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Pezel T, Lacotte J, Horvilleur J, Toupin S, Hovasse T, Unterseeh T, Sanguineti F, Ait Said M, Salerno F, Fiorina L, Manenti V, Zouaghi A, Faradji A, Nicol M, Ah-Sing T, Dillinger JG, Henry P, Bousson V, Garot P, Garot J. Safety, feasibility and prognostic value of stress perfusion CMR in patients with MR-conditional pacemaker. Archives of Cardiovascular Diseases Supplements 2023. [DOI: 10.1016/j.acvdsp.2022.10.114] [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: 01/01/2023]
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Fiorina L, Lefebvre B, Plesse A, Henry C, Gardella C, Coquard C, Younsi S, Ait Said M, Salerno F, Horvilleur J, Lacotte J, Manenti V. High diagnostic accuracy of the detection of atrial arrhythmias from smartwatch electrocardiograms using a deep neural network. Archives of Cardiovascular Diseases Supplements 2023. [DOI: 10.1016/j.acvdsp.2022.10.326] [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: 12/31/2022]
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Lascarrou JB, Dumas F, Bougouin W, Legriel S, Aissaoui N, Deye N, Beganton F, Lamhaut L, Jost D, Vieillard-Baron A, Nichol G, Marijon E, Jouven X, Cariou A, Agostinucci J, Aissaoui-Balanant N, Algalarrondo V, Alla F, Alonso C, Amara W, Annane D, Antoine C, Aubry P, Azoulay E, Beganton F, Billon C, Bougouin W, Boutet J, Bruel C, Bruneval P, Cariou A, Carli P, Casalino E, Cerf C, Chaib A, Cholley B, Cohen Y, Combes A, Coulaud J, Da Silva D, Das V, Demoule A, Denjoy I, Deye N, Diehl J, Dinanian S, Domanski L, Dreyfuss D, Dubois-Rande J, Dumas F, Duranteau J, Empana J, Extramiana F, Fagon J, Fartoukh M, Fieux F, Gandjbakhch E, Geri G, Guidet B, Halimi F, Henry P, Jabre P, Joseph L, Jost D, Jouven X, Karam N, Lacotte J, Lahlou-Laforet K, Lamhaut L, Lanceleur A, Langeron O, Lavergne T, Lecarpentier E, Leenhardt A, Lellouche N, Lemiale V, Lemoine F, Linval F, Loeb T, Ludes B, Luyt C, Mansencal N, Mansouri N, Marijon E, Maury E, Maxime V, Megarbane B, Mekontso-Dessap A, Mentec H, Mira J, Monnet X, Narayanan K, Ngoyi N, Perier M, Piot O, Plaisance P, Plaud B, Plu I, Raphalen J, Raux M, Revaux F, Ricard J, Richard C, Riou B, Roussin F, Santoli F, Schortgen F, Sharshar T, Sideris G, Spaulding C, Teboul J, Timsit J, Tourtier J, Tuppin P, Ursat C, Varenne O, Vieillard-Baron A, Voicu S, Wahbi K, Waldmann V. Differential Effect of Targeted Temperature Management Between 32 °C and 36 °C Following Cardiac Arrest According to Initial Severity of Illness: Insights From Two International Data Sets. Chest 2022; 163:1120-1129. [PMID: 36445800 DOI: 10.1016/j.chest.2022.10.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 10/10/2022] [Accepted: 10/23/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Recent guidelines have emphasized actively avoiding fever to improve outcomes in patients who are comatose following resuscitation from cardiac arrest (ie, out-of-hospital cardiac arrest). However, whether targeted temperature management between 32 °C and 36 °C (TTM32-36) can improve neurologic outcome in some patients remains debated. RESEARCH QUESTION Is there an association between the use of TTM32-36 and outcome according to severity assessed at ICU admission using a previously derived risk score? STUDY DESIGN AND METHODS Data prospectively collected in the Sudden Death Expertise Center (SDEC) registry (France) between May 2011 and December 2017 and in the Resuscitation Outcomes Consortium Continuous Chest Compressions (ROC-CCC) trial (United States and Canada) between June 2011 and May 2015 were used for this study. Severity at ICU admission was assessed through a modified version of the Cardiac Arrest Hospital Prognosis (mCAHP) score, divided into tertiles of severity. The study explored associations between TTM32-36 and favorable neurologic status at hospital discharge by using multiple logistic regression as well as in tertiles of severity for each data set. RESULTS A total of 2,723 patients were analyzed in the SDEC data set and 4,202 patients in the ROC-CCC data set. A favorable neurologic status at hospital discharge occurred in 728 (27%) patients in the French data set and in 1,239 (29%) patients in the North American data set. Among the French data set, TTM32-36 was independently associated with better neurologic outcome in the tertile of patients with low (adjusted OR, 1.63; 95% CI, 1.15-2.30; P = .006) and high (adjusted OR, 1.94; 95% CI, 1.06-3.54; P = .030) severity according to mCAHP at ICU admission. Similar results were observed in the North American data set (adjusted ORs of 1.36 [95% CI, 1.05-1.75; P = .020] and 2.42 [95% CI, 1.38-4.24; P = .002], respectively). No association was observed between TTM32-36 and outcome in the moderate groups of the two data sets. INTERPRETATION TTM32-36 was significantly associated with a better outcome in patients with low and high severity at ICU admission assessed according to the mCAHP score. Further studies are needed to evaluate individualized temperature control following out-of-hospital cardiac arrest.
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Affiliation(s)
- Jean Baptiste Lascarrou
- Université Paris Cité, INSERM, PARCC, Paris, France; Médecine Intensive Réanimation, University Hospital Center, Nantes, France; AfterROSC Network Group, Paris, France.
| | - Florence Dumas
- Université Paris Cité, INSERM, PARCC, Paris, France; Emergency Department, Cochin University Hospital, APHP, Paris, France
| | - Wulfran Bougouin
- Université Paris Cité, INSERM, PARCC, Paris, France; AfterROSC Network Group, Paris, France; Medical-Surgical Intensive Care Unit, Hopital Privé Jacques Cartier, Massy, France
| | - Stephane Legriel
- Université Paris Cité, INSERM, PARCC, Paris, France; AfterROSC Network Group, Paris, France; Medical Surgical Intensive Care Unit, Mignot Hospital, Le Chesnay, France
| | - Nadia Aissaoui
- Université Paris Cité, INSERM, PARCC, Paris, France; AfterROSC Network Group, Paris, France; Medical Intensive Care Unit, Cochin Hospital (APHP) and University of Paris, Paris, France
| | - Nicolas Deye
- AfterROSC Network Group, Paris, France; Medical Intensive Care Unit, Lariboisière University Hospital, INSERM U942, Paris, France
| | | | - Lionel Lamhaut
- AfterROSC Network Group, Paris, France; SAMU de Paris-DAR Necker University Hospital-Assistance, Paris, France
| | - Daniel Jost
- Brigade des Sapeurs-Pompiers de Paris, Paris, France
| | - Antoine Vieillard-Baron
- Medical Intensive Care Unit, Ambroise Paré University Hospital, APHP, Boulogne-Billancourt, France
| | - Graham Nichol
- University of Washington-Harborview Center for Prehospital Emergency Care, University of Washington, Seattle, WA
| | - Eloi Marijon
- Université Paris Cité, INSERM, PARCC, Paris, France
| | | | - Alain Cariou
- Université Paris Cité, INSERM, PARCC, Paris, France; AfterROSC Network Group, Paris, France; Medical Intensive Care Unit, Cochin Hospital (APHP) and University of Paris, Paris, France
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Fiorina L, Lefebvre B, Gardella C, Henry C, Coquard C, Younsi S, Ait Said M, Salerno F, Horvilleur J, Lacotte J, Mannenti V. Smartwatch-based detection of atrial arrhythmia using a deep neural network in a tertiary care hospital. Europace 2022. [DOI: 10.1093/europace/euac053.563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background/Introduction
Smartwatch electrocardiograms (SW ECG) have been identified as a promising noninvasive solution to assess heart rhythm abnormalities, especially atrial arrhythmias (AA) which includes atrial fibrillation, atrial flutter and supraventricular tachycardia. This study evaluates the performance of the detection of AA with a smartwatch and compares the accuracy of two algorithms, the latest version of the original companion application (Apple ECG 2.0 App) and a novel deep neural network (DNN), in a population typical of an electrophysiology department.
Purpose
Determine if a novel DNN can improve the detection of AA on SW ECG in a tertiary care hospital.
