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Parenti VG, Vijay K, Maroules CD, Majdalany BS, Koweek LM, Khaja MS, Ghoshhajra BB, Agarwal PP, Contrella BN, Keefe NA, Lo BM, Malik SB, Surasi DS, Waite K, Williamson EE, Abbara S, Dill KE. ACR Appropriateness Criteria® Workup of Noncerebral Systemic Arterial Embolic Source. J Am Coll Radiol 2023; 20:S285-S300. [PMID: 37236749 DOI: 10.1016/j.jacr.2023.02.005] [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: 02/21/2023] [Accepted: 02/27/2023] [Indexed: 05/28/2023]
Abstract
Noncerebral systemic arterial embolism, which can originate from cardiac and noncardiac sources, is an important cause of patient morbidity and mortality. When an embolic source dislodges, the resulting embolus can occlude a variety of peripheral and visceral arteries causing ischemia. Characteristic locations for noncerebral arterial occlusion include the upper extremities, abdominal viscera, and lower extremities. Ischemia in these regions can progress to tissue infarction resulting in limb amputation, bowel resection, or nephrectomy. Determining the source of arterial embolism is essential in order to direct treatment decisions. This document reviews the appropriateness category of various imaging procedures available to determine the source of the arterial embolism. The variants included in this document are known arterial occlusion in the upper extremity, lower extremity, mesentery, kidneys, and multiorgan distribution that are suspected to be of embolic etiology. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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Affiliation(s)
- Vincent G Parenti
- Research Author, University of Texas Southwestern Medical Center, Dallas, Texas
| | | | | | | | - Lynne M Koweek
- Panel Chair, Duke University Medical Center, Durham, North Carolina
| | | | | | | | | | - Nicole A Keefe
- University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Bruce M Lo
- Sentara Norfolk General Hospital/Eastern Virginia Medical School, Norfolk, Virginia; American College of Emergency Physicians
| | - Sachin B Malik
- VA Palo Alto Health Care System, Palo Alto, California and Stanford University, Stanford, California
| | - Devaki Shilpa Surasi
- The University of Texas MD Anderson Cancer Center, Houston, Texas; Commission on Nuclear Medicine and Molecular Imaging
| | - Kathleen Waite
- Duke University Medical Center, Durham, North Carolina, Primary care physician
| | - Eric E Williamson
- Mayo Clinic, Rochester, Minnesota; Society of Cardiovascular Computed Tomography
| | - Suhny Abbara
- Specialty Chair, UT Southwestern Medical Center, Dallas, Texas
| | - Karin E Dill
- Specialty Chair, Emory University Hospital, Atlanta, Georgia
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Zhai M, Huang L, Liang L, Tian P, Zhao L, Zhao X, Huang B, Feng J, Huang Y, Zhou Q, Zhang Y, Zhang J. Clinical characteristics of patients with heart failure and intracardiac thrombus. Front Cardiovasc Med 2022; 9:934160. [PMID: 36277765 PMCID: PMC9582764 DOI: 10.3389/fcvm.2022.934160] [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: 05/02/2022] [Accepted: 09/13/2022] [Indexed: 11/30/2022] Open
Abstract
Background Heart failure (HF) patients are in a hypercoagulable state that predisposes them to an intracardiac thrombus. We aim to assess the clinical features of patients with HF and intracardiac thrombus. Methods Patients diagnosed with HF with intracardiac thrombus were enrolled in this study. Patients' demographics, clinical comorbidities, laboratory tests, and cardiac imaging parameters are recorded. Baseline characteristics are described; the relationship between intracardiac thrombus location and cardiac underlying diseases, New York Heart Association (NYHA) class, and left ventricular ejection fraction (LVEF) are analyzed; and the anticoagulation rate is summarized. Results A total of 1,248 patients were included in the study. Most patients were men (72.2%) with a mean age of 54 years. The left ventricle is the most frequently involved (66.8%), and the prevalence of left ventricular thrombus is more in patients complicated with coronary artery diseases, ventricular noncompaction cardiomyopathy, and dilated cardiomyopathy (86.3%, 86.4%, and 78.2%, respectively). When combined with atrial fibrillation, atrial flutter, hypertrophic cardiomyopathy, restrictive cardiomyopathy, or valvular cardiomyopathy, the intracardiac thrombus is mostly likely to occur in the left atrium. The incidence rate of left cardiac thrombosis increased with the decline of LVEF, an increase of NYHA class, and enlargement of a cardiac chamber. Overall, the anticoagulation rate was 56.8%, with warfarin still the mainstay drug (45.1%), while the prescription of non-vitamin K antagonist oral anticoagulants rose year by year. As for imaging modalities for thrombus detection and diagnosis, transthoracic echocardiography was the most widely performed (75.1%). Conclusion This study summarizes the underlying disease constitution, thrombus location and related factors, imaging modalities, and antithrombotic profile in HF patients with intracardiac thrombus comprehensively.
