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Roger Royster

Concepts (267)

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?
Coronary Artery Bypass
14
2017
100
1.320
Why?
Thoracoscopy
2
2018
9
1.220
Why?
Atrial Fibrillation
4
2020
314
1.110
Why?
Propofol
2
2022
19
0.970
Why?
Methohexital
1
2022
4
0.880
Why?
Vasoconstriction
1
2022
40
0.880
Why?
Intubation, Intratracheal
3
2017
70
0.770
Why?
Humans
54
2022
29293
0.760
Why?
Goals
1
2020
36
0.740
Why?
Catheter Ablation
1
2020
62
0.700
Why?
Hemodynamics
14
2002
148
0.700
Why?
Bronchoscopy
2
2017
56
0.680
Why?
Aorta, Thoracic
1
2019
72
0.670
Why?
Cardiology
1
2019
76
0.660
Why?
Bronchi
1
2017
41
0.590
Why?
Stents
2
2008
171
0.580
Why?
Postoperative Complications
6
2017
672
0.580
Why?
Cardiotonic Agents
9
2006
39
0.540
Why?
Collateral Circulation
1
2015
8
0.520
Why?
Heart Failure
2
2020
573
0.520
Why?
Coronary Circulation
1
2015
30
0.520
Why?
Prospective Studies
11
2022
2035
0.510
Why?
Coronary Thrombosis
3
2009
15
0.510
Why?
Cardiac Surgical Procedures
5
2011
71
0.490
Why?
Blood Loss, Surgical
2
2011
45
0.480
Why?
Myocardial Ischemia
5
2002
83
0.430
Why?
Coronary Vessels
2
2015
147
0.420
Why?
Coronary Artery Disease
1
2015
361
0.410
Why?
Pulmonary Atelectasis
1
2011
2
0.400
Why?
Epinephrine
7
1998
41
0.400
Why?
Respiratory Mechanics
1
2011
8
0.400
Why?
Antifibrinolytic Agents
1
2011
16
0.400
Why?
Mediastinal Neoplasms
1
2011
13
0.400
Why?
Intraoperative Complications
2
2011
49
0.400
Why?
Cardiopulmonary Bypass
10
2007
57
0.390
Why?
Amrinone
5
1998
5
0.360
Why?
Randomized Controlled Trials as Topic
1
2011
467
0.330
Why?
Middle Aged
27
2017
10892
0.330
Why?
Risk Factors
5
2020
3560
0.330
Why?
Adrenergic beta-Antagonists
4
1999
59
0.330
Why?
Anesthesia
4
2011
65
0.330
Why?
Oxygen
4
2020
139
0.320
Why?
Perioperative Care
1
2008
58
0.310
Why?
Heart Rate
11
2007
315
0.310
Why?
Surgical Procedures, Operative
1
2008
75
0.310
Why?
Dobutamine
5
1998
43
0.300
Why?
Male
33
2017
17896
0.300
Why?
Catheterization, Central Venous
1
2007
60
0.290
Why?
Electric Countershock
2
2022
10
0.290
Why?
Female
30
2017
18270
0.260
Why?
Dopamine
3
2006
227
0.240
Why?
Postural Balance
1
2016
160
0.240
Why?
Pesticides
1
2016
189
0.230
Why?
Occupational Exposure
1
2016
224
0.220
Why?
Pulmonary Circulation
1
2022
4
0.220
Why?
Emigrants and Immigrants
1
2016
235
0.220
Why?
Transients and Migrants
1
2016
281
0.220
Why?
Catheterization, Swan-Ganz
1
2002
4
0.220
Why?
Fentanyl
5
1991
33
0.210
Why?
Postoperative Care
2
2007
72
0.210
Why?
Propanolamines
2
1999
11
0.200
Why?
Postoperative Period
3
2017
92
0.200
Why?
Aged
16
2017
9528
0.190
Why?
Lung
1
2022
235
0.190
Why?
Electrocardiography, Ambulatory
2
1997
21
0.190
Why?
Nitroglycerin
1
2000
11
0.190
Why?
