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Roger Royster

Concepts (283)

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?
Catheter Ablation
2
2023
114
1.360
Why?
Coronary Artery Bypass
14
2017
111
1.150
Why?
Thoracoscopy
2
2018
12
1.070
Why?
Atrial Fibrillation
4
2020
391
0.940
Why?
Propofol
2
2022
20
0.850
Why?
Cardiac Tamponade
1
2023
10
0.830
Why?
Atrial Flutter
1
2023
19
0.830
Why?
Hemodynamics
15
2023
162
0.800
Why?
Methohexital
1
2022
5
0.770
Why?
Vasoconstriction
1
2022
43
0.770
Why?
Humans
56
2023
32798
0.700
Why?
Intubation, Intratracheal
3
2017
74
0.680
Why?
Goals
1
2020
35
0.650
Why?
Bronchoscopy
2
2017
47
0.600
Why?
Aorta, Thoracic
1
2019
85
0.590
Why?
Prospective Studies
12
2023
2327
0.580
Why?
Cardiology
1
2019
108
0.560
Why?
Bronchi
1
2017
34
0.520
Why?
Stents
2
2008
174
0.520
Why?
Postoperative Complications
6
2017
828
0.490
Why?
Cardiotonic Agents
9
2006
43
0.470
Why?
Collateral Circulation
1
2015
9
0.460
Why?
Coronary Circulation
1
2015
40
0.450
Why?
Coronary Thrombosis
3
2009
14
0.450
Why?
Heart Failure
2
2020
695
0.430
Why?
Cardiac Surgical Procedures
5
2011
81
0.420
Why?
Blood Loss, Surgical
2
2011
54
0.420
Why?
Myocardial Ischemia
5
2002
105
0.370
Why?
Coronary Vessels
2
2015
164
0.370
Why?
Epinephrine
7
1998
40
0.350
Why?
Pulmonary Atelectasis
1
2011
2
0.350
Why?
Respiratory Mechanics
1
2011
6
0.350
Why?
Coronary Artery Disease
1
2015
413
0.350
Why?
Antifibrinolytic Agents
1
2011
16
0.350
Why?
Mediastinal Neoplasms
1
2011
13
0.350
Why?
Cardiopulmonary Bypass
10
2007
56
0.350
Why?
Intraoperative Complications
2
2011
59
0.350
Why?
Male
35
2023
19641
0.330
Why?
Amrinone
5
1998
5
0.320
Why?
Randomized Controlled Trials as Topic
1
2011
532
0.290
Why?
Anesthesia
4
2011
64
0.290
Why?
Middle Aged
28
2017
12125
0.290
Why?
Adrenergic beta-Antagonists
4
1999
63
0.290
Why?
Oxygen
4
2020
144
0.290
Why?
Risk Factors
5
2020
3974
0.280
Why?
Perioperative Care
1
2008
56
0.280
Why?
Heart Rate
11
2007
343
0.280
Why?
Surgical Procedures, Operative
1
2008
78
0.270
Why?
Dobutamine
5
1998
55
0.260
Why?
Catheterization, Central Venous
1
2007
61
0.260
Why?
Electric Countershock
2
2022
17
0.250
Why?
Aged, 80 and over
6
2023
4032
0.250
Why?
Female
31
2017
20261
0.230
Why?
Dopamine
3
2006
234
0.220
Why?
Positive-Pressure Respiration
1
2023
13
0.210
Why?
Postural Balance
1
2016
180
0.210
Why?
Pesticides
1
2016
196
0.200
Why?
Occupational Exposure
1
2016
231
0.200
Why?
Pulmonary Circulation
1
2022
4
0.200
Why?
Emigrants and Immigrants
1
2016
240
0.200
Why?
Transients and Migrants
1
2016
298
0.190
Why?
Catheterization, Swan-Ganz
1
2002
4
0.190
Why?
Fentanyl
5
1991
32
0.190
Why?
Postoperative Care
2
2007
78
0.190
Why?
Propanolamines
2
1999
11
0.180
Why?
Postoperative Period
3
2017
99
0.170
Why?
Aged
17
2017
10538
0.170
Why?
Lung
1
2022
265
0.170
Why?
Electrocardiography, Ambulatory
2
1997
26
0.170
Why?
Nitroglycerin
1
2000
11
0.170
Why?
