Educational Experience of Interventional Cardiology Fellows in the United States and Canada.

BACKGROUND: The COVID-19 pandemic and iodinated contrast shortage may have affected interventional cardiology (IC) fellowship training. OBJECTIVES: The aim of this study was to investigate the educational experience of first-year IC fellows in the United States and Canada. METHODS: A 59-question online survey was conducted among 2021-2022 first-year IC fellows in the United States and Canada. RESULTS: Of the 360 IC fellows invited to participate, 111 (31%) responded; 95% were from the United States, and 79% were men. Participants were mostly from university programs (70%), spent 61 to 70 hours/week in the hospital, and had an annual percutaneous coronary intervention case number of <200 (5%), 200 to 249 (8%), 250 to 349 (33%), 350 to 499 (39%), 500 to 699 (12%), or ≥700 (3%). For femoral access, a micropuncture needle was used regularly by 89% and ultrasound-guided puncture by 81%, and 43% used vascular closure devices in most cases (>80%). Intravascular ultrasound was performed and interpreted very comfortably by 62% and optical coherence tomography (OCT) by 32%, and 20% did not have access to OCT. Approximately one-third felt very comfortable performing various atherectomy techniques. Covered stents, fat embolization, and coil embolization were used very comfortably by 14%, 4%, and 3%, respectively. Embolic protection devices were used very comfortably by 11% to 24% of IC fellows. Almost one-quarter of fellows (24%) were warned about their high radiation exposure. Eighty-four percent considered IC fellowship somewhat or very stressful, and 16% reported inadequate psychological support. CONCLUSIONS: This survey highlights opportunities for improvement with regard to the use of intravascular imaging, atherectomy techniques, complication prevention and management strategies, radiation awareness and mitigation, and psychological support.

The Supportive Guidewire Paradox: How Extra Support Guidewires May Hinder Equipment Delivery Through Tortuous and Calcified Coronary Lesions.

Percutaneous coronary intervention of heavily calcified coronary vessels can be challenging due to difficult equipment delivery and suboptimal stent expansion, leading to worse clinical outcomes. Supportive guidewires are designed to facilitate equipment delivery. We present two cases of heavily calcified and tortuous coronary lesions in which use of support guidewires hindered balloon and stent delivery, possibly by increasing friction between equipment and the wall of the coronary vessel. Equipment delivery was achieved using less supportive workhorse guidewires.

An Interventional Odyssey: The Importance of Planning and Prompt Recognition and Treatment of Complications During a Complex Chronic Total Occlusion Intervention.

Despite significant progress, chronic total occlusion (CTO) percutaneous coronary interventions (PCI) are often challenging and carry increased risk of complications. We present a highly complex CTO PCI case that was successfully completed despite numerous complications (perforation, donor vessel closure, stent loss, guide extension tip fracture, access site bleeding and cardiac arrest) to highlight the importance of appropriate patient selection, pre-procedural planning, comprehensive patient-centered risk/benefit discussion, and prompt recognition and treatment of intra-procedural complications.

Retrograde approach for rewiring a jailed side branch during double kissing crush stenting.

Double kissing crush (DK crush) is one of the preferred strategies for bifurcation stenting due to the lower risk of target vessel failure but can be difficult to perform. Difficulty in wiring the jailed side branch after stenting the main vessel is not uncommon. The retrograde crossing can provide a solution in selected cases when antegrade rewiring of a jailed side branch fails during DK crush (or other bifurcation stenting techniques).

Reported Pericardial Toxicities Associated with Acute Myelogenous Leukemia Treatments: A Pharmacovigilance Analysis of the FDA Adverse Reporting Database.

