Harvard Catalyst Profiles

Contact, publication, and social network information about Harvard faculty and fellows.

Ryan Callahan, M.D.

Concepts (99)

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?
Pulmonary Valve320203911.360 Why?
Heart Valve Prosthesis Implantation3202014240.840 Why?
Constriction, Pathologic320199460.830 Why?
Coronary Occlusion220192210.790 Why?
Myocardial Reperfusion120183750.660 Why?
Myofibroma12015530.610 Why?
Heart Valve Prosthesis2202015210.580 Why?
Tetralogy of Fallot120165500.490 Why?
Heart Defects, Congenital4202039930.480 Why?
Mediastinal Neoplasms120154500.480 Why?
Sirolimus1201915890.470 Why?
Pulmonary Artery2201818560.460 Why?
Extracorporeal Membrane Oxygenation2201910480.410 Why?
Aortic Diseases120157230.410 Why?
Pulmonary Valve Insufficiency220201310.350 Why?
Angiogenesis Inhibitors1201821040.340 Why?
Coronary Vessels2201929670.340 Why?
Immunosuppressive Agents1201940920.320 Why?
Stents4202032020.310 Why?
Ventricular Dysfunction, Left1201519110.300 Why?
Hypoplastic Left Heart Syndrome220204690.290 Why?
Infant122020328070.280 Why?
Hemodynamics1201442590.280 Why?
Survival Rate22018132010.260 Why?
Patient Discharge1201425360.250 Why?
Protein Kinase Inhibitors1201850970.230 Why?
Blood Pressure1201683670.220 Why?
Treatment Outcome102020587760.210 Why?
Retrospective Studies112020624750.210 Why?
Child, Preschool102020400320.210 Why?
Pulmonary Veno-Occlusive Disease12019660.200 Why?
Fetal Therapies120201000.200 Why?
Decision Trees120205260.180 Why?
Norwood Procedures120181270.170 Why?
Child102020679830.160 Why?
Postoperative Complications22019147110.160 Why?
Prosthesis Design2202022350.160 Why?
Saphenous Vein120185640.150 Why?
Fluoroscopy120188610.140 Why?
Pulmonary Veins120196530.140 Why?
Decompression, Surgical120195300.140 Why?
Diastole120168260.140 Why?
Systole120169920.140 Why?
Cardiac Surgical Procedures2201932490.130 Why?
Heart Atria1201912170.130 Why?
Ventricular Function, Right120165430.130 Why?
Aorta, Abdominal120157130.120 Why?
Ultrasonography, Interventional1202014730.120 Why?
Radiography, Interventional1201811060.110 Why?
Angioplasty, Balloon120157710.110 Why?
Young Adult52020535700.100 Why?
Catheterization1201515110.100 Why?
Aorta, Thoracic1201510300.100 Why?
Infant, Newborn52020230960.100 Why?
Drug Administration Schedule1201851840.100 Why?
Aortic Valve Stenosis1202016810.090 Why?
Adolescent52020821340.090 Why?
Humans1520206553610.090 Why?
Drug Therapy, Combination1201865520.090 Why?
Ultrasonography1202057300.080 Why?
Male1020203419900.080 Why?
Linear Models1201660710.080 Why?
Female920203631150.070 Why?
Prospective Studies22018464980.040 Why?
Polytetrafluoroethylene120182530.040 Why?
Severity of Illness Index12015158910.040 Why?
Adult320202051600.040 Why?
Anastomosis, Surgical120189070.040 Why?
Transplantation, Autologous1201820280.030 Why?
Intensive Care Units, Pediatric120198650.030 Why?
Risk Assessment32020227610.030 Why?
Risk Factors42020664170.030 Why?
Time Factors32020417240.030 Why?
Gestational Age1202032030.030 Why?
Statistics, Nonparametric1201830350.030 Why?
Age Factors22019189860.030 Why?
Reoperation1202041120.030 Why?
Consensus1201822140.030 Why?
Recovery of Function1202028700.020 Why?
Hospitals, Pediatric1201816730.020 Why?
Blood Vessel Prosthesis Implantation1201812570.020 Why?
Radiation Dosage1201820480.020 Why?
Middle Aged220192095910.020 Why?
Heart Transplantation1202028080.020 Why?
Graft Survival1201836590.020 Why?
Follow-Up Studies22020387420.020 Why?
Aged120191559300.020 Why?
Kaplan-Meier Estimate1201868170.020 Why?
Length of Stay1201960190.020 Why?
Boston1201894000.020 Why?
Survival Analysis12018105660.020 Why?
Palliative Care1201829540.020 Why?
Clinical Trials as Topic1202079460.020 Why?
Predictive Value of Tests12020149460.020 Why?
Quality Improvement1201834390.020 Why?
Disease Progression12020128070.020 Why?
Databases, Factual1201874920.020 Why?
Incidence12019196310.010 Why?
Cohort Studies12018369330.010 Why?
Callahan's Networks
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Concepts (99)
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Co-Authors (43)
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Funded by the NIH National Center for Advancing Translational Sciences through its Clinical and Translational Science Awards Program, grant number UL1TR002541.