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https://www.readbyqxmd.com/read/27904840/surgical-experience-on-chronic-constrictive-pericarditis-in-african-setting-review-of-35-years-experience-in-cote-d-ivoire
#1
Koffi Herve Yangni-Angate, Yves Tanauh, Christophe Meneas, Florent Diby, Anicet Adoubi, Manga Diomande
BACKGROUND: Surgical experience with chronic constrictive pericarditis (CCP) is rarely documented in Africa; the aim of this study is therefore to review our African experience with CCP from 1977 to 2012 in terms of clinical and surgical outcomes and risk factors of early death after pericardiectomy. METHODS: This retrospective study is related to 120 patients with CCP; there were 72 men and 48 women with an average age at 28.8±10.4 years standard deviation (SD) (8-51 years)...
October 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/27894069/association-between-left-atrial-dilatation-and-invasive-hemodynamics-at-rest-and-during-exercise-in-asymptomatic-aortic-stenosis
#2
Nicolaj Lyhne Christensen, Jordi Sanchez Dahl, Rasmus Carter-Storch, Rine Bakkestrøm, Kurt Jensen, Flemming Hald Steffensen, Eva Vad Søndergaard, Lars Videbæk, Jacob Eifer Møller
BACKGROUND: Transition from an asymptomatic to symptomatic state in severe aortic stenosis is often difficult to assess. Identification of a morphological sign of increased hemodynamic load may be important in asymptomatic aortic stenosis to identify patients at risk. METHODS AND RESULTS: Thirty-nine patients with asymptomatic severe aortic stenosis (aortic valve area <1 cm(2), peak jet velocity >3.5 m/s) underwent exercise testing with simultaneous invasive hemodynamic monitoring and Doppler echocardiography...
October 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27867292/new-impella-cardiac-power-device-used-in-patient-with-cardiogenic-shock-due-to-nonischemic-cardiomyopathy
#3
Marek Cena, Frances Karam, Rajesh Ramineni, Wissam Khalife, Alejandro Barbagelata
The new percutaneous Impella CP (Cardiac Power; Abiomed, Inc., Danvers, MA) was designed to provide a higher level of support than Impella 2.5 (Abiomed, Inc.). We present the first documented case of a patient that was transitioned from the Impella 2.5 to Impella CP. A 48-year-old male patient with no medical history was transferred to our institution with a one day history of worsening shortness of breath. The patient was unstable and found to have monomorphic ventricular tachycardia at 220 beats/min that was cardioverted to normal sinus rhythm...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/27773456/clinical-hemodynamic-evaluation-of-patients-implanted-with-a-fully-magnetically-levitated-left-ventricular-assist-device-heartmate-3
#4
Nir Uriel, Sirtaz Adatya, Jiří Malý, Eric Kruse, Daniel Rodgers, Gerald Heatley, Aleš Herman, Poornima Sood, Dominik Berliner, Johann Bauersachs, Axel Haverich, Michael Želízko, Jan D Schmitto, Ivan Netuka
BACKGROUND: The HeartMate 3 (HM3) is a Conformiteé Européenne (CE) mark-approved left ventricular assist device (LVAD) with a fully magnetically levitated rotor with features consisting of a wide range of operational speeds, wide flow paths and an artificial pulse. We performed a hemodynamic and echocardiographic evaluation of patients implanted with the HM3 LVAD to assess the speed range for optimal hemodynamic support. METHODS: Sixteen HM3 patients underwent pump speed ramp tests with right heart catheterization (including central venous pressure [CVP], pulmonary artery pressure, pulmonary capillary wedge pressure [PCWP] and blood pressure [BP]) and 3-dimensional echocardiography (3DE)...
July 17, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/27749316/comparing-the-effectiveness-of-an-axial-and-a-centrifugal-left-ventricular-assist-device-in-ventricular-unloading
#5
David M Turer, Kelly L Koch, Todd M Koelling, Audrey H Wu, Francis D Pagani, Jonathan W Haft
Centrifugal (CFG) and axial flow (AX) left ventricular assist devices have different hydrodynamic properties that may impact the effectiveness of left ventricular unloading. We sought to determine whether patients implanted with the HeartWare HVAD (CFG) and HeartMate II (AX) had a similar degree of hemodynamic support by comparing parameters measured using echocardiography and right heart catheterization. Using our prospectively collected database, we identified 268 patients implanted with the AX and 93 with the CFG...
