James B. Seward
Mayo Clinic
Internal medicineRadiologySurgeryDoppler effectCardiologyHemodynamicsCardiac catheterizationMitral valveHeart failureVentricleAtrial fibrillationHeart diseaseRegurgitation (circulation)Doppler echocardiographyMitral regurgitationIn patientMyocardial infarctionDiastoleMedicineEjection fraction
569Publications
137H-index
52.9kCitations
Publications 576
Newest
OBJECTIVE: To evaluate whether global peak systolic strain (PSS) and peak systolic strain rate (PSSR) derived from velocity vector imaging (VVI) allow early recognition of regional and global right ventricular (RV) dysfunction and the impact of this on left ventricular (LV) function in patients with pulmonary hypertension (PHT). BACKGROUND: RV function is an important determinant of prognosis in patients with heart failure, pulmonary hypertension, heart transplant, and congenital heart diseases....
2 CitationsSource
#1Rowlens M. Melduni (Mayo Clinic)H-Index: 11
#2Hartzell V. Schaff (Mayo Clinic)H-Index: 131
Last. Samuel J. Asirvatham (Mayo Clinic)H-Index: 57
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Background: Prophylactic exclusion of the left atrial appendage (LAA) is often performed during cardiac surgery ostensibly to reduce the risk of stroke. However, the clinical impact of LAA closure in humans remains inconclusive. Methods: Of 10 633 adults who underwent coronary artery bypass grafting and valve surgery between January 2000 and December 2005, 9792 patients with complete baseline characteristics, surgery procedure, and follow-up data were included in this analysis. A propensity scor...
68 CitationsSource
2 CitationsSource
#1Rowlens M. Melduni (Mayo Clinic)H-Index: 11
#2Bernard J. Gersh (Mayo Clinic)H-Index: 163
Last. Hon-Chi Lee (Mayo Clinic)H-Index: 2
view all 14 authors...
Introduction: It remains unclear to what extent reduction in blood flow in the left atrial appendage (LAA) contributes to the risk of ischemic stroke in atrial fibrillation (AF). We sought to ident...
#1Rowlens M. Melduni (Mayo Clinic)H-Index: 11
#2Hon Chi Lee (Mayo Clinic)H-Index: 30
Last. Naser M. Ammash (Mayo Clinic)H-Index: 35
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Background Left atrial appendage emptying flow velocity (LAAEV) depends largely on left atrioventricular compliance and may play a role in mediating the perpetuation of atrial fibrillation (AF) and AF-related outcomes. Methods We identified 3,251 consecutive patients with sustained AF undergoing first-time successful transesophageal echocardiography (TEE)-guided electrical cardioversion who were enrolled in a prospective registry between May 2000 and March 2012. Left atrial appendage emptying fl...
14 CitationsSource
#1Rowlens M. Melduni (Mayo Clinic)H-Index: 11
#2Hartzell V. Schaff (Mayo Clinic)H-Index: 131
Last. Bernard J. Gersh (Mayo Clinic)H-Index: 163
view all 7 authors...
Background Postoperative atrial fibrillation (POAF) is a common complication after cardiac surgery. Data are lacking on the long-term prognostic implications of POAF. We hypothesized that POAF, which reflects underlying cardiovascular pathophysiologic substrate, is a predictive marker of late AF and long-term mortality. Methods We identified 603 Olmsted County, Minnesota, residents without prior documented history of AF who underwent coronary artery bypass graft and/or valve surgery from 2000 to...
42 CitationsSource
#1Jae K. OhH-Index: 119
#2James B. SewardH-Index: 137
Last. A. Jamil TajikH-Index: 141
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Abbreviations Commonly Used in Text, Tables, and Figures How to Obtain a Good Echocardiography Examination: Ultrasound Physics, Technique, and Medical Knowledge Transthoracic Echocardiography: M-mode, Two-Dimensional, and Three-Dimensional Transesophageal and Intracardiac Echocardiography Jae K. Oh, Donald J. Hagler, Allison Cabalka, Guy S. Reeder, Frank Cetta, Jr., and James B. Seward Doppler Echocardiography and Color Flow Imaging: Comprehensive Noninvasive Hemodynamic Assessment Tissue Dopple...
373 Citations
#1Rowlens M. Melduni (Mayo Clinic)H-Index: 11
#2Eloka Ikebudu (Mayo Clinic)
Last. Bernard J. Gersh (Mayo Clinic)H-Index: 163
view all 9 authors...
Prophylactic exclusion of the LAA is often performed during cardiac surgery to reduce the risk of stroke in patients with AF. However, the clinical impact and efficacy of LAA closure for stroke protection in humans remains inconclusive. We conducted a retrospective study of 9,833 adults, mean age
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PURPOSE OF REVIEW: This article provides a state-of-the-art perspective of left atrial anatomy and physiology. RECENT FINDINGS: Left atrial structure and function can be used to reflect and quantify the physiologic state of complex disease processes. No single left atrial anatomic, functional, or clinical feature will adequately define a complex system. The state of combined left atrial structural and functional features (i.e., systems biology) defines disease clustering (i.e., commonality of un...
8 CitationsSource
#1Rowlens M. Melduni (Mayo Clinic)H-Index: 11
#2Marwan Wiggins (Mayo Clinic)H-Index: 1
Last. Bernard J. Gersh (Mayo Clinic)H-Index: 163
view all 7 authors...
1 CitationsSource