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1.
Arch Sex Behav ; 53(3): 1001-1013, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38267597

RESUMEN

Some people believe rape is just as serious as homicide, or more serious, contrary to law. We examined the prevalence of this belief and whether it reflects an individual's political ideology and moral foundations. Analyses were based on a national YouGov survey of 1,125 US adults gathered in 2021. We found that only 26% of respondents believed rape was less serious than homicide. Most (61%) believed rape and homicide were equally serious, while 13% believed rape was more serious. Social progressives (particularly progressive women) were more likely than social conservatives to view rape as more serious or just as serious as homicide. However, this tendency was partially offset by the tendency of social progressives to view harm as a key factor in judging the morality of a behavior. We suggest that social progressives view rape more seriously than social conservatives because of their concern for gender inequality, but this concern is partially offset by their concern with harm.


Asunto(s)
Violación , Adulto , Humanos , Femenino , Homicidio , Principios Morales , Política
2.
Pediatr Cardiol ; 45(2): 441-445, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38145427

RESUMEN

Clinically significant bradycardia is an uncommon problem in children, but one that can cause significant morbidity and sometimes necessitates implantation of a pacemaker. The most common causes of bradycardia are complete heart block (CHB), which can be congenital or acquired, and sinus node dysfunction, which is rare in children with structurally normal hearts. Pacemaker is indicated as therapy for the majority of children with CHB, and while early mortality is lower in postnatally diagnosed CHB than in fetal CHB, it is still up to 16%. In young children, less invasive transvenous pacemaker systems can be technically challenging to place and carry a high risk of complications, often necessitating surgical epicardial pacemaker placement, which usually entails a median sternotomy. We report three cases of pediatric patients referred for pacemaker implantation for different types of bradycardia, treated at our institution with oral albuterol with therapeutic results that avoided the need for surgical pacemaker implantation at that time.


Asunto(s)
Bradicardia , Marcapaso Artificial , Humanos , Niño , Preescolar , Bradicardia/tratamiento farmacológico , Bradicardia/etiología , Estimulación Cardíaca Artificial/métodos , Marcapaso Artificial/efectos adversos , Síndrome del Seno Enfermo/tratamiento farmacológico , Síndrome del Seno Enfermo/complicaciones , Administración Oral
3.
Pediatr Cardiol ; 44(7): 1529-1535, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37658175

RESUMEN

Little is known about the outcomes of children with second-degree heart block. We aimed to determine whether children with structurally normal hearts and Mobitz 1, 2:1 block or Mobitz 2 are at increased risk for progressing to complete heart block (CHB) or requiring a pacemaker (PM) at long-term follow-up. We searched our institutional electrophysiology database for children with potentially concerning second-degree block on ambulatory rhythm monitoring between 2009 and 2021, defined as frequent episodes of Mobitz 1 or 2:1 block, episodes of Mobitz 1 or 2:1 block with additional evidence of conduction disease (i.e. first-degree heart block, bundle branch block), or episodes of Mobitz 2. Ambulatory rhythm monitor, ECG, and demographic data were reviewed. The primary composite outcome was CHB on follow-up rhythm monitor or PM placement. 20 patients were in the final analysis. Six (30%) patients either developed CHB but do not have a PM (4 = 20%) or have a PM (2 = 10%). Median follow-up was 5.8 years (IQR 4.4-7.0). Patients with CHB or PM were more likely to have second-degree block at maximum sinus rate (67% vs. 0%, p = 0.003), a below normal average heart rate (67% vs. 14%, p = 0.04), and 2:1 block on initial ECG (50% vs. 0%, p = 0.02). In this study of children with potentially concerning second-degree block, 30% of patients progressed to CHB or required a PM. Second-degree block at maximum sinus rate, a low average heart, and 2:1 block on initial ECG were associated with increased risk of disease progression.


