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08.10.2019 | Original Article

Diameter of the dilated main pulmonary artery in patients with pulmonary hypertension decreases after lung transplantation

Zeitschrift:
Surgery Today
Autoren:
Hidenao Kayawake, Akihiro Aoyama, Hideyuki Kinoshita, Tomoya Yoneda, Shiro Baba, Yuki Teramoto, Aya Miyagawa-Hayashino, Kazuhiro Yamazaki, Hideki Motoyama, Masatsugu Hamaji, Daisuke Nakajima, Toyofumi F. Chen-Yoshikawa, Hiroshi Date
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00595-019-01887-6) contains supplementary material, which is available to authorized users.
An overview of this manuscript was presented at the 15th annual meeting and scientific sessions of the Congress of the Asian Society of Transplantation in Cebu, Philippines, 2017.

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Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

Purpose

The pulmonary artery (PA) in patients with pulmonary hypertension (PH) becomes dilated. We analyzed the postoperative changes of the main PA after lung transplantation (LuTx).

Methods

The subjects of this retrospective study were 68 LuTx recipients, divided into a PH group (n = 36) and a non-PH group (n = 32), based on preoperative right heart catheterization findings. The PA diameter was measured on chest computed tomography. We evaluated the correlation between the mean pulmonary arterial pressure (mPAP) and the main PA diameter and compared the main PA diameters before and 3 months after LuTx.

Results

The main PA diameter was significantly correlated with the mPAP (r = 0.423, P < 0.001). Preoperatively, the mean main PA diameter in the PH group was significantly greater than that in the non-PH group. However, by 3 months after LuTx, the main PA diameter in the PH group had decreased significantly from 32.4 ± 6.7 to 26.9 ± 4.8 mm (P < 0.001), while that in the non-PH group had decreased minimally from 28.3 ± 4.9 to 26.4 ± 4.6 mm (P < 0.001), resulting in no significant difference in postoperative main PA diameters between the two groups.

Conclusions

The main PA diameter in recipients with PH was enlarged and correlated with the mPAP. The dilated main PA diameter in PH patients decreased shortly after LuTx.

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Zusatzmaterial
Supplementary file1 (TIF 955 kb)
595_2019_1887_MOESM1_ESM.tif
Supplementary file2 (TIF 936 kb)
595_2019_1887_MOESM2_ESM.tif
Supplementary file3 (TIF 948 kb)
595_2019_1887_MOESM3_ESM.tif
Literatur
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