The Switch Back Ross Operation: Report of Two Cases With Good Medium-to-Long-Term Follow-Up

2012 ◽  
Vol 3 (2) ◽  
pp. 244-248 ◽  
Author(s):  
Walter Vicente ◽  
Cesar Augusto Ferreira ◽  
Jyrson Guilherme Klamt ◽  
Paulo Henrique Manso ◽  
Oswaldo Cesar Almeida Filho ◽  
...  

Submitted July 20, 2011; Accepted October 6, 2011. Neoaortic root dilatation and neoaortic valve regurgitation following the arterial switch operation for transposition of the great arteries may ultimately require neoaortic root and/or neoaortic valve surgery. The ideal surgical approach to these lesions remains debatable. Hazekamp et al, in 1997, introduced the replacement of the neoaortic root by the neopulmonary autograft and named this procedure the switch back Ross operation. We report two patients who were successfully treated at our institution with the switch back Ross operation, with good results at, respectively, four- and five-year follow-up.

2020 ◽  
Vol 30 (6) ◽  
pp. 917-924
Author(s):  
Fernanda Lübe Antunes Pereira ◽  
Cristiane Nunes Martins ◽  
Roberto Max Lopes ◽  
Matheus Ferber Drummond ◽  
Fernando Antonio Fantini ◽  
...  

Abstract OBJECTIVES Pulmonary artery/aorta (PA/Ao) size discrepancy plays an important role in the development of neoaortic root growth and valve regurgitation. Since 2004, we started using PA reduction to manage severe great vessels root mismatch at the time of arterial switch operation. The purpose of this study is to evaluate the impact of this technique in the mid- and long-term follow-up. METHODS Patients considered to have severe PA/Ao mismatch (>2:1 ratio) underwent resection of a 3- to 4-mm flap of the posterior PA wall. Patients submitted to this technique were followed up with clinical and image examinations. Echocardiographic findings were reviewed, and Z-scores were recorded to evaluate the incidence and progression of neoaortic root dilatation and valve regurgitation. RESULTS The median (Q1–Q3) follow-up time was 8 years (3–11). Before arterial switch operation, the median (Q1–Q3) Z-score of the PA annulus was 2.90 (2.75–3.75). At the latest follow-up, the median Z-score of the neoaortic annulus was 1.34 (0.95–1.66). The mean difference between the Z-scores of PA annulus and neoaortic annulus was 1.56 (P < 0.0001). The mean value of the sinus of Valsalva was +0.29 ± 1, that of sinotubular junction was +0.71 ± 0.6 and that of ascending Ao was +1.09 ± 0.7. There was no severe dilatation of the neoaortic annulus, neoaortic root or ascending Ao during follow-up. Neoaortic valve regurgitation was none or mild in 93% of patients. CONCLUSIONS PA reduction proved to be a feasible and low-risk procedure to approach PA/Ao mismatch in arterial switch operation. Mid- and long-term follow-up showed a tendency towards stabilization of the neoaortic root dilatation and satisfactory valve performance after the procedure. Further investigation is required with a larger population and longer-term follow-up.


2009 ◽  
Vol 35 (4) ◽  
pp. 582-588 ◽  
Author(s):  
Kristof D.H.M. Vandekerckhove ◽  
Nico A. Blom ◽  
Shirin Lalezari ◽  
Dave R. Koolbergen ◽  
Marry E.B. Rijlaarsdam ◽  
...  

2012 ◽  
Vol 60 (S 01) ◽  
Author(s):  
I Kammerer ◽  
M Höhn ◽  
AH Kiessling ◽  
S Becker ◽  
FU Sack

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Jane Margaret Irwin ◽  
Geoffrey Binney ◽  
Kimberlee Gauvreau ◽  
Sitaram Emani ◽  
Elizabeth Blume ◽  
...  

