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Beer D, Vijayaraman P. Current role of Conduction System Pacing in Patients Requiring Permanent Pacing. Korean Circ J 2024; 54:54.e52. [PMID: 38859643 DOI: 10.4070/kcj.2024.0113] [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: 03/28/2024] [Accepted: 04/11/2024] [Indexed: 06/12/2024] Open
Abstract
His bundle pacing (HBP) and left bundle branch pacing (LBBP) are novel methods of pacing directly pacing the cardiac conduction system. HBP while developed more than two decades ago, only recently moved into the clinical mainstream. In contrast to conventional cardiac pacing, conduction system pacing including HBP and LBBP utilizes the native electrical system of the heart to rapidly disseminate the electrical impulse and generate a more synchronous ventricular contraction. Widespread adoption of conduction system pacing has resulted in a wealth of observational data, registries, and some early randomized controlled clinical trials. While much remains to be learned about conduction system pacing and its role in electrophysiology, data available thus far is very promising. In this review of conduction system pacing, the authors review the emergence of conduction system pacing and its contemporary role in patients requiring permanent cardiac pacing.
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Shanthini S, Suma HY. Morphological Study of the Thebesian Valve in Fresh Autopsied Adult Human Hearts. Cureus 2023; 15:e36534. [PMID: 37090388 PMCID: PMC10121213 DOI: 10.7759/cureus.36534] [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] [Accepted: 03/21/2023] [Indexed: 04/25/2023] Open
Abstract
Background The coronary sinus (CS) and its tributaries have been used to perform various electrophysiological and cardiac interventional procedures which require cannulation. The Thebesian valve (TV) guarding the coronary sinus orifice (CSO) exhibits morphological variations which might make cannulation unsuccessful leading to the failure of invasive cardiac procedures. This study aimed to analyze in detail the morphological features of the TV in fresh autopsied human hearts which were representative of the adult population of this region owing to its practical implications in invasive cardiac procedures. Methodology This was a cross-sectional, descriptive study conducted in the Department of Anatomy in collaboration with the Department of Forensic Medicine and Toxicology at Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry. A total of 104 fresh adult heart specimens were collected during the autopsy. The CSO was located, and the characteristic shape, composition, position, and extent of coverage of the CSO by the TV were observed and analyzed. Results The TV was present in 65% of heart specimens. The most common shape was remnant (33%), and the most common site of origin was inferior (63%). The valve composition was thin and membranous in 63% of heart specimens. In 7% of heart specimens, the TV covered more than 75% of the CSO diameter, of which in 4% of heart specimens, the CSO was completely closed and found to be obstructive. Conclusions This study highlights the variability in the morphological structure of the TV in adult human hearts and its potential implications in unsuccessful CS cannulation and failure of invasive cardiac procedures. Thus, prior imaging of the TV should be an integral part of CS cannulation procedures to avoid unsuccessful cannulation and complications related to repeated forceful cannulation.
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Pradhan A, Bajaj V, Vishwakarma P, Bhandari M, Sharma A, Chaudhary G, Chandra S, Sethi R, Narain VS, Dwivedi S. Study of coronary sinus anatomy during levophase of coronary angiography. World J Cardiol 2022; 14:372-381. [PMID: 35979180 PMCID: PMC9258222 DOI: 10.4330/wjc.v14.i6.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/13/2022] [Accepted: 05/14/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Coronary sinus (CS) imaging has recently gained importance due to increasing need for mapping and ablation of electrophysiological arrhythmias and left ventricular (LV) pacing during cardiac resynchronization therapy (CRT). Retrograde venogram is the current standard for imaging CS and its tributaries.
AIM To evaluate CS anatomy during levophase of routine coronary angiography to aid LV lead implantation during CRT.
METHODS In this prospective observational study, 164 patients undergoing routine coronary angiography for various indications (Chronic stable angina-44.5%, acute coronary syndrome- 39.5%, Dilated cardiomyopathy-11%, atypical chest pain-5%) were included. Venous phase (levophase) of left coronary injection was recorded in left anterior oblique - cranial and right anterior oblique -cranial views. Visibility of coronary veins, width and shape of CS ostium, angulations of proximal CS with body of CS were noted. Presence, size, take-off angle and tortuosity of posterolateral vein (PLV), anterior interventricular veins (AIV) and middle cardiac vein (MCV) were also noted.
