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Weinrich JM, Lenz A, Schön G, Behzadi C, Molwitz I, Henes FO, Schoennagel BP, Adam G, von Kodolitsch Y, Bannas P. Magnetic resonance angiography derived predictors of progressive dilatation and surgery of the aortic root in Marfan syndrome. PLoS One 2022; 17:e0262826. [PMID: 35113893 PMCID: PMC8812850 DOI: 10.1371/journal.pone.0262826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 01/05/2022] [Indexed: 11/18/2022] Open
Abstract
Background To identify magnetic resonance (MR) angiography derived predictors of progressive dilatation and surgery of the aortic root in Marfan syndrome. Material and methods We retrospectively included 111 patients (32.7±16.5 years, range: 7–75 years) with a total of 446 MR angiographies. Aortic diameter growth rates of the entire thoracic aorta and Z-scores were estimated from annual diameter measurements. Aortic root shape was subdivided into three different types: (T0) normal; (T1) localized dilatation; (T2) generalized aortic root dilatation. Aortic diameter, Z-score, age, and aortic root shape at baseline were tested as predictors of aortic root dilatation using a multivariate logistic regression model. Results The highest aortic growth rate was observed at the level of the sinuses of Valsalva. Higher aortic root diameters and Z-scores at baseline predicted an increased growth of the aortic root (p = 0.003 and p<0.001). Young age (<30 years) was a predictor for the increase of Z-scores when compared to patients ≥30 years (p = 0.019). 25/111 patients (22.5%) had a T0 aortic root shape, 59/111 patients (53.2%) had a T1 aortic root shape, and 27/111 patients (24.3%) had a T2 aortic root shape. Aortic root shape did not predict further aortic growth (p>0.05). However, significantly more patients undergoing surgery had a generalized aortic dilatation (19/28, 76.9%) than a localized aortic root dilatation (9/28, 32.1%) (p = 0.001). Conclusion Larger baseline aortic root diameter and Z-score as well as young age predict solely progressive aortic root dilatation in Marfan patients. MR angiography derived type of aortic root shape does not predict aortic growth, but patients with generalized aortic root dilatation are referred more frequently for aortic surgery.
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Affiliation(s)
- Julius Matthias Weinrich
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- * E-mail:
| | - Alexander Lenz
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gerhard Schön
- Department of Medical Biometry and Epidemiology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Cyrus Behzadi
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Isabel Molwitz
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Frank Oliver Henes
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Bjoern Philip Schoennagel
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gerhard Adam
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Yskert von Kodolitsch
- Department of Cardiology, University Heart Center Hamburg, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Peter Bannas
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Weininger G, Chan SM, Zafar M, Ziganshin BA, Elefteriades JA. Risk reduction and pharmacological strategies to prevent progression of aortic aneurysms. Expert Rev Cardiovasc Ther 2021; 19:619-631. [PMID: 34102944 DOI: 10.1080/14779072.2021.1940958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION While size thresholds exist to determine when aortic aneurysms warrant surgical intervention, there is no consensus on how best to treat this disease before aneurysms reach the threshold for intervention. Since a landmark study in 1994 first suggested ß-blockers may be useful in preventing aortic aneurysm growth, there has been a surge in research investigating different pharmacologic therapies for aortic aneurysms - with very mixed results. AREAS COVERED We have reviewed the existing literature on medical therapies used for thoracic and abdominal aortic aneurysms in humans. These include ß-blockers, angiotensin II receptor blockers, and angiotensin-converting enzyme inhibitors as well as miscellaneous drugs such as tetracyclines, macrolides, statins, and anti-platelet medications. EXPERT OPINION While multiple classes of drugs have been explored for risk reduction in aneurysm disease, with few exceptions results have been disappointing with an abundance of contradictory findings. The vast majority of studies have been done in patients with abdominal aortic aneurysms or thoracic aortic aneurysm patients with Marfan Syndrome. There exists a striking gap in the literature when it comes to pharmacologic management of non-Marfan Syndrome patients with thoracic aortic aneurysms. Given the differences in pathogenesis, this is an important future direction for aortic aneurysm research.
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Affiliation(s)
- Gabe Weininger
- Aortic Institute at Yale-New Haven Hospital, Yale University School of Medicine, New Haven, CT, USA
| | - Shin Mei Chan
- Aortic Institute at Yale-New Haven Hospital, Yale University School of Medicine, New Haven, CT, USA
| | - Mohammad Zafar
- Aortic Institute at Yale-New Haven Hospital, Yale University School of Medicine, New Haven, CT, USA
| | - Bulat A Ziganshin
- Aortic Institute at Yale-New Haven Hospital, Yale University School of Medicine, New Haven, CT, USA
| | - John A Elefteriades
- Aortic Institute at Yale-New Haven Hospital, Yale University School of Medicine, New Haven, CT, USA
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3
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Cui JZ, Harris KC, Raedschelders K, Hollander Z, Potts JE, De Souza A, Kiess M, McManus BM, Bernatchez P, Raffin LA, Paine H, van Breemen C, Sandor GGS, Esfandiarei M. Aortic Dimensions, Biophysical Properties, and Plasma Biomarkers in Children and Adults with Marfan or Loeys-Dietz Syndrome. CJC Open 2020; 3:585-594. [PMID: 34027363 PMCID: PMC8134910 DOI: 10.1016/j.cjco.2020.12.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/20/2020] [Indexed: 12/13/2022] Open
Abstract
Background Aortic dilation, stiffening, and dissection are common and potentially lethal complications of Marfan syndrome (MFS) and Loeys-Dietz syndrome (LDS), which involve abnormal transforming growth factor beta (TGF-β) signalling. The relation of aortic dimensions, stiffness, and biomarker levels is unknown. The objective of this study was to measure aortic dimensions, stiffness, TGF-β and matrix metalloproteinase (MMP) levels, and endothelial function in patients with MFS, and to compare TGF-β levels in patients with MFS receiving different therapeutic regimens. Methods This was a cohort study of 40 MFS and 4 LDS patients and 87 control participants. Aortic dimension and stiffness indexes, including pulse wave velocity (PWV), were measured using echocardiography and Doppler. Total and free TGF-β and MMP blood levels were measured using Quantikine (R&D Systems, Inc, Minneapolis, MN) and Quanterix (Billerica, MA) kits. Endothelial function was measured using brachial artery flow-mediated dilation. Results PWV was increased in patients with MFS. There were increased MMP-2 levels in those with MFS but no increase in free or total TGF-β or MMP-9 levels compared with control participants. There was no difference in TGF-β levels between MFS patients receiving no medications, angiotensin receptor blockers, and β-blockers. PWV correlated most strongly with age. Endothelial function showed premature gradual decline in patients with MFS. Conclusions Despite the increased PWV, monitoring aortic stiffness or TGF-β levels would not be helpful in patients with MFS. TGF-β levels were not increased and the increased MMP-2 levels suggest consideration of a different therapeutic target.
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Affiliation(s)
- Jason Z Cui
- Department of Anesthesiology, Pharmacology and Therapeutics, British Columbia Children's Hospital Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Cardiothoracic Surgery, School of Medicine, Stanford University, Palo Alto, California, USA
| | - Kevin C Harris
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Koen Raedschelders
- Advanced Clinical Biosystems Research Institute at Smidt Heart Institute, Los Angeles, California, USA
| | - Zsuzsanna Hollander
- UBC James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - James E Potts
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Astrid De Souza
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Marla Kiess
- Division of Cardiology, St Paul's Hospital, Vancouver, British Columbia, Canada
| | - Bruce M McManus
- UBC James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Pascal Bernatchez
- Department of Anesthesiology, Pharmacology and Therapeutics, Centre for Heart and Lung Innovation, St Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Leslie A Raffin
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Heidi Paine
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Cornelis van Breemen
- Department of Anesthesiology, Pharmacology and Therapeutics, British Columbia Children's Hospital Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - George G S Sandor
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mitra Esfandiarei
- Department of Anesthesiology, Pharmacology and Therapeutics, British Columbia Children's Hospital Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Biomedical Sciences, College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
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4
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Lin A, Rajagopalan A, Nguyen HH, White AJ, Vincent AJ, Mottram PM. Dilatation of the Ascending Aorta in Turner Syndrome: Influence of Bicuspid Aortic Valve Morphology and Body Composition. Heart Lung Circ 2020; 30:e29-e36. [PMID: 33132052 DOI: 10.1016/j.hlc.2020.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/30/2020] [Accepted: 10/07/2020] [Indexed: 01/15/2023]
Abstract
BACKGROUND Aortic dilatation and bicuspid aortic valve (BAV) are frequent in Turner syndrome (TS). Due to short stature, aortic size index (ASI)-ascending aortic diameter (AD)/body surface area (BSA)-is used to identify aortic dilatation in TS patients. We sought to: 1) describe echocardiographic findings in the largest cohort of Australian women with TS; 2) assess if ASI progresses differently with age in TS BAV compared to non-syndromic BAV; and 3) determine whether adjustment of AD for body composition may be superior to BSA indexation. METHODS Transthoracic echocardiography (TTE) data were retrospectively collected on 125 women with TS. Body composition was quantified by dual energy X-ray absorptiometry (DXA) in 60 women within 6 months of baseline TTE. Age-matched females with non-syndromic BAV (n=170) were used as controls for TS patients with BAV. RESULTS Mean age of TS women was 28±16 years, and mean height and BSA were 141.6±21.7 cm and 1.4±0.4 m2, respectively. Mean AD was 2.5±0.8 cm, and ASI 2.0±0.6 cm/m2. Aortic dilatation (ASI >2.0 cm/m2) was present in 42 (34%) patients. Turner syndrome women with BAV (n=34; 27%) had a larger ASI than those with tri-leaflet AV (2.2±0.4 cm/m2 vs. 1.7±0.3 cm/m2, p<0.001). In the pooled BAV cohort, TS patients had a higher baseline ASI (2.2±0.4 cm/m2 vs. 2.1±0.3 cm/m2, p=0.02) and greater increase in ASI with age (0.21 mm/m2/year vs. 0.10 mm/m2/year, p=0.01) compared to non-syndromic BAV patients. DXA fat-free mass (r=0.33, p=0.01) and lean mass (r=0.32, p=0.02) correlated with AD, as did BSA (r=0.62, p<0.001). CONCLUSION Turner syndrome women with BAV have a greater degree of baseline aortic dilatation and a twofold faster increase in aortic dimension with age when compared to matched women with non-syndromic BAV. Several DXA-derived body composition parameters correlate with aortic size in TS, however BSA appears to be the most robust method of indexation.
