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Servatius H, Kueffer T, Erdoes G, Seiler J, Tanner H, Noti F, Haeberlin A, Madaffari A, Branca M, Dütschler S, Theiler L, Reichlin T, Roten L. Electrophysiological differences of randomized deep sedation with dexmedetomidine versus propofol. BMC Anesthesiol 2024; 24:263. [PMID: 39085782 PMCID: PMC11290000 DOI: 10.1186/s12871-024-02647-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 07/18/2024] [Indexed: 08/02/2024] Open
Abstract
BACKGROUND Dexmedetomidine and propofol are common sedatives in intensive care units and for interventional procedures. Both may compromise sinus node function and atrioventricular conduction. The objective of this prospective, randomized study is to compare the effect of dexmedetomidine with propofol on sinus node function and atrioventricular conduction. METHODS In a tertiary care center in Switzerland we included from September 2019 to October 2020 160 patients (65 ± 11 years old; 32% female) undergoing first ablation for atrial fibrillation by cryoballoon ablation or by radiofrequency ablation. Patients were randomly assigned to deep sedation with dexmedetomidine (DEX group) versus propofol (PRO group). A standard electrophysiological study was performed after pulmonary vein isolation with the patients still deeply sedated and hemodynamically stable. RESULTS Eighty patients each were randomized to the DEX and PRO group. DEX group patients had higher baseline sinus cycle length (1022 vs. 1138 ms; p = 0.003) and longer sinus node recovery time (SNRT400; 1597 vs. 1412 ms; p = 0.042). However, both corrected SNRT and normalized SNRT did not differ. DEX group patients had longer PR interval (207 vs. 186 ms; p = 0.002) and AH interval (111 vs. 95 ms, p = 0.008), longer Wenckebach cycle length of the atrioventricular node (512 vs. 456 ms; p = 0.005), and longer atrioventricular node effective refractory period (390 vs. 344 ms; p = 0.009). QRS width and HV interval were not different. An arrhythmia, mainly atrial fibrillation, was induced in 33 patients during the electrophysiological study, without differences among groups (20% vs. 15%, p = 0.533). CONCLUSIONS Dexmedetomidine has a more pronounced slowing effect on sinus rate and suprahissian AV conduction than propofol, but not on infrahissian AV conduction and ventricular repolarization. These differences need to be taken into account when using these sedatives. TRIAL REGISTRATION ClinicalTrials.gov number NCT03844841, 19/02/2019.
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Affiliation(s)
- Helge Servatius
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Thomas Kueffer
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Gabor Erdoes
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Jens Seiler
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Hildegard Tanner
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Fabian Noti
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Andreas Haeberlin
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Antonio Madaffari
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | | | - Sophie Dütschler
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Lorenz Theiler
- Department of Anaesthesiology, Kantonsspital Aarau, Aarau, Switzerland
| | - Tobias Reichlin
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Laurent Roten
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
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Rajagopalan B, Lakkireddy D, Al-Ahmad A, Chrispin J, Cohen M, Di Biase L, Gopinathannair R, Nasr V, Navara R, Patel P, Santangeli P, Shah R, Sotomonte J, Sridhar A, Tzou W, Cheung JW. Management of anesthesia for procedures in the cardiac electrophysiology laboratory. Heart Rhythm 2024:S1547-5271(24)02822-4. [PMID: 38942104 DOI: 10.1016/j.hrthm.2024.06.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 06/16/2024] [Accepted: 06/23/2024] [Indexed: 06/30/2024]
Abstract
The complexity of cardiac electrophysiology procedures has increased significantly during the past 3 decades. Anesthesia requirements of these procedures can differ on the basis of patient- and procedure-specific factors. This manuscript outlines various anesthesia strategies for cardiac implantable electronic devices and electrophysiology procedures, including preprocedural, procedural, and postprocedural management. A team-based approach with collaboration between cardiac electrophysiologists and anesthesiologists is required with careful preprocedural and intraprocedural planning. Given the recent advances in electrophysiology, there is a need for specialized cardiac electrophysiology anesthesia care to improve the efficacy and safety of the procedures.
