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BACKGROUND: Pulmonary embolism (PE) is the third-leading cause of cardiovascular mortality, accounting for 100,000 deaths per year in the United States. Although sex-based disparities have previously been described in this population, it is unclear if these differences have persisted with the expansion of PE evaluation and treatment approaches. The purpose of this study is to investigate sex-based differences in the evaluation, management, and outcomes of patients with acute PE. METHODS: We performed a retrospective analysis of patients enrolled in the national Pulmonary Embolism Response Team (PERT) Consortium database between October 2015 and October 2022. We evaluated patient demographics, clinical characteristics, diagnostic imaging performed, treatment at several phases of care (pre-PERT, PERT recommendations, and post-PERT), and clinical outcomes. RESULTS: A total of 5722 patients with acute PE (2838 [49.6%] women) from 35 centers were included. There were no differences in PE risk category between male and female patients. Women were less likely to undergo echocardiography (76.9% vs 73.8%) and more likely to receive no anticoagulation prior to PERT evaluation (35.5% vs 32.9%). PERT teams were more likely to recommend catheter-based interventions for men (26.6% vs 23.1%), and men were more likely to undergo these procedures (21.9% vs 19.3%). In a multivariable analysis, female sex was a predictor of in-hospital mortality (OR 1.53, 95% CI 1.06 to 2.21). CONCLUSIONS: In this analysis, we identified sex-based differences in the evaluation and management of patients presenting with acute PE. Subsequently, women presenting with acute PE were at higher risk of in-hospital mortality.

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Peripheral arterial disease (PAD) represents one of the most prevalent cardiovascular disease processes and carries a high burden of morbidity and mortality. Patients with chronic limb-threatening ischemia (CLTI), the most severe manifestation of PAD, have the highest rates of cardiovascular morbidity and mortality of the overall PAD population. Patients with below-the-knee (BTK) PAD have an increased propensity toward CLTI due to small-vessel caliber and the frequently comorbid conditions of end-stage renal disease and diabetes mellitus, which tend to affect small artery beds preferentially. For those with BTK PAD with CLTI, the standard of care is revascularization. Early revascularization was performed using surgical bypass. However, endovascular techniques, starting with percutaneous transluminal angioplasty and expanding to the modern armamentarium of adjunctive devices and therapies, have become standard of care for most patients with CLTI due to BTK PAD. In this review, we will discuss the modern surgical and endovascular approaches to revascularization, as well as devices that are currently in development or preapproval study for the treatment of BTK PAD.

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BACKGROUND: Venous thromboembolism (VTE) affects >1.2 million Americans annually. Although the clinical outcomes and economic burdens of VTE have been well described, the impact of VTE on patients' health status has yet to be summarized. This systematic review summarizes how patient-reported outcome measures (PROMs) have been used in VTE to date. METHODS AND RESULTS: PubMed/MEDLINE was queried for literature published through March 2023 using PROMs in a population of patients with VTE. Studies were excluded if the reference was an editorial, review, or case report, or if the study included patients with conditions other than VTE. Qualitative analyses were performed. After screening and exclusion, 136 references were identified; 5 described PROM development, 20 focused on PROM validation, and 111 used PROMs in outcomes research. The most used generic PROMs were the 36-item Short-Form Health Survey and EuroQol 5-dimensional questionnaire, and the most common disease-specific PROMs were the Venous Insufficiency Epidemiological and Economic Study-Quality of Life/Symptoms and the Pulmonary Embolism Quality of Life Questionnaire. PROMs were used to quantify the changes in health status after diagnosis, characterize the trajectory of subsequent improvement, and identify drivers of continued impairments in health status like postthrombotic syndrome and postpulmonary embolism syndrome. PROMs were also used to investigate the impact of novel treatment modalities on quality of life. CONCLUSIONS: This review demonstrates the many benefits of PROM use, including quantifying changes in health status with treatment, capturing patients' experiences with the treatment itself, and identifying complications of VTE. Incorporating PROMs into VTE care will be an essential component of evaluating the effectiveness of novel therapies and should lead to improved shared decision-making for patients with VTE.

