1
|
Lakkireddy DR, Wilber DJ, Mittal S, Tschopp D, Ellis CR, Rasekh A, Hounshell T, Evonich R, Chandhok S, Berger RD, Horton R, Hoskins MH, Calkins H, Yakubov SJ, Simons P, Saville BR, Lee RJ. Pulmonary Vein Isolation With or Without Left Atrial Appendage Ligation in Atrial Fibrillation: The aMAZE Randomized Clinical Trial. JAMA 2024; 331:1099-1108. [PMID: 38563835 PMCID: PMC10988350 DOI: 10.1001/jama.2024.3026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 02/21/2024] [Indexed: 04/04/2024]
Abstract
Importance Left atrial appendage elimination may improve catheter ablation outcomes for atrial fibrillation. Objective To assess the safety and effectiveness of percutaneous left atrial appendage ligation adjunctive to catheter pulmonary vein isolation for nonparoxysmal atrial fibrillation. Design, Setting, and Participants This multicenter, prospective, open-label, randomized clinical trial evaluated the safety and effectiveness of percutaneous left atrial appendage ligation adjunctive to planned pulmonary vein isolation for nonparoxysmal atrial fibrillation present for less than 3 years. Eligible patients were randomized in a 2:1 ratio to undergo left atrial appendage ligation and pulmonary vein isolation or pulmonary vein isolation alone. Use of a 2:1 randomization ratio was intended to provide more device experience and safety data. Patients were enrolled from October 2015 to December 2019 at 53 US sites, with the final follow-up visit on April 21, 2021. Interventions Left atrial appendage ligation plus pulmonary vein isolation compared with pulmonary vein isolation alone. Main Outcomes and Measures A bayesian adaptive analysis was used for primary end points. Primary effectiveness was freedom from documented atrial arrythmias of greater than 30 seconds duration 12 months after undergoing pulmonary vein isolation. Rhythm was assessed by Holter monitoring at 6 and 12 months after pulmonary vein isolation, symptomatic event monitoring, or any electrocardiographic tracing obtained through 12 months after pulmonary vein isolation. Primary safety was a composite of predefined serious adverse events compared with a prespecified 10% performance goal 30 days after the procedure. Left atrial appendage closure was evaluated through 12 months after pulmonary vein isolation. Results Overall, 404 patients were randomized to undergo left atrial appendage ligation plus pulmonary vein isolation and 206 were randomized to undergo pulmonary vein isolation alone. Primary effectiveness was 64.3% with left atrial appendage ligation and pulmonary vein isolation and 59.9% with pulmonary vein isolation only (difference, 4.3% [bayesian 95% credible interval, -4.2% to 13.2%]; posterior superiority probability, 0.835), which did not meet the statistical criterion to establish superiority (0.977). Primary safety was met, with a 30-day serious adverse event rate of 3.4% (bayesian 95% credible interval, 2.0% to 5.0%; posterior probability, 1.0) which was less than the prespecified threshold of 10%. At 12 months after pulmonary vein isolation, complete left atrial appendage closure (0 mm residual communication) was observed in 84% of patients and less than or equal to 5 mm residual communication was observed in 99% of patients. Conclusions and Relevance Percutaneous left atrial appendage ligation adjunctive to pulmonary vein isolation did not meet prespecified efficacy criteria for freedom from atrial arrhythmias at 12 months compared with pulmonary vein isolation alone for patients with nonparoxysmal atrial fibrillation, but met prespecified safety criteria and demonstrated high rates of closure at 12 months. Trial Registration ClinicalTrials.gov Identifier: NCT02513797.
Collapse
Affiliation(s)
| | - David J Wilber
- Loyola University Chicago Stritch School of Medicine, Maywood, Illinois
| | | | | | | | | | | | | | - Sheetal Chandhok
- Bryn Mawr Medical Specialists Association, Bryn Mawr, Pennsylvania
| | | | | | | | | | | | | | | | - Randall J Lee
- AtriCure, Inc, Mason, Ohio
- University of California, San Francisco
| |
Collapse
|
2
|
Segar MW, Marzec A, Razavi M, Mullins K, Molina-Razavi JE, Chatterjee S, Shafii AE, Cozart JR, Moon MR, Rasekh A, Saeed M. Incidence, Risk Score Performance, and In-Hospital Outcomes of Postoperative Atrial Fibrillation After Cardiac Surgery. Tex Heart Inst J 2023; 50:e238221. [PMID: 37885133 PMCID: PMC10658140 DOI: 10.14503/thij-23-8221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
BACKGROUND Postoperative atrial fibrillation (POAF) frequently complicates cardiac surgery. Predicting POAF can guide interventions to prevent its onset. This study assessed the incidence, risk factors, and related adverse outcomes of POAF after cardiac surgery. METHODS A cohort of 1,606 patients undergoing cardiac surgery at a tertiary referral center was analyzed. Postoperative AF was defined based on the Society of Thoracic Surgeons' criteria: AF/atrial flutter after operating room exit that either lasted longer than 1 hour or required medical or procedural intervention. Risk factors for POAF were evaluated, and the performance of established risk scores (POAF, HATCH, COM-AF, CHA2DS2-VASc, and Society of Thoracic Surgeons risk scores) in predicting POAF was assessed using discrimination (area under the receiver operator characteristics curve) analysis. The association of POAF with secondary outcomes, including length of hospital stay, ventilator time, and discharge to rehabilitation facilities, was evaluated using adjusted linear and logistic regression models. RESULTS The incidence of POAF was 32.2% (n = 517). Patients who developed POAF were older, had traditional cardiovascular risk factors and higher Society of Thoracic Surgeons risk scores, and often underwent valve surgery. The POAF risk score demonstrated the highest area under the receiver operator characteristics curve (0.65), but risk scores generally underperformed. Postoperative AF was associated with extended hospital stays, longer ventilator use, and higher likelihood of discharge to rehabilitation facilities (odds ratio, 2.30; 95% CI, 1.73-3.08). CONCLUSION This study observed a high incidence of POAF following cardiac surgery and its association with increased morbidity and resource utilization. Accurate POAF prediction remains elusive, emphasizing the need for better risk-prediction methods and tailored interventions to diminish the effect of POAF on patient outcomes.
Collapse
Affiliation(s)
- Matthew W. Segar
- Department of Cardiology, The Texas Heart Institute, Houston, Texas
| | - Alexander Marzec
- Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Mehdi Razavi
- Department of Cardiology, The Texas Heart Institute, Houston, Texas
| | - Karen Mullins
- Quality Cardiovascular Service Line, Baylor St Luke's Medical Center, Houston, Texas
| | | | - Subhasis Chatterjee
- Division of Cardiothoracic Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston, Texas
| | - Alexis E. Shafii
- Division of Cardiothoracic Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston, Texas
| | - Jennifer R. Cozart
- Division of Cardiothoracic Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston, Texas
| | - Marc R. Moon
- Division of Cardiothoracic Surgery, Baylor College of Medicine, Houston, Texas
- Department of Cardiovascular Surgery, The Texas Heart Institute, Houston, Texas
| | - Abdi Rasekh
- Department of Cardiology, The Texas Heart Institute, Houston, Texas
| | - Mohammad Saeed
- Department of Cardiology, The Texas Heart Institute, Houston, Texas
| |
Collapse
|
3
|
Segar MW, Zhang A, Paisley RD, Badjatiya A, Lambeth KD, Mullins K, Razavi M, Molina-Razavi JE, Rasekh A, Saeed M. Risk Stratification in Patients Who Underwent Percutaneous Left Atrial Appendage Occlusion. Am J Cardiol 2023; 200:50-56. [PMID: 37295180 DOI: 10.1016/j.amjcard.2023.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/04/2023] [Accepted: 05/13/2023] [Indexed: 06/12/2023]
Abstract
Left atrial appendage occlusion (LAAO) is effective in preventing thromboembolism. Risk stratification tools could help identify patients at risk for early mortality after LAAO. In this study, we validated and recalibrated a clinical risk score (CRS) to predict risk of all-cause mortality after LAAO. This study used data from patients who underwent LAAO in a single-center, tertiary hospital. A previously developed CRS using 5 variables (age, body mass index [BMI], diabetes, heart failure, and estimated glomerular filtration rate) was applied to each patient to assess risk of all-cause mortality at 1 and 2 years. The CRS was recalibrated to the present study cohort and compared with established atrial fibrillation-specific (CHA2DS2-VASc and HAS-BLED) and generalized (Walter index) risk scores. Cox proportional hazard models were used to assess the risk of mortality and discrimination was assessed by Harrel C-index. Among 223 patients, the 1- and 2-year mortality rates were 6.7% and 11.2%, respectively. With the original CRS, only low BMI (<23 kg/m2) was a significant predictor of all-cause mortality (hazard ratio [HR] [95% CI] 2.76 [1.03 to 7.35]; p = 0.04). With recalibration, BMI <29 kg/m2 and estimated glomerular filtration rate <60 ml/min/1.73 m2 were significantly associated with an increased risk of death (HR [95% CI] 3.24 [1.29 to 8.13] and 2.48 [1.07 to 5.74], respectively), with a trend toward significance noted for history of heart failure (HR [95% CI] 2.13 [0.97 to 4.67], p = 0.06). Recalibration improved the discriminative ability of the CRS from 0.65 to 0.70 and significantly outperformed established risk scores (CHA2DS2-VASc = 0.58, HAS-BLED = 0.55, Walter index = 0.62). In this single-center, observational study, the recalibrated CRS accurately risk stratified patients who underwent LAAO and significantly outperformed established atrial fibrillation-specific and generalized risk scores. In conclusion, clinical risk scores should be considered as an adjunct to standard of care when evaluating a patient's candidacy for LAAO.