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Affiliation(s)
- Andrew Lin
- Monash Cardiovascular Research Centre, Monash University and Monash Heart, Monash Health, Melbourne, Vic, Australia; Department of Medicine, Monash University, Melbourne, Vic, Australia.
| | | | - Hanh H Nguyen
- Department of Medicine, Monash University, Melbourne, Vic, Australia; Department of Endocrinology, Monash Health, Melbourne, Vic, Australia
| | - Anthony J White
- Monash Cardiovascular Research Centre, Monash University and Monash Heart, Monash Health, Melbourne, Vic, Australia; Department of Medicine, Monash University, Melbourne, Vic, Australia
| | - Amanda J Vincent
- Department of Endocrinology, Monash Health, Melbourne, Vic, Australia; Monash Centre for Health Research and Implementation, Monash University, Melbourne, Vic, Australia
| | - Philip M Mottram
- Monash Cardiovascular Research Centre, Monash University and Monash Heart, Monash Health, Melbourne, Vic, Australia; Department of Medicine, Monash University, Melbourne, Vic, Australia
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5
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Hoskoppal A, Menon S, Trachtenberg F, Burns KM, De Backer J, Gelb BD, Gleason M, James J, Lai WW, Liou A, Mahony L, Olson AK, Pyeritz RE, Sharkey AM, Stylianou M, Wechsler SB, Young L, Levine JC, Tierney ESS, Lacro RV, Bradley TJ. Predictors of Rapid Aortic Root Dilation and Referral for Aortic Surgery in Marfan Syndrome. Pediatr Cardiol 2018; 39:1453-1461. [PMID: 29948025 PMCID: PMC6150800 DOI: 10.1007/s00246-018-1916-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 05/31/2018] [Indexed: 01/15/2023]
Abstract
Few data exist regarding predictors of rapid aortic root dilation and referral for aortic surgery in Marfan syndrome (MFS). To identify independent predictors of the rate of aortic root (AoR) dilation and referral for aortic surgery, we investigated the data from the Pediatric Heart Network randomized trial of atenolol versus losartan in young patients with MFS. Data were analyzed from the echocardiograms at 0, 12, 24, and 36 months read in the core laboratory of 608 trial subjects, aged 6 months to 25 years, who met original Ghent criteria and had an AoR z-score (AoRz) > 3. Repeated measures linear and logistic regressions were used to determine multivariable predictors of AoR dilation. Receiver operator characteristic curves were used to determine cut-points in AoR dilation predicting referral for aortic surgery. Multivariable analysis showed rapid AoR dilation as defined by change in AoRz/year > 90th percentile was associated with older age, higher sinotubular junction z-score, and atenolol use (R2 = 0.01) or by change in AoR diameter (AoRd)/year > 90th percentile with higher sinotubular junction z-score and non-white race (R2 = 0.02). Referral for aortic root surgery was associated with higher AoRd, higher ascending aorta z-score, and higher sinotubular junction diameter:ascending aorta diameter ratio (R2 = 0.17). Change in AoRz of 0.72 SD units/year had 42% sensitivity and 92% specificity and change in AoRd of 0.34 cm/year had 38% sensitivity and 95% specificity for predicting referral for aortic surgery. In this cohort of young patients with MFS, no new robust predictors of rapid AoR dilation or referral for aortic root surgery were identified. Further investigation may determine whether generalized proximal aortic dilation and effacement of the sinotubular junction will allow for better risk stratification. Rate of AoR dilation cut-points had high specificity, but low sensitivity for predicting referral for aortic surgery, limiting their clinical use. Clinical Trial Number ClinicalTrials.gov number, NCT00429364.
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Affiliation(s)
| | | | | | - Kristin M Burns
- National Heart, Lung, and Blood Institute, Bethesda, MD, USA
| | | | - Bruce D Gelb
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Marie Gleason
- Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA, USA
| | - Jeanne James
- Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | | | - Aimee Liou
- Texas Children's Hospital, Baylor College of Medicine, Houston, TX, USA
| | - Lynn Mahony
- Southwestern Medical Center, University of Texas, Dallas, TX, USA
| | | | - Reed E Pyeritz
- The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Mario Stylianou
- National Heart, Lung, and Blood Institute, Bethesda, MD, USA
| | | | - Luciana Young
- Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Jami C Levine
- Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Ronald V Lacro
- Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Timothy J Bradley
- The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
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6
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Tennyson M. Question 2: In children with Marfan's should we beta block from point of diagnosis? Arch Dis Child 2018; 103:997-1000. [PMID: 30154179 DOI: 10.1136/archdischild-2018-315848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/01/2018] [Accepted: 08/01/2018] [Indexed: 11/03/2022]
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7
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Patel AR, Caffarelli A, Pandian NG. Aortic Disorders. Echocardiography 2018. [DOI: 10.1007/978-3-319-71617-6_29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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8
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Abstract
BACKGROUND Marfan syndrome is a hereditary disorder affecting the connective tissue and is caused by a mutation of the fibrillin-1 (FBN1) gene. It affects multiple systems of the body, most notably the cardiovascular, ocular, skeletal, dural and pulmonary systems. Aortic root dilatation is the most frequent cardiovascular manifestation and its complications, including aortic regurgitation, dissection and rupture are the main cause of morbidity and mortality. OBJECTIVES To assess the long-term efficacy and safety of beta-blocker therapy as compared to placebo, no treatment or surveillance only in people with Marfan syndrome. SEARCH METHODS We searched the following databases on 28 June 2017; CENTRAL, MEDLINE, Embase, Science Citation Index Expanded and the Conference Proceeding Citation Index - Science in the Web of Science Core Collection. We also searched the Online Metabolic and Molecular Bases of Inherited Disease (OMMBID), ClinicalTrials.gov and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) on 30 June 2017. We did not impose any restriction on language of publication. SELECTION CRITERIA All randomised controlled trials (RCTs) of at least one year in duration assessing the effects of beta-blocker monotherapy compared with placebo, no treatment or surveillance only, in people of all ages with a confirmed diagnosis of Marfan syndrome were eligible for inclusion. DATA COLLECTION AND ANALYSIS Two review authors independently screened titles and abstracts for inclusion, extracted data and assessed trial quality. Trial authors were contacted to obtain missing data. Dichotomous outcomes will be reported as relative risk and continuous outcomes as mean differences with 95% confidence intervals. We assessed the quality of evidence using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. MAIN RESULTS One open-label, randomised, single-centre trial including 70 participants with Marfan syndrome (aged 12 to 50 years old) met the inclusion criteria. Participants were randomly assigned to propranolol (N = 32) or no treatment (N = 38) for an average duration of 9.3 years in the control group and 10.7 years in the treatment group. The initial dose of propranolol was 10 mg four times daily and the optimal dose was reached when the heart rate remained below 100 beats per minute during exercise or the systolic time interval increased by 30%. The mean (± standard error (SE)) optimal dose of propranolol was 212 ± 68 mg given in four divided doses daily.Beta-blocker therapy did not reduce the incidence of all-cause mortality (RR 0.24, 95% CI 0.01 to 4.75; participants = 70; low-quality evidence). Mortality attributed to Marfan syndrome was not reported. Non-fatal serious adverse events were also not reported. However, study authors report on pre-defined, non-fatal clinical endpoints, which include aortic dissection, aortic regurgitation, cardiovascular surgery and congestive heart failure. Their analysis showed no difference between the treatment and control groups in these outcomes (RR 0.79, 95% CI 0.37 to 1.69; participants = 70; low-quality evidence).Beta-blocker therapy did not reduce the incidence of aortic dissection (RR 0.59, 95% CI 0.12 to 3.03), aortic regurgitation (RR 1.19, 95% CI 0.18 to 7.96), congestive heart failure (RR 1.19, 95% CI 0.18 to 7.96) or cardiovascular surgery, (RR 0.59, 95% CI 0.12 to 3.03); participants = 70; low-quality evidence.The study reports a reduced rate of aortic dilatation measured by M-mode echocardiography in the treatment group (aortic ratio mean slope: 0.084 (control) vs 0.023 (treatment), P < 0.001). The change in systolic and diastolic blood pressure, total adverse events and withdrawal due to adverse events were not reported in the treatment or control group at study end point.We judged this study to be at high risk of selection (allocation concealment) bias, performance bias, detection bias, attrition bias and selective reporting bias. The overall quality of evidence was low. We do not know whether a statistically significant reduced rate of aortic dilatation translates into clinical benefit in terms of aortic dissection or mortality. AUTHORS' CONCLUSIONS Based on only one, low-quality RCT comparing long-term propranolol to no treatment in people with Marfan syndrome, we could draw no definitive conclusions for clinical practice. High-quality, randomised trials are needed to evaluate the long-term efficacy of beta-blocker treatment in people with Marfan syndrome. Future trials should report on all clinically relevant end points and adverse events to evaluate benefit versus harm of therapy.