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Jingquan Z, Deyong L, Huimin C, Hua F, Xuebin H, Chenyang J, Yan L, Xuebin L, Min T, Zulu W, Yumei X, Jinlin Z, Wei Z, Xiaochun Z, Daxin Z, Yun Z, Changsheng M, Zei PC, Di Biase L. Intracardiac echocardiography Chinese expert consensus. Front Cardiovasc Med 2022; 9:1012731. [PMID: 36277762 PMCID: PMC9584059 DOI: 10.3389/fcvm.2022.1012731] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/13/2022] [Indexed: 11/13/2022] Open
Abstract
In recent years, percutaneous catheter interventions have continuously evolved, becoming an essential strategy for interventional diagnosis and treatment of many structural heart diseases and arrhythmias. Along with the increasing complexity of cardiac interventions comes ever more complex demands for intraoperative imaging. Intracardiac echocardiography (ICE) is well-suited for these requirements with real-time imaging, real-time monitoring for intraoperative complications, and a well-tolerated procedure. As a result, ICE is increasingly used many types of cardiac interventions. Given the lack of relevant guidelines at home and abroad and to promote and standardize the clinical applications of ICE, the members of this panel extensively evaluated relevant research findings, and they developed this consensus document after discussions and correlation with front-line clinical work experience, aiming to provide guidance for clinicians and to further improve interventional cardiovascular diagnosis and treatment procedures.
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Affiliation(s)
- Zhong Jingquan
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China,Department of Cardiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China,*Correspondence: Zhong Jingquan,
| | - Long Deyong
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China,Long Deyong,
| | - Chu Huimin
- Ningbo First Hospital, Zhejiang University, Ningbo, China
| | - Fu Hua
- West China Hospital, Sichuan University, Chengdu, China
| | - Han Xuebin
- The Affiliated Cardiovascular Hospital, Shanxi Medical University, Taiyuan, China
| | - Jiang Chenyang
- Sir Run Run Shaw Hospital of Zhejiang University, Hangzhou, China
| | - Li Yan
- Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
| | - Li Xuebin
- Peking University People’s Hospital, Beijing, China
| | - Tang Min
- Fuwai Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wang Zulu
- General Hospital of Northern Theater Command, Shenyang, China
| | - Xue Yumei
- Guangdong Provincial People’s Hospital, Guangzhou, China
| | | | - Zhang Wei
- Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
| | | | - Zhou Daxin
- Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhang Yun
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ma Changsheng
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Paul C. Zei
- Brigham and Women’s Hospital, Boston, MA, United States
| | - Luigi Di Biase
- Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, United States
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He G, Liu H, Huang X, Deng X, Yang G, Luo D, Cai L. Intracardiac versus transesophageal echocardiography for diagnosis of left atrial appendage thrombosis in atrial fibrillation: A meta-analysis. Clin Cardiol 2021; 44:1416-1421. [PMID: 34480383 PMCID: PMC8495084 DOI: 10.1002/clc.23698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 06/18/2021] [Accepted: 07/15/2021] [Indexed: 11/07/2022] Open
Abstract
INTRODUCTION Left atrial appendage (LAA) thrombus in patients with atrial fibrillation is usually detected by transesophageal echocardiography (TEE). Intracardiac echocardiography (ICE) can be a suitable alternative to detect thrombosis. However, the effectiveness of the two methods for detecting LAA thrombus is still unclear, we performed a meta-analysis that compared ICE versus TEE for LAA thrombosis. METHODS We searched PubMed, Cochrane Library, and Embase for published abstracts and manuscripts on June 1, 2020. The analysis was performed using RevMan 5.3, STATA 15, and Meta-Disc 1.4. RESULTS Eight studies consists of 1108 patients (TEE = 558 vs. ICE = 550) were included. The average sensitivity of ICE and TEE to diagnose LAA thrombus is 1.0 (95% CI: 0.91-1.00) versus 0.68 (95% CI: 0.49-0.83), and specificity of ICE and TEE to diagnosis of LAA thrombus is 1.0 (95% CI: 0.99-1.00) versus 0.98 (95% CI: 0.96-0.99). The AUC of ICE and TEE is 0.9846 (SEAUC = 0.0196) and 0.9655 (SEAUC = 0.0401), and the Q* statistics is 0.9462 (SEQ* = 0.0406) and 0.9127 (SEQ * = 0.0616), respectively. Z test was performed on Q* statistics (Z = 0.45, p > .05). CONCLUSION The ICE and TEE have similar diagnostic efficacy for LAA thrombosis, but the ICE has higher sensitivity. Compared with TEE, ICE may be more advantages and prospects for clinical application.