Vasodilator Agents
1
2000
54
0.190
Why?
Cardiac Pacing, Artificial
3
2007
10
0.180
Why?
Consensus
1
2019
69
0.180
Why?
Hispanic Americans
1
2016
904
0.180
Why?
Anesthetics
2
1989
19
0.170
Why?
Aorta
1
2019
103
0.170
Why?
Coronary Restenosis
2
2008
13
0.170
Why?
Double-Blind Method
8
2000
504
0.160
Why?
Isoproterenol
2
1997
18
0.160
Why?
Thoracic Surgery, Video-Assisted
1
2018
12
0.160
Why?
Calcium
4
1992
297
0.160
Why?
Ischemia
1
2018
92
0.160
Why?
Cardiac Output, Low
2
1994
10
0.160
Why?
Tachycardia
1
1997
3
0.160
Why?
Premedication
1
1997
10
0.160
Why?
Electroconvulsive Therapy
1
1997
25
0.150
Why?
Heart
4
1995
163
0.150
Why?
Adrenergic beta-Agonists
1
1997
50
0.150
Why?
Pharyngitis
1
2017
11
0.150
Why?
Aged, 80 and over
5
2017
3729
0.150
Why?
Cardiac Output
5
1995
33
0.150
Why?
Preanesthetic Medication
2
2002
3
0.140
Why?
Mental Recall
1
1996
52
0.140
Why?
Random Allocation
1
2017
213
0.140
Why?
Cohort Studies
1
2020
1697
0.140
Why?
Adult
9
2017
8484
0.140
Why?
Incidence
1
2019
1123
0.140
Why?
Anesthesiology
1
1996
49
0.130
Why?
Pain, Postoperative
1
2018
175
0.130
Why?
Hemoptysis
1
1995
3
0.130
Why?
Bronchial Diseases
1
1995
5
0.130
Why?
Physician-Patient Relations
1
1996
169
0.130
Why?
Patient Satisfaction
1
1996
223
0.130
Why?
Dopamine Agents
1
1994
19
0.120
Why?
Anesthesia, Inhalation
2
2011
16
0.120
Why?
Anesthesia, Intravenous
3
1989
6
0.120
Why?
Myocardial Infarction
5
2000
419
0.110
Why?
Hypertension
2
1997
914
0.110
Why?
Magnesium Sulfate
2
1991
6
0.110
Why?
Treatment Outcome
1
2020
3116
0.110
Why?
Critical Illness
1
1993
88
0.110
Why?
Calcium Chloride
1
1992
3
0.110
Why?
Dexmedetomidine
1
2011
8
0.100
Why?
Coronary Vasospasm
1
1991
4
0.100
Why?
Splanchnic Circulation
1
2011
3
0.100
Why?
Hodgkin Disease
1
2011
8
0.100
Why?
Bradycardia
1
2011
15
0.100
Why?
Hypnotics and Sedatives
1
2011
27
0.100
Why?
Respiration, Artificial
1
2011
96
0.090
Why?
Kidney
1
1994
486
0.090
Why?
Mitral Valve Insufficiency
1
2010
21
0.090
Why?
Prosthesis Failure
1
2010
43
0.090
Why?
Biopsy
1
2011
241
0.090
Why?
Arrhythmias, Cardiac
3
2002
81
0.090
Why?
Dose-Response Relationship, Drug
6
1998
641
0.090
Why?
Heart Valve Prosthesis
1
2010
53
0.090
Why?
Etomidate
1
1989
5
0.090
Why?
Drug Interactions
4
1997
80
0.090
Why?
Pentobarbital
2
1988
5
0.080
Why?
Heart Atria
1
2009
62
0.080
Why?
Echocardiography
1
2009
141
0.080
Why?
Ticlopidine
1
2008
17
0.080
Why?
Drug-Eluting Stents
1
2008
16
0.080
Why?
Anesthesia, Conduction
1
2008
29
0.080
Why?
Monitoring, Intraoperative
2
2006
39
0.080
Why?
Aspirin
1
2008
62
0.080
Why?
Neuromuscular Depolarizing Agents
1
1988
5
0.080
Why?