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Affiliation(s)
- Hyun‐Kyoung Koo
- University of British Columbia217‐2176 Health Sciences MallVancouverBCCanadaV6T 1Z3
| | | | - Vijaya M Musini
- University of British ColumbiaDepartment of Anesthesiology, Pharmacology and Therapeutics2176 Health Science MallVancouverBCCanadaV6T 1Z3
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9
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Wanga S, Hibender S, Ridwan Y, van Roomen C, Vos M, van der Made I, van Vliet N, Franken R, van Riel LA, Groenink M, Zwinderman AH, Mulder BJ, de Vries CJ, Essers J, de Waard V. Aortic microcalcification is associated with elastin fragmentation in Marfan syndrome. J Pathol 2017; 243:294-306. [PMID: 28727149 DOI: 10.1002/path.4949] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 06/17/2017] [Accepted: 07/06/2017] [Indexed: 12/20/2022]
Abstract
Marfan syndrome (MFS) is a connective tissue disorder in which aortic rupture is the major cause of death. MFS patients with an aortic diameter below the advised limit for prophylactic surgery (<5 cm) may unexpectedly experience an aortic dissection or rupture, despite yearly monitoring. Hence, there is a clear need for improved prognostic markers to predict such aortic events. We hypothesize that elastin fragments play a causal role in aortic calcification in MFS, and that microcalcification serves as a marker for aortic disease severity. To address this hypothesis, we analysed MFS patient and mouse aortas. MFS patient aortic tissue showed enhanced microcalcification in areas with extensive elastic lamina fragmentation in the media. A causal relationship between medial injury and microcalcification was revealed by studies in vascular smooth muscle cells (SMCs); elastin peptides were shown to increase the activity of the calcification marker alkaline phosphatase (ALP) and reduce the expression of the calcification inhibitor matrix GLA protein in human SMCs. In murine Fbn1C1039G/+ MFS aortic SMCs, Alpl mRNA and activity were upregulated as compared with wild-type SMCs. The elastin peptide-induced ALP activity was prevented by incubation with lactose or a neuraminidase inhibitor, which inhibit the elastin receptor complex, and a mitogen-activated protein kinase kinase-1/2 inhibitor, indicating downstream involvement of extracellular signal-regulated kinase-1/2 (ERK1/2) phosphorylation. Histological analyses in MFS mice revealed macrocalcification in the aortic root, whereas the ascending aorta contained microcalcification, as identified with the near-infrared fluorescent bisphosphonate probe OsteoSense-800. Significantly, microcalcification correlated strongly with aortic diameter, distensibility, elastin breaks, and phosphorylated ERK1/2. In conclusion, microcalcification co-localizes with aortic elastin degradation in MFS aortas of humans and mice, where elastin-derived peptides induce a calcification process in SMCs via the elastin receptor complex and ERK1/2 activation. We propose microcalcification as a novel imaging marker to monitor local elastin degradation and thus predict aortic events in MFS patients. Copyright © 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Shaynah Wanga
- Department of Medical Biochemistry, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands.,Netherlands Heart Institute, Utrecht, The Netherlands.,Department of Cardiology, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Stijntje Hibender
- Department of Medical Biochemistry, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Yanto Ridwan
- Department of Molecular Genetics, Erasmus MC, Rotterdam, The Netherlands
| | - Cindy van Roomen
- Department of Medical Biochemistry, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Mariska Vos
- Department of Medical Biochemistry, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Ingeborg van der Made
- Department of Experimental Cardiology, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Nicole van Vliet
- Department of Molecular Genetics, Erasmus MC, Rotterdam, The Netherlands
| | - Romy Franken
- Department of Cardiology, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Luigi Amjg van Riel
- Department of Medical Biochemistry, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Maarten Groenink
- Department of Cardiology, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands.,Department of Radiology, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Aeilko H Zwinderman
- Department of Clinical Epidemiology and Biostatistics, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Barbara Jm Mulder
- Department of Cardiology, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Carlie Jm de Vries
- Department of Medical Biochemistry, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
| | - Jeroen Essers
- Department of Molecular Genetics, Erasmus MC, Rotterdam, The Netherlands.,Department of Radiation Oncology, Department of Vascular Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - Vivian de Waard
- Department of Medical Biochemistry, Academic Medical Centre Amsterdam, Amsterdam, The Netherlands
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10
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Habchi KM, Ashikhmina E, Vieira VM, Shahram JT, Isselbacher EM, Sundt TM, Shekar P, Muehlschlegel JD, Body SC. Association between bicuspid aortic valve morphotype and regional dilatation of the aortic root and trunk. Int J Cardiovasc Imaging 2016; 33:341-349. [PMID: 27838896 DOI: 10.1007/s10554-016-1016-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/08/2016] [Indexed: 01/02/2023]
Abstract
Thoracic aortic disease, including thoracic aortic aneurysm (TAA), is frequently seen in patients with bicuspid aortic valve (BAV). We hypothesized that BAV morphotype would be associated with aortic aneurysm phenotypes but that other patient variables would significantly modify this relationship. 829 patients between 18 and 90 years with BAV and available raw imaging of the aortic valve and the ascending aorta to its mid-portion prior to aortic valve and aortic surgery were examined. The sinuses of Valsalva and proximal ascending aorta were measured from 2-dimensional co-planar echocardiographic images. We observed strong associations between patient habitus and raw and normalized dimensions of the aortic root and ascending aorta. Patients with R-L morphotype presented at an older age with larger aortic root but similar ascending aortic dimensions. After accounting for patient morphometric characteristics and severity of aortic valve disease, patients with R-L valve morphotype were marginally more likely to have an aortic root aneurysm (86% vs. 78%; P = 0.043), defined as aortic root dimension Z score ≥3. We observed only small differences in aortic dimensions between BAV morphotypes, that are eclipsed by variation in patient habitus. We interpret these findings to mean that BAV patients will not likely benefit from therapies based on aortic valve morphotype. Rather, we propose that all BAV patients should undergo longitudinal follow-up, independent of valve morphotype. Guidelines for aortic surgery based upon dimensions alone may be improved by considering patient characteristics such as age, body size and other characteristics.
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Affiliation(s)
- Karam M Habchi
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, MA, 02115, USA
| | - Elena Ashikhmina
- Department of Anesthesiology, Mayo Clinic, 200 1st St SW, Rochester, MN, 55905, USA
| | - Vanessa Montiero Vieira
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, MA, 02115, USA
| | - Jasmin T Shahram
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, MA, 02115, USA
| | - Eric M Isselbacher
- Department of Surgery, Massachusetts General Hospital, 55 Fruit St, Boston, MA, 02115, USA
| | - Thoralf M Sundt
- Department of Surgery, Massachusetts General Hospital, 55 Fruit St, Boston, MA, 02115, USA
| | - Prem Shekar
- Department of Surgery, Brigham and Women's Hospital, 75 Francis St, Boston, MA, 02115, USA
| | - Jochen D Muehlschlegel
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, MA, 02115, USA
| | | | - Simon C Body
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, MA, 02115, USA.
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Oyedeji AT, Egbewale BE, Akintunde AA, Ajayi EA, Owojori OO, Balogun MO. Volume Measurements in Aortic Root Assessment Using Two-Dimensional Echocardiography. CLINICAL MEDICINE INSIGHTS-CARDIOLOGY 2016; 10:91-7. [PMID: 27398033 PMCID: PMC4927106 DOI: 10.4137/cmc.s39383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/06/2016] [Accepted: 04/13/2016] [Indexed: 11/09/2022]
Abstract
BACKGROUND Aortic dilatation is associated with the presence of aortic diseases. Current guidelines for assessing the aortic root (AoR) depend on linear measurements acquired by two-dimensional (2D) echocardiography. We considered that real-time three-dimensional echocardiography, which correlates better with AoR volume obtained by computed tomography, is widely unavailable, and therefore, there is a need to determine the AoR volume using 2D echocardiography. METHODS Fifty-one consecutive apparently healthy volunteers were recruited and subsequently divided into three age groups. Specified planes of acquisition and previously defined landmarks were identified, and phases of the cardiac cycle that allowed for measurement standardization were used. Volume was determined by the modified Simpson’s method. RESULTS Although the average diastolic and systolic volume measurements of the AoR dimensions were not significantly different across the three age groups in the study population, a highly significant difference was observed in the volume measurements between male and female normotensive persons, P < 0.01 in each case. AoR volume measurements were five times in the diseased compared with the normotensive individuals; however, linear measurements were only 1.5 times in size of the normal individuals. Both point and interval estimates of the volume measurements of AoR in adult normotensives in three age groups were presented as baseline information. CONCLUSIONS We hereby present a novel way to determine the AoR volume using 2D echocardiography and the normal reference range with respect to age and gender. We also established the relevance of our measurement by comparing the normal population with two isolated diseased aortas.
