Pulmonic Valvular Stenosis Publications (12835)

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Pulmonic Valvular Stenosis Publications

2017Jan
Cardiovasc Interv Ther
Cardiovasc Interv Ther 2017 Jan 20. Epub 2017 Jan 20.
Division of Cardiology, Tokushima Red Cross Hospital, Irinokuchi103, Komatsushima-cho, Komatsushima, 773-8502, Japan.

Antegrade balloon aortic valvuloplasty (BAV) may be more effective than retrograde BAV. However, early restenosis is found inconstantly within three months after BAV. To evaluate the factor of ER after intracardiac echocardiogram (ICE) guided Antegrade BAV, fifty patients with severe aortic stenosis (AS) underwent BAV procedures with ICE. Read More

ER was defined as mean aortic valve pressure gradient (PG) >40 mmHg. During one-year follow-up period, 6 patients died and 2 patients underwent aortic valve replacement. ER was present in 13 patients (26%) at three months after BAV. Procedural, clinical, and hemodynamic data were collected. The mean age of the patient population was 85.4 ± 7.6 years; the mean STS score and EuroSCORE were 7.8 ± 1.1 and 14.6 ± 4.1, respectively. The mean aortic valve PG decreased from 63.4 ± 19.8 to 28.5 ± 10.1 mmHg (p < 0.0001). Baseline characteristics were similar between the two groups. There is no significant difference of mean aortic valve PG immediate after BAV(ER; 29 ± 8.8 mmHg, nonER; 21 ± 6.1 mmHg, p = ns). Univariate analysis showed patients with ER group had significantly higher rate of left ventricular hypertrophy, pulmonary hypertension, and high mean aortic valve PG at admission. Multivariate analysis revealed high mean aortic valve PG at admission as independent predictors of ER. Antegrade BAV may be effective for severe AS. Left ventricular hypertrophy, pulmonary hypertension and high mean PG were predictor of early restenosis. Early intervention should be considered for these patients.

2017Jan
EuroIntervention
EuroIntervention 2017 Jan;12(13):1649-1652
University of Iowa Carver College of Medicine, Iowa City, IA, USA.

Concomitant severe calcific aortic and mitral stenosis is a relatively uncommon but very challenging valvular heart disease to manage. We sought to evaluate the feasibility of a fully percutaneous approach to replace both stenotic native mitral and aortic valves using SAPIEN 3 valves.
An 87-year-old woman with chronic kidney disease stage 3, pul-monary hypertension, chronic obstructive pulmonary disease, a permanent pacemaker, and atrial fibrillation was referred with Class III heart failure symptoms. Read More

Her echocardiogram showed a decreased ejection fraction at 45%, severe mitral stenosis (mean gradient 13 mmHg, area 0.8 cm2) with severe MAC, and severe AS (mean gradient 35 mmHg, area 0.6 cm2). Surgical risk was felt to be very high after evaluation by our cardiothoracic sur-gery group (Society of Thoracic Surgeons risk score of 19%). She underwent simultaneous and fully percutaneous trans-femoral TAVR and transseptal TMVR using SAPIEN 3 valves. Post-implant TEE showed trace paravalvular mitral regurgitation and a mean gradient of 4 mmHg and mean aortic gradient of 8 mmHg with trace paravalvular leak. There was no LVOT obstruction. The patient was discharged seven days after the intervention.
After careful evaluation by experienced Heart Teams, combined native stenotic mitral and aortic valves can be percutaneously replaced using transcatheter SAPIEN 3 valves via transfemoral access in carefully selected high surgical risk patients.

-The SOURCE 3 Registry is a European multicentre, observational registry of the latest generation of transcatheter heart valve, the SAPIEN 3(TM) (Edwards Lifesciences, Irvine, CA/USA). Its purpose is to document outcomes of clinical safety and performance after European approval was given.
-In this manuscript we present the 30-day outcome of the SOURCE 3 Registry. Read More