November 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/27739163/interpreting-measurements-of-cardiac-function-using-vendor-independent-speckle-tracking-echocardiography-in-children-a-prospective-blinded-comparison-with-catheter-derived-measurements
#6
Suma P Goudar, G Hamilton Baker, Shahryar M Chowdhury, Kimberly J Reid, Girish Shirali, Mark A Scheurer
BACKGROUND: Adult studies demonstrate that echocardiographic measurements of cardiac function using speckle tracking correlate with invasive measurements, but such data in the pediatric population are sparse. Our aim was to compare speckle-derived measures of cardiac function to measurements routinely obtained by cardiac catheterization in children. METHODS: Echocardiograms were performed on the day of cardiac catheterization. Using Tomtec 2D Cardiac Performance Analysis, longitudinal strain (LS), longitudinal strain rate (LSR), early diastolic LSR, and ejection fraction (EF) for the right and left ventricle (RV and LV) were calculated via speckle tracking...
December 2016: Echocardiography
https://www.readbyqxmd.com/read/27621775/noninvasive-model-including-right-ventricular-speckle-tracking-for-the-evaluation-of-pulmonary-hypertension
#7
Yossra Mahran, Robert Schueler, Marcel Weber, Carmen Pizarro, Georg Nickenig, Dirk Skowasch, Christoph Hammerstingl
AIM: To find parameters from transthorathic echocardiography (TTE) including speckle-tracking (ST) analysis of the right ventricle (RV) to identify precapillary pulmonary hypertension (PH). METHODS: Forty-four patients with suspected PH undergoing right heart catheterization (RHC) were consecutively included (mean age 63.1 ± 14 years, 61% male gender). All patients underwent standardized TTE including ST analysis of the RV. Based on the subsequent TTE-derived measurements, the presence of PH was assessed: Left ventricular ejection fraction (LVEF) was calculated by Simpsons rule from 4Ch...
August 26, 2016: World Journal of Cardiology
https://www.readbyqxmd.com/read/27580106/effects-of-experimental-cardiac-volume-loading-on-left-atrial-phasic-function-in-healthy-dogs
#8
Tatsuyuki Osuga, Kensuke Nakamura, Tomoya Morita, Khoirun Nisa, Nozomu Yokoyama, Noboru Sasaki, Keitaro Morishita, Hiroshi Ohta, Mitsuyoshi Takiguchi
OBJECTIVE To elucidate the relationship between acute volume overload and left atrial phasic function in healthy dogs. ANIMALS 6 healthy Beagles. PROCEDURES Dogs were anesthetized. A Swan-Ganz catheter was placed to measure mean pulmonary capillary wedge pressure (PCWP). Cardiac preload was increased by IV infusion with lactated Ringer solution at 150 mL/kg/h for 90 minutes. Transthoracic echocardiography was performed before (baseline) and at 15, 30, 45, 60, 75, and 90 minutes after volume loading began. At each echocardiographic assessment point, apical 4-chamber images were recorded and analyzed to derive time-left atrial area curves...
September 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27568118/the-functional-significance-of-paradoxical%C3%A2-low-gradient-aortic%C3%A2-valve%C3%A2-stenosis-hemodynamic-findings-during-cardiopulmonary-exercise%C3%A2-testing
#9
Candelas Pérez Del Villar, Raquel Yotti, María Ángeles Espinosa, Enrique Gutiérrez-Ibañes, Alicia Barrio, María José Lorenzo, Pedro Luis Sánchez Fernández, Yolanda Benito, Raquel Prieto, Esther Pérez David, Pablo Martínez-Legazpi, Francisco Fernández-Avilés, Javier Bermejo
OBJECTIVES: The goal of this study was to determine the functional impact of paradoxical low-gradient aortic stenosis (PLGAS) and clarify whether the relevance of the valvular obstruction is related to baseline flow. BACKGROUND: Establishing the significance of PLGAS is particularly challenging. METHODS: Twenty symptomatic patients (77 ± 6 years of age; 17 female subjects) with PLGAS (mean gradient 28 ± 6 mm Hg; aortic valve area 0.8 ± 0...
August 20, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27488283/right-heart-hemodynamics-in-pulmonary-hypertension%C3%A3-an-echocardiography-and-catheterization-study
#10
Stéphane Doutreleau, Matthieu Canuet, Irina Enache, Paola Di Marco, Evelyne Lonsdorfer, Monique Oswald-Mammoser, Anne Charloux
BACKGROUND: Echocardiography (ECHO) plays a key role in both the diagnosis and prognosis of pulmonary hypertension (PH). Many equations have been published to assess right heart hemodynamics using ECHO. The objective of this study was to test the accuracy and precision of different echocardiographic equations in comparison with the right heart catheterization. METHODS AND RESULTS: Complete right heart hemodynamic assessments were prospectively obtained from 115 individuals (mean age 66±1 years; 57 males) who had known or suspected PH...
