Influence of transport conditions on infusion pumps performance and triggering alarms: A simulation-based research.

BACKGROUND: Critical care transport is an essential component of care system. Inadequacies in equipment, during the interhospital transport can lead to adverse event. OBJECTIVES: To verify the influence of physical transport conditions in the infusion pumps (IPs) performance and alarm activation. METHODS: Simulation-based study about IPs use during interhospital ground transportation. There were 54 simulations (18 flowmetric, 18 volumetric, 18 syringe IPs). The equipment were tested at 01, 05 and 50mL/h infusion flow. Descriptive and inferential statistical analysis, with a 5% significance level was performed. RESULTS: The effectively infused volume was lower than the expected volume for the 3 IPs types. Vibration was the variable with highest correlation in volume difference. Flowmetric IPs showed higher alarm frequency (50.0%), followed by syringe IPs (27.8%). Free flow predominated in flowmetric IP and airline and occlusion alarms in volumetric and syringe IP. Error percentage of delivered fluid ranged from 2.8% to 25.9% being more evident in flowmeter IPs. CONCLUSION: The infusion pumps showed infusion misfunctioning when subjected to physical transport conditions. Syringe IPs were more accurate for low flow administration, while for the administration of solutions at higher flow rate, the volumetric IP showed the highest accuracy.

Incidence and Factors Associated with Delirium in Children in a Single Pediatric Intensive Care Unit in Brazil.

PURPOSE: To identify the incidence of delirium in a Pediatric Intensive Care Unit (PICU); to determine the factors associated with the occurrence of delirium and the agreement between two scales used for detection of pediatric delirium in critically ill children. DESIGNS AND METHOD: Descriptive longitudinal study carried out in a PICU. The sample consisted of 65 critically ill children admitted to the PICU, with more than 24 h of hospitalization, excluding children with neurological or cognitive impairment, hearing and visual impairment, chronic encephalopathy and declining consent to participate in the study. Two scales were applied, the Cornell Assessment of Pediatric Delirium (CAPD) and the Sophia Observation Withdrawal Symptoms - Pediatric Delirium Scale (SOS_PD). Descriptive and inferential statistical analysis, with a 5% significance level was performed. RESULTS: Delirium was identified in 7.7% of children, with duration of the disorder of about 2 days. A very good agreement (Kappa = 1; p-value <0.001) between the two scales was identified. CAPD presented positive predictive value of 80.0%. There was a statistical association between the occurrence of delirium and age less than 2 years (p = 0.060); female gender (p = 0.057); use of mechanical pulmonary ventilation (p = 0.034); antiemetics (p = 0.002); anticholinergics (p = 0.044), and changes in serum sodium and potassium (p = 0.053). CONCLUSION: Demographic, clinical, and pharmacological conditions were associated with the occurrence of delirium. PRACTICE IMPLICATIONS: Routine monitoring is the first step to any delirium prevention strategies, so delirium screening by the bedside nurse must be valued through a commitment to education and training.

Hand hygiene compliance and behavioural determinants in a paediatric intensive care unit: An observational study.

BACKGROUND: Hand hygiene is considered the single most effective means of reducing healthcare-associated infections, but improving and sustaining hand hygiene compliance remains a great challenge. OBJECTIVES: To compare hand hygiene compliance before and after interventions to promote adherence in a paediatric intensive care unit (PICU) and to identify predictors of intention to perform the behaviour "hand hygiene during patient care in the PICU". METHODS: A before and after study was conducted in three phases. Based on the World Health Organization guideline for hand hygiene compliance monitoring, 1261 hand hygiene opportunities were directly observed during routine patient care by two observers simultaneously, in a nine-bed PICU in Brazil, before and after infrastructure and educational interventions. To identify predictors of healthcare professionals' intention to perform the behaviour hand hygiene during patient care, a data collection instrument was designed based on the Theory of Planned Behaviour. Statistical analyses were undertaken using Chi-square test or the Fisher's exact test and regression analysis. A significance level of 5% (p < 0.05) was applied to all analyses. RESULTS: The hand hygiene compliance rate increased significantly from 27.3% in the "pre-intervention phase" to 33.1% in "phase 1-post-intervention," to 37.0% in "phase 2-post-intervention" (p = .010). Perceived social pressure (p = .026) was a determinant factor of intention to perform the behaviour. CONCLUSIONS: Hand hygiene compliance raised significantly after infrastructure, educational, and performance feedback interventions. However, despite the significant effect of the implemented interventions, the overall hand hygiene compliance rate was low. Perceived social pressure characterised a determinant factor of intention to perform the behaviour "hand hygiene during patient care in the PICU", reinforcing the need for behaviour determinants analysis when designing promotional interventions.

Randomized crossover trial of endotracheal tube suctioning systems use in newborns.

