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Thompson NA, Shin S, Kocheril AG, Hsiao-Wecksler ET, Krishnan G. Design and Validation of a Soft Robotic Simulator for Transseptal Puncture Training. IEEE Trans Biomed Eng 2023; 70:3003-3014. [PMID: 37220031 DOI: 10.1109/tbme.2023.3278651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
OBJECTIVE Transseptal puncture (TP) is the technique used to access the left atrium of the heart from the right atrium during cardiac catheterization procedures. Through repetition, electrophysiologists and interventional cardiologists experienced in TP develop manual skills to navigate the transseptal catheter assembly to their target on the fossa ovalis (FO). Cardiology fellows and cardiologists that are new to TP currently train on patients to develop this skill, resulting in increased risk of complications. The goal of this work was to create low-risk training opportunities for new TP operators. METHODS We developed a Soft Active Transseptal Puncture Simulator (SATPS), designed to match the dynamics, static response, and visualization of the heart during TP. The SATPS includes three subsystems: (i) A soft robotic right atrium with pneumatic actuators mimics the dynamics of a beating heart. (ii) A fossa ovalis insert simulates cardiac tissue properties. (iii) A simulated intracardiac echocardiography environment provides live visual feedback. Subsystem performance was verified with benchtop tests. Face and content validity were evaluated by experienced clinicians. RESULTS Subsystems accurately represented atrial volume displacement, tenting and puncture force, and FO deformation. Passive and active actuation states were deemed suitable for simulating different cardiac conditions. Participants rated the SATPS as realistic and useful for training cardiology fellows in TP. CONCLUSION The SATPS can help improve catheterization skills of novice TP operators. SIGNIFICANCE The SATPS could provide novice TP operators the opportunity to improve their TP skills before operating on a patient for the first time, reducing the likelihood of complications.
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Dudkiewicz D, Hołda MK. Interatrial septum as a possible source of thromboembolic events. TRANSLATIONAL RESEARCH IN ANATOMY 2022. [DOI: 10.1016/j.tria.2022.100190] [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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Almendarez M, Alvarez-Velasco R, Pascual I, Alperi A, Moris C, Avanzas P. Transseptal puncture: Review of anatomy, techniques, complications and challenges, a critical view. Int J Cardiol 2022; 351:32-38. [PMID: 35007652 DOI: 10.1016/j.ijcard.2022.01.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 01/05/2022] [Indexed: 11/05/2022]
Abstract
Transseptal puncture (TSP) was initially described to gain access to the left heart for hemodynamic assessment. Continuous evolution from its origins allows interventionists to perform a myriad of procedures that otherwise would be impossible to accomplish. In the recent years, the number of procedures in cardiology that require TSP has grown exponentially. Namely, transcatheter mitral valve repair and replacement, pulmonary vein isolation and left atrium appendage occlusion. In skilled hands, it is a safe and straightforward procedure; however, a lack of knowledge of the materials, anatomy of the interatrial septum and the technique can be met with life-threatening complications. Therefore, it is imperative that interventional cardiologists master this technique to successfully overcome these obstacles and ensure clinical outcomes in patients requiring TSP. The purpose of the following review is to critically analyze the available evidence regarding TSP, provide a step-by-step approach to the technique, the available materials and tips and tricks to overcome difficulties and manage complications.
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Affiliation(s)
- Marcel Almendarez
- Heart Area. Hospital Universitario Central de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain; Research Institute of the Principado de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain
| | - Rut Alvarez-Velasco
- Heart Area. Hospital Universitario Central de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain; Research Institute of the Principado de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain
| | - Isaac Pascual
- Heart Area. Hospital Universitario Central de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain; Research Institute of the Principado de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain; Department of Medicine, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
| | - Alberto Alperi
- Heart Area. Hospital Universitario Central de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain; Research Institute of the Principado de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain
| | - Cesar Moris
- Heart Area. Hospital Universitario Central de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain; Research Institute of the Principado de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain; Department of Medicine, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
| | - Pablo Avanzas
- Heart Area. Hospital Universitario Central de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain; Research Institute of the Principado de Asturias, Avenida de Roma S/N, 33011 Oviedo, Spain; Department of Medicine, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain.