All data is self-reported and all participating centres have committed to support their consecutive experience with the SAPIEN 3(TM) transcatheter heart valve, dependent on patients consent, before the start of the study. Adverse events are defined using Valve Academic Research Consortium 2 criteria and adjudicated by an independent clinical events committee.
-A total of 1950 patients from 80 centres in 10 countries were enrolled between 07/2014-10/2015. Of those 1947 patients underwent transcatheter aortic valve implantation (TAVI) using the SAPIEN 3(TM) (mean age 81.6 ±6.6 years, 48.1% female). Main comorbidities included coronary artery disease (51.5%), renal insufficiency (27.4%), diabetes (29.5%), chronic obstructive pulmonary disease (16.0%), reporting a mean logistic EuroSCORE of 18.3 ±13.2. Transfemoral access was used in 87.1% (n=1695), non-transfemoral in 252 patients. Conscious sedation was employed in 59.9% of transfemoral procedures and in 50% of patients TAVI was performed without aortic balloon valvuloplasty.Implantation success (one valve in the intended location) was 98.3%. Conversion to conventional surgery (0.6%) and use of cardiopulmonary bypass (0.7%) were rare. Adverse events were low with site reported 30-day all-cause mortality at 2.2%, cardiovascular mortality 1.1%, stroke 1.4%, major vascular complication 4.1%, life-threatening bleeding 5% and post TAVI pacemaker 12%. Moderate or greater paravalvular regurgitation was observed in 3.1% of reporting patients.
-Results from the SOURCE 3 Registry demonstrate contemporary European trends and good outcomes of TAVI in daily practice when using this third generation TAVI device.

The change in the level of NT-Pro-BNP (N-terminal Pro-Brain Natriuretic Peptide) is now considered as a reflection of the hemodynamic alterations and its circulatory reductions reported early after successful PTMC (percutaneous transvenous mitral commissurotomy). The present study aims to assess the change in the level of NT-Pro BNP following PTMC in patients with mitral stenosis and also to determine the association between circulatory NT-Pro BNP reduction and post-PTMC echocardiography parameters.
Twenty five symptomatic consecutive patients with severe MS undergoing elective PTMC were prospectively enrolled. Read More

All patients underwent echocardiography before and also 24 to 48 hours after PTMC. Peripheral blood samples were taken for measurement of NT-Pro BNP before as well as 24 to 48 hours after PTMC. The patients were also classified in group with normal sinus rhythm or having atrial fibrillation (AF) based on their 12-lead electrocardiogram.
It was shown a significant decrease in the parameters of PPG (peak pressure gradient), MPG (mean pressure gradient), PHT (pressure half time), PAP (pulmonary arterial pressure), LAV (left atrial volume), and also a significant increase in MVA (mitral valve area) RVS (right ventricular S velocity), and strains of lateral, septal, inferior and anterior walls of LA following PTMC. The mean LVEF remained unchanged after PTMC. The mean NT-Pro-BNP before PTMC was 309.20 ± 17.97pg/lit that significantly diminished after PTMC to 235.72 ± 22.46pg/lit (p = 0.009). Among all echocardiography parameters, only MPG was positively associated with the change in NT-Pro-BNP after PTMC. Comparing the change in echocardiography indices between the patients with normal rhythm and those with AF, lower change in PAP was showed in the group with AF. However, more change in the level of NT-Pro-BNP after PTMC was shown in the patients with AF compared to those without this arrhythmia Conclusion: PTMC procedure leads to reduce the level of NT-Pro-BNP. The change in NT-Pro-BNP is an indicator for change in MS severity indicated by decreasing MPG parameter. Lower change in PAP as well as higher change in NT-Pro-BNP is predicted following PTMC in the group with AF compared to those with normal sinus rhythm.

2017Jan
Cardiol Young
Cardiol Young 2017 Jan 12:1-5. Epub 2017 Jan 12.
Department of Pediatrics,University of California,San Francisco,California,United States of America.

Tetralogy of Fallot can be corrected with very low mortality at any age, even in neonates, but this does not necessarily mean that it should be corrected in the neonatal period. Although there are many advantages to early correction, a high proportion of these neonates have residual stenosis or pulmonary regurgitation that impairs ventricular function and may require further surgery or implantation of a pulmonary valve. Before we had the ability to correct this anomaly with low mortality in small children, a variety of palliative procedures had to be performed. Read More

Today, with better understanding of the anatomy of tetralogy of Fallot, we should consider what forms of palliation will increase growth of the right ventricular outflow tract in order to reduce the complications of very early surgery.

2017Jan
Echocardiography
Echocardiography 2017 Jan 10. Epub 2017 Jan 10.
Department of Cardiology, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.

