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Rudra HS, Mavroudis C, Backer CL, Kaushal S, Russell H, Stewart RD, Webb C, Sullivan C. The arterial switch operation: 25-year experience with 258 patients. Ann Thorac Surg 2011; 92:1742-6. [PMID: 21925641 DOI: 10.1016/j.athoracsur.2011.04.101] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Revised: 04/14/2011] [Accepted: 04/18/2011] [Indexed: 11/27/2022]
Abstract
BACKGROUND At our institution, the arterial switch operation for transposition of the great arteries has transitioned from the Gore-Tex patch (W.L. Gore & Associates, Flagstaff, AZ) for pulmonary artery reconstruction to redundant pantaloon pericardial patch (RPPP). The (U-shaped) coronary artery button was used for coronary reimplantation. This study investigates overall mortality and factors for neopulmonary artery, neoaortic, and coronary artery surgical reintervention. METHODS We performed a retrospective chart review of all patients who underwent arterial switch between 1983 and 2007. Our surgical database, operative reports, and cardiology clinic charts were reviewed. Time to event was plotted as Kaplan-Meier curves. Predictors of time-to-event were examined using Cox proportional hazard modeling. RESULTS A total of 258 patients underwent arterial switch during the study. Mortality declined from 15% (era I: 1983 to 1990) to 11% (era II: 1991 to 1998) to 7% (era III: 1999 to 2007). Era III had a significantly later time to death compared with era I (hazard ratio [HR] 0.62, p = 0.04). The RPPP had a lower neopulmonary artery reintervention rate compared with Gore-Tex; 9 of 225 (4%) versus 3 of 21 (14%), p = 0.008. Complex anatomy increased risk for neopulmonary reintervention (HR 3.3, p = 0.03). Surgical reintervention rate for coronary arteries was 2%. Complex coronary anatomy (HR 17.9, p = 0.01) predicted coronary reintervention. Predictors of neoaortic reintervention were prior pulmonary artery band (HR 4.3, p = 0.03), complex anatomy (HR 3.5, p = 0.01), and coronary artery anatomy (HR 3.5, p = 0.04). CONCLUSIONS Arterial switch operation mortality has decreased. Conversion to RPPP reduced neopulmonary artery reintervention. The (U-shaped) coronary artery button technique is associated with low coronary reintervention rates. Complex coronary anatomy increases coronary and aortic reintervention. Prior pulmonary artery banding and complex anatomy increase aortic reintervention.
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Affiliation(s)
- Harish S Rudra
- Division of Cardiology, Children's Memorial Hospital, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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Ewer AK, Middleton LJ, Furmston AT, Bhoyar A, Daniels JP, Thangaratinam S, Deeks JJ, Khan KS. Pulse oximetry screening for congenital heart defects in newborn infants (PulseOx): a test accuracy study. Lancet 2011; 378:785-94. [PMID: 21820732 DOI: 10.1016/s0140-6736(11)60753-8] [Citation(s) in RCA: 200] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Screening for congenital heart defects relies on antenatal ultrasonography and postnatal clinical examination; however, life-threatening defects often are not detected. We prospectively assessed the accuracy of pulse oximetry as a screening test for congenital heart defects. METHODS In six maternity units in the UK, asymptomatic newborn babies (gestation >34 weeks) were screened with pulse oximetry before discharge. Infants who did not achieve predetermined oxygen saturation thresholds underwent echocardiography. All other infants were followed up to 12 months of age by use of regional and national registries and clinical follow-up. The main outcome was the sensitivity and specificity of pulse oximetry for detection of critical congenital heart defects (causing death or requiring invasive intervention before 28 days) or major congenital heart disease (causing death or requiring invasive intervention within 12 months of age). FINDINGS 20,055 newborn babies were screened and 53 had major congenital heart disease (24 critical), a prevalence of 2·6 per 1000 livebirths. Analyses were done on all babies for whom a pulse oximetry reading was obtained. Sensitivity of pulse oximetry was 75·00% (95% CI 53·29-90·23) for critical cases and 49·06% (35·06-63·16) for all major congenital heart defects. In 35 cases, congenital heart defects were already suspected after antenatal ultrasonography, and exclusion of these reduced the sensitivity to 58·33% (27·67-84·83) for critical cases and 28·57% (14·64-46·30) for all cases of major congenital heart defects. False-positive results were noted for 169 (0·8%) babies (specificity 99·16%, 99·02-99·28), of which six cases were significant, but not major, congenital heart defects, and 40 were other illnesses that required urgent medical intervention. INTERPRETATION Pulse oximetry is a safe, feasible test that adds value to existing screening. It identifies cases of critical congenital heart defects that go undetected with antenatal ultrasonography. The early detection of other diseases is an additional advantage. FUNDING National Institute for Health Research Health Technology Assessment programme.
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Affiliation(s)
- Andrew K Ewer
- University of Birmingham, School of Clinical and Experimental Medicine, Birmingham, UK.
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Gatlin S, Kalynych A, Sallee D, Campbell R. Detection of a coronary artery anomaly after a sudden cardiac arrest in a 17 Year-old with D-transposition of the great arteries status post arterial switch operation: a case report. CONGENIT HEART DIS 2011; 6:384-8. [PMID: 21453426 DOI: 10.1111/j.1747-0803.2011.00491.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Long-term follow-up and testing for patients who have undergone congenital heart surgery is an evolving field. We report the case of a 17-year-old patient who had an arterial switch operation as an infant for d-transposition of the great vessels and suffered sudden cardiac arrest while participating in a cross-country event. Previous evaluations, including a cardiac catheterization and stress testing, did not indicate any identifiable abnormalities. After the arrest, a computed tomography angiogram of his chest showed an abnormal takeoff of the reimplanted left coronary artery.
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Affiliation(s)
- Scott Gatlin
- Department of Cardiology, Sibley Heart Center, Children's Healthcare of Atlanta, Emory University, Atlanta, GA, USA.
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Zhang Y, Cai A, Sun W, Guo Y, Zhao Y. Prenatal diagnosis of fetal congenitally corrected transposition of the great arteries. Prenat Diagn 2011; 31:529-35. [DOI: 10.1002/pd.2734] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2010] [Revised: 02/10/2011] [Accepted: 02/12/2011] [Indexed: 11/10/2022]
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Walter EMD, Huebler M, Alexi-Meshkishvili V, Sill B, Berger F, Hetzer R. Fate of the Aortic Valve Following the Arterial Switch Operation. J Card Surg 2010; 25:730-6. [DOI: 10.1111/j.1540-8191.2010.01144.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu YL, Hu SS, Shen XD, Li SJ, Wang X, Yan J, Wu X, Huang JB, Kong B. Midterm Results of Arterial Switch Operation in Older Patients With Severe Pulmonary Hypertension. Ann Thorac Surg 2010; 90:848-55. [DOI: 10.1016/j.athoracsur.2010.03.114] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Revised: 03/30/2010] [Accepted: 03/30/2010] [Indexed: 11/17/2022]
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Myocardial perfusion magnetic resonance imaging for detecting coronary function anomalies in asymptomatic paediatric patients with a previous arterial switch operation for the transposition of great arteries. Cardiol Young 2010; 20:410-7. [PMID: 20416135 DOI: 10.1017/s1047951109990503] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND The main cause of long-term morbidity and mortality after the arterial switch operation for transposition of great arteries is complication at the coronary arteries. Myocardial perfusion magnetic resonance imaging represents a relatively novel and appealing tool for detecting myocardial ischaemia but with little experience in paediatric patients. The purpose of this paper is to report a single centre experience with myocardial perfusion magnetic resonance imaging for detecting ischaemia after the arterial switch operation for transposition of great arteries. METHODS Twenty-eight patients aged 13-16 years with an arterial switch operation for transposition of great arteries were included in the study. Coronary pattern, operative and postoperative complications, and long-term follow-up events were reviewed. Patient functional evaluation included clinical examination, electrocardiogram and echocardiogram. Every patient underwent magnetic resonance imaging perfusion scanning at rest and under adenosine-induced stress. RESULTS All patients were symptom free with no ischaemic signs on the electrocardiogram. All magnetic resonance imaging examinations were generally well tolerated with minor adenosine secondary effects in 36% of the patients. Two stress myocardial perfusion magnetic resonance studies were excluded from analysis for technical reasons. No perfusion stress defects were detected at the remaining 26. Myocardial delayed enhancement was performed in all 28 patients. In five subjects, a subendocardial late enhancement consistent with patch tissue for septal defect closure at the time of repair was indentified. CONCLUSION Magnetic resonance imaging evaluation of myocardial perfusion and viability is feasible in paediatric patients long after arterial switch operation. No signs of myocardial ischaemia or necrosis were documented in this young asymptomatic population. Further studies including coronary angiography correlation are needed to validate magnetic resonance imaging results.