Collapse
Affiliation(s)
- Matthew W Segar
- Department of Cardiology, Texas Heart Institute, Houston, Texas.
| | - Allan Zhang
- School of Medicine, Baylor College of Medicine, Houston, Texas
| | | | - Anish Badjatiya
- Department of Cardiology, Texas Heart Institute, Houston, Texas
| | - Kaleb D Lambeth
- Department of Cardiology, Texas Heart Institute, Houston, Texas
| | - Karen Mullins
- Quality CV Service Line, Baylor St. Luke's Medical Center, Houston, Texas
| | - Mehdi Razavi
- Department of Cardiology, Texas Heart Institute, Houston, Texas
| | | | - Abdi Rasekh
- Department of Cardiology, Texas Heart Institute, Houston, Texas
| | - Mohammad Saeed
- Department of Cardiology, Texas Heart Institute, Houston, Texas
| |
Collapse
|
4
|
Kim SE, Khawaja M, Kim JA, Safavi-Naeini P, Pickett J, Molina-Razavi J, Saeed M, Razavi M, Rasekh A, Chelu M. Detection of atrial fibrillation in real world setting in patients with cryptogenic stroke and an implantable loop recorder. Pacing Clin Electrophysiol 2023. [PMID: 37323035 DOI: 10.1111/pace.14757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/12/2023] [Accepted: 06/03/2023] [Indexed: 06/17/2023]
Abstract
INTRODUCTION Implantable loop recorders (ILR) are used to screen for atrial fibrillation (AF) in patients with cryptogenic stroke (CS). However, there is limited real-world data regarding the long-term rate of AF detection using ILR and management consequences in patients with CS. The objective is to assess the rate of AF detection in patients with CS in a real-world study over 36 months of follow-up and its consequences on stroke prevention. METHODS This retrospective study included patients with an ILR placed for CS at Baylor College of Medicine and Baylor St. Luke's Medical Center between January 2014 and July 2021. The primary outcome was AF detection in patients with ILR. The secondary outcome was the rate of subsequent strokes after ILR placement in patients with or without diagnosed AF. The AF detection rate in our cohort was compared to the rate in CRYSTAL-AF Trial at 36-month follow-up. The impact of AF detection on clinical management was examined. RESULTS We identified 225 patients. 51.1% were women and 38.2% African American. Among 85 patients with ILR labeled AF, 43 patients had true AF, and 42 had incorrectly labeled AF (48.3% false positive). The estimated AF detection rate at 36 months follow-up was 28.6% (95% CI, 26.6%-30.6%). 58.1% of patients with AF were initiated on oral anticoagulation, 80.0% of whom were started on a direct oral anticoagulant. 13.8% of patients had recurrent strokes after ILR implantation; 4 of whom were diagnosed with AF. CONCLUSION Compared to CRYSTAL-AF, the AF detection rate in our cohort is similar, but this cohort includes a higher proportion of female and African American patients. Most patients with recurrent strokes after ILR implant did not have AF during 36 months of monitoring.
Collapse
Affiliation(s)
- Seulgi Erica Kim
- Department of Internal Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Muzamil Khawaja
- Department of Internal Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Jitae Alex Kim
- Department of Internal Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Payam Safavi-Naeini
- Division of Cardiology, Baylor College of Medicine, Houston, Texas, USA
- Texas Heart Institute, Houston, Texas, USA
- St. Luke's Medical Center - CommonSpirit, Houston, Texas, USA
| | - June Pickett
- Division of Cardiology, Baylor College of Medicine, Houston, Texas, USA
| | - Joanna Molina-Razavi
- Division of Cardiology, Baylor College of Medicine, Houston, Texas, USA
- Texas Heart Institute, Houston, Texas, USA
- St. Luke's Medical Center - CommonSpirit, Houston, Texas, USA
| | - Mohammad Saeed
- Division of Cardiology, Baylor College of Medicine, Houston, Texas, USA
- Texas Heart Institute, Houston, Texas, USA
- St. Luke's Medical Center - CommonSpirit, Houston, Texas, USA
| | - Mehdi Razavi
- Division of Cardiology, Baylor College of Medicine, Houston, Texas, USA
- Texas Heart Institute, Houston, Texas, USA
- St. Luke's Medical Center - CommonSpirit, Houston, Texas, USA
| | - Abdi Rasekh
- Division of Cardiology, Baylor College of Medicine, Houston, Texas, USA
- Texas Heart Institute, Houston, Texas, USA
- St. Luke's Medical Center - CommonSpirit, Houston, Texas, USA
| | - Mihail Chelu
- Division of Cardiology, Baylor College of Medicine, Houston, Texas, USA
- Texas Heart Institute, Houston, Texas, USA
- St. Luke's Medical Center - CommonSpirit, Houston, Texas, USA
| |
Collapse
|
5
|
Post A, John MM, Buchan S, Bernard D, Rodriguez-Rivera G, Rasekh A, Cosgriff-Hernandez E, Razavi M. PO-709-08 CONDUCTIVE HYDROGELS FOR RF ENERGY DELIVERY: A NOVEL APPLICATION. Heart Rhythm 2022. [DOI: 10.1016/j.hrthm.2022.03.1115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
6
|
Safavi-Naeini P, Kim E, Molina Razavi JE, Saeed M, Rasekh A, Razavi M, Chelu MG. PO-693-03 ATRIAL FIBRILLATION IN CRYPTOGENIC STROKE: A REAL-WORLD STUDY WITH INSERTABLE CARDIAC MONITOR. Heart Rhythm 2022. [DOI: 10.1016/j.hrthm.2022.03.659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
7
|
Rasekh A, Shahbazi-Gahrouhi MR, Michaud JP. The transgenerational consequences of maternal parasitism for aphid life history and suitability for subsequent parasitism. Bull Entomol Res 2022; 112:51-57. [PMID: 34247659 DOI: 10.1017/s0007485321000547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Aphids parasitized in later instars can give birth to several nymphs before their reproduction is curtailed by the developing parasitoid. We examined the life histories of Aphis fabae Scopoli born to mothers parasitized by Lysiphlebus fabarum Marshall, and their suitability as subsequent hosts, to test the 'fecundity compensation' hypothesis. Maternal parasitism negatively impacted life history parameters, resulting in reduced estimates of population increase (rm, R0, and λ), and increased generation time (GT) and doubling time (DT). These impacts were greater when the larva developing in the mother turned out to be female rather than male, and greater still when mothers were superparasitized. Maternal parasitism produced aphids with shorter hind tibia (HTL), at birth and at maturity, but their developmental time was unaffected. Although female L. fabarum readily accepted such aphids for oviposition, rates of mummification and wasp emergence were lower, and more so when the maternal parasitoid was female. The resulting parasitoids took longer to develop than progeny from control wasps, had shorter HTLs, lower egg loads, smaller eggs, and produced fewer mummies with lower rates of adult emergence, all differences that were more pronounced when the maternal parasitoid was female. The progeny of these wasps exhibited similar impairments to these biological parameters as their parents, demonstrating that the negative impacts of development in maternally parasitized hosts extended for at least two generations. Thus, our results do not support fecundity compensation, but suggest that any benefits of post-parasitism reproduction will be offset by reduced fitness in both aphid progeny and the parasitoids that develop in them.
