A Pilot Evaluation of a Capacitance-Based Automatic Urinometer in a Pediatric Intensive Care Setting
Slettengren, Martin, MD1,2; Wetterfall, Hanna, MD2; Eklund, Anton, MD2; van der Linden, Jan, MD, PhD1,2
Pediatric Critical Care Medicine: June 4, 2019 - Volume Online First - Issue - p
doi: 10.1097/PCC.0000000000002000
Renal Critical Care: PDF Only
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Abstract
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Objectives: To compare a modified capacitance-based automatic urinometer to a manual urinometer, with regard to precision of measurement and to evaluate the staff’s opinion regarding the automatic urinometer.
Design: Prospective observational cohort study.
Setting: PICU at Astrid Lindgren’s Children Hospital in Solna, Sweden.
Patients: Twelve children weighing up to 10 kg with an indwelling urinary catheter in place before enrollment.
Interventions: Measurement of hourly diuresis using either an automatic urinometer or manual urinometer.
Measurements and Main Results: Hourly diuresis was measured with an automatic urinometer (n = 127; Sippi; Observe Medical Nordic AB, Gothenburg, Sweden) or an manual urinometer (n = 83; Unometer Safeti Plus; Convatec, Lejre, Denmark) and thereafter validated with a measuring cylinder. The absolute mean bias was –1.1 mL for the automatic urinometer (CI, –0.6 to –1.5) and –0.6 mL (CI, ± 0.0 to –1.2) for the manual urinometer (p = 0.21). The SDs were 2.6 and 2.8 mL, respectively. User evaluation comparing the automatic urinometer with the manual urinometer concerning the ease of use was made with a questionnaire (n = 18). The majority of staff preferred the automatic urinometer to the manual urinometer in terms of ease of use, learning, and handling.
Conclusions: The two urinometers were comparable in performance for children weighing up to 10 kg. Taking into account the overwhelming staff satisfaction with the automatic urinometer and benefits in less well-staffed wards as well as lack of temporal deviation, the modified automatic urinometer may be considered for clinical use in the PICU.
©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies
Slettengren, Martin, MD1,2; Wetterfall, Hanna, MD2; Eklund, Anton, MD2; van der Linden, Jan, MD, PhD1,2
Pediatric Critical Care Medicine: June 4, 2019 - Volume Online First - Issue - p
doi: 10.1097/PCC.0000000000002000
Renal Critical Care: PDF Only
BUY
SDC
PAP
Abstract
Author Information
Article Metrics
Objectives: To compare a modified capacitance-based automatic urinometer to a manual urinometer, with regard to precision of measurement and to evaluate the staff’s opinion regarding the automatic urinometer.
Design: Prospective observational cohort study.
Setting: PICU at Astrid Lindgren’s Children Hospital in Solna, Sweden.
Patients: Twelve children weighing up to 10 kg with an indwelling urinary catheter in place before enrollment.
Interventions: Measurement of hourly diuresis using either an automatic urinometer or manual urinometer.
Measurements and Main Results: Hourly diuresis was measured with an automatic urinometer (n = 127; Sippi; Observe Medical Nordic AB, Gothenburg, Sweden) or an manual urinometer (n = 83; Unometer Safeti Plus; Convatec, Lejre, Denmark) and thereafter validated with a measuring cylinder. The absolute mean bias was –1.1 mL for the automatic urinometer (CI, –0.6 to –1.5) and –0.6 mL (CI, ± 0.0 to –1.2) for the manual urinometer (p = 0.21). The SDs were 2.6 and 2.8 mL, respectively. User evaluation comparing the automatic urinometer with the manual urinometer concerning the ease of use was made with a questionnaire (n = 18). The majority of staff preferred the automatic urinometer to the manual urinometer in terms of ease of use, learning, and handling.
Conclusions: The two urinometers were comparable in performance for children weighing up to 10 kg. Taking into account the overwhelming staff satisfaction with the automatic urinometer and benefits in less well-staffed wards as well as lack of temporal deviation, the modified automatic urinometer may be considered for clinical use in the PICU.
©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies
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