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Iliopoulos I, Mastropietro CW, Flores S, Cheung E, Amula V, Radman M, Kwiatkowski D, Puente BN, Buckley JR, Allen KY, Loomba R, Karki KB, Chiwane S, Cashen K, Piggott K, Kapileshwarkar Y, Gowda KMN, Badheka A, Raman R, Zang H, Costello JM. Pulmonary Atresia with Intact Ventricular Septum: Midterm Outcomes from a Multicenter Cohort. Pediatr Cardiol 2024; 45:847-857. [PMID: 35751685 DOI: 10.1007/s00246-022-02954-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 06/08/2022] [Indexed: 11/28/2022]
Abstract
Contemporary multicenter data regarding midterm outcomes for neonates with pulmonary atresia with intact ventricular septum are lacking. We sought to describe outcomes in a contemporary multicenter cohort, determine factors associated with end-states, and evaluate the effect of right ventricular coronary dependency and coronary atresia on transplant-free survival. Neonates treated during 2009-2019 in 19 United States centers were reviewed. Competing risks analysis was performed to determine cumulative risk of each end-state, and multivariable regression analyses were performed to identify factors associated with each end-state and transplant-free survival. We reviewed 295 patients. Median tricuspid valve Z-score was - 3.06 (25%, 75%: - 4.00, - 1.52). Final end-state was biventricular repair for 45 patients (15.2%), one-and-a half ventricle for 16 (5.4%), Fontan for 75 (25.4%), cardiac transplantation for 29 (9.8%), and death for 54 (18.3%). Seventy-six patients (25.7%) remained in mixed circulation. Cumulative risk estimate of death was 10.9%, 16.1%, 16.9%, and 18.8% at 1, 6 months, 1 year, and 5 years, respectively. Tricuspid valve Z-score was inversely, and coronary atresia positively associated with death or transplantation [odds ratio (OR) = 0.46, (95% confidence interval (CI) = 0.29-0.75, p < 0.001) and OR = 3.75 (95% CI 1.46-9.61, p = 0.011), respectively]. Right ventricular coronary dependency and left coronary atresia had a significant effect on transplant-free survival (log-rank p < 0.001). In a contemporary multicenter cohort of patients with PAIVS, consisting predominantly of patients with moderate-to-severe right ventricular hypoplasia, we observed favorable survival outcomes. Right ventricular coronary dependency and left, but not right, coronary atresia significantly worsens transplant-free survival.
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Affiliation(s)
- Ilias Iliopoulos
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
- Cardiac Intensive Care, The Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, MLC 2003, Cincinnati, OH, 45229, USA.
| | - Christopher W Mastropietro
- Division of Critical Care, Department of Pediatrics, Indiana University School of Medicine, Riley Hospital for Children, Indianapolis, IN, USA
| | - Saul Flores
- Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Eva Cheung
- Department of Pediatrics, Columbia University College of Physicians and Surgeons, Morgan Stanley Children's Hospital of New York, New York, NY, USA
| | - Venugopal Amula
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Monique Radman
- Division of Critical Care, Department of Pediatrics, University of Washington, Seattle Children's Hospital, Seattle, WA, USA
| | - David Kwiatkowski
- Division of Cardiology, Department of Pediatrics, Stanford University School of Medicine, Lucille Packard Children's Hospital, Palo Alto, CA, USA
| | - Bao Nguyen Puente
- Division of Cardiac Critical Care, Children's National Health System, Washington, DC, USA
| | - Jason R Buckley
- Division of Cardiology, Department of Pediatrics, Shawn Jenkins Children's Hospital, Medical University of South Carolina, Charleston, SC, USA
| | - Kiona Y Allen
- Division of Cardiology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Rohit Loomba
- Department of Pediatrics, Chicago Medical School, Advocate Children's Hospital, Chicago, IL, USA
| | - Karan B Karki
- Division of Cardiology, Department of Pediatrics, University of Tennessee Health Science Center, Le Bonheur Children's Hospital, Memphis, TN, USA
| | - Saurabh Chiwane
- Division of Pediatric Critical Care, Department of Pediatrics, Saint Louis University, Cardinal Glennon Children's Hospital, Saint Louis, MO, USA
| | - Katherine Cashen
- Department of Pediatrics, Central Michigan University, Children's Hospital of Michigan, Detroit, MI, USA
| | - Kurt Piggott
- Division of Critical Care, LSU Health Sciences, Children's Hospital, New Orleans, LA, USA
| | | | | | - Aditya Badheka
- Department of Pediatrics, University of Iowa Stead Family Children's Hospital, Iowa City, IA, USA
| | - Rahul Raman
- Department of Pediatrics, Mercy Medical Center, Des Moines, IA, USA
| | - Huaiyu Zang
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - John M Costello
- Division of Cardiology, Department of Pediatrics, Shawn Jenkins Children's Hospital, Medical University of South Carolina, Charleston, SC, USA
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Subramanian S, Mery CM. Commentary: 1V, 1.5V, 2V- Does It Really Matter? Semin Thorac Cardiovasc Surg 2021; 34:1320-1321. [PMID: 34785352 DOI: 10.1053/j.semtcvs.2021.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 11/10/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Sujata Subramanian
- Texas Center for Pediatric and Congenital Heart Disease; UT Health Austin / Dell Children's Medical Center; Austin, TX; Department of Surgery and Perioperative Care; Dell Medical School at The University of Texas at Austin; Austin, TX
| | - Carlos M Mery
- Texas Center for Pediatric and Congenital Heart Disease; UT Health Austin / Dell Children's Medical Center; Austin, TX; Department of Surgery and Perioperative Care; Dell Medical School at The University of Texas at Austin; Austin, TX.