BACKGROUND: Maintaining endotracheal tube patency is critical for neonates receiving mechanical ventilation. Endotracheal tube suctioning removes accumulated secretions preventing potential adverse events, however is also potentially hazardous to the patient. OBJECTIVE: To compare respiratory rate, arterial blood oxygen saturation, heart rate and pain in newborns undergoing endotracheal tube suctioning with closed (CS) and open (OS) systems. METHODS: Randomized crossover trial with 13 newborns from two Brazilian hospitals. The respiratory rate, arterial blood oxygen saturation, heart rate and pain (Premature Infant Pain Profile) were analysed: immediately before (T1), during (T2), immediately after (T3), 10 min after (T4) and 30 min (T5) after endotracheal suctioning. RESULTS: The majority (11/85·0%) of the newborns were premature and 45% weighed less than 1000 g. No statistically significant difference was identified according to the use of CS or OS to all the parameters investigated. The main results demonstrated that in T2 arterial blood oxygen saturation was higher with CS (CS 93·0%; OS 89 · 0%; p = 0·561). In T3 there was an increase in respiratory rate average only with the use of OS (T1 50·0; T3 56·0). The pain score in T2 and heart rate in T3 were higher with OS without significant differences (p = 0·114; p = 0·479, respectively). CONCLUSION: There was no significant difference in the studied clinical parameters or presence and intensity of pain according to the two investigated techniques of endotracheal tube suctioning. RELEVANCE TO CLINICAL PRACTICE: This research can provide support for clinical practice regarding endotracheal tube suctioning of newborns describing that the use of closed systems was similar to the open system regarding pain presence and intensity, as well as, in the clinical effects analysed, in accordance with other studies produced in this field.

Oral care interventions and oropharyngeal colonization in children receiving mechanical ventilation.

BACKGROUND: Recent progress in identification of oral microorganisms has shown that the oropharynx can be a site of origin for dissemination of pathogenic organisms to distant body sites, such as the lungs. OBJECTIVE: To compare the oropharyngeal microbiological profile, duration of mechanical ventilation, and length of stay in the intensive care unit of children receiving mechanical ventilation who had pharmacological or nonpharmacological oral care. METHODS: A randomized and controlled study was performed in a pediatric intensive unit in São Paulo, Brazil. A total of 56 children were randomly assigned to an experimental group (n=27, 48%) that received oral care with use of 0.12% chlorhexidine digluconate or a control group (n=29, 52%) that received oral care without an antiseptic. Oropharyngeal secretions were collected and cultured on days 0, 2, and 4, and at discharge. RESULTS: The 2 groups had similar demographic characteristics, preexisting underlying diseases, and pharmacological, nutritional, and ventilatory support. Gram-negative bacteria were the predominant pathogens: Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Enter-obacter species. The 2 groups did not differ significantly in the colonization of normal (P= .72) or pathogenic (P= .62) flora, in the duration of mechanical ventilation (P= .67), or in length of stay in the intensive care (P= .22). CONCLUSION: Use of chlorhexidine combined with nonpharmacological oral care did not decrease the colonization profile, duration of mechanical ventilation, or length of stay in critically ill children receiving mechanical ventilation.

Subjective assessment of backrest elevation: magnitude of error.

BACKGROUND: Backrest elevation, defined as the angle of the backrest height above the horizontal position, is a common nursing intervention that is often used by subjective visual estimation in critically ill patients. OBJECTIVES: The aim of the study was to describe the magnitude of error during the subjective assessment of backrest elevation. METHODS: This prospective study was conducted in a sample of 160 subjects: 97 registered nurses, 48 undergraduate nursing students, and 15 nursing assistants. Data were collected by recording the degrees of backrest elevation identified by the subjects through an individual random presentation of the selected study angles of 20 degrees, 30 degrees, 35 degrees, 40 degrees, and 45 degrees. A measurement instrument was developed for determination of the angles. RESULTS: Of the 800 investigated angles, 14.9% were estimated accurately, 61.6% were overestimated, and 23.5% were underestimated, with an error average of 8 degrees (+/-13.5 degrees). It was determined that the larger the angle estimated, the greater the average error. A statically significant difference (P

Variabilidade na determinação do ponto externo de referência para a medida de pressão venosa central em crianças / Variability in the establishment of an external reference point for central venous pressure measurement in children

