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Shigemitsu Y, Kondo M, Kurita Y, Fukushima Y, Kawamoto Y, Hirai K, Hara M, Kanazawa T, Iwasaki T, Kasahara S, Kataoka K, Tsukahara H, Baba K. Pulmonary Flow Management by Combination Therapy of Hemostatic Clipping and Balloon Angioplasty for Right Ventricular-Pulmonary Artery Shunt in Hypoplastic Left Heart Syndrome. Pediatr Cardiol 2024:10.1007/s00246-024-03579-6. [PMID: 39030348 DOI: 10.1007/s00246-024-03579-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 07/05/2024] [Indexed: 07/21/2024]
Abstract
Controlling pulmonary blood flow in patients who have undergone Norwood palliation, especially early postoperatively, is challenging due to a change in the balance of systemic and pulmonary vascular resistance. We applied a combination therapy of clipping and balloon angioplasty for right ventricle-pulmonary artery (RV-PA) shunt to control pulmonary blood flow, but the influence of the combination therapy on the PA condition is uncertain. Retrospectively analysis was conducted of all infants with hypoplastic left heart syndrome who had undergone Norwood palliation with RV-PA shunt at Okayama University Hospital from January 2008 to September 2022. A total of 50 consecutive patients underwent Norwood palliation with RV-PA shunt in this study period. Of them, 29 patients underwent RV-PA shunt flow clipping, and the remaining 21 had unclipped RV-PA shunt. Twenty-three patients underwent balloon angioplasty for RV-PA shunt with clips. After balloon angioplasty, oxygen saturation significantly increased from 69 (59-76)% to 80 (72-86)% (p < 0.001), and the narrowest portion of the clipped conduit significantly improved from 2.8 (1.8-3.4) to 3.8 (2.9-4.6) mm (p < 0.001). In cardiac catheterizations prior to Bidirectional cavo-pulmonary shunt (BCPS), there were no significant differences in pulmonary-to-systemic flow ratio (Qp/Qs), ventricular end-diastolic pressure, Nakata index, arterial saturation, mean pulmonary artery pressure and pulmonary vascular resistance index. On the other hand, in Cardiac catheterizations prior to Fontan, Nakata index was larger in the clipped group (p = 0.02). There was no statistically significant difference in the 5-year survival between the two groups (clipped group 96%, unclipped group 74%, log-rank test: p = 0.13). At least, our combination therapy of clipping and balloon angioplasty for RV-PA shunt did not negatively impact PA growth. Although there is a trend toward better but not statistically significant difference in outcomes in the clipped group compared to the non-clipped group, this treatment strategy may play an important role in improving outcomes in hypoplastic left heart syndrome.
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Affiliation(s)
- Yusuke Shigemitsu
- Department of Pediatrics, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama-Shi, Okayama, 700-8558, Japan
| | - Maiko Kondo
- Department of Pediatrics, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama-Shi, Okayama, 700-8558, Japan
| | - Yoshihiko Kurita
- Department of Pediatrics, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama-Shi, Okayama, 700-8558, Japan
| | - Yosuke Fukushima
- Department of Pediatrics, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama-Shi, Okayama, 700-8558, Japan
| | - Yuya Kawamoto
- Department of Pediatrics, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama-Shi, Okayama, 700-8558, Japan
| | - Kenta Hirai
- Department of Pediatrics, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama-Shi, Okayama, 700-8558, Japan
| | - Mayuko Hara
- Department of Pediatrics, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama-Shi, Okayama, 700-8558, Japan
| | - Tomoyuki Kanazawa
- Department of Pediatric Anesthesiology, Okayama University Hospital, Okayama, Japan
| | - Tatsuo Iwasaki
- Department of Pediatric Anesthesiology, Okayama University Hospital, Okayama, Japan
| | - Shingo Kasahara
- Department of Cardiovascular Surgery, Okayama University Hospital, Okayama, Japan
| | - Koichi Kataoka
- Department of Pediatric Cardiology, Hirohima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Hirokazu Tsukahara
- Department of Pediatrics, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama-Shi, Okayama, 700-8558, Japan
| | - Kenji Baba
- Department of Pediatrics, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama-Shi, Okayama, 700-8558, Japan.
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Doi Y, Kim SH, Ishigaki M, Sato K, Yoshimoto J, Mitsushita N, Nii M, Ikai A, Sakamoto K, Tanaka Y. Catheter Intervention for Flow Regulatory Clips on Palliative Shunts and Conduits in Patients with Congenital Heart Disease. Pediatr Cardiol 2023; 44:210-217. [PMID: 35857080 DOI: 10.1007/s00246-022-02967-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 07/01/2022] [Indexed: 02/06/2023]
Abstract
Catheter intervention (CI) for a Blalock-Taussig shunt (BTS) or a ventricle-to-pulmonary artery conduit (VPC) is often required after a palliative surgery for congenital heart disease. Flow regulatory clips help improve interstage mortality; their use necessitates CIs to prevent cyanosis. To study the CI outcomes in patients who underwent palliative surgery with either BTSs or VPCs with flow regulatory clips. This single-center retrospective study evaluated demographic characteristics and interventional outcomes of 49 consecutive pediatric patients who required CI for BTS (BTS group) or VPC (VPC group) between January 2008 and September 2018. Overall, 34 and 18 procedures were performed in the BTS and VPC groups, respectively. Moreover, 19/32 (59.3%) and 12/17 (70.1%) patients from the BTS and VPC groups had flow regulatory clips, respectively. All clips were unclipped successfully; one patient in each group underwent staged unclipping. A higher proportion of "clipped patients" underwent CI due to desaturation [clipped vs. non-clipped: BTS, 10/20 (50.0%) vs. 3/14 (21.4%), p = 0.092; VPC, 9/13 (69.2%) vs. 1/5 (20.0%), p = 0.060]. Most clipped patients successfully progressed to the next stage [BTS, 19/20 (95.0%); VPC, 12/13 (92.3%)]. Severe adverse events (SAEs) were more frequent in the VPC group than in the BTS group [3/13 (23.1%) vs. 0/20 (0%), p = 0.024]. Two patients developed an atrioventricular block (requiring an atropine infusion), while one died due to pulmonary overcirculation. While the indication of CI was cyanosis for a higher proportion of clipped patients, all clips were unclipped successfully. The incidence of CI-related SAEs was higher in the VPC group than in the BTS group.
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Affiliation(s)
- Yuji Doi
- Department of Cardiology, Shizuoka Children's Hospital, Shizuoka, Japan.
- Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, Japan.
| | - Sung-Hae Kim
- Department of Cardiology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Mizuhiko Ishigaki
- Department of Cardiology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Keisuke Sato
- Department of Cardiology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Jun Yoshimoto
- Department of Cardiology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Norie Mitsushita
- Department of Cardiology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Masaki Nii
- Department of Cardiology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Akio Ikai
- Department of Cardiovascular Surgery, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Kisaburo Sakamoto
- Department of Cardiovascular Surgery, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Yasuhiko Tanaka
- Department of Cardiology, Shizuoka Children's Hospital, Shizuoka, Japan
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