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Koyuncu A, Yildiz C, Oflar E, Mavi B, Ertugrul AS, Ocal L, Gürsoy MO, Kahveci G. Evaluation of the prognostic value of papillary muscle-free strain in patients with hypertrophic cardiomyopathy. Echocardiography 2024; 41:e15882. [PMID: 38979721 DOI: 10.1111/echo.15882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/10/2024] [Accepted: 06/21/2024] [Indexed: 07/10/2024] Open
Abstract
BACKGROUND The prognosis of hypertrophic cardiomyopathy (HCM) varies from mild disease with a normal life expectancy to heart failure and sudden cardiac death (SCD). The identification of patients who are at high risk for SCD remains challenging. AIMS In this study, we evaluated the prognostic value of papillary muscle-free strain in HCM patients. METHODS AND RESULTS Seventy-nine patients with a diagnosis of HCM were included in this study. Patients were divided into low/intermediate-risk (n = 57) and high-risk (n = 22) groups. Two-dimensional (2-D) echocardiography and strain imaging were performed for each patient. The mean age of the study population was 53.85 ± 15.88 years; 47 (59.5%) of them were male. During a mean follow-up duration of 74.45 ± 17.03 months, 12 patients died. A comparison of the low-intermediate and high-SCD risk groups revealed that patients in the high-SCD risk group had greater maximal wall thickness, interventricular septum thickness, posterior wall thickness, and left ventricular mass index (LVMI) and lower (less negative) global longitudinal, anterolateral papillary muscle (ALPM) and posteromedial papillary muscle (PMPM) free strain. Additionally, a history of syncope and ICD implantation were found to be more common in patients with high SCD risk scores. The SCD risk score was positively correlated with the global longitudinal strain, ALPM-free strain, and PMPM-free strain (r = .528, r = .658, and r = .600, respectively; p < .001 for all). Our results showed that the LVMI, presence of syncope, global longitudinal strain, and ALPM-free strain were predictors of death. CONCLUSIONS Decreased papillary muscle-free strain values might have prognostic value in patients with HCM.
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Affiliation(s)
- Atilla Koyuncu
- Department of Cardiology, Bakırkoy Dr Sadi Konuk Education and Research Hospital, Istanbul, Turkey
| | - Cennet Yildiz
- Department of Cardiology, Bakırkoy Dr Sadi Konuk Education and Research Hospital, Istanbul, Turkey
| | - Ersan Oflar
- Department of Cardiology, Bakırkoy Dr Sadi Konuk Education and Research Hospital, Istanbul, Turkey
| | - Busra Mavi
- Department of Cardiology, Bakırkoy Dr Sadi Konuk Education and Research Hospital, Istanbul, Turkey
| | - Abdulcelil Sait Ertugrul
- Department of Cardiology, Bakırkoy Dr Sadi Konuk Education and Research Hospital, Istanbul, Turkey
| | - Lutfi Ocal
- Department of Cardiology, Kosuyolu Education and Research Hospital, Istanbul, Turkey
| | - Mustafa Ozan Gürsoy
- Department of Cardiology, Izmir Ataturk Education and Research Hospital, Izmir, Turkey
| | - Gokhan Kahveci
- Department of Cardiology, Istinye University, Liv Hospital, Istanbul, Turkey
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de Villarreal-Soto JE, Oteo-Domínguez JF, Martínez-López D, Ríos-Rosado EC, Vera-Puente B, Olivo-Soto JC, Arízaga-Arce F, García-Pavía P, Ospina Mosquera VM, Villar García S, García Suárez J, Cavero MÁ, Martín-López CE, Forteza-Gil A. Extended septal myectomy versus alcohol septal ablation: clinical results at a national referral centre. INTERDISCIPLINARY CARDIOVASCULAR AND THORACIC SURGERY 2024; 38:ivae058. [PMID: 38569884 DOI: 10.1093/icvts/ivae058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/06/2024] [Accepted: 04/02/2024] [Indexed: 04/05/2024]
Abstract
OBJECTIVES Extended septal myectomy and alcohol septal ablation are 2 invasive treatments for hypertrophic obstructive cardiomyopathy. Our goal was to compare which of these techniques achieved a higher reduction in gradients, improvement in New York Heart Association (NYHA) functional class and reduction in medical treatment. METHODS It is a single-centre observational and retrospective analysis. We used multivariable regression analyses to assess the association of ablation/myectomy with different outcomes. The odds ratio or coefficient along with the 95% confidence interval was estimated according to the group and adjusted for the corresponding preprocedural