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Turner DR, Muzik O, Forbes TJ, Sullivan NM, Singh TP. Coronary diameter and vasodilator function in children following arterial switch operation for complete transposition of the great arteries. Am J Cardiol 2010; 106:421-5. [PMID: 20643257 DOI: 10.1016/j.amjcard.2010.03.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2010] [Revised: 03/15/2010] [Accepted: 03/15/2010] [Indexed: 11/28/2022]
Abstract
Coronary reimplantation during arterial switch operation (ASO) may affect coronary artery growth and function during childhood. The purpose of this study was to assess coronary artery diameter and regional myocardial blood flow (MBF) and myocardial flow reserve (MFR) in children after neonatal ASO. We measured proximal diameters of left anterior descending (LAD), left circumflex, and posterior descending coronary arteries on coronary angiogram in 12 children (median age 11 years, range 7.6 to 15.1) with a history of neonatal ASO. These children then underwent cardiac positron emission tomographic imaging using nitrogen-13 ammonia to assess MBF at baseline and during intravenous adenosine hyperemia in regions supplied by these 3 coronary arteries. Coronary artery z-scores were within normal range (-2.0 to 2.0) for 32 of 36 coronary arteries. MFR (ratio of hyperemic to basal MBF) was normal (>2.5) in all myocardial regions in 10 of 12 patients. The remaining 2 patients, 1 with a dual LAD and 1 with LAD origin from the right coronary artery, had generalized impairment of hyperemic MBF (<2.0 ml/g/min) and low MFR (<2.5). Coronary artery z-scores and MFR in corresponding myocardial territories were not correlated (r = 0.15, p = 0.36). In conclusion, coronary growth and function appear to be normal in most children after neonatal ASO. Children with anatomic LAD abnormalities may be at increased risk of impaired MFR.
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Affiliation(s)
- Daniel R Turner
- Department of Pediatrics, Wayne State University School of Medicine, Detroit, Michigan, USA
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Metton O, Calvaruso D, Gaudin R, Mussa S, Raisky O, Bonnet D, Sidi D, Vouhé PR. Intramural coronary arteries and outcome of neonatal arterial switch operation. Eur J Cardiothorac Surg 2010; 37:1246-53. [DOI: 10.1016/j.ejcts.2009.12.042] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 12/30/2009] [Accepted: 12/31/2009] [Indexed: 10/19/2022] Open
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Liu YL, Hu SS, Shen XD, Li SJ, Wang X, Yan J, Wu X, Huang JB, Kong B. Safety and efficacy of arterial switch operation in previously inoperable patients. J Card Surg 2010; 25:400-5. [PMID: 20529154 DOI: 10.1111/j.1540-8191.2010.01070.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Patients older than six months with complete transposition of the great arteries and ventricular septal defect or Taussig-Bing anomaly and severe pulmonary arterial hypertension (PAH), previously thought to be inoperable, usually are not indicated for arterial switch operation (ASO) or even repair. This study aimed to evaluate the safety and efficacy of ASO in these selected subset patients. METHODS The records of 86 patients older than six months with complete transposition of the great arteries and ventricular septal defect or Taussig-Bing anomaly and severe PAH who underwent ASO at our institution from May 2000 to October 2008 were reviewed retrospectively. Eighty survivors were followed-up. RESULTS There were six hospital deaths (7.0%, 95% confidence limit 1.6 to 12.4%). From January 2006 to October 2008, 46 consecutive ASOs were performed with no death. Operative mortality and mobility decreased significantly (p = 0.008 and p = 0.046, respectively). The median duration of follow-up was 42.1 +/- 28.8 months (range, 2.0 to 99.5). Two late deaths occurred. Latest follow-up data showed that 2.8% of survivors were in New York Heart Association (NYHA) class II and 97.2% were in NYHA class I. CONCLUSIONS Excellent early and mid-term results of ASO are obtained from patients older than six months with complete transposition of the great arteries and ventricular septal defect or Taussig-Bing anomaly and severe PAH in current era, and ASO is safe and effective in these selected subset patients.
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Affiliation(s)
- Ying-Long Liu
- Pediatric Cardiac Center, Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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A study of the physiological consequences of sympathetic denervation of the heart caused by the arterial switch procedure. Cardiol Young 2010; 20:150-8. [PMID: 20219152 DOI: 10.1017/s1047951109990643] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND The arterial switch operation is the corrective operation for transposition of the great arteries, defined as the combination of concordant atrioventricular and discordant ventriculo-arterial connections, but there have been concerns about silent subendocardial ischaemia on exercise and coronary artery growth. The arterial switch divides the majority of the sympathetic nerves entering the heart; we have studied the effects of coronary flow and sensitivity to catecholamine stimulation in an animal model. METHODS A total of 10 piglets were operated on cardiopulmonary bypass with section and resuturing of aortic trunk, pulmonary artery and both coronary arteries, with 13 sham-operated controls. After 5-7 weeks of recovery, seven simulated switch survivors and 13 controls were studied. RESULTS Basal heart rate was significantly higher in switch piglets: in vivo mean (standard deviation) 112 (12) versus sham 100 (10) beats per minute, (p = 0.042); in vitro (Langendorff preparation): 89 (9) versus sham 73 (8) beats per minute (p = 0.0056). In vivo maximal heart rate in response to epinephrine was increased in switch piglets, 209 (13) versus 190 (17) beats per minute (p = 0.044). In vitro dose-response curves to norepinephrine were shifted leftward and upwards (p = 0.0014), with an 80% increase in heart rate induced by 0.095 (0.053) norepinephrine micromole per litre perfusate in switch hearts versus 0.180 (0.035) norepinephrine micromole per litre (p = 0.023). Increase in coronary flow on norepinephrine stimulation and maximal coronary flow were significantly reduced in switch hearts: 0.3 (0.2) versus 0.8 (0.4) millilitre per gram heart weight (p = 0.045) and 2.5 (0.4) versus 3.1 (0.4) millilitre per gram heart (p = 0.030), respectively. CONCLUSIONS A combination of increased intrinsic heart rate, increased sensitivity to chronotropic actions of norepinephrine, and a decreased maximal coronary flow creates potential for a mismatch between perfusion and energy demands.
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Coronary re-implantation after completion of neo-aortic reconstruction in arterial switch operation: accurate intraoperative assessment for the optimal re-implantation site. Keio J Med 2010; 58:227-33. [PMID: 20037287 DOI: 10.2302/kjm.58.227] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The arterial switch operation (ASO) has evolved into the treatment of the choice for most forms of transposition of the great arteries (TGA). Despite advancement in the technical aspects of the procedure, certain anatomical variations of the coronary arteries are still considered as surgical risks. We have recently employed a novel technique for coronary artery reconstruction in ASO to achieve further improvement of coronary transfer in cases with complex coronary anatomy. The technical key of the procedure is that reconstruction of the coronary arteries is preceded by neo-aortic anastomosis. After neo-aortic reconstruction is accomplished, the neo-aorta is temporarily distended with removal of the cross-clamp. The distended neo-aorta informs us its postsurgical geometry, which facilitates accurate assessment for the optimal site of coronary button transfer. The technique was feasible in 13 of 15 children who were consecutively treated by our group between 2003 a nd 2008. All patients recovered uneventfully and no coronary perfusion issue has occurred during the follow-up period. However, the complex anatomy of the coronary arteries in two children was not amenable to this technique. One with double loops (1RL; 2Cx) accompanied by side-by-side relationship of the great arteries underwent the open trapdoor technique, while the other with intramural coronary artery underwent the Imai method, that is one of procedure in which the coronary arteries are left in situ. The coronary re-implantation after neo-aortic reconstruction is promising to minimize postsurgical coronary ischemia and suitable for most ASO cases. However, various modifications of coronary transfer are required in a few variations of the coronary anatomy and we have to pursue further technical refinement of coronary artery transfer in ASO.