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Affiliation(s)
- Guijun He
- Chengdu Third People's Hospital, Chengdu Institute of Cardiovascular DiseasesChengduChina
| | - Hanxion Liu
- Chengdu Third People's Hospital, Chengdu Institute of Cardiovascular DiseasesChengduChina
| | | | - Xiaoqi Deng
- Chengdu Third People's Hospital, Chengdu Institute of Cardiovascular DiseasesChengduChina
| | - Guosu Yang
- Chengdu Third People's Hospital, Chengdu Institute of Cardiovascular DiseasesChengduChina
| | - Duan Luo
- Chengdu Third People's Hospital, Chengdu Institute of Cardiovascular DiseasesChengduChina
| | - Lin Cai
- Chengdu Third People's Hospital, Chengdu Institute of Cardiovascular DiseasesChengduChina
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Lurie A, Wang J, Hinnegan KJ, McIntyre WF, Belley-Côté EP, Amit G, Healey JS, Connolly SJ, Wong JA. Prevalence of Left Atrial Thrombus in Anticoagulated Patients With Atrial Fibrillation. J Am Coll Cardiol 2021; 77:2875-2886. [PMID: 34112315 DOI: 10.1016/j.jacc.2021.04.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/05/2021] [Accepted: 04/06/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND The prevalence of left atrial (LA) thrombus in patients with atrial fibrillation (AF) or atrial flutter (AFL) on guideline-directed anticoagulation is not well known, yet this may inform transesophageal echocardiogram (TEE) use before cardioversion or catheter ablation. OBJECTIVES The purpose of this study was to quantify LA thrombus prevalence among patients with AF/AFL on guideline-directed anticoagulation and to identify high-risk subgroups. METHODS EMBASE, MEDLINE, and CENTRAL were systematically searched from inception to July 2020 for studies reporting on LA thrombus prevalence among patients with AF/AFL undergoing TEE following at least 3 weeks of continuous therapeutic oral anticoagulation with vitamin K antagonists (VKAs) or direct oral anticoagulants (DOACs). Meta-analysis was performed using random effects models. RESULTS Thirty-five studies describing 14,653 patients were identified. The mean-weighted LA thrombus prevalence was 2.73% (95% confidence interval [CI]: 1.95% to 3.80%). LA thrombus prevalence was similar for VKA- and DOAC-treated patients (2.80%; 95% CI: 1.86% to 4.21% vs. 3.12%; 95% CI: 1.92% to 5.03%; p = 0.674). Patients with nonparoxysmal AF/AFL had a 4-fold higher LA thrombus prevalence compared with paroxysmal patients (4.81%; 95% CI: 3.35% to 6.86% vs. 1.03%; 95% CI: 0.52% to 2.03%; p < 0.001). LA thrombus prevalence was higher among patients undergoing cardioversion versus ablation (5.55%; 95% CI: 3.15% to 9.58% vs. 1.65%; 95% CI: 1.07% to 2.53%; p < 0.001). Patients with CHA2DS2-VASc scores ≥3 had a higher LA thrombus prevalence compared with patients with scores ≤2 (6.31%; 95% CI: 3.72% to 10.49% vs. 1.06%; 95% CI: 0.45% to 2.49%; p < 0.001). CONCLUSIONS LA thrombus prevalence is high in subgroups of anticoagulated patients with AF/AFL, who may benefit from routine pre-procedural TEE use before cardioversion or catheter ablation.