Methods
101 patients from the electrophysiology department of one tertiary center were included in this ongoing study. Three simultaneous ECGs were collected for each patient: one 12-lead ECG (Mindray BeneHeart R12) and two SW ECGs (Apple Watch) taken from the left wrist (SWw ECG) and the lower left abdomen (SWa ECG). 12-lead ECGs were adjudicated by a blinded expert electrophysiologist as 52 AA and 49 not AA and considered as gold standard. The SW ECGs were processed by the ECG 2.0 App and the DNN in parallel. The proportions of inconclusive diagnoses returned and the performances were assessed and compared.
Results
Overall, the ECG 2.0 App yielded inconclusive diagnoses for 19% (19/101) of all SWw ECGs while the DNN reduced that number to 0% (0/101). A similar result holds for SWa ECGs (Figure 1). Regarding the detection of AA from SWw ECGs, the ECG 2.0 App had a sensitivity of 81% (95% CI, 67%-90%), a specificity of 97% (95% CI, 87%-100%) and an accuracy of 89% (95% CI, 80%-94%) while the DNN had a sensitivity of 92% (95% CI, 82%-97%), a specificity of 90% (95% CI, 78%-96%) and an accuracy of 91% (95% CI, 84%-95%). For SWa ECGs (Figure 2), the sensitivity of the DNN was found significantly higher compared to the ECG 2.0 App: 96% (95% CI, 89%-98%) vs 76% (95% CI, 61%-87%). Conclusion(s): A novel DNN algorithm decreased the number of inconclusive diagnostics in the detection of AA from SW ECG from around 20% to 0%, which could help limit the overreading time spent by the physicians. Excluding inconclusive diagnostics, we observed no significant difference in performance between the two algorithms except for the sensitivity for SW ECG taken from the abdomen where the DNN outperforms the ECG 2.0 App. Routine application of this SW ECG analysis in tertiary care hospitals offers significant promise in arrhythmia diagnosis.
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Affiliation(s)
- L Fiorina
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | | | | | | | - C Coquard
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - S Younsi
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - M Ait Said
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - F Salerno
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - J Horvilleur
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - J Lacotte
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - V Mannenti
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
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Steven D, Fiedler L, Roca I, Lorgat F, Lacotte J, Haqqani H, Jesser E, Williams C, Roithinger F. High-density mapping in catheter ablation for persistent atrial fibrillation. Europace 2022. [DOI: 10.1093/europace/euac053.237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Private company. Main funding source(s): Abbott Laboratories
Background
Pulmonary vein isolation (PVI) is an established treatment option for persistent atrial fibrillation (PersAF). Corresponding long-term success rates remain modest however, advancements in high-density (HD) mapping may better identify substrates. The HD grid-style mapping catheter (HD Grid) allows for simultaneous analysis of adjacent orthogonal bipolar signals that may assist in ablation strategy decisions to achieve favorable outcomes in treating PersAF.
Objective
This was a prospective, multi-center, observational study to quantify and characterize the use of a market-released HD mapping catheter in PersAF subjects.
Methods
HD Grid was used in PersAF subjects undergoing radiofrequency (RF) ablation across 25 sites to gather data regarding safety, mapping efficiency and quality, ablation strategies, and procedural outcomes.
Results
334 PersAF subjects (average age: 64.2 years; 76% male) were enrolled in this study. Types of maps generated included peak-to-peak voltage (78%; 322/413), local activation time (LAT) (11.4%; 47/413), and complex fractionated electrogram (CFE) mean (7.7%; 32/413). Median total mapping points collected and used were 8428.0 (IQR 4845.0-13366.0) and 2099.0 (IQR 1219.0-2947.0), respectively, in a median of 11.0 (IQR 7.3-16.0) minutes per map. Low voltage, scar/fibrosis, and CFE were searched for in 90.4% (302/334), 53.6% (179/334), and 15.9% (53/334) of subjects, respectively. A PVI approach was used in 93.1% of all ablation procedures and 34.1% (114/334) of subjects received PVI plus additional lesions. HD Grid identified signals of interest not identified by the ablation catheter in 80.4% (205/255) of subjects. The total procedure time was 134.3 ± 51.3 minutes with a fluoroscopy time of 14.5 ± 11.3 minutes and RF ablation time of 32.4 ± 29.6 minutes. Of the subjects in atrial fibrillation (AF) (59.6%; 199/334), AF was terminated in 80.4% (160/199). 87.4% (173/198) of subjects were free from recurrent atrial arrhythmias as detected by 48-hour Holter monitoring at 12 months. 13.8% (46/334) of subjects experienced any adverse event through 12 months including 1 death unrelated to the procedure and 1 event deemed related to HD Grid by the investigator.
Conclusion
This study demonstrated the use of the HD Grid mapping catheter to create detailed maps and to guide ablation strategies to treat PersAF while maintaining an adequate safety profile.
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Affiliation(s)
- D Steven
- Heart Center at the University of Cologne, Electrophysiology, Cologne, Germany
| | - L Fiedler
- LK Wiener Neustadt Abteilung fuer Kardiologie und Nephrologie, Wiener Neustadt, Austria
| | - I Roca
- Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - F Lorgat
- Christiaan Barnard Memorial Hospital, Cape Town, South Africa
| | - J Lacotte
- JACQUES CARTIER PRIVATE HOSPITAL, Massy, France
| | - H Haqqani
- The Prince Charles Hospital, Brisbane, Australia
| | - E Jesser
- Abbott, Abbott Park, United States of America
| | - C Williams
- Abbott, Abbott Park, United States of America
| | - F Roithinger
- LK Wiener Neustadt Abteilung fuer Kardiologie und Nephrologie, Wiener Neustadt, Austria
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Pezel T, Lacotte J, Toupin S, Garot P, Hovasse T, Unterseeh T, Sanguineti F, Ait Said M, Salerno F, Fiorina L, Manenti V, Horvilleur J, Garot J. Safety, feasibility and prognostic value of stress perfusion CMR in patients with pacemaker. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab090.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
BACKGROUND
Several studies have shown the excellent prognostic value of stress cardiovascular magnetic resonance (CMR). However, its prognostic value in patients with pacemaker (PM) remains unknown because most studies excluded PM patients.
PURPOSE
This study aimed to assess the prognostic value of vasodilator stress perfusion CMR in patients with PM.
METHODS
Consecutive patients with MR-conditional pacemakers referred for stress perfusion CMR at 1.5 T were followed for the occurrence of major adverse cardiovascular events (MACE), defined by cardiovascular death or nonfatal myocardial infarction. Cox regressions analyses were performed to determine the prognostic value of CMR-parameters. The quality of CMR was rated by two observers blinded to clinical details. Data on pacemaker and leads were collected pre- and post-CMR.
RESULTS
Of 224 patients who completed the stress CMR protocol, 2 patients had inconclusive stress CMR due to artefact and 203 patients (72.9% male, mean age 71.4 ± 8.7 years) completed the follow-up (median [interquartile range], 7.0 [5.2-7.3] years). Among those, 23 experienced a MACE (11.3%). Stress CMR was well tolerated with no major adverse events. All scans were completed successfully with no significant change in lead thresholds or pacing parameters. Overall, the image quality was rated good or excellent in 84.1% of segments. Using Kaplan-Meier analysis, inducible ischemia and late gadolinium enhancement (LGE) were significantly associated with the occurrence of MACE (hazard ratio, HR: 11.80 [95% CI, 4.63-30.30]; and HR: 6.74 [95% CI, 2.47-18.40], both p < 0.001; respectively). In multivariable Cox regression, inducible ischemia and LGE were independent predictors of a higher incidence of MACE (HR: 5.24 [95% CI, 2.61-14.40]; and HR: 2.98 [95% CI, 2.25-4.02]; both p < 0.001; respectively). In patients with ischemia, CMR-related coronary revascularization showed no benefit in reducing MACE (p = 0.25).
CONCLUSION
Stress CMR is safe, feasible and has a good discriminative prognostic value in consecutive patients with PM.
