研究者詳細 - 小谷　恭弘

論文 - 小谷　恭弘

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Use of the index of pulmonary vascular disease for predicting long-term outcome of pulmonary arterial hypertension associated with congenital heart disease. 査読国際誌

Ayako Chida-Nagai, Naoki Masaki, Kay Maeda, Konosuke Sasaki, Hiroki Sato, Jun Muneuchi, Yoshie Ochiai, Hiroomi Murayama, Masahiro Tahara, Atsuko Shiono, Atsushi Shinozuka, Fumihiko Kono, Daisuke Machida, Shinichi Toyooka, Seiichiro Sugimoto, Kazufumi Nakamura, Satoshi Akagi, Maiko Kondo, Shingo Kasahara, Yasuhiro Kotani, Junichi Koizumi, Katsuhiko Oda, Masako Harada, Daisuke Nakajima, Akira Murata, Hazumu Nagata, Koichi Yatsunami, Tomio Kobayashi, Yoshikiyo Matsunaga, Takahiro Inoue, Hiroyuki Yamagishi, Naomi Nakagawa, Katsuki Ohtani, Masaki Yamamoto, Yushi Ito, Tatsunori Hokosaki, Yuta Kuwahara, Satoshi Masutani, Koji Nomura, Tsutomu Wada, Hirofumi Sawada, Masayuki Abiko, Tatsunori Takahashi, Yuichi Ishikawa, Seigo Okada, Atsushi Naitoh, Takako Toda, Tatsuya Ando, Akihiro Masuzawa, Shinsuke Hoshino, Masaaki Kawada, Yuichi Nomura, Kentaro Ueno, Naoki Ohashi, Tsuyoshi Tachibana, Yuchen Cao, Hideaki Ueda, Sadamitsu Yanagi, Masaaki Koide, Norie Mitsushita, Kouji Higashi, Yoshihiro Minosaki, Tomohiro Hayashi, Takashi Okamoto, Kenji Kuraishi, Eiji Ehara, Hidekazu Ishida, Hitoshi Horigome, Takashi Murakami, Kohta Takei, Taku Ishii, Gen Harada, Yasutaka Hirata, Jun Maeda, Shunsuke Tatebe, Chiharu Ota, Yasunobu Hayabuchi, Hisanori Sakazaki, Takashi Sasaki, Keiichi Hirono, Sayo Suzuki, Masahiro Yasuda, Atsuhito Takeda, Madoka Sawai, Kagami Miyaji, Atsushi Kitagawa, Yosuke Nakai, Nobuyuki Kakimoto, Kouta Agematsu, Atsushi Manabe, Yoshikatsu Saiki

Frontiers in cardiovascular medicine 10 1212882 - 1212882 2023年

記述言語：英語掲載種別：研究論文（学術雑誌）

AIMS: Limited data exist on risk factors for the long-term outcome of pulmonary arterial hypertension (PAH) associated with congenital heart disease (CHD-PAH). We focused on the index of pulmonary vascular disease (IPVD), an assessment system for pulmonary artery pathology specimens. The IPVD classifies pulmonary vascular lesions into four categories based on severity: (1) no intimal thickening, (2) cellular thickening of the intima, (3) fibrous thickening of the intima, and (4) destruction of the tunica media, with the overall grade expressed as an additive mean of these scores. This study aimed to investigate the relationship between IPVD and the long-term outcome of CHD-PAH. METHODS: This retrospective study examined lung pathology images of 764 patients with CHD-PAH aged <20 years whose lung specimens were submitted to the Japanese Research Institute of Pulmonary Vasculature for pulmonary pathological review between 2001 and 2020. Clinical information was collected retrospectively by each attending physician. The primary endpoint was cardiovascular death. RESULTS: The 5-year, 10-year, 15-year, and 20-year cardiovascular death-free survival rates for all patients were 92.0%, 90.4%, 87.3%, and 86.1%, respectively. The group with an IPVD of ≥2.0 had significantly poorer survival than the group with an IPVD <2.0 (P = .037). The Cox proportional hazards model adjusted for the presence of congenital anomaly syndromes associated with pulmonary hypertension, and age at lung biopsy showed similar results (hazard ratio 4.46; 95% confidence interval: 1.45-13.73; P = .009). CONCLUSIONS: The IPVD scoring system is useful for predicting the long-term outcome of CHD-PAH. For patients with an IPVD of ≥2.0, treatment strategies, including choosing palliative procedures such as pulmonary artery banding to restrict pulmonary blood flow and postponement of intracardiac repair, should be more carefully considered.

