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https://www.readbyqxmd.com/read/29454583/post-operative-ventricular-flow-dynamics-following-atrioventricular-valve-surgical-and-device-therapies-a-review
#1
REVIEW
Yen Ngoc Nguyen, Munirah Ismail, Foad Kabinejadian, Edgar Lik Wui Tay, Hwa Liang Leo
Intra-ventricular flow dynamics has recently emerged as an important evaluation and diagnosis tool in different cardiovascular conditions. The formation of vortex pattern during the cardiac cycle has been suggested to play important epigenetic and energy-modulation roles in cardiac remodelling, adaptations and mal-adaptations. In this new perspective, flow alterations due to different cardiovascular procedures can affect the long-term outcome of those procedures. Especially, repairs and replacements performed on atrioventricular valves are likely to exert direct impact on intra-ventricular flow pattern...
February 14, 2018: Medical Engineering & Physics
https://www.readbyqxmd.com/read/29452875/use-of-expanders-for-bowel-protection-in-pediatric-pelvic-tumor-radiation-therapy-15-years-of-tolerance-results
#2
Fernand Missohou
PURPOSE: Bowel is often the dose-limiting organ in curative pelvic irradiation because of radiation enteritis when dose exceeds 40 to 45 Gy. To limit radiation enteritis, a silicone tissue-expander prothesis (STEP) connected to a subcutaneous self-sealing valve was prospectively used in children undergoing pelvic or abdominal radiation therapy. This study reports the 15-year long-term outcomes of this prospective series. METHODS AND MATERIALS: Between 1987 and 2008, 29 children from 3 Paris institutions received pelvic radiation therapy after surgical placement of a STEP in the pelvis...
December 14, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29451664/update-on-antiphospholipid-antibody-syndrome
#3
Michelle Remião Ugolini Lopes, Adriana Danowski, Andreas Funke, Jozelia Rêgo, Roger Levy, Danieli Castro Oliveira de Andrade
Antiphospholipid syndrome (APS) is an autoimmune disease characterized by antiphospholipid antibodies (aPL) associated with thrombosis and/or pregnancy morbidity. Most APS events are directly related to thrombotic events, which may affect small, medium or large vessels. Other clinical features like thrombocytopenia, nephropathy, cardiac valve disease, cognitive dysfunction and skin ulcers (called non-criteria manifestations) add significant morbidity to this syndrome and represent clinical situations that are challenging...
November 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/29445273/new-bacterial-growth-in-bronchial-secretions-after-bronchoscopic-valve-implantation
#4
Nilab Sarmand, Daniela Gompelmann, Konstantina Kontogianni, Markus Polke, Felix Jf Herth, Ralf Eberhardt
Background: Bronchoscopic valve implantation is an established treatment in selected patients with severe lung emphysema. There is evidence in literature of increased bacterial colonization of various implants. So far, it is unclear if an increased bacterial colonization can also be observed after endoscopic valve therapy. Methods: Retrospective analysis of patients with examination of the bronchial secretions for presence or change of bacterial growth before and after valve implantation...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29443370/beneficial-effects-of-high-density-lipoproteins-on-acquired-von-willebrand-syndrome-in-aortic-valve-stenosis
#5
C Gebhard, F Maafi, B E Stähli, A Bonnefoy, C E Gebhard, W Nachar, A Benjamim de Oliveira Moraes, M Mecteau, T Mihalache-Avram, V Lavoie, A E Kernaleguen, Y Shi, D Busseuil, M Chabot-Blanchet, L P Perrault, D Rhainds, E Rhéaume, J C Tardif
BACKGROUND: Infusions of apolipoprotein A-I (apoA-I), the major protein component of high-density lipoproteins (HDL), result in aortic valve stenosis (AVS) regression in experimental models. Severe AVS can be complicated by acquired von Willebrand syndrome, a haemorrhagic disorder associated with loss of high-molecular-weight von Willebrand factor (vWF) multimers (HMWM), the latter being a consequence of increased shear stress and enhanced vWF-cleaving protease (ADAMTS-13) activity. Although antithrombotic actions of HDL have been described, its effects on ADAMTS-13 and vWF in AVS are unknown...