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Choi BS, Kwon BS, Kim GB, Bae EJ, Noh CI, Choi JY, Yun YS, Kim WH, Lee JR, Kim YJ. Long-term outcomes after an arterial switch operation for simple complete transposition of the great arteries. Korean Circ J 2010; 40:23-30. [PMID: 20111649 PMCID: PMC2812794 DOI: 10.4070/kcj.2010.40.1.23] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2009] [Revised: 07/09/2009] [Accepted: 07/14/2009] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Although coronary artery obstruction, aortic insufficiency (AI), and pulmonary stenosis (PS) have been reported after arterial switch operation (ASO), limited long-term studies on ASO exist. Our study aimed to examine long-term outcomes after ASO for simple complete transposition of the great arteries (TGA). SUBJECTS AND METHODS All 108 patients with simple complete TGA who underwent ASO at Seoul National University Children's Hospital between 1987 and 2004 were enrolled. We retrospectively reviewed the patients' medical records and the results of various functional and imaging studies. RESULTS Among 108 cases of ASO for simple TGA, 96 have been followed-up through the present time (mean follow-up duration was 11.7+/-8.6 years: range= 4 to 23 years). The 20-year rates of freedom from significant AI, PS, and coronary obstruction were 78.6%, 67.8%, and 95.8%, respectively. AI showed a tendency to progress as follow-up time increased in 21.4% of the population studied (p=0.014); however, AS, PS, and PI showed no such progression. Late coronary artery occlusion was not associated with the initial coronary arterial pattern. Re-operations were done for 13 patients (13.5%) at an average of 8+/-4.3 years after ASO. The survival rate was 96%, while the re-operation-free was 90% at 10 years and 83% at 20 years. Most patients showed normal physical growth with good activity {98%; New York Heart Association (NYHA) class 1 activity} and normal development (96%). CONCLUSION Although most patients showed normal physical growth and development after successful ASO, meticulous long-term follow-up is necessary because of progressive AI and coronary complications.
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Affiliation(s)
- Byeong Sam Choi
- Division of Cardiology, Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Bo Sang Kwon
- Division of Cardiology, Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Gi Beom Kim
- Division of Cardiology, Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Eun Jung Bae
- Division of Cardiology, Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Chung Il Noh
- Division of Cardiology, Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Jung Yun Choi
- Division of Cardiology, Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Soo Yun
- Division of Cardiology, Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Woong Han Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Jeong Ryul Lee
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
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Arterial Switch for Transposition of the Great Vessels and Taussig-Bing Anomaly After Six Months of Age. Ann Thorac Surg 2009; 88:1948-51. [DOI: 10.1016/j.athoracsur.2009.08.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2009] [Revised: 08/19/2009] [Accepted: 08/20/2009] [Indexed: 11/22/2022]
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Kotani Y, Honjo O, Osaki S, Kawabata T, Ugaki S, Fujii Y, Yoshizumi K, Kasahara S, Ishino K, Sano S. Effect of modified ultrafiltration on postoperative course in neonates with complete transposition of the great arteries undergoing arterial switch operation. Circ J 2009; 72:1476-80. [PMID: 18724025 DOI: 10.1253/circj.cj-08-0065] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND The purpose of the present study was to evaluate the effect of modified ultrafiltration (MUF) on neonates with transposition of the great arteries (TGA) undergoing arterial switch operation. METHODS AND RESULTS The current study included 36 neonates who underwent an arterial switch operation between 1998 and 2006. Arterio-venous MUF was done in 15 patients (MUF-treated group) and the other 21 patients were controls. Parameters included hematocrit, hemodynamics, pulmonary function, drain loss, leak of peritoneal fluid, length of intubation, and intensive care unit (ICU) stay. The hematocrit increased from 34+/-2% to 47+/-4% in the MUF-treated group. Blood pressure in the MUF-treated group was significantly increased without any change of central venous or left atrial pressure. Post-operative oxygenation in the MUF-treated group was greater than that of the control group (P/F ratio: 258+/-92 vs 170+/-100 mmHg, p<0.05), which did not contribute to decrease in intubation time (54+/-33 vs 52+/-29 h, p=NS). Post-operative chest drain loss and peritoneal fluid leak were comparable. The ICU stay in the MUF-treated group was significantly shorter than that in the controls (101+/-34 vs 139+/-42 h, p<0.05). CONCLUSIONS MUF brought improvement in blood pressure and gas exchange capacity and subsequent shorter ICU stay. MUF did not have significant impact on intubation time and capillary leak.
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Affiliation(s)
- Yasuhiro Kotani
- Department of Cardiovascular Surgery, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan
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Mahle WT, Newburger JW, Matherne GP, Smith FC, Hoke TR, Koppel R, Gidding SS, Beekman RH, Grosse SD. Role of pulse oximetry in examining newborns for congenital heart disease: a scientific statement from the AHA and AAP. Pediatrics 2009; 124:823-36. [PMID: 19581259 DOI: 10.1542/peds.2009-1397] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND The purpose of this statement is to address the state of evidence on the routine use of pulse oximetry in newborns to detect critical congenital heart disease (CCHD). METHODS AND RESULTS A writing group appointed by the American Heart Association and the American Academy of Pediatrics reviewed the available literature addressing current detection methods for CCHD, burden of missed and/or delayed diagnosis of CCHD, rationale of oximetry screening, and clinical studies of oximetry in otherwise asymptomatic newborns. MEDLINE database searches from 1966 to 2008 were done for English-language papers using the following search terms: congenital heart disease, pulse oximetry, physical examination, murmur, echocardiography, fetal echocardiography, and newborn screening. The reference lists of identified papers were also searched. Published abstracts from major pediatric scientific meetings in 2006 to 2008 were also reviewed. The American Heart Association classification of recommendations and levels of evidence for practice guidelines were used. In an analysis of pooled studies of oximetry assessment performed after 24 hours of life, the estimated sensitivity for detecting CCHD was 69.6%, and the positive predictive value was 47.0%; however, sensitivity varied dramatically among studies from 0% to 100%. False-positive screens that required further evaluation occurred in only 0.035% of infants screened after 24 hours. CONCLUSIONS Currently, CCHD is not detected in some newborns until after their hospital discharge, which results in significant morbidity and occasional mortality. Furthermore, routine pulse oximetry performed on asymptomatic newborns after 24 hours of life, but before hospital discharge, may detect CCHD. Routine pulse oximetry performed after 24 hours in hospitals that have on-site pediatric cardiovascular services incurs very low cost and risk of harm. Future studies in larger populations and across a broad range of newborn delivery systems are needed to determine whether this practice should become standard of care in the routine assessment of the neonate.
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Mahle WT, Newburger JW, Matherne GP, Smith FC, Hoke TR, Koppel R, Gidding SS, Beekman RH, Grosse SD. Role of pulse oximetry in examining newborns for congenital heart disease: a scientific statement from the American Heart Association and American Academy of Pediatrics. Circulation 2009; 120:447-58. [PMID: 19581492 DOI: 10.1161/circulationaha.109.192576] [Citation(s) in RCA: 172] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND The purpose of this statement is to address the state of evidence on the routine use of pulse oximetry in newborns to detect critical congenital heart disease (CCHD). METHODS AND RESULTS A writing group appointed by the American Heart Association and the American Academy of Pediatrics reviewed the available literature addressing current detection methods for CCHD, burden of missed and/or delayed diagnosis of CCHD, rationale of oximetry screening, and clinical studies of oximetry in otherwise asymptomatic newborns. MEDLINE database searches from 1966 to 2008 were done for English-language papers using the following search terms: congenital heart disease, pulse oximetry, physical examination, murmur, echocardiography, fetal echocardiography, and newborn screening. The reference lists of identified papers were also searched. Published abstracts from major pediatric scientific meetings in 2006 to 2008 were also reviewed. The American Heart Association classification of recommendations and levels of evidence for practice guidelines were used. In an analysis of pooled studies of oximetry assessment performed after 24 hours of life, the estimated sensitivity for detecting CCHD was 69.6%, and the positive predictive value was 47.0%; however, sensitivity varied dramatically among studies from 0% to 100%. False-positive screens that required further evaluation occurred in only 0.035% of infants screened after 24 hours. CONCLUSIONS Currently, CCHD is not detected in some newborns until after their hospital discharge, which results in significant morbidity and occasional mortality. Furthermore, routine pulse oximetry performed on asymptomatic newborns after 24 hours of life, but before hospital discharge, may detect CCHD. Routine pulse oximetry performed after 24 hours in hospitals that have on-site pediatric cardiovascular services incurs very low cost and risk of harm. Future studies in larger populations and across a broad range of newborn delivery systems are needed to determine whether this practice should become standard of care in the routine assessment of the neonate.