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PURPOSE: Percutaneous transluminal angioplasty (PTA) remains the mainstay of endovascular therapy for infrapopliteal chronic limb-threatening ischemia (CLTI), but outcomes have not been well characterized using high-quality data. The aim of this meta-analysis was to provide an updated benchmark for rates of primary patency and binary restenosis after PTA using prospectively collected, predominantly core-lab adjudicated randomized controlled trial (RCT) data. MATERIALS AND METHODS: MEDLINE, EMBASE, Cochrane Central, and ClinicalTrials.gov were queried for RCTs published through November 2022 using PTA as a control arm and including patients with infrapopliteal CLTI. Studies were excluded if >25% of patients had intermittent claudication, other vessels were included, or primary patency or binary restenosis were not outcomes. Outcomes were analyzed using random effects models. This analysis was publicly registered (PROSPERO ID#394543). No funding was utilized. RESULTS: Seventeen RCTs were included (1048 patients, 1279 lesions). Pooled primary patency rates using data from 6 RCTs were 68% at 6 months (95% confidence interval [CI]=45%-84%) and 66% at 12 months (95% CI=51%-79%). Pooled binary restenosis rates using data from 11 RCTs were 54% at 6 months (95% CI=33%-73%) and 60% at 9 to 12 months (95% CI=39%-78%). Significant heterogeneity was present in all outcomes (I2>50%, p<0.0001). Publication bias was not observed (Egger's p>0.1). CONCLUSIONS: This meta-analysis provides estimates for binary restenosis and primary patency following PTA utilizing prospectively collected, predominantly core-lab adjudicated data. Results demonstrate 1-year primary patency rates that are 10% to 20% higher than what has been historically used in power calculations. These new estimates will help facilitate more accurate power analysis for future RCTs. CLINICAL IMPACT: Rates of primary patency and binary restenosis after percutaneous transluminal angioplasty (PTA) have not been well-described using high-quality data, and investigators have been utilizing estimates of 40% to 50% and 45% to 65%, respectively, when performing power calculations for trials. This meta-analysis demonstrates using high-quality, prospectively collected, and predominantly core-lab adjudicated randomized controlled trial data that actual rates of primary patency are closer to 60% up to 1 year following PTA and provides the first meta-analysis estimate of binary restenosis rates up to 1 year after PTA. These estimates will help facilitate more accurate power calculations for future RCTs in this space.

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Clinical pathways are useful tools for conveying and reinforcing best practices to standardize care and optimize patient outcomes across myriad conditions. The NewYork-Presbyterian Healthcare System has utilized a clinical chest pain pathway for more than 20 years to facilitate the timely recognition and management of patients presenting with chest pain syndromes and acute coronary syndromes. This chest pain pathway is regularly updated by an expanding group of key stakeholders, which has extended from the Columbia University Irving Medical Center to encompass the entire regional healthcare system, which includes 8 hospitals. In this 2023 update of the NewYork-Presbyterian clinical chest pain pathway, we present the key changes to the healthcare system-wide clinical chest pain pathway.

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Pulmonary embolism (PE) is the third most common cause of cardiovascular death; however, gender disparities in PE remain understudied. All PE cases at a single institution between January 2013 and June 2019 were retrospectively reviewed. The clinical presentation, treatment modalities, and outcomes were compared between men and women using univariate and multivariate analyses adjusting for differences in baseline characteristics. A total of 1,345 patients were diagnosed with acute PE, of whom 56.3% were women (n = 757). Women had a significantly higher mean body mass index (29.4 vs 28.4) and a higher frequency of hypertension (53% vs 46%) and hormone use (6.6% vs 0%; all p <0.02). Men had a higher frequency of smoking (45% vs 33%, p <0.0001). Women had significantly lower PE severity index classifications (p = 0.0009). The rates of intensive care unit admission, vasopressor requirements, extracorporeal membrane oxygenation cannulation, and mechanical ventilation were similar between the genders. There was no significant difference in the treatment modality used between the genders. Although the risk factors and PE severity index class differed between the genders, there was no significant difference in resource utilization or treatment modality. Gender was also not a significant predictor of in-hospital mortality, moderate or severe bleeding, increased length of stay, or readmission in the study population.