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Affiliation(s)
| | | | | | - Jonathan Chrispin
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Mitchell Cohen
- Division of Cardiology, Inova Children's Hospital, Fairfax, Virginia
| | - Luigi Di Biase
- Department of Medicine, Albert Einstein College of Medicine, New York, New York
| | | | - Viviane Nasr
- Department of Anesthesia, Boston Children's Hospital, Boston, Massachusetts
| | - Rachita Navara
- Department of Medicine, University of California, San Francisco, California
| | - Parin Patel
- Ascension St Vincent's Hospital, Indianapolis, Indiana
| | | | - Ronak Shah
- Department of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, Pennsylvania
| | | | | | - Wendy Tzou
- Department of Medicine, University of Colorado, Denver, Colorado
| | - Jim W Cheung
- Department of Medicine, Weill Cornell Medicine/NewYork-Presbyterian, New York, New York
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de Sant'Ana Alves L, Arcoverde KN, de Oliveira CVA, Cavalcante JM, Araújo-Silva G, de Paula VV. Pharmacokinetics and pharmacodynamics of intravenous dexmedetomidine (2 μg∙kg -1) in dogs. Res Vet Sci 2024; 171:105229. [PMID: 38507826 DOI: 10.1016/j.rvsc.2024.105229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 02/08/2024] [Accepted: 03/12/2024] [Indexed: 03/22/2024]
Abstract
This study assessed the pharmacokinetics and pharmacodynamics of low-dose dexmedetomidine after IV bolus in dogs. Six healthy adult dogs (6.8 ± 3.0 kg) received dexmedetomidine (2 μg.kg-1 IV) over 2 min, using an infusion pump. Blood samples were collected totaling 5 h of monitoring. A validated UHPLC-MS/MS method was used to determine the plasma concentration of dexemedetomidine. For pharmacodynamics, HR, RR, oscillometric MBP, Grint END sedation score were evaluated at baseline (T0), every 3 min (T3 to T21), and after 30 (T30) and 60 (T60) minutes, with p < 0.05. T1/2 was 28.28 ± 6.14 min; the area under the curve was 467.44 ± 60.42 ng/mL/min. The total clearance was 5.46 ± 0.41 mL/min/kg, the Vdss was 146.19 ± 21.04 mL/kg, and the C max was 3.13 ± 1.15 ng/mL. HR (bpm) decreased significantly from T6 (79 ± 21) to T21 (78 ± 31) compared to T0 (116 ± 28). RR(mpm) decreased from T3 (43 ± 44) to T60 (41 ± 23), with T0 being 70 ± 48. The MBP (mmHg) increased at T18 (151 ± 34), T21 (152 ± 35), and T30 (140 ± 27), compared to T0 (111 ± 22). Sedation occurred at all times post-bolus, with a maximum peak at T12 (END 8 ± 6). The low dose of dexmedetomidine provided sedation in all animals, characterizing rapid metabolization and elimination. However, cardiovascular effects still may have negative repercussions in dogs with hemodynamic comorbidities, highlighting the caution and individualization of its use in certain patients.
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Affiliation(s)
- Larissa de Sant'Ana Alves
- Department of Animal Science, Universidade Federal Rural do Semi-Árido, 572, Rua Francisco Mota, Presidente Costa e Silva, Mossoró, RN 59625-900, Brazil
| | - Kathryn Nóbrega Arcoverde
- Department of Animal Science, Universidade Federal Rural do Semi-Árido, 572, Rua Francisco Mota, Presidente Costa e Silva, Mossoró, RN 59625-900, Brazil
| | - Caio Vinícius Almeida de Oliveira
- Department of Animal Science, Universidade Federal Rural do Semi-Árido, 572, Rua Francisco Mota, Presidente Costa e Silva, Mossoró, RN 59625-900, Brazil
| | - Jerson Marques Cavalcante
- Department of Animal Science, Universidade Federal Rural do Semi-Árido, 572, Rua Francisco Mota, Presidente Costa e Silva, Mossoró, RN 59625-900, Brazil
| | - Gabriel Araújo-Silva
- Universidade do Estado do Amapá, 650, Avenida Presidente Vargas, Centro, Macapá, AP 68.900-070, Brazil
| | - Valéria Veras de Paula
- Department of Animal Science, Universidade Federal Rural do Semi-Árido, 572, Rua Francisco Mota, Presidente Costa e Silva, Mossoró, RN 59625-900, Brazil.
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Monaco F, D'Andria Ursoleo J, Lerose CC, Barucco G, Licheri M, Della Bella PE, Fioravanti F, Gulletta S. Anaesthetic management of paediatric patients undergoing electrophysiology study and ablation for supraventricular tachycardia: A focused narrative review. J Clin Anesth 2024; 93:111361. [PMID: 38118231 DOI: 10.1016/j.jclinane.2023.111361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/21/2023] [Accepted: 12/11/2023] [Indexed: 12/22/2023]
Abstract
Every year, 80,000-100,000 ablation procedures take place in the United States and approximately 1% of these involve paediatric patients. As the paediatric population undergoing catheter ablation to treat dysrhythmia is constantly growing, involvement of anaesthesiologists in the cardiac electrophysiology laboratory is simultaneously increasing. Compared with the adult population, paediatric patients need deeper sedation or general anaesthesia (GA) to guarantee motionlessness and preserve comfort. As a result, the anaesthesiologist working in this setting should keep in mind heart physiopathology as well as possible interactions between anaesthetic drugs and arrhythmia. In fact, drug-induced suppression of accessory pathways (APs) conduction capacity is a major concern for completing a successful electrophysiology study (EPS). Nevertheless, the literature on this topic is scarce and the optimal type of anaesthesia in EPS and ablation procedures in children is still controversial. Thus, the main goal of the present review is to collect the literature published so far on the effects on cardiac conduction tissue of the drugs commonly employed for sedation/GA in the cath lab for EPS and ablation procedures to treat supraventricular tachycardia in patients aged <18 years.
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Affiliation(s)
- Fabrizio Monaco
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy.
| | - Jacopo D'Andria Ursoleo
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Gaia Barucco
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Margherita Licheri
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Paolo Emilio Della Bella
- Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Francesco Fioravanti
- Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Simone Gulletta
- Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy
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Duan S, Zhou S. Dexmedetomidine and Perioperative Arrhythmias. J Cardiothorac Vasc Anesth 2024; 38:1221-1227. [PMID: 38443205 DOI: 10.1053/j.jvca.2024.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 12/13/2023] [Accepted: 01/08/2024] [Indexed: 03/07/2024]
Abstract
The highly selective α2-adrenoceptor agonist dexmedetomidine is a commonly used sedative drug for patients undergoing anesthesia and intensive care treatment. Several studies have indicated that dexmedetomidine may have a potential role in preventing and treating perioperative tachyarrhythmias. However, the specific effect and mechanism of action of dexmedetomidine in this context remain unclear. Dexmedetomidine is known to regulate the electrophysiologic function of the myocardium by inhibiting the function of the sinus node and atrioventricular node, as well as affecting myocardial repolarization. This paper aims to provide a theoretical basis for the prevention and treatment of perioperative arrhythmias by summarizing the effects of dexmedetomidine on myocardial electrophysiologic function and its impact on different types of arrhythmias.