Introduction: Neo-aortic root dilation (ARD) is common after arterial switch operation (ASO) for D-loop transposition of the great arteries (TGA). We sought to compare short and long-term outcomes for bicuspid native pulmonary valve (BNPV) patients to those with normal trileaflet variants (TNPV). Methods: A retrospective cohort of TGA patients undergoing ASO at Boston Children’s Hospital from 1989-2018 was analyzed, matching BNPV patients 1:3 with TNPV patients by year of ASO; those with >mild subpulmonary stenosis or complex TGA were excluded. Categorical and continuous variables were compared using Fisher’s exact and Wilcoxon rank sum tests, respectively. Kaplan-Meier analyses with log-rank test compared groups for time to first reoperation on the neo-aortic valve, first occurrence of ≥moderate neo-aortic regurgitation (AR), and ARD defined as root z-score ≥4. Hazard ratios were estimated based on the Cox proportional hazards model. Results: A total of 83 BNPV patients were matched with 217 TNPV. BNPV patients were more likely to have a VSD (75% vs 44%, p <0.001). Early surgical outcomes including hospital LOS (11 vs 10 days) and 30-day mortality (3.6% vs 2.8%) were similar. During median 10 years follow-up, neo-aortic valve reoperation occurred in 4 BNPV (6%) vs 6 TNPV (3%) patients, with no statistically significant difference in time to reoperation. More BNPV patients had AR at discharge (4.9% vs 0%, p=0.014) and during follow-up (13.4% vs 4.3%, HR 3.9, p=0.004), with shorter time to first occurrence of AR (Figure 1A); this remained significant after adjusting for presence of VSD. Similarly, ARD was more common in BNPV (45% vs 37%, HR 1.64, p=0.02) with shorter time to first occurrence (Figure 1B). Conclusions: While patients with BNPV have similar short-term ASO outcomes, AR and ARD occur more frequently and earlier compared with TNPV patients. Further long-term studies are needed to determine whether this results in greater need for neo-aortic valve reoperation.


Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Laurent de Kerchove ◽  
Jean Rubay ◽  
Agnès Pasquet ◽  
Alain Poncelet ◽  
Munir Boodhwani ◽  
...  

Background: The Ross operation is considered the procedure of choice for aortic valve replacement in children and represents an attractive alternative in selected young adults. However, long term follow-up has demonstrated high rates of pulmonary autograft failure raising concern regarding its clinical utility. We analyze long term outcomes of our Ross series, focusing on predictors of autograft failure. Methods: Between 1991 and 2006, 260 consecutive patients underwent Ross operation. Mean age was 35±15 years (range: 1 day to 64 years) and 75% were male. The technique for autograft implantation was a full root replacement in 70% (n=183), inclusion cylinder in 28% (n=73) and subcoronary in 2% (n=4). Right ventricular outflow tract (RVOT) was reconstructed with a pulmonary homograft in 94% (n=245) and with a xenograft in 6% (n=15). Mean clinical follow-up (97% complete) was 97±46 months (13 to 196 months). Echocardiographic follow-up was available in 234 survivors (94%). Results: Hospital mortality was 1.9% (n=5) and 7 patients died during follow-up (3 non cardiac). Twelve year overall survival was 93±4% and freedom from autograft reoperation and from autograft valve replacement was 83±7% and 94±5% respectively. Twenty-five patients (9.6%) underwent autograft reoperation either for insufficiency (n=8), autograft or ascending aorta dilatation (n=6), or both (n=11) with no mortality. In 76% (n=19) of these patients, the autograft valve was preserved. Predictors for autograft dilatation (≥45 mm) were preoperative aortic insufficiency and full root technique. RVOT reintervention was required in 10 (4%) patients (reoperations n=7, balloon dilatation n=3). Twelve year freedom from RVOT reintervention was 95±4. Twelve year freedom from thrombo-embolic and bleeding events was 99±1% (1 stroke, 1 TIA, 1 bleeding event). Conclusions: This long terms study confirms the excellent survival after Ross operation with an extremely low rate of thrombo-embolic and bleeding events. Autograft reoperation rate remains acceptable. Full root technique is associated with increased risk of autograft dilatation, and should be avoided especially in adults with preoperative aortic insufficiency. Autograft valve preservation is feasible in autograft reoperation.


2014 ◽  
Vol 98 ◽  
pp. 730
Author(s):  
W. Schoening ◽  
N. Buescher ◽  
R. Neuhaus ◽  
A. Pascher ◽  
G. Puhl ◽  
...  

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