Case-Control Studies
2
2016
862
0.080
Why?
Platelet Aggregation Inhibitors
1
2008
82
0.080
Why?
Medical Errors
1
2007
36
0.070
Why?
Cyclic AMP
2
1998
40
0.070
Why?
Intraoperative Care
1
2006
48
0.070
Why?
Ventricular Dysfunction, Left
1
2006
137
0.070
Why?
Recovery of Function
1
2006
190
0.060
Why?
Blood Pressure
6
2006
810
0.060
Why?
Myocardial Contraction
5
1998
55
0.060
Why?
Young Adult
1
2011
2415
0.060
Why?
Coronary Disease
2
1997
200
0.050
Why?
Infusions, Intra-Arterial
1
2002
6
0.050
Why?
Anesthesia, General
2
2006
29
0.050
Why?
Sex Factors
2
1996
632
0.050
Why?
Age Factors
3
1996
1115
0.050
Why?
North Carolina
1
2016
1426
0.050
Why?
Time Factors
5
2011
2009
0.050
Why?
Hypoxia-Ischemia, Brain
1
1999
3
0.050
Why?
Sufentanil
2
1989
5
0.040
Why?
Aorta, Abdominal
1
1999
26
0.040
Why?
Length of Stay
2
1999
294
0.040
Why?
Antioxidants
1
1999
114
0.040
Why?
Animals
7
1997
7318
0.040
Why?
Heparin
2
1990
75
0.040
Why?
Adrenergic Agonists
1
1998
5
0.040
Why?
Heart Valves
1
1998
15
0.040
Why?
Lymphocytes
1
1998
55
0.040
Why?
Heart Conduction System
2
1988
71
0.040
Why?
Myocardium
2
1997
170
0.040
Why?
Renal Circulation
1
1997
13
0.040
Why?
Sympathetic Nervous System
1
1997
29
0.040
Why?
Electrocardiography
3
1999
568
0.040
Why?
Chromonar
1
1997
1
0.040
Why?
Nausea
1
1997
49
0.040
Why?
Coumarins
1
1997
2
0.040
Why?
Myocardial Reperfusion
1
1997
10
0.040
Why?
Myocardial Reperfusion Injury
1
1997
19
0.040
Why?
Hospital-Patient Relations
1
1996
3
0.040
Why?
Intraoperative Period
2
1999
37
0.040
Why?
Injections, Intravenous
2
1999
73
0.040
Why?
Telephone
1
1996
50
0.040
Why?
Stimulation, Chemical
2
1995
12
0.030
Why?
Pyridones
1
1995
10
0.030
Why?
Anticoagulants
1
1997
122
0.030
Why?
General Surgery
1
1996
81
0.030
Why?
Triiodothyronine
1
1995
7
0.030
Why?
Receptors, Adrenergic, beta
1
1995
13
0.030
Why?
Attitude to Health
1
1996
148
0.030
Why?
Natriuresis
1
1994
4
0.030
Why?
Diuresis
1
1994
9
0.030
Why?
Logistic Models
1
1996
729
0.030
Why?
Statistics as Topic
1
1994
107
0.030
Why?
Health Status
1
1996
370
0.030
Why?
Dogs
3
1988
117
0.030
Why?
Retrospective Studies
2
2011
3129
0.030
Why?
Ventricular Function, Left
3
2006
197
0.030
Why?
Ephedrine
1
1992
3
0.030
Why?
Shock
1
1993
29
0.030
Why?
Drug Therapy, Combination
1
1993
273
0.030
Why?
Drug Combinations
2
1989
86
0.030
Why?
Pulmonary Artery
2
1992
23
0.030
Why?
Infusions, Intravenous
1
1992
85
0.030
Why?
Hypocalcemia
1
1991
8
0.030
Why?
Nitroprusside
1
1991
5
0.030
Why?
Hypothermia, Induced
1
1991
16
0.020
Why?
Parathyroid Hormone
1
1991
40
0.020
Why?
Cardiomegaly
1
1991
30
0.020
Why?