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Affiliation(s)
- T Pezel
- Cardiovascular Institute Paris-Sud (ICPS), Department of CMR, Massy, France
| | - J Lacotte
- Cardiovascular Institute Paris-Sud (ICPS), Department of Electrophysiology and Pacing, Massy, France
| | - S Toupin
- Siemens Healthcare France , MRI Department , Saint Denis, France
| | - P Garot
- Cardiovascular Institute Paris-Sud (ICPS), Department of CMR, Massy, France
| | - T Hovasse
- Cardiovascular Institute Paris-Sud (ICPS), Department of CMR, Massy, France
| | - T Unterseeh
- Cardiovascular Institute Paris-Sud (ICPS), Department of CMR, Massy, France
| | - F Sanguineti
- Cardiovascular Institute Paris-Sud (ICPS), Department of CMR, Massy, France
| | - M Ait Said
- Cardiovascular Institute Paris-Sud (ICPS), Department of Electrophysiology and Pacing, Massy, France
| | - F Salerno
- Cardiovascular Institute Paris-Sud (ICPS), Department of Electrophysiology and Pacing, Massy, France
| | - L Fiorina
- Cardiovascular Institute Paris-Sud (ICPS), Department of Electrophysiology and Pacing, Massy, France
| | - V Manenti
- Cardiovascular Institute Paris-Sud (ICPS), Department of Electrophysiology and Pacing, Massy, France
| | - J Horvilleur
- Cardiovascular Institute Paris-Sud (ICPS), Department of Electrophysiology and Pacing, Massy, France
| | - J Garot
- Cardiovascular Institute Paris-Sud (ICPS), Department of CMR, Massy, France
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Fiedler L, Roithinger F, Roca I, Lorgat F, Roux A, Lacotte J, Miller A, Steven D. Simultaneous orthogonal bipole mapping compared to conventional electrode configurations and impact on ablation strategies: results from a real world observational study. Europace 2021. [DOI: 10.1093/europace/euab116.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Private company. Main funding source(s): Abbott
Background
3D mapping systems are pivotal to identify low voltage areas and to define ablation strategies. In this context, high-density multipolar mapping catheters with varying electrode configurations are used for accurate myocardial substrate definition. High density mapping using a grid shaped catheter allows for use of simultaneous analysis of adjacent orthogonal bipolar signals that may assist in more accurate substrate characterization and ablation strategy decisions.
Purpose
This was a prospective, multicenter observational study to characterize the utility of electroanatomical mapping with a high density grid-style mapping catheter (HD Grid) in subjects undergoing catheter ablation for persistent atrial fibrillation (PersAF) or ventricular tachycardia (VT) in real-world clinical settings.
Methods
Mapping was performed with the HD Grid catheter to generate high-density maps of cardiac chambers in order to assess the potential influence of the simultaneous orthogonal bipole configuration on PersAF and VT ablation strategies. Differences in substrate identification between simultaneous orthogonal bipole configuration and standard along-the-spline electrode configuration, and potential effects on ablation strategies were investigated.
Results
During the study period (January 2019 through April 2020), 367 subjects underwent catheter ablation for PersAF (N = 333, average age 64.1yr, 75% male) or VT (N = 34, average age = 64.3yr, 85.3% male).
In total, 494 maps were generated to treat patients undergoing PersAF ablation and 57 to treat patients undergoing VT ablation. Compared to standard along-the-spline configuration, mapping with the simultaneous orthogonal bipole configuration showed differences in 57.8% (178/308) of maps generated, with the greatest difference noticed in surface area of low voltage (62.9%) and location of low voltage (55.6%).
In comparisons performed live during the procedure (n = 50), simultaneous orthogonal bipole configuration assisted in identification of ablation targets in 70.0% of cases, changing the ablation strategy compared to that identified with along-the-spline configuration in 34.3%.
In comparisons performed retrospectively after the procedure (n = 258), the ablation strategy identified with simultaneous orthogonal bipole configuration differed from along-the-spline configuration in 21.7% of maps. Even compared to a higher-density electrode configuration using all-bipoles rather than along-the-spline bipoles, simultaneous orthogonal bipole configuration identified differences in 57.1% of maps.
Conclusion
The HD grid catheter combined with simultaneous orthogonal bipole configuration can define myocardial substrate more accurately compared to standard along-the-spline configuration. The difference in substrate identification has potential impact on ablation strategy. Further clinical trials are needed to elucidate the role of orthogonal bipole configuration mapping and improved ablation success rates.
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Affiliation(s)
- L Fiedler
- LK Wiener Neustadt Abteilung fuer Kardiologie und Nephrologie, Wiener Neustadt, Austria
| | - F Roithinger
- LK Wiener Neustadt Abteilung fuer Kardiologie und Nephrologie, Wiener Neustadt, Austria
| | - I Roca
- Hospital Clinic de Barcelona, Barcelona, Spain
| | - F Lorgat
- Christiaan Barnard Memorial Hospital, Cape Town, South Africa
| | - A Roux
- SANTE REPUBLIQUE CENTRE, Clermont-Ferrand, France
| | - J Lacotte
- Institut Cardiovasculaire Paris Sud, Paris, France
| | - A Miller
- Abbott, Minneapolis, United States of America
| | - D Steven
- University hospital Köln, Cologne, Germany
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Roca I, Lorgat F, Haqqani H, Lacotte J, Roithinger F, Fiedler L, Miller A, Steven D. Impact of high density mapping using a grid shaped catheter with orthogonal signal analysis on ventricular tachycardia ablation strategy. Europace 2021. [DOI: 10.1093/europace/euab116.353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Private company. Main funding source(s): Abbott
Background
Ventricular tachycardia (VT) in patients with structural heart disease (SHD) is related to scar and slow conduction areas. Substrate-based ablation has become the gold standard treatment in patients with SHD-related refractory VT. A new high-density grid shaped catheter that allows simultaneous analysis of adjacent orthogonal bipolar signals can allow better understanding of these slow conduction areas with the potential to improve ablation results.
Purpose
This was a prospective, multicenter observational study to characterize the utility of electroanatomical mapping with a high density grid-style mapping catheter (HD Grid) in subjects undergoing catheter ablation for ventricular tachycardia (VT) in real-world clinical settings.
Methods
During the study period, patients who underwent VT ablation using the HD Grid catheter as the primary mapping catheter were included. Comparisons both during the procedure and retrospectively were performed between conventional electrode configuration maps and simultaneous orthogonal bipole electrode configuration maps. The influence of these different configurations on ablation strategy was analyzed.
Results
During study period (January 2019 – April 2020) 57 maps were performed in 34 VT subjects (average age: 64.3yr, male: 85.3%, ischemic cardiomyopathy: 70.6%). The left ventricle was mapped in 94.1% of subjects, including left ventricular outflow tract and papillary muscles in 20.6% and 8.8% respectively, reporting minimal or no ectopic beats in 97.1% of the subjects. The total number of mapping points collected was 14172.0 ± 15174.8 in 24.3 ± 17.9 min per map.
Simultaneous orthogonal bipole mapping identified differences in 67.6% of maps compared to linear along-the-spline electrode configurations. The differences consisted mainly in the surface area (92%) and location of low voltage (40%). When compared during the procedure, simultaneous orthogonal bipole mapping was used to identify ablation strategy in 100% of cases. When compared to a standard along-the-spline configuration retrospectively, the ablation strategy identified with simultaneous orthogonal bipoles was different in 30.1% of cases. The ablation strategy used in these subjects was mainly substrate ablation (late potentials and low voltage areas in scar regions) with an acute success rate of 97.1%.
Conclusions
The use of the HD Grid catheter with the ability to analyze orthogonal signals is feasible and has the potential to change the ablation strategy in one third of VT patients with a high acute success rate.
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Affiliation(s)
- I Roca
- Hospital Clinic de Barcelona, Barcelona, Spain
| | - F Lorgat
- Christiaan Barnard Memorial Hospital, Cape Town, South Africa
| | - H Haqqani
- The Prince Charles Hospital, Brisbane, Australia
| | - J Lacotte
- Institut Cardiovasculaire Paris Sud, Paris, France
| | - F Roithinger
- LK Wiener Neustadt Abteilung fuer Kardiologie und Nephrologie, Wiener Neustadt, Austria
| | - L Fiedler
- LK Wiener Neustadt Abteilung fuer Kardiologie und Nephrologie, Wiener Neustadt, Austria
| | - A Miller
- Abbott, Minneapolis, United States of America
| | - D Steven
- University hospital Köln, Cologne, Germany
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Fiorina L, Younsi S, Horvilleur J, Manenti V, Lacotte J, Raimondo C, Chemaly P, Salerno F, Ait Said M. COVID-19 et troubles du rythme. Ann Cardiol Angeiol (Paris) 2020; 69:376-379. [PMID: 33081916 PMCID: PMC7522628 DOI: 10.1016/j.ancard.2020.09.024] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 09/21/2020] [Indexed: 12/15/2022]
Abstract
Lors de la pandémie due au virus SARS-CoV2 les troubles du rythme n’ont pas été au premier plan. Cependant, le virus semble atteindre de nombreux organes et le tropisme cardiaque est maintenant bien connu. Les connaissances dans ce domaine sont encore loin d’être exhaustives, mais plusieurs séries publiées concernant les patients atteints de la COVID-19 retrouvent une proportion significative de troubles du rythme, dont certains pouvant potentiellement mener à une issue fatale. Ces troubles du rythmes sont principalement supraventriculaires à type de fibrillation atriale (FA) ou flutter, mais également ventriculaire avec des tachycardies ventriculaires (TV) fibrillation ventriculaire (FV) et plus rarement torsades de pointe (TdP). Les causes en sont multiples, du fait de l’atteinte multiorgane du virus et des interactions médicamenteuses potentielles. Par ailleurs, la question de la surveillance de troubles du rythme pouvant émerger à moyen et long terme après une infection reste à explorer.