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Affiliation(s)
- Shengji Duan
- Department of Anesthesiology, The Second People's Hospital of Yibin, Sichuan, China
| | - Shuzhi Zhou
- Department of Anesthesiology, Ya 'an People Hospital, Ya 'an, Sichuan, China.
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Bernardini A, Paoletti Perini A, Padeletti M, Signorini U, Ciliberti D, Poli C, Milli M, Giomi A. Impact of dexmedetomidine on electrophysiological properties and arrhythmia inducibility in adult patients referred for reentrant supraventricular tachycardia ablation. J Interv Card Electrophysiol 2024; 67:371-378. [PMID: 37773558 DOI: 10.1007/s10840-023-01640-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/01/2023] [Indexed: 10/01/2023]
Abstract
BACKGROUND Drugs used for sedation/analgesia may affect the basic cardiac electrophysiologic properties or even supraventricular tachycardia (SVT) inducibility. Dexmedetomidine (DEX) is a selective alpha-2 adrenergic agonist with sedative and analgesic properties. A comprehensive evaluation on use of DEX for reentrant SVT ablation in adults is lacking. The present study aims to systematically assess the impact of DEX on cardiac electrophysiology and SVT inducibility. METHODS Hemodynamic, electrocardiographic, and electrophysiological parameters and SVT inducibility were assessed before and after DEX infusion in patients scheduled for ablation of reentrant SVT. RESULTS The population of this prospective observational study included 55 patients (mean age of 58.7 ± 14 years, 29 males [52.7%]). A decrease in systolic and diastolic blood pressure and in heart rate was observed after DEX infusion (p = 0.001 for all). DEX increased corrected sinus node refractory time, atrial effective refractory period, AH interval, AV Wenckebach cycle length, and AV node effective refractory period without affecting the His-Purkinje conduction or ventricular myocardium refractoriness. No AV blocks or sinus arrests occurred during DEX infusion. Globally, there was no difference in SVT inducibility in basal condition or after DEX infusion (46/55 [83.6%] vs. 43/55 [78.1%] patients; p = 0.55), without a difference in isoprenaline use (p = 1.0). In 4 (7.3%) cases, the SVT was inducible only after DEX infusion. In 34.5% of cases, DEX infusion unmasked the presence of an obstructive sleeping respiratory pattern, represented mainly by snoring. CONCLUSIONS DEX depresses sinus node function and prolongs atrioventricular refractoriness without significantly affecting the rate of SVT inducibility in patients scheduled for reentrant SVT ablation.
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Affiliation(s)
- Andrea Bernardini
- Cardiology and Electrophysiology Unit, Santa Maria Nuova Hospital, Piazza di Santa Maria Nuova 1, Florence, Italy.
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
| | - Alessandro Paoletti Perini
- Cardiology and Electrophysiology Unit, Santa Maria Nuova Hospital, Piazza di Santa Maria Nuova 1, Florence, Italy
| | - Margherita Padeletti
- Cardiology and Electrophysiology Unit, Santa Maria Nuova Hospital, Piazza di Santa Maria Nuova 1, Florence, Italy
| | - Umberto Signorini
- Cardiology and Electrophysiology Unit, Santa Maria Nuova Hospital, Piazza di Santa Maria Nuova 1, Florence, Italy
| | - Davide Ciliberti
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Claudio Poli
- Anesthesiology Unit, Santa Maria Nuova Hospital, Florence, Italy
| | - Massimo Milli
- Cardiology and Electrophysiology Unit, Santa Maria Nuova Hospital, Piazza di Santa Maria Nuova 1, Florence, Italy
| | - Andrea Giomi
- Cardiology and Electrophysiology Unit, Santa Maria Nuova Hospital, Piazza di Santa Maria Nuova 1, Florence, Italy
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Buschmann E, Van Steenkiste G, Boussy T, Vernemmen I, Schauvliege S, Decloedt A, van Loon G. Three-dimensional electro-anatomical mapping and radiofrequency ablation as a novel treatment for atrioventricular accessory pathway in a horse: A case report. J Vet Intern Med 2023; 37:728-734. [PMID: 36866668 PMCID: PMC10061177 DOI: 10.1111/jvim.16668] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 02/07/2023] [Indexed: 03/04/2023] Open
Abstract
We describe the diagnosis and treatment of an atrioventricular accessory pathway (AP) in a horse using 3-dimensional electro-anatomical mapping (3D EAM) and radiofrequency catheter ablation (RFCA). During routine evaluation of the horse, intermittent ventricular pre-excitation was identified on the ECG, characterized by a short PQ interval and abnormal QRS morphology. A right cranial location of the AP was suspected from the 12-lead ECG and vectorcardiography. After precise localization of the AP using 3D EAM, ablation was performed and AP conduction was eliminated. Immediately after recovery from anesthesia an occasional pre-excited complex still was observed, but a 24-hour ECG and an ECG during exercise 1 and 6 weeks after the procedure showed complete disappearance of pre-excitation. This case shows the feasibility of 3D EAM and RFCA to identify and treat an AP in horses.