RESULTS During levophase, visibility grade (Muhlenbruch grade) for coronary veins was 3 in 74% and 2 in 26% of cases. Visibility of CS did not correlate with body mass index. The diameter of CS ostium was < 10 mm, 10-15 mm and > 15 mm in 48%, 42% and 10% of patients respectively. Proximal CS was tubular in 136 (83%) patients and funnel-shaped in 28 (17%) patients. Sharp take-off angulation between ostium and body of CS was seen in 16 (10%) patients. Two or more PLV were present in 8 patients while PLV was absent in 52 (32%) patients. Angle of take-off of PLV with body of CS was favourable (0°-45°) in 65 (40%) patients. The angle was 45°-90° in 36 patients and difficult take-off angle (> 90°) was seen in 8 patients. Length of PLV reached distal third of myocardium in 84 cases and middle third in 11 cases. There was no tortuosity in 79 cases, a single bend in 29 cases and more than 2 bends in 4 cases. Thirty nine (24%) patients had other veins supplying posterior/Lateral wall of LV. There was a single vein supplying lateral/posterior wall in 31 (19%) patients. Diameter of MCV and AIV was significantly larger in patients with absent PLV as compared to patients with a PLV.
CONCLUSION Levophase study of left coronary injection is effective in visualization of the CS in almost all patients undergoing coronary angiography and may be an effective alternative to retrograde venogram in patients with LV dysfunction or LBBB.
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Affiliation(s)
- Akshyaya Pradhan
- Department of Cardiology, King George Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Vrishank Bajaj
- Department of Cardiology, King George Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Pravesh Vishwakarma
- Department of Cardiology, King George Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Monika Bhandari
- Department of Cardiology, King George Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Akhil Sharma
- Department of Cardiology, King George Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Gaurav Chaudhary
- Department of Cardiology, King George Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Sharad Chandra
- Department of Cardiology, King George Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Rishi Sethi
- Department of Cardiology, King George Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Varun Shankar Narain
- Department of Cardiology, King George Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Sudhanshu Dwivedi
- Department of Cardiology, King George Medical University, Lucknow 226003, Uttar Pradesh, India
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Butter C, Georgi C, Stockburger M. Optimal CRT Implantation-Where and How To Place the Left-Ventricular Lead? Curr Heart Fail Rep 2021; 18:329-344. [PMID: 34495452 PMCID: PMC8484220 DOI: 10.1007/s11897-021-00528-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/21/2021] [Indexed: 12/28/2022]
Abstract
Purpose of Review Cardiac resynchronization therapy (CRT) represents a well-established and effective non-pharmaceutical heart failure (HF) treatment in selected patients. Still, a significant number of patients remain CRT non-responders. An optimal placement of the left ventricular (LV) lead appears crucial for the intended hemodynamic and hence clinical improvement. A well-localized target area and tools that help to achieve successful lead implantation seem to be of utmost importance to reach an optimal CRT effect. Recent Findings Recent studies suggest previous multimodal imaging (CT/cMRI/ECG torso) to guide intraprocedural LV lead placement. Relevant benefit compared to empirical lead optimization is still a matter of debate. Technical improvements in leads and algorithms (e.g., multipoint pacing (MPP), adaptive algorithms) promise higher procedural success. Recently emerging alternatives for ventricular synchronization such as conduction system pacing (CSP), LV endocardial pacing, or leadless pacing challenge classical biventricular pacing. Summary This article reviews current strategies for a successful planning, implementation, and validation of the optimal CRT implantation. Pre-implant imaging modalities offer promising assistance for complex cases; empirical lead positioning and intraoperative testing remain the cornerstone in most cases and ensure a successful CRT effect.
