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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
1.350
Why?
Coronary Artery Bypass
14
2017
111
1.140
Why?
Thoracoscopy
2
2018
12
1.060
Why?
Atrial Fibrillation
4
2020
396
0.930
Why?
Propofol
2
2022
20
0.840
Why?
Cardiac Tamponade
1
2023
10
0.820
Why?
Atrial Flutter
1
2023
20
0.820
Why?
Hemodynamics
15
2023
162
0.800
Why?
Methohexital
1
2022
5
0.760
Why?
Vasoconstriction
1
2022
43
0.760
Why?
Humans
56
2023
32952
0.690
Why?
Intubation, Intratracheal
3
2017
74
0.670
Why?
Goals
1
2020
35
0.640
Why?
Bronchoscopy
2
2017
47
0.590
Why?
Aorta, Thoracic
1
2019
85
0.580
Why?
Prospective Studies
12
2023
2338
0.580
Why?
Cardiology
1
2019
108
0.560
Why?
Stents
2
2008
174
0.510
Why?
Bronchi
1
2017
34
0.510
Why?
Postoperative Complications
6
2017
828
0.490
Why?
Cardiotonic Agents
9
2006
43
0.460
Why?
Collateral Circulation
1
2015
9
0.450
Why?
Coronary Circulation
1
2015
40
0.450
Why?
Coronary Thrombosis
3
2009
14
0.450
Why?
Cardiac Surgical Procedures
5
2011
81
0.420
Why?
Blood Loss, Surgical
2
2011
54
0.410
Why?
Heart Failure
2
2020
761
0.410
Why?
Myocardial Ischemia
5
2002
105
0.370
Why?
Coronary Vessels
2
2015
164
0.360
Why?
Pulmonary Atelectasis
1
2011
2
0.350
Why?
Epinephrine
7
1998
42
0.350
Why?
Coronary Artery Disease
1
2015
416
0.350
Why?
Respiratory Mechanics
1
2011
6
0.350
Why?
Antifibrinolytic Agents
1
2011
16
0.350
Why?
Mediastinal Neoplasms
1
2011
13
0.350
Why?
Cardiopulmonary Bypass
10
2007
56
0.340
Why?
Intraoperative Complications
2
2011
59
0.340
Why?
Male
35
2023
19743
0.320
Why?
Amrinone
5
1998
5
0.320
Why?
Randomized Controlled Trials as Topic
1
2011
541
0.290
Why?
Anesthesia
4
2011
64
0.280
Why?
Middle Aged
28
2017
12202
0.280
Why?
Adrenergic beta-Antagonists
4
1999
63
0.280
Why?
Oxygen
4
2020
144
0.280
Why?
Risk Factors
5
2020
4001
0.280
Why?
Perioperative Care
1
2008
56
0.280
Why?
Heart Rate
11
2007
345
0.270
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
4057
0.250
Why?
Female
31
2017
20363
0.220
Why?
Dopamine
3
2006
234
0.210
Why?
Postural Balance
1
2016
180
0.210
Why?
Positive-Pressure Respiration
1
2023
13
0.210
Why?
Pesticides
1
2016
196
0.200
Why?
Occupational Exposure
1
2016
231
0.200
Why?
Pulmonary Circulation
1
2022
4
0.190
Why?
Emigrants and Immigrants
1
2016
240
0.190
Why?
Transients and Migrants
1
2016
298
0.190
Why?
Catheterization, Swan-Ganz
1
2002
4
0.190
Why?
Fentanyl
5
1991
32
0.180
Why?
Postoperative Care
2
2007
78
0.180
Why?
Propanolamines
2
1999
11
0.170
Why?
Postoperative Period
3
2017
99
0.170
Why?
Aged
17
2017
10624
0.170
Why?
Lung
1
2022
268
0.170
Why?
Nitroglycerin
1
2000
11
0.170
Why?
Electrocardiography, Ambulatory
2
1997
27
0.170
Why?