Collapse
Affiliation(s)
- A Rasekh
- Department of Plant Protection, College of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - M R Shahbazi-Gahrouhi
- Department of Plant Protection, College of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - J P Michaud
- Department of Entomology, Kansas State University, Agricultural Research Center-Hays, Hays, KS67601, USA
| |
Collapse
|
8
|
Huang S, Safavi-Naeini P, Rasekh A. Medical and Device Therapy for Stroke Prevention in Patients With Atrial Fibrillation. Tex Heart Inst J 2021; 48:472193. [PMID: 34669950 DOI: 10.14503/thij-21-7549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Sophia Huang
- Section of Cardiology, Baylor College of Medicine, Houston, Texas
| | | | - Abdi Rasekh
- Section of Cardiology, Baylor College of Medicine, Houston, Texas
| |
Collapse
|
9
|
Ganapathy AV, Nazeri A, Ashton J, Ganapathy KS, Safavi-Naeini P, Saeed M, Rasekh A, Razavi M. Contact-force recovery predicts the absence of cardiac perforation during steam pops. J Interv Card Electrophysiol 2020; 61:181-186. [DOI: 10.1007/s10840-020-00794-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/01/2020] [Indexed: 11/30/2022]
|
10
|
John M, Post A, Burkland DA, Greet BD, Chaisson J, Heberton GA, Saeed M, Rasekh A, Razavi M. Confirming pericardial access by using impedance measurements from a micropuncture needle. Pacing Clin Electrophysiol 2020; 43:593-601. [PMID: 32333406 DOI: 10.1111/pace.13927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 04/03/2020] [Accepted: 04/19/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Pericardial access is complicated by two difficulties: confirming when the needle tip is in the pericardial space, and avoiding complications during access, such as inadvertently puncturing other organs. Conventional imaging tools are inadequate for addressing these difficulties, as they lack soft-tissue markers that could be used as guidance during access. A system that can both confirm access and avoid inadvertent organ injury is needed. METHODS A 21G micropuncture needle was modified to include two small electrodes at the needle tip. With continuous bioimpedance monitoring from the electrodes, the needle was used to access the pericardium in porcine models (n = 4). The needle was also visualized in vivo by using an electroanatomical map (n = 2). Bioimpedance data from different tissues were analyzed retrospectively. RESULTS Bioimpedance data collected from the subcutaneous space (992.8 ± 13.1 Ω), anterior mediastinum (972.2 ± 14.2 Ω), pericardial space (323.2 ± 17.1 Ω), mid-myocardium (349.7 ± 87.6 Ω), right ventricular cavity (235.0 ± 9.7 Ω), lung (1142.0 ± 172.0 Ω), liver (575.0 ± 52.6 Ω), and blood (177.5 ± 1.9 Ω) differed significantly by tissue type (P < .01). Phase data in the frequency domain correlated well with the needle being in the pericardial space. A simple threshold analysis effectively separated lung (threshold = 1120.0 Ω) and blood (threshold = 305.9 Ω) tissues from the other tissue types. CONCLUSIONS Continuous bioimpedance monitoring from a modified micropuncture needle during pericardial access can be used to clearly differentiate tissues. Combined with traditional imaging modalities, this system allows for confirming access to the pericardial space while avoiding inadvertent puncture of other organs, creating a safer and more efficient needle-access procedure.
Collapse
Affiliation(s)
- Mathews John
- Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas
| | - Allison Post
- Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas
| | - David A Burkland
- Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas
| | - Brian D Greet
- Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas
| | - Jordan Chaisson
- Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas
| | - George A Heberton
- Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas
| | - Mohammad Saeed
- Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas
| | - Abdi Rasekh
- Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas
| | - Mehdi Razavi
- Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas
| |
Collapse
|
11
|
Hale ZD, Greet BD, Burkland DA, Greenberg S, Razavi M, Rasekh A, Molina Razavi JE, Saeed M. Slow-pathway visualization by using voltage-time relationship: A novel technique for identification and fluoroless ablation of atrioventricular nodal reentrant tachycardia. J Cardiovasc Electrophysiol 2020; 31:1430-1435. [PMID: 32270564 DOI: 10.1111/jce.14481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/19/2020] [Accepted: 03/24/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Atrioventricular nodal reentrant tachycardia (AVNRT) is treatable by catheter ablation. Advances in mapping-system technology permit fluoroless workflow during ablations. As national practice trends toward fluoroless approaches, easily obtained, reproducible methods of slow-pathway identification, and ablation become increasingly important. We present a novel method of slow-pathway identification and initial ablation results from this method. METHODS AND RESULTS We examined AVNRT ablations performed at our institution over a 12-month period. In these cases, the site of the slow pathway was predicted by latest activation in the inferior triangle of Koch during sinus rhythm. Ablation was performed in this region. Proximity of the predicted site to the successful ablation location, complication rates, and patient outcomes were recorded. Junctional rhythm was seen in 40/41 ablations (98%) at the predicted site (mean, 1.3 lesions and median, 1 lesion per case). One lesion was defined as 5 mm of ablation. The initial ablation was successful in 39/41 cases (95%); in two cases, greater or equal to 2 echo beats were detected after the initial ablation, necessitating further lesion expansion. In 8/41 cases (20%), greater than one lesion was placed during initial ablation before attempted reinduction. Complications included one transient heart block and one transient PR prolongation. During follow-up (median, day 51), one patient had lower-extremity deep-vein thrombosis and pulmonary embolus, and one had a lower-extremity superficial venous thrombosis. There was one tachycardia recurrence, which prompted a redo ablation. CONCLUSIONS Mapping-system detection of late-activation, low-amplitude voltage during sinus rhythm provides an objective, and fluoroless means of identifying the slow pathway in typical AVNRT.
Collapse
Affiliation(s)
- Zachary D Hale
- Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas.,Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas
| | - Brian D Greet
- Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas.,Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas.,Department of Cardiology, University of Texas, Houston, Texas
| | - David A Burkland
- Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas.,Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas.,Texas Cardiac Arrhythmia, Houston, Texas
| | - Scott Greenberg
- Department of Cardiology, Baylor College of Medicine, The Woodlands, Texas
| | - Mehdi Razavi
- Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas.,Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas
| | - Abdi Rasekh
- Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas.,Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas
| | - Joanna E Molina Razavi
- Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas.,Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas
| | - Mohammad Saeed
- Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, Texas.,Electrophysiology Clinical Research and Innovations, Texas Heart Institute, Houston, Texas
| |
Collapse
|
12
|
|
13
|
Abstract
Atrial fibrillation (AF) is the most common arrhythmia. Patients with AF have a higher risk for thromboembolism than individuals without AF. The left atrial appendage (LAA) is the main source of thromboembolism because of its anatomic, mechanical, and electrophysiologic properties, and accounts for more than 90% of thrombus formation in patients with AF. Advancement in imaging expands knowledge about anatomic and physiologic characteristics of LAA. The risk of thromboembolism events in patients with AF depends on clinical comorbidities and structural and physiologic parameters of atria, especially LAA. This article discusses AF-related thromboembolic events and the role of the LAA.
Collapse
Affiliation(s)
- Payam Safavi-Naeini
- Electrophysiology Clinical Research and Innovation, Texas Heart Institute, Houston, TX, USA
| | - Abdi Rasekh
- Cardiology, Baylor College of Medicine, 6624 Fannin Street Suite 2480, Houston, TX 77030, USA; Cardiology, Texas Heart Institute, Houston, TX, USA.
| |
Collapse
|
14
|
Parikh V, Rasekh A, Mohanty S, Yarlagadda B, Atkins D, Bommana S, Turagam M, Jeffery C, Carroll H, Nydegger C, Jaeger M, Dar T, Cheng J, Gopinnathanair R, Dibiase L, Lee R, Horton R, Natale A, Lakkireddy D. Exclusion of electrical and mechanical function of the left atrial appendage in patients with persistent atrial fibrillation: differences in efficacy and safety between endocardial ablation vs epicardial LARIAT ligation (the EXCLUDE LAA study). J Interv Card Electrophysiol 2019; 57:409-416. [DOI: 10.1007/s10840-019-00657-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 10/29/2019] [Indexed: 10/25/2022]
|
15
|
Parikh V, Bartus K, Litwinowicz R, Turagam MK, Sadowski J, Kapelak B, Bartus M, Podolec J, Brzezinski M, Musat D, Rasekh A, Mittal S, Cheng J, Badhwar N, Lee R, Lakkireddy D. Long‐term clinical outcomes from real‐world experience of left atrial appendage exclusion with LARIAT device. J Cardiovasc Electrophysiol 2019; 30:2849-2857. [DOI: 10.1111/jce.14229] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 09/05/2019] [Accepted: 10/06/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Valay Parikh
- Department of ElectrophysiologyBaptist Health System San Antonio Texas
| | - Krzysztof Bartus
- Department of Cardiovascular Surgery and Transplantology, John Paul II HospitalJagiellonian University Krakow Poland
| | - Radoslaw Litwinowicz
- Department of Cardiovascular Surgery and Transplantology, John Paul II HospitalJagiellonian University Krakow Poland
| | - Mohit K. Turagam
- Section of ElectrophysiologyIcahn School of Medicine at Mount Sinai New York
| | - Jerzy Sadowski
- Department of Cardiovascular Surgery and Transplantology, John Paul II HospitalJagiellonian University Krakow Poland
| | - Boguslaw Kapelak
- Department of Cardiovascular Surgery and Transplantology, John Paul II HospitalJagiellonian University Krakow Poland
| | | | - Jakub Podolec
- Department of Cardiovascular Surgery and Transplantology, John Paul II HospitalJagiellonian University Krakow Poland
| | | | - Dan Musat
- Section of ElectrophysiologyValley Health System Ridgewood New Jersey
| | - Abdi Rasekh
- Section of ElectrophysiologyTexas Heart Institute Houston Texas
| | - Suneet Mittal
- Section of ElectrophysiologyValley Health System Ridgewood New Jersey
| | - Jie Cheng
- Section of Electrophysiology, Baylor Medical CenterUniversity of Texas Houston Texas
| | - Nitish Badhwar
- Department of Medicine, Division of Cardiac ElectrophysiologyUniversity of California San Francisco San Francisco California
| | - Randall Lee
- Department of Medicine, Division of Cardiac ElectrophysiologyUniversity of California San Francisco San Francisco California
- Cardiovascular Research Institute, Institute for Regeneration MedicineUniversity of California San Francisco San Francisco California
| | | |
Collapse
|
16
|
Abstract
Abstract
Background/Introduction
Influenza remains a major risk to human health, estimated to result in 290,000 to 650,000 annual deaths worldwide. The association of influenza with coronary events is well established but influenza's impact on cardiac arrhythmias has received less attention.
