20 results on '"Langan N"'
Search Results
2. Are Environmental Factors for Atopic Eczema in ISAAC Phase Three due to Reverse Causation?
- Author
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Charlotte E. Rutter, Richard J. Silverwood, Hywel C. Williams, Philippa Ellwood, Innes Asher, Luis Garcia-Marcos, David P. Strachan, Neil Pearce, Sinéad M. Langan, N. Aït-Khaled, H.R. Anderson, M.I. Asher, R. Beasley, B. Björkstén, B. Brunekreef, J. Crane, P. Ellwood, C. Flohr, S. Foliaki, F. Forastiere, L. García-Marcos, U. Keil, C.K.W. Lai, J. Mallol, E.A. Mitchell, S. Montefort, J. Odhiamb
- Published
- 2019
- Full Text
- View/download PDF
3. Psychological, behavioral, and family characteristics of pediatric patients with chronic pain: a 1-year retrospective study and cluster analysis
- Author
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Scharff, L., Langan, N., and Rotter, N.
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Chronic pain -- Demographic aspects ,Chronic pain -- Surveys ,Health - Published
- 2006
4. Do transesophageal echocardiographic parameters of left atrial and appendageal mechanics determine ease of electrical cardioversion: When is big too big?
- Author
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Vorchheimer, D., Baruch, L., Pollano, F., Rosen, S., Mehta, D., Fisher, E., Langan, N., Gomes, A., DePeralta, E., Pe, E., Budd, J., and Goldman, M.
- Published
- 1995
- Full Text
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5. Functional impairment and quality of life in newly diagnosed adults attending a tertiary ADHD clinic in Ireland.
- Author
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Adamis D, West S, Singh J, Hanley L, Coada I, McCarthy G, Langan N, Gavin B, and McNicholas F
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- Humans, Female, Male, Adult, Ireland, Middle Aged, Surveys and Questionnaires, Young Adult, Tertiary Care Centers, Quality of Life, Attention Deficit Disorder with Hyperactivity psychology
- Abstract
Background: Attention Deficit-Hyperactive Disorder (ADHD) is a neurodevelopmental disorder, often persisting into adulthood., Aims: To investigate the levels of functionality and quality of life (QoL) in adult patients newly diagnosed with ADHD and to compare with those without an ADHD diagnosis., Methods: Consecutive patients who were referred to and assessed in a tertiary adult ADHD clinic enrolled in the study. Diagnosis of ADHD was based on DSM-5 criteria. Functionality was measured using the Weiss Functional Impairment Rating Scale (WFIRS) and the Global Assessment of Functioning Scale (GAF). QoL was assessed with the Adult ADHD Quality of Life Questionnaire (AAQoL)., Results: Three-hundred and forty participants were recruited, 177 (52.1%) females. Of them 293 (86.2%) were newly diagnosed with ADHD. Those with ADHD had significant lower functionality as it was measured with the WFIRS and GAF, and worse QoL (AAQoL) compared to those without. In addition, a significant correlation between GAF and WFIRS was found., Conclusions: The results show that adults with ADHD have decreased functionality and worse QoL when compared against those presenting with a similar symptomatology, but no ADHD diagnosis. ADHD is not just a behavioural disorder in childhood, but a lifelong condition with accumulating problems that can lead to lower QoL and impaired functioning throughout adulthood., (© 2024. The Author(s).)
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- 2024
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6. Barriers and financial impact of same-day discharge after atrial fibrillation ablation.
