Abstract:
BACKGROUND:In coronary artery bypass graft (CABG) surgery, the need to perform a midsternotomy has been considered a factor for the decrease in postoperative pulmonary function. OBJECTIVE:To prospectively evaluate early postoperative (PO) pulmonary function in patients submitted to off-pump CABG, comparing the conventional midsternotomy with the ministernotomy approach. METHODS:A total of 18 patients were evaluated and assigned to the two groups: Group Conventional Midsternotomy (CMS, n=10) and Group Ministernotomy (MS, n=8). Spirometric results of the forced vital capacity (FVC) and the Forced Expiratory Volume in one second (FEV1) were obtained on the 1st, 3rd and 5th PO days and the arterial gasometry was obtained before and on the 1st PO day. The pulmonary shunt percentage and the pain score were also assessed. RESULTS:When compared in terms of percentage of the preoperative value, the FVC was higher in the MS group than in the CMS group on the 1st, 3rd and 5th PO days (p<0.001). Similar results were obtained for FEV1. The recovery of the FVC between the 1st and the 5th PO days was higher in the MS than in the CMS group (p=0,043). The PaO2 decreased on the 1st PO day in both groups (p<0.05), with a higher decrease in the CMS group (p=0.002). The shunt increased in the two groups on the 1st PO day (p<0.05); however, it was lower in the MS group (p=0.02). The reported pain score was lower and the duration of the hospital stay was shorter in the MS group. CONCLUSION:Patients submitted to CABG by MS present better preservation and recovery of pulmonary function than those submitted to CMS.
journal_name
Arq Bras Cardioljournal_title
Arquivos brasileiros de cardiologiaauthors
Guizilini S,Bolzan DW,Faresin SM,Alves FA,Gomes WJdoi
10.1590/s0066-782x2010005000137subject
Has Abstractpub_date
2010-10-01 00:00:00pages
587-93issue
5eissn
0066-782Xissn
1678-4170pii
S0066-782X2010005000137journal_volume
95pub_type
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