Topographic-anatomical and morphometric characteristic of the remaining lung after pneumonectomy
Abstract
Background. Remaining lung is susceptible to changes after pneumonectomy. Information
about the morphometric and topographic and anatomical changes of the organ
after pneumonectomy is descriptive, their quantitative characteristics is
lacking.
Aim - to reveal the patterns of topographic and anatomical changes in the
remaining lung after left and right pneumonectomy at various postoperative
periods.
Material and methods. Computed tomograms of the chest of 50 patients (48 men and 2 women) aged 39
to 75 years before and after pneumonectomy (26 on the left lung, 24 on the
right lung) were examined. Computed tomography was performed on days
10-12, 6 and 12 months after surgery. The volume of the lung, the
transverse size of mediastinal hernias, their dynamics were
studied. 3D-modeling of the lung was performed.
Results. After left pneumonectomy, the volume of the right lung on the 10th day
decreased by 9.7%, and after 12 months it increased by 11.4% (up to 4094.3±213.3
cm3), the volume of the left lung decreased by 9.7%, after 12
months it increased by 12.3% (up to 3900.5±208.0 cm3). The
volume of the lungs increased due to the displacement of the mediastinum
and the formation of mediastinal hernias. After pneumonectomy, anterior
and posterior mediastinal hernias are formed.
Conclusion. The main regularity is a decrease in the volume in the early postoperative
period and its subsequent increase in the long-term period after the
intervention. The incidence and size of mediastinal hernias are associated
with the features and degree of post-pneumonectomic changes.
Keywords:pneumonectomy, remaining lung, computer tomography, postoperative changes
Funding. The study had no sponsor support.
Conflict of interests. The authors declare no conflict of interests.
For citation: Vasyukov M.N., Kagan I.I., Tretyakov A.A.
Topographic-anatomical and morphometric characteristic of the remaining lung
after pneumonectomy. Clinical and Experimental Surgery. Petrovsky Journal.
2021; 9 (1): 14-22. DOI: https://doi.org/10.33029/2308-1198-2021-9-1-14-22
(in Russian)
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