Risultati per: Report aggiornato sulla qualità dell’aria in Europa (2015)

Circulation, Volume 146, Issue Suppl_1, Page A11660-A11660, November 8, 2022. Introduction:Diagnosing a pulmonary embolism (PE) can be challenging, especially when it presents as another “can’t miss” diagnosis like acute coronary syndrome. Although electrocardiogram (EKG) abnormalities can be seen in many PE presentations, rarely are ST elevations noted. We describe a case report of PE presenting as STEMI.Case presentation:A 71-year-old woman with hypertension, hyperlipidemia, type 2 diabetes mellitus, and morbid obesity presented to the emergency department with chest pain radiating to the jaw along with shortness of breath. On initial presentation her heart rate was 110 bpm, respiratory rate 40, 84% SpO2 on room air, and blood pressure 150/84 mmHg. EKG showed ST elevation in anterior leads V1-V2 and reciprocal changes of ST depression in lateral leads I, aVL, V5-V6. Serial troponins were elevated and she underwent left heart catheterization which showed non-obstructive coronary artery disease and hyperdynamic left ventricular function. Right heart catheterization (RHC) showed an elevated mean pulmonary artery pressure of 49 mmHg, and pulmonary artery pulsatility index was 2.2, suggestive of right ventricular dysfunction which prompted an urgent CT pulmonary angiogram and transthoracic echocardiogram. The CT revealed extensive pulmonary embolism and echocardiogram demonstrated dilated right ventricle with hypokinesis and akinetic right ventricular free wall. A left lower extremity ultrasound revealed deep vein thrombosis.Discussion:This patient depicts an uncommon presentation of acute PE masquerading as acute coronary syndrome. Her case was diagnostically challenging as her EKG findings were not consistent with those typically seen in acute PE. Review of the literature reveals only a handful of case reports of a PE appearing to be a STEMI. Although rare, clinicians should entertain the idea of PE when presented with ST elevation and no culprit lesion and a careful RHC may be useful in establishing diagnosis.

Circulation, Volume 146, Issue Suppl_1, Page A14489-A14489, November 8, 2022. Clinical Case:A 37-year-old transgender (TG) woman off gender-affirming hormonal therapy (GAHT) presented with substernal chest pain radiating to the left arm, worse with exertion and relieved with res. She was hypertensive and tachycardic on admission. Initial bloodwork revealed an elevated troponin I of 0.57 ng/mL, which peaked at 1.48 ng/mL. EKG on admission showed hyperacute T waves in the anterior leads without ST elevation (see Figure 1). She was diagnosed with non-ST elevation myocardial infarction (NSTEMI) and taken for left heart catheterization (LHC).Decision-Making:TTE showed preserved LVEF and basal inferior, basal inferolateral, basal anterolateral and mid-anterolateral hypokinesis. LHC showed proximal-to-mid right coronary artery (RCA) occlusion. After failed aspiration thrombectomy indicating calcified plaque, two overlapping drug-eluting stents (DES) were successfully deployed with restoration of flow. She was discharged home on aspirin, ticagrelor, atorvastatin, and carvedilol.Discussion:Despite a recent push to increase awareness, research and healthcare equality specific to lesbian, gay, bisexual, transgender, and queer (LGBTQ+) patients, a significant gap persists. Specifically, stress, inflammation, dyslipidemia, and thromboembolism predispose this understudied population to increased coronary artery disease (CAD) and myocardial infarction (MI). Accordingly, greater effort needs to be taken to mitigate preventable cardiac morbidity and mortality in this patient population.Conclusion:CAD in LGBTQ+ adults is well studied. However, there are few published studies on CAD specifically among TG men and women. National cross-sectional data highlights this disproportionate risk of CAD and MI among TG men and women relative to their cisgender female and male peers, a healthcare disparity recently emphasized by the AHA. Consequently, care must be taken to eliminate these aforementioned inequalities.