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Chu E, Zhang C, Musikantow DR, Turagam MK, Langan N, Sofi A, Choudry S, Syros G, Miller MA, Koruth JS, Whang W, Dukkipati SR, and Reddy VY
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- Female, Humans, Male, Middle Aged, Patient Selection, Retrospective Studies, Ambulatory Care economics, Atrial Fibrillation surgery, Catheter Ablation methods, Length of Stay economics, Patient Discharge economics
- Abstract
Background: Same-day discharge (SDD) after atrial fibrillation (AF) ablation is increasingly being considered. This study examined the barriers and financial impact associated with SDD in a contemporary cohort of patients undergoing elective AF ablation., Methods: A single center retrospective review was conducted of the 249 first case-of-the-day outpatient AF ablations performed in 2019 to evaluate the proportion of patients that could have undergone SDD. Barriers to SDD were defined as any intervention that prevented SDD by 8 p.m. The financial impact of SDD was based on savings from avoidance of the overnight hospital stay and revenue related to management of chest pain facilitated by a vacant hospital bed., Results: SDD could have occurred in 157 patients (63%) without change in management and in up to 200 patients (80%) if avoidable barriers were addressed. Barriers to SDD included non-clinical logistical issues (43%), prolonged post-procedure recovery (42%) and minor procedural complications (15%). On multivariate analysis, factors associated with barriers to SDD included increasing age (P = .01), left ventricular ejection fraction ≤ 35% (P = .04), and severely dilated left atrium (P = .04). The financial gain from SDD would have ranged from $1,110,096 (assuming discharge of 63% of eligible patients) to $1,480,128 (assuming 80% discharge) over the course of a year., Conclusions: Up to 80% of patients undergoing outpatient AF ablation were amenable to SDD if avoidable delays in care had been anticipated. Based on reduced hospital operating expenses and increased revenue from management of individuals with chest pain, this would translate to a financial savings of ∼$1.5 million., (© 2021 Wiley Periodicals LLC.)
- Published
- 2021
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7. Malignant Arrhythmias in Patients With COVID-19: Incidence, Mechanisms, and Outcomes.
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Turagam MK, Musikantow D, Goldman ME, Bassily-Marcus A, Chu E, Shivamurthy P, Lampert J, Kawamura I, Bokhari M, Whang W, Bier BA, Malick W, Hashemi H, Miller MA, Choudry S, Pumill C, Ruiz-Maya T, Hadley M, Giustino G, Koruth JS, Langan N, Sofi A, Dukkipati SR, Halperin JL, Fuster V, Kohli-Seth R, and Reddy VY
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- Action Potentials, Adult, Aged, Aged, 80 and over, Arrhythmias, Cardiac diagnosis, Arrhythmias, Cardiac mortality, Arrhythmias, Cardiac physiopathology, COVID-19 diagnosis, COVID-19 mortality, COVID-19 physiopathology, Female, Hospital Mortality, Hospitalization, Humans, Incidence, Male, Middle Aged, New York City epidemiology, Prognosis, Registries, Risk Assessment, Risk Factors, Time Factors, Young Adult, Arrhythmias, Cardiac epidemiology, COVID-19 epidemiology, Heart Conduction System physiopathology, Heart Rate
- Abstract
Background: Patients with coronavirus disease 2019 (COVID-19) who develop cardiac injury are reported to experience higher rates of malignant cardiac arrhythmias. However, little is known about these arrhythmias-their frequency, the underlying mechanisms, and their impact on mortality., Methods: We extracted data from a registry (NCT04358029) regarding consecutive inpatients with confirmed COVID-19 who were receiving continuous telemetric ECG monitoring and had a definitive disposition of hospital discharge or death. Between patients who died versus discharged, we compared a primary composite end point of cardiac arrest from ventricular tachycardia/fibrillation or bradyarrhythmias such as atrioventricular block., Results: Among 800 patients with COVID-19 at Mount Sinai Hospital with definitive dispositions, 140 patients had telemetric monitoring, and either died (52) or were discharged (88). The median (interquartile range) age was 61 years (48-74); 73% men; and ethnicity was White in 34%. Comorbidities included hypertension in 61%, coronary artery disease in 25%, ventricular arrhythmia history in 1.4%, and no significant comorbidities in 16%. Compared with discharged patients, those who died had elevated peak troponin I levels (0.27 versus 0.02 ng/mL) and more primary end point events (17% versus 4%, P =0.01)-a difference driven by tachyarrhythmias. Fatal tachyarrhythmias invariably occurred in the presence of severe metabolic imbalance, while atrioventricular block was largely an independent primary event., Conclusions: Hospitalized patients with COVID-19 who die experience malignant cardiac arrhythmias more often than those surviving to discharge. However, these events represent a minority of cardiovascular deaths, and ventricular tachyarrhythmias are mainly associated with severe metabolic derangement. Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT04358029.