OBJETIVO: Verificar variabilidade na determinação da linha axilar média como ponto externo de referência (PER), por diferentes profissionais de saú de, para a aferição de pressão venosa central em crianças. MÉTODOS: Estudo descritivo e de correlação realizado em uma unidade de cuidados intensivos pediátricos de um hospital universitário. Durante a determinação da linha axilar média como PER para a aferição da pressão venosa central, cinco avaliações realizadas no mesmo paciente por profissionais de saúde e uma realizada por um avaliador treinado foram comparadas. O resultado foi um total de 120 indicações de 44 profissionais de saúde, 17 (38,6 por cento) auxiliares e técnicos de enfermagem, 16 (36,3 por cento) enfermeiros e 11 (25,1 por cento) médicos, além de 24 identificações realizadas por avaliador treinado. Os dados foram analisados utilizando os testes do qui-quadrado, ANOVA, Kruskall-Wallis e teste t, fixando o nível de significância em 5 por cento. RESULTADOS: Houve diferença significante entre as identificações realizadas pelos profissionais de saúde e pelo avaliador (p < 0,001). Comparando a variabilidade das medidas realizadas pelos profissionais, 56 (46,7 por cento) foram menores do que a identificação do avaliador (variação de -0,5 até -9), 44 (36,7 por cento) foram maiores (variação de 0,5 até 4) e 20 (16,7 por cento) foram coincidentes (variação nula). Não se identificou influência da categoria profissional sobre a concordância entre os PER indicados (p = 0,899), tampouco na variabilidade observada (p = 0,778). Observou-se, contudo, que profissionais com maior tempo de experiência em unidades de cuidados intensivos demonstraram uma tendência a maior variabilidade com as medidas dos avaliadores. CONCLUSÃO: Verificou-se variabilidade nas indicações da linha axilar média como PER entre os profissionais e o avaliador treinado. A variabilidade não foi influenciada pela categoria profissional e quanto maior o tempo de experiência do profissional, maior...

OBJECTIVE: To investigate the variability in the establishment of the midaxillary line as external reference point (ERP), by different healthcare workers, for the measurement of central venous pressure in children. METHODS: Descriptive and correlational study carried out in a pediatric intensive care unit of a teaching hospital. During the establishment of the midaxillary line as ERP for central venous pressure measurement, five assessments of the same patient made by healthcare workers and one assessment made by a trained evaluator were compared. A total of 120 assessments were made by 44 healthcare workers, 17 (38.6 percent) by nursing assistants and nursing technicians, 16 (36.3 percent) by nurses and 11 (25.1 percent) by physicians, in addition to 24 assessments made by the trained evaluator. The data were analyzed using the chi-square test, ANOVA, Kruskal-Wallis test and t test. Significance level was set at 5 percent. RESULTS: There was statistically significant difference between the assessments made by healthcare workers and by the evaluator (p < 0.001). The comparison of the variability in the measurements made by healthcare workers revealed that 56 (46.7 percent) measurements were lower than those obtained by the evaluator (range from -0.5 to -9), 44 (36.7 percent) were higher (range from 0.5 to 4) and 20 (16.7 percent) were concordant (zero variability). Professional category did not influence the concordance between the ERPs (p = 0.899), or the variability observed (p = 0.778). However, the measurements made by professionals with greater experience in intensive care tended to differ more sharply from those made by the evaluators. CONCLUSION: The indications of the midaxillary line as ERP presented variations when measured by the healthcare team and by the trained evaluator. Variability was not influenced by professional category, and the more experienced the healthcare worker, the greater the probability for underestimation of the ERP...

Variability in the establishment of an external reference point for central venous pressure measurement in children.

OBJECTIVE: To investigate the variability in the establishment of the midaxillary line as external reference point (ERP), by different healthcare workers, for the measurement of central venous pressure in children. METHODS: Descriptive and correlational study carried out in a pediatric intensive care unit of a teaching hospital. During the establishment of the midaxillary line as ERP for central venous pressure measurement, five assessments of the same patient made by healthcare workers and one assessment made by a trained evaluator were compared. A total of 120 assessments were made by 44 healthcare workers, 17 (38.6%) by nursing assistants and nursing technicians, 16 (36.3%) by nurses and 11 (25.1%) by physicians, in addition to 24 assessments made by the trained evaluator. The data were analyzed using the chi-square test, ANOVA, Kruskal-Wallis test and t test. Significance level was set at 5%. RESULTS: There was statistically significant difference between the assessments made by healthcare workers and by the evaluator (p < 0.001). The comparison of the variability in the measurements made by healthcare workers revealed that 56 (46.7%) measurements were lower than those obtained by the evaluator (range from -0.5 to -9), 44 (36.7%) were higher (range from 0.5 to 4) and 20 (16.7%) were concordant (zero variability). Professional category did not influence the concordance between the ERPs (p = 0.899), or the variability observed (p = 0.778). However, the measurements made by professionals with greater experience in intensive care tended to differ more sharply from those made by the evaluators. CONCLUSION: The indications of the midaxillary line as ERP presented variations when measured by the healthcare team and by the trained evaluator. Variability was not influenced by professional category, and the more experienced the healthcare worker, the greater the probability for underestimation of the ERP. According to the results of this study, such situations may compromise both the efficacy of this procedure and patient safety.