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Morphological Study of Fossa Ovalis in Formalin-Fixed Human Hearts and Its Clinical Importance. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:medicina57111254. [PMID: 34833472 PMCID: PMC8619833 DOI: 10.3390/medicina57111254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 11/17/2022]
Abstract
Background and Objectives: Our study aimed to investigate the gross anatomy aspects of the fossa ovalis (FO) and the presence of some anatomical variation resulting from the incomplete fusion of septum primum and septum secundum, such as an atrial septal pouch (SP) and left atrial septal ridge. Materials and Methods: Thirty-one adult human hearts removed from formalin-fixed specimens were examined to provide information about the morphology of the FO. The organs were free of any gross anatomically visible pathological conditions. Results: The most common variants were the FO located in the inferior part of the interatrial septum (64.51%), circular (61.3%), with a net-like structure (51.62%), prominent limbus (93.55%), and patent foramen ovale (PFO) (25.8%). The right SP was observed in 9.67% of specimens, the left SP was observed in 29.03% of cases, and in 51.61% of cases, a double SP was observed. One sample presented a right SP and a double left SP, and one case showed a triple left SP, which was not reported previously to our knowledge. Conclusions: Knowledge of the interatrial septal anatomy becomes important for interventional cardiologists and should be documented before transeptal puncture.
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Aubry P, Hamidouche F, Alqudwa A, Naoum-Nehme A, Maiga B, Camara N, Manchon E, Poulos N. [Cryptogenic stroke management : where are we ?]. Ann Cardiol Angeiol (Paris) 2021; 70:373-379. [PMID: 34742466 DOI: 10.1016/j.ancard.2021.10.006] [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: 09/20/2021] [Accepted: 10/02/2021] [Indexed: 10/19/2022]
Abstract
Cryptogenic stroke is an old definition that designates an ischemic stroke with no identifiable cause. The term of the embolic stroke of undetermined source was then introduced to identify non-lacunar strokes in whom thromboembolism was the likely mechanism. This subgroup of cryptogenic strokes remains heterogeneous with many potential and possibly associated embolic causes. Covert atrial fibrillation is probably less often involved than initially expected, in contrast to intracranial and extracranial atherosclerosis. The cardiologist should be involved in the search of underlying causes of ischemic stroke by helping the neurologist to identify the most likely diagnosis. Further research is necessary to select populations that may benefit from more effective and individualized treatment.
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Affiliation(s)
- P Aubry
- Service de cardiologie, Centre Hospitalier de Gonesse, 95500 Gonesse; Département de cardiologie, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Bichat-Claude-Bernard, 75018 Paris.
| | - F Hamidouche
- Service de cardiologie, Centre Hospitalier de Gonesse, 95500 Gonesse
| | - A Alqudwa
- Service de cardiologie, Centre Hospitalier de Gonesse, 95500 Gonesse
| | - A Naoum-Nehme
- Service de cardiologie, Centre Hospitalier de Gonesse, 95500 Gonesse
| | - B Maiga
- Service de neurologie, Centre Hospitalier de Gonesse, 95500 Gonesse
| | - N Camara
- Service de neurologie, Centre Hospitalier de Gonesse, 95500 Gonesse
| | - E Manchon
- Service de neurologie, Centre Hospitalier de Gonesse, 95500 Gonesse
| | - N Poulos
- Service de cardiologie, Centre Hospitalier de Gonesse, 95500 Gonesse
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Kishve P, Motwani R. Morphometric study of fossa ovale in human cadaveric hearts: embryological and clinical relevance. Anat Cell Biol 2021; 54:42-50. [PMID: 33691288 PMCID: PMC8017463 DOI: 10.5115/acb.20.286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/19/2020] [Accepted: 12/10/2020] [Indexed: 11/27/2022] Open
Abstract
Atrial septal defect (ASD) is the 5th common congenital abnormality at birth. Secundum atrial defect and patent foramen ovale (PFO) are the most common atrial septal defects. In this setting, the anatomical functional characterization of the interatrial septum seems to be of paramount importance not only for device selection but also for therapeutic intervention. This study was carried out to evaluate the morphometric parameters of fossa ovale (FOv) in the human adult cadaveric hearts. For this study, 50 normal cadaveric human hearts available in the department of Anatomy over the period of 3 years were used where size, position, shape, nature of the FOv was noted. The size of the fossa was measured and prominence, location, and extent of the limbus fossa ovalis were observed. The probe patency of foramen ovale (FO) was confirmed. In most specimens, the fossa was oval (80%), the average transverse diameter was 24.21 mm, and the vertical diameter 26.84 mm. In 84% rim was raised. In 56% of cases, the fossa was present at the middle of the interatrial septum. The patency of foramen was observed in 3%. The findings of the present study provide pertinent information on the morphology of the FOv, which may be useful for device selection in treating ASDs and PFO. This would definitely help the clinicians in a deeper understanding of the region as very few cadaveric studies are available in the literature at present.
