Shortening ventilatory support with a protocol based on daily extubation screening and noninvasive ventilation in selected patients

BACKGROUND: Prolonged invasive mechanical ventilation and reintubation are associated with adverse outcomes and increased mortality. Daily screening to identify patients able to breathe without support is recommended to reduce the length of mechanical ventilation. Noninvasive positive-pressure ventilation has been proposed as a technique to shorten the time that patients remain on invasive ventilation. METHODS: We conducted a before-and-after study to evaluate the efficacy of an intervention that combined daily screening with the use of noninvasive ventilation immediately after extubation in selected patients. The population consisted of patients who had been intubated for at least 2 days. RESULTS: The baseline characteristics were similar between the groups. The intervention group had a lower length of invasive ventilation (6 [4;9] vs. 7 [4;11.5] days, p = 0.04) and total (invasive plus noninvasive) ventilator support (7 [4;11] vs. 9 [6;8], p = 0.01). Similar reintubation rates within 72 hours were observed for both groups. In addition, a lower ICU mortality was found in the intervention group (10.8% vs. 24.3%, p = 0.03), with a higher cumulative survival probability at 60 days (p = 0.05). Multivariate analysis showed that the intervention was an independent factor associated with survival (RR: 2.77; CI 1.14-6.65; p = 0.03), whereas the opposite was found for reintubation at 72 hours (RR: 0.27; CI 0.11-0.65; p = 0.01). CONCLUSION: The intervention reduced the length of invasive ventilation and total ventilatory support without increasing the risk of reintubation and was identified as an independent factor associated with survival

Physiotherapy Care of Patients with Coronavirus Disease 2019 (COVID-19) - A Brazilian Experience

Some patients with coronavirus disease (COVID-19) present with severe acute respiratory syndrome, which causes multiple organ dysfunction, besides dysfunction of the respiratory system, that requires invasive procedures. On the basis of the opinions of front-line experts and a review of the relevant literature on several topics, we proposed clinical practice recommendations on the following aspects for physiotherapists facing challenges in treating patients and containing virus spread: 1. personal protective equipment, 2. conventional chest physiotherapy, 3. exercise and early mobilization, 4. oxygen therapy, 5. nebulizer treatment, 6. noninvasive ventilation and high-flow nasal oxygen, 7. endotracheal intubation, 8. protective mechanical ventilation, 9. management of mechanical ventilation in severe and refractory cases of hypoxemia, 10. prone positioning, 11. cuff pressure, 12. tube and nasotracheal suction, 13. humidifier use for ventilated patients, 14. methods of weaning ventilated patients and extubation, and 15. equipment and hand hygiene. These recommendations can serve as clinical practice guidelines for physiotherapists. This article details the development of guidelines on these aspects for physiotherapy of patients with COVID-19

Evaluación del efecto Hawthorne durante la manipulación del catéter venoso central