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Affiliation(s)
- Christian Butter
- Department of Cardiology, Heart Center Brandenburg, University Hospital Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Christian Georgi
- Department of Cardiology, Heart Center Brandenburg, University Hospital Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Martin Stockburger
- Department of Internal Medicine/Cardiology, Havelland Kliniken GmbH, Nauen, Germany
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Sławek-Szmyt S, Szmyt K, Żaba C, Grygier M, Lesiak M, Araszkiewicz A. Peculiarities in coronary sinus anatomy: implications for successful cannulation from an autoptic study. Europace 2021; 23:1787-1794. [PMID: 33864081 PMCID: PMC8576278 DOI: 10.1093/europace/euab108] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 04/02/2021] [Indexed: 11/23/2022] Open
Abstract
Aims The number of cardiovascular procedures using the coronary sinus (CS) as a gateway is constantly increasing. The present study aimed to define specific structures within CS, which could potentially complicate CS cannulation and to develop a new Thebesian valve (TV) classification system. Methods and results The study was performed on 560 consecutive unfixed cadaveric hearts during routine autopsy examination (1–3 days post-mortem). Basic CS dimensions were measured and the presence and dimensions of the TV and the Vieussens valve (VV) were assessed. Thebesian valves were classified according to their morphology into six main types: remnant fold, semilunar, fenestrated, chord, fused strands, and mixed shaped. The median age of hearts was 48 years (range 16–95 years), and 38.9% were female. Thebesian valve was present in 79.5%. The most common TV type was semilunar (54%) followed by fenestrated (8.2%), remnant fold (5.5%), fused strands (4.8%), chord (4.0%), and mixed shaped (3.0%). In 1.1% of hearts, TV totally covered the coronary sinus ostium (CSO). The VV was detected in 67.9%. Potentially occlusive VV was found in 1.1% hearts and in all of which it coexisted with obstructive TV. The median CSO area was 87.9 mm2 [interquartile range (IQR): 56.5–127.1 mm2] and median CS length was 38 mm (IQR: 29.5–45 mm). The CSO area and CS length correlated with each other and with the right atrium’s dimensions. Conclusion We identified six types of TVs, among which only 1.1% TVs caused total occlusion of CSO. The obstructive TV co-existed with potentially occlusive VV what might hinder CS cannulation.
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Affiliation(s)
- Sylwia Sławek-Szmyt
- 1st Department of Cardiology, Poznan University of Medical Sciences, Dluga Street ½, 61-848 Poznan, Poland
| | - Krzysztof Szmyt
- Department of General, Endocrine and Gastrointestinal Oncology Surgery, Poznan University of Medical Sciences, Przybyszewski Street 49, 60-355 Poznan, Poland
| | - Czesław Żaba
- Department of Forensic Medicine, Poznan University of Medical Sciences, Swiecicki Street 6, 60-789 Poznan, Poland
| | - Marek Grygier
- 1st Department of Cardiology, Poznan University of Medical Sciences, Dluga Street ½, 61-848 Poznan, Poland
| | - Maciej Lesiak
- 1st Department of Cardiology, Poznan University of Medical Sciences, Dluga Street ½, 61-848 Poznan, Poland
| | - Aleksander Araszkiewicz
- 1st Department of Cardiology, Poznan University of Medical Sciences, Dluga Street ½, 61-848 Poznan, Poland
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Evaluation of the anatomical variations of the coronary venous system in patients with coronary artery calcification using 256-slice computed tomography. PLoS One 2020; 15:e0242216. [PMID: 33206718 PMCID: PMC7673525 DOI: 10.1371/journal.pone.0242216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 10/28/2020] [Indexed: 11/20/2022] Open
Abstract
The factors that determine the anatomical variations of the coronary venous system (CVS) are poorly understood. The objective of this study was to evaluate the anatomical variations of the CVS in patients with coronary artery calcification. 196 patients underwent non-contrast CT and coronary CT angiography using 256-slice CT. All subjects were divided into four groups based on their coronary artery calcium score (CACS): 50 patients with CACS = 0 Agatston unit (AU), 52 patients with CACS = 1–100 AU, 44 patients with CACS = 101–400 AU, and 50 patients with CACS > 400 AU. The presence of the following cardiac veins was evaluated: the coronary sinus (CS), great cardiac vein (GCV), posterior interventricular vein (PIV), posterior vein of the left ventricle (PVLV), left marginal vein (LMV), anterior interventricular vein (AIV), and small cardiac vein (SCV). Vessel diameters were also measured. We found that the CS, GCV, PIV, and AIV were visualized in all patients, whereas the PVLV and LMV were identified in a certain proportion of patients: 98% and 96% in the CACS = 0 AU group, 100% and 78.8% in the CACS = 1–100 AU group, 93.2% and 77.3% in the CACS = 101–400 AU group, and 98% and 78% in the CACS > 400 AU group, respectively. The LMV was less often identified in the last three groups than in the first group (p < 0.05). The frequency of having either one PVLV or LMV was higher in the last three groups than in the first group (p < 0.05). No significant differences in vessel diameters were observed between the groups. It was concluded that patients with coronary artery calcification were less likely to have the LMV, which might hamper the left ventricular lead implantation in cardiac resynchronization therapy.
