Navegando por Autor "Louzada, Cibelle Ferreira"

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Evaluation of the prevalence and factors associated with acute kidney injury in a pediatric intensive care unit.
(2021) Louzada, Cibelle Ferreira; Ferreira, Alexandre Rodrigues
Objective To assess the prevalence of acute kidney injury in pediatric intensive care unit according to diagnostic criteria – pediatric risk, injury, failure, loss, end-stage renal disease, Acute Kidney Injury Network and Acute Kidney Injury Work Group, or Kidney Disease: Improving Global Outcomes –, and determining factors associated with acute kidney injury as well as its outcome. Methodology This was a cross-sectional monocentric observational study, including patients aged between 29 days and 17 years who were admitted to the pediatric intensive care unit between January 1, 2012 and December 31, 2016. To evaluate the association between the study variables and acute kidney injury, the log-binomial generalized univariate and multivariate linear models were adjusted. Results The study included 1131 patients, with prevalence of acute kidney injury according to the Acute Kidney Injury Network and Kidney Disease: Improving Global Outcomes criteria of 12.6% and of 12.9% according to the pediatric risk, injury, failure, loss, end-stage renal disease. In the multivariate analysis of older children (PR 1.007, 95% CI: 1.005–1.009), sepsis (PR 1.641, 95% CI: 1.128–2.387), demand for ventilatory support (PR 1.547, 95% CI: 1.095–2.186), and use of vasoactive amines (PR 2.298, 95% CI: 1.681–3.142) constituted factors associated with statistical significance to the development of acute kidney injury. The mortality rate among those with acute kidney injury was 28.7%. Conclusion Older children, diagnosis of sepsis, demand for ventilatory support, and use of vasoactive amines were correlated with a higher risk of developing acute kidney injury. The mortality associated with acute kidney injury was elevated; it is crucial that all measures that ensure adequate renal perfusion are taken for patients with risk factors, to avoid the installation of the disease.
Sensor for measuring the volume of air supplied to the lungs of adult mannequins in ventilation maneuvers during cardiopulmonary resuscitation.
(2019) Leocádio, Rodolfo Rocha Vieira; Rêgo Segundo, Alan Kardek; Louzada, Cibelle Ferreira
This work proposes to adapt an existing sensor and embed it on mannequins used in cardiopulmonary resuscitation (CPR) training to accurately measure the amount of air supplied to the lungs during ventilation. The proposed sensor consists of measuring the airflow using propellers. The method directly measures the variable of interest and makes reference to spirometric techniques in the elaboration of its model, improving the realism of the dummies. Besides advantages over the sensors that are commonly used for this purpose, the projected sensor presented an agreement with its theoretical model and with the spirometric model. It is suitable for applications with a resolution of 17 mL, and precision of 50 mL and 26 mL for initial (< 900 mL) and final ranges, respectively.
A sensor for spirometric feedback in ventilation maneuvers during cardiopulmonary resuscitation training.
(2019) Leocádio, Rodolfo Rocha Vieira; Rêgo Segundo, Alan Kardek; Louzada, Cibelle Ferreira
This work proposes adapting an existing sensor and embedding it on mannequins used in cardiopulmonary resuscitation (CPR) training to accurately measure the amount of air supplied to the lungs during ventilation. Mathematical modeling, calibration, and validation of the sensor along with metrology, statistical inference, and spirometry techniques were used as a base for aquiring scientific knowledge of the system. The system directly measures the variable of interest (air volume) and refers to spirometric techniques in the elaboration of its model. This improves the realism of the dummies during the CPR training, because it estimates, in real-time, not only the volume of air entering in the lungs but also the Forced Vital Capacity (FVC), Forced Expiratory Volume (FEVt) and Medium Forced Expiratory Flow (FEF20–75%). The validation of the sensor achieved results that address the requirements for this application, that is, the error below 3.4% of full scale. During the spirometric tests, the system presented the measurement results of (305 ± 22, 450 ± 23, 603 ± 24, 751 ± 26, 922 ± 27, 1021 ± 30, 1182 ± 33, 1326 ± 36, 1476 ± 37, 1618 ± 45 and 1786 ± 56) × 10−6 m3 for reference values of (300, 450, 600, 750, 900, 1050, 1200, 1350, 1500, 1650 and 1800) × 10−6 m3 , respectively. Therefore, considering the spirometry and pressure boundary conditions of the manikin lungs, the system achieves the objective of simulating valid spirometric data for debriefings, that is, there is an agreement between the measurement results when compared to the signal generated by a commercial spirometer (Koko brand). The main advantages that this work presents in relation to the sensors commonly used for this purpose are: (i) the reduced cost, which makes it possible, for the first time, to use a respiratory volume sensor in medical simulators or training dummies; (ii) the direct measurement of air entering the lung using a noninvasive method, which makes it possible to use spirometry parameters to characterize simulated human respiration during the CPR training; and (iii) the measurement of spirometric parameters (FVC, FEVt, and FEF20–75%), in real-time, during the CPR training, to achieve optimal ventilation performance. Therefore, the system developed in this work addresses the minimum requirements for the practice of ventilation in the CPR maneuvers and has great potential in several future applications.
Subnotificação e invisibilidade da violência contra a mulher.
(2016) Alcantara, Mirian Conceição Moreira; Souza, Rosemeire Rodrigues de; Caetano, Leandro Genuir de Assis; Louzada, Cibelle Ferreira; Silveira, Ana Raquel Paolinelli; Lima, Jacqueline de Oliveira; Gouveia, Marilene Altavina; Moura, Heliana Conceição de; Bonolo, Palmira de Fátima; Melo, Elza Machado de
A violência contra mulheres configura situação pungente de ordem social no Brasil. A Portaria nº 104 de 25 de janeiro de 2011 tornou compulsória a notificação de violência, constituindo estratégia para reverter a subnotificação e ser instrumento de vigilância em saúde.