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Affiliation(s)
- Eva Buschmann
- Equine Cardioteam Ghent, Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
| | - Glenn Van Steenkiste
- Equine Cardioteam Ghent, Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
| | - Tim Boussy
- Department of CardiologyAZ GroeningeKortrijkBelgium
| | - Ingrid Vernemmen
- Equine Cardioteam Ghent, Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
| | - Stijn Schauvliege
- Department of Large Animal Surgery, and Anaesthesia and Orthopaedics, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
| | - Annelies Decloedt
- Equine Cardioteam Ghent, Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
| | - Gunther van Loon
- Equine Cardioteam Ghent, Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
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Lichtsinn K, Sehgal I, Wilson A. Asystole in 2 Pediatric Patients During Dexmedetomidine Infusion. J Pharm Pract 2023; 36:176-179. [PMID: 34165021 DOI: 10.1177/08971900211027133] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Bradycardia is a known side effect of dexmedetomidine. Reports of sinus pauses or asystole, however, are rare. We present 2 cases of pediatric patients who developed asystole on a dexmedetomidine infusion. SUMMARY OF CASES An 8-week-old male with RSV bronchiolitis and acute hypoxemic respiratory failure was started on dexmedetomidine for sedation at 0.2 mcg/kg/h with a maximum dose of 0.7mcg/kg/h. On Hospital day (HD) 4, on dexmedetomidine at 0.7 mcg/kg/h, he developed intermittent episodes of bradycardia with heart rates in the 60 s. Echocardiogram on HD 6 showed normal function. On HD 7, he began having periods of asystole lasting up to 6 seconds. Dexmedetomidine was discontinued, with the resolution of episodes of asystole after 6 hours. A 27-month-old male with a congenital left diaphragmatic hernia and pulmonary hypertension who had been weaned off sildenafil 6 months earlier underwent re-repair of left diaphragmatic hernia. Postoperatively he remained intubated and paralyzed. Dexmedetomidine was started at 0.3 mcg/kg/h for sedation, with a maximum dose of 1.2 mcg/kg/h. An echocardiogram on HD 3 showed good function with mild to moderate pulmonary hypertension. That evening, with dexmedetomidine at 1.1 mcg/kg/h, he developed a 15 second period of asystole requiring CPR. Dexmedetomidine was discontinued, and he was started on a midazolam infusion with no further episodes. DISCUSSION Both cases occurred in patients without cardiac conduction defects or on negative chronotropic or sympatholytic medications that have been associated with dexmedetomidine-induced asystole. We hypothesize that both episodes of asystole were due to increased patient-related vagal tone exacerbated by dexmedetomidine.
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Affiliation(s)
- Katrin Lichtsinn
- Pediatrics, 377659University of Texas at Austin Dell Medical School Program, Austin, TX, USA
| | - Ila Sehgal
- Pediatrics, 377659University of Texas at Austin Dell Medical School Program, Austin, TX, USA
| | - Alexandra Wilson
- Division of Critical Care, Department of Pediatrics, Dell Medical School, 377659University of Texas at Austin Dell Children's Ascension, Austin, TX, USA
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Yin YQ, Zhong Y, Zhu Y, Tian L. Changes in gap junction proteins Connexin30.2 and Connexin40 expression in the sinoatrial node of rats with dexmedetomidine-induced sinus bradycardia. BRAZILIAN JOURNAL OF ANESTHESIOLOGY (ELSEVIER) 2022; 72:768-773. [PMID: 35618083 PMCID: PMC9659980 DOI: 10.1016/j.bjane.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 05/12/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Dexmedetomidine (Dex) is widely used, and its most common side effect is bradycardia. The complete mechanism through which Dex induces bradycardia has not been elucidated. This research investigates the expression of gap junction proteins Connexin30.2 (Cx30.2) and Connexin40 (Cx40) within the sinoatrial node of rats with Dex-induced sinus bradycardia. METHODS Eighty rats were randomly assigned to five groups. Saline was administered to rats in Group C. In the other four groups, the rats were administered Dex to induce bradycardia. In groups D1 and D2, the rats were administered Dex at a loading dose of 30 μg.kg-1 and 100 μg.kg-1 for 10 min, then at 15 μg.kg-1.h-1 and 50 μg.kg-1.h-1 for 120 min separately. The rats in group D1A and D2A were administered Dex in the same way as in group D1 and D2; however, immediately after the administration of the loading dose, 0.5 mg atropine was administered intravenously, and then at 0.5 mg.kg-1.h-1 for 120 min. The sinoatrial node was acquired after intravenous infusion was completed. Quantitative real-time polymerase chain reaction and western blot analyses were performed to measure mRNA and protein expression of Cx30.2 and Cx40, respectively. RESULTS The expression of Cx30.2 increased, whereas the expression of Cx40 decreased within the sinoatrial node of rats with Dex-induced sinus bradycardia. Atropine reversed the effects of Dex on the expression of gap junction proteins. CONCLUSION Dex possibly altered the expression of gap junction proteins to slow down cardiac conduction velocity in the sinoatrial node.
