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https://www.readbyqxmd.com/read/29145311/pulmonary-hypertension-as-a-manifestation-of-mitochondrial-disease-a-case-report-and-review-of-the-literature
#1
Shan Xu, Xiaoling Xu, Jisong Zhang, Kejing Ying, Yuquan Shao, Ruifeng Zhang
BACKGROUND: Mitochondrial diseases are a group of multisystem heterogeneous diseases caused by pathologic dysfunction of the mitochondrial respiratory chain. A wide range of clinical expression has been described. However, pulmonary hypertension has rarely been described in association with mitochondrial disease until the past decade, and there is no currently recognized treatment for the pulmonary hypertension complicated with mitochondrial disorder. PATIENT CONCERNS: We reported the case of a 15-year-old boy who presented with shortness of breath and exercise limitation after a cold, and the diagnosis of pulmonary hypertension was confirmed by right heart catheter...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145303/epicardial-radiofrequency-catheter-ablation-of-brugada-syndrome-with-electrical-storm-during-ventricular-fibrillation-a-case-report
#2
Shufen Jiang, Xiaomeng Yin, Chang Dong, Yunlong Xia, Jinqiu Liu
RATIONALE: Brugada syndrome (BrS) is characterized by ST segment elevation at the J point ≥2 mm in the right precordial electrocardiogram (ECG) leads, in the absence of structural heart disease, electrolyte disturbances, or ischemia. It is a well-described cause of sudden death in young patients, especially in the age of between 30 and 40 years old. Here, we reported an unusual case of electrical storm (ES) of ventricular fibrillation (VF) caused by BrS with complete right bundle-branch block (CRBBB) in a 75-year-old male patient...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29142756/usefulness-of-central-venous-saturation-as-a-predictor-of-thiamine-deficiency-in-critically-ill-patients-a-case-report
#3
Genri Numata, Satoshi Kodera, Hiroyuki Kiriyama, Atsuko Nakayama, Eisuke Amiya, Arihiro Kiyosue, Masaru Hatano, Eiki Takimoto, Masafumi Watanabe, Issei Komuro
Background: Central venous oxygen saturation (ScvO2) reflects the balance of oxygen delivery and consumption. Low ScvO2 indicates the presence of inadequate oxygen delivery, while high ScvO2 indicates reduced oxygen consumption and is sometimes associated with a high mortality rate in critically ill patients from dysoxia. Thiamine is an essential cofactor in cellular aerobic metabolism. Thiamine deficiency is more prevalent than was previously thought, and underlies severe conditions in critically ill patients...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/29138409/predicting-the-origin-of-ventricular-arrhythmia-using-acoustic-cardiography
#4
Chin-Yu Lin, Shih-Lin Chang, Yenn-Jiang Lin, Li-Wei Lo, Yu-Feng Hu, Tze-Fan Chao, Fa-Po Chung, Ta-Chuan Tuan, Jo-Nan Liao, Yao-Ting Chang, Abigail Louise D Te, Shinya Yamada, Hao-Min Cheng, Shih-Hsien Sung, Ling Kuo, Hsing-Yuan Li, Ting-Yung Chang, Hoang Quang Minh, Simon Salim, Ting-Chung Huang, Shih-Ann Chen
This study aimed to examine the relationship between measurements related to heart sounds and the origin of ventricular arrhythmia. We retrospectively evaluated 45 patients undergoing catheter ablation with contemporaneous digital acoustic cardiography of the first heart sound (S1) and the second heart sound (S2). The patients with baseline wide QRS morphology (>120 ms or aberrant conduction), heart failure, valvular heart disease, chronic pulmonary disease, and obesity were excluded. Ventricular arrhythmias from the left ventricle had an increased S1 complexity score and S1 duration in comparison to adjacent sinus beats...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29138143/minimally-invasive-stand-alone-cox-maze-procedure-for-persistent-and-long-standing-persistent-atrial-fibrillation-perioperative-safety-and-5-year-outcomes
#5
Niv Ad, Sari D Holmes, Ted Friehling
BACKGROUND: Rhythm control is challenging in patients with extended atrial fibrillation (AF) duration and persistent/long-standing persistent AF. Among surgical approaches to treat AF, the Cox maze procedure performed using alternative energy sources remains superior to other beating heart techniques. We examined permanence of safety and success for the on-pump, minimally invasive, stand-alone Cox maze procedure 5 years after surgery. METHODS AND RESULTS: Stand-alone, right 5 cm minithoracotomy, Cox maze III/IV procedure for nonparoxysmal AF was conducted in 133 patients (mean follow-up=65±34 months)...