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Affiliation(s)
- Adebayo T Oyedeji
- Department of Medicine, Ladoke Akintola University Teaching Hospital, Osogbo, Nigeria
| | - Bolaji E Egbewale
- Department of Community Medicine, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
| | - Adeseye A Akintunde
- Department of Medicine, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
| | - Ebenezer A Ajayi
- Department of Medicine, Ekiti State University, Ado-Ekiti, Nigeria
| | - Olukolade O Owojori
- Department of Stroke and Acute Medicine, Doncaster and Bassetlaw NHS Trust, Bassetlaw Hospital, Worksop. UK
| | - Michael O Balogun
- Department of Medicine, Obafemi Awolowo University, Ile-Ife, Nigeria
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Kirali K, Erentuğ V, Rabuş MB, Izgi A, Bozbuğa NU, Erkanli K, Akinci E, Yakut C. Extensive Aortic Surgery in Marfan Syndrome: 16-Year Experience. Asian Cardiovasc Thorac Ann 2016; 11:337-41. [PMID: 14681096 DOI: 10.1177/021849230301100414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The aim of this study was to evaluate the clinical outcome of surgical treatment in patients with Marfan syndrome. Between 1985 and November 2001, 33 patients with Marfan syndrome were operated for chronic aneurysm of the aortic root with involvement of the ascending aorta in 20 patients and type A dissection in 13 patients. The patients comprised 24 males and 9 females with a mean age of 31.9 ± 9.7 years (range, 18 to 54 years). The mean diameter of the ascending aorta was 6.6 ± 1.6 cm and that of the aortic root was 5.4 ± 1.2 cm. Hemodynamic instability was observed in 11 patients. The aortic arch was replaced in 7 patients. There was no hospital mortality. Late mortality was 6%, involving 2 patients who had aortic valve replacement. Actuarial freedom from death was 92.3% ± 7.4% at 12 years and from late aortic complications was 86.4% ± 9.4% at 13 years. Aortic aneurysm was a significant univariate adverse factor for late aortic complications. Aortic surgery can be performed in Marfan patients with low morbidity and mortality. Aggressive surgical intervention does not impair surgical outcome while it decreases reoperation risk.
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Affiliation(s)
- Kaan Kirali
- Department of Cardiovascular Surgery. Koşuyolu Heart and Research Hospital, Kadikoy 81020, Istanbul, Turkey.
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13
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The effect of losartan on progressive aortic dilatation in patients with Marfan's syndrome: a meta-analysis of prospective randomized clinical trials. Int J Cardiol 2016; 217:190-4. [PMID: 27187761 DOI: 10.1016/j.ijcard.2016.04.186] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 04/20/2016] [Accepted: 04/30/2016] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To assess the effect of losartan therapy on progressive aortic dilatation and on clinical outcome in patients with Marfan's syndrome (MFS). METHODS The meta-analysis was instituted, which included studies identified by a systematic review of MEDLINE of peer-reviewed publications. Echocardiogram or MRI measurements of the aortic root dimension and outcome measures of death, cardiovascular surgery and aortic dissection or rupture were compared between patients who were treated and untreated with losartan therapy. RESULTS Six randomized trials with 1398 subjects met all the inclusion criteria and were included in the meta-analysis. Compared with non-losartan treatment, losartan therapy significantly decreased the rate of aortic dilatation (SMD=-0.13 with 95% CI -0.25 to 0.00, p=0.04). The clinical outcome beneficial was not observed in the losartan treatment group when compared with no losartan treatment group (odds ratio=1.04 with 95% CI of 0.57-1.87). CONCLUSION Given the current results of the meta-analysis and together with the lack of associated side effects, it would be reasonable to use losartan in MFS patients with aortic root dilatation. However, no clinical outcome benefits were observed in the losartan treatment group when compared with no losartan treatment group.
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14
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Pregnancy and Thoracic Aortic Disease: Managing the Risks. Can J Cardiol 2015; 32:78-85. [PMID: 26604124 DOI: 10.1016/j.cjca.2015.09.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 09/11/2015] [Accepted: 09/11/2015] [Indexed: 12/24/2022] Open
Abstract
The most common aortopathies in women of childbearing age are bicuspid aortic valve, coarctation of the aorta, Marfan syndrome, Ehlers-Danlos syndrome, Loeys-Dietz syndrome, SMAD3 aortopathy, Turner syndrome, and familial thoracic aneurysm and dissection. The hemodynamic and hormonal changes of pregnancy increase the risk of progressive dilatation or dissection of the aorta in these women. The presence of hypertension increases the risk further. Therefore, appropriate preconception counselling is advised. For women who become pregnant, serial follow-up by a specialized multidisciplinary team throughout pregnancy and postpartum period is required. In this review we discuss risk assessment and management strategies for women with aortopathies.
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15
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Ekhomu O, Naheed ZJ. Aortic Involvement in Pediatric Marfan syndrome: A Review. Pediatr Cardiol 2015; 36:887-95. [PMID: 25669767 DOI: 10.1007/s00246-015-1101-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 01/07/2015] [Indexed: 01/07/2023]
Abstract
Outlining specific protocols for the management of pediatric patients with Marfan syndrome has been challenging. This is mostly due to a dearth of clinical studies performed in pediatric patients. In Marfan syndrome, the major sources of morbidity and mortality relate to the cardiovascular system. In this review, we focus on aortic involvement seen in pediatric patients with Marfan syndrome, ranging from aortic dilatation to aortic rupture and heart failure. We discuss the histological, morphological, and pathogenetic basis of the cardiac manifestations seen in pediatric Marfan syndrome and use a specific case to depict our experienced range of cardiovascular manifestations. The survival for patients with Marfan syndrome may approach the expected survival for non-affected patients, with optimal management. With this potentiality in mind, we explore possible and actual management considerations for pediatric Marfan syndrome, examining both medical and surgical therapy modalities that can make the possibility of improved survival a reality.
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Affiliation(s)
- Omonigho Ekhomu
- Department of Pediatrics, John H. Stroger Hospital, 1901 W. Harrison Street, Chicago, IL, USA,
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16
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Phomakay V, Huett WG, Gossett JM, Tang X, Bornemeier RA, Collins RT. β-Blockers and angiotensin converting enzyme inhibitors: comparison of effects on aortic growth in pediatric patients with Marfan syndrome. J Pediatr 2014; 165:951-5. [PMID: 25109242 PMCID: PMC4330566 DOI: 10.1016/j.jpeds.2014.07.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 05/27/2014] [Accepted: 07/02/2014] [Indexed: 10/27/2022]
Abstract
OBJECTIVES Angiotensin converting enzyme inhibitors (ACEI) have been shown to decrease aortic growth velocity (AGV) in Marfan syndrome (MFS). We sought to compare the effect of β-blockers and ACEI on AGV in MFS. STUDY DESIGN We retrospectively reviewed all data from all patients with MFS seen at Arkansas Children's Hospital between January 1, 1976 and January 1, 2013. Generalized least squares were used to evaluate AGV over time as a function of age, medication group, and the interaction between the 2. A mixed model was used to compare AGV between medication groups as a function of age, medication group (none, β-blocker, ACEI), and the interaction between the 2. RESULTS A total of 67 patients with confirmed MFS were identified (34/67, 51% female). Mean age at first encounter was 13 ± 10 years, with mean follow-up of 7.6 ± 5.8 years. There were 839 patient encounters with a median of 10 (range 2-42) encounters per patient. AGV was nearly normal in the β-blocker group, and was less than either the ACEI or untreated groups. The AGV was higher than normal in ACEI and untreated groups (P < .001 for both). CONCLUSIONS β-blocker therapy results in near-normalization of AGV in MFS. ACEI did not decrease AGV in a clinically significant manner.
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Affiliation(s)
- Venusa Phomakay
- Arkansas Children's Hospital, Little Rock, AR; The University of Arkansas for Medical Sciences, Little Rock, AR
| | | | - Jeffrey M Gossett
- Arkansas Children's Hospital, Little Rock, AR; The University of Arkansas for Medical Sciences, Little Rock, AR
| | - Xinyu Tang
- Arkansas Children's Hospital, Little Rock, AR; The University of Arkansas for Medical Sciences, Little Rock, AR
| | - Renee A Bornemeier
- Arkansas Children's Hospital, Little Rock, AR; The University of Arkansas for Medical Sciences, Little Rock, AR
| | - R Thomas Collins
- Arkansas Children's Hospital, Little Rock, AR; The University of Arkansas for Medical Sciences, Little Rock, AR.
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17
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Koo HK, Lawrence KAK, Musini VM. Beta-blockers for preventing aortic dissection in Marfan's syndrome. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2014. [DOI: 10.1002/14651858.cd011103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hyun-Kyoung Koo
- University of British Columbia; Department of Anesthesiology, Pharmacology and Therapeutics; 217-2176 Health Sciences Mall Vancouver British Columbia Canada V6T 1Z3
| | - Kendra AK Lawrence
- Vancouver Coastal Health Authority; Department of Medicine/Transitional Care Unit; 2307-1255 Bidwell Street Vancouver British Columbia Canada V6G 2K8
| | - Vijaya M Musini
- University of British Columbia; Department of Anesthesiology, Pharmacology and Therapeutics; 217-2176 Health Sciences Mall Vancouver British Columbia Canada V6T 1Z3
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18
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Chun AS, Elefteriades JA, Mukherjee SK. Medical treatment for thoracic aortic aneurysm - much more work to be done. Prog Cardiovasc Dis 2013; 56:103-8. [PMID: 23993243 DOI: 10.1016/j.pcad.2013.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A 45 year old executive presents to your office for risk assessment after learning that his sister required an ascending aortic aneurysm repair. He is a well-informed man, concerned about his personal risk for aortic disease, and undergoes a cardiac screen which reveals a dilated ascending aortic aneurysm, measuring a maximal diameter of 4.4 cm. His aortic valve is tricuspid. He is non-Marfanoid and asymptomatic. He realizes that he does not yet meet guideline criteria for aortic surgery, but he is also cognizant of the fact that he is approaching the cut-off for surgical intervention. He wishes to minimize his future risk of aortic rupture, dissection and aortic expansion and seeks your input. Should 'medical treatment' should be employed at this stage? Is there sufficient basis to initiate any form of pharmacotherapy? Would you start a beta-adrenergic receptor blocker, an angiotensin receptor blocker, a matrix metalloproteinase inhibitor (doxycycline), or a statin to reduce his aortic risk for rupture, dissection or need for surgical repair? Does your clinical decision match evidence from existing data? Our paper will address these issues among other questions relevant to the role of medical therapy for thoracic aortic disease.
