[Assessment of respiratory muscle strength, peak expiratory flow and pain after open cholecystectomy].
OBJECTIVE
to investigate the behavior of maximal inspiratory and expiratory pressure (MIP and MEP), peak expiratory flow (PEF) and pain after open cholecystectomy.


METHODS
were investigated 31 volunteers over 18 years submitted to open cholecystectomy between january and december 2007 at Holy House of Charity in the city of Diamantina-MG. The MIP MEP PEF and pain variables were measured at times pre-operative, 24 and 48 hours post-operative using manovacuometer, peak flow meter Assess and visual numeric scale of pain respectively. The statistical analysis was performed using Wilcoxon and Spearman tests considering significant differences for p<0,05.


RESULTS
There was significant reduction of the MIP MEP and PEF values at 24 and 48 hours post-operative compared to the pre-operative values. The levels of pain were significantly higher at all post-operative times compared to the pre-operative time. The MIP, MEP and PEF measures not showed correlation with the levels of post-operative pain. Nevertheless, the PEF after surgery showed significant correlation with the MEP values.


CONCLUSIONS
the open cholecystectomy causes significant impairment of the respiratory muscle strength and the peak expiratory flow at all post-operative times evaluated, with more pronounced reductions at 24 hours post-operative. The MIP MEP and PEF measures presented a different behavior compared to pain evaluation at all times investigated.
Miranda
Aline Silva de
AS
Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, MG, Brasil.
Novaes
Rômulo Dias
RD
Ferreira
Alex Erickson
AE
Neves
Miguel Pontes Correia
MP
Corrêa
Clynton Lourenço
CL
Mendonça
Vanessa Amaral
VA
D000293:Adolescent; D000328:Adult; D015992:Body Mass Index; D001945:Breathing Exercises; D002763:Cholecystectomy / Q000009:adverse effects*; D045853:Exhalation / Q000502:physiology*; D005260:Female; D006801:Humans; D008448:Maximal Expiratory Flow Rate / Q000502:physiology*; D008875:Middle Aged; D053580:Muscle Strength; D010149:Postoperative Pain / Q000503:physiopathology*; D011446:Prospective Studies; D012129:Respiratory Function Tests; D012132:Respiratory Muscles / Q000503:physiopathology*; D018709:Statistics, Nonparametric; D055815:Young Adult