August 25, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27474338/usefulness-of-the-sum-of-pulmonary-capillary-wedge-pressure-and-right-atrial-pressure-as-a-congestion-index-that-prognosticates-heart-failure-survival-from-the-evaluation-study-of-congestive-heart-failure-and-pulmonary-artery-catheterization-effectiveness-trial
#11
Tony S Ma, David Paniagua, Ali E Denktas, Hani Jneid, Biswajit Kar, Wenyaw Chan, Biykem Bozkurt
In the Evaluation Study of Congestive Heart Failure and Pulmonary Artery Catheterization Effectiveness (ESCAPE) trial, use of a pulmonary artery catheter did not significantly affect advanced heart failure outcomes. However, the success of achieving the targeted hemodynamic goals of pulmonary capillary wedge pressure (PCWP) of 15 mm Hg and right atrial pressure (RAP) of 8 mm Hg and the association of these goals with clinical outcomes were not addressed. Furthermore, goals with 2 independent variables, PCWP and RAP, left room for uncertainties...
September 15, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27469015/right-ventricular-response-to-pulsatile-load-is-associated-with-early-right-heart-failure-and-mortality-after-left-ventricular-assist-device
#12
E Wilson Grandin, Payman Zamani, Jeremy A Mazurek, Gregory S Troutman, Edo Y Birati, Esther Vorovich, Julio A Chirinos, Ryan J Tedford, Kenneth B Margulies, Pavan Atluri, J Eduardo Rame
BACKGROUND: Right ventricular (RV) adaptation to afterload is crucial for patients undergoing continuous-flow left ventricular assist device (cf-LVAD) implantation. We hypothesized that stratifying patients by RV pulsatile load, using pulmonary arterial compliance (PAC), and RV response to load, using the ratio of central venous to pulmonary capillary wedge pressure (CVP:PCWP), would identify patients at high risk for early right heart failure (RHF) and 6-month mortality after cf-LVAD...
June 24, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/27458234/inhaled-sodium-nitrite-improves-rest-and-exercise-hemodynamics-in-heart-failure-with-preserved-ejection-fraction
#13
Barry A Borlaug, Vojtech Melenovsky, Katlyn E Koepp
RATIONALE: Abnormalities in nitric oxide signaling play a pivotal role in heart failure with preserved ejection fraction (HFpEF). Intravenous sodium nitrite, which is converted to nitric oxide in vivo, improves hemodynamics in HFpEF, but its use is limited by the need for parenteral administration. Nitrite can also be administered using a novel, portable micronebulizer system suitable for chronic use. OBJECTIVE: Determine whether inhaled nitrite improves hemodynamics in HFpEF...
September 16, 2016: Circulation Research
https://www.readbyqxmd.com/read/27400316/longitudinal-bnp-follow-up-as-a-marker-of-treatment-response-in-acute-heart-failure-relationship-with-objective-markers-of-decongestion
#14
Hesham R Omar, Maya Guglin
INTRODUCTION: Results of studies that examined the value of B-type natriuretic peptide (BNP) reduction as a marker of decongestion have been inconsistent. We investigated whether longitudinal admission-to-discharge BNP reduction can be used to monitor decongestion during acute heart failure (HF). METHODS: We used the ESCAPE trial data to study the relationship between the magnitude of BNP reduction and various clinical and objective markers of decongestion. RESULTS: Admission-to-discharge reduction in BNP was recorded in 245 patients who were divided into tertiles (tertile 1 had BNP reduction<27pg/mL, tertile 2 had BNP reduction 27-334pg/mL and tertile 3 had BNP reduction>334pg/mL)...
October 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27382090/baseline-hemodynamics-and-response-to-contrast-media-during-diagnostic-cardiac-catheterization-predict-adverse-events-in-heart-failure-patients
#15
Scott J Denardo, David M Vock, Carsten M Schmalfuss, Gregory D Young, James E Tcheng, Christopher M O'Connor
BACKGROUND: Contrast media administered during cardiac catheterization can affect hemodynamic variables. However, little is documented about the effects of contrast on hemodynamics in heart failure patients or the prognostic value of baseline and changes in hemodynamics for predicting subsequent adverse events. METHODS AND RESULTS: In this prospective study of 150 heart failure patients, we measured hemodynamics at baseline and after administration of iodixanol or iopamidol contrast...