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Impact of decompression of the right ventricle on the sinusoidal communications in pulmonary atresia and intact ventricular septum. J Thorac Cardiovasc Surg 2021; 163:2210-2215. [PMID: 34620505 DOI: 10.1016/j.jtcvs.2021.08.083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 08/04/2021] [Accepted: 08/23/2021] [Indexed: 11/24/2022]
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He X, Gao B, Shi G, Chen H, Du X, Xu Z, Liu J, Zhu Z, Zheng J. Surgical strategy and outcomes for the delayed diagnosis of pulmonary atresia with intact ventricular septum. J Cardiol 2018; 72:50-55. [PMID: 29358023 DOI: 10.1016/j.jjcc.2017.12.009] [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: 08/22/2017] [Revised: 11/12/2017] [Accepted: 12/20/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND In the present study, we summarize the experiences and evaluate clinical outcomes for the delayed diagnosis of pulmonary atresia with intact ventricular septum (PAIVS) patients when undergoing an initial visit and diagnosis in our heart center. METHODS Fifty-eight cases of delayed diagnosis of PAIVS in patients aged more than 6 months between January 2006 and June 2016 were reviewed in our hospital. The median age at initial diagnosis was 12.2 months (range, 6.1-79.6 months). Forty-five cases eventually reached definitive repair. Survival, risk factors for death, and clinical status after definitive repair were assessed. RESULTS Among patients who completed definitive repair, the Fontan procedure was performed in a large proportion of older PAIVS children (42.2%, 19/45), while only a few patients received biventricular repair (22.2%, 10/45). The medium-term (10-year) survival rates of biventricular repair, 1.5-ventricular repair, and univentricular palliation were 100.0%, 93.3%, and 81.2%, respectively. At the latest follow-up, most patients had a good clinical status after definitive repairs, with a low re-operation rate. CONCLUSIONS A large proportion of the delayed diagnosis of PAIVS patients had to receive univentricular palliation because of limited potential for right ventricular growth. However, optimal definitive repairs could also have been achieved in these patients with a low mortality rate.
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Affiliation(s)
- Xiaomin He
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Botao Gao
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guocheng Shi
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huiwen Chen
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinwei Du
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhiwei Xu
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinfen Liu
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhongqun Zhu
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Jinghao Zheng
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Evaluating the risk factors of reintervention of neonates with PA/IVS and CPS/IVS after PBPV as initial intervention method. J Cardiol 2016; 68:190-5. [DOI: 10.1016/j.jjcc.2016.02.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 12/23/2015] [Accepted: 02/22/2016] [Indexed: 11/21/2022]
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Odemis E, Ozyilmaz I, Guzeltas A, Erek E, Haydin S, Bakır I. Transcatheter management of neonates with pulmonary atresia with intact ventricular septum: a single center experience from Turkey. Artif Organs 2013; 37:E56-61. [PMID: 23305587 DOI: 10.1111/aor.12034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Pulmonary atresia with intact ventricular septum (PAIVS) is characterized by a broad spectrum of heterogeneous morphologies. Perforation of the atretic valve, balloon dilatation, and stenting of the patent ductus arteriosus are the percutaneous techniques that are used with increasing frequency in our clinic as well. They have some advantages over surgery, including short hospital stay and short intensive care unit stay. The main goal of the primary interventional approach is to avoid surgery. However, a group of patients with PAIVS still need surgery due to poor right ventricular growth. Therefore, the final achievement of the initial percutaneous treatment strategies is still debatable. In this article, we present the early- and mid-term results of the percutaneous approach utilized at our clinic in order to investigate the final effects of interventional therapy according to initial morphology. Between May 2010 and May 2012, 15 neonates diagnosed with PAIVS underwent transcatheter intervention. Detailed echocardiographic examination focused on right ventricle size, and tricuspid valve morphology and coronary sinusoids were performed in all the patients before the intervention. Nine of the patients were boys and six were girls. The mean age was 11.40 ± 12.87 days and mean weight was 3.34 ± 0.46 kg. Only one procedure-related mortality occurred. The mean follow-up period was 10.05 ± 3.42 months (1-26 months). The mean duration of intensive care was 7.19 ± 5.14 days. The mean follow-up time was 10.05 ± 3.42 months. After this period, survival rate was 66% (10/15). Two of the patients achieved biventricular physiology after pulmonary valve perforation. Two patients still have univentricular physiology. Six patients have been followed as a one and half ventricle repair candidate. Five out of 15 patients had stent patency during 6 months of follow-up, while restenosis developed in one patient (1/5, 20%), who had undergone the Glenn operation at 5 months of age. Transcatheter management for PAIVS is a feasible, safe, and effective primary palliative treatment in newborns. Shunt surgery may be considered in cases where cyanosis occurs despite transcatheter intervention. Right ventricular size determines the type of intervention. The early outcomes can be comparable with surgical palliation. However, a group of PAIVS, particularly with severe right ventricular hypoplasia, needs surgery even after a successful primary percutaneous intervention.
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Affiliation(s)
- Ender Odemis
- Department of Pediatric Cardiology, Istanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Center and Research Hospital, Istanbul, Turkey.
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Fetal intervention in right outflow tract obstructive disease: selection of candidates and results. Cardiol Res Pract 2012; 2012:592403. [PMID: 22928144 PMCID: PMC3426214 DOI: 10.1155/2012/592403] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2012] [Accepted: 06/26/2012] [Indexed: 11/29/2022] Open
Abstract
Objectives. To describe the process of selection of candidates for fetal cardiac intervention (FCI) in fetuses diagnosed with pulmonary atresia-critical stenosis with intact ventricular septum (PA/CS-IVS) and report our own experience with FCI for such disease. Methods. We searched our database for cases of PA/CS-IVS prenatally diagnosed in 2003–2012. Data of 38 fetuses were retrieved and analyzed. FCI were offered to 6 patients (2 refused). In the remaining it was not offered due to the presence of either favourable prognostic echocardiographic markers (n = 20) or poor prognostic indicators (n = 12). Results. The outcome of fetuses with PA/CS-IVS was accurately predicted with multiparametric scoring systems. Pulmonary valvuloplasty was technically successful in all 4 fetuses. The growth of the fetal right heart and hemodynamic parameters showed a Gaussian-like behaviour with an improvement in the first weeks and slow worsening as pregnancy advanced, probably indicating a restenosis. Conclusions. The most likely type of circulation after birth may be predicted in the second trimester of pregnancy by means of combining cardiac dimensions and functional parameters. Fetal pulmonary valvuloplasty in midgestation is technically feasible and in well-selected cases may improve right heart growth, fetal hemodynamics, and postnatal outcome.