Clinical Trials as Topic
1
1993
299
0.020
Why?
Whole Blood Coagulation Time
1
1990
1
0.020
Why?
Protamines
1
1990
5
0.020
Why?
Cerebrovascular Circulation
1
1991
95
0.020
Why?
Pressure
1
2010
54
0.020
Why?
Academic Medical Centers
1
2011
150
0.020
Why?
Critical Care
1
2011
114
0.020
Why?
Lorazepam
1
1989
3
0.020
Why?
Scopolamine
1
1989
6
0.020
Why?
Succinylcholine
1
1989
6
0.020
Why?
Equipment Safety
1
1989
20
0.020
Why?
Halothane
1
1988
1
0.020
Why?
Verapamil
1
1988
7
0.020
Why?
Atrioventricular Node
1
1988
5
0.020
Why?
Propranolol
1
1988
16
0.020
Why?
Predictive Value of Tests
1
1991
792
0.020
Why?
Analgesics, Opioid
1
2011
244
0.020
Why?
Electrophysiology
1
1988
66
0.020
Why?
Edrophonium
1
1987
1
0.020
Why?
Isoflurane
1
1987
1
0.020
Why?
Ultrasonography
1
2010
348
0.020
Why?
Pulmonary Wedge Pressure
1
1987
7
0.020
Why?
Blood Coagulation
1
1987
12
0.020
Why?
Hypertension, Pulmonary
1
1987
23
0.020
Why?
Catheterization
1
1987
58
0.020
Why?
Lung Diseases
1
1987
45
0.020
Why?
Prognosis
1
1991
1366
0.020
Why?
Neuromuscular Junction
1
1987
67
0.020
Why?
Aortic Valve Insufficiency
1
2007
24
0.020
Why?
Hemorrhage
1
1987
91
0.020
Why?
Heart Valve Prosthesis Implantation
1
2007
41
0.020
Why?
Echocardiography, Transesophageal
1
2006
40
0.020
Why?
Renal Artery Obstruction
1
2006
38
0.020
Why?
Heart Ventricles
1
2006
108
0.020
Why?
Multivariate Analysis
2
1998
638
0.010
Why?
Follow-Up Studies
1
2007
2117
0.010
Why?
Stroke Volume
2
1992
281
0.010
Why?
Preoperative Care
1
1999
110
0.010
Why?
Neuropsychological Tests
1
1999
379
0.010
Why?
Rabbits
1
1997
185
0.010
Why?
Cells, Cultured
1
1998
801
0.010
Why?
Milrinone
1
1995
1
0.010
Why?
Drug Evaluation
1
1995
10
0.010
Why?
Thyroxine
1
1995
16
0.010
Why?
Cardiac Volume
1
1992
11
0.010
Why?
Rats, Sprague-Dawley
1
1995
748
0.010
Why?
Ventricular Function, Right
1
1992
15
0.010
Why?
Placebos
1
1992
61
0.010
Why?
Vascular Resistance
1
1992
28
0.010
Why?
Costs and Cost Analysis
1
1992
88
0.010
Why?
Radioimmunoassay
1
1991
21
0.010
Why?
Hypotension, Controlled
1
1991
1
0.010
Why?
Magnesium
1
1991
22
0.010
Why?
Calcitriol
1
1991
23
0.010
Why?
Rats
1
1995
1607
0.010
Why?
Evaluation Studies as Topic
1
1989
39
0.010
Why?
Refractory Period, Electrophysiological
1
1988
2
0.010
Why?
Vecuronium Bromide
1
1987
1
0.000
Why?
Pancuronium
1
1987
2
0.000
Why?
Nitrous Oxide
1
1987
4
0.000
Why?
Atropine
1
1987
16
0.000
Why?
Platelet Count
1
1987
21
0.000
Why?
Probability
1
1987
150
0.000
Why?
Equipment Design
1
1987
167
0.000
Why?
Regression Analysis
1
1987
274
0.000
Why?
Blood Pressure Determination
1
1987
95
0.000
Why?
Reproducibility of Results
1
1987
727
0.000
Why?
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Concepts (267)
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