July 2016: Circulation. Heart Failure
https://www.readbyqxmd.com/read/27209264/semi-automated-quantification-of-lung-density-on-chest-ct-used-as-a-predictive-biomarker-of-pulmonary-venous-hypertension
#16
Kathryn E Dean, Fay Lin, Polydoros N Kampaktsis, M Patricia George, Ashley Giambrone, Adrienne B Coya, Krishna Juluru
RATIONALE AND OBJECTIVES: We sought to determine if lung densities derived from computed tomography scans could be used to identify patients with pulmonary venous hypertension (Group II pulmonary hypertension [PH]), and to compare the performance of this metric with previously described metrics. MATERIALS AND METHODS: Patients were retrospectively included from a single-center cohort of patients with aortic stenosis being evaluated for transcatheter aortic valve replacement from April 2009 to July 2014...
August 2016: Academic Radiology
https://www.readbyqxmd.com/read/27187888/cardiac-index-declines-during-long-term-left-ventricular-device-support
#17
Rohan J Kalathiya, Brian A Houston, Jordan M Chaisson, Joshua C Grimm, Gerin R Stevens, Christopher M Sciortino, Ashish S Shah, Glenn J R Whitman, Stuart D Russell, Ryan J Tedford
To investigate longitudinal trends in valvular and ventricular function with long-term left ventricular assist device (LVAD) therapy, we analyzed hemodynamic and echocardiographic data of patients with at least 2 years of continuous LVAD support. All 130 patients who underwent HeartMate II implantation at our institution between 2005 and 2012 were reviewed. Twenty patients had hemodynamic and echocardiographic evaluations in both the early (0-6 months) and late (2-3 years) postoperative period. Patients on inotropic therapy or temporary mechanical support were excluded...
December 2016: Artificial Organs
https://www.readbyqxmd.com/read/27162614/unexplained-exertional-dyspnea-caused-by-low-ventricular-filling-pressures-results-from-clinical-invasive-cardiopulmonary-exercise-testing
#18
William M Oldham, Gregory D Lewis, Alexander R Opotowsky, Aaron B Waxman, David M Systrom
To determine whether low ventricular filling pressures are a clinically relevant etiology of unexplained dyspnea on exertion, a database of 619 consecutive, clinically indicated invasive cardiopulmonary exercise tests (iCPETs) was reviewed to identify patients with low maximum aerobic capacity (V̇o2max) due to inadequate peak cardiac output (Qtmax) with normal biventricular ejection fractions and without pulmonary hypertension (impaired: n = 49, V̇o2max = 53% predicted [interquartile range (IQR): 47%-64%], Qtmax = 72% predicted [62%-76%])...
March 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/27144613/left-atrial-intrinsic-strain-rate-correcting-for-pulmonary-wedge-pressure-is-accurate-in-estimating-pulmonary-vascular-resistance-in-breathless-patients
#19
Erik Tossavainen, Michael Y Henein, Christer Grönlund, Per Lindqvist
OBJECTIVES: We hypothesized that left atrial deformation during atrial systole (LASRa) correlates with pulmonary capillary wedge pressure (PCWP), thus enabling echo-derived pulmonary vascular resistance (PVR) estimation in a wide range of different subsets of patients. BACKGROUND: Various etiologies of pulmonary hypertension (PH) have different mechanisms and treatments for breathlessness. Irrespective of the location of the underlying pulmonary vascular pathology, pre- or postcapillary, the resulting PH is fairly easy to assess by Doppler echocardiography, but PVR remains a challenge...
August 2016: Echocardiography
https://www.readbyqxmd.com/read/27133321/correlation-of-pulmonary-capillary-wedge-pressure-with-left-atrial-pressure-in-patients-with-mitral-stenosis-undergoing-balloon-valvotomy
#20
Desabandhu Vinayakumar, Uppalakal Bijilesh, C G Sajeev, Gopalan Nair Rajesh, Cicy Bastion, P Kadermuneer, V Haridasan, Dolly Mathew, Biju George, M N Krishnan
AIMS: We sought to evaluate the correlation between PCWP and LAP and to compare transmitral gradients obtained with LAP and PCWP in MS, before and after balloon mitral valvotomy (BMV). METHODS: Consecutive patients with MS for BMV were included in this prospective cohort study. Simultaneous PCWP and LAP were recorded followed by simultaneous left atrium-left ventricular (LA-LV) and pulmonary capillary wedge pressure-left ventricular (PCWP-LV) gradients before and after BMV...
March 2016: Indian Heart Journal
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