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Hoashi T, Kagisaki K, Kitano M, Kurosaki K, Shiraishi I, Yagihara T, Ichikawa H. Late clinical features of patients with pulmonary atresia or critical pulmonary stenosis with intact ventricular septum after biventricular repair. Ann Thorac Surg 2012; 94:833-41; discussion 841. [PMID: 22818962 DOI: 10.1016/j.athoracsur.2012.04.071] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2012] [Revised: 04/06/2012] [Accepted: 04/10/2012] [Indexed: 10/28/2022]
Abstract
BACKGROUND We aimed to reveal late clinical features of patients with pulmonary atresia with intact ventricular septum (PA/IVS) or critical pulmonary stenosis (cPS) after biventricular repair (BVR) based on preoperative right ventricular (RV) end-diastolic volume (RVEDV) findings. METHODS Since 1985, 23 of 73 patients with PA/IVS (n=22) or cPS (n=1) with a tripartite RV and without major sinusoidal communication underwent BVR with a hybrid approach. The mean age and weight at BVR were 1.4±2.1 years and 6.9±5.9 kg, respectively. Mean follow-up was 10.1±6.4 years (range, 1.1 to 24.6 years). RESULTS Overall survival, reintervention-free, and arrhythmia-free rates at 20 years were 90.6%, 75.4%, and 50.4%, respectively. In 19 patients with preoperative RVEDV of 60% to 120% of normal, echocardiography at 10 years after BVR showed well-maintained RV systolic function. However, RV volume was quantitatively dilated in 16 (88.9%) due to moderate or greater tricuspid regurgitation in 8 (44.4%), pulmonary regurgitation in 12 (66.7%), or both, which caused arrhythmia in 3 patients more than 10 years after BVR. Two patients with preoperative RVEDV of greater than 120% of normal required tricuspid valve replacement after BVR, after which refractory atrial tachyarrhythmia developed in both patients. Furthermore, 2 patients with preoperative RVEDV of less than 60% of normal showed a cardiac index value within 2.5 L/min/m2 at 1 year after BVR, which did not improve. CONCLUSIONS Patients with PA/IVS or cPS and adequately sized RV showed good late clinical features after BVR. However, long-term follow-up examinations are necessary for RV dilatation and late-onset arrhythmia.
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Affiliation(s)
- Takaya Hoashi
- Department of Pediatric Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
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Chubb H, Pesonen E, Sivasubramanian S, Tibby SM, Simpson JM, Rosenthal E, Qureshi SA. Long-Term Outcome Following Catheter Valvotomy for Pulmonary Atresia With Intact Ventricular Septum. J Am Coll Cardiol 2012; 59:1468-76. [DOI: 10.1016/j.jacc.2012.01.022] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Revised: 12/22/2011] [Accepted: 01/02/2012] [Indexed: 10/28/2022]
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Liava'a M, Brooks P, Konstantinov I, Brizard C, d'Udekem Y. Changing trends in the management of pulmonary atresia with intact ventricular septum: the Melbourne experience. Eur J Cardiothorac Surg 2011; 40:1406-11. [PMID: 21561788 DOI: 10.1016/j.ejcts.2011.02.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Revised: 02/11/2011] [Accepted: 02/16/2011] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Management of pulmonary atresia with intact ventricular septum (PAIVS) can be directed to either biventricular repair or univentricular palliation. The optimal management strategy has yet to be defined. METHODS All patients operated at the Royal Children's Hospital, Melbourne for PAIVS between 1990 and 2006 (n = 81) were reviewed. Patients were retrospectively stratified into a simple three-tiered classification based on right ventricle (RV) size. Multivariate logistic regression analysis was performed to identify risk factors of mortality. RESULTS The distribution of RV sizes was normal in 11 (14%), moderate hypoplasia in 45 (56%), and severe hypoplasia in 25 (31%) patients. RV-to-coronary-artery connections were present in 33 (41%) and RV coronary dependence in six patients (7%). Sixteen patients died (20%). The end-status of the remaining patients was biventricular repair in 31/81 (38%), 1½-ventricle repair in 10/81 (12%), Fontan circulation in 14/81 (17%), transplantation in 1/81 (1%), and still awaiting repair in 9/81 (11%). Ten-year survival was 80% (95% confidence interval (CI): 71-87%). Independent predictors of mortality were lower tricuspid valve (TV) annulus size Z-score and the presence of RV-to-coronary-artery connections. CONCLUSIONS A simple three-tiered classification based on RV size may allow initial stratification into biventricular or univentricular repair for patients with normal RV size and severe RV hypoplasia. In patients with moderate RV hypoplasia, the presence of RV-to-coronary-artery connections or a TV Z-score<-2 should caution one against attempting biventricular repair.