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Affiliation(s)
- Antony Lurie
- Population Health Research Institute, Hamilton, Ontario, Canada; University of Western Ontario, London, Ontario, Canada
| | - Jia Wang
- Population Health Research Institute, Hamilton, Ontario, Canada; Hamilton Health Sciences Centre, Hamilton, Ontario, Canada
| | | | - William F McIntyre
- Population Health Research Institute, Hamilton, Ontario, Canada; Hamilton Health Sciences Centre, Hamilton, Ontario, Canada
| | - Emilie P Belley-Côté
- Population Health Research Institute, Hamilton, Ontario, Canada; Hamilton Health Sciences Centre, Hamilton, Ontario, Canada; Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Guy Amit
- Hamilton Health Sciences Centre, Hamilton, Ontario, Canada; Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Jeff S Healey
- Population Health Research Institute, Hamilton, Ontario, Canada; Hamilton Health Sciences Centre, Hamilton, Ontario, Canada; Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Stuart J Connolly
- Population Health Research Institute, Hamilton, Ontario, Canada; Hamilton Health Sciences Centre, Hamilton, Ontario, Canada; Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Jorge A Wong
- Population Health Research Institute, Hamilton, Ontario, Canada; Hamilton Health Sciences Centre, Hamilton, Ontario, Canada; Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada.
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Nakamura R, Oda A, Tachibana S, Sudo K, Shigeta T, Sagawa Y, Kurabayashi M, Goya M, Okishige K, Sasano T, Yamauchi Y. Prone-position computed tomography in the late phase for detecting intracardiac thrombi in the left atrial appendage before catheter ablation for atrial fibrillation. J Cardiovasc Electrophysiol 2021; 32:1803-1811. [PMID: 33969567 PMCID: PMC8359968 DOI: 10.1111/jce.15062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/10/2021] [Accepted: 03/29/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Contrast computed tomography (CT) is a useful tool for the detection of intracardiac thrombi. We aimed to assess the accuracy of the late-phase prone-position contrast CT (late-pCT) for thrombus detection in patients with persistent or long-standing persistent atrial fibrillation (AF). METHODS Early and late-phase pCT were performed in 300 patients with persistent or long-standing AF. If late-pCT did not show an intracardiac contrast defect (CD), catheter ablation (CA) was performed. Immediately before CA, intracardiac echocardiography (ICE) from the left atrium was performed to confirm thrombus absence and the estimation of the blood velocity of the left atrial appendage (LAA). For patients with CDs on late-pCT, CA performance was delayed, and late-pCT was performed again after several months following oral anticoagulant alterations or dosage increases. RESULTS Of the 40 patients who exhibited CDs in the early phase of pCT, six showed persistent CDs on late-pCT. In the remaining 294 patients without CDs on late-pCT, the absence of a thrombus was confirmed by ICE during CA. In all six patients with CD-positivity on late-pCT, the CDs vanished under the same CT conditions after subsequent anticoagulation therapy, and CA was successfully performed. Furthermore, the presence of residual contrast medium in the LAA on late-pCT suggested a decreased blood velocity in the LAA ( ≤ 15 cm/s) (sensitivity = 0.900 and specificity = 0.621). CONCLUSIONS Late-pCT is a valuable tool for the assessment of intracardiac thrombi and LAA dysfunction in patients with persistent or long-standing persistent AF before CA.
