial cells cultured under laminar or oscillatory shear stress was also evaluated...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29211402/sonographic-patterns-of-peyronie-s-disease-in-patients-with-absence-of-palpable-plaques
#14
Lucio Dell'Atti, Andrea Benedetto Galosi
PURPOSE: Non-palpable isolated septal plaques of the penis are likely present in a significant number of patients affected by erectile dysfunction (ED) and penile pain without deformity or curvature. The aim of this study was to evaluate the ultrasound (US) patterns observed in patients investigated for ED or penile pain without curvature. MATERIALS AND METHODS: We reviewed the medical records of 386 patients who underwent an initial colour-Doppler ultrasonography (CDU) of the penis for DE and/or penile pain without curvature...
December 7, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29210983/the-potential-pathogenic-contributions-of-endothelial-barrier-and-arterial-contractile-dysfunction-to-shock-due-to-b-anthracis-lethal-and-edema-toxins
#15
REVIEW
Dante A Suffredini, Xizhong Cui, Wanying Xu, Yan Li, Peter Q Eichacker
Shock with B. anthracis infection is particularly resistant to conventional cardiovascular support and its mortality rate appears higher than with more common bacterial pathogens. As opposed to many bacteria that lack exotoxins directly depressing hemodynamic function, lethal and edema toxin (LT and ET respectively) both cause shock and likely contribute to the high lethality rate with B. anthracis. Selective inhibition of the toxins is protective in infection models, and administration of either toxin alone in animals produces hypotension with accompanying organ injury and lethality...
December 6, 2017: Toxins
https://www.readbyqxmd.com/read/29210030/pharmacologic-prevention-of-variceal-bleeding-and-rebleeding
#16
REVIEW
Anna Baiges, Virginia Hernández-Gea, Jaime Bosch
BACKGROUND: Variceal bleeding is a major complication of portal hypertension, which is associated with significant mortality. Moreover, patients surviving a variceal bleeding episode have very high risk of rebleeding, which is associated with mortality as high as that of the first bleed. Because of this, prevention of bleeding from gastroesophageal varices has been one of the main therapeutic goals since the advent of the first effective therapies for portal hypertension. AIM: This review deals with the present day state-of-the-art pharmacological prevention of variceal bleeding in primary and secondary prophylaxis...
December 5, 2017: Hepatology International
https://www.readbyqxmd.com/read/29209927/hydroxocobalamin-for-the-treatment-of-cardiac-surgery-associated-vasoplegia-a-case-series
#17
Pranav R Shah, Penny S Reynolds, Nirvik Pal, Daniel Tang, Harry McCarthy, Bruce D Spiess
PURPOSE: Vasoplegia is a clinical syndrome marked by severe arteriolar vasodilatation, hypotension, and low systemic vascular resistance refractory to multiple vasopressor treatment. We report our experience with hydroxocobalamin (B12) infusion as a potential rescue adjunct for refractory vasoplegia during cardiopulmonary bypass (CPB). METHODS: We performed a retrospective chart review of 33 patients undergoing cardiac surgery between 1 January 2013 and 31 December 2015, who were given intravenous B12 for refractory hypotension during, or immediately following, CPB...
December 5, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29206693/long-term-results-of-suture-annuloplasty-for-degenerative-mitral-valve-disease-a-propensity-matched-analysis
#18
Andrea Garatti, Alberto Canziani, Alessandro Parolari, Serenella Castelvecchio, Marco Guazzi, Andrea Daprati, Ali Abu Farah, Francesco Grimaldi, Sonia Tripepi, Lorenzo Menicanti
AIMS: Ring annuloplasty is the gold standard of surgical repair in degenerative mitral valve disease. However, prosthetic annuloplasty has some drawbacks and potential hazards. Suture annuloplasty theoretically is able to preserve annular leaflet dynamics and left ventricular performance, but experience is limited. The aim of the study was to review the early and long-term outcome of the posterior double-suture annuloplasty (DSA) technique for degenerative mitral valve repair. METHODS: From January 2002 to December 2008, 400 patients underwent primary mitral valve repair for degenerative disease either with posterior DSA [n = 147 (37%)] or with flexible posterior annuloplasty band [n = 253 (63%)]...
January 2018: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29204306/facial-palsy-after-embolization-of-dural-arteriovenous-fistula-a-case-report-and-literature-review
#19
Luana Antunes Maranha Gatto, Fernando Saurin, Gelson Luis Koppe, Zeferino Demartini
Background: Dural arteriovenous fistulas (DAVF) are unusual intracranial vascular malformations consisting of anomalous connections between meningeal arteries and dural sinuses or the veins that pass through them. They have variable clinical presentation and prognosis, which depend on their location and venous hemodynamics. Treatment is based on the closure of the abnormal connections, which is usually conducted via arterial and/or transvenous endovascular techniques. Case Description: We present a male patient who complained of headaches and left-sided pulsatile tinnitus due to DAVF from the external carotid artery branches draining directly into the ipsilateral sigmoid sinus...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29200368/influence-of-fasting-duration-on-body-fluid-and-hemodynamics
#20
Masanori Tsukamoto, Takashi Hitosugi, Takeshi Yokoyama
Fasting before general anesthesia aims to reduce the volume and acidity of stomach contents, which reduces the risk of regurgitation and aspiration. Prolonged fasting for many hours prior to surgery could lead to unstable hemodynamics, however. Therefore, preoperative oral intake of clear fluids 2 hours prior to surgery is recommended to decrease dehydration without an increase in aspiration risk. In this study, we investigated the body fluid composition and hemodynamics of patients undergoing general anesthesia as the first case of the day versus the second subsequent case...
2017: Anesthesia Progress
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