Vasodilator Agents
1
2000
59
0.160
Why?
Cardiac Pacing, Artificial
3
2007
12
0.160
Why?
Hispanic Americans
1
2016
930
0.160
Why?
Consensus
1
2019
87
0.150
Why?
Anesthetics
2
1989
19
0.150
Why?
Aorta
1
2019
127
0.150
Why?
Coronary Restenosis
2
2008
13
0.150
Why?
Double-Blind Method
8
2000
525
0.140
Why?
Isoproterenol
2
1997
17
0.140
Why?
Thoracic Surgery, Video-Assisted
1
2018
12
0.140
Why?
Ischemia
1
2018
104
0.140
Why?
Calcium
4
1992
323
0.140
Why?
Cardiac Output, Low
2
1994
10
0.140
Why?
Tachycardia
1
1997
6
0.140
Why?
Premedication
1
1997
16
0.140
Why?
Electroconvulsive Therapy
1
1997
28
0.130
Why?
Adrenergic beta-Agonists
1
1997
30
0.130
Why?
Heart
4
1995
185
0.130
Why?
Pharyngitis
1
2017
10
0.130
Why?
Cardiac Output
5
1995
34
0.130
Why?
Preanesthetic Medication
2
2002
3
0.130
Why?
Mental Recall
1
1996
51
0.120
Why?
Random Allocation
1
2017
229
0.120
Why?
Cohort Studies
1
2020
1844
0.120
Why?
Adult
10
2017
9560
0.120
Why?
Incidence
1
2019
1238
0.120
Why?
Anesthesiology
1
1996
48
0.120
Why?
Pain, Postoperative
1
2018
193
0.120
Why?
Bronchial Diseases
1
1995
4
0.120
Why?
Hemoptysis
1
1995
3
0.120
Why?
Hodgkin Disease
2
2011
9
0.110
Why?
Physician-Patient Relations
1
1996
187
0.110
Why?
Patient Satisfaction
1
1996
240
0.110
Why?
Dopamine Agents
1
1994
20
0.110
Why?
Anesthesia, Inhalation
2
2011
16
0.110
Why?
Anesthesia, Intravenous
3
1989
6
0.100
Why?
Myocardial Infarction
5
2000
483
0.090
Why?
Hypertension
2
1997
976
0.090
Why?
Critical Illness
1
1993
84
0.090
Why?
Treatment Outcome
1
2020
3438
0.090
Why?
Magnesium Sulfate
2
1991
14
0.090
Why?
Calcium Chloride
1
1992
2
0.090
Why?
Dexmedetomidine
1
2011
8
0.090
Why?
Coronary Vasospasm
1
1991
4
0.090
Why?
Splanchnic Circulation
1
2011
3
0.090
Why?
Hypnotics and Sedatives
1
2011
29
0.090
Why?
Bradycardia
1
2011
18
0.090
Why?
Respiration, Artificial
1
2011
98
0.080
Why?
Kidney
1
1994
520
0.080
Why?
Biopsy
1
2011
245
0.080
Why?
Dose-Response Relationship, Drug
6
1998
622
0.080
Why?
Prosthesis Failure
1
2010
51
0.080
Why?
Arrhythmias, Cardiac
3
2002
101
0.080
Why?
Mitral Valve Insufficiency
1
2010
32
0.080
Why?
Heart Valve Prosthesis
1
2010
60
0.080
Why?
Etomidate
1
1989
5
0.080
Why?
Drug Interactions
4
1997
78
0.080
Why?
Pentobarbital
2
1988
4
0.070
Why?
Heart Atria
1
2009
78
0.070
Why?
Ticlopidine
1
2008
17
0.070
Why?
Drug-Eluting Stents
1
2008
14
0.070
Why?
Anesthesia, Conduction
1
2008
24
0.070
Why?
Echocardiography
1
2009
182
0.070
Why?
Aspirin
1
2008
62
0.070
Why?
Monitoring, Intraoperative
2
2006
44
0.070
Why?
Case-Control Studies
2
2016
876
0.070
Why?
Neuromuscular Depolarizing Agents
1
1988
5
0.070
Why?
Platelet Aggregation Inhibitors
1
2008
85
0.070
Why?
Medical Errors
1
2007
37
0.070
Why?
Cyclic AMP
2
1998
45
0.060
Why?
