Hypokalaemia in hospitalised patients.

QUESTIONS UNDER STUDY: Hypokalaemia in inpatients is common, and is associated with morbidity and mortality. Its management is risky and not always effective. We launched an educational programme with the aim of increasing the rate of potassium normalisation during hospital stay, and of reducing unmonitored cases. METHODS: The project consisted of three phases: (I) retrospective analysis on 26 471 patients hospitalised in 2012 in five acute care hospitals of southern Switzerland (Ente Ospedaliero Cantonale, EOC) with identification of improvement goals on a sample survey (588 cases of hypokalaemia); (II) revision of internal guidelines, and implementation of educational activities in one of the five hospitals (Ospedale Regionale di Locarno, ODL); (III) follow-up analysis on the 26 726 patients hospitalised in 2014 and second sampling to complete the evaluation of the efficacy of the intervention. RESULTS: Phase I, ODL vs EOC: prevalence of hypokalaemia, 21.7 vs 23.2% (p <0.05); treated 53.1 vs 56.5% (not significant); normalisation 62.4 vs 61.1% (ns); absence of monitoring 18.3 vs 21.1% (p <0.05); time to normalisation 3.0 ± 2.7 vs 2.8 ± 2.4 days (ns); secondary hyperkalaemia 1.1 vs 1.4% (ns). Length of stay hypokalaemic vs normokalaemic 11.2 ± 11.7 vs 6.6 ± 7.9 days (p <0.001); falls 3.5 vs 1.7% (p <0.001), deaths 5.1 vs 3.1% (p <0.001). The severity/performance ratio suggested inefficiency. Phase III, ODL 2012 vs ODL 2014: treated 53.1 vs 75.7% (p <0.001); normalisation 62.4 vs 69.7% (p <0.01); absence of monitoring 20.1 vs 8.7 (p <0.01); time to normalisation 3.1 ± 2.7 vs 2.4 ± 2.6 days (ns); secondary hyperkalaemia 1.1 vs 1.8% (ns). CONCLUSIONS: The management of hypokalaemia is characterised by dysfunctions; it can, however, be ameliorated by the implementation of internal guidelines and targeted educational activities. The length of hospital stay is increased in patients with hypokalaemia, shifting the expected length of hospital stay based on the Swiss Diagnosis Related Group classification.

Adverse event reporting in adult intensive care units and the impact of a multifaceted intervention on drug-related adverse events.

BACKGROUND: Adverse events (AEs) frequently occur in intensive care units (ICUs) and affect negatively patient outcomes. Targeted improvement strategies for patient safety are difficult to evaluate because of the intrinsic limitations of reporting crude AE rates. Single interventions influence positively the quality of care, but a multifaceted approach has been tested only in selected cases. The present study was designed to evaluate the rate, types, and contributing factors of emerging AEs and test the hypothesis that a multifaceted intervention on medication might reduce drug-related AEs. METHODS: This is a prospective, multicenter, before-and-after study of adult patients admitted to four ICUs during a 24-month period. Voluntary, anonymous, self-reporting of AEs was performed using a detailed, locally designed questionnaire. The temporal impact of a multifaceted implementation strategy to reduce drug-related AEs was evaluated using the risk-index scores methodology. RESULTS: A total of 2,047 AEs were reported (32 events per 100 ICU patient admissions and 117.4 events per 1,000 ICU patient days) from 6,404 patients, totaling 17,434 patient days. Nurses submitted the majority of questionnaires (n = 1,781, 87%). AEs were eye-witnessed in 49% (n = 1,003) of cases and occurred preferentially during an elective procedure (n = 1,597, 78%) and on morning shifts (n = 1,003, 49%), with a peak rate occurring around 10 a.m. Drug-related AEs were the most prevalent (n = 984, 48%), mainly as a consequence of incorrect prescriptions. Poor communication among caregivers (n = 776) and noncompliance with internal guidelines (n = 525) were the most prevalent contributing factors for AE occurrence. The majority of AEs (n = 1155, 56.4%) was associated with minimal, temporary harm. Risk-index scores for drug-related AEs decreased from 10.01 ± 2.7 to 8.72 ± 3.52 (absolute risk difference 1.29; 95% confidence interval, 0.88-1.7; p < 0.01) following the introduction of the intervention. CONCLUSIONS: AEs occurred in the ICU with a typical diurnal frequency distribution. Medication-related AEs were the most prevalent. By applying the risk-index scores methodology, we were able to demonstrate that our multifaceted implementation strategy focused on medication-related adverse events allowed to decrease drug related incidents.