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Affiliation(s)
- Andrew S Chun
- Yale University School of Medicine, New Haven, CT, USA
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19
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Impairment of flow-mediated dilation correlates with aortic dilation in patients with Marfan syndrome. Heart Vessels 2013; 29:478-85. [PMID: 23852405 DOI: 10.1007/s00380-013-0393-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 06/27/2013] [Indexed: 01/22/2023]
Abstract
Marfan syndrome is an inherited disorder characterized by genetic abnormality of microfibrillar connective tissue proteins. Endothelial dysfunction is thought to cause aortic dilation in subjects with a bicuspid aortic valve; however, the role of endothelial dysfunction and endothelial damaging factors has not been elucidated in Marfan syndrome. Flow-mediated dilation, a noninvasive measurement of endothelial function, was evaluated in 39 patients with Marfan syndrome. Aortic diameter was measured at the aortic annulus, aortic root at the sinus of Valsalva, sinotubular junction and ascending aorta by echocardiography, and adjusted for body surface area (BSA). The mean value of flow-mediated dilation was 6.5 ± 2.4 %. Flow-mediated dilation had a negative correlation with the diameter of the ascending thoracic aorta (AscAd)/BSA (R = -0.39, p = 0.020) and multivariate analysis revealed that flow-mediated dilation was an independent factor predicting AscAd/BSA, whereas other segments of the aorta had no association. Furthermore, Brinkman index had a somewhat greater influence on flow-mediated dilation (R = -0.42, p = 0.008). Although subjects who smoked tended to have a larger AscAd compared with non-smokers (AscA/BSA: 17.3 ± 1.8 versus 15.2 ± 3.0 mm/m(2), p = 0.013), there was no significant change in flow-mediated dilation, suggesting that smoking might affect aortic dilation via an independent pathway. Common atherogenic risks, such as impairment of flow-mediated dilation and smoking status, affected aortic dilation in subjects with Marfan syndrome.
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20
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Chun AS, Elefteriades JA, Mukherjee SK. Do β-Blockers Really Work for Prevention of Aortic Aneurysms?: Time for Reassessment. AORTA : OFFICIAL JOURNAL OF THE AORTIC INSTITUTE AT YALE-NEW HAVEN HOSPITAL 2013; 1:45-51. [PMID: 26798671 DOI: 10.12945/j.aorta.2013.13.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 03/08/2013] [Indexed: 11/18/2022]
Abstract
Since 1994, when a small 70-patient study seemed to demonstrate that β-blocker treatment could help prevent aortic aneurysms in patients with Marfan syndrome, β-adrenergic-blocking drugs have been increasingly believed to reduce the progression of aortic aneurysms in the general population with aortic disease. This literature review examines the scientific evidence of this treatment and questions whether β-blocker treatment for aortic aneurysms should continue to be uniformly recommended. Five separate clinical trials studying the effects of β-blockade therapy in patients with Marfan syndrome are analyzed, in addition to four other clinical trials studying the effects of β-blockade therapy in patients without Marfan syndrome. The analysis suggests that the scientific evidence for β-blocker treatment is unconvincing, because β-blockade therapy fails to consistently reduce aortic aneurysm growth in patients with or without Marfan syndrome. It is alarmingly clear that prospective, multicenter clinical trials are greatly needed to test the efficacy of this now conventional therapy in a more robust scientific fashion.
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Affiliation(s)
| | - John A Elefteriades
- Aortic Institute, Yale University School of Medicine, New Haven, Connecticut
| | - Sandip K Mukherjee
- Aortic Institute, Yale University School of Medicine, New Haven, Connecticut
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21
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Carlson M, Airhart N, Lopez L, Silberbach M. Moderate Aortic Enlargement and Bicuspid Aortic Valve Are Associated With Aortic Dissection in Turner Syndrome. Circulation 2012; 126:2220-6. [DOI: 10.1161/circulationaha.111.088633] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Background—
Girls and women with Turner syndrome are at risk for aortic dissection and rupture. However, the size of the aorta and the clinical characteristics among those with Turner syndrome and dissection have received little attention.
Methods and Results—
We obtained medical records from 20 individuals who voluntarily participated in the International Turner Syndrome Aortic Dissection Registry. Type A dissections occurred in 17 of 20 (85%) cases, and type B occurred in 3 cases of which 1 occurred after coarctation stent placement. Of those with spontaneous aortic dissections, 18 of 19 (95%) had an associated cardiac malformation that included a bicuspid aortic valve. In 1 individual there was no predisposing finding other than the presence of Turner syndrome. Associated pregnancy was documented in 1 of 19 (5%). More than half (13/19, 68%) came to medical attention >24 hours after the onset of symptoms. For those with type A dissections, the mean ascending aortic size index was 2.7±0.6 cm/m
2
(n=9).
Conclusions—
Aortic dissection in Turner syndrome occurs in young individuals at smaller aortic diameters than in the general population or other forms of genetically triggered aortopathy. The absence of aortic valve or other cardiac malformations appears to markedly reduce the risk of aortic dissection However, aortic dissection can occur in Turner syndrome without cardiac malformations or hypertension. Individuals with Turner syndrome who are >18 years of age with an ascending aortic size index >2.5 cm/m
2
should be considered for an aortic operation to prevent aortic dissection.
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Affiliation(s)
- Misty Carlson
- From the Oregon Health & Science University; Portland, OR (M.C., N.A.); and Children's Hospital at Montefiore, Bronx, NY (L.L., M.S.)
| | - Nathan Airhart
- From the Oregon Health & Science University; Portland, OR (M.C., N.A.); and Children's Hospital at Montefiore, Bronx, NY (L.L., M.S.)
| | - Leo Lopez
- From the Oregon Health & Science University; Portland, OR (M.C., N.A.); and Children's Hospital at Montefiore, Bronx, NY (L.L., M.S.)
| | - Michael Silberbach
- From the Oregon Health & Science University; Portland, OR (M.C., N.A.); and Children's Hospital at Montefiore, Bronx, NY (L.L., M.S.)
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Mulder BJM, Meijboom LJ. Pregnancy and marfan syndrome: an ongoing discussion. J Am Coll Cardiol 2012; 60:230-1. [PMID: 22789887 DOI: 10.1016/j.jacc.2012.03.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Accepted: 03/20/2012] [Indexed: 10/28/2022]
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Kröner ESJ, Scholte AJHA, de Koning PJH, van den Boogaard PJ, Kroft LJM, van der Geest RJ, Hilhorst-Hofstee Y, Lamb HJ, Siebelink HMJ, Mulder BJM, Groenink M, Radonic T, van der Wall EE, de Roos A, Reiber JHC, Westenberg JJM. MRI-assessed regional pulse wave velocity for predicting absence of regional aorta luminal growth in marfan syndrome. Int J Cardiol 2012; 167:2977-82. [PMID: 23000269 DOI: 10.1016/j.ijcard.2012.08.057] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Revised: 08/24/2012] [Accepted: 08/31/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND In patients with Marfan syndrome (MFS), increased aortic wall stiffening may lead to progressive aortic dilatation. Aortic Pulse Wave Velocity (PWV), a marker of wall stiffness can be assessed regionally, using in-plane multi-directional velocity-encoded MRI. This study examined the diagnostic accuracy of regional PWV for prediction of regional aortic luminal growth during 2-year follow-up in MFS patients. METHODS In twenty-one MFS patients (mean age 36 ± 15 years, 11 male) regional PWV and aortic luminal areas were assessed by 1.5 T MRI. At 2-year follow-up, the incidence of luminal growth, defined as mean luminal diameter increase >2mm was determined for five aortic segments (S1, ascending aorta; S2, aortic arch; S3, thoracic descending aorta, S4, supra-renal and S5, infra-renal abdominal aorta). Regional PWV at baseline was considered increased when exceeding age-related normal PWV (healthy volunteers (n=26; mean age 30 ± 10 years, 15 male)) by two standard-errors. Sensitivity and specificity of regional PWV-testing for prediction of regional luminal growth were determined. RESULTS Regional PWV at baseline was increased in 17 out of 102 segments (17%). Significant luminal growth at follow-up was reported in 14 segments (14%). The specificity of regional PWV-testing was ≥ 78% for all aortic segments, sensitivity was ≤ 33%. CONCLUSIONS Regional PWV was significantly increased in MFS patients as compared to healthy volunteers within similar age range, in all aortic segments except the ascending aorta. Furthermore, regional PWV-assessment has moderate to high specificity for predicting absence of regional aortic luminal growth for all aortic segments in MFS patients.
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Affiliation(s)
- Eleanore S J Kröner
- Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands.
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Gao L, Mao Q, Wen D, Zhang L, Zhou X, Hui R. The effect of beta-blocker therapy on progressive aortic dilatation in children and adolescents with Marfan's syndrome: a meta-analysis. Acta Paediatr 2011; 100:e101-5. [PMID: 21443687 DOI: 10.1111/j.1651-2227.2011.02293.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
AIM To assess the effect of beta-blockade therapy on progressive aortic dilatation and on clinical outcome in children and adolescents with Marfan's syndrome (MFS). METHODS The meta-analysis was instituted, which included studies identified by a systematic review of MEDLINE of peer-reviewed publications. Echocardiogram measurements of the aortic root dimension and outcome measures of mortality and major morbidity were compared between patients who were treated and untreated with beta-blockade therapy. RESULTS Five studies were included. A total of 224 young patients treated with beta-blocker therapy and 168 patients did not accept medical management. Compared with non-beta-blockade treatment, beta-blockade therapy significantly decreased the rate of aortic dilatation (SMD = -1.30 with 95% CI -2.11 to -0.49). A tendency of clinical outcome beneficial was observed in the beta-blocker treatment group when compared with no beta-blocker treatment group (odds ratio = 0.87 with 95% CI 0.37-2.04). CONCLUSION There is evidence that beta-blockade therapy can slow down the rate of dilatation of the aorta and has clinical benefits on children and adolescents with MFS.
