Diaphragm motion and lung function prediction in patients operated for lung cancer – a pilot study on 27 patientsReportar como inadecuado




Diaphragm motion and lung function prediction in patients operated for lung cancer – a pilot study on 27 patients - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Journal of Cardiothoracic Surgery

, 8:213

First Online: 18 November 2013Received: 08 July 2013Accepted: 28 October 2013

Abstract

BackgroundThe influence of the diaphragm motion to the accuracy of postoperative lung function prediction after the lung resction is still debatable.

MethodsProspective study that included 27 patients who underwent a lung resection for cancer. Diaphragm movements were assessed radiographically and by ultrasonography before the operation and postoperatively, with the lung fully expanded. The relationship between the diaphragm movements and differences between ppo FEV1 and measured postoperative FEV1, was analysed by expressing diaphragm movements as preoperative diaphragm amplitudes, preoperative-postoperative amplitude differences or in relation to fixed intrathoracic distances.

ResultsThe mean difference between preoperative and postoperative diaphragm amplitudes of the diseased side was 2.42 ± 1.25 cm and 2.11 ± 2.04 cm when measured radiographically and by ultra sound respectively p > 0.05. A significant positive correlation was found for the entire group only between the patients’ height and the differences ppo FEV1 - actual FEV1: the prediction was more unprecise in taller patients. With the cut-off value of 550 ml for differences between ppo FEV1 and actual FEV1, a significant inverse correlation was found only if the preoperative ipsilateral diaphragm amplitude was presented as a percentage of the preoperative apex-base distance in inspiration. For right-sided tumours, the greater the difference between preoperative and postoperative ipsilateral diaphragm amplitudes, the greater discrepancy between predicted and actual postoperative FEV1. For left-sided tumours, inverse correlation existed if the preoperative diaphragm amplitude was presented as a percentage of the preoperative distance apex-base.

ConclusionDiaphragm movements influence the accuracy of the postoperative lung function prediction.

KeywordsDiaphragm Ultra sound Radiography Lung function Lobectomy AbbreviationsFEV1Forced expiratory volume in the first second

ppoFEV1 predicted postoperative FEV1

COPDChronic obstructive pulmonary disease

GOLDGlobal strategy for the diagnosis management and prevention of obstructive lung diseases.

Electronic supplementary materialThe online version of this article doi:10.1186-1749-8090-8-213 contains supplementary material, which is available to authorized users.

Download fulltext PDF



Autor: Dragan R Subotic - Ruza Stevic - Milan Gajic - Radomir Vesovic

Fuente: https://link.springer.com/







Documentos relacionados