- Published
- 2020
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8. Follow-up imaging after left atrial appendage closure.
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Kuroki K, Doshi SK, Whang W, Vanderzee S, Ducharme CB, Enomoto Y, Hanon S, Koruth JS, Miller MA, Choudry S, Sofi A, Langan N, Ellsworth B, Dukkipati SR, and Reddy VY
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- Aged, Aged, 80 and over, Atrial Appendage surgery, Atrial Fibrillation diagnosis, Atrial Fibrillation physiopathology, Female, Follow-Up Studies, Humans, Male, Atrial Appendage diagnostic imaging, Atrial Fibrillation surgery, Cardiac Catheterization methods, Cardiac Surgical Procedures methods, Echocardiography, Transesophageal methods, Registries
- Abstract
Background: Because device-related thrombus (DRT) portends a poor prognosis after left atrial appendage closure with the Watchman device, surveillance transesophageal echocardiography (TEE) is recommended at 45 days and 1 year. However, oral anticoagulants are just discontinued at 45 days, rendering this early TEE unlikely to detect DRT. Indeed, DRT is most likely to occur after instituting aspirin monotherapy., Objective: The purpose of this study was to evaluate the alternative strategy of first TEE imaging (or computed tomography) at 4 months post-Watchman implantation., Methods: After Food and Drug Administration approval, consecutive patients undergoing Watchman implantation at 2 centers received TEE or CT at 4 months and 1 year, along with a truncated drug regimen: 6 weeks of an oral anticoagulant (or clopidogrel in a subset) plus aspirin, then 6 weeks of dual antiplatelet therapy, and finally aspirin monotherapy., Results: Of the 530-patient cohort (mean age 78.7±7.9 years; 65.5% (n = 347) male; CHA
2 DS2 -VASc score 4.5±1.4), 465 patients (87.7%) received 4-month imaging: 83.0% (440 of 530) TEE and 4.7% (25 of 530) computed tomography. Over a median follow-up of 12 months, 16 ischemic strokes (ISs), 8 transient ischemic attacks, and 1 systemic embolization occurred. Importantly, no IS occurred between 45 days and 4 months; the sole transient ischemic attack in this period (at ∼2 months) occurred 1 week after transcatheter aortic valve replacement. DRT was detected in 2.4% (11 of 465) at 4 months and 0.9% (2 of 214) at 1 year. No IS, but 1 leg embolization, was observed after DRT detection., Conclusion: Delaying the first imaging post-Watchman implantation to 4 months was associated with no IS between 45 days and 4 months, the "vulnerable" period of this follow-up strategy., (Copyright © 2020 Heart Rhythm Society. Published by Elsevier Inc. All rights reserved.)- Published
- 2020
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9. Syncope and presyncope in patients with COVID-19.
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Oates CP, Turagam MK, Musikantow D, Chu E, Shivamurthy P, Lampert J, Kawamura I, Bokhari M, Whang W, Miller MA, Choudry S, Langan N, Sofi A, Dukkipati SR, Reddy VY, and Koruth JS
- Subjects
- Adult, Aged, Aged, 80 and over, Betacoronavirus, COVID-19, Comorbidity, Female, Hospitalization, Humans, Incidence, Male, Middle Aged, New York City epidemiology, Pandemics, Retrospective Studies, SARS-CoV-2, Syncope epidemiology, Telemetry, Coronavirus Infections complications, Pneumonia, Viral complications, Syncope virology
- Abstract
Introduction: Recent studies have described several cardiovascular manifestations of COVID-19 including myocardial ischemia, myocarditis, thromboembolism, and malignant arrhythmias. However, to our knowledge, syncope in COVID-19 patients has not been systematically evaluated. We sought to characterize syncope and/or presyncope in COVID-19., Methods: This is a retrospective analysis of consecutive patients hospitalized with laboratory-confirmed COVID-19 with either syncope or presyncope. This "study" group (n = 37) was compared with an age and gender-matched cohort of patients without syncope ("control") (n = 40). Syncope was attributed to various categories. We compared telemetry data, treatments received, and clinical outcomes between the two groups., Results: Among 1000 COVID-19 patients admitted to the Mount Sinai Hospital, the incidence of syncope/presyncope was 3.7%. The median age of the entire cohort was 69 years (range 26-89+ years) and 55% were men. Major comorbidities included hypertension, diabetes, and coronary artery disease. Syncopal episodes were categorized as (a) unspecified in 59.4% patients, (b) neurocardiogenic in 15.6% patients, (c) hypotensive in 12.5% patients, and (d) cardiopulmonary in 3.1% patients with fall versus syncope and seizure versus syncope in 2 of 32 (6.3%) and 1 of 33 (3.1%) patients, respectively. Compared with the "control" group, there were no significant differences in both admission and peak blood levels of d-dimer, troponin-I, and CRP in the "study" group. Additionally, there were no differences in arrhythmias or death between both groups., Conclusions: Syncope/presyncope in patients hospitalized with COVID-19 is uncommon and is infrequently associated with a cardiac etiology or associated with adverse outcomes compared to those who do not present with these symptoms., (© 2020 Wiley Periodicals LLC.)