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Affiliation(s)
- Linggen Gao
- Department of Cardiology, FuWai Hospital and Cardiovascular Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Bonnichsen CR, Sundt TM, Anavekar NS, Foley TA, Morris MF, Martinez MW, Williamson EE, Glockner JF, Araoz PA. Aneurysms of the ascending aorta and arch: the role of imaging in diagnosis and surgical management. Expert Rev Cardiovasc Ther 2011; 9:45-61. [PMID: 21166528 DOI: 10.1586/erc.10.168] [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: 11/08/2022]
Abstract
Thoracic aortic aneurysms tend to be asymptomatic and were previously often diagnosed only after a complication such as dissection or rupture occurred. Better imaging techniques and an increase in the use of cross-sectional imaging has led to an increase in the diagnosis of aortic aneurysms, which has allowed for elective treatment prior to the development of a complication. The location, size and etiology of an aneurysm all impact the clinical outcomes and these factors are used to determine the appropriate timing of surgical replacement. Surgeons often rely on the information obtained from preoperative imaging to determine when to intervene and what type of procedure will be necessary, making it important for the radiologist to understand these issues in order to provide the necessary information. Postoperative imaging after surgical replacement of the aorta is also important, as there are some common findings that occur in this patient population that can impact how they are treated. The purpose of this article is to review the etiology and associated findings of aneurysms of the ascending aorta and arch, with a focus on how computed tomography angiography and magnetic resonance angiography findings are used to determine the appropriate timing for elective replacement and the type of surgical procedure, as well as the role of follow-up imaging. This will include a review of the most commonly performed types of surgical procedures, to provide an understanding of how the findings of preoperative imaging studies impact what the surgeon does in the operating room, as well as the expected findings of postoperative imaging studies.
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Affiliation(s)
- Crystal R Bonnichsen
- Division of Cardiovascular Diseases, Department of Medicine, Mayo Clinic and Mayo Foundation, 200 1st Street SW, Rochester, MN 55905, USA
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Rybczynski M, Mir TS, Sheikhzadeh S, Bernhardt AM, Schad C, Treede H, Veldhoen S, Groene EF, Kühne K, Koschyk D, Robinson PN, Berger J, Reichenspurner H, Meinertz T, von Kodolitsch Y. Frequency and age-related course of mitral valve dysfunction in the Marfan syndrome. Am J Cardiol 2010; 106:1048-53. [PMID: 20854973 DOI: 10.1016/j.amjcard.2010.05.038] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2010] [Revised: 05/18/2010] [Accepted: 05/18/2010] [Indexed: 10/19/2022]
Abstract
Mitral valve (MV) prolapse (MVP) has a high prevalence of 2% to 3% in the general population and thus constitutes the most common cause of severe nonischemic MV regurgitation (MVR). MVP is also common in persons with the Marfan syndrome. However, to date, a large-scale population-based cohort study using modern echocardiographic techniques has not been performed, and the frequency of MVP and the relation of MV dysfunction and age have not been investigated. Therefore, we conducted a population-based cohort study of 204 patients (108 males and 96 females, aged 31.2 ± 16.4 years) with classic Marfan syndrome. We performed echocardiographic follow-up of 174 patients for a mean of 4.4 ± 4.3 years. On the initial or subsequent echocardiographic scan, MVP was present in 82 patients (40%), severe MVR in 25 (12%), and MV endocarditis in 5 patients (2.5%). At 30 years of age, the Weibull cumulative distribution was 42.6% (95% confidence interval [CI] 36% to 50%) for MVP, 56.5% (95% CI 49.3% to 64%) for MVR of any degree, 6.7% (95% CI 3.9% to 11.3%) for severe MVR, and 0.92% (95% CI 0.21% to 3.91%) for MV endocarditis. The cumulative hazard for severe MVR and MV endocarditis was estimated to increase with age. MVP was associated with dural ectasia (p = 0.01), ectopia lentis (p = 0.02), and skeletal involvement (p <0.001). Severe MVR was related to tricuspid valve prolapse (p = 0.002) and to the sporadic form of the Marfan syndrome (p = 0.006). In conclusion, MVP was comparatively frequent in patients with the Marfan syndrome and carries an increased risk of progression to severe MVR and endocarditis, especially in older adults.
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Zanjani KS, Wong AR, Sadiq M, Weber HS, Cutler NG. Device Closure of Patent Ductus Arteriosus in Marfan Patients: Safety and Effect on the Aortic Root Diameter. CONGENIT HEART DIS 2010; 5:439-43. [DOI: 10.1111/j.1747-0803.2010.00448.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Espínola-Zavaleta N, Iqbal FM, Nanda NC, Enríquez-Rodríguez E, Amezcua-Guerra LM, Bojalil-Parra R, Reyes PA, Soto ME. Echocardiographic Study of a Mestizo-Mexican Population with Marfan Syndrome. Echocardiography 2010; 27:923-30. [DOI: 10.1111/j.1540-8175.2010.01208.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Ang KL, Raheel F, Bajaj A, Sosnowski A, Galiñanes M. Early impact of aortic wrapping on patients undergoing aortic valve replacement with mild to moderate ascending aorta dilatation. J Cardiothorac Surg 2010; 5:58. [PMID: 20691060 PMCID: PMC2922107 DOI: 10.1186/1749-8090-5-58] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Accepted: 08/06/2010] [Indexed: 11/20/2022] Open
Abstract
Background The management of mild to moderate dilatation of the ascending aorta of less than 5 cm is controversial, particularly when concomitant surgical correction of aortic valve is required. We investigate the impact of a simple method of aorta reduction using Dacron graft wrapping during aortic valve replacement on the rest of the aorta. Methods We studied 14 patients who had ascending aorta dilatation of 4-5 cm before undergoing aortic wrapping during their aortic valve replacement and compared with their post-operative imaging within a month. Results The diameters of the ascending aorta wrapped with the Dacron graft were significantly reduced within 4 weeks after surgery from 44.7 ± 2.6 to 33.6 ± 3.9 mm (p < 0.001). This was associated with significant reduction in the diameter of rest of ascending aorta: coronary sinuses (from 37.9 ± 4.9 mm to 33.3 ± 6.1 mm; p < 0.001), sinotubular junction (from 33.2 ± 4.7 mm to 30.6 ± 4.4 mm, p = 0.02), and aortic arch (from 34.7 ± 4.3 mm to 32.6 ± 4.1 mm, p = 0.03). Conclusions Reduction of ascending aortic dilatation by wrapping with a Dacron graft in this preliminary study is associated with favourable early reversed aortic remodelling. This supports the hypothesis that correction of mild-moderate dilatation of the ascending aorta with Dacron wrapping at the time of aortic valve surgery may prevent the progression of the dilatation, although the long-term study on a larger population is needed to confirm its benefits.
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Affiliation(s)
- Keng-Leong Ang
- Department of Cardiothoracic Surgery, Glenfield Hospital, Leicester, LE3 9QP, UK
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Early impact of aortic wrapping on patients undergoing aortic valve replacement with mild to moderate ascending aorta dilatation. J Cardiothorac Surg 2010. [PMID: 20691060 DOI: 10.1186/1749-8090-5-58.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The management of mild to moderate dilatation of the ascending aorta of less than 5 cm is controversial, particularly when concomitant surgical correction of aortic valve is required. We investigate the impact of a simple method of aorta reduction using Dacron graft wrapping during aortic valve replacement on the rest of the aorta. METHODS We studied 14 patients who had ascending aorta dilatation of 4-5 cm before undergoing aortic wrapping during their aortic valve replacement and compared with their post-operative imaging within a month. RESULTS The diameters of the ascending aorta wrapped with the Dacron graft were significantly reduced within 4 weeks after surgery from 44.7 +/- 2.6 to 33.6 +/- 3.9 mm (p < 0.001). This was associated with significant reduction in the diameter of rest of ascending aorta: coronary sinuses (from 37.9 +/- 4.9 mm to 33.3 +/- 6.1 mm; p < 0.001), sinotubular junction (from 33.2 +/- 4.7 mm to 30.6 +/- 4.4 mm, p = 0.02), and aortic arch (from 34.7 +/- 4.3 mm to 32.6 +/- 4.1 mm, p = 0.03). CONCLUSIONS Reduction of ascending aortic dilatation by wrapping with a Dacron graft in this preliminary study is associated with favourable early reversed aortic remodelling. This supports the hypothesis that correction of mild-moderate dilatation of the ascending aorta with Dacron wrapping at the time of aortic valve surgery may prevent the progression of the dilatation, although the long-term study on a larger population is needed to confirm its benefits.
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Silversides CK, Kiess M, Beauchesne L, Bradley T, Connelly M, Niwa K, Mulder B, Webb G, Colman J, Therrien J. Canadian Cardiovascular Society 2009 Consensus Conference on the management of adults with congenital heart disease: outflow tract obstruction, coarctation of the aorta, tetralogy of Fallot, Ebstein anomaly and Marfan's syndrome. Can J Cardiol 2010; 26:e80-97. [PMID: 20352138 DOI: 10.1016/s0828-282x(10)70355-x] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
With advances in pediatric cardiology and cardiac surgery, the population of adults with congenital heart disease (CHD) has increased. In the current era, there are more adults with CHD than children. This population has many unique issues and needs. Since the 2001 Canadian Cardiovascular Society Consensus Conference report on the management of adults with CHD, there have been significant advances in the field of adult CHD. Therefore, new clinical guidelines have been written by Canadian adult CHD physicians in collaboration with an international panel of experts in the field. Part II of the guidelines includes recommendations for the care of patients with left ventricular outflow tract obstruction and bicuspid aortic valve disease, coarctation of the aorta, right ventricular outflow tract obstruction, tetralogy of Fallot, Ebstein anomaly and Marfan's syndrome. Topics addressed include genetics, clinical outcomes, recommended diagnostic workup, surgical and interventional options, treatment of arrhythmias, assessment of pregnancy risk and follow-up requirements. The complete document consists of four manuscripts that are published online in the present issue of The Canadian Journal of Cardiology. The complete document and references can also be found at www.ccs.ca or www.cachnet.org.