variables and EuroSCORE II. RESULTS A total of 78 patients underwent septal myectomy, and 25 patients underwent alcohol septal ablation. Basal and Valsalva gradients after myectomy were reduced to a higher degree in comparison to ablation: 21.0 mmHg [P < 0.001, 95% confidence interval -30.7; -11.3], and 34.3 mmHg (P < 0.001, -49.1; -19.5) respectively. Those patients who received a myectomy had a lower probability of having moderate mitral regurgitation (odds ratio = 0.18, P = 0.054). Patients after septal myectomy were more likely to be NYHA functional class I (80.4%), whereas patients after ablation were more likely to be NYHA functional class III (48%). Both groups continued with beta-blocker therapy, but disopyramide could be discontinued after the myectomy in more cases (20%-36% vs 59%-1.3%; P < 0.001), and there was a tendency to discontinue calcium channel blockers (48%-16% vs 15.4-3.8%; P = 0.054). CONCLUSIONS After adjustment using preprocedural gradients and EuroSCORE II, myectomy achieves greater reduction in left ventricular outflow tract gradients compared to septal ablation.
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Affiliation(s)
| | | | - Daniel Martínez-López
- Cardiac Surgery, Puerta de Hierro Majadahonda University Hospital, Majadahonda, Spain
| | | | - Beatriz Vera-Puente
- Cardiac Surgery, Puerta de Hierro Majadahonda University Hospital, Majadahonda, Spain
| | - Jean Carlo Olivo-Soto
- Cardiac Surgery, Puerta de Hierro Majadahonda University Hospital, Majadahonda, Spain
| | - Fernando Arízaga-Arce
- Cardiac Surgery, Puerta de Hierro Majadahonda University Hospital, Majadahonda, Spain
| | - Pablo García-Pavía
- Cardiology Department, Puerta de Hierro Majadahonda University Hospital, Majadahonda, Spain
| | | | - Susana Villar García
- Cardiac Surgery, Puerta de Hierro Majadahonda University Hospital, Majadahonda, Spain
| | - Jessica García Suárez
- Anesthesia Department, Puerta de Hierro Majadahonda University Hospital, Majadahonda, Spain
| | - Miguel Ángel Cavero
- Cardiology Department, Puerta de Hierro Majadahonda University Hospital, Majadahonda, Spain
| | | | - Alberto Forteza-Gil
- Cardiac Surgery, Puerta de Hierro Majadahonda University Hospital, Majadahonda, Spain
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Ayati A, Khoshfetrat M, Davoodi S, Ahmadi Tafti SH, Arefizadeh R. Comparing long-term outcomes of septal myectomy and mitral valve replacement in hypertrophic cardiomyopathy patients: A retrospective cohort study in Iran. Health Sci Rep 2024; 7:e2045. [PMID: 38629112 PMCID: PMC11019255 DOI: 10.1002/hsr2.2045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 03/21/2024] [Accepted: 03/24/2024] [Indexed: 04/19/2024] Open
Abstract
Background Hypertrophic cardiomyopathy (HCM) affects millions of individuals worldwide. In severe cases, it can cause life-threatening conditions such as left ventricular outflow tract (LVOT) obstruction, mitral regurgitation (MR), and sudden cardiac death, making surgical treatment necessary. This study aimed to report the long-term outcomes of HCM patients undergoing septal myectomy or mitral valve replacement (MVR) and compare the results between different types of surgeries. Methods This was a retrospective cohort study on HCM patients who underwent surgical treatment in an Iranian referral center between 2005 and 2021. Patients were divided into three groups according to the type of surgery received: septal myectomy, MVR, or a combination of both surgeries. Patient characteristics, surgical and echocardiographic features, and in-hospital and long-term outcomes were reported and compared between the three groups. Results A total of 102 patients with an average age of 53.3 ± 16.9 were included. Twenty-six patients had septal myectomy, 23 had MVR, and 53 had combined septal myectomy and MVR surgery. All surgeries were associated with a significant reduction in interventricular septum thickness and LVOT gradients. After a median of 6.8-year follow-up time, patients with an isolated septal myectomy had significantly lower mortality and major adverse cardiac and cerebrovascular events rates than the other groups. Conclusion Isolated septal myectomy showed better long-term survival rates and can correct HCM-related MR, while MVR should be preserved only for intrinsic valve defects. More extensive studies are needed to confirm these findings and achieve a comprehensive guideline on surgical treatment of HCM.
