Publications by authors named "Karen K Y Koo"

Introduction: The objective of this study was to assess the safety and feasibility of in-bed cycling started within the first 4 days of mechanical ventilation (MV) to inform a future randomized clinical trial.

Methods: We conducted a 33-patient prospective cohort study in a 21-bed adult academic medical-surgical intensive care unit (ICU) in Hamilton, ON, Canada. We included adult patients (≥ 18 years) receiving MV who walked independently pre-ICU.

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Background: The promotion of early mobilization following critical illness is tempered by national reports of patient and institutional barriers to this approach. We carried out a survey to assess current knowledge, perceptions and practices of Canadian physicians and physiotherapists with respect to acquired weakness and early mobilization in adults in the intensive care unit (ICU).

Methods: We conducted a cross-sectional, self-administered postal survey among critical care physicians and physiotherapists in all 46 academic ICUs in Canada in 2011-2012.

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Introduction: Early exercise with in-bed cycling as part of an intensive care unit (ICU) rehabilitation programme has the potential to improve physical and functional outcomes following critical illness. The objective of this study is to determine the feasibility of enrolling adults in a multicentre pilot randomised clinical trial (RCT) of early in-bed cycling versus routine physiotherapy to inform a larger RCT.

Methods And Analysis: 60-patient parallel group pilot RCT in 7 Canadian medical-surgical ICUs.

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Purpose: In shock, hypotension may contribute to inadequate oxygen delivery, organ failure and death. We conducted the Optimal Vasopressor Titration (OVATION) pilot trial to inform the design of a larger trial examining the effect of lower versus higher mean arterial pressure (MAP) targets for vasopressor therapy in shock.

Methods: We randomly assigned critically ill patients who were presumed to suffer from vasodilatory shock regardless of admission diagnosis to a lower (60-65 mmHg) versus a higher (75-80 mmHg) MAP target.

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Objective: The efficacy of systemic corticosteroids in many critical illnesses remains uncertain. Our primary objective was to survey intensivists in North America about their perceived use of corticosteroids in clinical practice.

Design: Self-administered paper survey.

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Objectives: While early mobilization is safe and enhances functional recovery in critically ill adults, rehabilitation practices in critically ill children are not well characterized. The objective of this study was to evaluate the knowledge, perceptions, and stated practices of early mobilization among physicians and physiotherapists practicing in Canadian pediatric critical care units.

Design And Measurements: A self-administered survey was mailed to 102 physicians and 35 physiotherapists.

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Objective: Randomized trials have demonstrated risks and failed to establish a clear benefit for the use of the pulmonary artery catheter. We assessed rates of pulmonary artery catheter use in multiple centers over 5 yrs, variables associated with their use, and how these variables changed over time (2002-2006).

Design: A multicenter longitudinal study using the Hamilton Regional Critical Care Database.

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