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Affiliation(s)
- Prajakta Kishve
- Department of Anatomy, ESIC Medical College & Hospital, Hyderabad, India
| | - Rohini Motwani
- Department of Anatomy, All India Institute of Medical Sciences, Bibinagar, Hyderabad, India
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Honnegowda T, Alghamdi M. A clinical relevance of fossa ovalis and patent foramen ovale: A morphological study of human heart. JOURNAL OF THE PRACTICE OF CARDIOVASCULAR SCIENCES 2021. [DOI: 10.4103/jpcs.jpcs_60_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Vernemmen I, Vera L, Van Steenkiste G, Deserranno B, Muylle S, Decloedt A, van Loon G. Right atrial-related structures in horses of interest during electrophysiological studies. Equine Vet J 2020; 53:1210-1217. [PMID: 33368591 DOI: 10.1111/evj.13413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/16/2020] [Accepted: 12/17/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND Arrhythmias are common in horses, but catheter-based minimally invasive electrophysiological studies and therapeutic interventions have been poorly explored in equine medicine, partly due to the lack of detailed anatomical knowledge of the equine heart. OBJECTIVES To describe the dimensions and anatomical features of some electrophysiologically important landmarks of the right atrium in detail and assess their correlation with bodyweight and aortic diameter. STUDY DESIGN Ex vivo cadaveric study. METHODS Twenty-one hearts of Warmblood horses, subjected to euthanasia for noncardiovascular reasons, were examined post-mortem. The dimensions and anatomical features of the coronary sinus, the great cardiac vein and the oval fossa were recorded. Spearman's Rho correlation coefficients were calculated for correlations between the quantitative parameters and bodyweight and aortic diameter. RESULTS Median dimensions for coronary sinus, great cardiac vein and oval fossa were obtained. A Thebesian valve, partially covering the ostium of the coronary sinus, was present in 9 of the 21 hearts. A median of 6.5 (range 4-9) valves were present in the great cardiac vein. Several parameters, among which the dimensions of the oval fossa and the length of the great cardiac vein, were significantly positively correlated with bodyweight and aortic diameter. MAIN LIMITATIONS Measurements do not consider the dynamic changes during the cardiac cycle as measurements were performed ex vivo. All specimens were retrieved from Warmblood horses, therefore measurements might not apply to other breeds. CONCLUSIONS This study delivers a detailed description of important right atrial-related structures, necessary for the development of minimally invasive intracardiac procedures in horses. Adequate imaging techniques will have to be explored in order to guide these procedures.
