Analgesia controlada pelo paciente comparada a analgesia padrão na função pulmonar, força muscular respiratória e dor no pós-operatório e revascularização do miocárdio: ensaio clínico randonizado

• Autor(a) principal: Freschi, Larissa [UNESP]
• Data de Publicação: 2015
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/138392; http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/09-05-2016/000864355.pdf
• topic: Miocardio - Doenças; Coração - Cirurgia; Espirometria; Dor pós-operatória; Testes funcionais dos pulmões; Postoperative pain

Introduction: Pain in the postoperative days (POD) can lead to several complications to the patient, mainly due to decrease in respiratory function. The best analgesia in POD remains a challenge. Objective: To investigate the occurrence of spirometric changes, respiratory muscles' strength changes and post-operative pain in patients undergoing coronary artery bypass grafting (CABG) receiving different POD analgesia. Also, to determine whether there is a superiority of one analgesic model over the other. Patients and methods: Patients undergoing CABG with extra-corporeal circulation at University Hospital of the Botucatu Medical College were included in the study. They were randomly divided into 2 different groups according to the type of postoperative analgesia: one with the Standard Analgesia (SA) and the other with Patient-Controlled Analgesia (PCA). Volunteers were evaluated through a questionnaire with personal data, past medical history, lifestyle, characteristics of the surgical procedure; as well as specific tests such as spirometry (FVC, FEV1 and MVV), vaccum-manometry (maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP)), and pain scale. The questionnaire was applied: pre-operatively and in post-operative days 1,2,3 and 7 (POD 1, POD 2, POD 3, POD 7). The spirometry was performed only preoperatively and in the POD 7. Results: 60 patients were evaluated (30 in the SA group and 30 in the PCA group). Both groups were demographically similar, except for hypertension that was present in 100% of SA patients and in 86.7% of PCA. Regarding the spirometric variables in percentage of predicted, the PCA group had significantly higher FVC (76.73% vs. 67.17%), FEV1 (76.3% vs. 64.9%) and MVV (89.17% vs. 72.23%) compared to POD 7 in SA group. MIP did not differ between the 2 groups and MEP was significantly higher in the PCA group only in POD 3 (61.17 ± 15.57 cmH2O X 46.83 ± 12.28 cm H2O). Pain when assessed at rest ...