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Acute coronary syndromes (ACS) remain one of the leading causes of cardiovascular morbidity and mortality in the United States and around the world. Because of the acute nature of ACS presentations, timely identification, risk stratification, and intervention are of the utmost importance. Twenty years ago, we published the first iteration of our institutional chest pain clinical pathway in this journal, which separated patients presenting with chest pain into one of the 4 levels of decreasing acuity, with associated actions and interventions for providers based on the level. This chest pain clinical pathway has undergone regular review and updates under a collaborative team of cardiologists, emergency department physicians, cardiac nurse practitioners, and other associated stakeholders in the treatment of patients presenting with chest pain. This review will discuss the key changes that our institutional chest pain algorithm has undergone over the last 2 decades and what the future holds for chest pain algorithms.

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BACKGROUND: Hispanic and Latino patients are under-represented in existing healthcare disparities research in pulmonary embolism (PE). The goal of this study was to determine if differences in PE severity, treatment modality, or in-hospital outcomes exist for Hispanic or Latino patients with PE. METHODS: All PE cases from 2013 to 2019 at a single institution were reviewed. Clinical characteristics, imaging findings, intervention types, and in-hospital and 30-day outcomes were collected. Two cohorts were created based on patients' self-reported ethnicity. Outcomes were compared using univariate and multivariate analysis. RESULTS: A total of 1265 patients were identified with confirmed PE; 474 (37%) identified as Hispanic or Latino. Hispanic or Latino patients presented with high-risk PE significantly less often (19% vs 25%, p = 0.03). On univariate analysis, Hispanic or Latino patients had lower rates of PE-specific intervention (15% vs 19%, p = 0.03) and similar rates of inpatient mortality (6.8% vs 7.5%, p = 0.64). On ordinal regression analysis, Hispanic or Latino ethnicity was associated with lower PE severity (OR 0.69, 95% CI 0.54-0.89, p = 0.003). In subgroup analyses of intermediate and high-risk PEs, ethnicity was not a significant predictor of receipt of PE-specific intervention or in-hospital mortality. CONCLUSIONS: At this institution, Hispanic or Latino patients were less likely to present with high-risk PE but had similar rates of inpatient mortality. Future research is needed to identify if disparities in in-hospital care are driving perceived differences in PE severity and what addressable systematic factors are driving higher-than-expected in-hospital mortality for Hispanic or Latino patients.

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Background: Pulmonary embolism (PE) outcomes are determined by presentation severity and host-related factors. Limited data exist regarding the association of modified body mass index (mBMI), used as a frailty surrogate, with clinical outcomes after treatment for PE. Therefore, we sought to determine the association of mBMI with mortality and bleeding after treatment for intermediate or high-risk PE. Methods: Patients treated for intermediate-risk or high-risk PE at a large academic center between 2013 and 2019 were studied. PE was characterized as intermediate risk (right ventricular compromise) or high risk (hemodynamic compromise) per European Society of Cardiology guidelines. mBMI was defined as the product of serum albumin concentration and body mass index. Patients were stratified according to mBMI quartiles, with low mBMI defined as ≤79, and evaluated for primary end points of in-hospital mortality and bleeding after treatment. A multivariable logistic regression analysis was performed for primary end points. Results: A total of 843 patients were treated for PE. Low mBMI was associated with increased burden of comorbidities and lower rates of interventional or surgical treatment. mBMI was independently associated with mortality (Q1, 22.8%; Q2, 12.4%; Q3, 10.9%; Q4, 6.6%; P = .005) and bleeding (Q1, 20.1%; Q2, 10.1%; Q3, 13.3%; Q4, 11.0%; P = .006). Compared with the lowest mBMI quartile, the highest mBMI quartile was independently associated with lower rates of mortality (OR, 0.28; 95% CI, 0.13-0.58; P < .001) and bleeding (OR, 0.42; 95% CI, 0.23-0.76; P = .004). Conclusions: Low mBMI is prevalent in patients with intermediate-risk and high-risk PE and is independently associated with in-hospital mortality and bleeding after treatment.