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Modification of the arterial switch operation for transposition of the great arteries with complex coronary artery patterns. Gen Thorac Cardiovasc Surg 2009; 57:281-92. [DOI: 10.1007/s11748-008-0405-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2008] [Indexed: 11/30/2022]
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de Koning WB, van Osch-Gevers M, Ten Harkel ADJ, van Domburg RT, Spijkerboer AW, Utens EMWJ, Bogers AJJC, Helbing WA. Follow-up outcomes 10 years after arterial switch operation for transposition of the great arteries: comparison of cardiological health status and health-related quality of life to those of the a normal reference population. Eur J Pediatr 2008; 167:995-1004. [PMID: 17987315 DOI: 10.1007/s00431-007-0626-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2007] [Revised: 10/01/2007] [Accepted: 10/02/2007] [Indexed: 10/22/2022]
Abstract
The purpose of this study was to investigate the cardiological health status and health-related quality of life after the arterial switch operation (ASO) for transposition of the great arteries (TGA) in comparison with a normative reference group. Chart review and cross-sectional systematic follow-up, including echocardiography, exercise testing, and electrocardiography, were performed on all survivors of ASO for TGA between 1990 and 1995. Health-related quality of life (HRQOL) was assessed using a standardized questionnaire. A normative reference group was included. Forty-nine survivors [median age at operation 13 days, mean age at follow-up 11 +/- 2 years (37/49 with intact ventricular septum] were identified. Thirty-three of 49 patients (67%) [22/33 TGA with intact ventricular septum (IVS)] participated in cross-sectional follow-up. Cumulative 10-year event-free survival was 88% and the re-intervention rate 6%. Aortic root dilatation occurred in 70% of patients; none had severe aortic regurgitation. Left ventricular function was normal. Exercise performance (85% of reference capacity, p = 0.02), maximal oxygen uptake (85%, p < 0.01) and peak heart rate (95%, p < 0.01) were decreased. Exercise electrocardiogram was normal as was rhythm status. Unfavourable outcomes on HRQOL were found for motor functioning and positive emotional functioning. Overall there were no significant differences between TGA/IVS and TGA/VSD. We conclude that at mid- to long-term follow-up after ASO, major events and re-interventions (6%) occur infrequently. Exercise capacity and maximal oxygen uptake are lower than those in a reference population, which could not be related to diminished ventricular function. Aortic root dilatation is frequent, irrespective of the anatomical subgroup. Severe aortic regurgitation or left ventricular dilatation was not found. The unfavourable health-related quality of life deserves further attention.
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Affiliation(s)
- Wilfred B de Koning
- Department of Paediatrics (Division of Cardiology), Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands
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Gottlieb D, Schwartz ML, Bischoff K, Gauvreau K, Mayer JE. Predictors of Outcome of Arterial Switch Operation for Complex D-Transposition. Ann Thorac Surg 2008; 85:1698-702; discussion 1702-3. [PMID: 18442569 DOI: 10.1016/j.athoracsur.2008.01.075] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2007] [Revised: 01/22/2008] [Accepted: 01/23/2008] [Indexed: 11/30/2022]
Affiliation(s)
- Danielle Gottlieb
- Department of Cardiology and Cardiovascular Surgery, Children's Hospital Boston, Boston, Massachusetts, USA.
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71
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Abstract
The arterial switch operation has become the preferred procedure for surgical management of transposition, defined on the basis of concordant atrioventricular and discordant ventriculo-arterial connections. We conducted a retrospective evaluation of our experience in 61 infants with this segmental combination, seen from January, 1997, to July, 2003, in order to determine the factors that are associated with a prolonged postoperative course. Factors independently associated with a prolonged postoperative stay in the cardiac intensive care unit included prematurity, difficulty in feeding, capillary leak, need for preoperative inotropic support, and postoperative infectious complications. Future research is warranted designed to minimize the impact of capillary leak and postoperative infectious complications. In addition, based on these results, our practice has evolved to initiate enteral feedings in the preoperative period if feasible, with such enteral feedings resumed as soon as possible following surgery.
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Ullmann MV, Gorenflo M, Bolenz C, Sebening C, Goetze M, Arnold R, Ulmer HE, Hagl S. Late results after extended pulmonary artery reconstruction in the arterial switch operation. Ann Thorac Surg 2007; 81:2259-66. [PMID: 16731163 DOI: 10.1016/j.athoracsur.2006.01.037] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2005] [Revised: 01/05/2006] [Accepted: 01/05/2006] [Indexed: 11/22/2022]
Abstract
BACKGROUND Pulmonary artery stenosis remains the most frequent late complication and cause of reintervention after the arterial switch operation for transposition of the great arteries. We investigated the influence of an extended pericardial patch augmentation of the neopulmonary root and pulmonary artery on late pulmonary artery stenosis development. METHODS Augmentation of the neopulmonary root and pulmonary artery was achieved by reconstructing the posterior wall using a large glutaraldehyde-treated autologous pericardial patch. Reviewed were regular follow-up echocardiograms from 58 out of 87 patients undergoing the arterial switch operation who presented a follow-up period of at least 5 years. An actual follow-up echocardiographic evaluation focusing on the maximal instantaneous transpulmonary continuous-wave (cw)-Doppler gradient was performed, followed by cardiac catheterization when indicated (peak cw-Doppler gradient > 40 mm Hg). RESULTS Follow-up was 8.9 [5 to 15] years. There was no reintervention due to residual pulmonary artery stenosis. Actual Doppler examination revealed a transpulmonary peak gradient of 19.5 [0 to 56] mm Hg, compared with 20 [0 to 60] mm Hg at discharge. Forty-three patients (74.1%) had no or only trivial pulmonary artery stenosis (pressure gradient < 25 mm Hg), 14 patients (24.2%) had mild stenosis (25 to 49 mm Hg), and 1 patient (1.7%) had moderate stenosis (50 to 79 mm Hg). CONCLUSIONS Compared with the majority of literature data, we could demonstrate a low incidence of late pulmonary artery stenosis after the arterial switch operation by employing an extended pericardial patch reconstruction technique with augmentation of the neopulmonary root and pulmonary artery.
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Affiliation(s)
- Michael V Ullmann
- Department of Cardiac Surgery, University Medical Center, University of Heidelberg, Heidelberg, Germany.
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73
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Qamar ZA, Goldberg CS, Devaney EJ, Bove EL, Ohye RG. Current Risk Factors and Outcomes for the Arterial Switch Operation. Ann Thorac Surg 2007; 84:871-8; discussion 878-9. [PMID: 17720393 DOI: 10.1016/j.athoracsur.2007.04.102] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2007] [Revised: 03/30/2007] [Accepted: 04/02/2007] [Indexed: 10/22/2022]
Abstract
BACKGROUND The arterial switch operation is the preferred treatment for dextrotransposition of the great arteries and some forms of double-outlet right ventricle. METHODS All patients undergoing an arterial switch operation at a single institution from January 1, 1999, to September 1, 2005, were reviewed. RESULTS Of the 168 patients, median age was 2 days (range, 0 to 358) and weight was 3.5 kg (range, 1.9 to 11.8 kg). Eleven patients were less than 36 weeks gestational age. Forty percent had coronary patterns other than usual. Mean cardiopulmonary bypass (CPB) time was 147 +/- 45 minutes, and mean cross-clamp time was 77 +/- 27 minutes. At a mean follow-up of 19 +/- 21 months, there were 10 (6%) hospital and 4 (3%) late deaths. Actuarial 1-month, 1-year, and 3-year survivals were 94%, 90%, and 89%, respectively. Bivariate analysis revealed weight less than 2.5 kg (p = 0.032), gestational age less than 36 weeks (p = 0.002), and CPB time greater than 150 minutes (p = 0.0075) decreased hospital survival. Intermediate-term survival was negatively impacted by weight less than 2.5 kg (p = 0.017), gestational age less than 36 weeks (p = 0.0096), CPB time greater than 150 minutes (p = 0.0050), and age at presentation greater than 4 weeks (p = 0.034). By multivariate analysis, gestational age less than 36 weeks (p = 0.0051) and CPB time greater than 150 minutes (p = 0.016) were independent risk factors for hospital mortality. Gestational age less than 36 weeks (p = 0.0096) and CPB time greater than 150 minutes (p = 0.005) were also independent predictors of intermediate-term mortality. Coronary anatomy could not be shown to affect survival, including no deaths among the 12 patients with intramural coronaries. CONCLUSIONS The arterial switch operation can be performed with low mortality regardless of diagnosis or coronary pattern. The premature patient and minimizing CPB time remain as challenges to optimize outcomes for the arterial switch operation.