The mitral valve area (MVA) poorly reflects the hemodynamic status of (MS). In this study, we compared the MVA with mitral valve resistance (MVR) with regard to the determination of hemodynamic consequences of MS and the immediate outcomes of percutaneous balloon mitral valvuloplasty (PBMV).
In a prospective study, 36 patients with severe rheumatic MS with left ventricular ejection fraction (LVEF) >50% were evaluated. Read More

They underwent transthoracic echocardiography (TTE) and catheterization. The MVA was measured by two-dimensional planimetry and pressure half-time (PHT), and the MVR was calculated using the equation: 1333 × transmitral pressure gradient mean transmitral diastolic flow rate.
The patients' mean age was 47.8±10.5 years. MVR ≥140.6 dynes·s/cm(5) detected systolic pulmonary arterial pressure (sPAP) >55 mm Hg with a sensitivity of 100% and a specificity of 74%. The sensitivity and specificity of MVA<0.75 cm(2) to discriminate elevated sPAP were 81% and 89%, respectively. PHT ≥323.5 mseconds had a sensitivity of 78% and a specificity of 96% to detect an elevated sPAP. To predict a successful PBMV, preprocedural MVR ≥106.1 dynes·s/cm(5) had a sensitivity of 100% and a specificity of 67% (area under the curve [AUC]=0.763; 95% confidence interval [CI]=0.520-1.006; P=.034); preprocedural MVA <0.95 cm(2) had a sensitivity of 78% and a specificity of 73% (AUC=0.730; 95% CI=0.503-0.956; P=.065); and preprocedural PHT ≥210.5 mseconds had a sensitivity of 73% and a specificity of 78% (AUC=0.707; 95% CI=0.474-0.941; P=.095).
MVR seems to be more accurate than MVA in determining the hemodynamic consequences of severe MS as determined by sPAP. In addition, preprocedural MVR detected successful PBMVs.

2016Nov
J Clin Diagn Res
J Clin Diagn Res 2016 Nov 1;10(11):SC05-SC08. Epub 2016 Nov 1.
Researcher, Department of Paediatrics, National Research Center , Cairo, Egypt .

The Mucopolysaccharidoses (MPS) are rare inherited metabolic disorders. They are characterized by the progressive systemic deposition of Glycosaminoglycans (GAGs). GAGs accumulate in the myocardium and the cardiac valves. Read More

Enzyme Replacement Therapy (ERT) is available for MPS I, II, and VI. However, ERT does not appear to improve cardiac valve disease in patients with valve disease present at the start of ERT.
To evaluate the cardiac involvement in Egyptian children with MPS.
Echocardiograms (ECG) were done for 34 patients. Both quantitative and qualitative Glycosaminoglycans (GAGs) in urine and enzyme assay confirmed the diagnosis. Mitral, tricuspid and aortic valves were evaluated for increased thickness, regurgitation and/or stenosis, left ventricular chamber dimensions, septal and posterior wall thicknesses.
The patients' age ranged from 0.9-16 years (median age 4 years). They included 19 cases of MPS I (55.9%), 3 cases of MPS II (8.8%), 2 cases of MPS III (5.9%), 6 cases of MPS IV (17.6%) and 4 cases of MPS VI (11.8%). Heart murmur was heard in 9 of the participants (9/34) (26%). However, 15 patients (15/34) (44%) revealed cardiac lesions on ECG examinations. Mitral regurge (47%), followed by pulmonary hypertension (40%), were the most frequent findings.
The absence of Cardiac murmurs does not exclude the heart involvement. Cardiac valve dysfunction may not be reversible. Regular ECG should be routinely warranted in children with MPS and early ERT are recommended.

The Ross procedure is used in the treatment of selected patients with aortic valve disease. Pulmonary graft stenosis can appear in the long-term follow-up after the Ross intervention, but the factors involved and its clinical implications are not fully known.
To describe the incidence, clinical impact and predictors of homograft stenosis and reintervention after the Ross procedure in a prospective series in a tertiary referral hospital. Read More