Circulation, Volume 146, Issue Suppl_1, Page A12670-A12670, November 8, 2022. Introduction:Although most pediatric VAD patients survive to transplantation, some die on device therapy. The end-of-life experience of pediatric VAD patients is not well characterized.Hypothesis:Invasive interventions are common in pediatric VAD patients at the end-of-life.Methods:Retrospective review of pediatric VAD patients in the ACTION registry who died on device therapy between 3/2012-9/2021. Demographic and clinical data, including invasive interventions used at the end-of-life and the location of death, were analyzed.Results:107/721 (15%) of patients died on device at a median age of 5 years (IQR:1, 16) at 43 days (IQR: 17, 91) post implant. Goals of VAD therapy were bridge to candidacy for 50 patients (51%), bridge to transplant for 44 (37.6%), destination therapy for 2 (1.7%). The most common cause of death was multi-organ failure (n=35, 30%), followed by infection (n=12, 10.3%). Eighty-five of 92 patients (92.4%) died with a functioning device in place. Most patients were receiving invasive interventions (mechanical ventilation, 75%; vasoactive infusions, 62%) at the end-of-life. (Table 1). Only 10 (9%) patients died at home. Utilizing these data, we identified and estimated the frequency of four common end-of-life trajectories for pediatric VAD patients. (Figure 1).Conclusions:Aggressive interventions are common at the end-of-life of pediatric patients with VADs. Dying at home is uncommon. Identification of common end-of-life patterns will serve as an outcome measure and inform future practices to promote informed patient and provider decision-making to reduce suffering in those who die on device support.

Circulation, Volume 146, Issue Suppl_1, Page A14459-A14459, November 8, 2022. Introduction:Cardiobacterium hominis, part of the oropharyngeal flora, is a gram-negative bacteria reported to cause infection in less than 5% of patients with infective endocarditis (IE). In children, congenital heart disease (CHD) is a predominant risk factor for developing IE. Herein we describe an unusual presentation ofC. hominisbioprosthetic valve endocarditis.Case Presentation:A 23-year-old woman with bicuspid aortic valve and aortic valve stenosis underwent aortic bioprosthetic valve placement in 2017. In March 2022, she presented to an emergency room with left lower abdominal pain. A CT scan demonstrated occlusion of the left iliac artery. Medications at that time included oral contraceptive pills and baby aspirin. No echocardiogram was obtained at that visit. She presented for a routine cardiology follow-up in May 2022 at which time she was asymptomatic. Transthoracic echocardiogram demonstrated moderate to severe aortic insufficiency, though the mechanism could not be delineated. There was concomitant development of mild mitral valve and tricuspid valve insufficiency. She denied dyspnea, chest pain, or fevers. Laboratory investigation showed mild elevation of CRP and a normal ESR. A transesophageal echocardiogram demonstrated that the severe aortic regurgitation was through a paravalvar leak (figure 1). There was no evidence of vegetations. Three separate blood cultures grewC. hominis. The patient was admitted for IV antibiotic therapy prior to bioprosthetic replacement.Conclusions:C. hominisis an infrequent cause of endocarditis and most cases present with fever and elevated ESR. This patient had an unusual presentation with left iliac thrombus, which in retrospect was likely due to embolism of a vegetation. She also developed aortic bioprosthetic paravalvar leak. This case highlights the need for a high degree of suspicion for endocarditis in patients with CHD and bioprosthetic valves.

Circulation, Volume 146, Issue Suppl_1, Page A14762-A14762, November 8, 2022. Introduction: Anti-neoplastic agents that target vascular endothelial growth factor (VEGF) are known to have cardiovascular toxicities, principally hypertension, with a reported incidence of 21-40% in first-time users. Anti-VEGF induced hypertension can be challenging to control, and significant enough to lead to a dose reduction or discontinuation of the VEGF-targeted therapy, preventing patients from completing their cancer therapy.Methods:A single center prospective cohort of patients with cancer starting anti-VEGF therapy was compared to a retrospective control cohort that was 1:1 matched on gender, race, ethnicity, cancer type, and anti-VEGF therapy. For the prospective cohort, antihypertensive medications were started per an anti-VEGF hypertension algorithm. Elevated blood pressure was defined as consecutive blood pressure readings above 140/90 mmHg and control of blood pressure defined as consecutive readings