DOI： 10.3389/fcvm.2023.1212882

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Repeated Syncope During Exercise as a Result of Anomalous Origin of Left Coronary Artery With Intramural Aortic Course in a Teenage Boy. 査読国際誌

Naofumi Amioka, Kazufumi Nakamura, Naoaki Matsuo, Atsuyuki Watanabe, Yasuhiro Kotani, Shingo Kasahara, Hiroshi Ito

Texas Heart Institute journal 49 ( 6 ) 2022年11月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Texas Heart Institute Journal

Anomalous origin of the left coronary artery from the opposite sinus of Valsalva with an intramural aortic course (L-ACAOS-IM) can cause syncope, sometimes as a prodrome of lethal events, including sudden cardiac death, in young athletes. The detailed mechanism of syncope in patients with L-ACAOS-IM is still unclear. This case report describes a 17-year-old boy who presented to the hospital because of syncope following chest pain with increasing frequency during exercise, such as playing soccer and running. In a treadmill exercise test, a decrease in blood pressure was seen (from 99/56 mm Hg to 68/38 mm Hg); chest pain and faintness accompanied by ST-segment elevation in lead aVR and ST-segment depression at other leads on electrocardiography were noted. These findings and symptoms disappeared spontaneously within a few minutes while clinicians prepared for emergency medications. Coronary computed tomography angiography (CCTA) showed that the origin of the left coronary artery (LCA) was the opposite sinus of Valsalva, and the course of the LCA was through the aortic wall toward the left coronary sinus. He was diagnosed with L-ACAOS-IM. After surgical treatment by unroofing the intramural part of the LCA and reconstructing a neo-ostium, he no longer experienced syncope during exercise. This case suggests that low cardiac output caused by myocardial ischemia, not life-threatening arrythmia, is a main mechanism of syncope in patients with L-ACAOS-IM. Consideration should be given to performing CCTA before an exercise stress test for young patients with syncope and chest pain to avoid the risk of severe myocardial ischemia.

DOI： 10.14503/THIJ-21-7677

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Physiologic biventricular repair in a patient with unrepaired adult congenital heart disease with severe cyanosis. 査読国際誌

Hiroyuki Suzuki, Yosuke Kuroko, Yasuhiro Kotani, Shingo Kasahara

JTCVS techniques 15 220 - 223 2022年10月

Modified Konno procedure for structural valve deterioration of freestyle bioprosthesis

Naohiro Horio, Masanori Hirota, Takanori Suezawa, Takuya Kawabata, Yosuke Kuroko, Yasuhiro Kotani, Shingo Kasahara

Chirurgia (Turin) 35 ( 5 ) 299 - 301 2022年10月

掲載種別：研究論文（学術雑誌）

Although the freestyle aortic root bioprosthesis offers excellent clinical outcomes, the surgical mortality after reoperation is extremely high compared to that after aortic valve replacement and Bentall operation. We have described a surgical technique for structural valve deterioration of the freestyle bioprosthesis with a small aortic annulus. Modified Konno procedure with anterior aortic annular enlargement was indicated to repair the tentative pseudoaneurysm. Postoperative image of the aortic root showed a successful reconstruction without stenosis. This approach was found to be safe and efficient in this complicated reintervention case.

DOI： 10.23736/S0394-9508.21.05376-6

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Sinus plication technique for neoaorta dilation and regurgitation in patients with repaired congenital heart diseases. 査読国際誌

Eiri Kisamori, Yasuhiro Kotani, Hiroyuki Suzuki, Shingo Kasahara

European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 62 ( 4 ) 2022年9月

Vascular occlusion with 0.035-inch hydrogel expandable coils in congenital heart diseases and vascular anomalies. 査読国際誌

Kenji Baba, Maiko Kondo, Takahiro Eitoku, Yusuke Shigemitsu, Kenta Hirai, Shinichi Otsuki, Tomoyuki Kanazawa, Tatsuo Iwasaki, Toshihiro Iguchi, Norihisa Toh, Yasuhiro Kotani, Shingo Kasahara