February 2018: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29442998/acute-kidney-injury-following-percutaneous-edge-to-edge-vs-minimally-invasive-surgical-mitral-valve-repair-incidence-predictors-and-prognostic-value
#6
Maria Isabel Körber, Maximilian Scherner, Kathrin Kuhr, Hugai Kasisada, Svenja Ney, Roman Pfister, Parwis Rahmanian, Jens Wippermann, Thorsten Wahlers, Stephan Baldus, Volker Rudolph
AIMS: This study sought to determine the incidence and identify predictors of acute kidney injury (AKI) following percutaneous edge-to-edge mitral valve repair (PMVR) and compare the risk of AKI between PMVR and surgical mitral valve repair (SMVR). METHODS AND RESULTS: We performed a single-centre analysis of 378 patients receiving treatment for mitral regurgitation (196 consecutive patients undergoing PMVR and 182 patients undergoing SMVR). The incidence of AKI (any stage according to KDIGO) following PMVR was 17...
October 10, 2017: EuroIntervention
https://www.readbyqxmd.com/read/29442199/multisite-cardiac-resynchronization-therapy-for-traditional-and-non-traditional-indications
#7
Avishag Laish-Farkash, Sharon Bruoha, Vladimir Khalameizer, Chaim Yosefy, Yoav Michowitz, Mahmoud Suleiman, Amos Katz
PURPOSE: Multisite cardiac resynchronization therapy (MSCRT) with dual-vein left ventricular (LV) pacing has theoretical advantages over conventional CRT in faster and more physiological LV activation. We aimed to define indications, feasibility, safety, acute, and long-term results of MSCRT. METHODS: All patients implanted with MSCRT during 2008-2014 in a single center were reviewed and analyzed. RESULTS: Thirty-nine patients (90% CRT-defibrillators, 64 ± 9 years, 85% male, 74% ischemic etiology) were included...
February 13, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29440884/the-minimal-important-difference-for-target-lobe-volume-reduction-after-endoscopic-valve-therapy
#8
D Gompelmann, K Kontogianni, M Schuhmann, R Eberhardt, C P Heussel, F J Herth
Objective: Endoscopic valve therapy aims at target lobe volume reduction (TLVR) that is associated with improved lung function, exercise tolerance and quality of life in emphysema patients. So far, a TLVR of >350 mL was considered to be indicative of a positive response to treatment. However, it is not really known what amount of TLVR is crucial following valve implantation. Patients and methods: TLVR, forced expiratory volume in 1 second (FEV 1 ), residual volume (RV) and 6-minute walk distance (6-MWD) were assessed before and 3 months after valve implantation in 119 patients...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29440192/impact-of-anticoagulation-therapy-on-valve-haemodynamic-deterioration-following-transcatheter-aortic-valve-replacement
#9
María Del Trigo, Antonio J Muñoz-García, Azeem Latib, Vincent Auffret, Harindra C Wijeysundera, Luis Nombela-Franco, Enrique Gutierrez, Asim N Cheema, Vicenç Serra, Ignacio J Amat-Santos, Joelle Kefer, Luis Miguel Benitez, Florence Leclercq, Antonio Mangieri, Hervé Le Breton, Pilar Jiménez-Quevedo, Bruno Garcia Del Blanco, Antonio Dager, Omar Abdul-Jawad Altisent, Rishi Puri, Philippe Pibarot, Josep Rodés-Cabau
OBJECTIVE: To evaluate the changes in transvalvular gradients and the incidence of valve haemodynamic deterioration (VHD) following transcatheter aortic valve replacement (TAVR), according to use of anticoagulation therapy. METHODS AND RESULTS: This multicentre study included 2466 patients (46% men; mean age 81±7 years) who underwent TAVR with echocardiography performed at 12-month follow-up. Anticoagulation therapy was used in 707 patients (28.7%) following TAVR (AC group)...
February 13, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29440136/problems-in-anticoagulation-of-a-patient-with-antibiotic-treatment-for-endocarditis-interaction-of-rifampicin-and-vitamin-k-antagonists
#10
Lars Mizera, Tobias Geisler, Klaus Mörike, Meinrad Gawaz, Martin Steeg
The cytochrome P450 is a superfamily of isoenzymes that are responsible for the metabolism of many drugs. Significant changes in pharmacokinetics and drug interactions may be due to induction of hepatic cytochrome P450 enzymes. Rifampicin is a common inducer of CYP3A4. We report a case of a 57-year-old woman who was suspected for endocarditis and therefore treated with rifampicin. Due to previous mechanical aortic valve replacement, she also received phenprocoumon for anticoagulation. Although continuing anticoagulant therapy, antibiotic coadministration led to normal international normalised ratio (INR) level...