Circulation, Volume 146, Issue Suppl_1, Page A11377-A11377, November 8, 2022. Introduction:Association of takotsubo syndrome (TTS) with spontaneous coronary artery dissection (SCAD) has been described previously. Characteristics and in-hospital prognosis of SCAD patients with concomitant TTS remain unclear.Methods:Patients with angiography-confirmed SCAD were selected from the iSCAD Registry and underwent core lab adjudication of left ventriculography (LVG) and coronary angiography including assessment of SCAD lesion characteristics, TIMI Flow Grade (TFG), and TIMI Myocardial Perfusion Grade (TMPG). Classic TTS was defined as wall motion abnormality (WMA) presenting as apical ballooning. TTS variants were defined as non-apical WMA discordant to dissected coronary territory with apical sparing. In-hospital event was defined as composite of recurrent myocardial infarction (MI), cerebrovascular accident, heart failure requiring diuretics, or new arrhythmia.Results:On blinded review of LVG from 216 patients, TTS was identified in 38 (17.6%) patients (classic, midventricular, and focal pattern: 86.8%, 2.6%, and 10.5%, respectively). There was no significant difference in age, cardiovascular risk factors, history of anxiety or depression, recreational substance use, emotional or physical stressors, extracoronary vascular abnormalities, peak troponin levels, or TFG of dissected arteries between TTS and non-TTS groups. TTS patients were more likely to present with ST-segment elevation MI (47.4% vs 27.5%; p=0.02), left anterior descending artery (LAD) involvement (89.5% vs 59.0%; p=0.0004), and TMPG < 3 (68.4% vs 48.3%; p=0.02) compared to non-TTS patients. TTS patients had a greater risk of in-hospital events (32.4% vs 15.1%; p=0.01), mainly attributed to new arrhythmia (27.0% vs 6.5%; p=0.0009) and heart failure (11.4% vs 3.0%; p=0.03).Conclusion:Coexistence of TTS and SCAD was associated with ST-elevation MI, LAD involvement, impaired microvascular myocardial perfusion, and adverse in-hospital outcomes.

Circulation, Volume 146, Issue Suppl_1, Page A15281-A15281, November 8, 2022. Introduction:Spontaneous coronary artery dissection (SCAD) is an important cause of acute coronary syndrome especially in young patients. Factors associated with delays in presentation and care delivery are not well understood.Methods:We used data from the iSCAD Registry which is a prospective multicenter US registry of patients with SCAD. Early vs. delayed hospital presentation (< 24 vs. ≥ 24 hours), and early vs. delayed coronary angiography (time from hospital presentation to coronary angiography < 24 vs. ≥ 24 hours) for SCAD patients with AMI were assessed. Patient characteristics, and in-hospital events were compared between the two groups. Factors associated with delayed presentation and angiography were explored using multivariable logistic regression.Results:A total of 346 SCAD (294 white, 52 non-white) patients presented with STEMI (34%) or NSTEMI; 57 had a delayed presentation to the hospital after symptoms onset. No significant factors were identified for delays in seeking care. However, white race was less likely to have delayed invasive coronary angiography (multivariable OR=0.38; 95% CI 0.19 to 0.76; p=0.0059). Patients undergoing delayed angiography were also more likely to be medically managed (91.7% vs. 69.8%, p=0.0008), but less likely to receive dual antiplatelet therapy (57.0% vs. 73.1%, p=0.007). In-hospital outcomes were similar between the two groups.Conclusion:In this study, no patient-related variables were identified that predicted a delay in presentation with AMI secondary to SCAD. On the other hand, non-white race was associated with delays in performing invasive coronary angiography. Further investigation is required to determine the factors contributing to this potential disparity.