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Assessment of the Relationship Between the Coronary Venous and Arterial Systems Using 256-Slice Computed Tomography. J Comput Assist Tomogr 2020; 44:1-6. [DOI: 10.1097/rct.0000000000000949] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Żabówka A, Hołda J, Strona M, Koziej M, Krawczyk‐Ożóg A, Jasińska KA, Kuniewicz M, Lelakowski J, Hołda MK. Morphology of the Vieussens valve and its imaging in cardiac multislice computed tomography. J Cardiovasc Electrophysiol 2019; 30:1325-1329. [DOI: 10.1111/jce.14018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/17/2019] [Accepted: 05/30/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Anna Żabówka
- HEART—Heart Embryology and Anatomy Research Team, Department of AnatomyJagiellonian University Medical College Cracow Poland
| | - Jakub Hołda
- HEART—Heart Embryology and Anatomy Research Team, Department of AnatomyJagiellonian University Medical College Cracow Poland
| | - Marcin Strona
- Department of Forensic MedicineJagiellonian University Medical College Cracow Poland
| | - Mateusz Koziej
- HEART—Heart Embryology and Anatomy Research Team, Department of AnatomyJagiellonian University Medical College Cracow Poland
| | - Agata Krawczyk‐Ożóg
- HEART—Heart Embryology and Anatomy Research Team, Department of AnatomyJagiellonian University Medical College Cracow Poland
| | - Katarzyna A. Jasińska
- HEART—Heart Embryology and Anatomy Research Team, Department of AnatomyJagiellonian University Medical College Cracow Poland
| | - Marcin Kuniewicz
- Department of Electrocardiology, Institute of Cardiology, The John Paul II Hospital in CracowJagiellonian University Medical College Cracow Poland
| | - Jacek Lelakowski
- Department of Electrocardiology, Institute of Cardiology, The John Paul II Hospital in CracowJagiellonian University Medical College Cracow Poland
| | - Mateusz K. Hołda
- HEART—Heart Embryology and Anatomy Research Team, Department of AnatomyJagiellonian University Medical College Cracow Poland
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Shanubhogue S, Mohamed T, Shankar N. Morphometry of the triangle of Koch and position of the coronary sinus opening in cadaveric fetal hearts. Indian Heart J 2017; 69:125-128. [PMID: 28228296 PMCID: PMC5319009 DOI: 10.1016/j.ihj.2016.07.004] [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: 06/27/2015] [Revised: 06/09/2016] [Accepted: 07/02/2016] [Indexed: 11/25/2022] Open
Abstract
AIMS The aim of the present study was to determine the variations in the position of the coronary sinus (CS) ostium in normal cadaveric fetal (28 weeks or more) hearts and to assess the impact that these variations had on the dimensions of the triangle of Koch (TK). METHODS This cross-sectional analytical study was conducted on 28 fetal hearts. The dimensions and area of the TK were calculated by two methods, M1 (anatomical) and M2 (clinical). The position of the CS was defined with respect to the tendon of Todaro. Differences between M1 and M2 were estimated using the paired T test. Pearson's correlation coefficient and the adjusted correlation coefficient were used to estimate the strength of association between measurements made by the methods. RESULTS Ten (35.7%) cadavers were male and 18 (64.3%) female. The mean gestational age was 32.4±3.3 weeks. Using M1, the mean dimensions of the triangle in millimeters (mm) were 9.2±2.2, 6.6±1.8, and 6±2.4 respectively for a, b and c. Similarly, the dimensions using M2 were 7±2.1, 4.7±1.5, and 4.8±2.2. The area in mm2 was 20.4±10.4 and 11.7±6.7 using M1 and M2 respectively. All measurements were significantly greater with M1. All correlation coefficients were high and significant. The CS ostium and tendon of Todaro maintained a relatively constant positional relationship. CONCLUSIONS Significantly higher values were noted in the dimensions of TK using M1. High significant positive correlations were observed in measurements made by the two methods. The CS ostium was relatively constantly placed within the TK.