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Affiliation(s)
- Matthew Liava'a
- Department of Cardiac Surgery, Royal Children's Hospital and the Murdoch Children's Research Institute, Melbourne, Australia
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Hybrid Therapy for Pulmonary Atresia With Intact Ventricular Septum. Ann Thorac Surg 2011; 91:1467-71. [DOI: 10.1016/j.athoracsur.2010.11.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Revised: 11/03/2010] [Accepted: 11/08/2010] [Indexed: 11/20/2022]
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Hoashi T, Bove EL, Devaney EJ, Hirsch JC, Ohye RG. Outcomes of 1½- or 2-ventricle conversion for patients initially treated with single-ventricle palliation. J Thorac Cardiovasc Surg 2011; 141:419-24. [DOI: 10.1016/j.jtcvs.2010.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2009] [Revised: 06/18/2010] [Accepted: 07/05/2010] [Indexed: 11/28/2022]
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Gómez-Montes E, Herraiz I, Mendoza A, Albert L, Hernández-García JM, Galindo A. Pulmonary atresia/critical stenosis with intact ventricular septum: prediction of outcome in the second trimester of pregnancy. Prenat Diagn 2011; 31:372-9. [DOI: 10.1002/pd.2698] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 12/06/2010] [Accepted: 12/07/2010] [Indexed: 11/05/2022]
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Huang SC, Ishino K, Kasahara S, Yoshizumi K, Kotani Y, Sano S. The potential of disproportionate growth of tricuspid valve after decompression of the right ventricle in patients with pulmonary atresia and intact ventricular septa. J Thorac Cardiovasc Surg 2009; 138:1160-6. [DOI: 10.1016/j.jtcvs.2009.05.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2008] [Revised: 02/26/2009] [Accepted: 05/15/2009] [Indexed: 11/25/2022]
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Bryant R, Nowicki ER, Mee RBB, Rajeswaran J, Duncan BW, Rosenthal GL, Mohan U, Mumtaz M, Blackstone EH. Success and limitations of right ventricular sinus myectomy for pulmonary atresia with intact ventricular septum. J Thorac Cardiovasc Surg 2008; 136:735-42, 742.e1-2. [PMID: 18805279 DOI: 10.1016/j.jtcvs.2008.03.039] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2007] [Revised: 02/27/2008] [Accepted: 03/30/2008] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Right ventricular sinus myectomy has been proposed for pulmonary atresia with intact ventricular septum for morphology falling within the uncertain area for eventual biventricular repair. Our objective was to evaluate right ventricular sinus myectomy by characterizing the morphologic spectrum of these patients, determining whether biventricular repair was achieved, ascertaining growth of right-sided structures, and assessing survival. METHODS We evaluated medical records, all imaging studies, and follow-up data (complete in all but 1 patient) from 43 patients with pulmonary atresia with intact ventricular septum treated from October 1993 to July 2005, 16 of whom underwent right ventricular sinus myectomy. Serial echocardiographic measurements of right-sided cardiac structures were converted to Z values to estimate their growth relative to somatic growth. RESULTS Patients undergoing right ventricular sinus myectomy had mild-to-moderate right ventricular size diminution (grade -1.2 +/- 3.2) and a tricuspid valve Z value of -4.9 +/- 1.9. Thirteen (87%) of the 16 patients achieved biventricular repair. After right ventricular sinus myectomy, mean right ventricular cavity size grade increased to 1.4 +/- 0.66, but the tricuspid valve Z value did not change appreciably over time. Five-year survival after sinus myectomy was 85%; late deaths were in patients with the smallest tricuspid valves at presentation (Z value < -7). CONCLUSIONS Right ventricular sinus myectomy in the uncertain area for biventricular repair of pulmonary atresia with intact ventricular septum leads to immediate increase in right ventricular volume. It, in combination with establishing right ventricle-pulmonary trunk continuity, allowed early biventricular repair in 87% of patients. However, tricuspid valve growth in relation to somatic growth was minimal. Thus, small tricuspid valve size might limit the long-term success of biventricular repair achieved by means of right ventricular sinus myectomy.
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Affiliation(s)
- Roosevelt Bryant
- Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, Cleveland, Ohio 44195, USA
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Congenital Heart Disease. Surgery 2008. [DOI: 10.1007/978-0-387-68113-9_77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
Pulmonary atresia with intact ventricular septum (PAIVS) is a disease with remarkable morphologic variability, affecting not only the pulmonary valve but also the tricuspid valve, the RV cavity and coronary arteries. With advances in interventional techniques and congenital heart surgery, the management of PAIVS continues to evolve. This review is an attempt at providing a practical approach to the management of this disease. The basis of our approach is morphologic classification as derived from echocardiography and angiography. Group A, patients with good sized RV and membranous atresia, the primary procedure at presentation is radiofrequency (RF) valvotomy. Often it is the only procedure required in this group with the most favourable outcome. Patients with severely hypoplastic RV (Group C) are managed along the lines of hearts with single ventricle physiology. The treatment at presentation is patent ductus arteriosus (PDA) stenting with balloon atrial septostomy or conventional modified Blalock Taussig (BT) shunt. Bidirectional Glenn shunt may be done 6-12 months later followed by Fontan completion after a suitable interval. Patients in Group B, the intermediate group, are those with borderline RV size, usually with attenuated trabecular component but well developed infundibulum. The treatment at presentation is RF valvotomy and PDA stenting +/- balloon atrial septostomy. Surgical re-interventions are not uncommonly required viz. bidirectional Glenn shunt when the RV fails to grow adequately (11/2 - ventricle repair) and right ventricular outflow tract (RVOT) reconstruction for subvalvar obstruction or small pulmonary annulus. Catheter based interventions viz. repeat balloon dilatation or device closure of patent foramen ovale (PFO) may also be required in some patients.
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Affiliation(s)
- Mazeni Alwi
- Institut Jantung Negara (National Heart Institute), Jalan Tun Razak, Kuala Lumpur, Malaysia.
