Reduced Leaflet Motion after Transcatheter Aortic-Valve Replacement.

BACKGROUND: Subclinical leaflet thickening and reduced leaflet motion of bioprosthetic aortic valves have been documented by four-dimensional computed tomography (CT). Whether anticoagulation can reduce these phenomena after transcatheter aortic-valve replacement (TAVR) is not known. METHODS: In a substudy of a large randomized trial, we randomly assigned patients who had undergone successful TAVR and who did not have an indication for long-term anticoagulation to a rivaroxaban-based antithrombotic strategy (rivaroxaban [10 mg] plus aspirin [75 to 100 mg] once daily) or an antiplatelet-based strategy (clopidogrel [75 mg] plus aspirin [75 to 100 mg] once daily). Patients underwent evaluation by four-dimensional CT at a mean (±SD) of 90±15 days after randomization. The primary end point was the percentage of patients with at least one prosthetic valve leaflet with grade 3 or higher motion reduction (i.e., involving >50% of the leaflet). Leaflet thickening was also assessed. RESULTS: A total of 231 patients were enrolled. At least one prosthetic valve leaflet with grade 3 or higher motion reduction was found in 2 of 97 patients (2.1%) who had scans that could be evaluated in the rivaroxaban group, as compared with 11 of 101 (10.9%) in the antiplatelet group (difference, -8.8 percentage points; 95% confidence interval [CI], -16.5 to -1.9; P = 0.01). Thickening of at least one leaflet was observed in 12 of 97 patients (12.4%) in the rivaroxaban group and in 33 of 102 (32.4%) in the antiplatelet group (difference, -20.0 percentage points; 95% CI, -30.9 to -8.5). In the main trial, the risk of death or thromboembolic events and the risk of life-threatening, disabling, or major bleeding were higher with rivaroxaban (hazard ratios of 1.35 and 1.50, respectively). CONCLUSIONS: In a substudy of a trial involving patients without an indication for long-term anticoagulation who had undergone successful TAVR, a rivaroxaban-based antithrombotic strategy was more effective than an antiplatelet-based strategy in preventing subclinical leaflet-motion abnormalities. However, in the main trial, the rivaroxaban-based strategy was associated with a higher risk of death or thromboembolic complications and a higher risk of bleeding than the antiplatelet-based strategy. (Funded by Bayer; GALILEO-4D ClinicalTrials.gov number, NCT02833948.).

Delirium Among Hospitalized Older Adults With Acute Heart Failure Exacerbation.

BACKGROUND: Delirium among older adults hospitalized with acute heart failure is associated with increased mortality. However, studies concomitantly assessing the association of delirium with both clinical and economic outcomes in this population, such as mortality, hospital cost, or length of stay, are lacking. METHODS AND RESULTS: We conducted a retrospective observational study using National Inpatient Sample data from 2011 to 2014. Using multivariable logistic regression, we assessed the association of delirium with in-hospital mortality, then estimated the incremental hospital cost and excessive length of stay adjusting for demographic and clinical factors using multivariable generalized linear regression. The association of other medical complications on clinical and economic outcomes was also assessed. A total of 568,565 (weighted N = 2,826,131) hospitalizations of patients 65 years or older with acute heart failure from 2011 to 2014 were included in the final analysis. The reported prevalence of delirium was 4.53%. After multivariable adjustment, delirium was associated with a 2.35-fold increase in the odds of in-hospital mortality (95% confidence interval [CI] 2.23-2.47), which was lower than the odds ratio for sepsis/septicemia (5.36; 95% CI, 5.02-5.72) or respiratory failure (4.53; 95% CI, 4.38-4.69), but similar to that for acute kidney injury (2.39; 95% CI, 2.31-2.48) and higher than for non-ST elevation myocardial infarct (1.57; 95% CI, 1.46-1.68). Delirium increased the total hospital cost by $4,262 (95% CI, $4,002-4,521) and the length of stay by 1.73 days (95% CI, 1.68-1.78), which was slightly lower than, but similar to, acute kidney injury ($4,771; 95% CI, $4,644-4,897) and 1.82 days (95% CI, 1.79-1.84), and higher than non-ST elevation myocardial infarct ($1,907; 95% CI, $1,629-2,185) and 0.31 days (95% CI, 0.25-0.37). CONCLUSIONS: Delirium was associated with increased in-hospital mortality, total hospital cost, and length of stay, and the magnitude of the effect was similar to that for acute kidney injury. Enhanced efforts to prevent delirium are needed to decrease its adverse impact on clinical and economic outcomes for hospitalized older adults with acute heart failure.