November 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29135479/use-of-remote-pulmonary-artery-pressure-monitoring-cardiomems-system-in-total-artificial-heart-to-assess-pulmonary-hemodynamics-for-heart-transplantation
#6
Salman Gohar, Ziad Taimeh, Jeff Morgan, O H Frazier, Francisco Arabia, Andrew Civitello, Ajith Nair
The temporary total artificial heart (TAH-t) has been valuable as a bridge to transplantation in patients with biventricular failure. However, the challenges of accurately assessing pulmonary vascular resistance after TAH-t implantation can preclude these patients from heart transplantation, especially those with pre-existing pulmonary hypertension. The CardioMEMS Heart Failure System (St. Jude's Medical, Little Canada, MN) comprises a wireless pressure sensor that is implanted percutaneously in the pulmonary artery and transmits real-time measurements of pulmonary artery pressures...
November 8, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29133070/percutaneous-treatment-for-native-mitral-regurgitation
#7
REVIEW
Paul Sorajja, Francesco Maisano
Severe mitral regurgitation (MR) confers an adverse prognosis, frequently with debilitating symptoms of heart failure. While open surgical correction has been the standard of care for decades, novel catheter-based technologies have emerged that are highly effective in the treatment of MR. These percutaneous technologies, which include methods for both repair as well as valve replacement, have the potential to address unmet clinical needs in patients with MR, and serve as a viable alternative to surgery.
November 10, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29131434/five-year-impact-of-catheter-ablation-for-atrial-fibrillation-in-patients-with-a-prior-history-of-stroke
#8
T Jared Bunch, Heidi T May, Tami L Bair, Brian G Crandall, Michael J Cutler, John D Day, Victoria Jacobs, Charles Mallender, Jeffrey S Osborn, J Peter Weiss
BACKGROUND: Catheter ablation of atrial fibrillation(AF) is an established therapeutic rhythm approach. Patients with a prior history of a stroke(CVA) represent a unique high-risk population for recurrent thromboembolic events. The role of antiarrhythmic treatment on the natural history of stroke recurrence in these patients is not fully understood. METHODS: Three patient groups with a prior CVA and 5 years of follow-up were matched 1:3:3 by propensity score(±0...
November 13, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29115016/pulmonary-hypertension-in-stiff-left-atrial-syndrome-pathogenesis-and-treatment-in-one
#9
Micha T Maeder, Reto Nägele, Philipp Rohner, Daniel Weilenmann
We present the rare case of a patient with pulmonary hypertension in the context of the stiff left atrial syndrome after extensive catheter ablation, a unique constellation characterized by high pulmonary artery and pulmonary artery wedge pressures due to left atrial dysfunction but normal left ventricular end-diastolic pressure, normal mitral valve, and absence pulmonary vein stenosis. This patient was surprisingly oligosymptomatic, however, which may have been due to a persistent post-puncture atrial septal defect, which may have allowed for controlled left atrial decompression, which is in line with the novel concept of the catheter-based creation of an intracardiac shunt as a treatment for heart failure...
November 8, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29114700/invasive-candidiasis-in-pediatric-patients-at-king-fahad-medical-city-in-central-saudi-arabia-a-5-year-retrospective-study
#10
Zainab Almooosa, Gasmelseed Y Ahmed, Abeer Omran, Ayah AlSarheed, Afnan Alturki, Abdulaziz Alaqeel, Mohammed Alshehri, Tariq Alfawaz, Dayel AlShahrani
To identify predisposing factors, species distribution, antifungal susceptibility, and outcome. Methods: This study is a retrospective chart review that was conducted at a children's hospital at King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia. One hundred twenty-nine children with invasive candidiasis who were admitted between January 2010 and January 2015. Results: The statistical analysis results have revealed a group of risk factors; prematurity in 37 (28.7%) of patients, low birth weight in 42 (32...