Journal of cardiology 80 ( 3 ) 249 - 254 2022年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: We present our experience with transcatheter vascular occlusion using 0.035-inch hydrogel expandable coils, which has been reported only in a few cases in the pediatric cardiology fields. METHODS: This study is a retrospective analysis of all patients who underwent transcatheter embolization with 0.035-inch hydrogel coils at the Department of Pediatrics, Okayama University Hospital, between October 2018 and September 2020. RESULTS: Twenty patients with a median age of 5.1 years (0.05-26.0 years) and a median weight of 13.8 kg (3.0-56.8 kg) were included. A total of fifty-four 0.035-inch hydrogel coils, including 35 Azur 35 and nineteen Azur CX 35 coils (Terumo, Tokyo, Japan), were successfully deployed in 22 target vessels. The target vessels consisted of 10 aortopulmonary collaterals, 8 veno-venous collaterals, and 4 pulmonary arteriovenous malformations. We achieved technical success in all the target vessels. In total, the mean target vessel diameter was 4.4 mm, the mean number of 0.035-inch hydrogel coils was 2.5 per vessel. The mean device to vessel ratio was 1.6 for the anchor coil and 1.2 for the additional coil. Post-implantation angiograms revealed that the primary occlusion rate was 18/22 (82%). There were no periprocedural complications. CONCLUSIONS: The 0.035-inch hydrogel expandable coils are effective and safe in patients with congenital heart disease and vascular anomalies. These occlusion devices could be valuable options for interventional pediatric cardiologists.

DOI： 10.1016/j.jjcc.2022.04.005

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Journey Toward Improved Long-Term Outcomes After Norwood-Sano Procedure: Focus on the Aortic Arch Reconstruction. 査読国際誌

Shunji Sano, Toshikazu Sano, Yasuyuki Kobayashi, Yasuhiro Kotani, Peter C Kouretas, Shingo Kasahara

World journal for pediatric & congenital heart surgery 13 ( 5 ) 581 - 587 2022年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

The disadvantage of right ventricle-to-pulmonary artery (RV-PA) shunt is the need for more unplanned interventions to address stenosis in the shunt or branch pulmonary arteries, as compared to the modified Blalock-Taussig shunt group. Ring-enforced RV-PA PTFE conduit and dunk technique minimized these complications and right ventricle (RV) damage. Aortic arch obstruction increases afterload and leads to ventricular dysfunction and tricuspid regurgitation; therefore, most surgeons prefer to use homograft, autologous pericardium, or bovine pericardium to reconstruct the neoaorta. Artificial materials decrease the elastic properties, increase wall stiffness, and decrease the distensibility of the aorta; and as a result, RV function gradually deteriorates. This inelastic reconstructed aorta may be one of the reasons why long-term outcomes after the Fontan procedure are worse in hypoplastic left heart syndrome (HLHS) patients, in comparison to non-HLHS. Reconstruction of the neoaorta without any patch materials, or at least techniques that largely minimize the use of non-autologous materials, will offer a further refinement of our ability to optimize ventriculoarterial coupling and thereby long-term RV function.

DOI： 10.1177/21501351221116766

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Minimally invasive approaches to atrial septal defect closure. 査読国際誌

Igor E Konstantinov, Yasuhiro Kotani, Edward Buratto, Antonia Schulz, Yaroslav Ivanov

JTCVS techniques 14 184 - 190 2022年8月

A Ruptured Coronary Artery Aneurysm Secondary to Kawasaki Disease. 査読国際誌

Hiroyuki Suzuki, Yosuke Kuroko, Yasuhiro Kotani, Naoya Sakoda, Shingo Kasahara

JACC. Case reports 4 ( 13 ) 790 - 793 2022年7月

記述言語：英語

Coronary artery aneurysm occurs in 0.3%-0.8% of patients with Kawasaki disease, and cases of rupture are extremely rare. Only 2 cases have been reported in which the patients survived. We report a case of ruptured coronary artery aneurysm that was treated with coronary artery bypass grafting and extracorporeal membrane oxygenation. (Level of Difficulty: Advanced.).