Asunto(s)
Bloqueo Atrioventricular , Humanos , Niño , Estudios de Seguimiento , Trastorno del Sistema de Conducción Cardíaco , Corazón , Bloqueo de Rama/diagnóstico , Bloqueo de Rama/terapia
4.
Pediatr Cardiol ; 44(3): 689-694, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36056945

RESUMEN

The AliveCor KardiaMobile (ACKM) is a remote electrocardiogram (ECG) monitoring device. Little research has been conducted on its accuracy with pediatric patients. This prospective study aims to compare the ACKM six-lead device with a standard fifteen-lead ECG in measuring the QTc, QRS, and axis in pediatric patients. Pediatric patients ages 5 to 21 years were enrolled prospectively to have their ECG recorded using an ACKM six-lead device following a recording with the standard 15-lead ECG. A pediatric electrophysiologist measured the QTc, QRS interval, and QRS axis for both ECGs. Bland-Altman analysis was performed to assess agreement among measurements. The study included 141 patients. The mean age was 12.3 ± 4.4 years. Average heart rate was 79 ± 16 bpm. The mean difference in the QTc measurements for a paired standard ECG and ACKM was - 0.6 ms [95% confidence interval - 48 to 47 ms]. Of the ACKM QTc measurements, 117 (83%) were within 30 ms of the standard ECG. The mean difference in paired QRS measurements was - 1.3 ms [95% confidence interval - 23 to 21 ms]. Of the ACKM QRS measurements, 134 (95%) were within 20 ms of the standard ECG. The measured axis was the same for 84% of ACKM and standard ECGs. Over 80% of the ACKM six-lead ECGs produced QTc, QRS, and axis deviation measurements within a clinically useful range of the standard ECG. However, it is not accurate enough to be used consistently in place of a standard ECG for QTc and QRS measurement for pediatric patients.


Asunto(s)
Electrocardiografía , Humanos , Niño , Adolescente , Preescolar , Adulto Joven , Adulto , Estudios Prospectivos
5.
Cardiol Young ; : 1-5, 2023 Jun 13.
Artículo en Inglés | MEDLINE | ID: mdl-37309199

RESUMEN

BACKGROUND: Wolff-Parkinson-White syndrome is associated with sudden cardiac death from rapid conduction through the accessory pathway in atrial fibrillation. Adult patients are at higher risk for sudden cardiac death if the shortest-pre-excited-RR-interval in atrial fibrillation (SPERRI) is ≤250 milliseconds (msec) during electrophysiologic study. Exclusive conduction through the atrioventricular node in atrial fibrillation is presumed to convey lower risk. The shortest-pre-excited-paced-cycle-length with atrial pacing has also served as a marker for risk stratification. OBJECTIVE: To determine accessory pathway characteristic of patients undergoing induction of atrial fibrillation during electrophysiologic study. METHODS: We reviewed 321 pediatric patients that underwent electrophysiologic study between 2010 and 2019. Induction of atrial fibrillation was attempted on patients while on isoproterenol and SPERRI was measured if atrial fibrillation was induced. Shortest-pre-excited-paced-cycle-length (SPPCL) was determined while on isoproterenol. RESULTS: Atrial fibrillation was induced in 233 (73%) patients. Of those, 104 (45%) patients conducted exclusively through the atrioventricular node during atrial fibrillation (Group A). The remaining 129 (55%) patients had some conduction through the accessory pathway (Group B). In Group A, SPPCL was 260 msec with 48 (46%) conducting through the accessory pathway at ≤250 msec. In Group B, SPPCL was 240 msec with 92 patients (71%) conducting at ≤250 msec (p < 0.05). In Group B, SPERRI was 250 msec and had a positive correlation with SPPCL (p < 0.001, R2 = 0.28). Almost half (46%) of those with exclusive conduction through the atrioventricular node in atrial fibrillation had rapid accessory pathway conduction with atrial pacing. CONCLUSION: Conduction in atrial fibrillation during electrophysiologic study on isoproterenol via the atrioventricular node may not exclude high-risk accessory pathways in pediatric patients.