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Affiliation(s)
- L Fiorina
- Ramsay Santé, Institut Cardiovasculaire Paris Sud, hôpital privé Jacques-Cartier, 6, avenue du Noyer-Lambert, 91300 Massy, France.
| | - S Younsi
- Ramsay Santé, Institut Cardiovasculaire Paris Sud, hôpital privé Jacques-Cartier, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - J Horvilleur
- Ramsay Santé, Institut Cardiovasculaire Paris Sud, hôpital privé Jacques-Cartier, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - V Manenti
- Ramsay Santé, Institut Cardiovasculaire Paris Sud, hôpital privé Jacques-Cartier, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - J Lacotte
- Ramsay Santé, Institut Cardiovasculaire Paris Sud, hôpital privé Jacques-Cartier, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - C Raimondo
- Ramsay Santé, Institut Cardiovasculaire Paris Sud, hôpital privé Jacques-Cartier, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - P Chemaly
- Ramsay Santé, Institut Cardiovasculaire Paris Sud, hôpital privé Jacques-Cartier, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - F Salerno
- Ramsay Santé, Institut Cardiovasculaire Paris Sud, hôpital privé Jacques-Cartier, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - M Ait Said
- Ramsay Santé, Institut Cardiovasculaire Paris Sud, hôpital privé Jacques-Cartier, 6, avenue du Noyer-Lambert, 91300 Massy, France
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Younsi S, Chemaly P, Fiorina L, Horvilleur J, Lacotte J, Manenti V, Raimondo C, Salerno F, Ait Said M. [Infections in interventional electrophysiology]. Ann Cardiol Angeiol (Paris) 2020; 69:404-410. [PMID: 33071019 DOI: 10.1016/j.ancard.2020.09.033] [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] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 09/23/2020] [Indexed: 10/23/2022]
Abstract
The implantation of pacemakers and defibrillators carries the highest risk of infection in interventional electrophysiology. The use of implantable cardiac devices is continually increasing with almost 2 million devices implanted worldwide each year. The recipients' profile may also be associated with an increased risk of infection. Several measures can be implemented to reduce the risk of device-related infection. Systematic antibiotic prophylaxis has proven to be beneficial provided that prescription modalities are respected, especially with respect to the selection of the appropriate molecule and timing of administration prior to the procedure. Despite all the precautions taken during surgery (asepsis, prophylactic antibiotic therapy….) the estimated rate of peri-procedural infection is around 2%. Device related infections are associated with a high rate of morbidity and mortality as well as substantial healthcare costs. Staphylococcus aureus (SA) and epidermidis (SE) are the pathogenic agents involved in most cases. Prevention is crucial given the difficulties in treating such infections because of the near-systematic need to remove the device and antibiotic resistance. Leadless pacemakers and subcutaneous defibrillators are potential alternatives to implantable endocardial devices, albeit with certain limitations. A group of experts has recently issued consensus paper on the prevention, diagnosis and treatment of infections associated with endocardial implantable cardiac devices.
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Affiliation(s)
- S Younsi
- ICPS Jacques Cartier, Ramsay Générale de Santé, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - P Chemaly
- ICPS Jacques Cartier, Ramsay Générale de Santé, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - L Fiorina
- ICPS Jacques Cartier, Ramsay Générale de Santé, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - J Horvilleur
- ICPS Jacques Cartier, Ramsay Générale de Santé, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - J Lacotte
- ICPS Jacques Cartier, Ramsay Générale de Santé, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - V Manenti
- ICPS Jacques Cartier, Ramsay Générale de Santé, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - C Raimondo
- ICPS Jacques Cartier, Ramsay Générale de Santé, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - F Salerno
- ICPS Jacques Cartier, Ramsay Générale de Santé, 6, avenue du Noyer-Lambert, 91300 Massy, France
| | - M Ait Said
- ICPS Jacques Cartier, Ramsay Générale de Santé, 6, avenue du Noyer-Lambert, 91300 Massy, France.
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Fiorina L, Marijon E, Maupain C, Coquard C, Larnier L, Rischard J, Bourmaud A, Salerno F, Horvilleur J, Lacotte J, Ait Said M, Manenti V, Maltret A, Li J, Gardella C. 222AI-based strategy enables faster Holter ECG analysis with equivalent clinical accuracy compared to a classical strategy. Europace 2020. [DOI: 10.1093/europace/euaa162.374] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Analysis of Holter recordings can be challenging and time-consuming, therefore requiring significant clinical resources in order to achieve a high-quality diagnosis. Such resources depend largely on the qualifications of the person conducting the analysis and the duration of the recordings. A novel Holter analysis platform has been developed, based on deep neural networks trained with a dataset of one million ECGs, to allow fast and reliable Holter recording analysis.
PURPOSE
This study sought to compare the performance of an artificial intelligence (AI)-based Holter analysis platform using deep learning tools with a classical one used on a daily basis in hospitals (the reference). The main endpoints evaluated were duration to complete the analysis by the physician operating it as well as diagnostic accuracy of each strategy, when platforms are used by electrophysiologists (EPs).
METHODS
For this prospective evaluation, a total of 159 Holter recordings (24-hour) were selected from a large Holter dataset from 1 hospital, with a relatively high prevalence of electrical rhythm and conduction disorders. Recordings were analysed by four EPs using independently both the AI-based and classical analysis platforms. All four EPs had no previous experience with the AI-based platform, except for an introductory 6-hour training session. Three EPs had multiple years of experience with the traditional platform, while one EP had limited experience. For each recording, in addition to the analysis duration, diagnostic accuracy was evaluated through the analysis of the presence or absence of predefined cardiac arrhythmias and conduction disorders (prevalence): pauses (25.2%), ventricular tachycardia (VT, 30.2%), atrial fibrillation (AF, 26.4%), high grade atrioventricular block (AVB, 10.1%) and burden of premature ventricular complex larger than 10% (PVC, 23.9%). Definite diagnostics were established by an expert EP after a careful examination of all available analysis reports.
RESULTS
Time required for the AI-based analysis was on average 42% shorter compared to the traditional platform (6.65 min vs 11.5 min, p < 0.0001). Regarding accuracy to detect electrical disorders, there was no statistically significant differences between AI-based and classical platforms (AF: 98.7% vs 96.9%, Pause: 99.4% vs 100%, PVC: 98.7% vs 98.7%, VT: 92.5% vs 96.2%, AVB: 98.7% vs 94.3%). CONCLUSION: These preliminary findings suggest that an AI-based strategy to analyse Holter recordings may be highly accurate in detecting cardiac electrical abnormalities, with significant time savings compared to a classical strategy, even for users with no previous experience with the novel AI-based platform. An AI-based Holter analysis platform may contribute to a broader and more resource-efficient adoption of Holter monitoring.
Abstract Figure. analysis duration using each strategy
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Affiliation(s)
- L Fiorina
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - E Marijon
- European Hospital Georges Pompidou, Cardiology, Paris, France
| | - C Maupain
- PITIE SALPETRIERE APHP UNIVERSITY HOSPITAL, electrophysiology, Paris, France
| | - C Coquard
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - L Larnier
- PITIE SALPETRIERE APHP UNIVERSITY HOSPITAL, electrophysiology, Paris, France
| | - J Rischard
- European Hospital Georges Pompidou, Cardiology, Paris, France
| | - A Bourmaud
- University Paris Diderot , Paris, France
| | - F Salerno
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - J Horvilleur
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - J Lacotte
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - M Ait Said
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - V Manenti
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - A Maltret
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - J Li
- Cardiologs Techologies, Paris, France
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12
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Ait Said M, Coquard C, Horvilleur J, Manenti V, Fiorina L, Lacotte J, Salerno F. [Transcatheter aortic valve implantation and conduction disturbances]. Ann Cardiol Angeiol (Paris) 2019; 68:443-449. [PMID: 31668339 DOI: 10.1016/j.ancard.2019.09.024] [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] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 09/20/2019] [Indexed: 10/25/2022]
Abstract
Transcatheter aortic valve implantation (TAVI) is currently becoming the treatment of choice for patients with calcific aortic stenosis. Despite several technical improvements, the incidence of conduction disturbances has not diminished and remains TAVI's major complication. These disturbances include the occurrence of left bundle branch block and/or high-grade atrioventricular block often requiring pacemaker implantation. The proximity of the aortic valve to the conduction system (conduction pathways) accounts for the occurrence of these complications. Several factors have been identified as carrying a high risk of conduction disturbances like the presence of pre-existing right bundle branch block, the type of valve implanted, the volume of aortic and mitral calcifications, the size of the annulus and the depth of valve implantation. Left bundle branch block is the most frequent post TAVI conduction disturbance. Whereas the therapeutic strategy for persistent complete atrioventricular block is simple, it becomes complex in the presence of fluctuating changes in PR interval and left bundle branch block duration. The QRS width threshold value (150-160 ms) indicative of the need for pacemaker implantation is still being debated. Although there are currently no recommendations regarding the management of these conduction disturbances, the extension of TAVI indications to patient at low surgical risk calls for a standardization of our practice. However, a decision algorithm was recently proposed by a group of experts composed of interventional cardiologists, electrophysiologists and cardiac surgeons. There are still uncertainties about the appropriate timing of pacemaker implantation and the management of new onset left bundle branch block.