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Affiliation(s)
- Ingrid Vernemmen
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Lisse Vera
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Glenn Van Steenkiste
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Bram Deserranno
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Sofie Muylle
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Annelies Decloedt
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Gunther van Loon
- Equine Cardioteam Ghent University, Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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Bezek LB, Cauchi MP, De Vita R, Foerst JR, Williams CB. 3D printing tissue-mimicking materials for realistic transseptal puncture models. J Mech Behav Biomed Mater 2020; 110:103971. [PMID: 32763836 DOI: 10.1016/j.jmbbm.2020.103971] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/23/2020] [Accepted: 06/29/2020] [Indexed: 01/09/2023]
Abstract
Applications of additive manufacturing (commonly referred to as 3D printing) in direct fabrication of models for pre-surgical planning, functional testing, and medical training are on the rise. However, one current limitation to the accuracy of models for cardiovascular procedural training is a lack of printable materials that accurately mimic human tissue. Most of the available elastomeric materials lack mechanical properties representative of human tissues. To address the gap, the authors explore the multi-material capability of material jetting additive manufacturing to combine non-curing and photo-curing inks to achieve material properties that more closely replicate human tissues. The authors explore the impact of relative material concentration on tissue-relevant properties from puncture and tensile testing under submerged conditions. Further, the authors demonstrate the ability to mimic the mechanical properties of the fossa ovalis, which proves beneficial for accurately simulating transseptal punctures. A fossa ovalis mimic was printed and assembled within a full patient-specific heart model for validation, where it exhibited accuracy in both mechanical properties and geometry. The explored material combination provides the opportunity to fabricate future medical models that are more realistic and better suited for pre-surgical planning and medical student training. This will ultimately guide safer, more efficient practices.
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Affiliation(s)
- Lindsey B Bezek
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA, 24061, USA
| | | | - Raffaella De Vita
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Jason R Foerst
- Section of Interventional and Structural Cardiology, Virginia Tech Carilion School of Medicine, Roanoke, VA, 24016, USA
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Acute Limb Ischemia Secondary to Patent Foramen Ovale–Mediated Paradoxical Embolism: A Case Report and Systematic Review of the Literature. Ann Vasc Surg 2020; 66:668.e5-668.e10. [DOI: 10.1016/j.avsg.2019.12.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 12/23/2019] [Accepted: 12/28/2019] [Indexed: 12/14/2022]
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Salghetti F, Sieira J, Chierchia GB, Curnis A, de Asmundis C. Recognizing and reacting to complications of trans-septal puncture. Expert Rev Cardiovasc Ther 2017; 15:905-912. [PMID: 29161923 DOI: 10.1080/14779072.2017.1408411] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INTRODUCTION The transseptal puncture (TSP) enables access to the left heart, through the fossa ovalis (FO), both in electrophysiology and in cardiac interventional procedures. TSP is usually safe in experienced hands. Sometimes TSP can be technically demanding and carries the risk of severe complications in approximately 1%. While performing a TSP, every effort should be taken in order to avoid complications. In the event of complications, prompt recognition and reaction are essential and a combined 'heart-team' management may be the most effective approach. Areas covered: Main TSP-related complications are cardiac tamponade, aortic root puncture, embolic stroke, transient ST elevation of inferior leads and iatrogenic atrial septal defect. A challenging TSP may be expected in presence of difficult IAS-FO anatomies, previous TSP, IAS occluder device and previous IAS surgical repair. Use of echo imaging and special needles (ie., radiofrequency needle and J-shaped guidewire) may avoid TSP-related complications in difficult settings. Expert commentary: Some tools are available to help minimize the risks of TSP. However, their availability might be limited. To increase safety of TSP, an adequate training of physicians, identification of patients in whom it might be difficult and a prompt recognition of complications seem to be the most important background.
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Affiliation(s)
- Francesca Salghetti
- a Heart Rhythm Management Centre, Postgraduate course in Cardiac Electrophysiology and Pacing , Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel , Brussels , Belgium.,b Division of Cardiology , Spedali Civili Hospital, Università degli Studi di Brescia , Brescia , Italy
| | - Juan Sieira
- a Heart Rhythm Management Centre, Postgraduate course in Cardiac Electrophysiology and Pacing , Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel , Brussels , Belgium
| | - Gian-Battista Chierchia
- a Heart Rhythm Management Centre, Postgraduate course in Cardiac Electrophysiology and Pacing , Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel , Brussels , Belgium
| | - Antonio Curnis
- b Division of Cardiology , Spedali Civili Hospital, Università degli Studi di Brescia , Brescia , Italy
| | - Carlo de Asmundis
- a Heart Rhythm Management Centre, Postgraduate course in Cardiac Electrophysiology and Pacing , Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel , Brussels , Belgium
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Abstract
Paradoxical embolism should be suspected in front of a clinical phenomenon of thromboembolism associated with an anatomical right-to-left shunt. Others potential cardiac sources of thromboembolism must be ruled out. Strokes constitute the most frequent clinical manifestations of paradoxical embolism. Right-to-left left shunts are in connection with intracardiac defects (atrial septal defect and patent foramen ovale) or pulmonary arteriovenous malformations. The probability that a discovered PFO is stroke-related can be evaluated by a score. Therapeutic approaches for secondary prevention of recurrent stroke include antithrombotic and/or percutaneous treatments. The choice strategy begins to be clearer with the recent results of randomized controlled studies.