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Affiliation(s)
- Zuhab A Qamar
- Division of Pediatric Cardiovascular Surgery, C. S. Mott Children's Hospital, Ann Arbor, Michigan, USA
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74
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75
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Bautista-Hernandez V, Marx GR, Bacha EA, del Nido PJ. Aortic Root Translocation Plus Arterial Switch for Transposition of the Great Arteries With Left Ventricular Outflow Tract Obstruction. J Am Coll Cardiol 2007; 49:485-90. [PMID: 17258095 DOI: 10.1016/j.jacc.2006.09.031] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Revised: 09/08/2006] [Accepted: 09/11/2006] [Indexed: 11/17/2022]
Abstract
OBJECTIVES The goal of our study was to report our intermediate-term results with aortic root translocation plus arterial switch for d-transposition of the great arteries with left ventricular outflow tract obstruction. BACKGROUND A d-transposition of the great arteries with left ventricular outflow tract obstruction represents a difficult surgical problem. The Rastelli procedure is the usual approach to this condition. However, recurrent left ventricular outflow tract obstruction and early conduit obstruction as well as arrhythmias and troublesome late mortality are significant limitations. METHODS From 1993 to 2005, 11 children (8 male, 3 female) ages 1 month to 11 years (median age 7 months) have undergone aortic root autograft translocation plus arterial switch to correct d-transposition of the great arteries with left ventricular outflow tract obstruction. The native aortic root was excised from the right ventricle infundibulum and inserted into the left ventricular outflow, enlarging the outflow tract by resecting the outlet septum and an appropriate-size ventricular septal defect patch. After coronary artery reimplantation, right ventricular outflow reconstruction was achieved with a homograft. RESULTS There were no early or late deaths. With a median follow-up of 59 months (range 2 to 137 months), 5 patients required 6 conduit replacement procedures at a median time of 53 months. Two patients required an implantable defibrillator for ventricular arrhythmias. None of the patients have developed left ventricular outflow tract obstruction. CONCLUSIONS Aortic root autograft plus arterial switch procedure is a good option for the surgical management of infants and children with d-transposition of the great arteries and left ventricular outflow tract obstruction and results in a more anatomic repair compared with Rastelli operation. Intermediate-term results indicate good relief of left ventricular outflow tract obstruction and need for conduit replacement compares favorably with the Rastelli procedure for this lesion.
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Affiliation(s)
- Victor Bautista-Hernandez
- Department of Cardiac Surgery, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts 02115, USA
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76
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Chang YH, Sung SC, Lee HD, Kim S, Woo JS, Lee YS. Coronary reimplantation after neoaortic reconstruction can yield better result in arterial switch operation: comparison with open trap door technique. Ann Thorac Surg 2006; 80:1634-40. [PMID: 16242429 DOI: 10.1016/j.athoracsur.2005.04.056] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2005] [Revised: 04/26/2005] [Accepted: 04/26/2005] [Indexed: 11/19/2022]
Abstract
BACKGROUND Accurate coronary reimplantation is the most important component in the arterial switch operation. It is especially demanding for the less experienced surgeons. We compared the result of the technique of coronary reimplantation after neoaortic reconstruction with that of the open trap door technique. METHODS From March 1994 to June 2004, 103 consecutive patients underwent the arterial switch operation by one surgeon. Patients who underwent coronary artery transfer with other modified techniques were excluded. Diagnoses of 94 patients were transposition of the great arteries with intact ventricular septum (n = 50), transposition of the great arteries with ventricular septal defect (n = 26), and the Taussig-Bing anomaly (n = 18). An aortic arch anomaly was present in 13 patients. The median age of the patients was 12 days and the mean body weight was 3.5 kg. Coronary reimplantation after neoaortic reconstruction was applied to 34 patients (group I), and the open trap door technique was applied to the rest (group II). RESULTS Preoperative data were similar in both groups. Four patients in group II required intraoperative revision of a transferred coronary artery, and 1 patient with an intramural left coronary artery in group I had a conversion to free grafting using the left subclavian artery. Overall early mortality was 17.0% (16 of 94). Mortality in group I (1 of 34; 2.9%) was significantly lower than in group II (15 of 60; 25.0%) (p = 0.008). The leading cause of death in group II was low cardiac output (n = 9). During the follow-up, an aortic regurgitation of greater than mild was detected in 2 patients in group II. CONCLUSIONS Coronary reimplantation after neoaoartic reconstruction is an attractive method to minimize coronary artery transfer-related mortality or morbidity.
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Affiliation(s)
- Yun Hee Chang
- Department of Thoracic and Cardiovascular Surgery, Pusan National University Hospital, Busan, South Korea
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77
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Sarris GE, Chatzis AC, Giannopoulos NM, Kirvassilis G, Berggren H, Hazekamp M, Carrel T, Comas JV, Di Carlo D, Daenen W, Ebels T, Fragata J, Hraska V, Ilyin V, Lindberg HL, Metras D, Pozzi M, Rubay J, Sairanen H, Stellin G, Urban A, Van Doorn C, Ziemer G. The arterial switch operation in Europe for transposition of the great arteries: a multi-institutional study from the European Congenital Heart Surgeons Association. J Thorac Cardiovasc Surg 2006; 132:633-9. [PMID: 16935120 DOI: 10.1016/j.jtcvs.2006.01.065] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2005] [Revised: 12/11/2005] [Accepted: 01/19/2006] [Indexed: 10/24/2022]
Abstract
OBJECTIVES This study analyzes the results of the arterial switch operation for transposition of the great arteries in member institutions of the European Congenital Heart Surgeons Association. METHODS The records of 613 patients who underwent primary arterial switch operations in each of 19 participating institutions in the period from January 1998 through December 2000 were reviewed retrospectively. RESULTS A ventricular septal defect was present in 186 (30%) patients. Coronary anatomy was type A in 69% of the patients, and aortic arch pathology was present in 20% of patients with ventricular septal defect. Rashkind septostomy was performed in 75% of the patients, and 69% received prostaglandin. There were 37 hospital deaths (operative mortality, 6%), 13 (3%) for patients with an intact ventricular septum and 24 (13%) for those with a ventricular septal defect (P < .001). In 36% delayed sternal closure was performed, 8% required peritoneal dialysis, and 2% required mechanical circulatory support. Median ventilation time was 58 hours, and intensive care and hospital stay were 6 and 14 days, respectively. Although of various preoperative risk factors the presence of a ventricular septal defect, arch pathology, and coronary anomalies were univariate predictors of operative mortality, only the presence of a ventricular septal defect approached statistical significance (P = .06) on multivariable analysis. Of various operative parameters, aortic crossclamp time and delayed sternal closure were also univariate predictors; however, only the latter was an independent statistically significant predictor of death. CONCLUSIONS Results of the procedure in European centers are compatible with those in the literature. The presence of a ventricular septal defect is the clinically most important preoperative risk factor for operative death, approaching statistical significance on multivariable analysis.