Acute myelogenous leukemia (AML) is one of the most common leukemias experienced in adults and conveys significant morbidity and mortality. While the traditional anthracycline based treatments of AML involves cytarabine, developments in alternatives (liposomal cytarabine, fludarabine, cladribine, azacitidine, decitabine), and targeted agents (midostaurin, gilteritinib, enasidenib, ivosidenib, gemtuzumab ozogamicin, and venetoclax) exist. Multiple cardiovascular adverse events, notably pericardial toxicity, have been observed in small studies; however, to date little is known about the comparative pericardial toxicity among these newer regimens. Due to the paucity of data, we sought to investigate the reported pericardial events and mortality associated with treatments for AML. Utilizing the Food and Drug Administration (FDA) Adverse Events Reporting System (FAERS), we identified all adverse events associated with FDA approved treatments for AML (2002-2022). Pericardial events were defined as pericarditis, pericardial effusion and tamponade. We excluded any individuals with age <18 years old. Logistic regression was utilized to identify factors associated with pericardial events. Out of 94,262 reported adverse events, 675 pericardial toxicities were included (243 pericarditis, 479 tamponade). Pericardial events occurred less often in Cladribine (0.3%, P < 0.001), fludarabine (0.4%, P < 0.001), Venetoclax (0.3%, P < 0.001), enasidenib (0.3%, P value < 0.001), and ivosidenib (0.3%, P < 0.001) compared to Cytarabine (0.9%). Tamponade events occurred significantly less often in cladribine (0.1%, P < 0.001), fludarabine (0.4%, P = 0.001), enasidenib (0.1%, P = 0.006), ivosidenib (0.1%, P = 0.01), and venetoclax (0.1%, P < 0.001) compared to cytarabine 0.7%. After adjusting for age and sex, Cladribine (reporting odds ratio [ROR] 0.35 [95% CI 0.18-0.68], P = 0.008) and Fludarabine (ROR 0.65 [0.45-0.92], P = 0.03), venetoclax (ROR 0.57 [0.41-0.79], P < 0.001) remained significantly associated with lower incidence of reported pericardial events. While cytarabine has been the routinely used and/or drug of choice for induction chemotherapy for AML, alternatives like cladribine may have a greater safety profile regarding pericardial toxicities. Future studies should be directed at further investigating cardiovascular safety profiles of AML induction therapy.

Proportionate and Absolute Vascular Disease Mortality by Race and Sex in the United States From 1999 to 2019.

Background Despite the known significant morbidity and mortality associated with cardiovascular disease and peripheral vascular disease (PVD), contemporary data describing racial demographics in PVD mortality are scarce. Methods and Results Using the multiple causes of death file from the Centers for Disease Control and Prevention's Wide-Ranging Online Data for Epidemiologic Research, we analyzed the trends of age-adjusted mortality (AAMR) for PVD and its subtypes (aortic aneurysm/dissection, arterial thrombosis, venous thrombosis/disease, pulmonary embolism), by race and sex between 1999 and 2019. Of the 17 826 871 deaths attributed to cardiovascular disease, a total of 888 187 (5.0%) PVD deaths were analyzed during the study period (12.4% Black, 85.6% White). Between 1999 and 2019, AAMR for PVD decreased by 52% (24.8-11.8 per 100 000 people) in the overall population. Despite a decrease in the overall mortality across all race and sex groups, Black men and Black women continued to have higher mortality for PVD (1.5×), aortic dissection (1.8×), arterial thrombosis (1.3×), and venous thrombosis/disease (2.0×) mortality compared with White men and White women in 2019. While there was a 53% decrease in PVD among White individuals (AAMR 24.5-11.5 per 100 000), there was only a 43% decrease (30.0-17.1) in PVD AAMR in Black individuals between 1999 and 2019. The ratio of PVD AAMR increased from 1.2 (1999) to 1.5 (2019) in Black men/White men and from to 1.3 (1999) to 1.5 (2019) in Black women/White women. Similar trends were noted in aortic dissection (Black men/White men, 1.2-1.8; and Black women/White women, 1.5-1.7), arterial thrombosis (Black men/White men, 1.0-1.3; and Black women/White women, 0.9-1.3), and venous thrombosis/disease (Black men/White men, 1.7-1.8; and Black women/White women, 1.7-2.0). Conclusions In this retrospective review of death certificate data in the United States, we demonstrate continued significant disparities between Black and White populations in PVD mortality and its subtypes. Future studies should investigate etiologies and social determinants of PVD mortality.

Percutaneous mechanical thrombectomy and extracorporeal membranous oxygenation: A case series.

BACKGROUND: Massive or high-risk pulmonary embolism (PE) is a potentially life-threatening diagnosis with significant morbidity and mortality if treatment is delayed. Extracorporeal membrane oxygenation (ECMO) and large bore thrombectomy (LBT) in isolation have been used to stabilize and treat patients with massive PE, however, literature describing the combination of both modalities is lacking. We present a case series involving 9 patients who underwent combined ECMO and LBT and their outcomes. METHODS: This was a retrospective chart review of patients with confirmed PE, who underwent LBT and ECMO. We retrospectively captured clinical, therapeutic, and outcome data at the time of pulmonary embolism response team (PERT) activation and during the follow-up period for up to 90 days. RESULTS: Nine patients who had PERT activation with confirmed PE diagnosis have undergone combined LBT and ECMO initiation since the advent of our PERT program. The median age was 57 (range 28-68) years. Six patients out of 9 (55%) had cardiac arrest before therapy. All patients exhibited right heart strain on computed tomography and echocardiogram. The median ECMO duration was 5 days (range 2.3-11.6 days), with mean hospitalization of 16.1 days (range 1.5-30.9). Mortality was 22% at 90-day follow-up period. CONCLUSION: Patients with massive pulmonary embolism who suffer cardiac arrest have significant morbidity and mortality. ECMO in combination with LBT is a viable treatment option for patients with significant hemodynamic compromise.

