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Prem Shekar

Concepts (334)

Concepts are derived automatically from a person's publications.
Concepts are listed by decreasing relevance which is based on many factors, including how many publications the person wrote about that topic, how long ago those publications were written, and how many publications other people have written on that same topic.


Name Number of Publications Most Recent Publication Publications by All Authors Concept Score Why?
Cardiac Surgical Procedures
25
2023
268
3.610
Why?
Heart Valve Prosthesis Implantation
24
2021
171
3.270
Why?
Heart Valve Diseases
12
2023
93
1.820
Why?
Aortic Valve
14
2021
181
1.670
Why?
Heart-Assist Devices
8
2019
158
1.390
Why?
Mitral Valve
10
2023
126
1.320
Why?
Postoperative Complications
19
2021
1314
1.250
Why?
Coronary Artery Bypass
14
2023
292
1.230
Why?
Mitral Valve Insufficiency
6
2021
98
0.990
Why?
Circulatory Arrest, Deep Hypothermia Induced
4
2014
5
0.980
Why?
Heart Valve Prosthesis
9
2021
106
0.910
Why?
Intraoperative Complications
4
2019
89
0.900
Why?
Aorta, Thoracic
4
2016
80
0.880
Why?
Cardiopulmonary Bypass
8
2014
58
0.800
Why?
Vascular Surgical Procedures
3
2015
240
0.800
Why?
Reoperation
12
2020
300
0.800
Why?
Aortic Valve Stenosis
7
2020
190
0.790
Why?
Hospital Mortality
12
2021
873
0.750
Why?
Retrospective Studies
48
2021
6823
0.720
Why?
Treatment Outcome
41
2023
5773
0.700
Why?
Heart Failure
6
2019
949
0.690
Why?
Sternum
6
2021
29
0.690
Why?
Aged
57
2021
14879
0.670
Why?
Prosthesis Failure
6
2021
78
0.650
Why?
Middle Aged
58
2021
18163
0.630
Why?
Bioprosthesis
6
2021
38
0.620
Why?
Prosthesis Design
10
2021
218
0.620
Why?
Risk Assessment
12
2021
2091
0.610
Why?
Aortic Valve Insufficiency
2
2012
42
0.610
Why?
Sternotomy
4
2021
12
0.600
Why?
Minimally Invasive Surgical Procedures
8
2020
126
0.590
Why?
Humans
91
2023
64818
0.590
Why?
Intra-Aortic Balloon Pumping
3
2014
19
0.580
Why?
Male
69
2021
30880
0.580
Why?
Calcinosis
1
2019
84
0.570
Why?
Female
71
2021
33854
0.560
Why?
Echocardiography, Transesophageal
8
2021
117
0.560
Why?
Pulmonary Embolism
5
2018
196
0.530
Why?
Aorta
4
2018
108
0.520
Why?
Blood Vessel Prosthesis Implantation
3
2020
276
0.490
Why?
Aortic Diseases
3
2020
65
0.490
Why?
Aged, 80 and over
29
2021
5583
0.490
Why?
Jehovah's Witnesses
1
2015
19
0.460
Why?
Ventricular Dysfunction, Left
2
2007
168
0.450
Why?
Adult
32
2022
17271
0.440
Why?
Heart, Artificial
1
2014
2
0.440
Why?
Cerebrovascular Circulation
2
2014
183
0.440
Why?
Coronary Artery Disease
4
2020
322
0.430
Why?
Perfusion
1
2014
75
0.420
Why?
Atherosclerosis
2
2014
160
0.420
Why?
Risk Factors
26
2021
5401
0.410
Why?
Follow-Up Studies
16
2021
2482
0.400
Why?
Extracorporeal Membrane Oxygenation
1
2014
66
0.400
Why?
Transcatheter Aortic Valve Replacement
4
2020
110
0.390
Why?
Proportional Hazards Models
12
2021
735
0.380
Why?
Embolectomy
4
2018
15
0.380
Why?
Survival Rate
8
2019
843
0.340
Why?
Acute Kidney Injury
4
2018
142
0.340
Why?
Heart
2
2022
297
0.330
Why?
Aortic Aneurysm
5
2020
81
0.320
Why?