Circulation, Volume 146, Issue Suppl_1, Page A13836-A13836, November 8, 2022. Introduction:Spontaneous coronary artery dissection (SCAD) is a cause of acute coronary syndrome in younger patients. Though associated with lower short and long-term mortality, there is still a need to identify the subset of patients who are at a higher risk of adverse events or a more complex hospital course.Methods:Using data from the iSCAD Registry, a multicenter registry of patients with SCAD, univariate and multivariable logistic regression models were created to assess the association between factors related to the index admission and a complicated hospital course. A complicated hospital course was defined as the occurrence of either a recurrent myocardial infarction (MI), cerebrovascular accident (CVA), a new arrhythmia, heart failure requiring diuretics, ≥ 2 angiograms performed, or a hospital admission of more than 5 days. The multivariable logistic regression model was developed using a backward selection approach with exit criteria set at p >0.2. Patients presenting with cardiac arrest were excluded.Results:Of the 414 patients included, 159 patients (38.4%) had a complicated hospital course: 76 patients had a prolonged admission, 27 had a recurrent MI, 1 had a CVA, 39 had an arrhythmia, 13 had heart failure requiring diuretics and 72 had ≥ 2 angiograms in the index admission. The final model showed that patients who had structural complications related to MI, fibromuscular dysplasia (FMD), or a history of cardiomyopathy were more likely to experience a complicated hospital course(Table).Finally, patients on anticoagulation were at a higher risk of having the composite outcome but this may be secondary to the indication for anticoagulation.Conclusions:The presence of structural complications related to MI, a diagnosis of FMD, or a history of cardiomyopathy were associated with an increased risk of a complicated hospital course related to SCAD. Identification of risk factors for a complex inpatient stay may help to tailor the acute care of SCAD patients.

Circulation, Volume 146, Issue Suppl_1, Page A14370-A14370, November 8, 2022. Introduction:Dual antiplatelet therapy (DAPT) is standard for patients (pts.) with acute coronary syndrome due to atherosclerosis. Evidence to support DAPT vs single antiplatelet therapy (SAPT) for spontaneous coronary artery dissection (SCAD) is limited.Hypothesis:Prescription of DAPT vs SAPT varies among specialized centers for SCAD.Methods:Analysis of 505 pts. with complete patient questionnaire, case report form, and angiography review enrolled in the iSCAD Registry from 9 sites with >20 pts. enrolled. Data are presented for 442 pts. with complete medication data who received DAPT or SAPT during index hospitalization (HOSP) and continued at discharge (DC).Results:Patient age 49.6+10.2 years, 83% were female. Presentation of SCAD: NSTEMI (55.9%), STEMI (26.9%), unstable angina (13.8%), cardiac arrest (4.3%), cardiogenic shock (0.2%). Most common SCAD location was the LAD (60.9%); 20.8% had multivessel SCAD. Management was: medical therapy (75.2%), PCI (22.5%), CABG (1.4%), or PCI + CABG (0.92%). During HOSP 70.1% (317/452) were treated with DAPT vs 29.9% SAPT (135/452). At DC, 74.7% were prescribed DAPT (339/442) vs 25.3% SAPT (112/452). In multivariable analyses, only PCI as SCAD treatment was associated with DAPT during HOSP (OR 3.57, 95% CI 1.90-6.70) or DC (OR 4.9, 95% CI 2.28-10.53). There was significant heterogeneity of antiplatelet regimen across sites ranging from 34.0%-87% DAPT during HOSP (p

