Diaphragm dysfunction is found in 10 to 90% of patients following heart surgery. In current practice diaphragm dysfunction is evaluated by 2D ultrasonography. Tissue Doppler is a validated technique to study heart contractility. Its use in the analysis of diaphragm function must be evaluated to determine its interest as a diagnostic tool. Better understanding of diaphragm dysfunction following heart surgery will lead to earlier management of post-operative respiratory complications and the implementation of preventive pre-operative measures. We intend to look for correlations between the TM (Time-Movement) mode and tissue Doppler in the assessment of diaphragm mobility.
Study Type
OBSERVATIONAL
Enrollment
170
Spontaneously breathing patients in the ½ seated position Heart transducer at the medio axillary position, parallel to the axis of the body, last intervertebral spaces US mode: 2D = Evaluation of the pulmonary parenchyma Time-Movement (TM) = Evaluation of diaphragm muscle shortening in the apposition zone + Evaluation of diaphragm mobility in the posterior 1/3 of the diaphragm dome Tissue Doppler Imaging (TDI) = Evaluation of diaphragm mobility in the diaphragm dome Collection of different daily clinical data
Determine the threshold value for diaphragm mobility
Chu Dijon Bourogne
Dijon, France
Measure diaphragm movement in TM (Time-Movement), in tissue Doppler
Time frame: At baseline
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