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Odim J, Laks H, Plunkett MD, Tung TC. Successful Management of Patients With Pulmonary Atresia With Intact Ventricular Septum Using a Three Tier Grading System for Right Ventricular Hypoplasia. Ann Thorac Surg 2006; 81:678-84. [PMID: 16427873 DOI: 10.1016/j.athoracsur.2005.07.060] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2003] [Revised: 07/10/2005] [Accepted: 07/13/2005] [Indexed: 11/23/2022]
Abstract
BACKGROUND We sought to validate a simple grading scheme for right ventricular hypoplasia in determining suitability for a biventricular repair. METHODS We reviewed the medical records for 106 patients with pulmonary atresia-intact ventricular septum (PA-IVS) treated between 1982 and 2001. Over this period, children were assigned to mild (> 2/3 normal size, 23.7% of patients), moderate (1/3 to 2/3, 41.2%), or severe (1/3, 35.1%) right ventricular hypoplasia, and this grouping, along with severity of coronary anomalies (45% right ventricle to coronary fistulae, 16% with right ventricle dependent coronary circulation [RVDCC]), triaged children to eventual single ventricle (severe) or two-ventricle (mild or moderate) repair. RESULTS Actuarial 10-year survival was 86.3% with mortality predicted by severe hypoplasia (odds ratio [OR] 12.9, p < 0.001), RVDCC (OR 15.0, p < 0.001), and non-Caucasian race (OR 10.7, p < 0.001). Multivariate analysis with a Cox proportional hazards model confirmed only RVDCC (risk ratio [RR] 10.9, p = 0.0009} and non-Caucasian race (RR 6.9, p = 0.007) as significant. Although not an independent risk factor for survival, the degree of hypoplasia was the most important determinant for definitive repair. Severe hypoplasia virtually precluded two-ventricle repair (OR 33.1, p < 0.001 by chi2 analysis) and was the strongest risk factor for a one-ventricle system (OR 78.7, p < 0.001). Actuarial survival after either repair was 91%, and no biventricular repair later converted to a Fontan system. CONCLUSIONS Surgical management of patients based on this three tier grade for right ventricular hypoplasia results in excellent survival and correctly predicts patients destined for eventual Fontan and biventricular repair.
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Affiliation(s)
- Jonah Odim
- Division of Cardiothoracic Surgery, Department of Surgery, University of California-Los Angeles School of Medicine, California 90095, USA.
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Shinkawa T, Yamagishi M, Shuntoh K, Koushi K, Hisaoka T, Yaku H. One-stage definitive repair of pulmonary atresia with intact ventricular septum and hypoplastic right ventricle. J Thorac Cardiovasc Surg 2005; 130:1207-8. [PMID: 16214545 DOI: 10.1016/j.jtcvs.2005.06.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2005] [Revised: 06/01/2005] [Accepted: 06/07/2005] [Indexed: 11/25/2022]
Affiliation(s)
- Takeshi Shinkawa
- Department of Pediatric Cardiovascular Surgery, Children's Research Hospital, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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21
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Freedom RM, Anderson RH, Perrin D. The significance of ventriculo-coronary arterial connections in the setting of pulmonary atresia with an intact ventricular septum. Cardiol Young 2005; 15:447-68. [PMID: 16164782 DOI: 10.1017/s1047951105001319] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/03/2005] [Indexed: 11/07/2022]
Affiliation(s)
- Robert M Freedom
- Division of Cardiology, Department of Paediatrics, The University of Toronto Faculty of Medicine, Ontario, Canada
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Daubeney PEF, Wang D, Delany DJ, Keeton BR, Anderson RH, Slavik Z, Flather M, Webber SA. Pulmonary atresia with intact ventricular septum: Predictors of early and medium-term outcome in a population-based study. J Thorac Cardiovasc Surg 2005; 130:1071. [PMID: 16214522 DOI: 10.1016/j.jtcvs.2005.05.044] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2004] [Revised: 05/15/2005] [Accepted: 05/18/2005] [Indexed: 10/25/2022]
Abstract
OBJECTIVES Pulmonary atresia with intact ventricular septum is a form of congenital heart disease usually associated with right-heart hypoplasia, with considerable morphologic heterogeneity and often poor outlook. Ascertainment of risk factors for poor outcome is an important step if an improvement in outcome is to be achieved. METHODS The UK and Ireland Collaborative study of Pulmonary Atresia with Intact Ventricular Septum is an ongoing population-based study of all patients born with this disease from 1991 through 1995. All available clinical, morphologic, and investigative variables were directly reviewed, and risk factor analysis was performed for poor outcome. RESULTS One hundred eighty-three patients presented with pulmonary atresia with intact ventricular septum. Fifteen underwent no procedure, and all died. Of the remainder, 67 underwent a right ventricular outflow tract procedure (catheter or surgical), 18 underwent an outflow tract procedure with shunt, and 81 underwent a systemic-to-pulmonary shunt alone. One- and 5-year survival was 70.8% and 63.8%, respectively. Results from Cox proportional hazards model analysis showed that low birth weight (P = .024), unipartite right ventricular morphology (P = .001), and the presence of a dilated right ventricle (P < .001) were independent risk factors for death. The presence of coronary artery fistulae, right ventricular dependence, or the tricuspid valvar z score did not prove to be risk factors for death. After up to 9 years of follow-up, 29% have achieved a biventricular repair, 3% a so-called one-and-a-half ventricular repair, and 10.5% a univentricular repair, with 16.5% still having a mixed circulation (41% died). CONCLUSIONS This population-based study has shown which features at presentation place an infant in a high-risk group. This is important information for counseling in fetal life and for surgical strategy after birth.
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Cohen MS, Spray TL. Surgical management of unbalanced atrioventricular canal defect. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu 2005:135-44. [PMID: 15818370 DOI: 10.1053/j.pcsu.2005.02.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Approximately 10% of endocardial cushion defects exhibit unbalance at the atrioventricular inlet. When the atrioventricular valve sits more over one ventricle than the other, the contralateral ventricle is typically hypoplastic. Surgical intervention for unbalanced atrioventricular canal has a much higher morbidity and mortality than for the balanced form of the defect. With unbalanced atrioventricular canal to the right, no universal criteria are in place to choose single versus biventricular repair. In many cases, risk factors have been extrapolated from other lesions with left ventricular hypoplasia. Even if biventricular repair is successful, the reoperation rate is high for this lesion. Little data exist in the literature regarding left unbalanced atrioventricular canal. In general, right ventricular hypoplasia is better tolerated than left ventricular hypoplasia, and biventricular repair is usually possible. If cyanosis or high systemic venous pressure results, the one and one half ventricle repair (biventricular repair with bidirectional Glenn anastomosis) is an option. This article reviews the present understanding of unbalanced atrioventricular canal and discusses diagnostic and surgical strategies for this complex lesion.