6.
Soc Sci Res ; 110: 102848, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36797005

RESUMEN

Affirmative action has long been a contentious issue in the United States. Using data from a 2021 national YouGov sample of 1125 U.S. adults, we are the first to examine the effect of moral intuitions on people's support for affirmative action in college admissions. We find that those with strong individualizing moral intuitions-a heightened general concern with avoiding harm and mistreatment of people-are more likely to support affirmative action. We find that its effect is mediated in large part by beliefs in the extent of systemic racism, as those with strong individualizing moral intuitions are more likely to also believe that systemic racism is pervasive, and also partly by low levels of racial resentment. Conversely, those with strong binding moral intuitions-a heightened concern with the cohesion of social groups-are less likely to support affirmative action. This effect is also mediated by belief in the extent of systemic racism and racial resentment, as those with strong binding moral intuitions are more likely to believe both that the system is fair and have higher levels of racial resentment. Our study suggests that future work should consider the role of moral intuitions in shaping people's views of contentious social policies.


Asunto(s)
Actitud , Intuición , Adulto , Humanos , Estados Unidos , Principios Morales , Política Pública , Universidades
7.
Soc Sci Res ; 112: 102811, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-37061324

RESUMEN

Patriotism defines one's attachment and identification to a broad political community. We examine how levels of patriotism are shaped by beliefs about the fairness of institutions, termed system justification, and people's moral intuitions. Using data from a 2021 YouGov survey, we find that system justification and "binding" moral intuitions that prioritize the cohesion of social groups both lead to greater patriotism. Notably, we found a moderating effect of moral intuitions on system justification. Strong binding intuitions reduced the effect of system justification, indicative of blind patriotism, where some people are patriotic even if they perceive the system as unfair. Strong "individualizing" intuitions, which prioritize fairness and protection from harm, increased the effect of system justification. This is consistent with the notion of constructive patriotism, where patriotism among people with strong individualizing intuitions is affected by whether they believe the country is living up to its fairness ideals. We extend prior research on patriotism and system justification by showing the vitally important way that moral intuitions moderate the effects of system justification.


Asunto(s)
Intuición , Principios Morales , Humanos , Encuestas y Cuestionarios
8.
Soc Sci Res ; 115: 102927, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37858364

RESUMEN

The influence of judges' personal moral values on their sentencing decisions is of longstanding interest to researchers and the public. Few studies, however, have examined this influence empirically. Using a unique data set that combines a survey of 81 criminal court judges with archival data on their 40,385 criminal sentences over a 2-year period, and drawing on Moral Foundations Theory, we hypothesize that judges with strong care and fairness intuitions will sentence defendants less severely while judges with strong loyalty, authority, and sanctity intuitions will sentence defendants more severely. We further hypothesize that these effects will be heightened when the defendant is from a racial minority group. Results show that sentencing outcomes are largely independent of judges' moral intuitions, except that fairness intuitions tend to increase leniency, especially when the defendant is Black, and sanctity intuitions tend to decrease leniency. Implications for future research on sentencing are discussed.


Asunto(s)
Criminales , Humanos , Pennsylvania , Derecho Penal/métodos , Intuición , Principios Morales
9.
J Oral Maxillofac Surg ; 80(1): 101-112, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34653372

RESUMEN

PURPOSE: Secretory carcinoma (SC) of the salivary gland, formerly known as mammary analogue secretory carcinoma, is an uncommon and fairly newly described low grade malignant neoplasm of the salivary gland. Given the small number of cases reported in the literature to date, treatment guidelines are scarce. This study aimed to describe the clinical characteristics of SC, discuss prior management strategies, and provide recommendations for future treatment. METHODS: We performed a systematic review of all the cases of SC reported in the literature since it was first recognized in 2010. Using Pubmed, Crossref, and Google Scholar, we identified all articles reporting cases of SC. RESULTS: We identified 657 cases of SC in 109 articles. In addition, we provided 2 new cases, for a total of 659 cases in 110 articles. To our knowledge, this is the largest review of cases of SC in the literature to date. We summarized the clinical characteristics of SC, as well as the nodal status, clinical management, recurrence rate, and death rate. CONCLUSIONS: SC occurs on average in middle age (with a large age range), presents most often initially as localized disease without metastasis, and has a low but not insignificant recurrence rate. Deaths have been reported. The generalized recommendations for treatment of SC are in line with those of other low-grade salivary gland malignancies.