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Affiliation(s)
- Aryan Ayati
- Trauma and Surgery Research CenterAja University of Medical SciencesTehranIran
- Tehran Heart Center, Cardiovascular Diseases Research InstituteTehran University of Medical SciencesTehranIran
| | - Mehran Khoshfetrat
- Trauma and Surgery Research CenterAja University of Medical SciencesTehranIran
| | - Saeed Davoodi
- Tehran Heart Center, Cardiovascular Diseases Research InstituteTehran University of Medical SciencesTehranIran
| | - Seyed Hossein Ahmadi Tafti
- Tehran Heart Center, Cardiovascular Diseases Research InstituteTehran University of Medical SciencesTehranIran
| | - Reza Arefizadeh
- Trauma and Surgery Research CenterAja University of Medical SciencesTehranIran
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Dorsey M, James L, Shrivastava S, Loulmet D, Grossi EA. Subvalvular techniques enhanced with endoscopic robotic mitral valve repair. JTCVS Tech 2023; 22:23-27. [PMID: 38152165 PMCID: PMC10750495 DOI: 10.1016/j.xjtc.2023.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/15/2023] [Accepted: 08/28/2023] [Indexed: 12/29/2023] Open
Abstract
Objective Totally endoscopic intracardiac robotic surgery is generally limited to uncomplicated mitral valve surgery. With experience, our team has developed a more aggressive approach to robotic cardiac surgery that allows for repair of a broad spectrum of mitral valve pathologies. We report complex subvalvular procedural advancements associated with this approach secondary to enhanced team experience and capabilities. Methods All robotic mitral procedures performed by a 2-surgeon team in a quaternary care medical center from July 2011 to May 2022 were reviewed. Natural language-processing techniques were used to analyze operative reports for subvalvular repair techniques. Complex subvalvular techniques included papillary muscle repositioning, division of secondary anterior leaflet chordae, septal myomectomy, division of aberrant left ventricular muscle band attachments, and left ventricular patch reconstruction. The surgical experience was divided into 2 periods: early robotic experience (pre-2018) versus late (2018 onwards). Baseline demographics, outcomes, and subvalvular techniques were analyzed and compared. Results A total of 1287 intracardiac robotic operations were performed by a 2-surgeon team. Thirty-day mortality was 0.6% (8/1287). Mitral valve repair was performed in 1024 patients. The mean age was 61 years (range, 18-90 years), and 15% were >75 years old; 29 patients (2.8%) had previously undergone cardiac surgery. There was a significant increase with experience in the application of advanced subvalvular techniques between the early versus late period (52.3% [268/512] vs 74.2% [380/512] (P < .001)). Conclusions An experienced 2-surgeon team can perform progressively more complex robotic subvalvular repair techniques. These subvalvular techniques are a surrogate for team proficiency and capabilities.