Validation of scoring system predicting permanent pacemaker implantation after transcatheter aortic valve replacement.

BACKGROUND: Transcatheter aortic valve replacement (TAVR) is being increasingly performed in patients with severe aortic stenosis. Despite newer generation valves, atrioventricular (AV) conduction disturbance is a common complication, necessitating permanent pacemaker (PPM) implantation in about 10% of patients. Hence, it is imperative to improve periprocedural risk stratification to predict PPM implantation after TAVR. The objective of this study was to externally validate a novel risk-stratification model derived from the National Inpatient Sample (NIS) database that predicts risk of PPM from TAVR. METHODS: Components of the score included pre-TAVR left and right bundle branch block, sinus bradycardia, second-degree AV block, and transfemoral approach. The scoring system was applied to 917 patients undergoing TAVR at our institution from November 2011 to February 2017. We assessed its predictive accuracy by looking at two components: discrimination using the C-statistic and calibration using the Hosmer-Lemeshow goodness of fit test. RESULTS: Ninety patients (9.8%) required PPM. The scoring system showed good discrimination with C-statistic score of 0.6743 (95% CI: 0.618-0.729). Higher scores suggested increased PPM risk, that is, 7.3% with score ⩽3, 19.23% with score 4-6, and 37.50% with score ≥7. Patients requiring PPM were older (81.4 versus 78.7 years, P = .002). Length of stay and in-hospital mortality was significantly higher in PPM group. CONCLUSIONS: The NIS database derived PPM risk prediction model was successfully validated in our database with acceptable discriminative and gradation capacity. It is a simple but valuable tool for patient counseling pre-TAVR and in identifying high-risk patients.

Major trials in coronary intervention from 2018.

PURPOSE OF REVIEW: This article will review the major clinical trials related to coronary intervention that were released in 2018. Areas of interest include lesion assessment, novel stent design, acute coronary syndromes (ACSs), and major breakthroughs in chronic total occlusion interventions. RECENT FINDINGS: The benefit of intracoronary imaging and hemodynamic assessment was demonstrated by multiple studies, which found improved procedural and clinical outcomes in patients who underwent advanced assessment of intracoronary lesions. The optimal use of drug-coated balloons in coronary disease still remains unclear with conflicting data regarding the benefit of DCB over everolimus-eluting stents for the treatment of in-stent restenosis. Trials in bioresorbable scaffolds also saw a high level of interest after the ABSORB IV trial showed promising results with changes in implantation technique. Multiple studies evaluated complete revascularization versus infarct-related only revascularization in patients with ACS; however, data was conflicting in regard to what is the best strategy. Lastly, the EUROCTO study was released in 2018 and was the first trial to show symptomatic benefit of revascularization of chronic total occlusions. SUMMARY: The ESC/EACTS guidelines on complete versus partial revascularization, treatment of in-stent restenosis, and revascularization during cardiogenic shock were updated to reflect data obtained from trials released in 2018.

Outcomes and readmissions after transcatheter and surgical aortic valve replacement in patients with cirrhosis: A propensity matched analysis.