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Affiliation(s)
| | - Thuslima Mohamed
- Department of Anatomy, St. John's Medical College, Bangalore, Karnataka, India
| | - Nachiket Shankar
- Department of Anatomy, St. John's Medical College, Bangalore, Karnataka, India.
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Moral S, Ballesteros E, Huguet M, Panaro A, Palet J, Evangelista A. Differential Diagnosis and Clinical Implications of Remnants of the Right Valve of the Sinus Venosus. J Am Soc Echocardiogr 2016; 29:183-94. [DOI: 10.1016/j.echo.2015.11.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Indexed: 11/16/2022]
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Stone GW, Chung ES, Stancak B, Svendsen JH, Fischer TM, Kueffer F, Ryan T, Bax J, Leon A. Peri-infarct zone pacing to prevent adverse left ventricular remodelling in patients with large myocardial infarction. Eur Heart J 2015; 37:484-93. [PMID: 26321236 DOI: 10.1093/eurheartj/ehv436] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 08/12/2015] [Indexed: 11/13/2022] Open
Abstract
AIMS We sought to determine whether peri-infarct pacing prevents left ventricular (LV) remodelling and improves functional and clinical outcomes in patients with large first myocardial infarction (MI). METHODS AND RESULTS A total of 126 patients at 27 international sites within 10 days of onset of anterior or non-anterior MI with creatine phosphokinase >3000 U/L and QRS duration ≤120 ms were randomized 1:1:1 to dual-site biventricular pacing vs. single-site LV only pacing vs. non-implanted control. The primary endpoint was the echocardiographic core laboratory-assessed change in LV end-diastolic volume (ΔLVEDV) from baseline to 18 months between the pooled pacing therapy groups and the control group. ΔLVEDV increased by 15.3 ± 28.6 mL in the control group and by 16.7 ± 30.5 mL in the pooled pacing groups during follow-up (adjusted mean difference (95% CI) = 0.6 (-12.3, 13.5) mL, P = 0.92). There were also no significant between-group differences in the change in LV end-systolic volume or ejection fraction over time. Quality of life, as assessed by the Minnesota Living with Heart Failure (HF) and European Quality of Life-5 Dimension questionnaires and New York Heart Association class, was also similar between groups during 18-month follow-up. Six-minute walk distance improved during follow-up to an equal degree between groups, and there were no significant differences in the 18-month rates of death or HF hospitalization between the pooled pacing therapy vs. control groups (17.4 vs. 21.7% respectively, P = 0.59). CONCLUSIONS In the present multicentre, randomized trial, peri-infarct pacing did not prevent LV remodelling or improve functional or clinical outcomes during 18-month follow-up in patients with large first MI. CLINICALTRIALSGOV IDENTIFIER NCT01213251.