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Affiliation(s)
| | - Yi Zhong
- Affiliated Hospital of Guizhou Medical University, Department of Anesthesiology, Guiyang, China.
| | - Yu Zhu
- Guizhou Medical University, Guiyang, China
| | - Lei Tian
- Guizhou Medical University, Guiyang, China
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Tan C, Yan S, Shen J, Wu H, Yu L, Wang Y, Tian S, Zhou W, Wu Y, Zhang Z. Effects of dexmedetomidine on cardiac electrophysiology in patients undergoing general anesthesia during perioperative period: a randomized controlled trial. BMC Anesthesiol 2022; 22:271. [PMID: 36008759 PMCID: PMC9404616 DOI: 10.1186/s12871-022-01811-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 07/18/2022] [Indexed: 11/29/2022] Open
Abstract
Background Dexmedetomidine has controversial influence on cardiac electrophysiology. The aim of this study was to explore the effects of dexmedetomidine on perioperative cardiac electrophysiology in patients undergoing general anesthesia. Methods Eighty-one patients were randomly divided into four groups: groups D1, D2, D3 receiving dexmedetomidine 1, 1, 0.5 μg/kg over 10 min and 1, 0.5, 0.5 μg/kg/h continuous infusion respectively, and control group (group C) receiving normal saline. Twelve-lead electrocardiograms were recorded at the time before dexmedetomidine/normal saline infusion (T1), loading dose finish (T2), surgery ending (T6), 1 h (T7) after entering PACU, 24 h (T8), 48 h (T9), 72 h (T10) and 1 month (T11) postoperatively. Cardiac circulation efficiency (CCE) were also recorded. Results Compared with group C, QTc were significantly increased at T2 in groups D1 and D2 while decreased at T7 and T8 in group D3 (P < 0.05), iCEB were decreased at T8 (P < 0.05). Compared with group D1, QTc at T2, T6, T7, T9 and T10 and iCEB at T8 were decreased, and CCE at T2-T4 were increased in group D3 significantly (P < 0.05). Compared with group D2, QTc at T2 and iCEB at T8 were decreased and CCE at T2 and T3 were increased in group D3 significantly (P < 0.05). Conclusions Dexmedetomidine at a loading dose of 0.5 μg/kg and a maintenance dose of 0.5 μg/kg/h can maintain stability of cardiac electrophysiology during perioperative period and has no significant adverse effects on CCE. Trial registration ClinicalTrials.gov NCT04577430 (Date of registration: 06/10/2020).
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Affiliation(s)
- Chao Tan
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Shiting Yan
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China.,Graduate School, Dalian Medical University, Dalian, 116000, China
| | - Jie Shen
- Department of Cardiac Function, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Hao Wu
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Leyang Yu
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China.,Graduate School, Dalian Medical University, Dalian, 116000, China
| | - Ying Wang
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China.,Graduate School, Dalian Medical University, Dalian, 116000, China
| | - Shunping Tian
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Wei Zhou
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Yong Wu
- Department of Cardiac Function, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Zhuan Zhang
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China.
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Nissen SD, Weis R, Krag-Andersen EK, Hesselkilde EM, Isaksen JL, Carstensen H, Kanters JK, Linz D, Sanders P, Hopster-Iversen C, Jespersen T, Pehrson S, Buhl R. Electrocardiographic characteristics of trained and untrained standardbred racehorses. J Vet Intern Med 2022; 36:1119-1130. [PMID: 35488721 PMCID: PMC9151491 DOI: 10.1111/jvim.16427] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 04/01/2022] [Accepted: 04/02/2022] [Indexed: 11/28/2022] Open
Abstract
Background Long‐term exercise induces cardiac remodeling that potentially influences the electrical properties of the heart. Hypothesis/objectives We assessed whether training alters cardiac conduction in Standardbred racehorses. Animals Two hundred one trained and 52 untrained Standardbred horses. Methods Cross‐sectional study. Resting ECG recordings were analyzed to assess heart rate (HR) along with standard ECG parameters and for identification of atrial and ventricular arrhythmias. An electrophysiological study was performed in 13 horses assessing the effect of training on sinoatrial (SA) and atrioventricular (AV) nodal function by sinus node recovery time (SNRT) and His signal recordings. Age and sex adjustments were implemented in multiple and logistic regression models for comparison. Results Resting HR in beats per minute (bpm) was lower in trained vs untrained horses (mean, 30.8 ± 2.6 bpm vs 32.9 ± 4.2 bpm; P = .001). Trained horses more often displayed second‐degree atrioventricular block (2AVB; odds ratio, 2.59; P = .04). No difference in SNRT was found between groups (n = 13). Mean P‐A, A‐H, and H‐V intervals were 71 ± 20, 209 ± 41, and 134 ± 41 ms, respectively (n = 7). We did not detect a training effect on AV‐nodal conduction intervals. His signals were present in 1 horse during 2AVB with varying H‐V interval preceding a blocked beat. Conclusions and Clinical Importance We identified decreased HR and increased frequency of 2AVB in trained horses. In 5 of 7 horses, His signal recordings had variable H‐V intervals within each individual horse, providing novel insight into AV conduction in horses.