Intraoperative Care
1
2006
48
0.060
Why?
Blood Pressure
6
2006
862
0.060
Why?
Recovery of Function
1
2006
203
0.060
Why?
Ventricular Dysfunction, Left
1
2006
168
0.060
Why?
Myocardial Contraction
5
1998
59
0.050
Why?
Young Adult
1
2011
2730
0.050
Why?
Coronary Disease
2
1997
214
0.050
Why?
Infusions, Intra-Arterial
1
2002
6
0.050
Why?
Sex Factors
2
1996
675
0.050
Why?
Anesthesia, General
2
2006
33
0.050
Why?
Age Factors
3
1996
1197
0.050
Why?
North Carolina
1
2016
1546
0.040
Why?
Time Factors
5
2011
2183
0.040
Why?
Hypoxia-Ischemia, Brain
1
1999
3
0.040
Why?
Sufentanil
2
1989
5
0.040
Why?
Aorta, Abdominal
1
1999
29
0.040
Why?
Animals
7
1997
7569
0.040
Why?
Length of Stay
2
1999
329
0.040
Why?
Antioxidants
1
1999
115
0.040
Why?
Heparin
2
1990
70
0.040
Why?
Adrenergic Agonists
1
1998
5
0.040
Why?
Heart Valves
1
1998
16
0.040
Why?
Lymphocytes
1
1998
59
0.040
Why?
Heart Conduction System
2
1988
78
0.030
Why?
Myocardium
2
1997
191
0.030
Why?
Renal Circulation
1
1997
12
0.030
Why?
Sympathetic Nervous System
1
1997
31
0.030
Why?
Electrocardiography
3
1999
636
0.030
Why?
Nausea
1
1997
52
0.030
Why?
Chromonar
1
1997
1
0.030
Why?
Coumarins
1
1997
1
0.030
Why?
Myocardial Reperfusion
1
1997
10
0.030
Why?
Myocardial Reperfusion Injury
1
1997
18
0.030
Why?
Hospital-Patient Relations
1
1996
3
0.030
Why?
Intraoperative Period
2
1999
43
0.030
Why?
Injections, Intravenous
2
1999
79
0.030
Why?
Telephone
1
1996
58
0.030
Why?
Stimulation, Chemical
2
1995
13
0.030
Why?
Pyridones
1
1995
9
0.030
Why?
General Surgery
1
1996
86
0.030
Why?
Anticoagulants
1
1997
136
0.030
Why?
Triiodothyronine
1
1995
7
0.030
Why?
Receptors, Adrenergic, beta
1
1995
9
0.030
Why?
Attitude to Health
1
1996
163
0.030
Why?
Diuresis
1
1994
6
0.030
Why?
Natriuresis
1
1994
5
0.030
Why?
Logistic Models
1
1996
783
0.030
Why?
Statistics as Topic
1
1994
104
0.030
Why?
Health Status
1
1996
402
0.030
Why?
Splenectomy
1
1974
22
0.030
Why?
Dogs
3
1988
120
0.030
Why?
Ventricular Function, Left
3
2006
252
0.020
Why?
Retrospective Studies
2
2011
3701
0.020
Why?
Ephedrine
1
1992
3
0.020
Why?
Shock
1
1993
32
0.020
Why?
Drug Therapy, Combination
1
1993
289
0.020
Why?
Drug Combinations
2
1989
99
0.020
Why?
Pulmonary Artery
2
1992
25
0.020
Why?
Infusions, Intravenous
1
1992
97
0.020
Why?
Hypocalcemia
1
1991
14
0.020
Why?
Nitroprusside
1
1991
5
0.020
Why?
Hypothermia, Induced
1
1991
16
0.020
Why?
Cardiomegaly
1
1991
31
0.020
Why?
Parathyroid Hormone
1
1991
47
0.020
Why?
Clinical Trials as Topic
1
1993
307
0.020
Why?
Whole Blood Coagulation Time
1
1990
1
0.020
Why?
Protamines
1
1990
4
0.020
Why?
Cerebrovascular Circulation
1
1991
95
0.020
Why?
Pressure
1
2010
51
0.020
Why?
Critical Care
1
2011
108
0.020
Why?
Academic Medical Centers
1
2011
162
0.020
Why?
Lorazepam
1
1989
3
0.020
Why?
