Prominent publications by Richard M Royall

KOL Index score: 12228

BACKGROUND: Cognitive impairment after coronary artery bypass grafting (CABG) is well recognized, but previous investigations have been limited by lack of an appropriate control group. We compared changes in cognitive performance at 3 and 12 months after CABG with those in a control group of patients with comparable risk factors for coronary artery disease (CAD) who had not undergone surgery.

METHODS: Patients undergoing CABG (n = 140) and demographically similar nonsurgical control ...

Also Ranks for: Coronary Artery Disease |  artery bypass |  nonsurgical controls |  patients cabg |  3 months
KOL Index score: 12221

OBJECTIVE: To determine the long-term (preoperative to 5 years postoperative) and late (1-5 years postoperative) changes in cognitive test performance in patients after coronary artery bypass grafting.

SETTING: The departments of surgery and neurology at The Johns Hopkins University School of Medicine, Baltimore, Md.

PATIENTS: A group of 102 patients who completed preoperative and follow-up cognitive testing up to 5 years after coronary artery bypass grafting.


Also Ranks for: 5 Years |  coronary artery |  late decline |  bypass grafting |  cognitive domains
KOL Index score: 11540

BACKGROUND: In contrast to perioperative stroke, much less attention has been paid to those with evidence of diffuse brain encephalopathy, presenting as delirium, confusion, coma, and seizures in the immediate postoperative period.

OBJECTIVE: To determine the incidence, consequences, and predictive factors for encephalopathy and stroke following coronary artery bypass grafting.

METHODS: In a prospective evaluation of 2711 patients operated on between January 1, 1997, and December 31, ...

Also Ranks for: Encephalopathy Stroke |  coronary artery |  bypass grafting |  predictive factors |  outcomes surgery
KOL Index score: 5955

The purpose of this study was to determine whether depression 1 month after coronary artery bypass surgery would be associated with greater cardiac morbidity in patients 5 years later. The cardiac symptom most affected by depression was the recurrence of angina. Factors associated with a return of angina at 5 years were depression measured preoperatively, at 1 month, at 1 year, and at 5 years. Additional significant factors were male sex and a preoperative history of smoking, ...

Also Ranks for: Cardiac Morbidity |  coronary artery |  bypass surgery |  5 years |  1 month
KOL Index score: 2530

Opinion statementBoth stroke and encephalopathy are associated with significantly longer lengths of stay in the hospital and with significantly higher rates of mortality. Those at risk for either stroke or encephalopathy, or both of these adverse outcomes after surgery, can be identified prior to surgery using information available to physicians. For those at higher risk for these outcomes, we suggest the following: 1) An imaging study of the brain, performed prior to surgery, may ...

Also Ranks for: Stroke Encephalopathy |  artery bypass |  grafting cabg

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Richard M Royall:Expert Impact

Concepts for whichRichard M Royallhas direct influence:Coronary artery,  Coronary artery disease,  Coronary artery bypass,  Artery bypass,  Encephalopathy stroke,  Cardiac morbidity,  Late decline,  Bypass grafting.

Richard M Royall:KOL impact

Concepts related to the work of other authors for whichfor which Richard M Royall has influence:Cardiac surgery,  Coronary artery,  Cognitive decline,  Postoperative delirium,  Cardiopulmonary bypass,  Depressive symptoms,  Surgical patients.



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Zanvyl Krieger Mind/Brain Institute, Johns Hopkins University, 338 Krieger Hall, 3400 N. Charles Street, 21218-2685, Baltimore, MD, USA | Department of Biostatistics, The Johns Hopkins Bloomberg School of Public Health, , USA | The Zanvyl Krieger Min