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- 2020
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10. Definitive Management of a Traumatic Airway: Case Report.
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Fabich RA, Franklin BT, and Langan N
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- Anesthesia, Humans, Wounds, Penetrating, Airway Management, Neck Injuries diagnosis, Neck Injuries surgery
- Abstract
Maxillofacial and neck trauma from penetrating injuries present unique challenges for anesthesia providers and surgeons. In the austere conditions of a combat setting these challenges may be amplified due to limited resources and injury severity. Currently there is a lack of evidence and consensus on how to best manage a traumatized airway in this situation. The authors of this paper present the successful emergency management of a traumatized airway from a severe maxillofacial and neck-penetrating wound. A stepwise team approach using strong communication and a global mental model facilitated definitive airway management in this case allowing for safe transport to definitive care., (Published by Oxford University Press on behalf of the Association of Military Surgeons of the United States 2019. This work is written by (a) US Government employee(s) and is in the public domain in the US.)
- Published
- 2020
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11. Catheter Ablation of Atrial Fibrillation in Patients With Heart Failure: A Meta-analysis of Randomized Controlled Trials.
- Author
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Turagam MK, Garg J, Whang W, Sartori S, Koruth JS, Miller MA, Langan N, Sofi A, Gomes A, Choudry S, Dukkipati SR, and Reddy VY
- Subjects
- Anti-Arrhythmia Agents adverse effects, Atrial Fibrillation complications, Atrial Fibrillation mortality, Cause of Death, Exercise Tolerance, Heart Failure mortality, Hospitalization statistics & numerical data, Humans, Oxygen Consumption, Postoperative Complications, Quality of Life, Randomized Controlled Trials as Topic, Risk Assessment, Stroke Volume, Walk Test, Anti-Arrhythmia Agents therapeutic use, Atrial Fibrillation drug therapy, Atrial Fibrillation surgery, Catheter Ablation adverse effects, Heart Failure complications
- Abstract
This article has been corrected. The original version (PDF) is appended to this article as a Supplement., Background: Atrial fibrillation (AF) and heart failure (HF) frequently coexist and are associated with increased morbidity and mortality risk., Purpose: To compare benefits and harms between catheter ablation and drug therapy in adult patients with AF and HF., Data Sources: ClinicalTrials.gov, PubMed, Web of Science (Clarivate Analytics), EBSCO Information Services, Cochrane Central Register of Controlled Trials, Google Scholar, and various scientific conference sessions from 1 January 2005 to 1 October 2018., Study Selection: Randomized controlled trials (RCTs) published in English that had at least 6 months of follow-up and compared clinical outcomes of catheter ablation versus drug therapy in adults with AF and HF., Data Extraction: 2 investigators independently extracted data and assessed study quality., Data Synthesis: 6 RCTs involving 775 patients met inclusion criteria. Compared with drug therapy, AF ablation reduced all-cause mortality (9.0% vs. 17.6%; risk ratio [RR], 0.52 [95% CI, 0.33 to 0.81]) and HF hospitalizations (16.4% vs. 27.6%; RR, 0.60 [CI, 0.39 to 0.93]). Ablation improved left ventricular ejection fraction (LVEF) (mean difference, 6.95% [CI, 3.0% to 10.9%]), 6-minute walk test distance (mean difference, 20.93 m [CI, 5.91 to 35.95 m]), peak oxygen consumption (Vo2max) (mean difference, 3.17 mL/kg per minute [CI, 1.26 to 5.07 mL/kg per minute]), and quality of life (mean difference in Minnesota Living