User profiles for K. Waak

Christiaan van der Kwaak

Associate Professor
Verified email at rug.nl
Cited by 285

Early, goal-directed mobilisation in the surgical intensive care unit: a randomised controlled trial

…, T Peponis, D Talmor, GC Velmahos, K Waak… - The Lancet, 2016 - thelancet.com
Background Immobilisation predicts adverse outcomes in patients in the surgical intensive
care unit (SICU). Attempts to mobilise critically ill patients early after surgery are frequently …

Early mobilization in critically ill patients: patients' mobilization level depends on health care provider's profession

J Garzon-Serrano, C Ryan, K Waak, R Hirschberg… - Pm&r, 2011 - Elsevier
Objective To evaluate whether the level of mobilization achieved and the barriers for
progressing to the next mobilization level differ between nurses and physical therapists. Design …

The surgical intensive care unit optimal mobility score predicts mortality and length of stay

…, C Ryan, S Tully, R Hirschberg, K Waak… - Critical care …, 2012 - journals.lww.com
… There was substantial agreement between raters based on the kappa statistic (k = 0.80;
95% CI 0.702–0.898). Validity was tested in two steps. First, we compared the average SOMS …

Muscle weakness predicts pharyngeal dysfunction and symptomatic aspiration in long-term ventilated patients

…, J Mello, S Joseph, MJ Meyer, K Waak… - …, 2013 - pubs.asahq.org
Background: Prolonged mechanical ventilation is associated with muscle weakness,
pharyngeal dysfunction, and symptomatic aspiration. The authors hypothesized that muscle …

Global muscle strength but not grip strength predicts mortality and length of stay in a general population in a surgical intensive care unit

JJ Lee, K Waak, M Grosse-Sundrup, F Xue… - Physical …, 2012 - academic.oup.com
… Lee and Dr Waak contributed equally to taking measurements and writing the article. Dr Waak
Lee and Dr Waak provided study participants. Dr Eikermann provided institutional liaisons. …

Feasibility and Validity of the Coma Recovery Scale‐Revised for Accelerated Standardized Testing: A Practical Assessment Tool for Detecting Consciousness in the …

…, N Mazwi, P Ni, G Velmahos, K Waak… - Annals of …, 2023 - Wiley Online Library
We developed and validated an abbreviated version of the Coma Recovery Scale‐Revised (CRS‐R),
the CRS‐R For Accelerated Standardized Testing (CRSR‐FAST), to detect …

Effects of the level and duration of mobilization therapy in the surgical ICU on the loss of the ability to live independently: an international prospective cohort study

…, B Teja, K Wongtangman, N Mazwi, K Waak… - Critical care …, 2021 - journals.lww.com
OBJECTIVES: It is unclear whether early mobilization in the surgical ICU helps improve
patients’ functional recovery to a level that enables independent living. We assessed dose of …

Surgical Intensive Care Unit Optimal Mobilisation Score (SOMS) trial: a protocol for an international, multicentre, randomised controlled trial focused on goal-directed …

MJ Meyer, AB Stanislaus, J Lee, K Waak, C Ryan… - BMJ open, 2013 - bmjopen.bmj.com
Introduction Immobilisation in the intensive care unit (ICU) leads to muscle weakness and is
associated with increased costs and long-term functional disability. Previous studies …

[HTML][HTML] Factors influencing the utilization of maternal health care services by nomads in Sudan

B El Shiekh, A van der Kwaak - Pastoralism, 2015 - Springer
Sudan has high maternal mortality. The rate among nomads - groups of people who move
from place to place as a way of obtaining food, finding pasture or make a living - is very high …

Prospective observational study of predictors of re-intubation following extubation in the surgical ICU

A Piriyapatsom, EC Williams, K Waak, KS Ladha… - Respiratory …, 2016 - rc.rcjournal.com
BACKGROUND: Re-intubation is associated with high morbidity and mortality. There is limited
information regarding the risk factors that predispose patients admitted to the surgical ICU …