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Affiliation(s)
- Sarah D Nissen
- Laboratory of Cardiac Physiology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Rikke Weis
- Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Taastrup, Denmark
| | - Elisabeth K Krag-Andersen
- Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Taastrup, Denmark
| | - Eva M Hesselkilde
- Laboratory of Cardiac Physiology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jonas L Isaksen
- Laboratory of Experimental Cardiology, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Helena Carstensen
- Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Taastrup, Denmark
| | - Jørgen K Kanters
- Laboratory of Experimental Cardiology, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Dominik Linz
- Laboratory of Cardiac Physiology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Cardiology, Maastricht University Medical Center, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands.,Department of Cardiology, Radboud University Medical Center, Nijmegen, The Netherlands.,Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Prashanthan Sanders
- Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Charlotte Hopster-Iversen
- Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Taastrup, Denmark
| | - Thomas Jespersen
- Laboratory of Cardiac Physiology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Steen Pehrson
- Department of Cardiology 2142, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Rikke Buhl
- Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Taastrup, Denmark
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12
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Janson CM, Shah MJ, Kennedy KF, Iyer VR, Sweeten TL, Glatz AC, Steven JM, O'Byrne ML. Comparison of Outcomes of Pediatric Catheter Ablation by Anesthesia Strategy: A Report From the NCDR IMPACT Registry. Circ Arrhythm Electrophysiol 2021; 14:e009849. [PMID: 34137629 DOI: 10.1161/circep.121.009849] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Christopher M Janson
- Division of Cardiology, Department of Pediatrics (C.M.J., M.J.S., V.R.I., T.L.S., A.C.G., M.L.O.)
| | - Maully J Shah
- Division of Cardiology, Department of Pediatrics (C.M.J., M.J.S., V.R.I., T.L.S., A.C.G., M.L.O.)
| | - Kevin F Kennedy
- University of Pennsylvania. Mid America Heart Institute, St Luke's Health System, Kansas City, MO (K.F.K.)
| | - V Ramesh Iyer
- Division of Cardiology, Department of Pediatrics (C.M.J., M.J.S., V.R.I., T.L.S., A.C.G., M.L.O.)
| | - Tammy L Sweeten
- Division of Cardiology, Department of Pediatrics (C.M.J., M.J.S., V.R.I., T.L.S., A.C.G., M.L.O.)
| | - Andrew C Glatz
- Division of Cardiology, Department of Pediatrics (C.M.J., M.J.S., V.R.I., T.L.S., A.C.G., M.L.O.).,Center for Pediatric Clinical Effectiveness, The Children's Hospital of Philadelphia (A.C.G., M.L.O.)
| | - James M Steven
- Department of Anesthesia and Critical Care, Department of Anesthesia (J.M.S.)
| | - Michael L O'Byrne
- Division of Cardiology, Department of Pediatrics (C.M.J., M.J.S., V.R.I., T.L.S., A.C.G., M.L.O.).,Center for Pediatric Clinical Effectiveness and Leonard Davis Institute and Center for Cardiovascular Outcomes, Quality, and Evaluative Research (M.L.O.).,Center for Pediatric Clinical Effectiveness, The Children's Hospital of Philadelphia (A.C.G., M.L.O.)
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13
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Ye Q, Wang F, Xu H, Wu L, Gao X. Effects of dexmedetomidine on intraoperative hemodynamics, recovery profile and postoperative pain in patients undergoing laparoscopic cholecystectomy: a randomized controlled trial. BMC Anesthesiol 2021; 21:63. [PMID: 33648441 PMCID: PMC7919082 DOI: 10.1186/s12871-021-01283-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 02/16/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To investigate the optimal dose of dexmedetomidine to maintain hemodynamic stability, prevent of cough and minimize postoperative pain for patients undergoing laparoscopic cholecystectomy. METHODS One hundred twenty patients were randomly divided into D1, D2, D3 and NS groups, and dexmedetomidine 0.4, 0.6, 0.8μg/kg and normal saline were administrated respectively. Patients' heart rate, systolic blood pressure and diastolic blood pressure were measured at T1-T7. The incidence of cough was recorded. Other parameters were noted, the time of spontaneous respiratory recovery and extubation, visual analogue scale scores and dosage of tramadol. RESULTS The heart rate, systolic blood pressure and diastolic blood pressure of D2 and D3 groups has smaller fluctuations at T2-3 and T7 compared with NS and D1 groups (P < 0.05). The incidence of cough was lower in D2 and D3 groups than NS group (P < 0.05). The visual analogue scale scores and tramadol dosage of D2 and D3 groups were lower than NS group (P < 0.05). The time of spontaneous respiratory recovery and extubation in D3 group was longer than that in D1 and D2 groups (P < 0.05). CONCLUSIONS Intravenous infusion of 0.6μg/kg dexmedetomidine before induction can maintain hemodynamic stability, decrease cough during emergence, relieve postoperative pain of patients undergoing laparoscopic cholecystectomy. TRIAL REGISTRATION ChiCTR1900024801 , registered at the Chinese Clinical Trial Registry, principal investigator: Qin Ye, date of registration: July 28, 2019.