DOI： 10.1016/j.jaccas.2022.05.012

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A highly calcified conduit compressing the heart. 査読国際誌

Hiroyuki Suzuki, Eiri Kisamori, Yasuhiro Kotani, Shingo Kasahara

Asian cardiovascular & thoracic annals 30 ( 6 ) 741 - 742 2022年7月

Impact of decompression of the right ventricle on the sinusoidal communications in pulmonary atresia and intact ventricular septum. 査読国際誌

Takahiro Eitoku, Shingo Kasahara, Kenji Baba, Yasuhiro Kotani

The Journal of thoracic and cardiovascular surgery 163 ( 6 ) 2210 - 2215 2022年6月

Strategy of delayed repair of total anomalous pulmonary venous connection in right atrial isomerism and functional single ventricle. 査読国際誌

Eiri Kisamori, Yasuhiro Kotani, Fiza Komel Raja, Junko Kobayashi, Yosuke Kuroko, Takuya Kawabata, Shingo Kasahara

JTCVS open 10 308 - 319 2022年6月

記述言語：英語掲載種別：研究論文（学術雑誌）

OBJECTIVE: Repair of total anomalous pulmonary venous connection (TAPVC) in neonates with right atrial isomerism and functional single ventricle is challenging. In our novel strategy, primary draining vein stenting (DVS) was applied to patients with preoperative pulmonary vein obstruction to delay TAPVC repair. This study investigated our initial experience with a strategy of delayed TAPVC repair, incorporating DVS. METHODS: Twenty-nine patients with right atrial isomerism and functional single ventricle who had a severe obstruction in the course of draining veins, who required surgical or catheter intervention in their neonatal period were retrospectively reviewed (primary DVS: n = 11; primary TAPVC repair: n = 18). RESULTS: Patients in the primary DVS group had more mixed type TAPVC (primary DVS: n = 5, 45.5%; primary TAPVC repair: n = 2, 11.1%; P = .03) and required more systemic to pulmonary shunt surgeries during their lifetime (primary DVS: n = 9, 81.8%; primary TAPVC repair: n = 6, 33.3%; P = .047). Kaplan-Meier analysis showed that primary DVS repair was associated with improved survival compared with primary TAPVC repair (survival rates at 90 days, 1 year, 3 years and 5 years: primary DVS: 100%, 80%, 68.6%, and 54.9%; primary TAPVC repair: 55.6%, 38.9%, 38.9%, and 38.9%, respectively [P = .04]). Of the 4 patients who underwent stenting of the ductus venosus, 3 had elevated liver enzymes after surgical repair of TAPVC due to ductus venosus steal, which markedly improved after coil embolization of the stent. CONCLUSIONS: For neonates with obstructive TAPVC and functional single ventricle, our delayed TAPVC repair using primary DVS appeared to improve survival compared with the conventional strategy.

DOI： 10.1016/j.xjon.2021.11.012

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Staged Repair of Tetralogy of Fallot: A Strategy for Optimizing Clinical and Functional Outcomes. 査読国際誌

Yasuyuki Kobayashi, Yasuhiro Kotani, Yosuke Kuroko, Takuya Kawabata, Shunji Sano, Shingo Kasahara

The Annals of thoracic surgery 113 ( 5 ) 1575 - 1581 2022年5月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: This study evaluated the impact of a staged surgical strategy incorporating a modified Blalock-Taussig shunt (BTS) for tetralogy of Fallot on pulmonary valve annulus growth, the rate of valve-sparing repair at the time of intracardiac repair, and long-term functional outcomes. METHODS: This retrospective study involved 330 patients with tetralogy of Fallot who underwent intracardiac repair between 1991 and 2019 and included 57 patients (17%) who underwent BTS. The mean follow-up period was 15.0 ± 7.3 years. We compared the data of patients who underwent BTS and patients who did not undergo BTS before intracardiac repair. RESULTS: The median age before BTS was 71 days (range, 28 to 199) and the median body weight was 4.3 kg (range, 3.3 to 6.8 kg). There were no inhospital or interstage deaths after BTS. The pulmonary valve annulus Z scores of patients with BTS revealed significant growth after BTS (from -4.2 ± 1.8 to -3.0 ± 1.7, P < .001). Valve-sparing repair was eventually performed in 207 patients (63%), including 26 (46%) who underwent staged repair. The overall freedom from pulmonary regurgitation-related reintervention was 99.7%, 99.1%, and 95.8% at 1, 5, and 20 years, respectively. CONCLUSIONS: A staged surgical strategy incorporating BTS as the first palliation for symptomatic patients resulted in no mortality. Blalock-Taussig shunt may have contributed to the avoidance of primary transannular patch repair and facilitated pulmonary valve annulus growth; therefore, approximately half of the symptomatic neonates and infants were recruited for valve-sparing repair. Staged repair may have led to functionally reliable delayed transannular patch repair, thereby resulting in fewer surgical reinterventions.