February 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29435997/coronary-venous-angioplasty-to-facilitate-trans-venous-left-ventricular-lead-placement-a-single-center-13-year-experience
#11
Aaron B Hesselson, Sandeep Duggal, Michael Rukavina, Peter L Gallagher, Gery F Tomassoni
BACKGROUND: Barriers to successful left ventricular lead placement within the coronary venous anatomy may include focal stenoses, thromboses, phrenic nerve stimulation, vessel tortuosity, small vessel caliber, non-excitable tissue and valve presence. A large series describing the utilization of coronary venous angioplasty (CVAP) for relief of these issues is absent in the literature. OBJECTIVE: We report our experience for all patients treated with CVAP in a single-center 13-year experience...
February 12, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29435772/heart-failure-interventions-targeting-impaired-left-ventricles-in-structural-heart-disease
#12
REVIEW
Mitsunobu Kitamura, Tobias Schmidt, Karl-Heinz Kuck, Christian Frerker
PURPOSE OF REVIEW: Interventional techniques have been developed for a wide spectrum of mechanisms of heart failure (HF), especially in valvular heart disease and cardiomyopathies (ischaemic cardiomyopathy and hypertrophic cardiomyopathy). In this article, we review recent reports on catheter interventions to treat patients with HF. RECENT FINDINGS: Direct modification using the Parachute device and the REVIVENT-TC device for patients with impaired left ventricle with large infarct scars improves geometry and haemodynamic efficiency, resulting in a reduction of HF symptoms...
February 12, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29434631/transcatheter-aortic-valve-replacement-and-stroke-a-comprehensive-review
#13
REVIEW
Periklis A Davlouros, Virginia C Mplani, Ioanna Koniari, Grigorios Tsigkas, George Hahalis
Transcatheter aortic valve implantation (TAVR) has emerged as an alternative, rapidly evolving treatment option for patients with severe aortic stenosis and high surgical risk. Stroke is a devastating complication being confined mainly in the periprocedural and 30-day period following TAVR, with a lower and relatively constant frequency thereafter. Early stroke is mainly due to debris embolization during the procedure, whereas later events are associated with patient specific factors. Despite the fact that the rate of clinical stroke has been constantly decreasing compared to initial TAVR experience, modern neuro-imaging with MRI suggests that new ischemic lesions post-TAVR are almost universal...
January 2018: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29434628/antithrombotic-therapy-in-tavi
#14
REVIEW
Manolis Vavuranakis, Konstantinos Kalogeras, Angelos Michail Kolokathis, Dimitrios Vrachatis, Nikolaos Magkoutis, Gerasimos Siasos, Euaggelos Oikonomou, Maria Kariori, Theodoros Papaioannou, Maria Lavda, Carmen Moldovan, Ourania Katsarou, Dimitrios Tousoulis
Transcatheter aortic valve implantation (TAVI) carries a significant thromboembolic and concomitant bleeding risk, not only during the procedure but also during the periprocedural period. Many issues concerning optimal antithrombotic therapy after TAVI are still under debate. In the present review, we aimed to identify all relevant studies evaluating antithrombotic therapeutic strategies in relation to clinical outcomes after the procedure. Four randomized control trials (RCT) were identified analyzing the post-TAVI antithrombotic strategy with all of them utilizing aspirin lifelong plus clopidogrel for 3-6 months...
January 2018: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29432364/per-ventricular-insertion-of-melody-valve-in-valve-in-the-neoaortic-position-in-a-single-ventricle-patient
#15
Nicholas S Clarke, Howaida El-Said, John J Lamberti, Raghav A Murthy
Percutaneous therapies for congenital heart disease have been evolving rapidly despite limited investment from industry. The Melody transcatheter pulmonary valve (Medtronic, Inc, Minneapolis, MN USA) replacement therapy represents an important advancement in this arena. It has been approved in the United States for use in the pulmonary position, on a Humanitarian Device Exemption status. Off-label use of the Melody transcatheter pulmonary valve has extended to the mitral, pulmonary, and aortic valves, especially in previously implanted valves with prosthetic valve degeneration...