BACKGROUND: The data on the comparative outcomes and readmissions after transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR) in patients with cirrhosis are limited. We compared mortality, complications, discharge disposition, 30-day readmission rates, length of stay, and cost of hospitalization in cirrhotic patients undergoing TAVR and SAVR. METHODS: The National Inpatient Sample (NIS) and the National Readmission Database (NRD) were used for the study. The International Classification of Diseases-9th version was used to define cohorts of patients undergoing TAVR and SAVR. Patients undergoing concomitant other valve or coronary bypass surgery were excluded. Propensity-score matching was used to compare the outcomes between the groups. RESULTS: From 2012 to 2014, a total of 126 and 157 patients with cirrhosis underwent TAVR and SAVR, respectively. Of the 283 patients, 16 (5.7%) died during the same hospitalization. We found 345 patients with cirrhosis who had undergone an aortic valve replacement (156 with TAVR, and 189 with SAVR) in the 2013 and 2014 NRD. On propensity matching, there were no significant differences between the in-hospital mortality, readmissions, hospitalization costs, and discharges to home within the TAVR and SAVR groups. However, post-procedure length of stay (6.3 vs. 10.2 days; P < 0.001) and blood transfusion rates (22% vs. 58%; P < 0.001) were significantly lower in TAVR patients. CONCLUSIONS: Cirrhotic patients undergoing TAVR has high, but similar mortality and 30-day readmission rates when compared to SAVR; however, has shorter length of stay and lower blood transfusion rates.

Early readmissions after transcatheter and surgical aortic valve replacement.

OBJECTIVES: We aimed to determine and compare the prevalence, and predictors of readmissions after the transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR). BACKGROUND: There are limited data on the readmission rates after TAVR in comparison with SAVR. METHODS: We analyzed the data from 2013 National Readmission Database. Propensity-matched pairs were used to analyze differences in readmission rates between TAVR and SAVR for patients aged ≥65. RESULTS: A total of 24,020 (TAVR-transfemoral 3,469, TAVR-transapical 1,433, SAVR 19,118) patients were included. The readmission rates were not statistically different for all propensity-matched TAVR and SAVR patients (17.2% vs. 20.6%, P = 0.28). However, in subgroup analysis, transapical TAVR had the highest readmission rate (22.8% vs. 16.5% vs. 16.0%, P < 0.001, respectively) and readmission leading to death (7.1% vs. 5.3% vs. 3.9%, P = 0.022, respectively) when compared with transfemoral TAVR and SAVR. In all the groups, two-thirds of readmissions were due to noncardiac causes. Congestive heart failure (CHF) and arrhythmia were the most frequent cardiac etiologies. The independent predictors of readmission were female sex, CHF, and chronic obstructive pulmonary disease. Patients who received care in teaching hospitals had lower probability of readmission. CONCLUSIONS: One of six patients were readmitted within 30 days after the aortic valve replacement. On propensity score analysis, there were no significant differences between the early readmission rates between TAVR and SAVR groups. However, the patients undergoing transapical TAVR were at higher risk for readmission, and subsequent deaths when compared with transfemoral TAVR and SAVR. © 2017 Wiley Periodicals, Inc.

Minimally Invasive Versus Transcatheter and Surgical Aortic Valve Replacement: A Propensity Matched Study.

BACKGROUND: An increasing number of options exist for the treatment of severe symptomatic aortic stenosis. The study aim was to compare short-term outcomes in patients undergoing surgical aortic valve replacement (SAVR), minimally invasive aortic valve replacement (MIAVR), and transcatheter aortic valve replacement (TAVR). METHODS: A multi-institutional retrospective review of 2,571 patients undergoing SAVR (n = 842), MIAVR via right anterior thoracotomy (n = 699) and TAVR (n = 1,030) between 2011 and 2014 was conducted. TAVR patients were further stratified as either transfemoral (TF) or transapical (TA). Propensity matching was performed between MIAVR and SAVR (384 pairs), MIAVR and TA-TAVR (115 pairs), and MIAVR and TF-TAVR (247 pairs). RESULTS: Total numbers of AVR increased between 2011 and 2014. When stratified by procedure type, MIAVR and TF-TAVR accounted for most of the growth, while TA-TAVR and SAVR each experienced a decreased volume. Propensity matched comparisons of SAVR, TF-TAVR, and TA-TAVR versus MIAVR revealed no difference in 30-day mortality. TF-TAVR versus MIAVR revealed that MIAVR had a decreased rate of stroke (0.4% versus 3.6%, p = 0.02) and increased atrial fibrillation (AF; 19.4% versus 4%, p <0.01). When compared to SAVR, MIAVR had a lower incidence of AF (19% versus 32.6%, p <0.01). MIAVR exhibited decreased ventilation time (27.2 versus 134 h, p = 0.03) and intensive care unit time (63.7 versus 92.7 h, p = 0.02) compared to TA-TAVR. CONCLUSIONS: During recent years, MIAVR and TFTAVR have experienced significant growth in volume with near-comparable short-term outcomes, while SAVR and TA-TAVR volumes have declined. These results underscore the importance of surgeons adopting MIAVR and TF-TAVR techniques in order to offer patients optimal outcomes.