Purpose
We investigated the effect of influenza on triggering supraventricular tachycardia (SVT).
Methods
This retrospective observational study included de-identified data from patients who had a Zio patch continuous cardiac monitoring from October 2012 to September 2017. The “influenza activity” was defined as the percentage of positive respiratory specimens that tested for influenza virus during each influenza season per reports from the Centers for Disease Control and Prevention. We included all SVT events from the weeks with the highest and lowest influenza activity up to two consecutive weeks after them. A paired t-test was used to compare the incidence of SVT episodes in weeks with the highest and lowest influenza activity.
Results
We reviewed records of 825869 patients (mean age, 61.06±15.31 years; 48.75% male); of these patients, 49984 had Zio patch during highest and lowest influenza activity time frame. The overall average episodes of SVT per person was 25% higher in the highest influenzas activity period comparing to the lowest activity (59.05 vs 47.26) and the higher incidence of SVT episodes in the highest influenza activity was significant (P value <0.01). A similar significant trend was observed during each individual influenza season.
Figure 1. average number of SVT episodes
Conclusion
High seasonal influenza activity is associated with increased odds of supraventricular tachycardia. Prospective studies are needed to determine the clinical implications of this finding.
Collapse
Affiliation(s)
| | - A Rasekh
- Baylor College of Medicine, Houston, United States of America
| | - M Razavi
- Baylor College of Medicine, Houston, United States of America
| | - M Madjid
- The University of Texas Medical School, Houston, United States of America
| |
Collapse
|
17
|
Turagam MK, Vuddanda V, Verberkmoes N, Ohtsuka T, Akca F, Atkins D, Bommana S, Emmert MY, Gopinathannair R, Dunnington G, Rasekh A, Cheng J, Salzberg S, Natale A, Cox J, Lakkireddy DR. Epicardial Left Atrial Appendage Exclusion Reduces Blood Pressure in Patients With Atrial Fibrillation and Hypertension. J Am Coll Cardiol 2019; 72:1346-1353. [PMID: 30213326 DOI: 10.1016/j.jacc.2018.06.066] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 06/22/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Percutaneous left atrial appendage exclusion (LAAE) has evolved as an alternative strategy for stroke prevention in atrial fibrillation (AF). Recent observational data have suggested that epicardial LAAE can have substantial impact on arrhythmia burden and hemodynamic profile. OBJECTIVES The authors aimed to study the impact of epicardial versus endocardial LAAE on systemic blood pressure in hypertensive AF patients. METHODS This was a prospective, nonrandomized study comparing 247 patients who underwent epicardial LAAE with 124 patients with endocardial exclusion. Clinical outcomes were measured at 3 months and 1 year. Primary outcome was improvement in systolic blood pressure (SBP) between both groups compared with baseline. Secondary outcome included changes in diastolic pressures (DBP), serum electrolytes, and creatinine. RESULTS There was no significant difference in baseline SBP between epicardial and endocardial groups. SBP was significantly lower in the epicardial group both at 3 months (122 ± 11.8 mm Hg vs. 129.7 ± 8.2 mm Hg; p < 0.001) and 1 year (123 ± 11.6 mm Hg vs. 132.2 ± 8.8 mm Hg; p < 0.001) compared with the endocardial group. An adjusted multivariate linear mixed effects model demonstrated that epicardial LAAE significantly decreased SBP by 7.4 mm Hg at 3 months and by 8.9 mm Hg at 1 year (p < 0.0001). There was a trend toward lower DBP with epicardial LAAE at 3 months by 1.3 mm Hg (p = 0.2) and at 1 year by 1.8 mm Hg (p = 0.09). There was no significant difference in serum electrolytes and creatinine between both groups. CONCLUSIONS In hypertensive AF patients, epicardial LAAE significantly decreases SBP both at 3 and 12 months compared with endocardial exclusion.
Collapse
Affiliation(s)
- Mohit K Turagam
- Department of Cardiology, Icahn School of Medicine at Mount Sinai, New York, New York
| | | | | | - Toshiya Ohtsuka
- Department of Cardiovascular Surgery, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Ferdi Akca
- Heart Center, Catharina Hospital, Eindhoven, the Netherlands
| | - Donita Atkins
- Kansas City Heart Rhythm Institute & Research Foundation, Overland Park, Kansas
| | - Sudharani Bommana
- Kansas City Heart Rhythm Institute & Research Foundation, Overland Park, Kansas
| | | | | | | | | | - Jie Cheng
- Texas Heart Institute, Houston, Texas
| | | | - Andrea Natale
- Texas Cardiac Arrhythmia Institute, Austin, Texas. https://twitter.com/andreanatalemd
| | - James Cox
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | | |
Collapse
|
18
|
Seyfollahi F, Esfandiari M, Mossadegh MS, Rasekh A. Functional Response of Hyperaspis polita (Coleoptera, Coccinellidae) to the Recently Invaded Mealybug Phenacoccus solenopsis (Hemiptera, Pseudococcidae). Neotrop Entomol 2019; 48:484-495. [PMID: 30635871 DOI: 10.1007/s13744-018-0666-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 12/11/2018] [Indexed: 06/09/2023]
Abstract
Hyperaspis polita Weise is the major predator of Phenacoccus solenopsis Tinsley in southwestern Iran. The functional response of fourth instar larva, adult female and male of the ladybird, H. polita, preying upon different stages of the mealybug P. solenopsis was evaluated. All stages of H. polita exhibited type II functional responses against all stages of P. solenopsis with an exception that the functional response of the adult female stage of H. polita to first instar P. solenopsis nymphs was type III. Changing prey and predator stages did not result in significant differences in attack rates. Handling times, however, differed for different prey and predator stages. This parameter was the shortest for any stage of predator fed on first instar P. solenopsis nymphs and was estimated to be 0.1100, 0.1868, and 0.2939 h for fourth instar larval stage, adult females and males, respectively. Also, the handling time was the shortest for the fourth instar larval stage followed by adult females and males to different prey stages. Maximum predation rate (T/Th) decreased as P. solenopsis developed from one life stage to another, the lowest estimated value being obtained by feeding on adult female mealybug and the fourth instar larval stage was the most predatory. According to these results, the feeding potential of H. polita is noticeable with the fourth larval instar stage being considered the most efficient predatory stage for use in biological control programs. Further field-based studies are needed, however, before a comprehensive estimation of the biocontrol abilities of H. polita toward P. solenopsis can be made.