Ventricular Function, Left
1
2012
278
0.320
Why?
Time Factors
16
2019
3750
0.310
Why?
Heart Diseases
2
2019
222
0.310
Why?
Boston
8
2018
257
0.300
Why?
Atrial Fibrillation
4
2022
871
0.300
Why?
Heart Transplantation
4
2019
180
0.290
Why?
Catheterization
2
2006
110
0.280
Why?
Surgical Wound Infection
2
2021
125
0.280
Why?
Lung Diseases, Interstitial
2
2020
144
0.270
Why?
Coronary Vessels
2
2008
123
0.270
Why?
Cardiovascular Diseases
1
2015
861
0.270
Why?
Hemoglobinopathies
1
2007
7
0.260
Why?
Hemoglobins, Abnormal
1
2007
6
0.260
Why?
Cardiac Valve Annuloplasty
2
2020
6
0.260
Why?
Angioplasty, Balloon, Coronary
2
2004
171
0.250
Why?
Renal Insufficiency, Chronic
2
2019
147
0.250
Why?
Propensity Score
5
2019
189
0.250
Why?
Kaplan-Meier Estimate
10
2018
413
0.250
Why?
Ticlopidine
3
2015
47
0.240
Why?
Myocardial Ischemia
3
2021
117
0.240
Why?
Blood Pressure Monitors
1
2005
3
0.240
Why?
Hypoxia, Brain
1
2005
10
0.230
Why?
Patient Discharge
3
2017
518
0.230
Why?
Platelet Function Tests
2
2015
11
0.230
Why?
Receptors, Purinergic P2Y12
2
2015
7
0.230
Why?
Age Factors
10
2018
1579
0.230
Why?
Purinergic P2Y Receptor Antagonists
2
2015
15
0.230
Why?
Incidence
6
2021
1411
0.220
Why?
Atherectomy
1
2004
8
0.220
Why?
Length of Stay
6
2021
823
0.220
Why?
Thrombectomy
1
2007
253
0.220
Why?
Atherectomy, Coronary
1
2004
12
0.220
Why?
Heart Neoplasms
3
2012
36
0.220
Why?
Echocardiography
4
2021
510
0.210
Why?
Platelet Aggregation Inhibitors
3
2015
233
0.210
Why?
Blood Platelets
2
2015
108
0.210
Why?
Hematoma
1
2004
82
0.210
Why?
Analgesics, Opioid
2
2019
525
0.210
Why?
Cardiomyopathy, Hypertrophic
2
2023
796
0.200
Why?
Point-of-Care Systems
2
2015
126
0.200
Why?
Hemorrhage
2
2015
278
0.200
Why?
Blood Pressure
1
2005
524
0.190
Why?
Vascular Calcification
2
2014
26
0.190
Why?
Heart Ventricles
2
2016
266
0.190
Why?
Aortic Aneurysm, Abdominal
1
2006
223
0.190
Why?
Severity of Illness Index
5
2020
1555
0.190
Why?
Negative-Pressure Wound Therapy
1
2021
12
0.180
Why?
Opioid-Related Disorders
2
2019
524
0.180
Why?
Ventricular Outflow Obstruction
1
2022
118
0.170
Why?
Mammary Arteries
1
2020
11
0.170
Why?
Suture Techniques
2
2020
94
0.170
Why?
Endarterectomy
2
2012
16
0.160
Why?
Health Facility Size
1
2020
16
0.160
Why?
Hospital Bed Capacity
1
2020
27
0.160
Why?
Thoracic Surgery
1
2021
80
0.160
Why?
Vancomycin
2
2018
39
0.160
Why?
Gene Expression Regulation
2
2017
1629
0.160
Why?
Forecasting
1
2021
230
0.160
Why?
Thoracotomy
1
2020
47
0.150
Why?
Tricuspid Valve Insufficiency
1
2020
23
0.150
Why?
Pulsatile Flow
1
2019
10
0.150
Why?
Glucuronidase
1
2019
25
0.150
Why?
Heart Atria
3
2017
137
0.150
Why?
Transplant Recipients
1
2019
31
0.150
Why?
Heart Valves
2
2017
26
0.150
Why?
Transforming Growth Factor beta1
1
2019
61
0.150
Why?
