C
Cor J. Kalkman
Researcher at Utrecht University
Publications - 235
Citations - 15181
Cor J. Kalkman is an academic researcher from Utrecht University. The author has contributed to research in topics: Perioperative & Vital signs. The author has an hindex of 55, co-authored 224 publications receiving 13057 citations. Previous affiliations of Cor J. Kalkman include University Medical Center Utrecht.
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Journal ArticleDOI
Pain intensity on the first day after surgery: a prospective cohort study comparing 179 surgical procedures.
Hans J. Gerbershagen,Sanjay Aduckathil,Albert J.M. van Wijck,Linda M. Peelen,Cor J. Kalkman,Winfried Meissner +5 more
TL;DR: Several common minor- to medium-level surgical procedures, including some with laparoscopic approaches, resulted in unexpectedly high levels of postoperative pain, including appendectomy, cholecystectomy, hemorrhoidectomy, and tonsillectomy.
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Preoperative prediction of severe postoperative pain
TL;DR: It is demonstrated that severe postoperative pain early after awakening from general anesthesia can be predicted with a scoring rule, using a small set of variables that can be easily obtained from all patients at the preoperative visit.
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Incidence of intraoperative hypotension as a function of the chosen definition: literature definitions applied to a retrospective cohort using automated data collection.
Jilles B. Bijker,Wilton A. van Klei,Teus H. Kappen,Leo van Wolfswinkel,Karel G.M. Moons,Cor J. Kalkman +5 more
TL;DR: There is no widely accepted definition of Intraoperative hypotension and the relation between threshold values from the literature and IOH incidence shows an S-shaped cumulative incidence curve, with occurrence frequencies of IOH varying from 5% to 99%.
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Cognitive outcome after off-pump and on-pump Coronary artery bypass graft surgery a Randomized trial
Diederik van Dijk,Erik W.L. Jansen,Ron Hijman,Arno P. Nierich,Jan C. Diephuis,Karel G.M. Moons,Jaap R. Lahpor,Cornelius Borst,Annemieke M. A. Keizer,Hendrik M. Nathoe,Diederick E. Grobbee,Peter de Jaegere,Cor J. Kalkman +12 more
TL;DR: Patients who received their first CABG surgery without cardiopulmonary bypass had improved cognitive outcomes 3 months after the procedure, but the effects were limited and became negligible at 12 months.
Journal ArticleDOI
A comparison of on-pump and off-pump coronary bypass surgery in low-risk patients.
Hendrik M. Nathoe,Diederik van Dijk,Erik W.L. Jansen,Willem J.L. Suyker,Jan C. Diephuis,Wim-Jan van Boven,Aart Brutel de la Rivière,Cornelius Borst,Cor J. Kalkman,Diederick E. Grobbee,Erik Buskens,Peter de Jaegere +11 more
TL;DR: In low-risk patients, there was no difference in cardiac outcome at one year between those who underwent on-pump bypass surgery and those who undergo off-p Pump surgery, and off-Pump surgery was more cost effective.