Collapse
Affiliation(s)
- F Seyfollahi
- Dept of Plant Protection, Faculty of Agriculture, Shahid Chamran Univ of Ahvaz, Ahvaz, Iran
| | - M Esfandiari
- Dept of Plant Protection, Faculty of Agriculture, Shahid Chamran Univ of Ahvaz, Ahvaz, Iran.
| | - M S Mossadegh
- Dept of Plant Protection, Faculty of Agriculture, Shahid Chamran Univ of Ahvaz, Ahvaz, Iran
| | - A Rasekh
- Dept of Plant Protection, Faculty of Agriculture, Shahid Chamran Univ of Ahvaz, Ahvaz, Iran
| |
Collapse
|
19
|
Basu-Ray I, Sudhakar D, Schwing G, Monlezun D, Zhang L, Shah SK, Pujara D, Ting K, Rafeh NA, Ali G, Cassidy M, Ellenbogen K, Levine G, Lam W, Mathuria N, Saeed M, Bunch J, Martin-Schild S, Gold M, Aryana A, Razavi M, Rasekh A. Complex Left Atrial Appendage Morphology Is an Independent Risk Factor for Cryptogenic Ischemic Stroke. Front Cardiovasc Med 2018; 5:131. [PMID: 30460239 PMCID: PMC6232927 DOI: 10.3389/fcvm.2018.00131] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 09/04/2018] [Indexed: 11/13/2022] Open
Abstract
Importance: Ischemic strokes pose a significant health burden. However, the etiology of between 20 and 40% of these events remains unknown. Left atrial appendage morphology may influence the occurrence of thromboembolic events. Design: A retrospective cross-sectional study was conducted to investigate the role of LAA morphology in patients with atrial fibrillation (AF) and cardioembolic-associated stroke and patients with cryptogenic stroke without atrial fibrillation. LAA morphology is classified into two groups: (1) simple (chicken-wing) vs. (2) complex (non-chicken wing) based on transesophageal echocardiography (TEE) findings. In addition to the LAA morphology, left atrial parameters, including orifice diameter, depth, emptying velocity, and filling velocity, were collected for both groups. Mathematical, computational models were constructed to investigate flow velocities in chicken-wing and non-chicken wing morphological patterns to assess LAA function further. Findings: TEE values for volume, size, emptying, and filling velocities were similar between simple and complex LAA morphology groups. Patients with cryptogenic stroke without coexisting AF were noted to have significantly higher rates of complex LAA morphology. Chicken-wing LAA morphology was associated with four-fold higher flow rate (kg/s) in computational simulations. Conclusions: Complex LAA morphology may be an independent contributing factor for cryptogenic strokes. Further studies are warranted to investigate the mechanism involved in LAA morphology and thromboembolic events.
Collapse
Affiliation(s)
- Indranill Basu-Ray
- Texas Heart Institute, Houston, TX, United States.,St. Francis Hospital, Memphis, TN, United States
| | - Deepthi Sudhakar
- Department of Cardiology, Baylor College of Medicine, Houston, TX, United States
| | - Gregory Schwing
- Department of Cardiology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Dominique Monlezun
- Department of Cardiology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Lucy Zhang
- Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Sumit K Shah
- Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Deep Pujara
- Texas Heart Institute, Houston, TX, United States
| | - Kevin Ting
- Department of Cardiology, Baylor College of Medicine, Houston, TX, United States
| | - Nidal Abi Rafeh
- Department of Cardiology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Gholam Ali
- Department of Cardiology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Mark Cassidy
- Department of Cardiology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Kenneth Ellenbogen
- Division of Cardiology, Virginia Commonwealth University Medical Center, Richmond, VA, United States
| | - Glen Levine
- Department of Cardiology, Baylor College of Medicine, Houston, TX, United States
| | - Wilson Lam
- Department of Cardiology, Baylor College of Medicine, Houston, TX, United States
| | | | - Mohammad Saeed
- Department of Cardiology, Baylor College of Medicine, Houston, TX, United States
| | - Jared Bunch
- Intermountain Heart Rhythm Specialists, Murray, UT, United States
| | - Sheryl Martin-Schild
- Stroke Program, Department of Neurology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Michael Gold
- Department of Cardiology, Medical University of South Carolina, Charleston, SC, United States
| | - Arash Aryana
- Department of Cardiology and Cardiovascular Surgery, Mercy General Hospital, Dignity Health Heart and Vascular Institute, Sacramento, CA, United States
| | - Mehdi Razavi
- Texas Heart Institute, Houston, TX, United States
| | - Abdi Rasekh
- Texas Heart Institute, Houston, TX, United States
| |
Collapse
|
20
|
Parvizi Y, Rasekh A, Michaud JP. Cornicle secretions by Aphis fabae (Hemiptera: Aphididae) result in age-dependent costs and improved host suitability for Lysiphlebus fabarum (Marshall) (Hymenoptera: Braconidae). Bull Entomol Res 2018; 108:685-693. [PMID: 29198250 DOI: 10.1017/s0007485317001225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We examined the life history consequences of cornicle secretion by Aphis fabae Scopoli in second and fourth instars, and its effects on host suitability for its parasitoid, Lysiphlebus fabarum (Marshall). Cornicle secretion did not affect aphid fecundity, but secretion in the second instar enhanced life table parameters, whereas secretion in the fourth instar affected them negatively, suggesting a higher cost of secretion in later instars. Secretion in either instar improved host suitability for L. fabarum. Although control and treated aphids were parasitized at similar rates, and with similar success, wasps developed faster and emerged as larger adults in aphids that had secreted, regardless of instar. Transgenerational effects were also evident. Progeny emergence was higher when parental wasps developed in fourth instars than in seconds, whether aphids secreted or not, and progeny were larger when parental hosts secreted in the second instar, but not in the fourth. Secreting fourth instars were preferred to controls by L. fabarum females in choice tests, but not secreting second instars, and fourth-instar secretion improved wasp emergence. When control aphids were attacked, second instars were more likely to secrete than fourth instars, whereas the latter were more likely to kick the parasitoid. Cornicle secretion reduced the probability of subsequent secretion events and the frequency of other aphid defensive behaviors, indicating energetic tradeoffs among defensive tactics. Overall, our results revealed that cornicle secretion by immature A. fabae exacts both physiological and behavioral costs and results in improved host suitability for its parasitoid.
Collapse
Affiliation(s)
- Y Parvizi
- Department of Plant Protection,College of Agriculture,Shahid Chamran University of Ahvaz,Ahvaz,Iran
| | - A Rasekh
- Department of Plant Protection,College of Agriculture,Shahid Chamran University of Ahvaz,Ahvaz,Iran
| | - J P Michaud
- Department of Entomology,Agricultural Research Center-Hays,Kansas State University,1232 240th Ave,Hays,KS 67601,USA
| |
Collapse
|
21
|
|
22
|
Nowalk N, Kedia R, Mathuria N, Rasekh A, Lam W. RETROAORTIC ACCESSORY PATHWAY ABLATION IN SITUS INVERSUS DEXTROCARDIA WITH INTERRUPTED INFERIOR VENA CAVA. J Am Coll Cardiol 2018. [DOI: 10.1016/s0735-1097(18)33136-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
23
|
Turagam M, Atkins D, Earnest M, Lee R, Nath J, Ferrell R, Bartus K, Badhwar N, Rasekh A, Cheng J, Di Biase L, Natale A, Wilber D, Lakkireddy D. Anatomical and electrical remodeling with incomplete left atrial appendage ligation: Results from the LAALA-AF registry. J Cardiovasc Electrophysiol 2017; 28:1433-1442. [DOI: 10.1111/jce.13343] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/25/2017] [Accepted: 08/01/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Mohit Turagam
- Division of Cardiovascular Medicine; University of Missouri Hospital and Clinics; Columbia MO USA
| | - Donita Atkins
- Division of Cardiovascular Diseases, Cardiovascular Research Institute; University of Kansas Hospital & Medical Center; Kansas City KS USA
| | - Matthew Earnest
- Division of Cardiovascular Diseases, Cardiovascular Research Institute; University of Kansas Hospital & Medical Center; Kansas City KS USA
| | - Randall Lee
- Section of Electrophysiology; UCSF Medical Center; San Francisco CA USA
| | - Jayant Nath
- Division of Cardiovascular Diseases, Cardiovascular Research Institute; University of Kansas Hospital & Medical Center; Kansas City KS USA
| | - Ryan Ferrell
- Division of Cardiovascular Diseases, Cardiovascular Research Institute; University of Kansas Hospital & Medical Center; Kansas City KS USA
| | | | - Nitish Badhwar
- Section of Electrophysiology; UCSF Medical Center; San Francisco CA USA
| | - Abdi Rasekh
- Baylor St. Luke's Medical Center; Houston TX USA
| | - Jie Cheng
- Texas Heart Institute; Houston TX USA
| | - Luigi Di Biase
- St. David's Medical Center; Texas Cardiac Arrhythmia Institute; Austin TX USA
| | - Andrea Natale
- St. David's Medical Center; Texas Cardiac Arrhythmia Institute; Austin TX USA
| | - David Wilber
- Division of Cardiovascular Medicine; Loyola University Medical Center; Chicago IL USA
| | - Dhanunjaya Lakkireddy
- Division of Cardiovascular Diseases, Cardiovascular Research Institute; University of Kansas Hospital & Medical Center; Kansas City KS USA
| |
Collapse
|
24
|
Burkland DA, Ganapathy AV, John M, Greet BD, Saeed M, Rasekh A, Razavi M. Near-field impedance accurately distinguishes among pericardial, intracavitary, and anterior mediastinal position. J Cardiovasc Electrophysiol 2017; 28:1492-1499. [PMID: 28833720 DOI: 10.1111/jce.13325] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/27/2017] [Accepted: 08/09/2017] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Epicardial catheter ablation is increasingly used to treat arrhythmias with an epicardial component. Nevertheless, percutaneous epicardial access remains associated with a significant risk of major complications. Developing a technology capable of confirming proper placement within the pericardial space could decrease complication rates. The purpose of this study was to examine differences in bioimpedance among the pericardial space, anterior mediastinum, and right ventricle. METHODS An ovine model (n = 3) was used in this proof-of-concept study. A decapolar catheter was used to collect bipolar impedance readings; data were collected between each of five electrode pairs of varying distances. Data were collected from three test regions: the pericardial space, anterior mediastinum, and right ventricle. A control region in the inferior vena cava was used to normalize the data from the test regions. Analysis of variance was used to test for differences among regions. RESULTS A total of 10 impedance values were collected in each animal between each of the five electrode pairs in the three test regions (n = 340) and the control region (n = 145). The average normalized impedance values were significantly different among the pericardial space (1.760 ± 0.370), anterior mediastinum (3.209 ± 0.227), and right ventricle (1.024 ± 0.207; P < 0.0001). In post hoc testing, the differences between each pair of regions were significant, as well (P < 0.001 for all). CONCLUSION Impedance values are significantly different among these three anatomical compartments. Therefore, impedance can be potentially used as a means to guide percutaneous epicardial access.