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Affiliation(s)
- M Ait Said
- ICPS Jacques Cartier, groupe Ramsay Générale de Santé, 6, avenue du Noyer Lambert, 91300 Massy, France.
| | - C Coquard
- ICPS Jacques Cartier, groupe Ramsay Générale de Santé, 6, avenue du Noyer Lambert, 91300 Massy, France
| | - J Horvilleur
- ICPS Jacques Cartier, groupe Ramsay Générale de Santé, 6, avenue du Noyer Lambert, 91300 Massy, France
| | - V Manenti
- ICPS Jacques Cartier, groupe Ramsay Générale de Santé, 6, avenue du Noyer Lambert, 91300 Massy, France
| | - L Fiorina
- ICPS Jacques Cartier, groupe Ramsay Générale de Santé, 6, avenue du Noyer Lambert, 91300 Massy, France
| | - J Lacotte
- ICPS Jacques Cartier, groupe Ramsay Générale de Santé, 6, avenue du Noyer Lambert, 91300 Massy, France
| | - F Salerno
- ICPS Jacques Cartier, groupe Ramsay Générale de Santé, 6, avenue du Noyer Lambert, 91300 Massy, France
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13
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Bougouin W, Dumas F, Lamhaut L, Marijon E, Carli P, Combes A, Pirracchio R, Aissaoui N, Karam N, Deye N, Sideris G, Beganton F, Jost D, Cariou A, Jouven X, Adnet F, Agostinucci JM, Aissaoui-Balanant N, Algalarrondo V, Alla F, Alonso C, Amara W, Annane D, Antoine C, Aubry P, Azoulay E, Beganton F, Benhamou D, Billon C, Bougouin W, Boutet J, Bruel C, Bruneval P, Cariou A, Carli P, Casalino E, Cerf C, Chaib A, Cholley B, Cohen Y, Combes A, Crahes M, Da Silva D, Das V, Demoule A, Denjoy I, Deye N, Dhonneur G, Diehl JL, Dinanian S, Domanski L, Dreyfuss D, Duboc D, Dubois-Rande JL, Dumas F, Empana JP, Extramiana F, Fartoukh M, Fieux F, Gabbas M, Gandjbakhch E, Geri G, Guidet B, Halimi F, Henry P, Hidden Lucet F, Jabre P, Jacob L, Joseph L, Jost D, Jouven X, Karam N, Kassim H, Lacotte J, Lahlou-Laforet K, Lamhaut L, Lanceleur A, Langeron O, Lavergne T, Lecarpentier E, Leenhardt A, Lellouche N, Lemiale V, Lemoine F, Linval F, Loeb T, Ludes B, Luyt CE, Maltret A, Mansencal N, Mansouri N, Marijon E, Marty J, Maury E, Maxime V, Megarbane B, Mekontso-Dessap A, Mentec H, Mira JP, Monnet X, Narayanan K, Ngoyi N, Perier MC, Piot O, Pirracchio R, Plaisance P, Plu I, Raux M, Revaux F, Ricard JD, Richard C, Riou B, Roussin F, Santoli F, Schortgen F, Sharifzadehgan A, Sideris G, Spaulding C, Teboul JL, Timsit JF, Tourtier JP, Tuppin P, Ursat C, Varenne O, Vieillard-Baron A, Voicu S, Wahbi K, Waldmann V. Extracorporeal cardiopulmonary resuscitation in out-of-hospital cardiac arrest: a registry study. Eur Heart J 2019; 41:1961-1971. [DOI: 10.1093/eurheartj/ehz753] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 03/26/2019] [Accepted: 10/01/2019] [Indexed: 11/13/2022] Open
Abstract
Abstract
Aims
Out-of-hospital cardiac arrest (OHCA) without return of spontaneous circulation (ROSC) despite conventional resuscitation is common and has poor outcomes. Adding extracorporeal membrane oxygenation (ECMO) to cardiopulmonary resuscitation (extracorporeal-CPR) is increasingly used in an attempt to improve outcomes.
Methods and results
We analysed a prospective registry of 13 191 OHCAs in the Paris region from May 2011 to January 2018. We compared survival at hospital discharge with and without extracorporeal-CPR and identified factors associated with survival in patients given extracorporeal-CPR. Survival was 8% in 525 patients given extracorporeal-CPR and 9% in 12 666 patients given conventional-CPR (P = 0.91). By adjusted multivariate analysis, extracorporeal-CPR was not associated with hospital survival [odds ratio (OR), 1.3; 95% confidence interval (95% CI), 0.8–2.1; P = 0.24]. By conditional logistic regression with matching on a propensity score (including age, sex, occurrence at home, bystander CPR, initial rhythm, collapse-to-CPR time, duration of resuscitation, and ROSC), similar results were found (OR, 0.8; 95% CI, 0.5–1.3; P = 0.41). In the extracorporeal-CPR group, factors associated with hospital survival were initial shockable rhythm (OR, 3.9; 95% CI, 1.5–10.3; P = 0.005), transient ROSC before ECMO (OR, 2.3; 95% CI, 1.1–4.7; P = 0.03), and prehospital ECMO implantation (OR, 2.9; 95% CI, 1.5–5.9; P = 0.002).
Conclusions
In a population-based registry, 4% of OHCAs were treated with extracorporeal-CPR, which was not associated with increased hospital survival. Early ECMO implantation may improve outcomes. The initial rhythm and ROSC may help select patients for extracorporeal-CPR.