Objetivos: Descrever o cumprimento das práticas de higienização das mãos e desinfecção dos conectores antes da manipulação do cateter venoso central antes e após intervenção educativa. A adesão à higienização das mãos foi avaliada por observação direta e câmera de vídeo. Métodos: Estudo antes e depois realizado com a equipe de enfermagem em unidade de terapia intensiva para adultos, em São Paulo, Brasil, com 180 observações com câmeras de vídeo e observação direta. A adesão à higienização das mãos antes da manipulação do cateter e à técnica correta e desinfecção do conector por cinco segundos foram observadas. Resultados: Quando as câmeras de vídeo foram observadas, a adesão à higiene das mãos aumentou de 46% para 66% e o uso da técnica adequada aumentou de 23% para 46% (p < 0,05). Em relação à adesão à desinfecção do conector, não foi observada diferença entre os períodos. A adesão à higienização das mãos na observação direta aumentou de 83% para 87% e na indireta, de 46% para 66% após a intervenção. Conclusão Após a intervenção educativa, houve melhora na adesão à higienização das mãos antes da manipulação do cateter venoso central e no uso da técnica correta. Quando observada indiretamente, a adesão a essas práticas foi menor, reforçando o efeito Hawthorne.Objetivo: Describir el cumplimiento de las prácticas de higiene de manos y desinfección del hub antes de la manipulación del catéter venoso central en dos momentos: antes y después de la intervención educativa. La adherencia a la higiene de manos se evaluó con dos métodos: observación directa y cámara de video. Métodos: Estudio antes-después realizado con el equipo de enfermería en una unidad de cuidados intensivos de adultos, en São Paulo, Brasil, que incluye 180 observaciones utilizando cámaras de video y observación directa. Se observaron el cumplimiento de la higiene de manos antes de la manipulación del catéter y el cumplimiento de la técnica correcta y la desinfección del hub durante cinco segundos. Resultados: Cuando se observó la grabación de cámaras de video, el cumplimiento de la higiene de manos aumentó del 46% al 66% y el uso de la técnica adecuada aumentó del 23% al 46% (p<0,05). En cuanto al cumplimiento de la desinfección de hubs, no se observó diferencia entre los períodos. El cumplimiento de la higiene de manos en observación directa aumentó del 83% al 87% y en observación indirecta del 46% al 66% tras la intervención. Conclusión: Después de la intervención educativa mejoró el cumplimiento de la higiene de manos antes de la manipulación del CVC y el uso de la técnica correcta. Cuando se observó indirectamente, la adherencia a estas prácticas fue menor, reforzando el efecto Hawthorne.Objectives: To describe the compliance to the practices of hand hygiene and hub disinfection before manipulation of the central venous catheter in two moments: before and after educational intervention. Adherence to hand hygiene was assessed with two methods: direct observation and video camera. Methods: Before and after study conducted with the nursing team in an adult intensive care unit, in São Paulo, Brazil, including 180 observations using video cameras and direct observation. Hand hygiene compliance before catheter manipulation and compliance with the correct technique and the hub disinfection for five seconds were observed. Results: When video cameras recording was observed, hand hygiene compliance increased from 46% to 66% and the use of the proper technique increased from 23% to 46% (p < 0.05). Regarding hub disinfection compliance, no difference was observed between the periods. Hand hygiene compliance in direct observation increased from 83% to 87% and in indirect observation, from 46% to 66% after the intervention. Conclusion: After the educational intervention, hand hygiene compliance before CVC manipulation and the use of the correct technique improved. When observed indirectly, the adherence to these practices was lower, reinforcing the Hawthorne effect

Impact on the ability of healthcare professionals to correctly identify patient-ventilator asynchronies of the simultaneous visualization of estimated muscle pressure curves on the ventilator display: a randomized study (P mus study)

Abstract Background Patient-ventilator asynchronies are usually detected by visual inspection of ventilator waveforms but with low sensitivity, even when performed by experts in the field. Recently, estimation of the inspiratory muscle pressure (P mus) waveforms through artificial intelligence algorithm has been proposed (Magnamed®, São Paulo, Brazil). We hypothesized that the display of these waveforms could help healthcare providers identify patient-ventilator asynchronies. Methods A prospective single-center randomized study with parallel assignment was conducted to assess whether the display of the estimated Pmus waveform would improve the correct identification of asynchronies in simulated clinical scenarios. The primary outcome was the mean asynchrony detection rate (sensitivity). Physicians and respiratory therapists who work in intensive care units were randomized to control or intervention group. In both groups, participants analyzed pressure and flow waveforms of 49 different scenarios elaborated using the ASL-5000 lung simulator. In the intervention group the estimated P mus waveform was displayed in addition to pressure and flow waveforms. Results A total of 98 participants were included, 49 per group. The sensitivity per participant in identifying asynchronies was significantly higher in the P mus group (65.8 ± 16.2 vs. 52.94 ± 8.42, p < 0.001). This effect remained when stratifying asynchronies by type. Conclusions We showed that the display of the P mus waveform improved the ability of healthcare professionals to recognize patient-ventilator asynchronies by visual inspection of ventilator tracings. These findings require clinical validation. Trial registration: ClinicalTrials.gov: NTC05144607. Retrospectively registered 3 December 2021