Asunto(s)
Neoplasias de la Mama , Carcinoma , Carcinoma Secretor Análogo al Mamario , Neoplasias de las Glándulas Salivales , Femenino , Humanos , Persona de Mediana Edad , Glándulas Salivales
10.
Pediatr Cardiol ; 43(1): 218-224, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34510237

RESUMEN

Sudden cardiac arrest in pediatric patients is a rare occurrence. Supraventricular tachycardia without the presence of ventricular preexcitation in pediatric patients with a structurally normal heart is generally considered benign. Previous literature in adults reported a subset of patients in whom SVT was suspected to be the primary trigger of sudden cardiac arrest. We performed a single-center, retrospective cohort study of pediatric patients without known heart disease, 1-21 years of age, presenting with aborted SCA between 2009 and 2019. We collected diagnostic studies in all patients to identify the etiology of the aborted SCA. Thirty patients met the inclusion criteria. The median age at the time of SCA was 15.2 years. The etiology of SCA was identified in 23 (77%) patients. Of the seven patients with unknown diagnosis after initial diagnostic studies, three patients subsequently developed fast SVT that was presumed to be the etiology of the initial SCA. These three patients had varying diagnoses of atrioventricular nodal reentry tachycardia, ectopic atrial tachycardia, and a concealed accessory pathway with atrioventricular reentrant tachycardia. After ablation or medical treatment of the SVT substrate, no further tachyarrhythmias were observed. Pediatric patients presenting with an aborted SCA of unknown etiology ought to be considered for electrophysiology testing to elicit occult SVT substrates that may lead to a malignant ventricular tachyarrhythmia.


Asunto(s)
Ablación por Catéter , Taquicardia por Reentrada en el Nodo Atrioventricular , Taquicardia Supraventricular , Adulto , Niño , Muerte Súbita Cardíaca/etiología , Electrocardiografía , Humanos , Estudios Retrospectivos , Taquicardia por Reentrada en el Nodo Atrioventricular/diagnóstico , Taquicardia por Reentrada en el Nodo Atrioventricular/cirugía , Taquicardia Supraventricular/diagnóstico , Taquicardia Supraventricular/etiología , Taquicardia Supraventricular/cirugía
11.
Pacing Clin Electrophysiol ; 44(9): 1593-1598, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34287953

RESUMEN

OBJECTIVES: We aimed to measure the frequency and factors associated with anodal stimulation in a pediatric population with epicardial pacing leads. BACKGROUND: In bipolar pacemakers, capture of the myocardium typically occurs at the cathode. However, AS with capture at the anode has been described. This has not been described in epicardial pacemakers. METHODS: Retrospective data were collected from patients ≤ 21 years of age with permanent bipolar epicardial ventricular pacemakers from 1/2017 to 1/2018. AS was defined as a clear change on surface ECG in at least one of the 12 leads assessed by two blinded pediatric electrophysiologists. RESULTS: Twenty-four bipolar leads in 23 patients were included in the study. One patient had both biventricular leads tested. Median age was 7.1 years (IQR 5.0-10.9), weight was 20.9 kg (IQR 16.5-33.5), and 65% were male. Testing was performed at a median of 2.8 years (IQR 1.6-6.1) after implant. Congenital heart disease was present in 57%. Complete heart block was the pacemaker indication in 78%. AS was identified in 16/24 (67%) of leads tested. Identification of AS was associated with presence of congenital heart disease (p = 0.004) and 3DD between electrodes (p = 0.04). CONCLUSIONS: AS is common in pediatric patients and was associated with a history of congenital heart disease and greater estimated 3DD between electrodes. The prevalent nature of AS may allow clinicians to utilize existing pacemakers as multisite pacing systems.