Multi-variable biomarker approach in identifying incident heart failure in chronic kidney disease: results from the Chronic Renal Insufficiency Cohort study.

AIMS: Heart failure (HF) is one of the leading causes of cardiovascular morbidity and mortality in the ever-growing population of patients with chronic kidney disease (CKD). There is a need to enhance early prediction to initiate treatment in CKD. We sought to study the feasibility of a multi-variable biomarker approach to predict incident HF risk in CKD. METHODS AND RESULTS: We examined 3182 adults enrolled in the Chronic Renal Insufficiency Cohort (CRIC) without prevalent HF who underwent serum/plasma assays for 11 blood biomarkers at baseline visit (B-type natriuretic peptide [BNP], CXC motif chemokine ligand 12, fibrinogen, fractalkine, high-sensitivity C-reactive protein, myeloperoxidase, high-sensitivity troponin T (hsTnT), fibroblast growth factor 23 [FGF23], neutrophil gelatinase-associated lipocalin, fetuin A, aldosterone). The population was randomly divided into derivation (n = 1629) and validation (n = 1553) cohorts. Biomarkers that were associated with HF after adjustment for established HF risk factors were combined into an overall biomarker score (number of biomarkers above the Youden's index cut-off value). Cox regression was used to explore the predictive role of a biomarker panel to predict incident HF. A total of 411 patients developed incident HF at a median follow-up of 7 years. In the derivation cohort, four biomarkers were associated with HF (BNP, FGF23, fibrinogen, hsTnT). In a model combining all four biomarkers, BNP (hazard ratio [HR] 2.96 [95% confidence interval 2.14-4.09]), FGF23 (HR 1.74 [1.30-2.32]), fibrinogen (HR 2.40 [1.74-3.30]), and hsTnT (HR 2.89 [2.06-4.04]) were associated with incident HF. The incidence of HF increased with the biomarker score, to a similar degree in both derivation and validation cohorts: from 2.0% in score of 0% to 46.6% in score of 4 in the derivation cohort to 2.4% in score of 0% to 43.5% in score of 4 in the validation cohort. A model incorporating biomarkers in addition to clinical factors reclassified risk in 601 (19%) participants (352 [11%] participants to higher risk and 249 [8%] to lower risk) compared with clinical risk model alone (net reclassification improvement of 0.16). CONCLUSION: A basic panel of four blood biomarkers (BNP, FGF23, fibrinogen, and hsTnT) can be used as a standalone score to predict incident HF in patients with CKD allowing early identification of patients at high-risk for HF. Addition of biomarker score to clinical risk model modestly reclassifies HF risk and slightly improves discrimination.

Case series of closure devices complications.

Vascular closure devices (VCD) are effective at achieving hemostasis. VCD failure is attributed to underlying arterial disease, leading to a hazardous situation for obtaining contralateral femoral access. Radial-to-peripheral (R2P) access has emerged as a safe option to rescue these procedural complications. Here, we present two cases of VCD failure rescue utilizing R2P and outline this approach step-by-step.

Routine Use of the "Penumbra" Thrombectomy Device in Myocardial Infarction: A Real-World Experience-ROPUST Study.

Objectives: Evaluation of the safety and efficacy of the Penumbra device as an adjunct to percutaneous coronary intervention (PCI) in patients with myocardial infarction (MI) and a large thrombus burden that requires thrombectomy. Background: For patients with acute MI, PCI is the primary reperfusion method. Large thrombus burden has always been a limitation of successful reperfusion. However, the use of current aspiration devices has been associated with an increased incidence of stroke. Methods: We performed a retrospective chart review at the University Hospitals Medical Center in Cleveland. Our study included data from patients who underwent PCI for ST segment elevation myocardial infarction (STEMI) and non-ST segment elevation myocardial infarction (NSTEMI) assisted by the Penumbra Cat RX device (a wide-lumen thrombus aspiration catheter) between May 2019 and February 2021. The primary outcome was the final thrombolysis in myocardial infarction (TIMI) flow. The secondary endpoints were a composite of adverse cardiac events at 6 months. About 50% of the patients did undergo transfemoral PCI as per preference of individual operators. The Penumbra thrombectomy device can be used both by radial and femoral approach and does not need any different guide catheter use. Results: TIMI flow 3 was achieved in 111 patients (90.2%). The secondary endpoint occurred in 11 patients (8.9%, 3 MI, 8 heart failure hospitalizations). There were no stroke events or device-related complications. The door-to-balloon time was not affected by usage of the Penumbra device. Failure in the restoration of TIMI 3 flow was associated with the use of balloon angioplasty prior to the application of the Penumbra device, leading to distal embolization. Conclusions: The Penumbra Cat RX provides safe and effective thrombus removal with better clinical outcomes, even in high-risk patients with acute coronary syndrome.