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Affiliation(s)
- Meryl S Cohen
- The Cardiac Center, The Children's Hospital of Philadelphia, Division of Cardiology, Department of Pediatrics, University of Pennsylvania School of Medicine, 19104, USA
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Dyamenahalli U, McCrindle BW, McDonald C, Trivedi KR, Smallhorn JF, Benson LN, Coles J, Williams WG, Freedom RM. Pulmonary atresia with intact ventricular septum: management of, and outcomes for, a cohort of 210 consecutive patients. Cardiol Young 2004; 14:299-308. [PMID: 15680024 DOI: 10.1017/s1047951104003087] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES We sought to determine trends, and outcomes, for a cohort of patients with pulmonary atresia with intact ventricular septum born between 1965 and 1998. BACKGROUND Pulmonary atresia with intact ventricular septum is a complex lesion that remains a therapeutic challenge, particularly regarding the suitability for biventricular repair. METHODS We identified 210 consecutive patients, and reviewed their medical records, initial angiograms, and echocardiograms, along with the relevant surgical and pathology reports. RESULTS The mean initial Z-score for the diameter of the tricuspid valve was -0.99 +/- 1.95, with Ebstein's malformation in 8%. A right ventricular dependent coronary arterial circulation was found in 23%. The proportion of patients who received treatment increased over time, although placement of an arterial shunt was the predominant initial procedure throughout the experience. At the last follow-up, 107 patients had not reached the planned final stage of their repair, and 79% of these had died. Of the 103 reaching the final stage of planned repair, 58 had undergone attempted biventricular repair, with 34% dying; 14 had undergone attempted one and a half ventricular repair, with 7% dying, and 31 had undergone attempted functionally univentricular repair, with 10% dying. Overall, survival was 57% at the age of 1 year, 48% at 5 years, and 43% at 10 years. Survival improved over time, with survival of 75% at 1 year, and 67% at 5 years, for patients born between 1992 and 1998. An earlier date of birth, the presence of Ebstein's malformation, and prematurity were all significant independent factors associated with decreased survival. A greater severity of coronary arterial abnormalities was significantly associated with a greater likelihood of left ventricular dysfunction during follow-up. CONCLUSIONS The outcomes for patients born with pulmonary atresia with intact ventricular septum have improved over time, albeit that careful initial management, and better selection, is still indicated for those planned to undergo biventricular repair.
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Affiliation(s)
- Umesh Dyamenahalli
- Department of Pediatrics, Division of Cardiology, The Hospital for Sick Children, University of Toronto, Toronto, Canada.
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Ansari A, Goltz D, McCarthy KP, Cook A, Ho SY. The conduction system in hearts with pulmonary atresia and intact ventricular septum. Ann Thorac Surg 2003; 75:1502-5. [PMID: 12735569 DOI: 10.1016/s0003-4975(02)04896-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BACKGROUND Although a regular course of the conduction system is anticipated in hearts with pulmonary atresia and intact ventricular septum (PAIVS), it has never been demonstrated anatomically. In view of one of the surgical options in repair being debulking of the right ventricular wall, it is important to establish the location of the major conduction pathways. METHODS Four hearts belonging to fetuses aged 18, 20, 22, and 29 weeks were examined. Entire hearts were serially sectioned and step sections were stained. The sinus node and atrioventricular conduction bundles were identified and their locations described. RESULTS The conduction system in hearts with PAIVS is similar to that in normal hearts, although there was a minor variation in one of them. This was a heart affected by Ebstein malformation of the tricuspid valve. In this case, the right bundle branch terminated abruptly soon after its origin. CONCLUSIONS Confirmation of the regular course of the cardiac conduction system is important to the development of strategies for surgical repair of PAIVS.
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Affiliation(s)
- Aneel Ansari
- Department of Paediatrics, Imperial College, Faculty of Medicine, London, United Kingdom
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Sano S, Ishino K, Kawada M, Fujisawa E, Kamada M, Ohtsuki S. Staged biventricular repair of pulmonary atresia or stenosis with intact ventricular septum. Ann Thorac Surg 2000; 70:1501-6. [PMID: 11093477 DOI: 10.1016/s0003-4975(00)01974-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Since 1991 we have performed a multistage palliative approach to biventricular repair of pulmonary atresia or critical pulmonary stenosis with intact ventricular septum in infants with a detectable right ventricular infundibulum. METHODS A total of 25 patients (19 pulmonary atresia and 6 critical pulmonary stenosis) underwent initial palliation consisting of a transarterial pulmonary valvotomy and a polytetrafluoroethylene shunt between the left subclavian artery and pulmonary trunk. Among the 23 survivors, 15 underwent balloon valvotomy. Six of these patients later required additional palliative surgery that consisted of repeat pulmonary valvotomy, adjustment of an atrial communication, and resection of the hypertrophied muscles in the right ventricle. RESULTS Of the 25 patients, 23 (92%) survived. In all, 20 patients underwent definitive operations: 18 (90%) biventricular repair (12 pulmonary atresia, and 6 critical pulmonary stenosis), one bidirectional Glenn, and one Fontan procedure. The actuarial probability of achieving a biventricular repair at 36 months of age was 69%. In 18 patients right ventricular end-diastolic volume significantly increased but tricuspid valve diameter did not change. CONCLUSIONS The multistage palliation procedure to promote right ventricular growth makes a definitive biventricular repair of pulmonary atresia or critical pulmonary stenosis with intact ventricular septum possible in the majority of infants with a patent infundibulum.