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Affiliation(s)
- Qin Ye
- North Sichuan Medical College, No. 234, Fujiang Road, Shunqing District, Nanchong City, Sichuan Province, China
| | - Fangjun Wang
- Affiliated Hospital of North Sichuan Medical College, No. 63, Wenhua Road, Shunqing District, Nanchong City, Sichuan Province, China.
| | - Hongchun Xu
- North Sichuan Medical College, No. 234, Fujiang Road, Shunqing District, Nanchong City, Sichuan Province, China
| | - Le Wu
- North Sichuan Medical College, No. 234, Fujiang Road, Shunqing District, Nanchong City, Sichuan Province, China
| | - Xiaopei Gao
- North Sichuan Medical College, No. 234, Fujiang Road, Shunqing District, Nanchong City, Sichuan Province, China
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14
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Slupe AM, Minnier J, Raitt MH, Zarraga IGE, MacMurdy KS, Jessel PM. Dexmedetomidine Sedation for Paroxysmal Supraventricular Tachycardia Ablation Is Not Associated With Alteration of Arrhythmia Inducibility. Anesth Analg 2019; 129:1529-1535. [PMID: 31743172 DOI: 10.1213/ane.0000000000003359] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Dexmedetomidine (Dex) is an attractive agent for procedural sedation due to its unique pharmacodynamic profile, specifically affording predictable sedation without concurrent respiratory depression. However, Dex has previously been reported to prevent or terminate arrhythmias. The purpose of this study was to investigate paroxysmal supraventricular tachycardia (PSVT) inducibility and homeostatic stability during electrophysiology studies (EPSs) and ablation when a standardized Dex protocol was used as the primary sedation agent. METHODS We performed a retrospective review of 163 consecutive procedures for PSVT ablation that received Dex as the primary sedative with adjunct fentanyl and midazolam boluses (DEX-FENT-MIDAZ). This cohort was compared to 163 consecutive control procedures wherein strictly fentanyl and midazolam were used for sedation. The primary outcome reviewed was PSVT inducibility assessed before ablation. Reviewed secondary outcomes included level of sedation and intraprocedure hemodynamics and oxygenation. RESULTS The arrhythmia profiles of the DEX-FENT-MIDAZ and control cohorts were very similar. The overall incidence of a "negative" EPSs in which arrhythmia was not induced was 24% in the DEX-FENT-MIDAZ group and 26% in the control group (P = .7). Unintended deep sedation was significantly less with DEX-FENT-MIDAZ (4.3% vs 27%; P ≤ .0001). However, DEX-FENT-MIDAZ use was associated with a higher incidence of intraprocedure hypotension. CONCLUSIONS Dex sedation during EPSs is not associated with a reduction in PSVT inducibility. The therapeutic utility of Dex during EPS arises from the predictable sedation Dex affords but is associated with an increased incidence of intraprocedure hypotension.
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Affiliation(s)
- Andrew M Slupe
- From the Department of Anesthesiology and Perioperative Medicine, Oregon Health & Science University (OHSU), Portland, Oregon
| | - Jessica Minnier
- Division of Biostatistics, OHSU-Portland State University (PSU) School of Public Health, Portland, Oregon
| | - Merritt H Raitt
- Division of Cardiology, Veterans Affairs Portland Health Care System, Portland, Oregon
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon
| | - Ignatius Gerardo E Zarraga
- Division of Cardiology, Veterans Affairs Portland Health Care System, Portland, Oregon
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon
| | - Karen S MacMurdy
- Division of Cardiology, Veterans Affairs Portland Health Care System, Portland, Oregon
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon
| | - Peter M Jessel
- Division of Cardiology, Veterans Affairs Portland Health Care System, Portland, Oregon
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon
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15
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Vladinov G, Fermin L, Longini R, Ramos Y, Maratea E. Choosing the anesthetic and sedative drugs for supraventricular tachycardia ablations: A focused review. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2018; 41:1555-1563. [DOI: 10.1111/pace.13511] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 08/21/2018] [Accepted: 08/22/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Greta Vladinov
- School of Nursing and Health Studies; University of Miami Health System; Miami FL USA
| | - Lilibeth Fermin
- Department of Anesthesiology, Miller School of Medicine; University of Miami Health System; Miami FL USA
| | - Renee Longini
- School of Nursing and Health Studies; University of Miami Health System; Miami FL USA
| | - Yanett Ramos
- School of Nursing and Health Studies; University of Miami Health System; Miami FL USA
| | - Edward Maratea
- Department of Anesthesiology, Miller School of Medicine; University of Miami Health System; Miami FL USA
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16
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Trachsel DS, Tejada MA, Groesfjeld Christensen V, Pedersen PJ, Kanters JK, Buhl R, Calloe K, Klaerke DA. Effects of trimethoprim-sulfadiazine and detomidine on the function of equine Kv
11.1 channels in a two-electrode voltage-clamp (TEVC) oocyte model. J Vet Pharmacol Ther 2018; 41:536-545. [DOI: 10.1111/jvp.12502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 02/22/2018] [Indexed: 02/03/2023]
Affiliation(s)
- D. S. Trachsel
- Department of Veterinary and Animal Science; Faculty of Health and Medical Sciences; University of Copenhagen; Frederiksberg Denmark
- Department of Veterinary Clinical Sciences; Faculty of Health and Medical Sciences; University of Copenhagen; Taastrup Denmark
| | - M. A. Tejada
- Department of Veterinary and Animal Science; Faculty of Health and Medical Sciences; University of Copenhagen; Frederiksberg Denmark
| | - V. Groesfjeld Christensen