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Affiliation(s)
- P Aubry
- Département de cardiologie, groupe hospitalier Bichat-Claude-Bernard, Assistance publique-Hôpitaux de Paris, 46, rue Henri-Huchard, 75018 Paris, France; Service de cardiologie, centre hospitalier de Gonesse, 95500 Gonesse, France.
| | - H Demian
- Service de cardiologie, centre hospitalier de Gonesse, 95500 Gonesse, France
| | - E Brochet
- Département de cardiologie, groupe hospitalier Bichat-Claude-Bernard, Assistance publique-Hôpitaux de Paris, 46, rue Henri-Huchard, 75018 Paris, France
| | - J-M Juliard
- Département de cardiologie, groupe hospitalier Bichat-Claude-Bernard, Assistance publique-Hôpitaux de Paris, 46, rue Henri-Huchard, 75018 Paris, France
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New Insights Into an Old Arrhythmia. JACC Clin Electrophysiol 2017; 3:971-986. [DOI: 10.1016/j.jacep.2017.01.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 01/04/2017] [Accepted: 01/04/2017] [Indexed: 11/19/2022]
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O'Brien B, Zafar H, De Freitas S, Sharif F. Transseptal puncture - Review of anatomy, techniques, complications and challenges. Int J Cardiol 2017; 233:12-22. [PMID: 28202256 DOI: 10.1016/j.ijcard.2017.02.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 12/22/2016] [Accepted: 02/01/2017] [Indexed: 12/17/2022]
Abstract
In recent years, the transseptal puncture approach has enabled passage of increasingly large and complex devices into the left atrium. Traditional tools remain effective in creating and dilating the initial puncture, with an acceptable safety profile. Even for skilled operators, the procedure is technically demanding and requires sound understanding of atrial anatomy. Intracardiac echocardiography is useful in cases of previous septal repair, poorly defined fossa ovalis anatomy or when considering patent foramen ovale portal crossing. Iatrogenic atrial septal defect (iASD) is the most commonly encountered long-term complication and there is increasing evidence that larger devices are leading to symptomatic defects. The size of the sheath crossing the septum is the strongest predictor of iASD formation but other factors such as longer procedure times, significant catheter manipulation and high pulmonary pressures also contribute. Transcatheter mitral valve repair involves the use of large 22 Fr catheters which carry alarmingly high rates of defect persistence with precipitation of symptoms and possible influence on mortality. Long-term follow up data, particularly beyond the 12-month period are lacking and resultantly, evidence to guide management is sparse. Refinements of conventional instruments, as well as innovations to puncture the septum without mechanical pressure, herald a progressively safer future for the transseptal technique.
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Affiliation(s)
- Barry O'Brien
- Biomedical Engineering, School of Engineering & Informatics, National University of Ireland (NUI), Galway, Ireland
| | - Haroon Zafar
- Cardiovascular Research Centre Galway, School of Medicine, NUI, Galway, Ireland; School of Medicine, NUI, Galway, Ireland.
| | - Simon De Freitas
- Cardiovascular Research Centre Galway, School of Medicine, NUI, Galway, Ireland; School of Medicine, NUI, Galway, Ireland
| | - Faisal Sharif
- Cardiovascular Research Centre Galway, School of Medicine, NUI, Galway, Ireland; School of Medicine, NUI, Galway, Ireland; Department of Cardiology, University Hospital Galway, Ireland; BioInnovate, Ireland; CÚRAM, SFI Centre for Research in Medical Devices, Galway, Ireland
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Barik R. The three-dimensional fossa ovalis. Indian Heart J 2016; 68:211-2. [PMID: 27133343 DOI: 10.1016/j.ihj.2016.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 02/02/2016] [Indexed: 11/25/2022] Open
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