Collapse
Affiliation(s)
- David A Burkland
- Department of Cardiology, Texas Heart Institute, Houston, TX, USA.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, TX, USA
| | - Anand V Ganapathy
- Department of Cardiology, Texas Heart Institute, Houston, TX, USA.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, TX, USA
| | - Mathews John
- Department of Cardiology, Texas Heart Institute, Houston, TX, USA
| | - Brian D Greet
- Department of Cardiology, Texas Heart Institute, Houston, TX, USA.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, TX, USA
| | - Mohammad Saeed
- Department of Cardiology, Texas Heart Institute, Houston, TX, USA.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, TX, USA
| | - Abdi Rasekh
- Department of Cardiology, Texas Heart Institute, Houston, TX, USA.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, TX, USA
| | - Mehdi Razavi
- Department of Cardiology, Texas Heart Institute, Houston, TX, USA.,Department of Internal Medicine, Section of Cardiology, Baylor College of Medicine, Houston, TX, USA
| |
Collapse
|
25
|
Naji Z, Rasekh A, Boone EL. Local influence in seemingly unrelated regression model with ridge estimate. J Appl Stat 2017. [DOI: 10.1080/02664763.2016.1247787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Z. Naji
- Department of Statistics, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - A. Rasekh
- Department of Statistics, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - E. L. Boone
- Department of Statistical Sciences & Operational Research, Virginia Commonwealth University, Richmond, VA, USA
| |
Collapse
|
26
|
Basu Ray I, Liu J, Jia X, Lam W, Nazeri A, Lopez A, Seger J, Giorgberidze I, Razavi M, Mathuria M, Rasekh A, Afsar H, Saeed M. 3878Subcutaneous versus transvenous implantable defibrillator therapy: A meta-analysis of case-control studies. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.3878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
27
|
Basu Ray I, Khalid K, Khan K, Monlezun D, Shanoon F, Lam W, Coulter S, Cheng J, Strickman N, Mathuria N, Giorgberidze I, Hamid A, Razavi M, Rasekh A, Saeed M. P3623Anti-arrhythmic effects seen with lariat is not associated with reverse remodeling. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
28
|
Husain Z, Safavi-Naeini P, Rasekh A, Razavi M, Collard CD, Anton JM, Tolpin DA. Anesthetic Management of Patients Undergoing Percutaneous Endocardial and Epicardial Left Atrial Appendage Occlusion. Semin Cardiothorac Vasc Anesth 2017. [DOI: 10.1177/1089253217714581] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Atrial fibrillation is the most common cardiac arrhythmia in adults affecting almost 6 million adults in the United States. The 2 most common comorbidities associated with atrial fibrillation are heart failure and thromboembolic events. Heart failure symptoms may be treated with rate control, antiarrhythmic medications or by catheter ablation. Unfortunately, despite optimal medical management, thromboembolic events still occur. Recently, there has been a great deal of interest and innovation in finding an alternative to chronic anticoagulation. Several percutaneous left atrial appendage occlusion devices have been developed over recent years, some of which have proven to be noninferior to anticoagulation in preventing strokes in atrial fibrillation patients. The 2 most widely used left atrial appendage occlusion devices are the WATCHMAN (Atritech Inc, Plymouth, MN, USA) and the LARIAT (SentreHEART, Palo Alto, CA, USA) devices. After a detailed description of the procedures, the anesthetic considerations of each procedure and management of specific adverse events are discussed within this review.
Collapse
|
29
|
Akandeh M, Soufbaf M, Kocheili F, Rasekh A. Gamma irradiation on canola seeds affects herbivore-plant and host-parasitoid interactions. Neotrop Entomol 2017; 46:256-263. [PMID: 27838875 DOI: 10.1007/s13744-016-0460-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 10/21/2016] [Indexed: 06/06/2023]
Abstract
As an agricultural modernization, gamma irradiation is an important method for enhancing crop yield and quality. Nevertheless, its use can alter other plant traits such as nutrition and resistance to different biotic/abiotic stresses that consequently affect plant-insect interactions. A tritrophic system was utilized based on two canola mutant lines produced through gamma irradiation (RGS 8-1 and Talaye 8-3). Plutella xylostella (L.), as a worldwide pest of Brassicaceae and Cotesia vestalis (Holiday) as a key biocontrol agent of P. xylostella were examined for the potential indirect effects of canola seed irradiation on the experimental insects' performance when acting on the respective mutant lines. This study showed that physical mutation did not affect plant nitrogen and herbivore-damaged total phenolics; however, phenolic compounds showed greater concentration in damaged leaves than undamaged leaves of both mutant and control plants. The relative growth rate and pupal weight of P. xylostella reared on RGS 8-1 were significantly higher than those reared on the control RGS. There was no significant difference by performance parameters of the parasitoid, C. vestalis, including total pre-oviposition period, adult longevity, adult fresh body weight of males and females, pupal weight, forewing area, and total longevity of both sexes on tested canola cultivars in comparison with their mutant lines. Life table parameters of C. vestalis on mutant lines of both cultivars, RGS and Talaye, were not significantly different from their control treatments. Comprehensive studies should be conducted to find out the mechanisms under which gamma rays affect plant-insect interactions.
Collapse
Affiliation(s)
- M Akandeh
- Dept of Entomology, Faculty of Agriculture, Shahid Chamran Univ of Ahvaz, Ahvaz, Iran
| | - M Soufbaf
- Agricultural, Medical and Industrial Research School, P. O. Box 31485/498, Karaj, Iran.
| | - F Kocheili
- Dept of Entomology, Faculty of Agriculture, Shahid Chamran Univ of Ahvaz, Ahvaz, Iran
| | - A Rasekh
- Dept of Entomology, Faculty of Agriculture, Shahid Chamran Univ of Ahvaz, Ahvaz, Iran
| |
Collapse
|
30
|
Babadi B, Rasekh A, Zare K, Rasekhi AA. A variance shift model for detection of outliers in the linear mixed measurement error models. COMMUN STAT-THEOR M 2016. [DOI: 10.1080/03610926.2014.980517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
31
|
Badhwar N, Mittal S, Rasekh A, Vasaiwala S, Musat D, S.Naeini P, Fang Q, Nentwich K, Deneke T, Chang J, Lakkireddy D, Wilber D, Lee RJ. Conversion of persistent atrial fibrillation to sinus rhythm after LAA ligation with the LARIAT device. Int J Cardiol 2016; 225:120-122. [DOI: 10.1016/j.ijcard.2016.09.099] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 09/25/2016] [Indexed: 10/20/2022]
|
32
|
|
33
|
Safavi-Naeini P, Zafar-Awan D, Zhu H, Zablah G, Ganapathy AV, Rasekh A, Saeed M, Razavi JEM, Razavi M. Accuracy of Voltage Signal Measurement During Radiofrequency Delivery Through the SMARTTOUCH Catheter. J Cardiovasc Electrophysiol 2016; 28:51-55. [PMID: 27762474 DOI: 10.1111/jce.13113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 10/10/2016] [Accepted: 10/17/2016] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Current methods for measuring voltage during radiofrequency (RF) ablation (RFA) necessitate turning off the ablation catheter. If voltage could be accurately read without signal attenuation during RFA, turning off the catheter would be unnecessary, allowing continuous ablation. We evaluated the accuracy of the Thermocool SMARTTOUCH catheter for measuring voltage while RF traverses the catheter. METHODS AND RESULTS We studied 26 patients undergoing RFA for arrhythmias. A 7.5F SMARTTOUCH catheter was used for sensing voltage and performing RFA. Data were collected from the Carto-3 3-dimensional mapping system. Voltages were measured during ablation (RF-ON) and immediately before or after ablation (RF-OFF). In evaluating the accuracy of RF-ON measurements, we utilized the RF-OFF measure as the gold standard. We measured 465 voltage signals. The median values were 0.2900 and 0.3100 for RF-ON and RF-OFF, respectively. Wilcoxon signed rank testing showed no significant difference in these values (P = 0.608). The intraclass correlation coefficient (ICC) was 0.96, indicating that voltage measurements were similarly accurate during RF-OFF versus RF-ON. Five patients had baseline atrial fibrillation (AF), for whom 82 ablation points were measured; 383 additional ablation points were measured for the remaining patients. The voltages measured during RF-ON versus RF-OFF were similar in the presence of AF (P = 0.800) versus non-AF rhythm (P = 0.456) (ICC, 0.96 for both). CONCLUSION Voltage signal measurement was similarly accurate during RF-ON versus RF-OFF independent of baseline rhythm. Physicians should consider not turning off the SMARTTOUCH ablation catheter when measuring voltage during RFA.