Thrombolytic Therapy
2
2018
195
0.150
Why?
Medical Staff, Hospital
1
2019
59
0.150
Why?
Contraindications
3
2015
52
0.150
Why?
Wnt Signaling Pathway
1
2019
86
0.140
Why?
Patient Selection
5
2014
483
0.140
Why?
Wound Infection
1
2018
29
0.140
Why?
Postoperative Hemorrhage
1
2018
40
0.140
Why?
Databases, Factual
5
2020
881
0.140
Why?
Heart Arrest, Induced
2
2008
13
0.130
Why?
United States
6
2020
8058
0.130
Why?
Myocardium
1
2019
301
0.130
Why?
Hodgkin Disease
1
2017
54
0.130
Why?
Sinus of Valsalva
1
2016
7
0.130
Why?
Quantitative Trait Loci
1
2017
81
0.130
Why?
Radiation Injuries
1
2017
66
0.130
Why?
Logistic Models
6
2018
1267
0.120
Why?
Cohort Studies
7
2019
2607
0.120
Why?
Registries
3
2016
902
0.120
Why?
Aortic Aneurysm, Thoracic
1
2016
108
0.120
Why?
Cardiac Catheterization
2
2010
292
0.120
Why?
Wound Healing
1
2016
193
0.110
Why?
Alleles
1
2016
452
0.110
Why?
Quality of Health Care
1
2019
526
0.110
Why?
Ultrasonography
3
2012
489
0.110
Why?
Genotype
1
2016
672
0.110
Why?
Polymorphism, Single Nucleotide
1
2017
509
0.110
Why?
Clinical Competence
1
2019
725
0.110
Why?
Shock, Cardiogenic
2
2005
108
0.100
Why?
Prognosis
5
2018
1774
0.100
Why?
Young Adult
5
2020
4782
0.100
Why?
Tomography, X-Ray Computed
5
2015
1653
0.100
Why?
Quality of Life
2
2011
1254
0.100
Why?
Genetic Predisposition to Disease
1
2017
731
0.100
Why?
Survival Analysis
4
2018
575
0.100
Why?
Lupus Erythematosus, Discoid
1
2012
7
0.090
Why?
Mitral Valve Annuloplasty
1
2012
17
0.090
Why?
Surgical Wound Dehiscence
1
2012
16
0.090
Why?
Constriction
1
2012
8
0.090
Why?
Pulmonary Edema
1
2012
29
0.090
Why?
Coronary Circulation
1
2012
55
0.090
Why?
Heparin
2
2010
118
0.090
Why?
Hemangiosarcoma
1
2012
24
0.090
Why?
Predictive Value of Tests
4
2017
1103
0.090
Why?
Myxoma
1
2011
14
0.090
Why?
Perioperative Care
1
2012
86
0.080
Why?
Embolism, Paradoxical
1
2010
14
0.080
Why?
Comorbidity
3
2016
1112
0.080
Why?
Health Status Indicators
1
2010
94
0.080
Why?
Hemostatic Techniques
1
2009
12
0.080
Why?
Operative Time
2
2020
91
0.080
Why?
Neoplasm Recurrence, Local
1
2012
372
0.080
Why?
DNA, Mitochondrial
1
2010
86
0.080
Why?
Adolescent
5
2020
6280
0.070
Why?
Hyperkalemia
1
2008
20
0.070
Why?
Anticoagulants
2
2010
522
0.070
Why?
Recurrence
2
2012
654
0.070
Why?
Survivors
1
2009
186
0.070
Why?
Feasibility Studies
2
2008
581
0.070
Why?
Breast Neoplasms
1
2017
1216
0.070
Why?
Risk
2
2020
374
0.070
Why?
Hospitalization
3
2020
1380
0.070
Why?
Multivariate Analysis
3
2016
928
0.070
Why?
DNA Replication
1
2010
247
0.070
Why?
Stroke
3
2018
1207
0.060
Why?
Ischemic Attack, Transient
1
2008
96
0.060
Why?
Combined Modality Therapy
2
2021
370
0.060
Why?
Erythrocyte Transfusion
1
2007
78
0.060
Why?
Ultrasonography, Interventional
1
2008
119
0.060
Why?
Academic Medical Centers
2
2019
302
0.060
Why?