Asunto(s)
Bloqueo Cardíaco/fisiopatología , Bloqueo Cardíaco/terapia , Cardiopatías Congénitas/fisiopatología , Cardiopatías Congénitas/terapia , Ventrículos Cardíacos/fisiopatología , Marcapaso Artificial , Niño , Preescolar , Electrocardiografía , Femenino , Humanos , Masculino , Estudios Retrospectivos
13.
Pediatr Cardiol ; 42(1): 109-115, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32979068

RESUMEN

Definitive treatment of supraventricular tachycardia (SVT) substrate involves catheter ablation. While objective success rates have been well established, long-term subjective patient experiences have not been well described. We quantify a subjective cure rate and characterize long-term patient experience after acutely successful ablation. A cross-sectional survey of pediatric patients with accessory pathways or atrioventricular nodal reentrant tachycardia who underwent acutely successful ablation from 2008 to 2012 was performed. Data were obtained from medical records and patient surveys. Patients with congenital heart disease other than patent ductus arteriosus, patent foramen ovale, or coronary artery abnormalities were excluded. Statistical analyses included Student's t-test and χ2 analysis for continuous and categorical variables, respectively. Surveys were sent to 153 patients of which 147 responded with median follow-up of 7.2 (IQR 6.1-8.5) years. Of the 147 responders, 124 (84%) patients reported cure with a male predominance. Symptoms were present in 130/147 (88%) patients pre-ablation and in 53/147 (36%) post-ablation. Among those with post-ablation symptoms, 50/53 (94%) reported symptomatic improvement. Recurrence occurred in 23/147 (16%) patients and was more prevalent following cryoablation. Ablation of SVT substrate can be curative with excellent long-term results and patient satisfaction. Long-term subjective cure rate is high and there is a substantial decrease in symptoms post-ablation. Many patients continue to have symptoms following ablation; however, the majority of these patients consider themselves cured and symptoms can be attributed to other etiologies. Recurrence is uncommon and occurs more frequently following cryoablation.


Asunto(s)
Ablación por Catéter/métodos , Evaluación del Resultado de la Atención al Paciente , Taquicardia Supraventricular/cirugía , Fascículo Atrioventricular Accesorio/cirugía , Adolescente , Niño , Preescolar , Estudios Transversales , Criocirugía/métodos , Electrocardiografía , Femenino , Estudios de Seguimiento , Humanos , Masculino , Recurrencia , Encuestas y Cuestionarios , Taquicardia por Reentrada en el Nodo Atrioventricular/cirugía , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
14.
Pediatr Transplant ; 24(3): e13689, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-32157785

RESUMEN

BACKGROUND: Relative contraindications to adenosine use have included heart transplant and dipyridamole. We previously demonstrated the safety and efficacy of adenosine-induced atrioventricular (AV) block in healthy young heart transplant recipients while suspending dipyridamole therapy (dual antiplatelet agent). This prospective follow-up study evaluated the safety and efficacy of adenosine use in the same cohort of heart transplant recipients while on dipyridamole. METHODS: Adenosine was incrementally dosed until AV block occurred (maximum 200 mcg/kg up to 12 mg). The primary outcome was clinically significant asystole (≥12 seconds). Secondary outcomes included maximal adenosine dose, AV block duration, dysrhythmias, and clinical symptoms. Outcomes were compared to the parent study. RESULTS: Thirty of 39 eligible patients (5-24 years) were tested. No patient (0%, CI 0%-8%) experienced clinically significant asystole. AV block occurred in 29/30 patients (97%, CI 86%-100%). The median dose causing AV block was 50mcg/kg (vs 100 mcg/kg off dipyridamole; P = .011). Seventeen patients (57%, CI 39%-72%) required less adenosine to achieve AV block on dipyridamole; six (20%) required more. AV block occurred at doses ≥25 mcg/kg in all patients. In pairwise comparison to prior testing off dipyridamole, no significant change occurred in AV block duration, frequency of cardiac ectopy, or incidence of reported symptoms. No atrial fibrillation/flutter occurred. CONCLUSIONS: AV block often occurs at twofold lower adenosine doses in healthy young heart transplant recipients taking oral dipyridamole, compared with previous testing of this cohort off dipyridamole. Results suggest that initial dosing of 25 mcg/kg (maximum 0.8 mg) with stepwise escalation poses low risk of prolonged asystole on dipyridamole.


