A preliminary study identifies early postoperative lung volume changes in patients with non‑small cell lung cancer following video‑assisted thoracic surgery using CT volumetry

Du, Xiao‐Jun; Li, Haojun; Liu, Langbo; Zhang, Min; Tang, Zhongben; Zhang, Jian; Lin, Peng; Xie, Hong; Chen, Cheng

doi:10.3892/mco.2021.2286

Cited by 1 publication

(1 citation statement)

References 32 publications

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“…Previous studies have utilized 3D-CT volumetry with a specialized lung analysis workstation ( 16 , 17 ) to investigate lung volume changes after surgery. Lung volumes typically sharply decrease in the first postoperative month, then rapidly recover over the next 3 months, and gradually increase from months 3 to 6 ( 17 ). Notably, residual lung volume after RLL showed the greatest increase among all surgeries ( 16 ).…”

Section: Discussionmentioning

confidence: 99%

Relationship between pulmonary blood flow and volume following lung resection using dynamic perfusion digital radiography

Hanaoka,

Hayashi,

Shiratori

et al. 2023

J Thorac Dis

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Background Surgical intervention for lung resection can cause ventilation-perfusion mismatches and affect gas exchange; however, minimally invasive assessment of blood flow is difficult. This study aimed to evaluate changes in pulmonary blood flow after radical lung cancer surgery using a minimally invasive dynamic digital chest radiography system. Methods We evaluated 64 patients who underwent radical lobectomies. Postoperative changes in pulmonary blood flow, assessed using dynamic chest radiography-based blood flow ratios (BFRs), were compared with the temporal evolution of both functional lung volumes (FLVs) and estimated lung weight (ELW) derived from computed tomography (CT) volumetry. Results FLVs on the affected side gradually recovered over time from the lowest value observed 3 months after surgery in all procedures. BFRs on the affected side also showed a gradual recovery from the lowest value 1 month after surgery, except for left upper lobectomies (LULs). In LULs, FLVs and ELWs increased proportionally up to 3 months after surgery, with lung volumes continuing to increase thereafter. The recovery of BFRs differed depending on the resected lobe. Conclusions A relationship between pulmonary blood flow and FLV was observed in the postoperative period. Despite varying compensatory responses depending on the surgical procedure, FLV recovery coincided with increased pulmonary blood flow.

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