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Detaint D, Aegerter P, Tubach F, Hoffman I, Plauchu H, Dulac Y, Faivre LO, Delrue MA, Collignon P, Odent S, Tchitchinadze M, Bouffard C, Arnoult F, Gautier M, Boileau C, Jondeau G. Rationale and design of a randomized clinical trial (Marfan Sartan) of angiotensin II receptor blocker therapy versus placebo in individuals with Marfan syndrome. Arch Cardiovasc Dis 2010; 103:317-25. [DOI: 10.1016/j.acvd.2010.04.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2010] [Revised: 04/23/2010] [Accepted: 04/30/2010] [Indexed: 02/04/2023]
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Al-Attar N, Nataf P. [Aneurysms of the ascending thoracic aorta]. Presse Med 2009; 39:26-33. [PMID: 19410424 DOI: 10.1016/j.lpm.2009.01.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2008] [Revised: 01/05/2009] [Accepted: 01/21/2009] [Indexed: 01/05/2023] Open
Abstract
Aneurysms of the ascending aorta carry a high risk of aortic dissection or rupture in the absence of surgical treatment. Aneurysms of the ascending aorta are classified into 2 distinct types according to their etiology and surgical treatment: aortic root aneurysms, in which the dilatation of the aorta involves the initial portion of the aorta and includes the sinuses of Valsalva and supravalvular aortic aneurysms, which involve the ascending thoracic aorta above the sinuses of Valsalva. Echocardiography and CT scan are the main exams in the evaluation of the diameter of the ascending aorta and its follow up. Conservative treatment by par ss-blockers and follow up by echocardiography once or twice a year is recommended for asymptomatic patients. ss-blockers have demonstrated a slowing effect on dilatation of the aortic root and improve survival especially in patients with Marfan's syndrome. Beyond 50mm, an aneurysm is at risk for complications. Supravalvular aortic aneurysms can be treated by a simple supracoronary tube graft unlike aortic root aneurysms in which replacement or repair of the aortic valve is often necessary. A family history and investigation of other members is essential in patients with aortic aneurysms.
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Affiliation(s)
- Nawwar Al-Attar
- Service de chirurgie cardiaque, Hôpital Bichat, AP-HP, F-75877 Paris Cedex 18, France.
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Aortic Disorders. Echocardiography 2009. [DOI: 10.1007/978-1-84882-293-1_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Abstract
Prolonged survival of patients with Marfan syndrome after aortic root replacement has led to an increased number of patients with aortic complications beyond the root. Elective replacement of the aortic root removes the most important predilection site for aneurysms, but the distal aorta remains at risk. Predictors for aortic growth and adverse events in the distal aorta include aortic diameter, aortic distensiblity, previous aortic root replacement, hypertension and aortic regurgitation. After aortic dissection, the initial false lumen diameter is an independent predictor for late aneurysm formation. Although there are a few reports of short-term success after endovascular stent grafting of the descending thoracic aorta, stent grafting in patients with Marfan syndrome is not recommended unless intervention is clearly indicated and the risk of conventional open surgical repair is deemed prohibitive. Optimal long-term outcome demands lifelong radiographic follow-up and medical treatment with beta-blocker therapy. After aortic dissection rigorous antihypertensive medication is of utmost importance. Losartan, an angiotensin II type I receptor antagonist, might offer the first potential for primary prevention of clinical manifestations in Marfan syndrome, but the results of clinical trials have to be awaited. (Neth Heart J 2008;16:382-6.).
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Affiliation(s)
- B J M Mulder
- Department of Cardiology, Academic Medical Center Amsterdam, the Netherlands
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Affiliation(s)
- Martin G. Keane
- From the Departments of Medicine (M.G.K., R.E.P.) and Genetics (R.E.P.) and the Institute for Cardiovascular Medicine (M.G.K., R.E.P.), University of Pennsylvania School of Medicine, Philadelphia
| | - Reed E. Pyeritz
- From the Departments of Medicine (M.G.K., R.E.P.) and Genetics (R.E.P.) and the Institute for Cardiovascular Medicine (M.G.K., R.E.P.), University of Pennsylvania School of Medicine, Philadelphia
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Predictors for aneurismal formation. Int J Cardiovasc Imaging 2008; 24:641-3. [PMID: 18415703 PMCID: PMC2493604 DOI: 10.1007/s10554-008-9310-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2008] [Accepted: 03/25/2008] [Indexed: 11/03/2022]
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Fazel SS, Mallidi HR, Lee RS, Sheehan MP, Liang D, Fleischman D, Herfkens R, Mitchell RS, Miller DC. The aortopathy of bicuspid aortic valve disease has distinctive patterns and usually involves the transverse aortic arch. J Thorac Cardiovasc Surg 2008; 135:901-7, 907.e1-2. [DOI: 10.1016/j.jtcvs.2008.01.022] [Citation(s) in RCA: 141] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2007] [Revised: 12/22/2007] [Accepted: 01/23/2008] [Indexed: 01/15/2023]
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Pape LA, Tsai TT, Isselbacher EM, Oh JK, O'gara PT, Evangelista A, Fattori R, Meinhardt G, Trimarchi S, Bossone E, Suzuki T, Cooper JV, Froehlich JB, Nienaber CA, Eagle KA. Aortic Diameter ≥5.5 cm Is Not a Good Predictor of Type A Aortic Dissection. Circulation 2007; 116:1120-7. [PMID: 17709637 DOI: 10.1161/circulationaha.107.702720] [Citation(s) in RCA: 568] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background—
Studies of aortic aneurysm patients have shown that the risk of rupture increases with aortic size. However, few studies of acute aortic dissection patients and aortic size exist. We used data from our registry of acute aortic dissection patients to better understand the relationship between aortic diameter and type A dissection.
Methods and Results—
We examined 591 type A dissection patients enrolled in the International Registry of Acute Aortic Dissection between 1996 and 2005 (mean age, 60.8 years). Maximum aortic diameters averaged 5.3 cm; 349 (59%) patients had aortic diameters <5.5 cm and 229 (40%) patients had aortic diameters <5.0 cm. Independent predictors of dissection at smaller diameters (<5.5 cm) included a history of hypertension (odds ratio, 2.17; 95% confidence interval, 1.03 to 4.57;
P
=0.04), radiating pain (odds ratio, 2.08; 95% confidence interval, 1.08 to 4.0;
P
=0.03), and increasing age (odds ratio, 1.03; 95% confidence interval, 1.00 to 1.05;
P
=0.03). Marfan syndrome patients were more likely to dissect at larger diameters (odds ratio, 14.3; 95% confidence interval, 2.7 to 100;
P
=0.002). Mortality (27% of patients) was not related to aortic size.
Conclusions—
The majority of patients with acute type A acute aortic dissection present with aortic diameters <5.5 cm and thus do not fall within current guidelines for elective aneurysm surgery. Methods other than size measurement of the ascending aorta are needed to identify patients at risk for dissection.
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Affiliation(s)
- Linda A Pape
- University of Massachusetts Medical School, 55 Lake Ave N, Worcester, MA 01655, USA.
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Lanzarini L, Larizza D, Prete G, Calcaterra V, Meloni G, Sammarchi L, Klersy C. Aortic dimensions in Turnerʼs syndrome: two-dimensional echocardiography versus magnetic resonance imaging. J Cardiovasc Med (Hagerstown) 2007; 8:428-37. [PMID: 17502759 DOI: 10.2459/01.jcm.0000269716.33435.d3] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Patients with Turner's syndrome have an increased risk of cardiac death caused by aortic disease. Consensus has not been reached about the best method to image the aorta in this syndrome. AIM This present study aimed: (i) to evaluate thoracic and abdominal aortic dimensions by two-dimensional echo (2-DE) and magnetic resonance imaging (MRI) and (ii) to assess agreement between 2-DE and MRI measurements. MATERIAL AND METHODS Among 75 kariotypically proven Turner's syndrome patients, 59 (79%) (mean age: 22 +/- 7 years) underwent a 2-DE and an MRI study of the thoracic and proximal abdominal aorta. The aortic root (AR), the sino-tubular aortic junction (STJ), the first part of the ascending thoracic aorta (AscTA), the aortic arch (AArch), the descending thoracic aorta (DTAp) a few centimetres below the isthmus and the abdominal aorta (AbA) were analysed. The Bland and Altman method and Lin's concordance correlation coefficient were utilized to compare 2-DE and MRI aortic dimensions. RESULTS Compared to MRI, feasibility of aortic imaging by 2-DE was identical at AR level, but lower when measuring distal aorta (88% at DTAp and 91.5% at AbA level versus 100%). The 2-DE and MRI showed a very slight difference between measurements and a high concordance correlation coefficient at the level of AR and AscTA; correlations were weaker at the other aortic levels. Absolute differences calculated at each measurement level showed that concordance (defined as differences within 1 mm between 2-DE and MRI absolute measures) was highest at AR (45.6%) and AscTA (28%) level and lowest at STJ (12.2%) level. The 2-DE overestimated aortic arch diameters in approximately 70% of cases, whereas at the remaining aortic levels MRI measurements were usually 1 mm higher compared to the corresponding 2-DE values. CONCLUSIONS Concordance between 2-DE and MRI was found to be very good at the AR and AscTA levels. Because the risk of aortic complication is higher when AR and proximal thoracic aorta are dilated, 2-DE may be considered a useful method to screen for aortic disease and a good choice to follow proximal aortic dimensions over time in Turner's syndrome patients.