February 9, 2018: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29426281/primary-percutaneous-coronary-intervention-during-st-elevation-myocardial-infarction-in-prosthetic-valve-endocarditis-a-case-report
#16
Alfonso Campanile, Guido Tavazzi, Francesco Caprioglio, Fausto Rigo
BACKGROUND: Infective endocarditis (IE) is still a condition with high mortality and morbidity, especially in the elderly, and in patients with prosthetic valves. The concept of "time-to-therapy" plays a key role for the prompt management of IE and related complications, and the currently available multimodality imaging may play a key role in this setting. Myocardial ischemia due to extrinsic coronary compression from an aortic abscess is an extremely rare condition where the optimal therapeutic strategy has not been defined yet...
February 9, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29408248/bilateral-opposing-loop-technique-b-o-l-t-for-securing-air-knots
#17
Laura M Seese, Faisal G Bakaeen, Ibrahim Sultan, Danny Chu
Incompletely seated knots (air knots) during surgical aortic valve replacement can be potentially difficult to repair in anatomically challenging areas around the aortic root. This is especially true with mechanical protheses as subvalvular areas are inaccessble once the valve is seated. In this report, we present a novel and simple technique of tightening air knots from within the aortic root without removing the prosthesis. The definitive surgical therapy for aortic valve disease has been in evolution since the advent of cardiopulmonary bypass and the development of aortic valve prostheses...
February 2, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29405554/six-month-outcome-after-transcatheter-edge-to-edge-repair-of-severe-tricuspid-regurgitation-in-patients-with-heart-failure
#18
Mathias Orban, Christian Besler, Daniel Braun, Michael Nabauer, Marion Zimmer, Martin Orban, Thilo Noack, Julinda Mehilli, Christian Hagl, Joerg Seeburger, Michael Borger, Axel Linke, Holger Thiele, Steffen Massberg, Joerg Ender, Philipp Lurz, Jörg Hausleiter
AIMS: Severe tricuspid regurgitation (TR) is common in patients with right-sided heart failure (HF) and causes substantial morbidity and mortality. Treatment options beyond medical therapy are limited for high-risk patients. Transcatheter edge-to-edge tricuspid valve (TV) repair showed procedural safety and short-term efficacy. Impact on mid-term outcome is unclear. This dual-centre observational study evaluates the mid-term safety, efficacy and clinical outcome after edge-to-edge TV repair for severe TR in patients with HF...
February 6, 2018: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29402418/description-of-a-method-to-obtain-complete-one-year-follow-up-in-the-society-of-thoracic-surgeons-american-college-of-cardiology-transcatheter-valve-therapy-registry
#19
Jordan Wooley, Holly Neatherlin, Cecile Mahoney, John J Squiers, Deborah Tabachnick, Mitta Suresh, Eleanor Huff, Sukhdeep S Basra, J Michael DiMaio, David L Brown, Michael J Mack, Elizabeth M Holper
The Centers for Medicare and Medicaid Services National Coverage Determination requires centers performing transcatheter aortic valve implantation (TAVI) to report clinical outcomes up to 1 year. Many sites encounter challenges in obtaining complete 1-year follow-up. We report our process to address this challenge. A multidisciplinary process involving clinical personnel, data and quality managers, and research coordinators was initiated to collect TAVI data at baseline, 30 days, and 1 year. This process included (1) planned clinical follow-up of all patients at 30 days and 1 year; (2) query of health-care system-wide integrated data warehouse (IDW) to ascertain last date of clinical contact within the system for all patients; (3) online obituary search, cross-referencing for unique patient identifiers to determine if mortality occurred in remaining unknown patients; and (4) phone calls to remaining unknown patients or patients' families...
January 2, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29397929/analysis-of-patients-discharged-from-the-hospital-with-a-chest-tube-in-place
#20
J Matthew Reinersman, Mark S Allen, Shanda H Blackmon, Stephen D Cassivi, Francis C Nichols, Dennis A Wigle, K Robert Shen
BACKGROUND: Persistent air leak can complicate pulmonary resection, and one management option is dismissal with a chest tube in place. This study evaluated the rate of empyema and readmission after dismissal with a chest tube. METHODS: A retrospective review of our prospective database from January 2004 to December 2013 identified 236 patients who were discharged from our institution with an indwelling chest tube and attached one-way valve for air leak. Empyema was defined by leukocytosis or fever and undrained effusion on chest roentgenogram or computed tomography...
February 1, 2018: Annals of Thoracic Surgery
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