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Commotio cordis is a rare cause of sudden cardiac arrest from blunt chest trauma; however, it is a diagnosis of exclusion. We present a case of sudden cardiac arrest in a collegiate athlete initially attributed to commotio cordis but in whom further history and workup revealed another rare condition. (Level of Difficulty: Advanced.).

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We present the case of a woman with upper gastrointestinal bleeding secondary to gastric varices requiring endoscopic cyanoacrylate glue and coil embolization. The procedure was complicated by regular, wide-complex tachycardia, with further investigation revealing cardiopulmonary migration of the glue and coil. (Level of Difficulty: Advanced.).

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PURPOSE OF REVIEW: Temporary mechanical circulatory support (tMCS) has become central in the treatment of refractory cardiogenic shock and can be used to bridge patients to durable MCS, heart transplant or recovery. This review will discuss contemporary data regarding bridging strategies utilizing tMCS. RECENT FINDINGS: There has been significant growth in tMCS use recently, driven by increased familiarity with tMCS devices, and increased experience with both implantation and management. Identifying goals of therapy at the time of therapy initiation can facilitate better outcomes. The three primary goals are bridge to recovery, bridge to heart transplantation or bridge to durable left ventricular assist device. Bridging to recovery requires adequate treatment of underlying conditions and optimization of haemodynamics. Bridging to heart transplantation has become more frequent following changes to the heart allocation policy. Despite early concerns, patients bridge with tMCS, including ventricular-arterial extracorporeal membrane oxygenation, do not appear to have worse posttransplant outcomes. When bridging to durable mechanical circulatory support, tMCS can be used to enhance end-organ dysfunction and improve perioperative outcomes. In situations in which none of these goals are attainable, palliative care plays a critical role to identify patient wishes and assist with withdrawal of care when necessary. SUMMARY: The use of tMCS, as a bridge to recovery or heart replacement therapy in patients with refractory cardiogenic shock has grown significantly over the past decade. Multiple device choices are available and must be chosen appropriately to address the specific situation and the goals of therapy.

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Acute cardiac injury is prevalent in critical COVID-19 and associated with increased mortality. Its etiology remains debated, as initially presumed causes - myocarditis and cardiac necrosis - have proved uncommon. To elucidate the pathophysiology of COVID-19-associated cardiac injury, we conducted a prospective study of the first 69 consecutive COVID-19 decedents at CUIMC in New York City. Of 6 acute cardiac histopathologic features, presence of microthrombi was the most commonly detected among our cohort. We tested associations of cardiac microthrombi with biomarkers of inflammation, cardiac injury, and fibrinolysis and with in-hospital antiplatelet therapy, therapeutic anticoagulation, and corticosteroid treatment, while adjusting for multiple clinical factors, including COVID-19 therapies. Higher peak erythrocyte sedimentation rate and C-reactive protein were independently associated with increased odds of microthrombi, supporting an immunothrombotic etiology. Using single-nuclei RNA-sequencing analysis on 3 patients with and 4 patients without cardiac microthrombi, we discovered an enrichment of prothrombotic/antifibrinolytic, extracellular matrix remodeling, and immune-potentiating signaling among cardiac fibroblasts in microthrombi-positive, relative to microthrombi-negative, COVID-19 hearts. Non-COVID-19, nonfailing hearts were used as reference controls. Our study identifies a specific transcriptomic signature in cardiac fibroblasts as a salient feature of microthrombi-positive COVID-19 hearts. Our findings warrant further mechanistic study as cardiac fibroblasts may represent a potential therapeutic target for COVID-19-associated cardiac microthrombi.

