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Effects of Nuss Procedure On Respiratory Muscle Strength

Murat Oncel¹, Baykal Tülek², Guven Sadı Sunam¹, Huseyın Yıldıran¹

¹Department of Thoracıc Surgery, Medıcal Faculty of Selcuk Unıversıty, Konya, Turkey

²Department of Chest Dıseases, Medıcal Faculty of Selcuk Unıversıty, Konya, Turkey

 

Aim: In this study the effects of Nuss procedure on respiratory muscle strength were investigated by measuring maximum respiratory pressures.

Material and Methods: Eighteen patients, aged between 7 and 24 years, who had undergone Nuss procedure (MIRPE) between June 2014 and December 2015 were recruited to the study pre- and postoperative procedure. A hand-held respiratory pressure meter (Micro RPM; Micro Medical, Chatham, UK) was used to measure respiratory muscle strength. Maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) were measured. Maximal inspiratory pressure (MIP) was acquired from residual volume (RV) and the maximal expiratory pressure (MEP) was acquired from total lung capacity (TLC). Pre- and post-procedure maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) were measured. A correlation between the MIP and MEP changes and patient characteristics and Nuss procedure variables were investigated.

Results: The mean value of MIP was 48,6 (30-75) and the mean value of MEP was 61,5 (40-84) for preoperative period. On the other hand, for the postoperative period the mean value of MIP was 62,7 (44-90) and the mean value of MEP was 76,9 (42-107). The results of postoperative values of MIP and MEP were better than preoperative values.

Conclusion: In this study, our knowledge the effects of Nuss procedure on respiratory muscle strengths were investigated for the first time. This procedure significantly increased in both MIP and MEP values were observed.

Keywords: Nuss procedure, respiratory muscle strength, surgery