- Department of Veterinary and Animal Science; Faculty of Health and Medical Sciences; University of Copenhagen; Frederiksberg Denmark
| | - P. J. Pedersen
- Department of Veterinary and Animal Science; Faculty of Health and Medical Sciences; University of Copenhagen; Frederiksberg Denmark
| | - J. K. Kanters
- Laboratory of Experimental Cardiology; Department of Biomedical Sciences; Faculty of Health and Medical Sciences; University of Copenhagen; Copenhagen Denmark
| | - R. Buhl
- Department of Veterinary Clinical Sciences; Faculty of Health and Medical Sciences; University of Copenhagen; Taastrup Denmark
| | - K. Calloe
- Department of Veterinary and Animal Science; Faculty of Health and Medical Sciences; University of Copenhagen; Frederiksberg Denmark
| | - D. A. Klaerke
- Department of Veterinary and Animal Science; Faculty of Health and Medical Sciences; University of Copenhagen; Frederiksberg Denmark
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18
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Tirotta CF, Nguyen T, Fishberger S, Velis E, Olen M, Lam L, Madril DR, Hughes J, Lagueruela RG. Dexmedetomidine use in patients undergoing electrophysiological study for supraventricular tachyarrhythmias. Paediatr Anaesth 2017; 27:45-51. [PMID: 27779344 DOI: 10.1111/pan.13019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/05/2016] [Indexed: 12/31/2022]
Abstract
BACKGROUND Dexmedetomidine is a selective alpha-2 adrenergic agonist with sedative, analgesic, and anxiolytic properties. Dexmedetomidine has not been approved for use in pediatrics. Dexmedetomidine has been reported to depress sinus node and atrioventricular nodal function in pediatric patients; it has been suggested that the use of dexmedetomidine may not be desirable during electrophysiological studies. AIM We hypothesize that the use of dexmedetomidine does not inhibit the induction of supraventricular tachyarrhythmias (SVT) during electrophysiological studies and does not inhibit the ablation of such arrhythmias. METHODS In this retrospective, observational cohort study, we reviewed all cases presenting to the cardiac catheterization laboratory for diagnosis or treatment of SVT since 2007. All cases were performed by the same electrophysiologist. The anesthesia was provided by one of the three cardiac anesthesiologists. One cardiac anesthesiologist did not use dexmedetomidine during electrophysiological studies. A second used dexmedetomidine, but only with an infusion. The third used dexmedetomidine with a primary bolus and an infusion. Thus, the patients were stratified into three different groups: Group 1 patients did not receive any dexmedetomidine. Group 2 patients received a dexmedetomidine infusion of 0.5-1 μg·kg-1 ·h-1 . Group 3 patients received a dexmedetomidine infusion of 0.5-1 μg·kg-1 ·h-1 and a dexmedetomidine bolus prior to the infusion of 0.5-1 μg·kg-1 . We then compared those patients for the following variables: demographic data including age, sex, height, weight; anesthetic data such as, mask vs intravenous induction, identity of induction agent, amount of sevoflurane and propofol used; amount of dexmedetomidine used; presence of congenital heart disease and other comorbidities; the need for isoproterenol and dose, the need for adenosine and dose, and the need for any other medications to affect rhythm both before and after radiofrequency ablation; the ability to induce the arrhythmia, the type of arrhythmia, the presence of Wolff-Parkinson-White syndrome, the presence of an accessory pathway, the ablation rate, and the recurrence rate. RESULTS There was no difference in the anesthetic agents, except there was a lesser amount of propofol used in the dexmedetomidine groups (χ2(2) = 48.2, P < 0.001). There was no difference in the electrophysiological parameters among groups, except the Group 1 patients did require the use of isoproterenol in the preablation period less often compared to the dexmedetomidine groups (χ2(2) = 15.2, P < 0.01). However, with the greater use of isoproterenol, there was no difference in the ability to induce the arrhythmia. Moreover, the percentage of patients ablated, and the recurrence rate among groups was the same. CONCLUSIONS We conclude that dexmedetomidine does not interfere with the conduct of electrophysiological studies for SVT and the successful ablation of such arrhythmias. However, dexmedetomidine use did result in a greater need for isoproterenol.
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Affiliation(s)
| | - Tuan Nguyen
- Cardiology, The Heart Program, Nicklaus Children's Hospital, Miami, FL, USA
| | - Steven Fishberger
- Cardiology, The Heart Program, Nicklaus Children's Hospital, Miami, FL, USA
| | - Evelio Velis
- College of Health Sciences, Barry University, Miami, FL, USA
| | - Melissa Olen
- Cardiology, The Heart Program, Nicklaus Children's Hospital, Miami, FL, USA
| | - Lourdes Lam
- Cardiology, The Heart Program, Nicklaus Children's Hospital, Miami, FL, USA
| | - Danielle R Madril
- Cardiac Anesthesia, The Heart Program, Nicklaus Children's Hospital, Miami, FL, USA
| | - Jessica Hughes
- Cardiac Anesthesia, The Heart Program, Nicklaus Children's Hospital, Miami, FL, USA
| | - Richard G Lagueruela
- Cardiac Anesthesia, The Heart Program, Nicklaus Children's Hospital, Miami, FL, USA
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19
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Gong M, Man Y, Fu Q. Incidence of bradycardia in pediatric patients receiving dexmedetomidine anesthesia: a meta-analysis. Int J Clin Pharm 2016; 39:139-147. [DOI: 10.1007/s11096-016-0411-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 12/08/2016] [Indexed: 11/28/2022]
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20
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Dexmedetomidine Depresses Sinoatrial and Atrioventricular Nodal Function Without Any Change in Atrial Fibrillation Inducibility. J Cardiovasc Pharmacol 2016; 68:473-478. [DOI: 10.1097/fjc.0000000000000434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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