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Affiliation(s)
- Luca Lanzarini
- Department of Cardiology, IRCCS-Policlinico S. Matteo, University of Pavia, Pavia, Italy.
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Abstract
Marfan syndrome is a multisystem connective tissue disorder usually associated with mutation in fibrillin, and occasionally with mutation in TGFBR1 or 2. The clinical diagnosis is made using the Ghent nosology, which will unequivocally diagnose or exclude Marfan syndrome in 86% of cases. Use of a care pathway can help implementation of the nosology in the clinic. The penetrance of some features is age dependent, so the nosology must be used with caution in children. Molecular testing may be helpful in this context. The nosology cannot be used in families with isolated aortic dissection, or with related conditions such as Loeys-Dietz syndrome, although it may help identify families for further diagnostic evaluation because they do not fulfill the nosology, despite a history of aneurysm. Prophylactic medical (eg beta-blockade) and surgical intervention is important in reducing the cardiovascular complications of Marfan syndrome. Musculoskeletal symptoms are common, although the pathophysiology is less clear--for example, the correlation between dural ectasia and back pain is uncertain. Symptoms in other systems require specialist review such as ophthalmology assessment of refractive errors and ectopia lentis. Pregnancy is a time of increased cardiovascular risk for women with Marfan syndrome, particularly if the aortic root exceeds 4 cm at the start of pregnancy. High-intensity static exercise should be discouraged although low-moderate intensity dynamic exercise may be beneficial. The diagnosis and management of Marfan syndrome requires a multidisciplinary team approach, in view of its multisystem effects and phenotypic variability.
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Affiliation(s)
- John C S Dean
- Department of Medical Genetics, NHS Grampian, Argyll House, Foresterhill, Aberdeen, AB25 2ZR, UK.
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Iung B, Messika-Zeitoun D, Cachier A, Delahaye F, Baron G, Tornos P, Gohlke-Bärwolf C, Boersma E, Ravaud P, Vahanian A. Actual management of patients with asymptomatic aortic valve disease: how practice fits with guidelines. Am Heart J 2007; 153:696-703. [PMID: 17383314 DOI: 10.1016/j.ahj.2005.12.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2005] [Accepted: 12/24/2005] [Indexed: 10/23/2022]
Abstract
BACKGROUND Intervention is advised in selected asymptomatic patients with aortic valve disease. However, little is known regarding their actual management. METHODS The Euro Heart Survey was designed to evaluate practices. Severe isolated aortic stenosis (AS) was defined by a valve area < or = 0.6 cm2/m2 body surface area or mean gradient > or = 50 mm Hg. Severe aortic regurgitation (AR) was defined by a grade > or = 3/4. Patients were classified as asymptomatic when they were in New York Heart Association class I and were without angina. Decision to operate was analyzed by comparing patient characteristics with the American College of Cardiology/American Heart Association recommendations. RESULTS Of the 5001 patients, 136 had severe, isolated, and asymptomatic aortic valve disease (84 with AS and 52 with AR). Stress testing was performed in only 6 patients (4%). A decision to operate was taken in 45 patients (54%) with AS and 21 (40%) with AR. Indications for surgery were in accordance with the American College of Cardiology/American Heart Association guidelines in 57 patients (68%) with AS and in 41 (83%) with AR. However, the decision to operate was frequently based on class IIb recommendations in patients with AS. Intervention was "overused" in 18 patients with AS (21%) and in 5 (9%) with AR. Intervention was "underused" in 9 patients (11%) with AS and in 4 (8%) with AR. CONCLUSIONS In asymptomatic patients with severe aortic valve disease, a decision to operate is frequently taken; and it is most often in agreement with guidelines, although often based on low-level recommendations.
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Affiliation(s)
- Bernard Iung
- Cardiology Department, Bichat Hospital, AP-HP, Paris, France.
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Kaemmerer H, Oechslin E, Seidel H, Neuhann T, Neuhann IM, Mayer HM, Hess J. Marfan syndrome: what internists and pediatric or adult cardiologists need to know. Expert Rev Cardiovasc Ther 2006; 3:891-909. [PMID: 16181034 DOI: 10.1586/14779072.3.5.891] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Marfan syndrome (MFS) is one of the most frequent connective tissue disorders, showing striking pleiotropism and clinical variability. There is autosomal dominant inheritance with complete penetrance but variable expression. Approximately 25% of MFS patients have no family history of the syndrome and represent sporadic cases due to new mutations. This hazardous condition is often associated with premature cardiovascular death unless surveillance and management are optimized. The fibrillin gene (FBN1) encodes the structure of the connective tissue protein fibrillin. MFS is caused by mutations in the fibrillin gene, located on chromosome 15 at locus 15q21. Fibrillin abnormalities reduce the structural integrity of different body systems, primarily involving the heart valves, blood vessels, lungs, bones, tendons, ligaments, cartilages, eyes, skin, spinal dura and the CNS. Patients with MFS are likely to have too little fibrillin within these structures, resulting in clinically relevant problems. For example, in the aortic wall, deficient fibrillin may trigger progressive aortic ectasia and may result in aortic dissection.
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Affiliation(s)
- Harald Kaemmerer
- Klinik für Kinderkardiologie und angeborene Herzfehler, Deutsches Herzzentrum München, Klinik an der Technischen UniversiteatLazarettstr. 36D-80636 Munich, Germany.
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Gersony DR, McClaughlin MA, Jin Z, Gersony WM. The effect of beta-blocker therapy on clinical outcome in patients with Marfan's syndrome: a meta-analysis. Int J Cardiol 2006; 114:303-8. [PMID: 16831475 DOI: 10.1016/j.ijcard.2005.11.116] [Citation(s) in RCA: 132] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2005] [Revised: 11/18/2005] [Accepted: 11/27/2005] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To assess the effect of beta-blockade therapy on clinical outcome in patients with Marfan's syndrome. BACKGROUND Despite the lack of definitive evidence to support its efficacy, beta-blocker therapy is widely used prophylactically in patients with Marfan's syndrome. METHODS A meta-analysis was instituted, which included studies identified by a systematic review of MEDLINE of peer-reviewed publications and by abstracts from annual scientific meeting. Outcome measures of mortality and major morbidity were compared between patients treated and untreated with beta-blockade therapy. Data was combined according to both a fixed-effects and random-effects model. The endpoints included aortic dissection or rupture, cardiovascular surgery, or death. RESULTS Six studies were included, 5 were non-randomized follow-up studies and 1 was a prospective randomized trial (802 patients). Ninety-six of 433 patients treated with beta-blocker therapy and 74 of 369 untreated patients reached designated endpoints. Utilizing a fixed-effects model, patients treated with beta-blocker therapy were more likely to reach an endpoint (odds ratio=1.50 with 95% CI 1.05-2.16). However, by a random-effects model, the treatment effect failed to reach significance (1.54 with 95% CI 0.99-2.40). CONCLUSIONS On the basis of this meta-analysis, there is no evidence that beta-blockade therapy has clinical benefit in patients with Marfan's syndrome.
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Affiliation(s)
- Deborah R Gersony
- Columbia University Medical Center, 161 Fort Washington Avenue, New York, NY 10032, United States.
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Bradley TJ, Potts JE, Potts MT, DeSouza AM, Sandor GGS. Echocardiographic Doppler assessment of the biophysical properties of the aorta in pediatric patients with the Marfan syndrome. Am J Cardiol 2005; 96:1317-21. [PMID: 16253606 DOI: 10.1016/j.amjcard.2005.06.080] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2005] [Revised: 06/21/2005] [Accepted: 06/21/2005] [Indexed: 11/25/2022]
Abstract
In the Marfan syndrome (MS), aortic root involvement is usually clinically monitored according to the aortic sinus of Valsalva dilation. Using an echocardiographic Doppler method in this cross-sectional study, abnormal biophysical properties of the ascending aorta were found in pediatric patients with MS compared with healthy controls but not consistently in association with the aortic sinus of Valsalva dilation.
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Affiliation(s)
- Timothy J Bradley
- Division of Cardiology, Department of Pediatrics, British Columbia Children's Hospital and The University of British Columbia, Vancouver, British Columbia, Canada.
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Codecasa R, Mariani MA, D'Alfonso A, Nardi C, Grandjean JG. Current indications for elective surgical treatment of dilated ascending aorta: a new formula. J Thorac Cardiovasc Surg 2003; 125:1528-30. [PMID: 12830076 DOI: 10.1016/s0022-5223(03)00059-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Nollen GJ, Groenink M, van der Wall EE, Mulder BJM. Current insights in diagnosis and management of the cardiovascular complications of Marfan's syndrome. Cardiol Young 2002; 12:320-7. [PMID: 12206553 DOI: 10.1017/s1047951100012907] [Citation(s) in RCA: 12] [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
Marfan's syndrome is an inherited disorder of connective tissue, caused by mutations in the fibrillin-1 gene located on chromosome 15. Diagnosis is still based on a combination of major and minor clinical features. Prognosis is mainly determined by the cardiovascular complications. Advances in surgical and medical treatment for these complications have dramatically improved the prognosis of the syndrome.
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Affiliation(s)
- Gijs J Nollen
- Department of Cardiology, Academic Medical Center Amsterdam, The Netherlands
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Affiliation(s)
- John C S Dean
- Department of Medical Genetics, Medical School, Foresterhill, Aberdeen AB25 9ZD,
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