Circulation, Volume 146, Issue Suppl_1, Page A13763-A13763, November 8, 2022. Introduction:Transcatheter edge-to-edge repair (TEER) of the mitral valve has become an established therapy for patients with severe mitral regurgitation; however, the impact of institutional variations in the number of edge-to-edge TEER for readmission rates with large-scale data is not well investigated.Objectives:Our study aimed to describe the institutional variations of TEER, and also the association between the institutional volume and readmission rates after the procedure across the US institutions.Methods:We conducted a retrospective cohort study of TEER performed in the US between 2019 using the Nationwide Readmission Database. We divided the patients according to the tertiles based on site-specific case of TEER (Q1 [lowest]-Q3 [highest]) and evaluated its association with 30-day readmission rates using Cox proportional hazard model.Results:Overall, 4,922 patients who underwent TEER (mean age 76.8 ± 11.5 years, and 54.5% male) at 250 institutions were included in the analyses. Patients in Q3 (highest tertile) were more likely to be older, and have comorbidities, albeit risk adjusted 30-day readmission rates were similar in each group (Q1: 13.5%; Q2: 13.6%; Q3: 13.7%). Rather than the volume of the procedure, institutional characteristics, such as teaching hospitals located in metropolitan area (hazard ratio [HR 1.92, confidence interval [CI] 1.41-2.61) and institutions with predominantly non-elective (e.g. urgent or emergent) TEER cases (HR 1.75 95% CI 1.39-2.22), or patient characteristics such as chronic heart failure (HR 1.91 95%CI 1.33-2.73), cancer (HR 1.87 95%CI 1.15-3.06), chronic kidney disease (HR 1.45 95% CI 1.20-1.75), chronic pulmonary disease (HR 1.40 95% CI 1.13-1.72), diabetes mellitus (HR 1.39 95% CI 1.12-1.72), and history of percutaneous coronary intervention (HR 1.37 95% CI 1.07-1.76) were associated with a higher incidence of 30-day readmission.Conclusions:Among patients undergoing TEER in a contemporary representative US cohort, procedure volume variation was not associated with the 30-day readmission rate.

Circulation, Volume 146, Issue Suppl_1, Page A13631-A13631, November 8, 2022. Introduction:Suboptimal cardiovascular health (CVH) is associated with adverse pregnancy outcomes and long-term CV risk. Studies examining contemporary trends in CV risk factors (RF) and suboptimal CVH among US women of reproductive age are limited.Methods:We used the 2015 – 2020 Behavioral Risk Factor Surveillance System, a nationally representative survey of US adults, to conduct this serial cross-sectional study. We restricted our sample to nonpregnant reproductive-aged women (18-44 years) without CVD (n=336,102). We calculated the prevalence of each CV RF (current smoking, hypertension, diabetes, hypercholesterolemia, physical inactivity, poor diet, and overweight/obesity) and suboptimal CVH (≥2 RF) for each year and examined trends between 2015 and 2020Results:Between 2015 and 2020, diabetes prevalence remained relatively stable (2.9% to 3.0%; p=0.09) while overweight/obesity prevalence increased (53.1% to 58.4%; p

Circulation, Volume 146, Issue Suppl_1, Page A12256-A12256, November 8, 2022. Rivaroxaban is a direct oral anticoagulant that works by inhibiting factor Xa. Direct anticoagulants have largely replaced direct vitamin K inhibitors (VKAs) due to the increased risk of major hemorrhages and the need for regular monitoring and dose adjustments. However, there have been multiple reports of elevated international normalized ratio (INR) and incidents of bleeding in patients on rivaroxaban, which brings into question the potential need for monitoring. The purpose of this review is to differentiate the patients that may benefit from regular monitoring and to propose future directions for implementation of monitoring. Here we report a case of an INR of 4.8 in a patient who presented with a gastrointestinal bleed and a drop of five gm/dL in hemoglobin four days after starting rivaroxaban following right femoral popliteal bypass graft stenting. The patient had no liver or kidney abnormalities and was not taking any medication or consuming any foods that could introduce any significant drug interaction. Additionally, we conducted a systematic review of similar reports in the literature with the goal of identifying the factors that could influence rivaroxaban’s levels in the blood or its influence on the INR. We reviewed PubMed using keywords including; “rivaroxaban”, “anti-Xa”, “DOAC”, “elevated”, “INR”, “bleeding”, “hemorrhage”, “pharmacology”, and “pharmacokinetics”. The literature revealed reports of INRs up to 5.2. Reviewing the pharmacokinetics of rivaroxaban indicated possibly higher drug levels in Caucasians, patients with a low body mass index (BMI), and patients with polymorphisms in the genes coding for CYP3A4, CYP2J2, or p-glycoprotein, assuming no renal or liver disease and no significant drug-drug or drug-food interactions. INR can be falsely normal if the thromboplastin reagent used to monitor the INR on warfarin is not sensitive to the changes in INR due to rivaroxaban. We suggest finding a thromboplastin reagent that is sensitive to INR changes with rivaroxaban, which could yield clinically relevant INRs on rivaroxaban allowing for accurate monitoring. We then suggest conducting studies to evaluate the cost effectiveness of regular monitoring in at-risk patients.