Comparison of 30-day mortality and myocardial scar indices for patients treated with prehospital reduced dose fibrinolytic followed by percutaneous coronary intervention versus percutaneous coronary intervention alone for treatment of ST-elevation myocardial infarction.

OBJECTIVES: We investigated whether prehospital, reduced dose fibrinolysis coupled with urgent percutaneous coronary intervention (FAST-PCI) reduces mortality and cardiac magnetic resonance (CMR) measures of infarct size, compared with primary percutaneous coronary intervention (PPCI), in patients with ST-elevation myocardial infarction (STEMI). BACKGROUND: Current standard therapy for STEMI is PPCI. However, FAST-PCI may shorten ischemic time (IT) and improve outcomes. METHODS: Eligible STEMI patients received prehospital, reduced dose fibrinolysis along with standard therapy, and were transported for urgent percutaneous coronary intervention, or else they received usual treatment without prehospital fibrinolysis. Patients were divided retrospectively into four groups based on IT (<120, 120-179, 180-239 min, ≥240) for a mortality analysis cohort, and into three groups (<120, 120-179, ≥180 min) for a CMR analysis cohort. Within each IT group, patients were compared by FAST-PCI vs. PPCI strategy. RESULTS: Between 1/2007 and 2/2014, 1,112 STEMI patients were treated. FAST-PCI was employed in 551 and PPCI in 561. Of these, 357 (32.1%) underwent CMR. The treatment groups were well matched. In STEMI patients with short IT (<120 and 120-179 min groups), those treated by FAST-PCI had lower 30-day mortality and myocardial scar sizes compared with PPCI treatment. For IT ≥180 min, the mortalities and myocardial scar sizes were equivalent for both groups. CONCLUSIONS: In STEMI patients with IT <180 min, FAST-PCI may reduce 30-day mortality and myocardial scar size compared with PPCI. This suggests that infarct interventions must be instituted within 3 hr of symptom onset in order to detect an optimal beneficial effect both clinically and by CMR measurement. © 2016 Wiley Periodicals, Inc.

Ischemic time is a better predictor than door-to-balloon time for mortality and infarct size in ST-elevation myocardial infarction.

BACKGROUND: Current guidelines for ST-elevation myocardial infarction (STEMI) recommend early revascularization with optimal ischemic time (IT) < 120 min and door-to-balloon (D2B) time < 90 min. The focus of most studies has been D2B time, while IT is not frequently reported. We tested the hypothesis that total IT is a better predictor than D2B time for mortality and infarct size. METHODS AND RESULTS: Between December 2008 and April 2013, 786 patients with STEMI were treated in our STEMI center, and 262 of these had cardiac magnetic resonance imaging 3-5 days after the index event. Total IT was defined as time from symptom onset to device activation, while D2B time was defined as hospital arrival to device activation. Patients were divided into three groups according to IT (<120, 120-239, ≥240 min) and into four groups according to D2B time (<30, 30-59, 60-89, ≥90 min). Baseline demographics including age, cardiac risk factors, and LAD infarct location were similar between groups. The 30-day mortality rate significantly increased across IT groups but did not correlate with D2B time groups. Similarly, infarct size significantly increased across IT groups but did not correlate with D2B time groups. CONCLUSIONS: In STEMI patients, IT was a better predictor than D2B time for 30-day mortality and infarct size. Our findings suggest that the focus of STEMI care should be directed at early initiation of therapy and minimizing IT rather than on D2B time alone. The potential impact of IT reporting in current STEMI registries merits further consideration. © 2015 Wiley Periodicals, Inc.