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Affiliation(s)
- Wulfran Bougouin
- Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, 56 rue Leblanc, 75787 Paris, France
- Medical-Surgical Intensive Care Unit, Ramsay Générale de Santé, Hôpital Privé Jacques Cartier, 6 Avenue du Noyer Lambert, 91300 Massy, France
- Paris Sudden Death Expertise Center, 56 rue Leblanc, 75787 Paris, France
- AfterROSC network, 27 Rue du Faubourg Saint-Jacques, 75014 Paris, France
| | - Florence Dumas
- Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, 56 rue Leblanc, 75787 Paris, France
- Paris Sudden Death Expertise Center, 56 rue Leblanc, 75787 Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, 12 Rue de l'École de Médecine, 75006 Paris, France
- Emergency Department, Cochin-Hotel-Dieu Hospital, APHP, 27 Rue du Faubourg Saint-Jacques, 75014 Paris, France
| | - Lionel Lamhaut
- Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, 56 rue Leblanc, 75787 Paris, France
- Paris Sudden Death Expertise Center, 56 rue Leblanc, 75787 Paris, France
- AfterROSC network, 27 Rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, 12 Rue de l'École de Médecine, 75006 Paris, France
- Intensive Care Unit - SAMU 75, Necker-Enfants-Malades Hospital, APHP, 149 Rue de Sèvres, 75015 Paris, France
| | - Eloi Marijon
- Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, 56 rue Leblanc, 75787 Paris, France
- Paris Sudden Death Expertise Center, 56 rue Leblanc, 75787 Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, 12 Rue de l'École de Médecine, 75006 Paris, France
- Cardiology Department, Georges Pompidou European Hospital, AP-HP, 20 Rue Leblanc, 75015 Paris, France
| | - Pierre Carli
- Université Paris Descartes-Sorbonne Paris Cité, 12 Rue de l'École de Médecine, 75006 Paris, France
- Intensive Care Unit - SAMU 75, Necker-Enfants-Malades Hospital, APHP, 149 Rue de Sèvres, 75015 Paris, France
| | - Alain Combes
- Medical-Surgical Intensive Care Unit, iCAN, Institute of Cardiometabolism and Nutrition, Pitié-Salpétrière Hospital, APHP, 47-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - Romain Pirracchio
- Université Paris Descartes-Sorbonne Paris Cité, 12 Rue de l'École de Médecine, 75006 Paris, France
- Surgical ICU, Georges Pompidou European Hospital, AP-HP, 20 Rue Leblanc, 75015 Paris, France
| | - Nadia Aissaoui
- Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, 56 rue Leblanc, 75787 Paris, France
- Paris Sudden Death Expertise Center, 56 rue Leblanc, 75787 Paris, France
- AfterROSC network, 27 Rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, 12 Rue de l'École de Médecine, 75006 Paris, France
- Medical ICU, Georges Pompidou European Hospital, AP-HP, 20 Rue Leblanc, 75015 Paris, France
| | - Nicole Karam
- Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, 56 rue Leblanc, 75787 Paris, France
- Paris Sudden Death Expertise Center, 56 rue Leblanc, 75787 Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, 12 Rue de l'École de Médecine, 75006 Paris, France
- Cardiology Department, Georges Pompidou European Hospital, AP-HP, 20 Rue Leblanc, 75015 Paris, France
| | - Nicolas Deye
- AfterROSC network, 27 Rue du Faubourg Saint-Jacques, 75014 Paris, France
- Medical ICU, Lariboisière Hospital, AP-HP, 2 Rue Ambroise Paré, 75010 Paris, France
| | - Georgios Sideris
- Cardiology Department, Lariboisière Hospital, AP-HP, 2 Rue Ambroise Paré, 75010 Paris, France
| | - Frankie Beganton
- Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, 56 rue Leblanc, 75787 Paris, France
- Paris Sudden Death Expertise Center, 56 rue Leblanc, 75787 Paris, France
| | - Daniel Jost
- Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, 56 rue Leblanc, 75787 Paris, France
- Paris Sudden Death Expertise Center, 56 rue Leblanc, 75787 Paris, France
- Brigade de Sapeurs Pompiers de Paris (BSPP), 1 Place Jules Renard, 75017 Paris, France
| | - Alain Cariou
- Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, 56 rue Leblanc, 75787 Paris, France
- Paris Sudden Death Expertise Center, 56 rue Leblanc, 75787 Paris, France
- AfterROSC network, 27 Rue du Faubourg Saint-Jacques, 75014 Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, 12 Rue de l'École de Médecine, 75006 Paris, France
- Medical Intensive Care Unit, Cochin Hospital, APHP, 27 Rue du Faubourg Saint-Jacques, 75014 Paris, France
| | - Xavier Jouven
- Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, 56 rue Leblanc, 75787 Paris, France
- Paris Sudden Death Expertise Center, 56 rue Leblanc, 75787 Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, 12 Rue de l'École de Médecine, 75006 Paris, France
- Cardiology Department, Georges Pompidou European Hospital, AP-HP, 20 Rue Leblanc, 75015 Paris, France
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Henri P, Prevel C, Pellerano M, Lacotte J, Stoebner PE, Morris MC, Meunier L. Psoriatic epidermis is associated with upregulation of CDK2 and inhibition of CDK4 activity. Br J Dermatol 2019; 182:678-689. [PMID: 31145809 DOI: 10.1111/bjd.18178] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND The cyclin-dependent kinases (CDKs) CDK2 and CDK4 are involved in regulation of cell-cycle progression, and psoriasis is characterized by hyperproliferation of basal epidermal cells. CDK inhibitory proteins (CKIs) such as p16INK 4A (p16) bind CDK4/6 kinases and prevent their interaction with D-type cyclins. CKIs such as p21Cip1 (p21) and p27Kip1 (p27) associate with CDK-cyclin complexes and prevent their activation. OBJECTIVES To gain insight into the molecular implication of CDK2 and CDK4 kinases in psoriasis, we sought to characterize expression of these kinases and associated cyclins, as well as of CKIs, and addressed the status of CDK2 and CDK4 activity in human psoriatic epidermis. METHODS A cohort of 24 patients with psoriasis participated in the study. Biopsies were removed from a chronic plaque and from nonlesional skin. CDK2, CDK4, cyclin D1, cyclin E and CKI protein expression was assessed by immunoblotting, immunohistochemistry and immunofluorescence. CDK4 and CDK2 mRNA expression was determined by real-time polymerase chain reaction. Specific kinase activities of CDK2 and CDK4 were evaluated using fluorescent peptide biosensors. RESULTS CDK2-cyclin E expression and activity were significantly increased in psoriatic epidermis compared with uninvolved adjacent skin. In contrast, CDK4-cyclin D1 activity was inhibited, although its expression was increased in psoriatic epidermis and its transcription slightly inhibited. p27 expression was reduced, while p16 and p21 expression was induced in psoriatic epidermis. CONCLUSIONS Epidermal CDK2 activity is increased in psoriatic epidermis while CDK4 activity is completely inhibited. These alterations are not associated with changes in CDK transcription and instead involve post-translational control mediated by decreased expression of p27 and p16 overexpression, respectively. What's already known about this topic? Cyclin-dependent kinases (CDKs) are involved in cell-cycle progression. The levels of cyclin partners and CDK inhibitors regulate their activity. Psoriasis is a chronic T-cell-driven inflammatory skin disease characterized by hyperproliferation of basal epidermal cells. What does this study add? Thanks to fluorescent peptide biosensors, this study demonstrates that epidermal CDK2 activity is increased in psoriatic epidermis while CDK4 activity is completely inhibited. These alterations involve post-translational control mediated by decreased expression of p27, and p16 overexpression, respectively. What is the translational message? CDK2 and CDK4 are involved in regulation of cell-cycle progression, and psoriasis is characterized by hyperproliferation of basal epidermal cells. Epidermal CDK2 activity is increased in psoriatic epidermis while CDK4 activity is completely inhibited. These alterations are not associated with changes in CDK transcription and instead involve post-translational control mediated by decreased expression of p27 and p16 overexpression, respectively. Pharmacological modulation of CDK2 and CDK4 may constitute a promising therapeutic strategy.
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Affiliation(s)
- P Henri
- Institute of Biomolecules Max Mousseron (IBMM), University of Montpellier, UMR CNRS 5247, Montpellier, France
| | - C Prevel
- Institute of Biomolecules Max Mousseron (IBMM), University of Montpellier, UMR CNRS 5247, Montpellier, France
| | - M Pellerano
- Institute of Biomolecules Max Mousseron (IBMM), University of Montpellier, UMR CNRS 5247, Montpellier, France
| | - J Lacotte
- Department of Dermatology, Caremeau University Hospital, Nîmes, France
| | - P E Stoebner
- Institute of Biomolecules Max Mousseron (IBMM), University of Montpellier, UMR CNRS 5247, Montpellier, France.,Department of Dermatology, Caremeau University Hospital, Nîmes, France
| | - M C Morris
- Institute of Biomolecules Max Mousseron (IBMM), University of Montpellier, UMR CNRS 5247, Montpellier, France
| | - L Meunier
- Institute of Biomolecules Max Mousseron (IBMM), University of Montpellier, UMR CNRS 5247, Montpellier, France.,Department of Dermatology, Caremeau University Hospital, Nîmes, France
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Lacotte J, Hau E, Munier AL, Mougari F, Lafaurie M, Vignon-Pennamen MD, Bagot M. Une tuberculose cutanée révélée par son traitement. Ann Dermatol Venereol 2018. [DOI: 10.1016/j.annder.2018.09.455] [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: 10/27/2022]
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Lacotte J, Garrot J, Raimondo C, Durand P, Miatello J, Sacher F, Maltret A. P485Successful epicardial ablation of ventricular tachycardia electric storm in an 8 years-old boy with idiopathic left ventricle aneurysm - CASE REPORT. Europace 2017. [DOI: 10.1093/ehjci/eux141.208] [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: 11/13/2022] Open
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Lacotte J, Du-Thanh A, Girard C, Fondain M, Cerutti D, Guillot B. Syndrome d’activation macrophagique sous ipilimumab. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.521] [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]
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Debruyne D, Samba D, Lacotte J, Tartière J, Deshayes JP, Segol P, Bricard H, Moulin M. Bile and blood ratios of cyclosporin and its metabolites in patients on continuous infusion during the first three weeks after liver transplantation. Clin Drug Investig 2014; 12:67-79. [PMID: 24610667 DOI: 10.2165/00044011-199612020-00002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Ten patients with orthotopic liver transplants were investigated during routine therapeutic monitoring to study the relationship between the concentrations of cyclosporin and its metabolites in blood, bile and urine, and whether this information can provide early signs of severe hepatic disorders post-transplantation. Cyclosporin (Sandimmun®) was administered by continuous infusion at a constant rate of 5 mg/kg/day, modified to keep the blood cyclosporin concentration within the target range (400 to 500 μg/L). The concentrations of cyclosporin and combined cyclosporin-metabolites in blood, bile and urine were assayed daily during the 3 post-transplantation weeks that the patients spent in intensive care.All patients developed cholestatis and cytolysis during the first week. The severity of these liver transplant disorders increased in 5 patients and decreased in the other 5 in the second week. The pharmacokinetics of cyclosporin differed in the 2 groups: in patients without severe hepatic disorders, the blood metabolites/cyclosporin ratio (M/C) stabilised at 1.2 ± 0.4 in week 2 and at 0.8 ± 0.2 in week 3, bile cyclosporin/blood cyclosporin (bile C/blood C) fluctuated around 13.5 (13.5 ± 9.5 in week 2 and 13.5 ± 9.0 in week 3) and the bile metabolite/blood metabolite (bile M/blood M) ratio was very high and variable (131 ± 86 in week 2 and 159 ± 116 in week 3). Metabolites significantly accumulated in the blood of patients with severe hepatic disorders (M/C = 2.8 ± 0.6 in week 2 and 3.5 ± 1.0 in week 3); bile C/blood C (2.6 ± 2.1 in week 2 and 3.4 ± 1.1 in week 3) and bile M/blood M (11.9 ± 7.8 in week 2 and 12.5 ± 7.9 in week 3) significantly decreased and showed less interindividual variability.Blood cyclosporin is usually monitored to help optimise the dosage. However, if this was extended to include the monitoring of metabolites in the blood, and cyclosporin and metabolites in the bile, it could provide an early indication of severe hepatic disorders in patients with transplanted livers.
