Predicted preoperative maximal static respiratory pressures in adult cardiac surgeries: evaluation of two formulas
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| Format: | Artículo científico |
| Langue: | en |
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Sociedade Brasileira de Cirurgia Cardiovascular
2012
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| _version_ | 1876436646006620160 |
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| author | Ricardo Kenji Nawa |
| author_facet | Ricardo Kenji Nawa |
| contents | Predicted preoperative maximal static respiratory pressures in adult cardiac surgeries: evaluation of two formulas Ricardo Kenji Nawa Ada Clarice Gastaldi Elisângela Aparecida Soares da Silva Viviane dos Santos Augusto Alfredo José Rodrigues Paulo Roberto Barbosa Evora Medicina Thoracic surgery Perioperative care Respiratory muscles Respiratory insufficiency Objectives: Cardiac surgery (CC) determines systemic and pulmonary changes that require special care. What motivated several studies conducted in healthy subjects to assess muscle strength were the awareness of the importance of respiratory muscle dysfunction in the development of respiratory failure. These studies used maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) values. This study examined the concordance between the values predicted by the equations proposed by Black & Hyatt and Neder, and the measured values in cardiac surgery (CS) patients. Methods: Data were collected from preoperative evaluation forms. The Lin coefficient and Bland-Altman plots were used for statistical concordance analysis. The multiple linear regression and analysis of variance (ANOVA) were used to produce new formulas. Results: There were weak correlations of 0.22 and 0.19 in the MIP analysis and of 0.10 and 0.32 in the MEP analysis, for the formulas of Black & Hyatt and Neder, respectively. The ANOVA for both MIP and MEP were significant (P <0.0001), and the following formulas were developed: MIP = 88.82 - (0.51 x age) + (19.86 x gender), and MEP = 91.36 - (0.30 x age) + (29.92 x gender). Conclusions: The Black and Hyatt and Neder formulas predict highly discrepant values of MIP and MEP and should not be used to identify muscle weakness in CS patients. 2012 artículo científico 0102-7638 https://www.redalyc.org/articulo.oa?id=398941885012 en http://www.redalyc.org/revista.oa?id=3989 Revista Brasileira de Cirurgia Cardiovascular/Brazilian Journal of Cardiovascular Surgery application/pdf Sociedade Brasileira de Cirurgia Cardiovascular Revista Brasileira de Cirurgia Cardiovascular/Brazilian Journal of Cardiovascular Surgery (Brasil) Num.2 Vol.27 |
| format | Artículo científico |
| id | redalyc_398941885012 |
| institution | Redalyc |
| language | en |
| publishDate | 2012 |
| publisher | Sociedade Brasileira de Cirurgia Cardiovascular |
| spellingShingle | Predicted preoperative maximal static respiratory pressures in adult cardiac surgeries: evaluation of two formulas Ricardo Kenji Nawa Medicina Thoracic surgery Perioperative care Respiratory muscles Respiratory insufficiency Predicted preoperative maximal static respiratory pressures in adult cardiac surgeries: evaluation of two formulas Ricardo Kenji Nawa Ada Clarice Gastaldi Elisângela Aparecida Soares da Silva Viviane dos Santos Augusto Alfredo José Rodrigues Paulo Roberto Barbosa Evora Medicina Thoracic surgery Perioperative care Respiratory muscles Respiratory insufficiency Objectives: Cardiac surgery (CC) determines systemic and pulmonary changes that require special care. What motivated several studies conducted in healthy subjects to assess muscle strength were the awareness of the importance of respiratory muscle dysfunction in the development of respiratory failure. These studies used maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) values. This study examined the concordance between the values predicted by the equations proposed by Black & Hyatt and Neder, and the measured values in cardiac surgery (CS) patients. Methods: Data were collected from preoperative evaluation forms. The Lin coefficient and Bland-Altman plots were used for statistical concordance analysis. The multiple linear regression and analysis of variance (ANOVA) were used to produce new formulas. Results: There were weak correlations of 0.22 and 0.19 in the MIP analysis and of 0.10 and 0.32 in the MEP analysis, for the formulas of Black & Hyatt and Neder, respectively. The ANOVA for both MIP and MEP were significant (P <0.0001), and the following formulas were developed: MIP = 88.82 - (0.51 x age) + (19.86 x gender), and MEP = 91.36 - (0.30 x age) + (29.92 x gender). Conclusions: The Black and Hyatt and Neder formulas predict highly discrepant values of MIP and MEP and should not be used to identify muscle weakness in CS patients. 2012 artículo científico 0102-7638 https://www.redalyc.org/articulo.oa?id=398941885012 en http://www.redalyc.org/revista.oa?id=3989 Revista Brasileira de Cirurgia Cardiovascular/Brazilian Journal of Cardiovascular Surgery application/pdf Sociedade Brasileira de Cirurgia Cardiovascular Revista Brasileira de Cirurgia Cardiovascular/Brazilian Journal of Cardiovascular Surgery (Brasil) Num.2 Vol.27 |
| title | Predicted preoperative maximal static respiratory pressures in adult cardiac surgeries: evaluation of two formulas |
| topic | Medicina Thoracic surgery Perioperative care Respiratory muscles Respiratory insufficiency |
| url | https://www.redalyc.org/articulo.oa?id=398941885012 |