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Affiliation(s)
- Michael Dorsey
- Department of Cardiothoracic Surgery, NYU Langone Medical Center, New York, NY
| | - Les James
- Department of Cardiothoracic Surgery, NYU Langone Medical Center, New York, NY
| | | | - Didier Loulmet
- Department of Cardiothoracic Surgery, NYU Langone Medical Center, New York, NY
| | - Eugene A. Grossi
- Department of Cardiothoracic Surgery, NYU Langone Medical Center, New York, NY
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Alyaydin E, Vogel JK, Luedike P, Rassaf T, Jánosi RA, Papathanasiou M. Sex-Related Differences among Adults with Hypertrophic Obstructive Cardiomyopathy Undergoing Transcoronary Ablation of Septal Hypertrophy. J Clin Med 2023; 12:jcm12083024. [PMID: 37109359 PMCID: PMC10145340 DOI: 10.3390/jcm12083024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/15/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023] Open
Abstract
(1) Background: The transcoronary ablation of septal hypertrophy (TASH) is an established therapy for hypertrophic obstructive cardiomyopathy (HOCM). Previous studies on this topic are characterised by a consistent male predominance and show a worse prognosis in females. (2) Methods: This study is a retrospective analysis of all TASH procedures conducted between 2006 and 2021 at a tertiary academic centre. A solution of 75 µm microspheres (Embozene®, Boston Scientific, Marlborough, MA, USA) was used as an embolising agent. The outcomes of interest were left ventricular outflow tract (LVOT) gradient reduction and symptom improvement among males vs. that among females. Secondarily, we analysed the sex-related differences in procedural safety outcomes and mortality. (3) Results: The study population consisted of 76 patients, with a median age of 61 years. Females comprised 57% of the cohort. We observed no sex-related differences in the baseline LVOT gradients at rest or under provocation (p = 0.560 and p = 0.208, respectively). Females were significantly older at the time of the procedure (p < 0.001), had lower tricuspid annular systolic excursion (TAPSE) (p = 0.009), presented a worse clinical status according to the NYHA functional classification (for NYHA ≥ 3, p < 0.001), and were more often on diuretics (p < 0.001). We did not observe sex-related differences in absolute gradient reduction at rest (p = 0.147) and under provocation (p = 0.709). There was a reduction in the NYHA class by a median value of 1 (p = 0.636) at follow-up for both sexes. Postprocedural access site complications were documented in four cases (two of which concerned females), and complete atrioventricular block was noted in five patients (three of which concerned females). The 10-year survival rates were comparable between the sexes (85% in females and 88% in males). The female sex was not associated with enhanced mortality according to multivariate analysis after adjusting for the confounding variables (HR 0.94; 95% CI 0.376-2.350; p = 0.895), but we observed age-related differences in long-term mortality (HR 1.035; 95% CI 1.007-1.063; p = 0.015). (4) Conclusions: TASH is safe and effective in both sexes, irrespective of their clinical differences. Women present at an advanced age and with more severe symptoms. An advanced age at the time of the intervention is an independent predictor of mortality.
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Affiliation(s)
- Emyal Alyaydin
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, University Hospital Essen, Hufelanstrasse 55, 45147 Essen, Germany
| | - Julia Kirsten Vogel
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, University Hospital Essen, Hufelanstrasse 55, 45147 Essen, Germany
| | - Peter Luedike
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, University Hospital Essen, Hufelanstrasse 55, 45147 Essen, Germany
| | - Tienush Rassaf
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, University Hospital Essen, Hufelanstrasse 55, 45147 Essen, Germany
| | - Rolf Alexander Jánosi
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, University Hospital Essen, Hufelanstrasse 55, 45147 Essen, Germany
| | - Maria Papathanasiou
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, University Hospital Essen, Hufelanstrasse 55, 45147 Essen, Germany
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Triple Threat: Significant Concomitant Aortic Stenosis, Mitral Stenosis, and Systolic Anterior Motion of the Mitral Valve Causing Left Ventricular Outflow Tract Obstruction in Cardiac Surgical Patients. Case Rep Anesthesiol 2023; 2023:9995115. [PMID: 36968008 PMCID: PMC10038731 DOI: 10.1155/2023/9995115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/16/2023] [Accepted: 02/25/2023] [Indexed: 03/19/2023] Open
Abstract
Systolic anterior motion (SAM) describes a pathologic condition of the mitral valve in which the anterior leaflet is displaced anteriorly, resulting in a narrowed left ventricular outflow tract (LVOT). The implications of SAM may range in severity from clinically insignificant disease to severe LVOT obstruction resulting in hemodynamic collapse. While SAM is typically observed in patients with hypertrophic cardiomyopathy or following mitral valve repair, it may be seen in any setting in which the anatomy and function of the left ventricle has been altered. Here we discuss two patients who presented for aortic and mitral valve replacements for concomitant aortic and mitral stenosis. These cases were further complicated by the preoperative diagnosis of SAM in addition to the preexisting valvular lesions, further increasing the risk of sudden hemodynamic collapse and cardiac arrest.