Collapse
Affiliation(s)
- Payam Safavi-Naeini
- Department of Cardiology, Texas Heart Institute, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Dreema Zafar-Awan
- Department of Medicine, Section of Cardiology, Baylor College of Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Hongjian Zhu
- Department of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Gerardo Zablah
- Department of Internal Medicine, Jackson Memorial Hospital, University of Miami, Florida, USA
| | - Anand V Ganapathy
- Department of Cardiology, Texas Heart Institute, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Abdi Rasekh
- Department of Medicine, Section of Cardiology, Baylor College of Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Mohammad Saeed
- Department of Medicine, Section of Cardiology, Baylor College of Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Joanna Esther Molina Razavi
- Department of Medicine, Section of Cardiology, Baylor College of Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Mehdi Razavi
- Department of Cardiology, Texas Heart Institute, University of Texas Health Science Center at Houston, Houston, Texas, USA.,Department of Medicine, Section of Cardiology, Baylor College of Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| |
Collapse
|
34
|
|
35
|
Lakkireddy D, Afzal MR, Lee RJ, Nagaraj H, Tschopp D, Gidney B, Ellis C, Altman E, Lee B, Kar S, Bhadwar N, Sanchez M, Gadiyaram V, Evonich R, Rasekh A, Cheng J, Cuoco F, Chandhok S, Gunda S, Reddy M, Atkins D, Bommana S, Cuculich P, Gibson D, Nath J, Ferrell R, Matthew E, Wilber D. Short and long-term outcomes of percutaneous left atrial appendage suture ligation: Results from a US multicenter evaluation. Heart Rhythm 2016; 13:1030-1036. [DOI: 10.1016/j.hrthm.2016.01.022] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Indexed: 10/22/2022]
|
36
|
Afzal MR, Lee R, Nagaraj H, Tschopp D, Gidney B, Ellis C, Kar S, Gadiyaram V, Evonich R, Rasekh A, Cheng J, Cuoco F, Chandhok S, Gunda S, Iskandar S, Reddy M, Atkins D, Bommana S, Cuculich P, Gibson D, Nath J, Earnest M, Wilber D, Lakkireddy D. EXPERIENCE OF PERCUTANEOUS LEFT ATRIAL APPENDAGE SUTURE LIGATION: RESULTS FROM A UNITED STATES MULTICENTER EVALUATION. J Am Coll Cardiol 2016. [DOI: 10.1016/s0735-1097(16)30719-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
37
|
Gunda S, Reddy M, Nath J, Nagaraj H, Atoui M, Rasekh A, Ellis CR, Badhwar N, Lee RJ, DI Biase L, Mansour M, Ruskin JN, Natale A, Earnest M, Lakkireddy DR. Impact of Periprocedural Colchicine on Postprocedural Management in Patients Undergoing a Left Atrial Appendage Ligation Using LARIAT. J Cardiovasc Electrophysiol 2015; 27:60-4. [PMID: 26515657 DOI: 10.1111/jce.12869] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/27/2015] [Accepted: 09/01/2015] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Left atrial appendage (LAA) can be effectively and safely excluded using a novel percutaneous LARIAT ligation system. However, due to pericardial catheter manipulation and LAA ligation and subsequent necrosis, postprocedural course is complicated by pericarditis. We intended to evaluate the preprocedural use of colchicine on the incidence of postprocedural pericardial complications. METHODS AND RESULTS In this multicenter observational study, we included all consecutive patients who underwent LARIAT procedure at the participating centers. Many patients received periprocedural colchicine at the discretion of the physician. We compared the postprocedural outcomes of patients who received prophylactic periprocedural colchicine (colchicine group) with those who did not receive colchicine (standard group). A total of 344 consecutive patients, 243 in the "colchicine group" and 101 in the "standard group," were included. The mean age, median CHADS2VASc score, and HASBLED scores were 70 ± 11 years, 3 ± 1.7, and 3 ± 1.1, respectively. There were no significant differences in major baseline characteristics between the two groups. Severe pericarditis was significantly lower in the "colchicine group" compared to the "standard group" (10 [4%] vs. 16 [16%] P<0.0001). The colchicine group, compared to the standard group, had lesser pericardial drain output (186 ± 84 mL vs. 351 ± 83, P<0.001), shorter pericardial drain duration (16 ± 4 vs. 23 ± 19 hours, P<0.04), and similar incidence of delayed pericardial effusion (4 [1.6%] to 3 [3%], P = 0.42) when compared to the standard group. CONCLUSION Use of colchicine periprocedurally was associated with significant reduction in postprocedural pericarditis and associated complications.
Collapse
Affiliation(s)
- Sampath Gunda
- University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Madhu Reddy
- University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Jayant Nath
- University of Kansas Medical Center, Kansas City, Kansas, USA
| | | | - Moustapha Atoui
- University of Kansas Medical Center, Kansas City, Kansas, USA
| | | | | | - Nitish Badhwar
- University of California, San Francisco, California, USA
| | - Randall J Lee
- University of California, San Francisco, California, USA
| | - Luigi DI Biase
- Texas Cardiac Arrhythmia Institute at St. David's Medical Center and Albert Einstein College of Medicine at Montefiore Hospital, Austin, Texas, USA
| | - Moussa Mansour
- Massachusetts General Hospital, Boston, Massachusetts, USA
| | | | - Andrea Natale
- Texas Cardiac Arrhythmia Institute, Austin, Texas, USA
| | - Matthew Earnest
- University of Kansas Medical Center, Kansas City, Kansas, USA
| | | |
Collapse
|
38
|
Sievert H, Rasekh A, Bartus K, Morelli RL, Fang Q, Kuropka J, Le D, Gafoor S, Heuer L, Safavi-Naeini P, Hue TF, Marcus GM, Badhwar N, Massumi A, Lee RJ. Left Atrial Appendage Ligation in Nonvalvular Atrial Fibrillation Patients at High Risk for Embolic Events With Ineligibility for Oral Anticoagulation. JACC Clin Electrophysiol 2015; 1:465-474. [DOI: 10.1016/j.jacep.2015.08.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 08/06/2015] [Accepted: 08/27/2015] [Indexed: 10/22/2022]
|
39
|
Naeini PS, Rasekh A. A Review Of Clinical Trials On LARIAT Device. J Atr Fibrillation 2015; 8:1317. [PMID: 27957212 DOI: 10.4022/jafib.1317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 09/09/2015] [Accepted: 09/27/2015] [Indexed: 11/10/2022]
Abstract
The risk of embolic stroke is 5 times higher among patients with atrial fibrillation (AF) compared with those without AF. More than 90% of thrombi form in the left atrial appendage (LAA) in AF. The purpose of this review is to determine the efficacy and safety of the left atrial appendage (LAA) closure via a percutaneous LAA ligation approach, thus preventing a stroke among patients with AF and contraindication to oral anticoagulant therapy.
