Effects of lung resection on heart structure and function: A tissue Doppler ultrasound survey of 43 cases

Abstract

Changes in heart structure and function after lung resection in patients with lung cancer are challenging to manage. Therefore, a non-invasive and reliable measurement tool to gauge such changes is critical. The purpose of the present study was to compare cardiological changes before and after lung resection using tissue Doppler imaging (TDI). A total of 43 patients (19 men and 24 women) with primary non-small cell lung cancer (n=37) and metastatic cancer in the lungs (n=6) were enrolled in the study.nTDI was used to determine the thickness of the ascending aorta, the open size of the ascending valve, the anterior-oposterior diameters of the left atrium and left ventricle, and the thickness of the ventricular septum and right ventricle before and after lung resection. Left ventricular (LV) ejection fraction (EF), pulmonary valve flow rate, tricuspid annular or mitral leaflet tip early (E) peak/late (A) diastolic blood flow velocities, tricuspid regurgitation flow, the lateral mitral annulus early (e') diastolic velocity and mitral E/e' ratio were used to determine LV filling pressure. Results revealed no significant differences between male and female patients in terms of the open size of the ascending valve, the anterior-posterior diameter of the left ventricle and the mitral E/e' ratio. Significant differences were found in the width of the ascending aorta, anterior-posterior diameter of the left atrium, width of the LV septum and right ventricular (RV) diameter before and after lung resection. Finally, there were significantchanges in EF and tricuspid pressure. The results indicated that TDI was useful as a non-invasive method for assessing left and right heart function following lung resection. The LV and RV dimensions were affected, but LV filling pressure was preserved after lobectomy.

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“…These differences did not reach statistical significance ( p = 0.115). A study by Chen et al [ 31 ] utilized tissue Doppler echocardiography (TDI) to assess cardiac changes before and after surgery in a group of 43 patients. The results showed that although certain structural parameters of the heart, such as the ascending aorta width and the anteroposterior diameter of the left atrium, significantly changed, cardiac functions remained stable, confirming that TDI is an effective tool for monitoring post-lung resection patients.…”

“…The results showed that although certain structural parameters of the heart, such as the ascending aorta width and the anteroposterior diameter of the left atrium, significantly changed, cardiac functions remained stable, confirming that TDI is an effective tool for monitoring post-lung resection patients. These findings are crucial for understanding how surgical interventions impact patients’ cardiac profiles and can help optimize postoperative management [ 31 ].…”