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Affiliation(s)
- Rena Nakamura
- Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, Yokohama, Kanagawa, Japan
| | - Atsuhito Oda
- Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, Yokohama, Kanagawa, Japan
| | - Shinichi Tachibana
- Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, Yokohama, Kanagawa, Japan
| | - Koji Sudo
- Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, Yokohama, Kanagawa, Japan
| | - Takatoshi Shigeta
- Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, Yokohama, Kanagawa, Japan
| | - Yuichiro Sagawa
- Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, Yokohama, Kanagawa, Japan
| | - Manabu Kurabayashi
- Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, Yokohama, Kanagawa, Japan
| | - Masahiko Goya
- Department of Cardiology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kaoru Okishige
- Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, Yokohama, Kanagawa, Japan
| | - Tetsuo Sasano
- Department of Cardiology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuteru Yamauchi
- Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, Yokohama, Kanagawa, Japan
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Ibebuogu UN, Schafer JH, Schwade MJ, Waller JL, Sharma GK, Robinson VJB. Useful indices of thrombogenesis in the exclusion of intra-cardiac thrombus. Echocardiography 2019; 37:86-95. [PMID: 31854027 PMCID: PMC7027915 DOI: 10.1111/echo.14562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 10/31/2019] [Accepted: 11/22/2019] [Indexed: 02/03/2023] Open
Abstract
Background Cardioversion in patients with atrial fibrillation (AF) can cause cardioembolic stroke, and effective clinical management is necessary to reduce morbidity and mortality. Currently, transesophageal echocardiography (TEE) is the accepted standard to diagnose cardiogenic thromboemboli; however, a negative TEE does not eliminate the possibility of left atrial thrombus. The objective of this study was to evaluate the diagnostic value of supplementing the TEE with additional noninvasive markers to ensure thrombus absence. Methods A prospective study was conducted on 59 patients who underwent TEE for suspected intra‐cardiac thrombi. The TEE indications included acute ischemic stroke (45.7%) and AF or flutter (59.3%). D‐dimer level and white blood cell counts were assessed. Results A negative D‐dimer level (<200 ng/mL) excluded the presence of intra‐cardiac thrombi. Groups with either negative (n = 14) or positive (n = 45) D‐dimer levels had comparable clinical characteristics. Comparing positive D‐dimer–level patients with thrombus (n = 7) and without thrombus (n = 33), patients with thrombus had reduced left atrial appendage (LAA) velocity (P = .0024), reduced left ventricular ejection fraction (LVEF) (P = .0263), increased neutrophil percent (P = .0261), decreased lymphocyte percent (P = .0216), and increased monocyte counts (P = .0220). The area under the receiver operating characteristic (ROC) curve for thrombus diagnostics was larger for combinations of clinical and biochemical data than for each parameter individually. Conclusions Supplementing the gold standard TEE with the analysis of LAA velocity, noninvasive LVEF, D‐dimer, and hemostatic markers provided additional useful diagnostic information. Larger studies are needed to further validate the efficacy of supplementing the TEE to better assess patients for intra‐cardiac thrombi.
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Affiliation(s)
- Uzoma N Ibebuogu
- Division of Cardiology, Department of Medicine, Augusta University Medical Center, Augusta, GA, USA.,Department of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, USA
| | - Joseph H Schafer
- Division of Cardiology, Department of Medicine, Augusta University Medical Center, Augusta, GA, USA
| | - Mark J Schwade
- Division of Cardiology, Department of Medicine, Augusta University Medical Center, Augusta, GA, USA
| | - Jennifer L Waller
- Division of Biostatistics and Data Science, Department of Population Health Sciences, Augusta University Medical Center, Augusta, GA, USA
| | - Gyanendra K Sharma
- Division of Cardiology, Department of Medicine, Augusta University Medical Center, Augusta, GA, USA
| | - Vincent J B Robinson
- Division of Cardiology, Department of Medicine, Augusta University Medical Center, Augusta, GA, USA
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Basman C, Alderwish E, Rambhatla T, Vaishnav A, Kronzon I, Mountantonakis SE. A standardized protocol to reliably visualize the left atrial appendage with intracardiac echocardiography: Importance of multiple imaging sites. Echocardiography 2018; 35:1635-1640. [PMID: 30044527 DOI: 10.1111/echo.14104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/14/2018] [Accepted: 07/03/2018] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Currently, there is no accepted protocol for left atrial appendage (LAA) imaging with intracardiac echocardiography (ICE). OBJECTIVE This study aimed to assess the utility of ICE to reliably visualize the entire cavity of the LAA and propose a specific procedural protocol to achieve the above objective. METHODS We created a three-dimensional reconstruction of the LAA, using two-dimensional ICE sections obtained from three different location (the right atrium [RA], right ventricle inflow [RVI], and right ventricular outflow [RVOT]). We then compared the three-dimensional LAA reconstruction by ICE with one obtained by cardiac computed tomography angiography (CCTA) for morphological and volume differences. RESULTS Three-dimensional reconstruction with ICE could reliably reproduce the LAA as visualized with CCTA but only when ICE sampling was performed from at least two catheter positions. There was no statistically significant difference between LAA volumes obtained with ICE and CCTA (P = 0.33). The contribution of each anatomical location to the total volume was 17% ± 16.6%, 74% ± 13.3%, and 33% ± 26% for RA, RVI, and RVOT, respectively. CONCLUSION In comparison with CCTA, the LAA can be reliably visualized in its entity by ICE, but only if multiple imaging positions (RA, RV inflow, and RVOT) are used.