DOI： 10.1016/j.athoracsur.2021.01.087

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Impact of pulmonary artery coarctation on pulmonary artery growth and definitive repair following modified Blalock-Taussig shunt. 査読国際誌

Yasuhiro Kotani, Yasuyuki Kobayashi, Sachiko Kadowaki, Eiri Kisamori, Junko Kobayashi, Takuya Kawabata, Yosuke Kuroko, Shingo Kasahara

The Journal of thoracic and cardiovascular surgery 163 ( 5 ) 1618 - 1626 2022年5月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

OBJECTIVE: Pulmonary artery coarctation may pose a risk for pulmonary stenosis and subsequent failure to achieve definitive repair. We sought to assess the impact of pulmonary artery coarctation on pulmonary artery growth. METHODS: A retrospective chart review was performed in 130 patients, including 37 single ventricles with a modified Blalock-Taussig shunt as first palliation. Pulmonary artery coarctation was defined as discrete stenosis of the pulmonary artery, with a diameter of less than 3 mm and with the ductus arteriosus connected. Preoperative echocardiography showed pulmonary artery coarctation in 29 patients (22%). Concomitant pulmonary artery plasty was performed in 14 patients with discrete stenosis having a diameter of less than 2 mm. RESULTS: Pre-modified Blalock-Taussig shunt left pulmonary artery z-scores were lower in patients with pulmonary artery coarctation than in those without (-4.0 [-5.8, -2.1] vs -1.7 [-2.6, -0.8], P < .001), and this remained the same even after modified Blalock-Taussig shunt (-2.5 [-5.1, -0.5] vs -0.5 [-2.4, 0.8], P = .010). Concomitant pulmonary artery plasty did not result in catch-up growth of the left pulmonary artery (post-modified Blalock-Taussig shunt left pulmonary artery z-score in patients with pulmonary artery plasty: -3.0 (-6.5, -2.0) versus those without: -1.8 (-3.3, -0.3), P = .279). Definitive repair/Fontan completion was achieved in 111 patients (85%), and this was not affected by the presence of pulmonary artery coarctation. CONCLUSIONS: Pulmonary artery coarctation affected disproportionate pulmonary artery growth throughout the staged repair, but did not result in failure of definitive repair/Fontan completion. Pulmonary artery plasty during the neonatal period did not contribute to catch-up growth of the left pulmonary artery; therefore, surgical indications and timing should be carefully considered.

DOI： 10.1016/j.jtcvs.2021.09.070

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Stepwise Treatment for Heterotaxy Syndrome and Functional Single Ventricle Complicated by Infra-Cardiac Total Anomalous Pulmonary Venous Connection with Ductus Venosus Stent Placement and Subsequent Occlusion. 査読国際誌

Yuki Imai, Kenji Baba, Shinichi Otsuki, Maiko Kondo, Takahiro Eitoku, Yusuke Shigemitsu, Yosuke Fukushima, Kenta Hirai, Tatsuo Iwasaki, Tomoyuki Kanazawa, Yasuhiro Kotani, Shingo Kasahara

Pediatric cardiology 43 ( 4 ) 756 - 763 2022年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

Even today, when the surgical outcome of congenital heart disease in the neonatal period has improved, the prognosis for heterotaxy syndrome and functional single ventricle complicated with total anomalous pulmonary venous connection (TAPVC), especially the infra-cardiac type, is catastrophic. We describe a strategy that combines percutaneous ductus venosus (DV) stent placement and occlusion after TAPVC repair to ensure survival from initial surgery to bidirectional cavopulmonary shunt (BCPS) procedure and facilitate subsequent treatment. Three consecutive patients with heterotaxy syndrome and functional single ventricle complicated by infra-cardiac TAPVC treated with our own strategy were retrospectively studied. In two infants, DV stent placement was performed on the day of birth. In one case at 11 days of age. The risk of pulmonary vein obstruction was reduced, and on-pump surgery, including TAPVC repair, was performed on a standby basis. Since the rapid increase in hepatic enzymes occurred on postoperative day 0 to 1 in all cases, percutaneous stent occlusion was performed until postoperative day 3. The procedure improved liver function. One patient died due to severe atrioventricular valve regurgitation, one case underwent BCPS, and one patient was waiting to undergo. DV stent placement can avoid TAPVC repair in the early neonatal period. After TAPVC repair, the portosystemic shunt remained, resulting in hepatic dysfunction, but this could be improved by stent and vertical vein occlusion. A series of stepwise treatments can be useful to help such critically ill infants survive the high-risk neonatal period and achieve good BCPS circulation.