Mitochondria
1
2010
401
0.060
Why?
Hypertension, Pulmonary
1
2007
99
0.060
Why?
Shock
1
2006
33
0.060
Why?
Blood Transfusion
1
2007
164
0.060
Why?
Anesthesia, General
1
2006
47
0.060
Why?
Axillary Artery
1
2005
7
0.060
Why?
Aortography
1
2006
58
0.060
Why?
Body Surface Area
1
2005
11
0.060
Why?
Femoral Vein
1
2005
19
0.060
Why?
Thromboembolism
1
2006
74
0.060
Why?
Intraoperative Care
1
2005
38
0.060
Why?
Hypothermia, Induced
1
2005
39
0.060
Why?
Stroke Volume
1
2007
342
0.060
Why?
High-Throughput Nucleotide Sequencing
2
2017
312
0.060
Why?
Femoral Artery
1
2006
104
0.060
Why?
Pericardiocentesis
1
2004
4
0.060
Why?
Postoperative Care
1
2005
125
0.060
Why?
Radial Artery
1
2005
55
0.050
Why?
Coronary Restenosis
1
2004
21
0.050
Why?
Electroencephalography
1
2005
149
0.050
Why?
Cardiac Tamponade
1
2004
14
0.050
Why?
Graft Occlusion, Vascular
1
2004
60
0.050
Why?
Postoperative Period
2
2017
130
0.050
Why?
Fatal Outcome
1
2004
122
0.050
Why?
Emergencies
1
2004
122
0.050
Why?
Foreign Bodies
1
2004
55
0.050
Why?
Pacemaker, Artificial
1
2004
50
0.050
Why?
Cerebral Cortex
1
2005
267
0.050
Why?
Blood Vessel Prosthesis
1
2005
214
0.050
Why?
Odds Ratio
3
2012
754
0.050
Why?
Disease Progression
2
2018
1214
0.050
Why?
Heart Arrest
1
2005
175
0.050
Why?
Leukemia-Lymphoma, Adult T-Cell
1
2002
10
0.050
Why?
Bone Wires
1
2021
5
0.050
Why?
ROC Curve
2
2015
292
0.040
Why?
Bone Plates
1
2021
41
0.040
Why?
Acute Disease
2
2018
663
0.040
Why?
Internal Mammary-Coronary Artery Anastomosis
1
2020
4
0.040
Why?
Stents
1
2004
493
0.040
Why?
Surgical Flaps
1
2021
116
0.040
Why?
Transplantation, Homologous
1
2021
250
0.040
Why?
Dyspnea
2
2011
120
0.040
Why?
Aortic Rupture
1
2020
47
0.040
Why?
Thoracic Surgical Procedures
1
2020
42
0.040
Why?
Massachusetts
2
2019
2140
0.040
Why?
Hospital Costs
1
2020
126
0.040
Why?
Tissue and Organ Procurement
1
2019
39
0.040
Why?
Benchmarking
1
2020
136
0.040
Why?
Morbidity
1
2019
110
0.040
Why?
Child
3
2022
4601
0.040
Why?
Risk Adjustment
1
2019
94
0.040
Why?
Hospitals, Teaching
1
2019
105
0.040
Why?
Myocytes, Cardiac
1
2019
121
0.040
Why?
Fibrosis
1
2019
172
0.040
Why?
Seasons
1
2019
138
0.040
Why?
Hospitals
1
2021
385
0.040
Why?
Trachea
1
1998
83
0.040
Why?
Prospective Studies
2
2016
3300
0.030
Why?
Chi-Square Distribution
2
2010
414
0.030
Why?
Restraint, Physical
1
2018
57
0.030
Why?
Ventricular Dysfunction, Right
1
2018
50
0.030
Why?
NAV1.8 Voltage-Gated Sodium Channel
1
2017
3
0.030
Why?
Sex Factors
1
2020
990
0.030
Why?
Radiotherapy
1
2017
65
0.030
Why?
Cyclic GMP
1
2017
33
0.030
Why?
Ointments
1
2016
7
0.030
Why?
Monitoring, Intraoperative
2
2008
47
0.030
Why?
Venous Thrombosis
1
2018
112
0.030
Why?