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Affiliation(s)
- S Sano
- Department of Cardiovascular Surgery, Okayama University Medical School, Okayama-City, Japan.
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Shimpo H, Hayakawa H, Miyake Y, Takabayashi S, Yada I. Strategy for pulmonary atresia and intact ventricular septum. Ann Thorac Surg 2000; 70:287-9. [PMID: 10921728 DOI: 10.1016/s0003-4975(00)01303-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Pulmonary atresia with an intact ventricular septum is characterized by varying degrees of right ventricular cavity hypoplasia. This factor is critical in determining the most appropriate surgical approach for each patient. We describe a patient who underwent definitive biventricular surgical repair in early infancy. We used an atrial septal defect patch with a one-way valve and performed a right ventricular overhaul after a balloon valvotomy.
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Affiliation(s)
- H Shimpo
- Department of Thoracic and Cardiovascular Surgery, Mie University School of Medicine, Japan.
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29
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Lacour-Gayet F. Congenital Heart Surgery Nomenclature and Database Project: right ventricular outflow tract obstruction-intact ventricular septum. Ann Thorac Surg 2000; 69:S83-96. [PMID: 10798420 DOI: 10.1016/s0003-4975(99)01240-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The extant nomenclature for pulmonary atresia/stenosis with intact ventricular septum, pulmonary artery and/or pulmonary branch stenosis, double chambered right ventricle, absent pulmonary valve with intact ventricular septum, and ventricular to pulmonary artery conduit failure is reviewed for the purpose of establishing a unified reporting system. The subject was debated and reviewed by members of the STS-Congenital Heart Surgery Database Committee and representatives from the European Association for Cardiothoracic Surgery. All efforts were made to include all relevant nomenclature categories using synonyms where appropriate. Multiple risk factors were considered such as coronary artery fistulas/sinusoids, tricuspid annular size and location of peripheral pulmonary artery stenoses. A comprehensive database set is presented which is based on a hierarchical scheme. Data are entered at various levels of complexity and detail which can be determined by the clinician. These data can lay the foundation for comprehensive risk stratification analyses. A minimum database set is also presented which will allow for data sharing and would lend itself to basic interpretation of trends. Potential diagnostic related risk factors for each lesion are presented.
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Alwi M, Geetha K, Bilkis AA, Lim MK, Hasri S, Haifa AL, Sallehudin A, Zambahari R. Pulmonary atresia with intact ventricular septum percutaneous radiofrequency-assisted valvotomy and balloon dilation versus surgical valvotomy and Blalock Taussig shunt. J Am Coll Cardiol 2000; 35:468-76. [PMID: 10676696 DOI: 10.1016/s0735-1097(99)00549-5] [Citation(s) in RCA: 94] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE We compared the result of radiofrequency (RF)-assisted valvotomy and balloon dilation with closed surgical valvotomy and Blalock Taussig (BT) shunt as primary treatment in selected patients with pulmonary atresia and intact ventricular septum (PA-IVS). BACKGROUND Patients with PA-IVS who have mild to moderate hypoplasia of the right ventricle (RV) and patent infundibulum have the greatest potential for complete biventricular circulation. The use of RF or laser wires to perforate the atretic valve followed by balloon dilation provides an alternative to surgery. METHODS Between May 1990 and March 1998, 33 selected patients underwent either percutaneous RF valvotomy and balloon dilation (group 1, n = 21; two crossed over to group 2) or surgical valvotomy with concomitant BT shunt (group 2, n = 14). Second RV decompression by balloon dilation or right ventricular outflow tract (RVOT) reconstruction were performed if necessary. Patients who remained cyanosed were subjected to transcatheter trial closure of the interatrial communication. Partial biventricular repair was offered to those with inadequate growth of the RV. RESULTS The primary procedure was successful in 19 patients in group 1. There was one in-hospital death and two late deaths. Of the remaining 16 survivors, 12 achieved complete biventricular circulation, 7 of whom required no further interventions. Two patients required repeat balloon dilation, 1 RVOT reconstruction and 2 transcatheter closure of interatrial communication. Two patients underwent partial biventricular repair. In group 2, there were 3 in-hospital deaths after the primary procedure and 1 patient died four months later. All survivors (n = 10) required a second RV decompression, 8 by balloon dilation and 2 by RVOT reconstruction, after which, two patients died. Of the final 8 survivors, 7 achieved complete biventricular circulation, 5 after coil occlusion of the BT shunt and 2 after closure of interatrial communication. CONCLUSIONS Radiofrequency valvotomy and balloon dilation is more efficacious and safe compared with closed pulmonary valvotomy and BT shunt in selected patients with PA-IVS.
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Affiliation(s)
- M Alwi
- Department of Cardiology, Institut Jantung Negara (National Heart Institute), Kuala Lumpur, Malaysia.