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Affiliation(s)
- Craig Basman
- Department of Cardiovascular Medicine, Lenox Hill Hospital, Northwell Health, New York, New York
| | - Edris Alderwish
- Department of Cardiovascular Medicine, Lenox Hill Hospital, Northwell Health, New York, New York
| | - Tarak Rambhatla
- Department of Cardiovascular Medicine, Lenox Hill Hospital, Northwell Health, New York, New York
| | - Aditi Vaishnav
- Department of Cardiovascular Medicine, Lenox Hill Hospital, Northwell Health, New York, New York
| | - Itzhak Kronzon
- Department of Cardiovascular Medicine, Lenox Hill Hospital, Northwell Health, New York, New York
| | - Stavros E Mountantonakis
- Department of Cardiovascular Medicine, Lenox Hill Hospital, Northwell Health, New York, New York
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Mosleh W, Sheikh A, Said Z, Ahmed MAA, Gadde S, Shah T, Wilson MF, Beck H, Kim C, Sharma UC. The use of cardiac-CT alone to exclude left atrial thrombus before atrial fibrillation ablation: Efficiency, safety, and cost analysis. Pacing Clin Electrophysiol 2018; 41:727-733. [PMID: 29667208 PMCID: PMC6192873 DOI: 10.1111/pace.13353] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 04/03/2018] [Accepted: 04/08/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Atrial fibrillation (AF) is a growing financial burden on the healthcare system. Cardiac computed tomographic angiography (CCTA) is needed for pulmonary vein mapping before AF ablation (AFA). CCTA has shown to be an alternative to transesophageal echocardiogram (TEE) to rule out left atrial appendage thrombus (LAAT) pre-AFA. We aim to examine the safety, cost-effectiveness, and time-efficiency of utilizing CCTA alone to rule out LAAT before AFA. METHODS We prospectively screened patients with paroxysmal AF undergoing cryoablation. CCTA with delayed enhancement was performed within 72 hours of AFA. Once LAAT was ruled out, patients were enrolled and planned TEE was cancelled. A retrospective control cohort that had both CCTA and TEE prior to AFA was identified. Direct cost data, electrophysiology laboratory utilization time, and 30-day stroke outcomes were collected from the EMR, follow-up phone calls, or clinic visits, and comparative analyses were performed. RESULTS Seventy patients met the inclusion criteria in the prospective CCTA-only cohort, and 71 for the retrospective CCTA+TEE cohort. Baseline characteristics were similar between the two groups. There was a nonsignificant reduction in overall cost ($15,870 ± 1,710 vs $16,557 ± 2,508, P = 0.06) in CCTA-only cohort, whereas the electrophysiology laboratory utilization time was significantly reduced (241.6 ± 41.7 vs 181.3 ±36.4 minutes, P < 0.001). There were no strokes reported on 30-day follow-up in the CCTA-only group. CONCLUSIONS In low-to-intermediate stroke risk patients with paroxysmal AF undergoing cryoablation, eliminating TEE and employing CCTA-only strategy to rule-out LAAT improves electrophysiology laboratory efficiency without influencing periprocedural cost or increasing postprocedural stroke risk.
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Affiliation(s)
- Wassim Mosleh
- Division of Cardiology, Department of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Ali Sheikh
- Division of Cardiology, Department of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Zaid Said
- Division of Cardiology, Department of Medicine, University at Buffalo, Buffalo, NY, USA
| | | | - Siri Gadde
- Division of Cardiology, Department of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Tanvi Shah
- Division of Cardiology, Department of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Michael F Wilson
- Division of Cardiology, Department of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Hiroko Beck
- Division of Cardiology, Department of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Chee Kim
- Division of Cardiology, Department of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Umesh C Sharma
- Division of Cardiology, Department of Medicine, University at Buffalo, Buffalo, NY, USA
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