Administration, Topical
1
2016
50
0.030
Why?
Body Size
1
2016
19
0.030
Why?
Dilatation, Pathologic
1
2016
30
0.030
Why?
Genotyping Techniques
1
2016
21
0.030
Why?
Membrane Potentials
1
2017
138
0.030
Why?
Delivery of Health Care
1
2021
432
0.030
Why?
Genetic Association Studies
1
2017
120
0.030
Why?
Inpatients
1
2019
313
0.030
Why?
Muscle Proteins
1
2017
117
0.030
Why?
Patient Readmission
1
2020
446
0.030
Why?
Education, Medical, Graduate
1
2019
348
0.030
Why?
Reference Values
1
2016
326
0.030
Why?
Kidney
1
2018
450
0.030
Why?
Sequence Analysis, RNA
1
2017
180
0.030
Why?
Tertiary Care Centers
1
2016
110
0.030
Why?
Chronic Disease
1
2019
741
0.030
Why?
Cardiovascular Agents
1
2016
106
0.030
Why?
Cells, Cultured
1
2019
2183
0.030
Why?
Area Under Curve
1
2015
149
0.030
Why?
Drug Resistance
1
2015
152
0.030
Why?
Home Care Services
1
2013
97
0.020
Why?
Biomarkers
1
2018
1472
0.020
Why?
Phenotype
1
2016
1231
0.020
Why?
Carrier Proteins
1
2017
718
0.020
Why?
Counterpulsation
1
2012
2
0.020
Why?
Disease-Free Survival
1
2012
242
0.020
Why?
Internship and Residency
1
2019
804
0.020
Why?
Pilot Projects
1
2015
1009
0.020
Why?
Neoplasm Metastasis
1
2012
221
0.020
Why?
Scoliosis
1
2011
10
0.020
Why?
Tinnitus
1
2011
16
0.020
Why?
Alopecia
1
2011
28
0.020
Why?
Dipyridamole
1
2010
17
0.020
Why?
Elective Surgical Procedures
1
2011
119
0.020
Why?
Databases as Topic
1
2010
49
0.020
Why?
Neoplasm Staging
1
2012
539
0.020
Why?
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha
1
2010
34
0.020
Why?
Thrombocytopenia
1
2010
56
0.020
Why?
Whole Blood Coagulation Time
1
2009
3
0.020
Why?
Secondary Prevention
1
2010
164
0.020
Why?
Heat-Shock Proteins
1
2010
69
0.020
Why?
Linear Models
1
2010
405
0.020
Why?
Aspirin
1
2010
171
0.020
Why?
Treatment Failure
1
2009
206
0.020
Why?
Down-Regulation
1
2010
324
0.020
Why?
Surgical Instruments
1
2008
44
0.020
Why?
Mediastinum
1
2008
28
0.020
Why?
Case-Control Studies
1
2012
1134
0.020
Why?
Dissection
1
2008
46
0.020
Why?
Diastole
1
2008
90
0.020
Why?
Walking
1
2010
242
0.020
Why?
Myocardial Revascularization
1
2008
78
0.020
Why?
Dose-Response Relationship, Drug
1
2009
853
0.020
Why?
Probability
1
2008
168
0.020
Why?
Neoplasms
1
2018
1362
0.020
Why?
Coronary Stenosis
1
2008
41
0.020
Why?
Animals
2
2016
21259
0.020
Why?
Signal Transduction
1
2017
3137
0.020
Why?
Coronary Artery Bypass, Off-Pump
1
2005
5
0.010
Why?
Confidence Intervals
1
2006
236
0.010
Why?
Algorithms
1
2010
1040
0.010
Why?
Angiography
1
2005
154
0.010
Why?
Myocardial Infarction
1
2012
918
0.010
Why?
Regression Analysis
1
2006
497
0.010
Why?
Anastomosis, Surgical
1
2005
118
0.010
Why?
Reproducibility of Results
1
2009
1689
0.010
Why?
Sensitivity and Specificity
1
2008
1160
0.010
Why?
Mice
1
2016
11070
0.010
Why?
Transcription Factors
1
2010
1549
0.010
Why?
Tracheal Stenosis
1
1998
9
0.010
Why?
Bronchoscopy
1
1998
88
0.010
Why?
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