Safety and efficacy of coil embolization of the septal perforator for septal ablation in patients with hypertrophic obstructive cardiomyopathy.

OBJECTIVE: The objective of this study was to evaluate safety, efficacy, and durability of coil embolization of the major septal perforator of the left anterior descending coronary artery in patients with hypertrophic obstructive cardiomyopathy (HOCM). BACKGROUND: The long-term effect of coil embolization therapy in HOCM patients is not well defined. METHODS: We evaluated 24 symptomatic HOCM patients in a single center who underwent coil embolization of the septal perforator artery(ies). RESULTS: Twenty-four patients on optimal medical therapy presented with NYHA functional class III (75%) or IV (25%) underwent the procedure. The procedure was successful in 22 patients, with significant reduction in left ventricular outflow tract (LVOT) gradient. The functional class significantly improved to class I (54.2%) or II (41.7%) (P < = 0.01). The LVOT gradient was significantly lower during follow up echocardiography (21.3 ± 19 vs. 81.3 ± 41 mm Hg; P < = 0.01). Interventricular septal thickness decreased over time (16.3 ± 3 vs. 18.5 ± 2 mm, P< = 0.01). The procedure was aborted in one of the patients after the third coil prolapsed from the septal perforator in to the left anterior descending artery. The coil was effectively snared out. Three patients required additional coil placement in the second major septal perforator. New permanent pacemaker placement was required in one patient. However, three patients underwent ICD implantation at follow up due to ventricular arrhythmias. CONCLUSIONS: The results of this study suggest that the use of coil embolization for septal ablation is safe, effective, and durable in patients with symptomatic HOCM. © 2016 Wiley Periodicals, Inc.

5-Year Prospective Evaluation of Mitral Valve-in-Valve, Valve-in-Ring, and Valve-in-MAC Outcomes: MITRAL Trial Final Results.

BACKGROUND: The MITRAL (Mitral Implantation of Transcatheter Valves) trial is the first prospective trial to evaluate the safety and feasibility of balloon-expandable aortic transcatheter heart valves in patients with failed surgical bioprostheses or annuloplasty rings and severe mitral annular calcification treated with mitral valve-in-valve (MViV), valve-in-ring (MViR), or valve-in-mitral annular calcification (ViMAC). OBJECTIVES: The aim of this study was to evaluate 5-year outcomes among these patients. METHODS: A multicenter prospective study was conducted among patients at high surgical risk at 13 U.S. sites. Patients underwent MViV (n = 30), MViR (n = 30), or ViMAC (n = 31) and were followed annually for 5 years. Kansas City Cardiomyopathy Questionnaire scores were obtained at baseline and follow-up visits. Echocardiograms were analyzed at independent core laboratories. RESULTS: A total of 91 patients underwent transcatheter mitral valve replacement (February 2015 to December 2017). The mean age was 74.3 ± 8.9 years. At 5-year follow-up, the lowest all-cause mortality was observed in the MViV group (21.4%), 94.7% of patients were in NYHA functional class I or II, and the mean mitral gradient was 6.6 ± 2.5 mm Hg. The MViR and ViMAC groups had higher all-cause mortality (65.5% and 67.9%), most survivors were in NYHA functional classes I and II (50% and 55.6%), and mean mitral gradients remained stable (5.8 ± 0.1 and 6.7 ± 2.5 mm Hg). Significant improvements in Kansas City Cardiomyopathy Questionnaire scores were observed when all 3 arms were pooled. CONCLUSIONS: MViV, MViR, and ViMAC procedures were associated with sustained improvement of heart failure symptoms and quality of life among survivors at 5 years. Transcatheter heart valve function remained stable in all 3 groups. Patients treated with MViV had excellent survival at 5 years, whereas survival was lower in the MViR and ViMAC groups, consistent with underlying disease severity. Patients with more residual mitral regurgitation had higher mortality.