with Heart Failure Questionnaire score, -9.02 points [CI, -19.75 to 1.71 points]). Serious adverse events were more common in the ablation groups, although differences between the ablation and drug therapy groups were not statistically significant (7.2% vs. 3.8%; RR, 1.68 [CI, 0.58 to 4.85])., Limitation: Results driven primarily by 1 clinical trial, possible patient selection bias in the ablation group, lack of patient-level data, open-label trial designs, and heterogeneous follow-up length among trials., Conclusion: Catheter ablation was superior to conventional drug therapy in improving all-cause mortality, HF hospitalizations, LVEF, 6-minute walk test distance, Vo2max, and quality of life, with no statistically significant increase in serious adverse events., Primary Funding Source: None.
- Published
- 2019
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12. Outcomes of Ventricular Tachycardia Ablation Using Percutaneous Left Ventricular Assist Devices.
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Kusa S, Miller MA, Whang W, Enomoto Y, Panizo JG, Iwasawa J, Choudry S, Pinney S, Gomes A, Langan N, Koruth JS, d'Avila A, Reddy VY, and Dukkipati SR
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- Action Potentials, Aged, Cardiomyopathy, Dilated diagnosis, Cardiomyopathy, Dilated physiopathology, Female, Heart Failure diagnosis, Heart Failure physiopathology, Heart Rate, Humans, Length of Stay, Male, Middle Aged, New York City, Operative Time, Prosthesis Design, Retrospective Studies, Risk Factors, Severity of Illness Index, Stroke Volume, Tachycardia, Ventricular diagnosis, Tachycardia, Ventricular physiopathology, Time Factors, Treatment Outcome, Ventricular Dysfunction, Left diagnosis, Ventricular Dysfunction, Left physiopathology, Cardiomyopathy, Dilated therapy, Catheter Ablation adverse effects, Heart Failure therapy, Heart-Assist Devices, Tachycardia, Ventricular surgery, Ventricular Dysfunction, Left therapy, Ventricular Function, Left
- Abstract
Background: Although percutaneous left ventricular assist devices (pLVADs) facilitate mapping and ablation of hemodynamically unstable ventricular tachycardia (VT), there is limited data whether clinical outcomes are improved. We sought to retrospectively compare the outcomes of patients undergoing scar-related VT ablation with and without pLVAD support., Methods and Results: The study population comprised 194 patients (109 pLVAD and 85 non-pLVAD). The pLVAD group more often had dilated cardiomyopathy (33% versus 13%; P =0.001), New York Heart Association heart failure class ≥III (51% versus 25%; P <0.001), lower left ventricular ejection fractions (26±10% versus 39±16%; P <0.001), and electrical storm (49% versus 34%; P =0.04). Procedure times (422±112 versus 330±92 minutes; P <0.001), postablation VT inducibility (20% versus 7%; P =0.02), and length of subsequent hospitalization (median 6 versus 4 days; P =0.001) were all higher in the pLVAD group. During median follow-up of 215 days, the primary end point (recurrent VT, heart transplantation, or death) occurred in 36% of the pLVAD versus 26% of the non-pLVAD groups ( P =0.14). After propensity matching for differences between groups, no differences were seen between groups for both acute procedural outcomes and the primary end point., Conclusions: In this large single-center scar-related VT ablation experience, despite the worse clinical status of the patients selected for pLVAD support, clinical outcomes were better than expected and were similar to healthier patients not receiving hemodynamic support. Patients with dilated cardiomyopathy presenting with electrical storm, advanced heart failure, and severe left ventricular dysfunction most frequently received hemodynamic support during VT ablation., (© 2017 American Heart Association, Inc.)