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Tao J, Duan F, Long J, Meng Q, Zhang B, Zhu Z, Wang H. The Role of the Submitral Apparatus in Hypertrophic Obstructive Cardiomyopathy. J Am Soc Echocardiogr 2023; 36:133-145. [PMID: 36191671 DOI: 10.1016/j.echo.2022.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/14/2022] [Accepted: 09/25/2022] [Indexed: 02/06/2023]
Abstract
Hypertrophic cardiomyopathy (HCM) is the most common genetic cardiovascular disease, is characterized by unexplained hypertrophy of any myocardial segment, and has a prevalence of 0.2% to 0.5% among the general population. As one of the phenotypes of hypertrophic cardiomyopathy, left ventricular outflow tract obstruction (LVOTO) is associated with high morbidity and mortality, including cardiac death. The integration of various factors, including septal hypertrophy, malformation of the mitral valve apparatus, and an anomalous mitral subvalvular apparatus, may contribute to the occurrence of LVOTO. Previous studies have thoroughly discussed the role of the mitral valve in the mechanisms of systolic anterior motion and LVOTO. Recent studies have shown the importance of determining the potential mechanism of the submitral apparatus in inducing systolic anterior motion and LVOTO. The authors review recent advances in knowledge regarding the submitral apparatus of patients with hypertrophic cardiomyopathy.
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Affiliation(s)
- Jia Tao
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fujian Duan
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jili Long
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qinglong Meng
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bing Zhang
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhenhui Zhu
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hao Wang
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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Yang C, Xu H, Qiao S, Jia R, Jin Z, Yuan J. Papillary and Trabecular Muscles Have Substantial Impact on Quantification of Left Ventricle in Patients with Hypertrophic Obstructive Cardiomyopathy. Diagnostics (Basel) 2022; 12:diagnostics12082029. [PMID: 36010378 PMCID: PMC9407152 DOI: 10.3390/diagnostics12082029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/11/2022] [Accepted: 08/18/2022] [Indexed: 12/03/2022] Open
Abstract
Patients with obstructive hypertrophic cardiomyopathy (HOCM) have large papillary and trabecular muscles (PTMs), which are myocardial tissue. PTMs are usually excluded from the myocardium and included in the left ventricular (LV) cavity when determining LV mass (LVM) and volumes using cardiac magnetic resonance (CMR). This conventional method may result in large distortion of LVM and other indices. We investigated 74 patients with HOCM undergoing CMR imaging. LV short-axis cine images were obtained. LV contours were drawn using two different methods: (1) the conventional method, where PTMs were included in the LV cavity; and (2) the mask method, which includes the TPMs in the LV myocardium. The LV end-diastolic volume (LV-EDV), LV end-systolic volume (LV-ESV), LV ejection fraction (LVEF), and the LVM were then calculated. Fasting NT-proBNP and CK-MB levels were measured with ELISA. In patients with HOCM, mass of PTMs (MOPTM) was 47.9 ± 18.7 g, which represented 26.9% of total LVM. Inclusion of PTMs with the mask method resulted in significantly greater LVM and LVM index (both p < 0.0001) in comparison with those measured with the conventional method. In addition, the mask method produced a significant decrease in LV-EDV and LV-ESV. LVEF was significantly increased with the mask method (64.3 ± 7.9% vs. 77.2 ± 7.1%, p < 0.0001). MOPTM was positively correlated with BMI, septal wall thickness, LVM, LV-EDV, and LV-ESV. LVEF was inversely correlated with MOPTM. In addition, MOPTM correlated positively with NT-proBNP (r = 0.265, p = 0.039) and CK-MB (r = 0.356, p = 0.002). In conclusion, inclusion of PTMs in the myocardium has a substantial impact on quantification of the LVM, LV-EDV, LV-ESV, and LVEF in patients with HOCM. The effects of the PTMs in women was greater than that in men. Furthermore, the MOPTM was positively associated with NT-proBNP and CK-MB. The PTMs might be included in the myocardium when measuring the LV volumes and mass of patients with HOCM. At present, the clinical and prognostic meaning and relevance of the PTMs is not clear and should be further studied.