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Viñals F, Ascenzo R, Poblete P, Comas C, Vargas G, Giuliano A. Simple approach to prenatal diagnosis of transposition of the great arteries. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2006; 28:22-5. [PMID: 16795128 DOI: 10.1002/uog.2821] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
OBJECTIVE To analyze the most relevant anomalies, seen in a sequential segmental transverse views approach to imaging the fetal heart, that provide clues to the diagnosis of complete transposition of the great arteries (TGA). METHODS We reviewed retrospectively all the cases of isolated TGA diagnosed in our center or submitted for a second opinion through the spatio-temporal image correlation (STIC) telemedicine (TELE-STIC) program. Only transverse cardiac sweeps were obtained. Digital video clips and STIC volumes were reviewed. The abnormal features on four-chamber, five-chamber, three-vessel (3V) and three vessels and trachea (3VT) views were analyzed. RESULTS The study population consisted of eight fetuses with TGA with normal extracardiac anatomy. The gestational age ranged from 13 to 32 (mean, 23) weeks. The maternal age ranged from 25 to 42 (mean, 32) years. A normal four-chamber view was seen in seven cases. Only one case demonstrated a significant ventricular septal defect. At the level of the five-chamber view a straight course arterial vessel arose from the left ventricle with lateral branches in all fetuses. In the 3V view, the ascending aorta was seen reaching more anteriorly than was the pulmonary artery in six cases. At the level of the 3VT view, two vessels (transverse aortic arch and superior vena cava) rather than three were seen in all cases. CONCLUSION Our proposed sequential segmental approach to imaging the fetal heart apparently allows, in five-chamber and 3VT views, clear and confident signs to be detected that aid diagnosis of TGA.
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Affiliation(s)
- F Viñals
- Centro AGB Ultrasonografìa, Concepción, Chile.
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Losay J, Touchot A, Capderou A, Piot JD, Belli E, Planché C, Serraf A. Aortic valve regurgitation after arterial switch operation for transposition of the great arteries: incidence, risk factors, and outcome. J Am Coll Cardiol 2006; 47:2057-62. [PMID: 16697325 DOI: 10.1016/j.jacc.2005.12.061] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2005] [Revised: 11/25/2005] [Accepted: 12/11/2005] [Indexed: 01/12/2023]
Abstract
OBJECTIVES The aims of this study were to assess the prevalence and incidence of aortic valve regurgitation (AR) after arterial switch operation (ASO), its outcome, and the risk factors. BACKGROUND After an ASO, the long-term fate of the aortic valve is a concern as follow-up lengthens. METHODS Operative and follow-up data on 1,156 hospital survivors after ASOs between 1982 and December 2000 were reviewed. RESULTS At last follow-up (mean duration 76.2 +/- 60.5 months), 172 patients (14.9%) had an AR. Complex transposition of the great arteries, prior pulmonary banding done in 75 patients (21 with intact ventricular septum), aortic arch anomalies, AR at discharge, older age at ASO, and aortic/pulmonary size discrepancy were associated with AR. On multivariate analysis, the presence of a ventricular septal defect (VSD) or AR at discharge multiplied the risk by 2 and 4, respectively. Freedom from AR was 77.9% and 69.5% at 10 and 15 years, respectively; hazard function for AR declined rapidly and slowly increased thereafter. Reoperation from AR was done in 16 patients with one death, valvuloplasty being unsuccessful. Freedom from reoperation for AR was 97.7% and 96.8% at 10 and 15 years, respectively; hazard function slowly increased from 2 to 16 years. Higher late mortality was not associated with AR. CONCLUSIONS After ASO, AR was observed and was related to VSD with attending high pressure and flow and AR at discharge. Progression of AR was slow, but incidence increased with follow-up. Reoperation for AR was rare. Late aortic valve function warrants long-term monitoring.
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Affiliation(s)
- Jean Losay
- Centre Chirurgical Marie-Lannelongue, Le Plessis-Robinson, France.
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80
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Ou P, Mousseaux E, Azarine A, Dupont P, Agnoletti G, Vouhé P, Sidi D, Bonnet D. Detection of coronary complications after the arterial switch operation for transposition of the great arteries: First experience with multislice computed tomography in children. J Thorac Cardiovasc Surg 2006; 131:639-43. [PMID: 16515917 DOI: 10.1016/j.jtcvs.2005.11.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2005] [Revised: 10/30/2005] [Accepted: 11/08/2005] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The main cause of long-term morbidity and mortality after a successful arterial switch operation for transposition of the great arteries is complications at the ostial segments, proximal segments, or both of the retransferred coronary arteries. The purpose of this study was to investigate the clinical usefulness of multislice computed tomographic angiography in detecting ostial and proximal coronary lesions in children having undergone the arterial switch operation for transposition of the great arteries. METHODS Forty-nine children (aged 8.5 +/- 3.9 years) operated on for transposition of the great arteries with the arterial switch operation (follow-up, 8.3 +/- 3.6 years) underwent systematic selective conventional and multislice computed tomographic angiography. The ability of multislice computed tomography in detecting stenosis and other modifications of the coronary arteries' course was analyzed by 2 independent investigators. RESULTS Multislice computed tomography, as compared with selective conventional coronary angiography, permitted assessment of ostial and proximal coronary segments in every patient. It correctly detected the 4 (8.1%) patients with significant coronary lesions (1 with ostial and 3 with proximal coronary stenosis) that had been identified by means of conventional angiography. Multislice computed tomography clearly showed an abnormal course of the coronary artery between the great arteries with compression of the ostial (1 patient) and proximal (3 patients) segments of the retransferred coronary arteries. CONCLUSION These results indicate that multislice computed tomographic angiography is fully accurate in detecting ostial coronary artery stenoses, proximal coronary artery stenoses, or both in pediatric patients having undergone the arterial switch operation for transposition of the great arteries. Our results suggest that multislice computed tomography could be used as a screening technique for detecting coronary complications in the follow-up of the arterial switch operation before having recourse to conventional angiography.
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Affiliation(s)
- Phalla Ou
- Service de Radiologie Pédiatrique, Hôpital Necker-Enfants Malades, Paris, France.
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81
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Ploeg M, Drenthen W, van Dijk A, Pieper PG. Successful pregnancy after an arterial switch procedure for complete transposition of the great arteries. BJOG 2006; 113:243-4. [PMID: 16412005 DOI: 10.1111/j.1471-0528.2006.00816.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M Ploeg
- Department of Cardiology, University Medical Center Groningen, Groningen, The Netherlands
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Schultz AH, Wernovsky G. Late outcomes in patients with surgically treated congenital heart disease. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu 2005:145-56. [PMID: 15818371 DOI: 10.1053/j.pcsu.2005.01.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Optimizing late outcomes should be the end result of improvements in medical and surgical care for congenital heart disease (CHD). In addition to mortality, significant morbidities after surgery for CHD need to be considered. These include the need for reintervention, cardiovascular complications, exercise limitations, neurocognitive morbidities, effects on pregnancy, difficulty obtaining insurance, need for chronic medications, and impaired functional status and quality of life. Long-term outcome studies are difficult to perform, and their interpretation is complicated by intervening changes in management. Specific discussion of long-term follow-up of tetralogy of Fallot, D-transposition of the great arteries, and hypoplastic left heart syndrome illustrates the myriad management changes over the last three decades, the challenges in predicting outcomes for recent patients, and the need for ongoing initiation of long-term follow-up studies.
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Affiliation(s)
- Amy H Schultz
- The Cardiac Center, The Children's Hospital of Philadelphia, PA 19104, USA
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83
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Jouannic JM, Gavard L, Fermont L, Le Bidois J, Parat S, Vouhé PR, Dumez Y, Sidi D, Bonnet D. Sensitivity and Specificity of Prenatal Features of Physiological Shunts to Predict Neonatal Clinical Status in Transposition of the Great Arteries. Circulation 2004; 110:1743-6. [PMID: 15364811 DOI: 10.1161/01.cir.0000144141.18560.cf] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Although prenatal diagnosis of transposition of the great arteries (TGA) reduces neonatal mortality, the preoperative course can be complicated in infants with a restrictive foramen ovale (FO) or a ductus arteriosus (DA) constriction. We sought to determine the specificity and sensitivity of prenatal features of physiological shunts in predicting postnatal clinical status in prenatally diagnosed TGA in babies delivered in a tertiary care center providing all facilities for neonatal urgent care. METHODS AND RESULTS The outcomes of 130 fetuses with TGA were reviewed over a period of 5.5 years. Restriction of the FO and/or constriction of the DA could be analyzed in 119/130 fetuses at 36+/-2.7 weeks of gestation. Twenty-four out of 119 had at least 1 abnormal shunt (23 FO, 5 DA, and 4 both). Thirteen of 130 neonates had profound hypoxemia (PaO2<25 mm Hg) and metabolic acidosis (pH <7.15) in the first 30 minutes and required immediate balloon atrioseptostomy. Two who had abnormal FO and DA died despite aggressive resuscitation. The specificity and sensitivity of the fetal echo in predicting neonatal emergency were 84% and 54%, respectively. The specificity and sensitivity of a combination of restrictive FO and DA constriction were 100% and 31%, respectively. CONCLUSIONS Restriction of the FO and/or of the DA has a high specificity to predict the need for emergency neonatal care in fetuses with TGA, but the sensitivity is too low to detect all high-risk fetuses. Exceptional procedures should be considered for fetuses that have a combination of restrictive FO and DA constriction.