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Affiliation(s)
- D Debruyne
- Laboratory of Pharmacology and Department of Anaesthesiology, University Hospital Centre of Caen, 14032, Caen Cédex, France
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Maltret A, Lacotte J. Tachycardies supraventriculaires de l’enfant : histoire naturelle et prise en charge. Archives of Cardiovascular Diseases Supplements 2012. [DOI: 10.1016/s1878-6480(12)70826-1] [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: 11/30/2022]
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Posch MG, Perrot A, Boldt LH, Lehmkuhl HB, Hetzer R, Dietz R, Haverkamp W, Ozcelik C, Boldt LH, Lohse M, Perrot A, Posch MG, Polotzki M, Rolf S, Ozcelik C, Haverkamp W, Nof E, Laish- Farkash A, Marek D, Pras E, Eldar M, Antzelevitch C, Glikson M, Luria D, Laish-Farkash A, Nof E, Marek-Yagel D, Viskin S, Eldar M, Antzelevitch C, Glikson M, Luria D, Nof E, Belhassen B, Arad M, Bhuiyan ZA, Antzelevitch C, Rosso R, Wilde AAM, Glikson M, Duthoit G, Fressart V, Simon F, Hidden-Lucet F, Lacotte J, Lecarpentier Y, Frank R, Hebert JL. Abstracts: Genetics in arrhythmias. Europace 2009. [DOI: 10.1093/europace/euq222] [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: 11/14/2022] Open
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De Sisti A, Tonet J, Gueffaf F, Touil F, Leclercq JF, Aouate P, Lacotte J, Hidden-Lucet F, Frank R. Effects of inadvertent atrioventricular block on clinical outcomes during cryoablation of the slow pathway in the treatment of atrioventricular nodal re-entrant tachycardia. Europace 2008; 10:1421-7. [DOI: 10.1093/europace/eun297] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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De Sisti A, Tonet J, Barakett N, Lacotte J, Leclercq JF, Frank R. Transvenous cryo-ablation of the slow pathway for the treatment of atrioventricular nodal re-entrant tachycardia: a single-centre initial experience study. Europace 2007; 9:401-6. [PMID: 17416910 DOI: 10.1093/europace/eum031] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AIMS Within the last several years, transvenous cryo-ablation has become an alternative method to perform ablation of the slow-pathway. This study evaluated the acute and long-term safety and effectiveness of atrio-ventricular nodal re-entrant tachycardia (AVNRT) cryo-ablation. METHODS AND RESULTS The first 69 consecutive patients with AVNRT (60 slow-fast, 4 fast-slow, and 5 slow-slow) who underwent slow-pathway cryo-ablation were included. Mean age was 37 +/- 15, body weight 68 +/- 14 kg, symptom duration 125 +/- 104 months, and number of ineffective antiarrhythmic (AA) drugs 1.8 +/- 1.4. A 7 Fr cryo-catheter (Cryocath(A)) was used, with initially 4-mm-tip and later with 6-mm-tip electrode. Cryo-mapping (n = 7.9 +/- 8.4 per pt) was performed at the temperature of -30 degrees C to test the effect on the target ablation site. Successful cryo-mapping was defined as abolition of nodal conduction jump or AV nodal refractory period prolongation. Cryo-ablation (n = 5.1 +/- 4.9 per pt) was then applied by freezing to -75 degrees C for 4 min in duration if no AV-block occurred. Acute procedural success (defined as AVNRT non-inducibility) after the first cryo-ablation attempt was achieved in 60/69 patients (87%). During cryo-ablation, inadvertent transient AV-block was encountered in 14 patients (five I AV-block and nine II-III AV-block). A mid-septal target site was the only variable correlated with inadvertent AV-block occurrence during cryo-ablation (P < 0.02). Long-term clinical success after cryo-ablation was globally achieved in 56/66 (85%) with a mean follow-up of 18 +/- 9 months (3 pts dropped-out). After the first procedure, 41/66 (62%) had no relapse, eight had a dramatic reduction in AVNRT duration-frequency and considered themselves cured, and five needed previously ineffective AA (with no relapse in three, drastic reduction in AVNRT duration-frequency in two). The five last patients needed one or more procedures, after which one had no recurrence and one had reduction in duration-frequency. Absence of recurrence after the first procedure was positively correlated with 6-mm-tip cryo-catheter use (<0.001) and negatively with acute procedural success (<0.001). At multivariate analysis, both were independently significant (<0.04 and <0.008, respectively). Long-term clinical success was correlated only with 6-mm-tip cryo-catheter use (<0.001). CONCLUSIONS Slow pathway cryo-ablation is associated with an acute success but a higher recurrence rate. A 6-mm-tip cryo-catheter seems to assure during cryo-ablation a large acute and long-term success. AV-block seems non-guaranteed by a negative cryo-mapping, stressing on need of a careful surveillance. Nevertheless, the theoretical advantage of avoiding the risk of permanent AV-block when compared with radiofrequency needs larger series to be demonstrated.
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Affiliation(s)
- A De Sisti
- Rhythmology Unit, Cardiology Institute, Pitie-Salpetriere Hospital, Paris 75015, France.
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Torre S, Lacotte J, Hidden-Lucet F, Himbert C, Guize L, Lavergne T, Frank R. [Survey into cardiac pacing in the Ile-de-France area for the year 2001: evaluation of indications]. Arch Mal Coeur Vaiss 2006; 99:871-5. [PMID: 17100136] [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] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
UNLABELLED A survey into the implantation of cardiac pacemakers during 2001 in the Ile-de-France area was carried out by the French National Insurance Medical Service in order to evaluate performance in all centres performing more than 10 primary implantations per year. METHODS AND RESULTS In 2001, 12 centres out of a total of 49 performed less than 50 primary implantations per year, representing 5% of the total regional activity, which was estimated to be 6414 procedures. The remaining 95% of procedures were spread evenly among 8 high-throughput centres (> 200 primary implantations per year) and 29 medium-throughput centres (50 to 200 primary implantations per year). Indications for pacing were analysed retrospectively by a team of regulatory doctors on a sample of 2176 patients with reference to the ACC/AHA/NASPE guidelines. After examination of the medical records, the indication was ranked as being class I, II or Ill (absence of indication). A valid indication was lacking in 8.2% of cases. Sinus node dysfunction represented 74.6% of the non-indications, and this classification had the predictive factors of asymptomatic dysfunction, and treatment with anti-arrhythmic or bradycardic medication. The proportion of class III interventions was significantly lower in the high-throughput centres (5.8 vs 9.9%, p < 0.05). CONCLUSION 8.2% of primary pacing procedures were not indicated and resulted principally from asymptomatic sinus node dysfunction.