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Affiliation(s)
- Gregg W Stone
- Columbia University Medical Center, New York-Presbyterian Hospital, and the Cardiovascular Research Foundation, 111 E. 59th St., 11th Floor, New York, NY 10022, USA
| | | | - Branislav Stancak
- Eastern Slovakia Institute for Cardiac and Vascular Diseases, Kosice, Slovakia
| | - Jesper H Svendsen
- Rigshospitalet and the University of Copenhagen, Copenhagen, Denmark
| | | | | | - Thomas Ryan
- The Ohio State University, Columbus, OH, USA
| | - Jeroen Bax
- Leiden University Medical Center, Leiden, The Netherlands
| | - Angel Leon
- Emory University School of Medicine, Atlanta, GA, USA
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The Thebesian valve and coronary sinus in cardiac magnetic resonance. J Interv Card Electrophysiol 2015; 43:197-203. [PMID: 25863798 PMCID: PMC4486412 DOI: 10.1007/s10840-015-9994-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 03/06/2015] [Indexed: 11/22/2022]
Abstract
Purpose There is no complex research exploring usefulness of cardiac magnetic resonance in the evaluation of the coronary sinus including Thebesian valve, which can be useful before selected electrophysiology procedures. Methods One hundred twenty-two patients aged 49.2 ± 17.2 (42 women) were included in the study; 4 of them were excluded. A steady-state free-precession (SSFP) sequence was the basis of the visualization and analysis of the coronary sinus as well as Thebesian valve. In selected cases, dedicated coronary sinus sequences were created. All data were evaluated by experienced cardiac magnetic resonance investigators. Results We were able to visualize the coronary sinus by using basic SSFP sequence in all patients, however in four cases in suboptimal quality. Average length of the coronary sinus was 39.73 ± 16.9 mm, average diameter was 9.81 ± 9.3 mm, and average angle of the entrance of the coronary sinus into the right atrium was 111.37 ± 13.8°. The Thebesian valve as the gate of the coronary sinus was found in 56 cases (45.9 %). In 21 patients (17.2 % of all), the valve was porous or almost totally covered the coronary sinus ostium, which can potentially create problems during CS cannulation. Conclusions In most of the cases, it is possible to visualize and measure the coronary sinus using cardiac magnetic resonance with SSFP sequence. In selected cases, it is necessary to perform additional dedicated short sequences. Thebesian valve was visualized in almost 50 % of patients.
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Hołda MK, Klimek-Piotrowska W, Koziej M, Mazur M. Anatomical variations of the coronary sinus valve (Thebesian valve): implications for electrocardiological procedures. Europace 2015; 17:921-7. [PMID: 25767087 DOI: 10.1093/europace/euu397] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 12/15/2014] [Indexed: 11/14/2022] Open
Abstract
AIMS The Thebesian valve (TV) can be a significant obstacle to coronary sinus (CS) cannulation. The aim of this study was to evaluate the characteristic features of the CS valve--TV anatomy. In particular, emphasis was placed on identifying specific structures of the TV that could potentially complicate CS cannulation. METHODS AND RESULTS We examined 273 autopsied human hearts. The height of the TV and the diameter of the CS were measured. The valves were classified according to their shape into five types: remnant, semilunar, fold, cord, and mesh and fenestrated. The mean transverse CS ostium (CSO) diameter was 12.2 ± 3.5 mm. The TV was present in 224 (82.1%) cases. The most common type of TV was semilunar: 32.6%; followed by remnant: 25.5%; fold: 17.4%; cord: 14.3%; and lastly mesh and fenestrated: 10.3%. The mean TV height for remnant-semilunar-fold types was 5.8 ± 3.0 mm. In seven cases, the present TV (2.6%) covered the entire orifice of the CS. Hearts with larger CSO diameter had lower TV height (P < 0.001). CONCLUSIONS We propose a new classification of the TV shapes based on the largest sample to date. We assessed that only in 2.6% of all 273 cases the presence of an obstructive TV can cause unsuccessful cannulation. The height of the TV was inversely correlated to the CSO diameter (r = -0.33; P < 0.001).