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Mohammadi S, Serraf A, Belli E, Aupecle B, Capderou A, Lacour-Gayet F, Martinovic I, Piot D, Touchot A, Losay J, Planché C. Left-sided lesions after anatomic repair of transposition of the great arteries, ventricular septal defect, and coarctation: Surgical factors. J Thorac Cardiovasc Surg 2004; 128:44-52. [PMID: 15224020 DOI: 10.1016/j.jtcvs.2004.01.040] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This study was undertaken to identify potential anatomic and surgical factors creating left-sided lesions, namely recoarctation of the aorta and neoaortic regurgitation, after anatomic repair of transposition of the great arteries with ventricular septal defect and aortic coarctation. METHODS From 1983 to September 2002, 109 survivors out of 120 patients were studied. Two-stage repair was performed in 42 patients (group A), and single-stage repair was performed in 67 (groups B and C). Before repair, the diameters of the ascending aorta and main pulmonary artery were measured. In the patients with single-stage repair, coarctation was repaired by extended end-to-end anastomosis in 35 patients (group B) and by pulmonary homograft patch augmentation in 32 patients (group C). The ventricular septal defect was closed through the pulmonary artery in 70 patients and through the right ventricle or atrium in 39 patients. The neoaorto-aortic discrepancy was treated by V-shaped resection of the posterior sinus of Valsalva in 7 cases, pulmonary homograft patch in 32 cases, and anterior splitting of the ascending aorta in all cases. Before discharge from the hospital, neoaortic root and ascending aorta diameters and aortic regurgitation grade were recorded. Neoaortic regurgitation progression and reintervention were the end points of follow-up (97.2 +/- 61.2 months). RESULTS Early and late survivals were significantly better in group C (P <.001). Risk factors for neoaortic regurgitation at discharge by univariate analysis were single-stage repair (P <.05) and ventricular septal defect closure through the pulmonary artery (P =.0076). On multivariate analysis, the latter was the only risk factor for neoaortic regurgitation at discharge and at last follow-up. Multivariate analysis showed that higher neoaortic root/ascending aorta ratio and ventricular septal defect closure through the pulmonary artery were risk factors for neoaortic regurgitation evolution at last follow-up. There were 29 reinterventions, 19 for recoarctation of the aorta and 10 for neoaortic regurgitation with or without aortic root dilatation. Group B (P <.05), high neoaortic root/ascending aorta ratio (P <.01), and progressive neoaortic regurgitation (P <.05) were risk factors for recoarctation of the aorta. Group A was a risk factor for aortic valve replacement at 10 years (P <.05). CONCLUSION Neonatal single-stage repair with pulmonary homograft aortic augmentation remains the optimal approach to transposition of the great arteries with ventricular septal defect and aortic coarctation. It provides better early and late survivals and freedoms from left-sided lesions. Avoidance of late recoarctation of the aorta and progressive neoaortic regurgitation requires meticulous closure of the ventricular septal defect and evenly sized reconstruction of the aorta from root to distal arch.
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Affiliation(s)
- Siamak Mohammadi
- Department of Pediatric Cardiac Surgery, Marie-Lannelongue Hospital, Le Plessis-Robinson, France
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85
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Dibardino DJ, Allison AE, Vaughn WK, McKenzie ED, Fraser CD. Current expectations for newborns undergoing the arterial switch operation. Ann Surg 2004; 239:588-96; discussion 596-8. [PMID: 15082962 PMCID: PMC1356266 DOI: 10.1097/01.sla.0000124293.52814.a7] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND The arterial switch operation (ASO) represents a remarkable success story in the surgical treatment of cyanotic congenital heart disease. This study is designed to assess recent outcomes after the ASO in babies presenting with transposition of the great arteries (TGA) and Taussig-Bing anomaly (TBA). METHODS One hundred twenty-five consecutive neonatal and infant ASOs were performed by 2 surgeons at Texas Children's Hospital between July 1, 1995 and October 1, 2003. Patients with TGA and TBA were offered ASO irrespective of patient size and associated cardiac malformations. Primary cardiac diagnoses included TGA with intact ventricular septum (TGA/IVS, n = 79, 63%), TGA with ventricular septal defect (TGA/VSD, n = 37, 30%), and Taussig Bing Anomaly (TBA, n = 9, 7%). RESULTS With complete follow-up, we observed a 30-day mortality rate of 1.6% (n = 2) with 2 late deaths (1.6%), for an overall actuarial survival rate of 96.3% at 7 years. Although there was a significant incidence of complex coronary ostial origin and branching including single coronary (n = 8, 6.4%) and intramural coronary artery (n = 8, 6.4%), this was not associated with increased operative risk. All patients are fully saturated and NYHA functional class I at latest clinic visit (0.3 to 88.4 months postoperatively). There have been no late coronary events. Of 121 survivors, 7 patients (5.8%) have required cardiovascular reoperation at an average of 15.3 +/-11.7 months postoperatively (range, 3.6 to 30.6 months) for an actuarial freedom from reoperation of 90% at 7 years. CONCLUSIONS Using current methodologies, the ASO can be performed safely and with a low incidence of need for reoperation on intermediate follow-up. Recent experience indicates operative survival rates approaching 100%.
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Affiliation(s)
- Daniel J Dibardino
- Division of Congenital Heart Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine and Texas Children's Hospital, 6621 Fannin Street, Houston, TX 77030, USA
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86
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Duncan BW, Poirier NC, Mee RBB, Drummond-Webb JJ, Qureshi A, Mesia CI, Graney JA, Malek CL, Latson LA. Selective timing for the arterial switch operation. Ann Thorac Surg 2004; 77:1691-6; discussion 1697. [PMID: 15111168 DOI: 10.1016/j.athoracsur.2003.10.042] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/16/2003] [Indexed: 11/19/2022]
Abstract
BACKGROUND To determine outcomes for the arterial switch operation individualized according to the underlying anatomy and clinical status. METHODS A retrospective review of a consecutive series of infants less than 90 days of age who underwent the arterial switch operation at a single institution. RESULTS From July 1993-April 2001, 117 infants underwent an arterial switch operation before 90 days of age. Seventy-five patients (64%) had transposition of the great arteries with intact ventricular septum with the aim of operation before 14 days of age; however, 8 of these patients had delayed presentation (range 15-46 days). Thirty-five patients (30%) had transposition with a ventricular septal defect (30 patients) or double outlet right ventricle (5 patients) and normal arch anatomy and were repaired within the first 90 days of life depending on the severity of heart failure at a median of 12 days of age (range 3-83 days). Seven patients (6%) had associated aortic coarctation (5 patients) or interrupted aortic arch (2 patients). One patient died during hospitalization (0.85% hospital mortality) and one patient died from noncardiac causes during a median follow-up of 35 months (1.7% total mortality). Four patients required intervention during follow-up (3.4%) for new aortic coarctation (2 patients), supravalvar pulmonic stenosis (1 patient), or right hemi-diaphragm paralysis (1 patient). CONCLUSIONS Individualized timing for the arterial switch operation within the first ninety days of life produces excellent survival rates for all types of transposition physiology with the expectation of a satisfactory course during follow-up.
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Affiliation(s)
- Brian W Duncan
- Department of Pediatric and Congenital Heart Surgery, The Children's Hospital at The Cleveland Clinic, Cleveland, Ohio 44195, USA.
