RT Journal Article
SR Electronic
T1 Late-breaking abstract: Novel thoraco-abdominal motion analysis technology can measure early respiratory changes following lung resection
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP P4260
VO 44
IS Suppl 58
A1 Ghazi Elshafie
A1 Willem de Boer
A1 Richard Steyn
A1 Ehab Bishay
A1 Maninder Kalkat
A1 Pala Rajesh
A1 Rachel Wilson
A1 Babu Naidu
YR 2014
UL http://erj.ersjournals.com/content/44/Suppl_58/P4260.abstract
AB OBJECTIVES: Pulmonary complications (atelectasis, pneumonia) are common following lung resection and are a major cause of morbidity. Identifying complications early and ‘at risk' patients may allow us to target more effective therapy. Thus we evaluated the viability of a novel portable device to measure dynamic thoraco-abdominal/lung function immediately after lung resection.METHODS: Structured Light Plethysmography (SLP) measures both rib cage and abdominal motion using a light grid which is simultaneously ‘seen' by a digital vision system. Grid movement during breathing is analysed and displayed in terms of regional thoraco-abdominal movement parameters as well as a 3D reconstruction. Measurements were made during quiet breathing, before and up to 4 days post operatively.RESULTS: 9 male patients with a mean age of 72 (range from 63 to 82) years, who underwent lung resection either via VATS (n:4) or Thoracotomy (n:5) were recruited. 96 % of all planned measurements could be performed, all without complications or discomfort to patients. SLP detected a significant reduction in the rib cage contribution to overall ventilation on the operated side in all patients one day after surgery compared to pre-operative measures (7% +/- 5.4 % p<0.001). This impairment was more marked following Thoracotomy (9% +/- 5% p<0.001) than VATS (4.5% +/- 4.6% p<0.001) and did not significantly improve prior to hospital discharge.CONCLUSION: SLP is a feasible, acceptable safe technique that can detect immediate regional changes in ventilation following lung resection and differentiate types of surgery. Further studies are required to determine usefulness of measures.