Circulation, Volume 146, Issue Suppl_1, Page A12536-A12536, November 8, 2022. Introduction:Aortic Dissection (AD) results from a tear between the layers of the aorta. This is often seen among older males or those with heritable connective tissue disorders, and it mostly presents as chest pain. Management involves surgical repair wherein post procedure complications are to be expected. Mediastinitis, or deep sternal wound infection, however, is likewise unusual.Case Presentation:We present a case of a 29-year-old Filipino male presenting with sudden diffuse abdominal pain; he had no comorbidities and had no significant history suggestive of connective tissue disorders. Physical examination was mostly unremarkable. CT Aortogram revealed presence of dissection from the proximal ascending aorta up to the common iliac arteries, with the entry tear measuring 8.5mm at the level of T5, with extension to the proximal branches of the aortic arch, both common carotid arteries, right renal, right internal and external iliac arteries. Echocardiogram also showed a normal aortic valve but with dilated sinus of Valsalva(4.5cm, z-score 5.13). The patient underwent a Modified Bentall Procedure with Cabrol Shunt, with delayed closure of operative site due to extensive bleeding. Cystic medial necrosis was not seen on biopsy. After developing persistent post-operative fever, repeat chest CT showed a fluid collection in the mediastinum encasing the ascending aorta and main pulmonary trunk; culture of abscess fluid was positive forCandida tropicalis. He was then given prolonged parenteral followed by oral antifungal therapy and subsequently discharged improved.Discussion:Vascular causes of abdominal pain should be considered in patients with scant history and physical findings. Major vascular surgery has expected complications such as bleeding and infection; the management of such complications should incorporate a multidisciplinary approach as in such cases, a trial of medical management may be safer than repeat surgery.

Circulation, Volume 146, Issue Suppl_1, Page A13860-A13860, November 8, 2022. Introduction:Cardiac amyloidosis is a clinical disorder defined as an extracellular deposition of protein in the heart. Typically, signs and symptoms of heart failure develop in the advanced disease. High index of suspicion is required for the diagnosis of this disorder.Results:A 62 years old male came to the cardiology clinic due to lower extremity edema, fatigue, dyspnea on exertion. He had a 3 month history of progressive lower leg edema. On physical examination he had a positive S4; lung sounds were diminished and there was dullness to percussion over the lower two thirds; and bilateral lower extremity edema. Hospital admission was decided for management of decompensated heart failure. On admission, the surface ECG showed normal sinus rhythm with low QRS voltage in the limb leads, a RBBB and LPFB. Initial laboratory reported elevated NT-proBNP: 13,816 pg/mL. Chest x-ray demonstrated right interstitial infiltration and bilateral pleural effusion. The echocardiogram revealed severe concentric hypertrophy of the left ventricle, an apical sparing left ventricle longitudinal strain, and an ejection fraction of 68%. A cardiac MRI showed concentric biventricular hypertrophy associated with extensive diffuse late gadolinium enhancement, suggestive of cardiac amyloidosis. Screening resulted in a Perugini score of 1 on Tc-PYP scintigraphy, elevated Kappa and Lambda light chains on serum, and kidney biopsy positive for amyloidosis. Hematology-oncology consultation was done and a daratumumab-CyBorD protocol was started.Conclusions:This case elucidated a stepwise diagnostic approach of cardiac amyloidosis in a patient presenting with signs and symptoms of heart failure. Amyloid AL cardiac amyloidosis and its repercussions are severe because it not only compromises by being infiltrative but also by its toxic capacity. A high index of suspicion and a multidisciplinary approach is needed in order to improve quality of life and prolong survival.