Asunto(s)
Adenosina/administración & dosificación , Antiarrítmicos/administración & dosificación , Bloqueo Atrioventricular/inducido químicamente , Dipiridamol/administración & dosificación , Trasplante de Corazón , Complicaciones Posoperatorias/tratamiento farmacológico , Taquicardia Supraventricular/tratamiento farmacológico , Adenosina/farmacología , Adenosina/uso terapéutico , Adolescente , Antiarrítmicos/farmacología , Antiarrítmicos/uso terapéutico , Niño , Preescolar , Dipiridamol/farmacología , Dipiridamol/uso terapéutico , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Femenino , Estudios de Seguimiento , Humanos , Masculino , Estudios Prospectivos , Taquicardia Supraventricular/etiología , Adulto Joven
15.
Cardiol Young ; 30(11): 1735-1737, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32741394
16.
Cardiol Young ; 30(7): 907-910, 2020 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-32611457

RESUMEN

Approximately, 1.7 million individuals in the United States have been infected with SARS-CoV-2, the virus responsible for the novel coronavirus disease-2019 (COVID-19). This has disproportionately impacted adults, but many children have been infected and hospitalised as well. To date, there is not much information published addressing the cardiac workup and monitoring of children with COVID-19. Here, we share the approach to the cardiac workup and monitoring utilised at a large congenital heart centre in New York City, the epicentre of the COVID-19 pandemic in the United States.


Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/complicaciones , Cardiopatías/diagnóstico , Cardiopatías/virología , Neumonía Viral/complicaciones , COVID-19 , Niño , Hospitalización , Humanos , Pandemias , SARS-CoV-2
17.
Pediatr Cardiol ; 40(3): 513-517, 2019 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-30377753

RESUMEN

BACKGROUND: The clinical course of children with advanced heart block secondary to Lyme disease has not been well characterized. OBJECTIVE: To review the presentation, management, and time to resolution of heart block due to Lyme disease in previously healthy children. METHODS: An IRB approved single-center retrospective study was conducted of all patients < 21 years old with confirmed Lyme disease and advanced second or third degree heart block between 2007 and 2017. RESULTS: Twelve patients (100% male) with a mean age of 15.9 years (range 13.2-18.1) were identified. Six patients (50%) had mild to moderate atrioventricular valve regurgitation and all had normal biventricular function. Five patients had advanced second degree heart block and 7 had complete heart block with an escape rate of 20-57 bpm. Isoproterenol was used in 4 patients for 3-4 days and one patient required transvenous pacing for 2 days. Patients were treated with 21 days (n = 6, 50%) or 28 days (n = 6, 50%) of antibiotics. Three patients received steroids for 3-4 days. Advanced heart block resolved in all patients within 2-5 days, and all had a normal PR interval within 3 days to 16 months from hospital discharge. CONCLUSION: Symptomatic children who present with new high-grade heart block from an endemic area should be tested for Lyme disease. Antibiotic therapy provides quick and complete resolution of advanced heart block within 5 days, while steroids did not appear to shorten the time course in this case series. Importantly, no patients required a permanent pacemaker.


Asunto(s)
Bloqueo Cardíaco/etiología , Enfermedad de Lyme/complicaciones , Adolescente , Antiarrítmicos/administración & dosificación , Antibacterianos/administración & dosificación , Ecocardiografía/métodos , Electrocardiografía/métodos , Femenino , Bloqueo Cardíaco/terapia , Humanos , Enfermedad de Lyme/tratamiento farmacológico , Masculino , Marcapaso Artificial/estadística & datos numéricos , Estudios Retrospectivos
18.
Circulation ; 135(25): 2485-2493, 2017 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-28450351