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Background: During the height of the coronavirus disease 2019 (COVID-19) pandemic in New York City, COVID-19 hospitalization was associated with high mortality. It is unknown how palliative care was utilized in this context. Objectives: To describe the frequency of palliative care consultation and its association with end-of-life care for deceased patients with COVID-19. Methods: Adults who were admitted to our institution between February 23, 2020, and April 21, 2020, and died from COVID-19 were included. The primary outcome was the frequency of palliative care consultation. Secondary analyses included the association of palliative care consultation with code status at the time of death, life-sustaining treatments, mechanical ventilation, invasive procedures, intensive care unit (ICU) admissions, and length of hospital stay. Results: The 203 patients were 61% male with median age 76 (interquartile range [IQR] 67-84) years. Palliative care was consulted for 113 patients (56%). At baseline, they were less independent in instrumental activities of daily living (28 patients, 26.1%, vs. 47 patients, 49.0%, p < 0.01) and had more do-not-resuscitate orders (35 patients, 32.7%, vs. 11 patients, 11.5%, p < 0.01). Palliative care consultation was associated with fewer invasive procedures (0, IQR 0-2, vs. 2, IQR 0-3, p < 0.01), less mechanical ventilation (32 patients, 29.9% vs. 65 patients, 67.7%, p < 0.01), and fewer ICU admissions (33 patients, 30.8% vs. 69 patients, 71.9%, p < 0.01). Palliative care was associated with shorter ICU stays (0 days, IQR 0-4, vs. 4 days, IQR 0-12, p < 0.01), whereas hospital stays did not differ significantly (8 days, IQR 5-12.5, vs. 10 days, IQR 5-16.3, p = 0.15). Conclusion: Palliative care was consulted for roughly half of deceased patients with COVID-19 and those patients were less likely to undergo invasive procedures or life-sustaining treatments and spent less time in the ICU at the end of life.

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A retained intracardiac catheter fragment left in situ for 2 years was incidentally found in a patient presenting with worsening heart failure and atrial fibrillation. This case describes the diagnostic evaluation of this rare event, with successful endovascular retrieval and resolution of his symptoms. (Level of Difficulty: Advanced.).

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Cardiac injury is associated with critical COVID-19, yet its etiology remains debated. To elucidate the pathogenic mechanisms of COVID-19-associated cardiac injury, we conducted a single-center prospective cohort study of 69 COVID-19 decedents. Of six cardiac histopathologic features, microthrombi was the most commonly detected (n=48, 70%). We tested associations of cardiac microthrombi with biomarkers of inflammation, cardiac injury, and fibrinolysis and with in-hospital antiplatelet therapy, therapeutic anticoagulation, and corticosteroid treatment, while adjusting for multiple clinical factors, including COVID-19 therapies. Higher peak ESR and CRP during hospitalization were independently associated with higher odds of microthrombi. Using single nuclei RNA-sequence analysis, we discovered an enrichment of pro-thrombotic/anti-fibrinolytic, extracellular matrix remodeling, and immune-potentiating signaling amongst cardiac fibroblasts in microthrombi-positive COVID-19 hearts relative to microthrombi-negative COVID-19. Non-COVID-19 non-failing hearts were used as reference controls. Our cumulative findings identify the specific transcriptomic changes in cardiac fibroblasts as salient features of COVID-19-associated cardiac microthrombi.

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Iatrogenic complications may manifest in a variety of ways. We present the case of an 86-year-old woman who underwent a percutaneous coronary intervention with a drug-eluting stent for non-ST-segment elevation myocardial infarction followed by leadless pacemaker placement through a femoral approach. Her post-procedure course was complicated by new onset high-output heart failure secondary to iatrogenic arteriovenous fistula formation, requiring covered stent placement. (Level of Difficulty: Advanced.).

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