- Published
- 2017
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13. Psychological, behavioral, and family characteristics of pediatric patients with chronic pain: a 1-year retrospective study and cluster analysis.
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Scharff L, Langan N, Rotter N, Scott-Sutherland J, Schenck C, Tayor N, McDonald-Nolan L, and Masek B
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- Adolescent, Child, Chronic Disease, Cluster Analysis, Comorbidity, Female, Humans, Male, Massachusetts epidemiology, Mental Disorders psychology, Pain classification, Pain psychology, Prevalence, Retrospective Studies, Risk Factors, Family Relations, Mental Disorders diagnosis, Mental Disorders epidemiology, Pain diagnosis, Pain epidemiology, Risk Assessment methods
- Abstract
Objectives: There has been a longstanding recognition that adult patients with chronic pain are not a homogenous population and that there are subgroups of patients who report high levels of distress and interpersonal difficulties as well as subgroups of patients who report little distress and high functioning. The purpose of the present study was to attempt to identify similar subgroups in a pediatric chronic pain population., Methods: The sample consisted of 117 children with chronic pain and their parents who were assessed in a multidisciplinary pain clinic during 2001. Participants completed a set of psychologic self-report questionnaires, as well as demographic and pain characteristic information. A cluster analysis was conducted to identify 3 distinct subgroups of patients to replicate similar studies of adult chronic pain sufferers., Results: Overall, mean scores were within population norms on measures of distress and family functioning, with somatic symptoms at a level of clinical significance. The cluster analysis identified the 3 subgroups that were strikingly similar to those identified in adult chronic pain populations: one with high levels of distress and disability, another with relatively low scores on distress and disability, and a third group that scored in between the other 2 on these measures but with marked low family cohesion., Discussion: The similarity of these subgroups to the adult chronic pain population subgroups as well as implications for future studies are discussed.
- Published
- 2005
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14. Undefined hypercoaguable state associated with massive right ventricular thrombus and embolism in a previously healthy 17-year-old male.
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Maraj S, Bajpai E, Crespo G, Doshi K, Langan N, Jacobs LE, and Kotler MN
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- Adolescent, Heart Ventricles, Humans, Male, Pulmonary Embolism diagnostic imaging, Echocardiography, Heart Diseases diagnostic imaging, Heart Diseases etiology, Pulmonary Embolism etiology, Thrombophilia complications, Thrombosis diagnostic imaging, Thrombosis etiology
- Abstract
A right ventricular thrombus (RVT) is an unusual finding on echocardiography. We describe a healthy young male patient who developed RVT with subsequent pulmonary embolism (PE), the etiology of which remains uncertain.
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- 2003
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15. Paradoxical embolism.
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Wongpraparut N, Zaman M, Langan N, Jacobs LE, Kotler MN, and Owen AN
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- Embolism, Paradoxical drug therapy, Female, Follow-Up Studies, Heparin administration & dosage, Humans, Magnetic Resonance Imaging methods, Middle Aged, Pulmonary Embolism drug therapy, Tomography, X-Ray Computed, Echocardiography, Transesophageal methods, Embolism, Paradoxical diagnostic imaging, Pulmonary Embolism diagnostic imaging
- Published
- 2002
- Full Text
- View/download PDF
16. Gender differences among prisoners in drug treatment.
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Langan NP and Pelissier BM
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- Female, Humans, Logistic Models, Male, Sex Factors, Substance-Related Disorders psychology, Treatment Outcome, Prisoners psychology, Substance-Related Disorders therapy, Women's Health
- Abstract
Purpose: Nearly all prison-based substance abuse treatment programs have been designed with male prisoners in mind. Administering these male-oriented programs to women prisoners has been the standard correctional practice. Recently, this practice has received considerable criticism. Critics argue that female prisoners have special needs that are not met by programs originally designed for male prisoners. However, most of the empirical support for the existence of such special needs rely on two inappropriate samples: prisoners who are not in treatment and treatment participants who are not incarcerated. Findings from these two different groups may not be generalizable to the population of prisoners in treatment., Methods: This paper directly addresses this generalizability problem with an examination of gender differences among 1,326 male and 318 female federal prisoners who were enrolled in a substance abuse treatment program., Results: Women used drugs more frequently, used harder drugs, and used them for different reasons than men. Women also confronted more difficulties than men in areas linked to substance abuse such as educational background, childhood family environment, adult social environment, mental health, and physical health., Conclusion: We find support for the argument that substance abuse treatment programs which were originally designed for men may be inappropriate for the treatment of women.