RESUMEN

BACKGROUND: Supraventricular tachycardia is common after heart transplantation. Adenosine, the standard therapy for treating supraventricular tachycardia in children and adults without transplantation, is relatively contraindicated after transplantation because of a presumed risk of prolonged atrioventricular block in denervated hearts. This study tested whether adenosine caused prolonged asystole after transplantation and if it was effective in blocking atrioventricular nodal conduction in these patients. METHODS: This was a single-center prospective clinical study including healthy heart transplant recipients 6 months to 25 years of age presenting for routine cardiac catheterization during 2015 to 2016. After catheterization, a transvenous pacing catheter was placed and adenosine was given following a dose-escalation protocol until atrioventricular block was achieved. The incidence of clinically significant asystole (≥12 seconds after adenosine) was quantified. The effects of patient characteristics on adenosine dose required to produce atrioventricular block and duration of effect were also measured. RESULTS: Eighty patients completed adenosine testing. No patient (0%; 95% confidence interval, 0-3) required rescue ventricular pacing. Atrioventricular block was observed in 77 patients (96%; 95% confidence interval, 89-99). The median longest atrioventricular block was 1.9 seconds (interquartile range, 1.4-3.2 seconds), with a mean duration of adenosine effect of 4.3±2.0 seconds. No patient characteristic significantly predicted the adenosine dose to produce atrioventricular block or duration of effect. Results were similar across patient weight categories. CONCLUSIONS: Adenosine induces atrioventricular block in healthy pediatric and young adult heart transplant recipients with minimal risk when low initial doses are used (25 µg/kg; 1.5 mg if ≥60 kg) and therapy is gradually escalated. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT02462941.


Asunto(s)
Adenosina/administración & dosificación , Bloqueo Atrioventricular/fisiopatología , Nodo Atrioventricular/fisiología , Sistema de Conducción Cardíaco/fisiología , Trasplante de Corazón/tendencias , Administración Intravenosa , Adolescente , Antiarrítmicos/administración & dosificación , Bloqueo Atrioventricular/inducido químicamente , Nodo Atrioventricular/efectos de los fármacos , Niño , Preescolar , Relación Dosis-Respuesta a Droga , Femenino , Sistema de Conducción Cardíaco/diagnóstico por imagen , Humanos , Lactante , Masculino , Estudios Prospectivos , Adulto Joven
19.
Pacing Clin Electrophysiol ; 41(4): 368-371, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29327439

RESUMEN

BACKGROUND: Concealed left-sided accessory pathways (CLAP) are a cause of supraventricular tachycardia (SVT) in the young. Most are mapped with right ventricular (RV) apical/outflow pacing. Rarely, alternative means of mapping are required. We review our experience from three pediatric electrophysiology (EP) centers with a rare form of "hidden" CLAP. METHODS: All patients <21 years undergoing EP study from 2008 to 2014 with a "hidden" CLAP (defined as an accessory pathway [AP] for which RV pacing at cycle lengths [CL] stable for mapping did not demonstrate eccentric retrograde conduction) were included. EXCLUSION CRITERIA: preexcitation. Demographic, procedural, and follow-up data were collected. RESULTS: A total of 23 patients met the criteria (median age, 14.3 years [range 7-21], weight, 51 kg [31-99]). 21 (96%) had SVT and one AFIB (4%). APs were adenosine sensitive in 7/20 patients (35%) and VA conduction was decremental in six (26%). CLAP conduction was demonstrable with orthodromic reentrant tachycardia in all patients, with RV extrastimulus testing in seven (30%) and with rapid RV pacing (

Asunto(s)
Fascículo Atrioventricular Accesorio/fisiopatología , Mapeo Epicárdico/métodos , Taquicardia Supraventricular/fisiopatología , Fascículo Atrioventricular Accesorio/cirugía , Adolescente , Estimulación Cardíaca Artificial , Niño , Femenino , Humanos , Masculino , Ablación por Radiofrecuencia , Estudios Retrospectivos , Taquicardia Supraventricular/cirugía , Resultado del Tratamiento , Adulto Joven
20.
Cardiol Young ; 27(4): 804-807, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-27869041

RESUMEN

Risk stratification of patients with Wolff-Parkinson-White syndrome for sudden death is a complex process, particularly in understanding the utility of the repeat exercise stress test. We report a case of an 18-year-old patient who was found to have a high-risk pathway by both invasive and exercise stress testing after an initial exercise stress test showing beat-to-beat loss of pre-excitation.


Asunto(s)
Prueba de Esfuerzo , Taquicardia/diagnóstico , Taquicardia/cirugía , Síndrome de Wolff-Parkinson-White/fisiopatología , Adolescente , Ablación por Catéter , Muerte Súbita Cardíaca/prevención & control , Electrocardiografía Ambulatoria , Humanos , Masculino , Medición de Riesgo , Síndrome de Wolff-Parkinson-White/diagnóstico
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