Collapse
Affiliation(s)
- Payam Safavi Naeini
- Department Of Cardiology (Drs.Abdi Rasekh And Safavi-Naeini), Texas Heart Insitute. Department Of Cardiology (Dr.Abdi Rasekh), Baylor College Of Medicine, Houston, Texas
| | - Abdi Rasekh
- Department Of Cardiology (Drs.Abdi Rasekh And Safavi-Naeini), Texas Heart Insitute. Department Of Cardiology (Dr.Abdi Rasekh), Baylor College Of Medicine, Houston, Texas
| |
Collapse
|
40
|
Gunda S, Reddy M, Pillarisetti J, Atoui M, Badhwar N, Swarup V, DiBiase L, Mohanty S, Mohanty P, Nagaraj H, Ellis C, Rasekh A, Cheng J, Bartus K, Lee R, Natale A, Lakkireddy D. Differences in Complication Rates Between Large Bore Needle and a Long Micropuncture Needle During Epicardial Access. Circ Arrhythm Electrophysiol 2015; 8:890-5. [DOI: 10.1161/circep.115.002921] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 06/05/2015] [Indexed: 11/16/2022]
Affiliation(s)
- Sampath Gunda
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Madhu Reddy
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Jayasree Pillarisetti
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Moustapha Atoui
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Nitish Badhwar
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Vijay Swarup
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Luigi DiBiase
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Sanghamitra Mohanty
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Prashanth Mohanty
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Hosakote Nagaraj
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Christopher Ellis
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Abdi Rasekh
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Jie Cheng
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Krzysztof Bartus
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Randall Lee
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Andrea Natale
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| | - Dhanunjaya Lakkireddy
- From the Department of Cardiology, Mid-America Cardiology and University of Kansas Medical Center, Kansas City (S.G., M.R., J.P., M.A., D.L.); Department of Cardiology, University of California, San Francisco (N.B., R.L.); Department of Cardiology, Arizona Heart Rhythm Center, Phoenix (V.S.); Department of Cardiology, Montefiore Medical Center, Bronx, NY (L.D.); Department of Cardiology, Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin (S.M., P.M., A.N.); Nebraska Heart
| |
Collapse
|
41
|
Lakkireddy D, Vallakati A, Kanmanthareddy A, Feldman T, Gibson D, Price M, Rubenson DS, Cheng J, Valderrábano M, Fernando RR, Laing ST, Chung E, Bommana S, Atkins D, Pillarisetti J, Knight BP, Evonich R, Rasekh A, Gray J, Sridhar AM, Earnest M, Ferrell R, Nath J, Reddy YM. Left atrial thrombus formation after successful left atrial appendage ligation: case series from a nationwide survey. J Am Coll Cardiol 2015; 65:1595-6. [PMID: 25881942 DOI: 10.1016/j.jacc.2015.01.052] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 01/25/2015] [Accepted: 01/27/2015] [Indexed: 10/23/2022]
|
42
|
Willerson JT, Cooley DA, Rasekh A, Hall RJ. In Memoriam: Ali Massumi, MD (1945–2015). Tex Heart Inst J 2015; 42:191-2. [DOI: 10.14503/thij-15-5296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- James T. Willerson
- President, Texas Heart Institute; and Editor-in-Chief, Texas Heart Institute Journal
| | - Denton A. Cooley
- Former Surgeon-in-Chief, Texas Heart Institute; and President Emeritus, Texas Heart Institute
| | - Abdi Rasekh
- Clinical Associate Professor, Baylor College of Medicine
| | - Robert J. Hall
- Former Medical Director, Texas Heart Institute; and Former Editor-in-Chief, Texas Heart Institute Journal
| |
Collapse
|
43
|
Lakkireddy D, Sridhar Mahankali A, Kanmanthareddy A, Lee R, Badhwar N, Bartus K, Atkins D, Bommana S, Cheng J, Rasekh A, Di Biase L, Natale A, Nath J, Ferrell R, Earnest M, Reddy YM. Left Atrial Appendage Ligation and Ablation for Persistent Atrial Fibrillation. JACC Clin Electrophysiol 2015; 1:153-160. [DOI: 10.1016/j.jacep.2015.04.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 04/13/2015] [Accepted: 04/16/2015] [Indexed: 10/23/2022]
|
44
|
Safavi-Naeini P, Razavi M, Saeed M, Rasekh A, Massumi A. A Review of the LARIAT Suture Delivery Device for Left Atrial Appendage Closure. J Tehran Heart Cent 2015; 10:69-73. [PMID: 26110004 PMCID: PMC4477089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 01/12/2015] [Indexed: 11/16/2022] Open
Abstract
The prevalence of atrial fibrillation (AF) is 1-2 % in the general population, and the risk of embolic stroke in AF patients is 4-5 times higher than that in the general population. AF-related strokes are often severe, and the rate of permanent disability is much higher among individuals who have AF-related strokes than in those who have strokes unrelated to AF. In patients with AF, more than 90 % of thrombi originate from the left atrial appendage (LAA). The purpose of this paper is to review the efficacy and safety of performing the LAA closure with the LARIAT Suture Delivery Device to prevent AF-related stroke in patients with contraindications to oral anticoagulant therapy.
Collapse
Affiliation(s)
| | | | | | - Abdi Rasekh
- Corresponding Author: Abdi Rasekh, 6624 Fannin Street, Suite 2480, Houston, TX 77030 USA. Tel: +1 713 5295530. Fax: +1 832 2018121.
| | | |
Collapse
|
45
|
Safavi-Naeini P, Rasekh A, Razavi M, Saeed M, Massumi A. Sudden Cardiac Death in Coronary Artery Disease. Coron Artery Dis 2015. [DOI: 10.1007/978-1-4471-2828-1_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
46
|
Afzal MR, Kanmanthareddy A, Earnest M, Reddy M, Atkins D, Bommana S, Bartus K, Rasekh A, Han F, Badhwar N, Cheng J, Dibiase L, Ellis CR, Dawn B, Natale A, Lee RJ, Lakkireddy D. Impact of left atrial appendage exclusion using an epicardial ligation system (LARIAT) on atrial fibrillation burden in patients with cardiac implantable electronic devices. Heart Rhythm 2015; 12:52-9. [DOI: 10.1016/j.hrthm.2014.09.053] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Indexed: 11/25/2022]
|
47
|
Hummel J, Michaud G, Hoyt R, DeLurgio D, Rasekh A, Kusumoto F, Giudici M, Dan D, Tschopp D, Calkins H, Boersma L. Phased RF ablation in persistent atrial fibrillation. Heart Rhythm 2014; 11:202-9. [DOI: 10.1016/j.hrthm.2013.11.009] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Indexed: 11/26/2022]
|
48
|
Nazeri A, Constantine G, Rasekh A, Massumi A, Saeed M, Massumi M, Raz S, Razavi M. Contact-force rebound, but not its absolute value, may enable differentiation between steam pops with and without cardiac perforation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p2333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
49
|
Massumi A, Chelu MG, Nazeri A, May SA, Afshar-Kharaghan H, Saeed M, Razavi M, Rasekh A. Initial experience with a novel percutaneous left atrial appendage exclusion device in patients with atrial fibrillation, increased stroke risk, and contraindications to anticoagulation. Am J Cardiol 2013; 111:869-73. [PMID: 23312129 DOI: 10.1016/j.amjcard.2012.11.061] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 11/29/2012] [Accepted: 11/29/2012] [Indexed: 12/30/2022]
Abstract
Atrial fibrillation (AF) increases by fivefold a patient's risk for thromboembolic stroke. The main source of emboli in AF is the left atrial appendage (LAA). Therefore, LAA closure could reduce the risk for thromboembolic events in AF. The investigators report the first United States experience with a novel percutaneous LAA closure device, the Lariat snare device, and its outcomes in 21 patients with AF, CHADS2 scores ≥2, and contraindications to anticoagulation. The LAA was closed with a snare containing suture from within the pericardial space. The intraoperative success of the procedure was confirmed by left atrial angiography and transesophageal echocardiographic color Doppler flow. The effectiveness of the procedure was evaluated by follow-up transesophageal echocardiography. The incidence of periprocedural and short-term complications was assessed by reviewing medical records. Twenty patients (100%) had successful LAA exclusion that was preserved at 96 ± 77 days. No patient had a stroke during an average of 352 ± 143 days of follow-up. One patient had right ventricular perforation and tamponade that required surgical exploration and repair. Two patients required prolonged hospitalization: 1 because of pericardial effusion that required repeat pericardiocentesis and 1 because of noncardiac co-morbidities. Three patients developed pericarditis <1 month after the procedure, of whom 1 had associated pericardial effusion that required drainage. In conclusion, percutaneous LAA exclusion can be achieved successfully and with an acceptable incidence of periprocedural and short-term complications. Further studies are needed to determine whether LAA exclusion lowers the long-term risk for thromboembolic events in patients with AF and contraindications to anticoagulation.
Collapse
|
50
|
Satya K, Kalife G, Navarijo J, Rasekh A, Wilson JM. Transseptal biopsy of a left atrial mass with 3-dimensional transesophageal echocardiographic guidance. Tex Heart Inst J 2012; 39:707-710. [PMID: 23109774 PMCID: PMC3461650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A 31-year-old man presented with a large cardiac mass that originated from the basal posterior left atrial wall and occupied most of the dilated atrium. Minimally invasive studies yielded inconclusive results, but the patient was considered at high risk for an open cardiac biopsy due to the size of the mass. To establish a tissue diagnosis for definitive treatment, we performed a transseptal cardiac biopsy guided by 3-dimensional transesophageal echocardiography. We thereby determined that the mass was a primary left atrial sarcoma. To the best of our knowledge, this is the first report concerning the use of 3-dimensional transesophageal echocardiography for biopsy of a left atrial mass.
Collapse
Affiliation(s)
- Kumar Satya
- Department of Cardiology, Texas Heart Institute at St Luke's Episcopal Hospital, Houston, Texas 77030, USA
| | | | | | | | | |
Collapse
|