Determinants of change in code status among patients with cardiopulmonary arrest admitted to the intensive care unit.

BACKGROUND: Patients with cardiopulmonary arrest often have a poor prognosis, prompting discussion with families about code status. The impact of socioeconomic factors, demographics, medical comorbidities and medical interventions on code status changes is not well understood. METHODS: This retrospective study included adult patients presenting with cardiac arrest to the intensive care unit of a hospital group between 5/1/2010-5/1/2020. We extracted chart data on socioeconomic factors, demographics, and medical comorbidities. RESULTS: We identified 1,254 patients, of which 57.5% were males. Age was different across the groups with (61.2 ± 15.5 years) and without (61.2 ± 15.5 years) code status change (p= <0.0001). Code status was changed in 583 patients (46.5%). Among patients with code status change, the highest prevalence was White patients (34.8%), followed by African Americans (30.9%), and Hispanics (25.4%). Compared to patients who did not have a code status change, those with a change in code status were older (66.7 ± 14.8 years vs 61.2 ± 15.5 years). They were also more likely to receive vasopressor/inotropic support (74.6% vs 58.5%), and broad-spectrum antibiotics (70.3% vs 57.7%). Insurance status, ethnicity, religion, education, and salary did not lead to statistically significant changes in code status. CONCLUSIONS: In patients with cardiopulmonary arrest, code status change was more likely to be influenced by the presence of medical comorbidities and medical interventions during hospitalization rather than by socioeconomic factors.

Percutaneous device closure of congenital and iatrogenic ventricular septal defects in adult patients.

OBJECTIVES: We report our 10-year experience with percutaneous closure of adult congenital and acquired (non-post-infarct) ventricular septal defects (VSDs) using different types of Amplatzer occluder devices. BACKGROUND: Adult congenital and acquired VSDs may produce significant morbidity and mortality. Furthermore, such VSDs pose a significant surgical challenge. METHODS: Between February 2000 and August 2009, data were retrospectively reviewed from 28 patients who underwent 29 procedures for percutaneous device closure of hemodynamically significant VSDs. Seventeen had unrepaired congenital VSDs, 10 had post-operative VSDs (5 with residual patch-margin defects, 4 post-aortic valve replacement, 1 post-myomectomy), and one had an acquired traumatic VSD. INDICATIONS FOR CLOSURE INCLUDED: symptoms related to significant shunt (dyspnea on exertion); unexplained deterioration of LV function, and/or LV dilation; recurrent endocarditis, and pulmonary hypertension. Outcome parameters were procedural success, procedure-related complications, evidence of residual shunt by echocardiography, and improvement in the signs/symptoms for which the procedure was performed. The mean follow-up interval was 68 months. RESULTS: Of the 28 patients studied, a single VSD was present in 26 patients, while one patient had two defects, and one patient had one defect on the LV side with three openings at the RV side. The median size of the defects by echocardiography was 6 mm. A device was successfully implanted in 28 of 29 (97%) procedures and 28 of 28 (100%) patients. PROCEDURE-RELATED COMPLICATIONS OCCURRED IN TWO CASES: one involving an access site hematoma not requiring transfusion as well as nonsustained ventricular tachycardia that resolved spontaneously and the other involving acute mitral regurgitation due to inadvertent trapping of the anterior mitral valve leaflet between the left ventricular disk and the septum that was resolved by recapturing of the disk. There was immediate complete closure in 20 patients (71%). In six cases there was trivial residual shunt and in two patients the residual shunt was mild. At the latest follow-up, four of the eight with a residual shunt had no shunt and in the remaining four the residual shunt was trivial. Among symptomatic patients 18 (64%), there was marked improvement in symptoms and for those patients 17 (61%) for whom the procedure was performed to address left ventricular enlargement, there was reduction or stabilization in LV size on serial echoes. CONCLUSIONS: Percutaneous closure of VSDs in the adult patient appears to be safe and effective.