DOI： 10.1007/s00246-021-02782-z

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Commentary: "A new hope" in patients with Fontan circulation: High-risk Fontan operation can be done, but for "perfect Fontan" we still aim. 査読国際誌

Yasuhiro Kotani

JTCVS open 9 233 - 234 2022年3月

Papillary-Ventricular Complex Tugging for Ischemic/Functional Mitral Regurgitation. 査読国際誌

Masanori Hirota, Takanori Suezawa, Takuya Kawabata, Yosuke Kuroko, Yasuhiro Kotani, Fumi Yokohama, Yoichi Takaya, Hiroshi Ito, Shingo Kasahara

The Annals of thoracic surgery 113 ( 1 ) e71-e73 2022年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

Surgical restoration of subvalvular geometry is very important to prevent recurrence of ischemic/functional mitral regurgitation (MR). We evaluated an approach to the radical repair of left ventricular (LV) remodeling for three different cases with responsible coronary lesions. Leaflet tethering was corrected by tugging of the papillary-ventricular complex, which consists of the base of papillary muscles and posterior LV wall. The main lesion of the postinfarction scar was concomitantly excluded. Restoration of LV remodeling diminished MR with minimal leaflet tethering and improved systolic LV function. This technique may be an aggressive and encouraged approach for patients with ischemic/functional MR.

DOI： 10.1016/j.athoracsur.2021.03.095

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Right Vertical Infra-Axillary Thoracotomy Approach in Simple Congenital Heart Diseases 査読

Yasuyuki Kobayashi, Shingo Kasahara, Yasuhiro Kotani

Operative Techniques in Thoracic and Cardiovascular Surgery 27 ( 3 ) 294 - 301 2022年

Repair of Common Atrioventricular Valve in Univentricular Circulation Using Adjustable Annular Bridging Technique 査読

Shingo Kasahara, Yasuhiro Kotani

Operative Techniques in Thoracic and Cardiovascular Surgery 27 ( 3 ) 302 - 308 2022年

Risk factors and outcomes of pediatric extracorporeal membrane oxygenation. 査読国際誌

Hiroshi Taka, Yasuhiro Kotani, Yosuke Kuroko, Susumu Iwadou, Tatsuo Iwasaki, Shingo Kasahara

Asian cardiovascular & thoracic annals 29 ( 9 ) 916 - 921 2021年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: Congenital heart disease (CHD) is the most common neonatal and pediatric cardiac indication for extracorporeal membrane oxygenation (ECMO). Risk factors of survival and neurologic complication were different in many centers. We sought to evaluate survival and neurological outcome after ECMO in patients with CHD. METHODS: We retrospectively reviewed the medical records of 37 patients (<16 years old) who received ECMO. Indications for ECMO were failure to wean from cardiopulmonary bypass in 18 patients, extracorporeal cardiopulmonary resuscitation (ECPR) in 13 patients, and others in 6 patients. The median cardiopulmonary resuscitation (CPR) duration in ECPR patients was 48 min (interquartile range: 38-53 min). Neurological outcomes were evaluated using the Pediatric Cerebral Performance Category (PCPC) scale one year after hospital discharge. RESULTS: The median ECMO duration was 160 (91-286) h. Twenty-nine patients (78%) were successfully weaned off ECMO. Overall survival to hospital discharge was 59%. Risk factors of mortality were as follows: ECMO duration >1 week and urine output <1 mL/kg/h in the first 24 h after ECMO induction by multivariable analysis. Of the 22 survivors, 15 (68%) patients had a favorable outcome (PCPC ≤2). Risk factors for unfavorable outcomes (PCPC ≥3) included ECPR as indication and CPR of longer than 40 min. CONCLUSIONS: Longer ECMO duration and lower urine output were associated with increased mortality. Neurologic outcomes were not satisfactory when CPR was required for a longer period before ECMO establishment.

DOI： 10.1177/0218492321997379

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