- Published
- 2001
- Full Text
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17. Electrocardiographic artifact.
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Squire A, Langan N, and Halperin J
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- Humans, Tachycardia, Ventricular therapy, Artifacts, Diagnostic Errors, Electrocardiography, Tachycardia, Ventricular diagnosis
- Published
- 2000
18. Uncommon atrial flutter: characteristics, mechanisms, and results of ablative therapy.
- Author
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Gomes JA, Santoni-Rugiu F, Mehta D, Langan NM, Marx SO, and Nayak H
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- Adult, Aged, Aged, 80 and over, Atrial Fibrillation pathology, Atrial Fibrillation physiopathology, Atrial Fibrillation surgery, Atrial Flutter diagnostic imaging, Atrial Flutter pathology, Atrial Flutter surgery, Body Surface Potential Mapping, Bundle of His physiopathology, Echocardiography, Electrocardiography, Endocardium innervation, Female, Follow-Up Studies, Heart Atria diagnostic imaging, Heart Atria innervation, Heart Conduction System physiopathology, Heart Conduction System surgery, Humans, Longitudinal Studies, Male, Middle Aged, Recurrence, Treatment Outcome, Atrial Flutter physiopathology, Catheter Ablation
- Abstract
Thirty-seven patients with atrial flutter were studied with catheter mapping and radiofrequency ablation. Uncommon atrial flutter occurred in 20 out of 37 (54%) patients. Atrial endocardial mapping showed two types of uncommon atrial flutter. In 15 patients (group I) it was characterized by a single clockwise circuit whereas in 5 patients (Group II) it was characterized by the presence of more than one circuit and/or localized atrial fibrillation. RFA ablation was acutely successful in 14 out of 15 patients (93%) in Group I and in 2 out of 5 (40%) patients in Group II. On long-term follow-up a significantly larger number of patients in Group I versus Group II (86% vs 20%) remained free of atrial flutter recurrence. We conclude that uncommon atrial flutter is a heterogeneous entity involving one or more reentrant circuits. Uncommon atrial flutter with multiple circuits may not be suitable for RFA.
- Published
- 1998
- Full Text
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19. Drug therapy versus implantation of a cardiac defibrillator for the treatment of malignant arrhythmias in left ventricular dysfunction.
- Author
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Mannino MM, Mehta D, Langan NM, and Gomes JA
- Subjects
- Amiodarone therapeutic use, Arrhythmias, Cardiac complications, Arrhythmias, Cardiac mortality, Female, Humans, Male, Survival Rate, Anti-Arrhythmia Agents therapeutic use, Arrhythmias, Cardiac therapy, Defibrillators, Implantable, Ventricular Dysfunction, Left complications
- Published
- 1996
- Full Text
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20. Safe intraaortic balloon pump placement through the ascending aorta using transesophageal ultrasound.
- Author
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Kaplan LJ, Weiman DS, Langan N, Sokil AB, and Whitman GJ
- Subjects
- Aorta diagnostic imaging, Humans, Punctures, Ultrasonography, Intra-Aortic Balloon Pumping methods
- Abstract
Intraaortic balloon pumping salvages a substantial number of patients who fail to be weaned from cardiopulmonary bypass after an open heart operation. Patients with severe peripheral vascular disease may require ascending aortic balloon pump insertion. We describe a simple method of direct aortic puncture for intraaortic balloon pump placement using transesophageal ultrasound as a means of avoiding complications during insertion and documenting correct balloon position.
- Published
- 1992
- Full Text
- View/download PDF
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