Scopolamine
1
1989
5
0.020
Why?
Succinylcholine
1
1989
6
0.020
Why?
Equipment Safety
1
1989
19
0.020
Why?
Halothane
1
1988
1
0.020
Why?
Verapamil
1
1988
8
0.020
Why?
Atrioventricular Node
1
1988
5
0.020
Why?
Propranolol
1
1988
17
0.020
Why?
Analgesics, Opioid
1
2011
252
0.020
Why?
Predictive Value of Tests
1
1991
887
0.020
Why?
Ultrasonography
1
2010
381
0.020
Why?
Electrophysiology
1
1988
72
0.020
Why?
Edrophonium
1
1987
1
0.020
Why?
Isoflurane
1
1987
1
0.020
Why?
Pulmonary Wedge Pressure
1
1987
7
0.020
Why?
Blood Coagulation
1
1987
18
0.020
Why?
Hypertension, Pulmonary
1
1987
24
0.020
Why?
Catheterization
1
1987
57
0.020
Why?
Lung Diseases
1
1987
48
0.020
Why?
Neuromuscular Junction
1
1987
66
0.020
Why?
Prognosis
1
1991
1544
0.020
Why?
Aortic Valve Insufficiency
1
2007
27
0.020
Why?
Hemorrhage
1
1987
107
0.020
Why?
Heart Valve Prosthesis Implantation
1
2007
50
0.020
Why?
Renal Artery Obstruction
1
2006
38
0.020
Why?
Echocardiography, Transesophageal
1
2006
58
0.020
Why?
Heart Ventricles
1
2006
146
0.010
Why?
Multivariate Analysis
2
1998
682
0.010
Why?
Evaluation Studies as Topic
2
1989
43
0.010
Why?
Follow-Up Studies
1
2007
2284
0.010
Why?
Stroke Volume
2
1992
370
0.010
Why?
Preoperative Care
1
1999
122
0.010
Why?
Neuropsychological Tests
1
1999
363
0.010
Why?
Rabbits
1
1997
192
0.010
Why?
Cells, Cultured
1
1998
820
0.010
Why?
Milrinone
1
1995
2
0.010
Why?
Drug Evaluation
1
1995
15
0.010
Why?
Thyroxine
1
1995
16
0.010
Why?
Radioisotope Teletherapy
1
1974
1
0.010
Why?
Splenic Neoplasms
1
1974
1
0.010
Why?
Cobalt Radioisotopes
1
1974
3
0.010
Why?
Blood Cell Count
1
1974
27
0.010
Why?
Leukocyte Count
1
1974
48
0.010
Why?
Radiotherapy Dosage
1
1974
99
0.010
Why?
Blood Platelets
1
1974
40
0.010
Why?
Leukocytes
1
1974
57
0.010
Why?
Spleen
1
1974
85
0.010
Why?
Lymph Nodes
1
1974
114
0.010
Why?
Rats, Sprague-Dawley
1
1995
754
0.010
Why?
Cardiac Volume
1
1992
13
0.010
Why?
Placebos
1
1992
63
0.010
Why?
Vascular Resistance
1
1992
32
0.010
Why?
Ventricular Function, Right
1
1992
19
0.010
Why?
Costs and Cost Analysis
1
1992
102
0.010
Why?
Radioimmunoassay
1
1991
23
0.010
Why?
Hypotension, Controlled
1
1991
1
0.010
Why?
Magnesium
1
1991
30
0.010
Why?
Calcitriol
1
1991
25
0.010
Why?
Rats
1
1995
1606
0.010
Why?
Refractory Period, Electrophysiological
1
1988
2
0.000
Why?
Vecuronium Bromide
1
1987
1
0.000
Why?
Pancuronium
1
1987
2
0.000
Why?
Nitrous Oxide
1
1987
4
0.000
Why?
Platelet Count
1
1987
23
0.000
Why?
Atropine
1
1987
18
0.000
Why?
Child
1
1974
2478
0.000
Why?
Probability
1
1987
157
0.000
Why?
Equipment Design
1
1987
179
0.000
Why?
Regression Analysis
1
1987
288
0.000
Why?
Blood Pressure Determination
1
1987
102
0.000
Why?
Adolescent
1
1974
3638
0.000
Why?
Reproducibility of Results
1
1987
767
0.000
Why?
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Concepts (283)
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