From 1997 to 2009, 107 patients underwent the Ross procedure (mean age: 30±11 years; 69% men; 21 aged<18 years), and were followed for echocardiographic homograft stenosis (peak gradient>36mmHg) and surgical or percutaneous homograft reintervention.
After 15 years of follow-up (median: 11 years), echocardiographic and clinical data were available in 91 (85%) and 104 (98%) patients, respectively: 26/91 (29%) patients developed homograft stenosis; 10/104 (10%) patients underwent 13 homograft reintervention procedures (three patients underwent surgical replacement, three received a percutaneous pulmonary valve and one needed stent implantation). The other three patients underwent two consecutive procedures in follow-up; one died because of a procedure-related myocardial infarction. Rates of survival free from homograft stenosis and reintervention at 1, 5 and 10 years were 96%, 82% and 75% and 99%, 94% and 91%, respectively. Paediatric patients had worse survival free from homograft stenosis (hazard ratio [HR] 3.50, 95% confidence interval [CI]: 1.56-7.90; P=0.002), although there were no significant differences regarding reintervention (HR: 2.01, 95% CI: 0.52-7.78; P=0.31). Younger age of homograft donor was also a stenosis predictor (HR: 0.97, 95% CI: 0.94-0.99; P=0.046).
The probabilities of homograft stenosis and reintervention 10 years after the Ross procedure were 29% and 10%, respectively; only one patient had a reintervention-related death. Younger donor and recipient age were associated with a higher rate of stenosis.

2017Jan
Arch Cardiol Mex
Arch Cardiol Mex 2017 Jan - Mar;87(1):72-78. Epub 2016 Dec 30.
Escuela Superior de Medicina Instituto Politécnico Nacional, Ciudad de México, México.

The association of univentricular heart with double inlet and Ebstein's "like" anomaly of the common atrioventricular valve is extremely rare.
Two hearts with this association are described with the segmental sequential system which determine the atrial situs, the types of atrioventricular and ventriculoarterial connections and associated anomalies.
Both hearts had atrial situs solitus, and a univentricular heart with common atrioventricular valve, a foramen primum and double outlet ventricle with normal crossed great arteries. Read More

In the fiefirst heart the four leaflets of the atrioventricular valve were displaced and fused to the ventricular walls, from the atrioventricular union roward the apex with atrialization of the inlet and trabecular zones and there was stenosis in the infundibulum and in the pulmonary valve. In the second heart the proximal segment of the atrioventricular valve was displaced and fused to the ventricular whith shot atrialization and the distal segment was dysplastic with fibromixoid nodules and tendinous cords short and thick; the pulmonary artery was dilate.
Both hearts are grouped in the atrioventricular univentricular connection in the segmental sequential system. The application of this method in the diagnosis of congenital heart disease demonstrates its usefulness. The associations of complex anomalies in these hearts show us the infinite spectrum of presentation of congenital heart disease which expands our knowledge of pediatric cardiology.

2017Jan
Semin. Thorac. Cardiovasc. Surg.
Semin Thorac Cardiovasc Surg 2016 Summer;28(2):514-520. Epub 2016 Jan 8.
Department of Cardiothoracic Surgery, Children's Medical Center, Dallas, Division of Pediatric Cardiothoracic Surgery, University of Texas Southwestern Medical Center, Texas. Electronic address:

The Senning procedure is an operative technique for atrial inversion in congenital heart anomalies. We sought to evaluate our contemporary outcomes employing this technique. A retrospective analysis of all patients who underwent the Senning procedure at our institution was performed. Read More

Hospital records were reviewed, and follow-up data were obtained to evaluate outcomes. Overall, a total of 19 patients underwent a Senning procedure between August 2005 and July 2014. Median age at repair was 594 days (range: 5 days to 15 years). Of those, 7 patients underwent a combined Senning-Rastelli operation and 10 patients underwent a double switch operation (arterial switch or atrial switch). Primary diagnosis was congenitally corrected transposition of the great arteries (cc-TGA) in 17 patients. Associated lesions included ventricular septal defect (n = 10), pulmonary stenosis or atresia (n = 7), and Ebstein׳s anomaly of the tricuspid valve (n = 4). There was an operative death (5%). In all, 2 patients required superior vena cava baffle revision in the operating room. No new pulmonary venous or systemic venous baffle obstruction was observed during follow-up. A total of 5 (26%) patients developed heart block requiring pacemaker implantation. Actuarial survival was 81% at 5 years with a median follow-up of 38 months. The 2 patients in the cc-TGA group were subsequently transplanted. Surviving patients (n = 15) are all well at the last clinical follow-up, most with normal biventricular function. In conclusion, the Senning procedure offers excellent outcomes with regard to systemic and pulmonary venous baffle patency. Results in patients with cc-TGA, however, are affected by significant early mortality after Senning-Rastelli and incidence of left ventricular dysfunction after double switch; which should be considered during patient selection and surgical planning.