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Affiliation(s)
- S Torre
- Service médical de l'Assurance maladie de I'lle-de-France, 17, av. de Flandre, 75019 Paris
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Aouate P, Elbaz N, Klug D, Lacotte J, Raguin D, Frank R, Lelouche D, Dubois-Randé JL, Tonet J, Fontaine G. [Atrial flutter with 1/1 nodo-ventricular conduction with amiodarone. From physiopathology to diagnosis]. Arch Mal Coeur Vaiss 2002; 95:1181-7. [PMID: 12611038] [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] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Atrial flutter with 1/1 nodo-ventricular conduction is a classical complication of Vaughan-Williams's Class I antiarrhythmic drugs. The increase of the flutter cycle and weak action of the antiarrhythmic on the atrioventricular node leads to 1/1 conduction of atrial depolarisation to the ventricles. In view of their marked action on the atrioventricular node, this type of pro-arrhythmic effect is very unexpected with Class III antiarrhythmics. The authors report 7 cases of 1/1 atrial flutter with oral amiodarone observed between 1994 and 2001. The patients were 6 men and 1 woman with an average age of 58 +/- 14 years. Four of them had underlying cardiac disease; none were hyperthyroid. The initial arrhythmia was 2/1 atrial flutter (n = 4), 1/1 atrial flutter (n = 2) and atrial fibrillation (n = 1). Treatment was preventive with doses of 400 mg/day associated with carvedilol in one patient and 200 mg/day in another. The other five patients all received loading doses of 9200 +/- 2400 mg over 10 +/- 4 days. The symptoms were palpitations (n = 2) associated in one patient with hypotension, one syncope, one near syncope and one cardiogenic shock. The ventricular cycle of the 1/1 flutter was 287 +/- 33 ms. The QRS duration was 136 +/- 35 ms with ventricular tachycardia-like appearances in 3 cases. An adrenergic trigger factor was noted in 5 patients. One patient required emergency cardioversion. The authors discuss the physiopathology of 1/1 flutter and theoretical diagnostic methods are proposed. In conclusion, amiodarone does not always prevent the occurrence of 1/1 nodo-ventricular conduction in atrial flutter.
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Affiliation(s)
- P Aouate
- Hôpital Jean-Rostand, 39-41, rue Legalleu, 94200 Ivry-sur-Seine.
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Elbaz N, Lacotte J. [Feeling faint, syncope and brief loss of consciousness. Diagnostic approach]. Rev Prat 2001; 51:1369-77. [PMID: 11503512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Affiliation(s)
- N Elbaz
- Fédération de cardiologie, hôpital Henri-Mondor, 94010 Créteil
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Boeuf B, Maragnes P, Belzic I, Lacotte J, Bonte JB, Guillois B. [Glucocorticoid-induced hypertrophic cardiomyopathy in premature infants: apropos of 4 cases]. Arch Pediatr 1997; 4:152-7. [PMID: 9097827 DOI: 10.1016/s0929-693x(97)86160-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND The steroidal treatment used to prevent bronchopulmonary dysplasia (BD) in the preterm babies may be the cause of several complications, one of them being hypertrophic cardiomyopathy. CASE REPORT Four infants developed hypertrophic cardiomyopathy during glucocorticoid (dexamethasone and/or betamethasone) treatment for bronchopulmonary dysplasia. In one of them, septal hypertrophy led to left ventricular outflow tract obstruction and congestive heart failure. All four were premature infants born after 2 weeks of gestation and weighing 780 to 1,080 g. The first echocardiographic changes appeared between the 4th and 15th day of the glucocorticoid course when the cumulated dose was respectively 1.82-1.87-3.51 and 3.86 mg/kg. Hypertrophic cardiomyopathy resolved completely between 2 and 4 weeks after cessation of the treatment. CONCLUSION The glucocorticoid dosage to prevent BD should be reduced to 0.3 mg/kg/j and the myocardial function should be monitored by repeated echocardiograms during the first 15 days of treatment.
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Affiliation(s)
- B Boeuf
- Service de néonatologie, CHU Clemenceau, Caen, France
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Mosquet B, Starace J, Madelaine S, Simon JY, Lacotte J, Moulin M. [Chorea-athetosis syndrome under the effect of carbamazepine and viloxazine. Consequence of drug interaction?]. Therapie 1994; 49:513-4. [PMID: 7878613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Mosquet B, Lacotte J, Le Querrec A, Petitjean J, Grollier G, Moulin M. [Severe hematologic involvement in parvovirus B19 infection. Are antithrombin III injections the origin of the contamination?]. Therapie 1994; 49:471-2. [PMID: 7855776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Henri P, Mosquet B, Hurault de Ligny B, Lacotte J, Cardinau E, Moulin M, Ryckelinck JP. [Hypocoagulation caused by thiabendazole-acenocoumarol interaction]. Therapie 1993; 48:500-1. [PMID: 8146845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Bertran F, de la Sayette V, Lacotte J, Mosquet B, Morin P, Moulin M. [Acute rhabdomyolysis and meprobamate poisoning]. Therapie 1992; 47:444. [PMID: 1299996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Zunic P, Lacotte J, Pegoix M, Buteux G, Leroy G, Mosquet B, Moulin M. [Saccharomyces boulardii fungemia. Apropos of a case]. Therapie 1991; 46:498-9. [PMID: 1819157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Abstract
A gas chromatographic method using a short, high-resolution capillary column connected to a specific thermoionic detector and requiring a simple and short extraction step without evaporation was developed for the rapid and precise determination of two new hypnotics, zolpidem and zopiclone, in serum at concentrations greater than 5 ng/mL. The assay was linear between 5 and 200 ng/mL, with coefficients of intra- and interassay variation less than 5% for both. The method was validated and then used to analyze zolpidem serum concentrations in nine rabbits after oral administration of 0.5 mg/kg and zopiclone serum concentrations in six patients treated orally with a 7.5-g dose.
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Affiliation(s)
- D Debruyne
- Laboratory of Pharmacology, Caen University Hospital Center, France
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Lacotte J, Perrin C, Mosquet B, Moulin M, Bazin C. [Agranulocytosis caused by paracetamol. A case report]. Therapie 1990; 45:438-9. [PMID: 2260044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Gram LF, Debruyne D, Caillard V, Boulenger JP, Lacotte J, Moulin M, Zarifian E. Substantial rise in sparteine metabolic ratio during haloperidol treatment. Br J Clin Pharmacol 1989; 27:272-5. [PMID: 2713222 PMCID: PMC1379791 DOI: 10.1111/j.1365-2125.1989.tb05362.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A sparteine test was carried out in 14 patients suffering from acute schizophrenic psychoses before and 1-2 times during oral haloperidol treatment in doses of 10-40 mg day-1. In patients classified as extensive metabolisers (sparteine MR less than 20 before treatment), haloperidol treatment resulted in a rise in sparteine MR that correlated with the serum-haloperidol concentration both within and between patients. At the highest serum haloperidol concentrations (60-80 nM) an increase in sparteine MR by a factor 15-50 was seen, but no patients were transformed into phenotypically poor metabolisers. The steady state concentration of haloperidol on the initial standard dose of 10 mg day-1 was the same in one patient classified as a sparteine poor metaboliser (MR = 112) as in eleven patients classified as extensive metabolisers (MR:0.22-1.47).
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Affiliation(s)
- L F Gram
- Centre Psychiatrique Esquirol, University Hospital Center of Caen, France
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Camsonne R, Potier JC, Moulin MA, Lacotte J, Bonnefoy E, Scanu P, Grollier G, Bigot MC. [Crossed digitalis-alkaloid detoxication with an anti-digoxin antibody. Surveillance and mixed elimination of circulating digitoxin]. Presse Med 1988; 17:1541. [PMID: 2971947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Perrin C, Debruyne D, Lacotte J, Laloum D, Bonte JB, Moulin M. Treatment of caffeine intoxication by exchange transfusion in a newborn. Acta Paediatr Scand 1987; 76:679-81. [PMID: 3630690 DOI: 10.1111/j.1651-2227.1987.tb10546.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The symptoms of acute poisoning after accidental administration of ten times the usually prescribed dosage of caffeine in a premature infant included the following neurological signs: incessant tremors, hypertonia, continuous opisthotonos posture, whining and crying and digestive disturbances. The very high serum caffeine levels, 160 mg/l, determined 66 hours after the first administration was confirmed by the very high cerebrospinal fluid caffeine concentration 115 mg/l. Two exchange transfusions performed at an interval of 16 hours produced a large decrease in serum caffeine levels of approximately 40 mg/l each time, and a similar decrease in the cerebrospinal fluid concentration. The clinical status of the infant improved very rapidly and the child's psychomotor development was normal at 3 months of age.
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Camsonne R, Moulin MA, Potier C, Bazin C, Grollier G, Charbonneau P, Lacotte J, Albessard F. [Induction of quinidine-3-hydroxylase by phenobarbital in man]. Therapie 1982; 37:692-4. [PMID: 7167872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Moulin MA, Albessard F, Lacotte J, Camsonne R. Hydrophilic ion-pair reversed-phase high-performance liquid chromatography for the simultaneous assay of isoniazid and acetylisoniazid in serum: a microscale procedure. J Chromatogr 1981; 226:250-4. [PMID: 7320150 DOI: 10.1016/s0378-4347(00)84230-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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