November 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/29111398/multi-slice-ct-msct-imaging-in-pre-trans-catheter-aortic-valve-implantation-tavi-screening-how-to-perform-and-how-to-interpret
#11
REVIEW
George Latsios, Themistoklis N Spyridopoulos, Konstantinos Toutouzas, Andreas Synetos, George Trantalis, Konstantinos Stathogiannis, Vassiliki Penesopoulou, George Oikonomou, Elias Brountzos, Dimitrios Tousoulis
Aortic valve stenosis (AS) is the commonest valvular heart disease among elderly. Trans-catheter aortic valve implantation (TAVI) has become an established and effective alternative therapeutical procedure for inoperable and high risk patients with symptomatic AS. The procedural success is greatly dependent on a thorough pre- TAVI imaging screening. This requires a comprehensive and multi-modality approach, in which multi-slice computed tomography (MSCT) is the cornerstone in the selection of eligible patients, in choosing the appropriate prosthesis and its size, as well as in mapping the safest access route for the intervention...
October 27, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/29110167/assessment-of-autonomic-nervous-system-modulation-after-novel-catheter-ablation-techniques-for-atrial-fibrillation-using-multiple-short-term-electrocardiogram-recordings
#12
Satoshi Yanagisawa, Yasuya Inden, Aya Fujii, Yosuke Kamikubo, Yasunori Kanzaki, Monami Ando, Junya Funabiki, Yosuke Murase, Masaki Takenaka, Noriaki Otake, Yoshihiro Ikai, Yusuke Sakamoto, Rei Shibata, Toyoaki Murohara
PURPOSE: The effect of novel catheter ablation techniques for atrial fibrillation (AF) on the autonomic nervous system (ANS) is unclear. This study aimed to assess the ANS after three novel catheter ablation techniques for paroxysmal AF by evaluating heart rate variability (HRV) parameters using a 3-min electrocardiogram recording. METHODS: Two hundred and thirty-five patients who underwent catheter ablation for paroxysmal AF (119 in irrigated-tip, 51 in contact-force sensing-guided, and 65 patients in second-generation cryoballoon ablation) were included...
November 6, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29102272/aspiration-thrombectomy-for-treatment-of-acute-massive-and-submassive-pulmonary-embolism-initial-single-center-prospective-experience
#13
Juan José Ciampi-Dopazo, Juan María Romeu-Prieto, Marcelino Sánchez-Casado, Beatriz Romerosa, Alfonso Canabal, María Luisa Rodríguez-Blanco, Carlos Lanciego
PURPOSE: To evaluate the feasibility of aspiration thrombectomy in patients with acute massive or submassive pulmonary embolism (PE). MATERIALS AND METHODS: This prospective study analyzed patient demographic data, procedural details, and outcomes in 18 consecutive patients (8 men and 10 women; mean age, 60.1 y; range, 36-80 y), 10 with acute submassive PE and 8 with massive PE, treated with an Indigo Continuous Aspiration Mechanical Thrombectomy Catheter between January 2016 and February 2017...
October 25, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29098486/implantable-loop-recorders-in-the-real-world-a-study-of-two-canadian-centers
#14
Omar A Ibrahim, Doran Drew, Christopher J Hayes, William McIntyre, Colette M Seifer, Wilma Hopman, Benedict Glover, Adrian M Baranchuk
PURPOSE: Implantable loop recorders (ILRs) are increasingly being used for ambulatory electrocardiography. We sought to evaluate ILR indications, diagnostic yield, ILR-guided interventions, and complications in two Canadian centers. METHODS: This was a retrospective study using electronic medical records to identify ILR implants at Queen's University and the University of Manitoba. Information was collected on patient characteristics, medications, indication for implant, results of prior investigations, diagnostic outcome, and subsequent management...
November 2, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29096870/hypoplastic-left-heart-syndrome-is-not-a-predictor-of-worse-intermediate-mortality-post-fontan
#15
Billie-Jean Martin, Kandice Mah, Luke Eckersley, Joyce Harder, Charissa Pockett, Daryl Schantz, John Dyck, Mohammed Al Aklabi, Ivan M Rebeyka, David B Ross
BACKGROUND: An increasing proportion of those living with single ventricle physiology have hypoplastic left heart syndrome (HLHS). Our objective was to assess the association between HLHS and outcomes post Fontan operation. METHODS: All pediatric patients who underwent a Fontan procedure at the University of Alberta between 1996 and 2016 were included. Follow-up clinical data collected included early and late surgical or catheter reintervention, echocardiography, and long-term transplant-free survival...