Non-invasive Imaging in the Evaluation of Cardiac Allograft Vasculopathy in Heart Transplantation: A Systematic Review.

Cardiac allograft vasculopathy (CAV) is the leading cause of long-term graft dysfunction in patients with heart transplantation and is linked with significant morbidity and mortality. Currently, the gold standard for diagnosing CAV is coronary imaging with intravascular ultrasound during traditional invasive coronary angiography. Invasive imaging, however, carries increased procedural risk and expense to patients in addition to requiring an experienced interventionalist. With the improvements in non-invasive cardiac imaging modalities such as transthoracic echocardiography, computed tomography, magnetic resonance imaging and positron emission tomography, an alternative non-invasive imaging approach for the early detection of CAV may be feasible. In this systematic review, we explored the literature to investigate the utility of non-invasive imaging in diagnosis of CAV in >3000 patients across 49 studies. We also discuss the strengths and weaknesses for each imaging modality. Overall, all 4 imaging modalities show good to excellent accuracy for identifying CAV with significant variations across studies. Majority of the studies compared non-invasive imaging with invasive coronary angiography without intravascular imaging. In summary, non-invasive imaging modalities offer an alternative approach to invasive coronary imaging for CAV. Future studies should investigate longitudinal non-invasive protocols in low-risk patients after heart transplantation.

Myeloperoxidase is Independently Associated with Incident Heart Failure in Patients with Coronary Artery Disease and Kidney Disease.

Chronic kidney disease (CKD) is associated with high cardiovascular risk and mortality. Myeloperoxidase (MPO) has been linked to adverse events in patients with mild-moderate CKD. We sought to investigate whether MPO levels are associated with adverse outcomes in patients with CKD. We studied participants with mild to moderate CKD in the prospective chronic renal insufficiency cohort (CRIC). We followed patients for incident heart failure (HF), death, and composite outcome (myocardial infarction, incident peripheral arterial disease, cerebrovascular accident and death). A total of 3872 patients were included (2702 without CVD, 1170 with CVD). After multiple adjustments, doubling of MPO in patients with prior CAD was associated with risk of HF (HR 1.15 [1.01-1.30], P = 0.032) and mortality (HR 1.16 [1.05-1.30], P = 0.005), and composite outcome of MI, PAD, CVA and death (HR 1.12 [1.01-1.25], P = 0.031). In this cohort of patients with mild to moderate CKD and CAD, MPO levels are independently associated with incident HF, all-cause mortality, and a composite outcome.

Diaphragmatic pacemaker-induced ventricular tachycardia leading to cardiac arrest: a case report.

BACKGROUND: Diaphragmatic pacemakers are used to assist respiration in ventilator-dependent patients. Electromagnetic interference with intrinsic cardiac electrical activity is a theoretical risk but has never been reported in the literature. This case highlights a serious complication of cardiac arrest as a result of diaphragmatic pacing. CASE SUMMARY: We report a quadriplegic patient with recent diaphragmatic pacemaker implantation who presented with ventricular tachycardia leading to cardiac arrest. Extensive workup was negative for other aetiologies for ventricular arrhythmias. Reduction of the left-sided diaphragmatic pacemaker voltage resulted in cessation of ventricular ectopy. DISCUSSION: Diaphragmatic pacing at high voltages can cause unwanted transmission of impulses to the cardiac myocytes as a rare complication. This should be noted as a possible complication of intramuscular diaphragmatic pacing, and efforts should be taken to circumvent this risk in the future.

Cytarabine-induced pericarditis confirmed using cardiac MRI: A case report.

Pericarditis is a rare but debilitating complication of cytarabine therapy. While echocardiography can aid with the diagnosis, cardiac MRI has superior accuracy in establishing the diagnosis. In this case, we describe a 65-year-old patient receiving cytarabine as part of induction chemotherapy for acute myeloid leukemia who developed acute pericarditis. Her cardiac MRI revealed pericardial edema on T2-weighted STIR imaging and pericardial late gadolinium enhancement which confirmed the diagnosis.