Chest wall motion and pulmonary function are more diminished following cardiac surgery when the internal mammary artery retractor is used

2004 ◽  
Vol 38 (6) ◽  
pp. 369-374 ◽  
Author(s):  
Ásdís Kristjánsdóttir ◽  
María Ragnarsdóttir ◽  
Pétur Hannesson ◽  
Hans Jakob Beck ◽  
Bjarni Torfason
2014 ◽  
Vol 37 (9) ◽  
pp. 719-725 ◽  
Author(s):  
Satoko Naitoh ◽  
Katsuyuki Tomita ◽  
Keita Sakai ◽  
Akira Yamasaki ◽  
Yuji Kawasaki ◽  
...  

2020 ◽  
Vol 81 ◽  
pp. 238-239
Author(s):  
K. Nicholson ◽  
J. Salazar-Torres ◽  
P. Gabos ◽  
F. Miller ◽  
J. Henley ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hiroyuki Tamiya ◽  
Akihisa Mitani ◽  
Hideaki Isago ◽  
Taro Ishimori ◽  
Minako Saito ◽  
...  

AbstractSpirometry is a standard method for assessing lung function. However, its use is challenging in some patients, and it has limitations such as risk of infection and inability to assess regional chest wall motion. A three-dimensional motion capture system using the one-pitch phase analysis (MCO) method can facilitate high precision measurement of moving objects in real-time in a non-contacting manner. In this study, the MCO method was applied to examine thoraco-abdominal (TA) wall motion for assessing pulmonary function. We recruited 48 male participants, and all underwent spirometry and chest wall motion measurement with the MCO method. A significant positive correlation was observed between the vital capacity (Spearman’s ρ = 0.68, p < 0.0001), forced vital capacity (Spearman’s ρ = 0.62, p < 0.0001), and tidal volume (Spearman’s ρ = 0.61, p < 0.0001) of spirometry and the counterpart parameters of MCO method. Moreover, the MCO method could detect regional rib cage and abdomen compartment contributions and could assess TA asynchrony, indicating almost complete synchronous movement (phase angle for each compartment: − 5.05° to 3.86°). These findings suggest that this technique could examine chest wall motion, and may be effective in analyzing chest wall volume changes and pulmonary function.


Angiology ◽  
2008 ◽  
Vol 60 (2) ◽  
pp. 201-206 ◽  
Author(s):  
Mehmet B. Yilmaz ◽  
Yesim Guray ◽  
Hakan Altay ◽  
Burcu Demirkan ◽  
Vedat Caldir ◽  
...  

In this study, factors leading to the failure of internal mammary artery grafting was investigated among patients with coronary bypass. In all, 1323 patients were evaluated. It was found that lower grade diameter stenosis in the native vessel during postoperative angiogram and wall motion score index independently affected the fate of internal mammary artery as a graft. Grafting with internal mammary artery to native vessels with lower grade stenosis and to myocardium with poor wall score might not be a rational approach.


1987 ◽  
Vol 63 (3) ◽  
pp. 951-961 ◽  
Author(s):  
D. R. Hillman ◽  
K. E. Finucane

The interaction of forces that produce chest wall motion and lung volume change is complex and incompletely understood. To aid understanding we have developed a simple model that allows prediction of the effect on chest wall motion of changes in applied forces. The model is a lever system on which the forces generated actively by the respiratory muscles and passively by impedances of rib cage, lungs, abdomen, and diaphragm act at fixed sites. A change in forces results in translational and/or rotational motion of the lever; motion represents volume change. The distribution and magnitude of passive relative to active forces determine the locus and degree of rotation and therefore the effect of an applied force on motion of the chest wall, allowing the interaction of diaphragm, rib cage, and abdomen to be modeled. Analysis of moments allow equations to be derived that express the effect on chest wall motion of the active component in terms of the passive components. These equations may be used to test the model by comparing predicted with empirical behavior. The model is simple, appears valid for a variety of respiratory maneuvers, is useful in interpreting relative motion of rib cage and abdomen and may be useful in quantifying the effective forces acting on the rib cage.


Sign in / Sign up

Export Citation Format

Share Document