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Wang JK, Wu MH, Chang CI, Chen YS, Lue HC. Outcomes of transcatheter valvotomy in patients with pulmonary atresia and intact ventricular septum. Am J Cardiol 1999; 84:1055-60. [PMID: 10569663 DOI: 10.1016/s0002-9149(99)00498-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The results of transcatheter valvotomy in pulmonary atresia with intact ventricular septum (PA-IVS) patients are presented with an attempt to identify the predictive factors for pulmonary valvotomy alone as definitive treatment. Between June 1995 and December 1997, 14 PA-IVS neonates with tripartite right ventricle underwent an attempted pulmonary valvotomy. For perforation of the pulmonary valve, a guidewire was used in 4, and a radiofrequency guidewire in 10 patients. Two outcome groups were identified. Group I included those in whom transcatheter treatment achieved a definitive success; group II patients required surgery despite an initial successful valvotomy. The attempt failed in 3 patients, 1 of whom had pericardial effusion. Perforation of the pulmonary valve was achieved in 11 patients: 2 with a guidewire and 9 with a radiofrequency guidewire. A subsequent balloon valvuloplasty was performed in these 11 patients. After valvuloplasty, mean right ventricular pressure decreased from 124 +/- 24 to 60 +/- 15 mm Hg (p <0.01). One died of heart failure and infection 10 days later, despite successful weaning from prostaglandin E1. Group I patients (n = 6) were treated with transcatheter valvotomy alone. Group II patients (n = 4) required right ventricular outflow patch. Significant differences between the 2 groups (group I vs II) were identified in tricuspid valve Z value (0.52 +/- 0.37 vs -1.25 +/- 0.48, p <0.05), pulmonary valve Z value (-3.47 +/- 0.59 vs -5.43 +/- 0.94, p <0.05), and ratio of right-to-left ventricular area on the apical 4-chamber view (0.73 +/- 0.06 vs 0.49 +/- 0.03, p <0.05). There were no significant differences in hemodynamic characteristics between the 2 groups. After a follow-up period ranging from 7 to 35 months (mean 18 +/- 10.3), the most recent echocardiograms in the 10 patients showed a mean pressure gradient across the pulmonary valve of 17 +/- 15 mm Hg. All 10 patients had an oxygen saturation of >92%. Transcatheter valvotomy using a radiofrequency guidewire is a safe and effective treatment in selected patients with PA-IVS. Transcatheter valvotomy can be a definitive treatment in PA-IVS patients with a tricuspid valve Z value > or = -0.1, pulmonary valve Z value > or = -4.1 and ratio of right-to-left ventricular area > or = 0.65.
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Affiliation(s)
- J K Wang
- Department of Pediatrics and Surgery, National Taiwan University Hospital, Taipei
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Ovaert C, Qureshi SA, Rosenthal E, Baker EJ, Tynan M. Growth of the right ventricle after successful transcatheter pulmonary valvotomy in neonates and infants with pulmonary atresia and intact ventricular septum. J Thorac Cardiovasc Surg 1998; 115:1055-62. [PMID: 9605075 DOI: 10.1016/s0022-5223(98)70405-2] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Since 1990, transcatheter pulmonary valvotomy has become an alternative to surgical valvotomy in the management of neonates and infants with pulmonary atresia and intact ventricular septum. We sought to determine whether right ventricular growth after transcatheter pulmonary valvotomy is commensurate with body growth. METHODS Laser or radiofrequency-assisted balloon valvotomy was attempted in 12 neonates and infants with pulmonary atresia and intact ventricular septum. Tricuspid and mitral valve dimensions were measured retrospectively on the cross-sectional echocardiograms performed before the procedure and during follow-up. Z-values were used to standardize tricuspid valve dimensions with body size. RESULTS The atretic pulmonary valve was successfully perforated and dilated in nine of 12 patients. Five of these nine patients required additional transcatheter or surgical procedures to augment the pulmonary blood flow. Of six survivors, five are regularly followed up with a median follow-up of 60 months (range 37 to 68 months). All five have two-ventricle circulation, two of the five patients requiring surgical enlargement of the right ventricular outflow tract with or without closure of the atrial septal defect. Echocardiographic tricuspid valve dimensions and Z-values before transcatheter valvotomy tended to be smaller in the patients who died than in the survivors. In the survivors, the absolute tricuspid valve dimensions increased after valvotomy but the Z-values tended to decrease or stayed constant. CONCLUSIONS Transcatheter valvotomy is a good alternative to surgical valvotomy in patients with pulmonary atresia and intact ventricular septum. Two-ventricle circulation can be achieved despite subnormal right ventricular growth.
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Affiliation(s)
- C Ovaert
- Department of Paediatric Cardiology, Guy's Hospital, London, United Kingdom
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Freedom RM. The Edgar Mannheimer Memorial lecture. From Maude to Claude: the musings of an insomniac in the era of evidence-based medicine. Cardiol Young 1998; 8:6-32. [PMID: 9680268 DOI: 10.1017/s1047951100004601] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- R M Freedom
- The University of Toronto Faculty of Medicine Head, The Hospital for Sick Children, Ontario, Canada
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Gibbs JL, Blackburn ME, Uzun O, Dickinson DF, Parsons JM, Chatrath RR. Laser valvotomy with balloon valvoplasty for pulmonary atresia with intact ventricular septum: five years' experience. Heart 1997; 77:225-8. [PMID: 9093038 PMCID: PMC484686 DOI: 10.1136/hrt.77.3.225] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE To assess immediate and medium term results of transcatheter laser valvotomy with balloon valvoplasty in selected infants with pulmonary atresia and intact ventricular septum. DESIGN Prospective study. SETTING Tertiary cardiac unit. PATIENTS All infants with pulmonary atresia and intact septum with no more than minor tricuspid valve hypoplasia referred between November 1990 and June 1995. Laser valvotomy was attempted in nine infants of median age 4-5 days and median weight 3.6 kg. INTERVENTION The pulmonary valve was perforated using a 0.018 inch fibreoptic guidewire attached to a NdYag laser and introduced through a catheter positioned beneath the valve. After perforation the valve was dilated with progressively larger balloons. MAIN OUTCOME MEASURES Successful laser valvotomy and balloon dilatation, complications, pulse oximetry, right ventricular outflow velocities, and need for surgical treatment. RESULTS Valvotomy was successful in all but one case, the failure being due to laser breakdown. After perforation the valve was dilated to 6-8 mm diameter. Prostaglandin E was withdrawn immediately in six of the eight duct dependent infants, and 28 and 49 days later in two. No patient required an aortopulmonary shunt. Two patients had repeat valvoplasty at 20 days and three months of age, respectively; one required infundibular resection and closure of the atrial septum at age four and one is awaiting similar treatment. CONCLUSIONS Laser valvotomy with balloon valvoplasty is safe and effective treatment for selected patients with pulmonary atresia and intact ventricular septum and should be considered as first line treatment in place of surgical valvotomy.
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Affiliation(s)
- J L Gibbs
- Killingbeck Hospital, Leeds, West Yorkshire
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