Journal of Yeungnam Medical Science

Woo Sung Jang

2 Articles

Surgical results of only antegrade del Nido cardioplegia infusion in conventional coronary artery bypass grafting: a retrospective study: Sang-Uk Park, Yo Han Bae, Yun Seok Kim, Kyungsub Song, Woo Sung Jang; J Yeungnam Med Sci. 2023;40(Suppl):S23-S28. Published online June 28, 2023; DOI: https://doi.org/10.12701/jyms.2023.00283

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Background
Additional retrograde cardioplegia infusion in conventional coronary artery bypass grafting (CABG) was introduced to address the concern of inappropriate cardioplegia delivery through the stenotic coronary artery. However, this method is complex and requires repeated infusions. Therefore, we investigated the surgical outcomes of only antegrade cardioplegia infusion in conventional CABG.
Methods
We included 224 patients who underwent isolated CABG between 2017 and 2019. The patients were divided into two groups according to the cardioplegia infusion method: antegrade cardioplegia infusion with del Nido solution (n=111, group I) and antegrade+retrograde cardioplegia infusion with blood cardioplegia solution (n=113, group II).
Results
The sinus recovery time after release of the aorta cross-clamp was shorter in group I (3.8±7.1 minutes, n=98) than in group II (5.8±4.1 minutes, n=73) (p=0.033). The total cardioplegia infusion volume was lower in group I (1,998.6±668.6 mL) than in group II (7,321.0±2,865.3 mL) (p<0.001). Creatine kinase-MB levels were significantly lower in group I than in group II (p=0.039). Newly developed regional wall motion abnormalities on follow-up echocardiography were detected in two patients (1.8%) in group I and five patients (4.4%) in group II (p=0.233). There was no significant difference in ejection fraction improvement between the two groups (3.3%±9.3% in group I and 3.3%±8.7% in group II, p=0.990).
Conclusion
The only antegrade cardioplegia infusion strategy in conventional CABG is safe and has no harmful effects.

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Del Nido versus conventional blood cardioplegia in patients with combined aortic root surgery: A retrospective study
Yingshan Huang, Xiangni Zhu, Jichang Kong, Ling Zhang, Wenting Gui, Jiao Wang, Yunling Yang, Yan Xie, Dongmei Wang, Xinyue Li, Long Zhou, Yi Song, Xiaoqi Wang
Perfusion.2024;[Epub] CrossRef

Investigation of right ventricle function in patients with tetralogy of Fallot after total correction using cardiac magnetic resonance imaging: Woo Sung Jang, Hee Joung Choi, Jong Min Lee, Jae Bum Kim, Jae Hyun Kim, Jae Seok Jang; Yeungnam Univ J Med. 2017;34(2):238-241. Published online December 31, 2017; DOI: https://doi.org/10.12701/yujm.2017.34.2.238

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Abstract PDF: BACKGROUND
We investigated the difference in right ventricle (RV) volume and ejection fraction (EF) according to the pulmonary valve (PV) annular extension technique during Tetralogy of Fallot (TOF) total correction. METHODS: We divided patients who underwent the procedure from 1993 to 2003 into two groups according to PV extension technique (group I: PV annular extension, group II: no PV annular extension) during TOF total correction. We then analyzed the three segmental (RV inlet, trabecular and outlet) and whole RV volume and EF by cardiac magnetic resonance imaging (MRI). RESULTS: Fourteen patients were included in this study (group I: 10 patients, group II: four patients; male: nine patients, female: five patients). Cardiac MRI was conducted after a 16.1 years TOF total correction follow-up period. There was no statistical difference in RV segmental volume index or EF between groups (all p>0.05). Moreover, the total RV volume index and EF did not differ significantly between groups (all p>0.05). CONCLUSION: The RV volume and EF of the PV annular extension group did not differ from that of the PV annular extension group. Thus, PV annular preservation technique did not show the surgical advantage compared to PV annular extension technique in this study.

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