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Affiliation(s)
- Chengzhi Yang
- Department of Cardiology and Macrovascular Diseases, Beijing Tiantan Hospital, Capital Medical University, No. 119 South Fourth Ring West Road, Fengtai District, Beijing 100070, China
| | - Haobo Xu
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Shubin Qiao
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Ruofei Jia
- Department of Cardiology and Macrovascular Diseases, Beijing Tiantan Hospital, Capital Medical University, No. 119 South Fourth Ring West Road, Fengtai District, Beijing 100070, China
| | - Zening Jin
- Department of Cardiology and Macrovascular Diseases, Beijing Tiantan Hospital, Capital Medical University, No. 119 South Fourth Ring West Road, Fengtai District, Beijing 100070, China
- Correspondence: (Z.J.); (J.Y.)
| | - Jiansong Yuan
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
- Correspondence: (Z.J.); (J.Y.)
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Special Issue “New Perspectives in Cardiovascular Surgery”. J Clin Med 2022; 11:jcm11154535. [PMID: 35956150 PMCID: PMC9369964 DOI: 10.3390/jcm11154535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 02/01/2023] Open
Abstract
In recent decades, cardiovascular surgery has been making great strides in the field of medicine [...]
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Usui A, Mutsuga M. Surgical Management for Systolic Anterior Motion (SAM) of the Mitral Valve in Obstructive Hypertrophic Myopathy. Ann Thorac Cardiovasc Surg 2022; 28:239-248. [PMID: 35851569 PMCID: PMC9433892 DOI: 10.5761/atcs.ra.22-00103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In patients with obstructive hypertrophic cardiomyopathy, left ventricular outflow tract (LVOT) obstruction can be created by the hypertrophic interventricular septum (IVS) as well as systolic anterior motion (SAM) of the anterior mitral leaflet (AML). Sufficient septal myectomy is a fundamental surgical technique to treat LVOT obstruction, however, direct surgical management for SAM is another key aspect. Besides the hypertrophic IVS, mitral valve, subvalvular apparatus, and papillary muscle may play important role for SAM and several surgical techniques have been proposed to treat SAM in literature. In this review, each surgical technique is classified by the anatomical structure on which the surgical procedure is applied. The AML is the main surgical site and is applied with plication (vertical plication, resection–plication–release strategy), extension (the AML extension, transverse incision of the AML), sutured (edge-to-edge repair, anterior leaflet retention plasty), or traction (floating stitch, papillary muscle-to-anterior annulus stitches, paradoxical stitches, transposition of a directed chorda tendinea to the AML). Height reduction of the posterior mitral valve leaflet and papillary muscle reorientation are other techniques. We should understand theoretical aspects of each technique on correction of anatomical and functional abnormalities of the structure and should apply them under proper indication.
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Affiliation(s)
- Akihiko Usui
- Department of Cardiovascular Surgery, Fujita Health University Okazaki Medical Center, Okazaki, Aichi, Japan
| | - Masato Mutsuga
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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Grau JB, Fortier JH. The mitral valve and its contribution to the generation of left ventricular outflow tract obstruction in hypertrophic cardiomyopathy: Considerations for surgeons. CIRUGIA CARDIOVASCULAR 2022. [DOI: 10.1016/j.circv.2022.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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