October 30, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29094471/antifibrillatory-effects-of-renal-denervation-on-ventricular-fibrillation-in-a-canine-model-of-pacing-induced-heart-failure
#16
Qingzhi Luo, Qi Jin, Ning Zhang, Shangwei Huang, Yanxin Han, Changjian Lin, Tianyou Ling, Kang Chen, Wenqi Pan, Liqun Wu
This study investigated the effects of renal denervation (RDN) on vulnerability to ventricular fibrillation (VF) and ventricular electrical properties in a canine model of pacing-induced heart failure (HF). Eighteen beagles were divided into the following three groups: control (n = 6), HF (n = 6) and HF+RDN (n = 6). HF was induced by rapid right ventricular pacing. RDN was performed simultaneously with the pacemaker implantation in the HF+RDN group. A 64-unipolar basket catheter was used to perform global endocardial mapping of the left ventricle...
November 2, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/29092770/avalon-catheters-in-pediatric-patients-requiring-ecmo-placement-and-migration-problems
#17
Marcus D Jarboe, Samir K Gadepalli, Joseph T Church, Meghan A Arnold, Ronald B Hirschl, George B Mychaliska
PURPOSE: The Avalon dual-lumen venovenous catheter has several advantages, but placement techniques and management have not been adequately addressed in the pediatric population. We assessed our institutional outcomes and complications using the Avalon catheter in children. METHODS: We reviewed all pediatric patients who had Avalon catheters placed for respiratory failure at our institution, excluding congenital heart disease patients, from April 2009 to March 2016...
October 12, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29092127/iatrogenic-lutembacher-syndrome-after-percutaneous-mitral-commissurotomy
#18
Theodoros D Karamitsos, Chrysovalantou Nikolaidou, Athanasios Koutsakis, Kyriakos Anastasiadis, Charalambos Karvounis, Stavros Hadjimiltiades
Atrial septal defects (ASDs) are common immediately after percutaneous mitral commissurotomy (PMC). They are usually small, hemodynamically insignificant, and tend to decrease or disappear within 6 to 12 months. Herein, a case is described of persistent ASD in a patient with mitral valve stenosis who had undergone successful PMC three years previously. The patient had signs and symptoms of right heart failure and severe tricuspid regurgitation (TR) with borderline right ventricular systolic function on echocardiography, in addition to the ASD...
May 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29090350/longer-ischemic-time-is-associated-with-increased-ventricular-stiffness-as-measured-by-pressure-volume-loop-analysis-in-pediatric-heart-transplant-recipients
#19
Luke W Schroeder, Shahryar M Chowdhury, Ali L Burnette, Minoo N Kavarana, G Hamilton Baker, Andrew J Savage, Andrew M Atz, Ryan J Butts
BACKGROUND: The purpose of this study was to investigate the associations between clinical factors and cardiac function as measured by pressure-volume loops (PVLs) in a pediatric heart transplant cohort. METHODS: Patients (age < 20 years) who underwent heart transplantation presenting for a clinically indicated catheterization were enrolled. PVLs were recorded using microconductance catheters (CD Leycom(®), Zoetermeer, Netherlands). Demographic data, serum B-type natriuretic peptide (BNP), time from transplant, ischemic time, presence of transplant coronary artery disease, donor-specific antibodies, and history of rejection were recorded at the time of catheterization...
October 31, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/29089339/wave-intensity-analysis-provides-novel-insights-into-pulmonary-arterial-hypertension-and-chronic-thromboembolic-pulmonary-hypertension
#20
Junjing Su, Charlotte Manisty, Kim H Parker, Ulf Simonsen, Jens Erik Nielsen-Kudsk, Soren Mellemkjaer, Susan Connolly, P Boon Lim, Zachary I Whinnett, Iqbal S Malik, Geoffrey Watson, Justin E Davies, Simon Gibbs, Alun D Hughes, Luke Howard
BACKGROUND: In contrast to systemic hypertension, the significance of arterial waves in pulmonary hypertension (PH) is not well understood. We hypothesized that arterial wave energy and wave reflection are augmented in PH and that wave behavior differs between patients with pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH). METHODS AND RESULTS: Right heart catheterization was performed using a pressure and Doppler flow sensor-tipped catheter to obtain simultaneous pressure and flow velocity measurements in the pulmonary artery...
October 31, 2017: Journal of the American Heart Association
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