Vasodilator Agents
1
2000
60
0.160
Why?
Cardiac Pacing, Artificial
3
2007
13
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
0.140
Why?
Isoproterenol
2
1997
17
0.140
Why?
Double-Blind Method
8
2000
543
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
0.130
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
0.120
Why?
Mental Recall
1
1996
51
0.120
Why?
Random Allocation
1
2017
229
0.120
Why?
Cohort Studies
1
2020
1852
0.120
Why?
Adult
10
2017
9586
0.120
Why?
Incidence
1
2019
1246
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
0.100
Why?
Anesthesia, Intravenous
3
1989
6
0.100
Why?
Myocardial Infarction
5
2000
486
0.090
Why?
Hypertension
2
1997
983
0.090
Why?
Critical Illness
1
1993
84
0.090
Why?
Treatment Outcome
1
2020
3460
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
523
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
79
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
191
0.070
Why?
Aspirin
1
2008
62
0.070
Why?
Monitoring, Intraoperative
2
2006
44
0.070
Why?
Case-Control Studies
2
2016
880
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
867
0.060
Why?
Recovery of Function
1
2006
205
0.060
Why?
Ventricular Dysfunction, Left
1
2006
172
0.060
Why?
Myocardial Contraction
5
1998
60
0.050
Why?
Young Adult
1
2011
2738
0.050
Why?
Coronary Disease
2
1997
217
0.050
Why?
Infusions, Intra-Arterial
1
2002
6
0.050
Why?
Sex Factors
2
1996
681
0.050
Why?
Anesthesia, General
2
2006
33
0.050
Why?
Age Factors
3
1996
1202
0.040
Why?
North Carolina
1
2016
1550
0.040
Why?
Time Factors
5
2011
2195
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
7598
0.040
Why?
Length of Stay
2
1999
329
0.040
Why?
Heparin
2
1990
70
0.040
Why?
Antioxidants
1
1999
116
0.040
Why?
Adrenergic Agonists
1
1998
5
0.040
Why?
Heart Valves
1
1998
16
0.030
Why?
Lymphocytes
1
1998
59
0.030
Why?
Heart Conduction System
2
1988
78
0.030
Why?
Myocardium
2
1997
192
0.030
Why?
Renal Circulation
1
1997
12
0.030
Why?
Sympathetic Nervous System
1
1997
31
0.030
Why?
Electrocardiography
3
1999
637
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
403
0.030
Why?
Splenectomy
1
1974
22
0.030
Why?
Dogs
3
1988
120
0.030
Why?
Retrospective Studies
2
2011
3708
0.020
Why?
Ventricular Function, Left
3
2006
268
0.020
Why?
Ephedrine
1
1992
3
0.020
Why?
Shock
1
1993
32
0.020
Why?
Drug Therapy, Combination
1
1993
290
0.020
Why?
Drug Combinations
2
1989
99
0.020
Why?
Pulmonary Artery
2
1992
26
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
308
0.020
Why?
Whole Blood Coagulation Time
1
1990
1
0.020
Why?
Protamines
1
1990
4
0.020
Why?
Cerebrovascular Circulation
1
1991
96
0.020
Why?
Pressure
1
2010
51
0.020
Why?
Critical Care
1
2011
109
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?
Analgesics, Opioid
1
2011
252
0.020
Why?
Propranolol
1
1988
17
0.020
Why?
Predictive Value of Tests
1
1991
894
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
1547
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
0.010
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
2287
0.010
Why?
Stroke Volume
2
1992
421
0.010
Why?
Preoperative Care
1
1999
123
0.010
Why?
Neuropsychological Tests
1
1999
363
0.010
Why?
Rabbits
1
1997
193
0.010
Why?
Cells, Cultured
1
1998
821
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
1610
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
103
0.000
Why?
Adolescent
1
1974
3643
0.000
Why?
Reproducibility of Results
1
1987
770
0.000
Why?
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Concepts (283)
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