Racial and Socioeconomic Disparities in Out-Of-Hospital Cardiac Arrest Outcomes: Artificial Intelligence-Augmented Propensity Score and Geospatial Cohort Analysis of 3,952 Patients.

INTRODUCTION: Social disparities in out-of-hospital cardiac arrest (OHCA) outcomes are preventable, costly, and unjust. We sought to perform the first large artificial intelligence- (AI-) guided statistical and geographic information system (GIS) analysis of a multiyear and multisite cohort for OHCA outcomes (incidence and poor neurological disposition). METHOD: We conducted a retrospective cohort analysis of a prospectively collected multicenter dataset of adult patients who sequentially presented to Houston metro area hospitals from 01/01/07-01/01/16. Then AI-based machine learning (backward propagation neural network) augmented multivariable regression and GIS heat mapping were performed. RESULTS: Of 3,952 OHCA patients across 38 hospitals, African Americans were the most likely to suffer OHCA despite representing a significantly lower percentage of the population (42.6 versus 22.8%; p < 0.001). Compared to Caucasians, they were significantly more likely to have poor neurological disposition (OR 2.21, 95%CI 1.25-3.92; p=0.006) and be discharged to a facility instead of home (OR 1.39, 95%CI 1.05-1.85; p=0.023). Compared to the safety net hospital system primarily serving poorer African Americans, the university hospital serving primarily higher income commercially and Medicare insured patients had the lowest odds of death (OR 0.45, p < 0.001). Each additional $10,000 above median household income was associated with a decrease in the total number of cardiac arrests per zip code by 2.86 (95%CI -4.26- -1.46; p < 0.001); zip codes with a median income above $54,600 versus the federal poverty level had 14.62 fewer arrests (p < 0.001). GIS maps showed convergence of the greater density of poor neurologic outcome cases and greater density of poorer African American residences. CONCLUSION: This large, longitudinal AI-guided analysis statistically and geographically identifies racial and socioeconomic disparities in OHCA outcomes in a way that may allow targeted medical and public health coordinated efforts to improve clinical, cost, and social equity outcomes.

Decreasing Rates of Acute Kidney Injury After Percutaneous Coronary Interventions Through Education and Standardized Order Sets in a Large Tertiary Teaching Center.

Acute kidney injury (AKI) is a common complication of percutaneous coronary interventions (PCI), and it is associated with increased morbidity, mortality, and healthcare costs. Post-PCI AKI is a major quality outcome measured by the National Cardiovascular Data Registry for hospitals that perform PCI. We report the experience of a large, tertiary center with high standardized, post-PCI AKI rates in which we implemented multilevel interventions that included: (1) a multidisciplinary education module for all personnel involved in care of patients undergoing cardiac angiography, (2) a standardized electronic medical record based preprocedure hydration protocol order set for patients undergoing cardiac angiography, and (3) a hydration task list to be completed by the care team the evening before the procedure or prior to admission. All this resulted in a constant decrease of the post-PCI AKI rates in remarkable magnitude, significantly stronger than the national tendency, demonstrating a center-specific behavior.

TAVR and cancer: machine learning-augmented propensity score mortality and cost analysis in over 30 million patients.