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Gremmels DB, Tacy TA, Brook MM, Silverman NH. Accuracy of coronary artery anatomy using two-dimensional echocardiography in d-transposition of great arteries using a two-reviewer method. J Am Soc Echocardiogr 2004; 17:454-60. [PMID: 15122186 DOI: 10.1016/j.echo.2004.02.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We evaluated echocardiographic accuracy for defining coronary artery course in d-transposition of great arteries and the impact of a 2-reviewer method on this accuracy. The echocardiogram reports of 108 patients with d-transposition of great arteries were reviewed for coronary anatomy and compared with the operative report. In method 1, from January 1995 to December 1997, a single reader performed the echocardiogram. In method 2, from January 1998 to December 2000, 2 readers scanned individually and a consensus diagnosis was made. Comparing methods 1 and 2, the sensitivity of the echocardiogram to detect variants in coronary anatomy was 68% versus 86%, and negative predictive value was 72% versus 91%. Using a 2-reviewer method improved the accuracy of echocardiographic diagnosis of coronary anatomy with d-transposition of great arteries, aiding in risk assessment and treatment of the patient preoperatively. This study also illustrates that echocardiographic accuracy may be lower in an institution with a surgical volume more representative of the usual pediatric cardiothoracic surgical center.
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Legendre A, Losay J, Touchot-Koné A, Serraf A, Belli E, Piot JD, Lambert V, Capderou A, Planche C. Coronary events after arterial switch operation for transposition of the great arteries. Circulation 2003; 108 Suppl 1:II186-90. [PMID: 12970230 DOI: 10.1161/01.cir.0000087902.67220.2b] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Transfer of the coronary arteries is a crucial step during the arterial switch operation (ASO) for transposition of the great arteries. This retrospective study aims to assess the incidence and risk factors of coronary events after ASO and sensitivity of noninvasive tests in the diagnosis of the coronary obstruction. METHODS AND RESULTS Between 1982 and 2001, 1304 newborn and infants had an ASO and the 1 198 hospital survivors had a 59-month mean follow-up. Coronary events occurred in 94 patients (7.2%; 95% CI, 6 to 9). Survival without coronary events were 92.7, 91, and 88.2% at 1, 10, and 15 years, respectively. The incidence was bimodal: high early and slow later. Multivariate analysis showed correlation with type B or C coronary pattern and major operative events (P<0.0001 and P=0.0024). In a subset of 324 patients who underwent a coronary artery angiography, lesions were observed in 22 patients (6.8%; 95% CI, 5 to 10). Multivariate analysis showed correlation with only type B or C coronary pattern (OR=20.8, P=0.0002). All of these patients had electrocardiogram and echocardiogram, 174 patients also had a treadmill test, and 115 patients had a myocardial scintigraphy. The association of these tests had the highest diagnosis sensitivity, 75%. CONCLUSIONS After ASO, coronary events are not rare, occurring most often early and are an important cause of death. Coronary repair can be needed lately. Noninvasive tests are not sensitive enough to detect significant delayed coronary artery stenosis and coronary artery angiography should be performed.
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Affiliation(s)
- A Legendre
- Centre Chirurgical Marie-Lannelongue, 133 avenue de la Resistance, 92350 Le Plessis-Robinson, France.
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Hövels-Gürich HH, Kunz D, Seghaye MC, Miskova M, Messmer BJ, von Bernuth G. Results of exercise testing at a mean age of 10 years after neonatal arterial switch operation. Acta Paediatr 2003; 92:190-6. [PMID: 12710645 DOI: 10.1111/j.1651-2227.2003.tb00525.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM This prospective follow-up study investigated long-term exercise capacity at a mean age of 10 y after neonatal arterial switch operation for transposition of the great arteries in a large group of homogeneous unselected children. METHODS 56 asymptomatic children, aged 7.9-14.3 y (10.5 +/- 1.6, mean +/- SD), were examined with respect to exercise tolerance, electrocardiographic (ECG) response and activity of biochemical markers for myocardial injury. The protocol included standard electrocardiography, M-mode and two-dimensional echocardiography at rest, a Bruce walking treadmill test to voluntary exhaustion, and determination of cardiac troponin I and T, creatine kinase and myoglobin from venous blood samples at rest and 4 h after exercise. Heart rate, blood-pressure response to exercise stress and endurance time were compared with published results of age-matched normal children. RESULTS 54 patients (96.4%) had normal exercise capacity; a reduction in 2 patients was not due to cardiac disease. Heart rate and systolic blood pressure rose significantly between rest and peak exercise and did not differ from normal controls, whereas diastolic blood pressure was lower. ECG remained normal at rest and on exercise in 54 children (96.4%). Serum values of cardiac troponin I and T, creatine kinase and myoglobin were normal at rest and after exercise in all patients. CONCLUSION The study demonstrates excellent long-term exercise capacity after neonatal arterial switch operation. Exercise testing is a useful and non-invasive screening method to detect patients with clinically relevant exercise-induced myocardial ischaemia and should be routinely performed in growing patients.
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Affiliation(s)
- H H Hövels-Gürich
- Department of Paediatric Cardiology, University Hospital, Aachen University of Technology, Aachen, Germany.
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Yamagishi M, Shuntoh K, Fujiwara K, Shinkawa T, Miyazaki T, Kitamura N. "Bay window" technique for the arterial switch operation of the transposition of the great arteries with complex coronary arteries. Ann Thorac Surg 2003; 75:1769-73; discussion 1773-4. [PMID: 12822613 DOI: 10.1016/s0003-4975(03)00036-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The success of arterial switch operations for transposition of the great arteries largely depends on faultless coronary translocation and subsequent sufficient myocardial perfusion. However, in patients with complex coronary artery anatomy, coronary translocation is often difficult to perform by conventional surgical techniques alone. Therefore we developed the "bay window" technique as a useful adjunct in patients with complex coronary arteries undergoing concomitant coronary translocation and arterial switch operation. Early and midterm results of this technique are described. METHODS Between September 2001 and February 2002, 4 patients with transposition of the great arteries with complex coronary arteries underwent arterial switch operation. The ages of the patients at the time of operation ranged from 8 to 52 days. Great arterial relationships were anteroposterior in 2 patients, right-oblique in 1, and side-by-side in 1. One patient also had ventricular septal defect. Coronary arterial patterns were as follows: absent left main trunk in 1 patient, short left main trunk in 1, and short right main trunk in 1. Both coronary arterial orifices were resected as a tall U-shaped cuff. The inferior half of the coronary cuff was sewn into a J-shaped incision on the pulmonary stump. The superior half of the coronary cuff was folded down inside to form a bay window channel. RESULTS No coronary events occurred (ie, inclusive of coronary stenosis, myocardial infarction, and coronary death). Postoperative echocardiogram demonstrated normal ventricular wall motions in all 4 patients. CONCLUSIONS The bay window technique is an innovative and simple surgical adjunct for translocating complex coronary arteries.
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Affiliation(s)
- Masaaki Yamagishi
- Department of Pediatric Cardiovascular Surgery, Children's Research Hospital, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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Alexi-Meskishvili V, Photiadis J, Nürnberg JH. Replacement of the aortic valve after the arterial switch operation. Cardiol Young 2003; 13:191-3. [PMID: 12887077 DOI: 10.1017/s1047951103000350] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
An 11-month-old infant had undergone a primary arterial switch operation, including the Lecompte maneuver, for correction of discordant ventriculo-arterial connections and closure of an accompanying ventricular septal defect. At discharge, there were no signs of aortic valvar incompetence. Regurgitation across the aortic valve was detected first at the age of 2 years, and then increased progressively, as documented by serial echocardiographic studies. There had been no history of bacterial endocarditis. At the age of 10 years, echocardiography revealed severe aortic valvar incompetence. At operation, the aortic valve had three leaflets, all of which were short, with very restricted movement. Absence of sufficient leaflet tissue precluded a durable valvar reconstruction, so the aortic valve was replaced with a 21 mm mechanical prosthesis. Histological examination of the removed leaflets revealed nodular swelling due to mucous changes of the matrix, as well as fibrous alteration and formation of scar tissue, including areas of fibroblastic and capillary proliferation. There were no signs of calcification or acute inflammatory changes. Improvement of left ventricular function was observed both early postoperatively and later on. Our observation shows that aortic valvar incompetence after an arterial switch operation can be caused by degenerative changes of the neo-aortic leaflets, which prevent plastic reconstruction of the valve, necessitating valvar replacement.
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