Circulation, Volume 146, Issue Suppl_1, Page A325-A325, November 8, 2022. Background:In nonshockable cardiac arrest (CA) patients, the 2020 cardiopulmonary resuscitation (CPR) guidelines have stressed that high-quality CPR improves survival from CA, as with the 2015 CPR guidelines. However, it is unknown whether the 2015 guidelines contributed to the favorable neurological outcomes in adult CA patients. The present study aimed to clarify the effects of the 2015 guidelines on adult CA patients using the data of the All-Japan Utstein Registry, a prospective, nationwide, population-based registry of out-of-hospital CA (OHCA).Methods:From the data of this registry, between 2011 and 2020, we included adult witnessed OHCA patients due to cardiac etiology who had non-shockable rhythm as an initial rhythm. We excluded patients who received prehospital care in 2011, 2015, 2016, and 2020 because it was difficult to distinguish prehospital care based on either 2010 CPR guidelines, 2015, or 2020. We also excluded patients who received bystander CPR by citizens because we cannot assess the quality of bystander CPR. Study patients were divided into two groups based on the different CPR guidelines; the era of the 2010 guidelines (2010G) and the era of the 2015 guidelines (2015G). The endpoint was the favorable neurological outcome at 30 days after OHCA. Potential confounding factors based on biological plausibility and previous studies were included in the multivariable logistic regression analysis. These variables included the age, sex (male, female), advanced airway or not, the administration of adrenaline or not, the administration of saline or not, and time interval from call EMS to the scene.Results:Of the 1,259,960 patients registered in the All-Japan Utstein Registry, the data of 54,219 patients were included in this analysis. The 2015G was significantly higher in the 30-day favorable neurological outcome than the 2010G (2010G vs. 2015G = 1.5% vs. 1.8%: p=0.008). In the multivariate analysis, the adjusted odds ratio for 30-day favorable neurological outcome in OHCA patients in the 2015G compared to in the 2010G was 1.37 (95%CI 1.19-1.58, p

Circulation, Volume 146, Issue Suppl_1, Page A246-A246, November 8, 2022. Introduction:Approximately 15,200 children suffer an in-hospital cardiac arrest (IHCA) annually, and 10-20% will have ventricular fibrillation or pulseless ventricular tachycardia (VF/pVT). Timely defibrillation is critical for shockable rhythms, however current data are lacking on outcomes when > 1 shock is required for termination of VF/pVT.Methods:From the AHA Get With The Guidelines®-Resuscitation registry, we identified children < 18 years of age who had IHCA from initial VF/pVT and received > 1 shock from 2000-2020. Patients were analyzed according to total number of shocks received: 2 shocks, 3 shocks, or >4 shocks. Multivariable logistic regression models were used to test the association between number of shocks and return of spontaneous circulation (ROSC), survival to hospital discharge, and survival to hospital discharge with favorable neurologic outcome.Results:436 patients met inclusion criteria and received > 1 shock for VF/pVT. Median age was 8 years [IQR, 0.9,15.0]. Patients that required >4 shocks were older patients (11 years [1.0-15.0; p=0.013]). A higher percentage of patients receiving >4 shocks had renal insufficiency (14% vs. 7% for 2 shocks vs. 6% for 3 shocks, p = 0.041). Patients receiving >4 shocks vs. 2 shocks were less likely to achieve ROSC (OR 0.40 [0.23,0.68]; p=0.0009). There was no statistically significant difference in survival to hospital discharge for patients receiving 2 shocks (42%), 3 shocks (39%), or >4 shocks (32%) or survival to hospital discharge with favorable neurologic outcome.Conclusion:There was no significant association between the number of shocks and survival to hospital discharge or survival to hospital discharge with favorable neurologic outcome. ROSC was significantly less in patients with >4 shocks for VF/pVT compared to 2 shocks. Further research is needed to characterize energy dosing when > 1 shock is needed for VF/pVT.