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Affiliation(s)
- Mateusz K Hołda
- Department of Anatomy, Jagiellonian University Medical College, Kopernika 12, Kraków 31-034, Poland
| | | | - Mateusz Koziej
- Department of Anatomy, Jagiellonian University Medical College, Kopernika 12, Kraków 31-034, Poland
| | - Małgorzata Mazur
- Department of Anatomy, Jagiellonian University Medical College, Kopernika 12, Kraków 31-034, Poland
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Mlynarski R, Mlynarska A, Sosnowski M. Coronary venous system in cardiac computer tomography: Visualization, classification and role. World J Radiol 2014; 6:399-408. [PMID: 25071880 PMCID: PMC4109091 DOI: 10.4329/wjr.v6.i7.399] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 02/28/2014] [Accepted: 05/19/2014] [Indexed: 02/06/2023] Open
Abstract
The role of the coronary venous system was underestimated for many years. In the last 20 years, a few percutaneous cardiology techniques in which the anatomy of the coronary venous system was significant were developed and are in use. The most important seems to be cardiac resynchronization therapy, which is an invasive method for the treatment of heart failure. Unfortunately, one of the major problems is the significant anatomical variability of the coronary venous system. The description of the selected anatomical structures is only useful in selected cases such as, for example, the obstruction of selected vessels, a huge Thebesian valve, etc. The 3D images can add significant value; however, their usefulness is limited due to the different points of view that are obtained during intra-operational fluoroscopy. After summarizing all of the articles and guidelines, it can be recommended that the visualization of the coronary venous system be performed in certain patients before cardiac resynchronization. The best option is to use tomography with retrospective gating with the optimal reconstruction of cardiac veins that occurs during the diastolic phases.
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Wang L, Yuan S, Borgquist R, Höijer CJ, Brandt J. Coronary sinus cannulation with a steerable catheter during biventricular device implantation. SCAND CARDIOVASC J 2014; 48:41-6. [PMID: 24432887 DOI: 10.3109/14017431.2013.875623] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To determine whether a steerable catheter with electrogram guidance (CS-assist group) could facilitate access to the coronary sinus (CS) during cardiac resynchronization therapy (CRT) implantation. DESIGN Consecutive patients who underwent CRT implantation were recruited prospectively into the CS-assist group (n = 81) and compared with those using conventional techniques without an electrogram guidance (conventional group, n = 101). RESULTS The CS cannulation success rate was clearly greater in the CS-assist group (100%) than that in the conventional group (95%, p < 0.05), with significantly shorter mean procedure time (52.6 ± 20.6 min vs. 73.2 ± 40.9 min, p < 0.01) and fluoroscopy time (3.6 ± 3.2 min vs. 14.2 ± 20.4 min, p < 0.01). In the five CS cannulation failure cases, mean procedure time (144.0 ± 37.0 min) and fluoroscopy time (57.8 ± 24.8 min) were significantly longer than those in the other patients (61.2 ± 32.3 and 8.2 ± 13.6 min, respectively, n = 177, both p < 0.01). CONCLUSIONS Using the steerable catheter with real-time electrogram guidance, location of and access to the CS is more rapid and successful, which may improve the success of the CRT implantation and may give significant time savings.
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Affiliation(s)
- Lingwei Wang
- Department of Arrhythmias, Skane University Hospital, Lund University , Lund , Sweden
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VAIDYA VAIBHAV, SYED FAISAL, DESIMONE CHRISTOPHER, BDEIR SAMI, MUNOZ FREDDYDELCARPIO, PACKER DOUGLASL, ASIRVATHAM SAMUELJ. Outflow Tract Ventricular Tachycardia Mapped to the Coronary Arteries: Anatomical Correlates and Management Strategies. J Cardiovasc Electrophysiol 2013; 24:1416-22. [DOI: 10.1111/jce.12251] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 07/17/2013] [Accepted: 07/18/2013] [Indexed: 11/30/2022]
Affiliation(s)
- VAIBHAV VAIDYA
- Department of Internal Medicine; Mayo Clinic; Rochester Minnesota USA
| | - FAISAL SYED
- Division of Cardiovascular Diseases; Mayo Clinic; Rochester Minnesota USA
| | | | - SAMI BDEIR
- Mayo Graduate School of Medicine Visiting Scholars Program; Mayo Clinic; Rochester Minnesota USA
| | | | - DOUGLAS L. PACKER
- Division of Cardiovascular Diseases; Mayo Clinic; Rochester Minnesota USA
| | - SAMUEL J. ASIRVATHAM
- Division of Cardiovascular Diseases; Mayo Clinic; Rochester Minnesota USA
- Department of Pediatrics and Adolescent Medicine Mayo Clinic; Rochester Minnesota USA
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