INTRODUCTION: Cardiovascular disease (CVD) and cancer are the top mortality causes globally, yet little is known about how the diagnosis of cancer affects treatment options in patients with hemodynamically compromising aortic stenosis (AS). Patients with cancer often are excluded from aortic valve replacement (AVR) trials including trials with transcatheter AVR (TAVR) and surgical AVR (SAVR). This study looks at how cancer may influence treatment options and assesses the outcome of patients with cancer who undergo SAVR or TAVR intervention. Additionally, we sought to quantitate and compare both clinical and cost outcomes for patients with and without cancer. METHODS: This population-based case-control study uses the most recent year available National Inpatient Sample (NIS (2016) from the United States Department of Health and Human Services' Agency for Healthcare Research and Quality (AHRQ). Machine learning augmented propensity score adjusted multivariable regression was conducted based on the likelihood of undergoing TAVR versus medical management (MM) and TAVR versus SAVR with model optimization supported by backward propagation neural network machine learning. RESULTS: Of the 30,195,722 total hospital admissions, 39,254 (0.13%) TAVRs were performed, with significantly fewer performed in patients with versus without cancer even in those of comparable age and mortality risk (23.82% versus 76.18%, p < 0.001) despite having similar hospital and procedural mortality. Multivariable regression in patients with cancer demonstrated that mortality was similar for TAVR, MM, and SAVR, though LOS and cost was significantly lower for TAVR versus MM and comparable for TAVR versus SAVR. Patients with prostate cancer constituted the largest primary cancer among TAVR patients including those with metastatic disease. There were no significant race or geographic disparities for TAVR mortality. DISCUSSION: Comparison of aortic valve intervention in patients with and without cancer suggests that interventions are underutilized in the cancer population. This study suggests that patients with cancer including those with metastasis have similar inpatient outcomes to patients without cancer. Further, patients who have symptomatic AS and those with higher risk aortic valve disease should be offered the benefit of intervention. Modern techniques have reduced intervention-related adverse events, provided improved quality of life, and appear to be cost effective; these advantages should not necessarily be denied to patients with co-existing cancer.

Catastrophic Cardiac Events During Transcatheter Aortic Valve Replacement.

BACKGROUND: Perioperative complications of transcatheter aortic valve replacement (TAVR) are decreasing but can be catastrophic when they occur. Systematic reports of the nature of these events are lacking in the contemporary era. Our study aimed to report the incidence, outcomes, and perioperative management of catastrophic cardiac events in patients undergoing TAVR and to propose a working strategy to address these complications. METHODS: This is a retrospective cohort study of patients who developed catastrophic cardiac events during or immediately after TAVR between 2015 and 2019 at a single academic centre. RESULTS: Of 2102 patients who underwent TAVR, 51 (2.5%) developed catastrophic cardiac events. The causes included cardiac perforation and tamponade (n = 19, 37.3%), acute left- ventricular failure (n = 10, 19.6%), coronary artery obstruction (n = 10, 19.6%), aortic-root disruption (n = 7, 13.7%), and device embolization (n = 5, 9.8%). Twenty-four patients (47.0%) with catastrophic cardiac events required stabilization by either intra-aortic balloon counter-pulsation or extracorporeal membrane oxygenation. The in-hospital mortality rate increased by 11.7-fold for patients with catastrophic cardiac events compared with those without (25.5% vs 2.0%, P < 0.001). Patients who developed aortic root disruption had the highest mortality rate (42.8%) compared with the others. The incidence of catastrophic cardiac events remained stable over a 5-year period, but the associated mortality decreased from 38.5% in 2015 to 9.1% in 2019. CONCLUSIONS: Catastrophic cardiac events during TAVR are rare, but they account for a dramatic increase in perioperative mortality. Early recognition and development of a standardized perioperative team approach can help manage patients experiencing these complications.

Controversies on the Cusp: Anomalous Origin of the Left Coronary Artery From the Non-Coronary Cusp.

Anomalous origin of the left coronary artery from the non-coronary cusp (LCANCC) is extremely rare and its prognosis and management are still controversial. We present two cases of symptomatic women with LCANCC and a comprehensive review of 19 studies reporting the prevalence, presentation, and management of LCANCC among 174,262 patients. Despite case reports of LCANCC in the pediatric population suggest a much worse prognosis, the optimal risk-stratification scheme for this type of anomaly in adults is yet to be defined, and it should not necessarily be considered a benign condition solely based on its anatomic origin or lack of an interarterial course.