tbuckley/cabot-search huggingface dataset:
Abstract 13157: Deep Learning for Detection of Elevated Pulmonary Artery Wedge Pressure Using Standard Chest X-ray
Authors: Yukina Hirata, Kenya Kusunose, Hirotsugu Yamada, Takumasa Tsuji, Kohei Fujimori, Junichi Kotoku, Masataka Sata
Journal: Circulation (2020)

Introduction: Chest X-ray (CXR) is a useful and economical modality for the detection of congestive heart failure. However, the accuracy is limited by the subjective nature of its interpretation. Deep learning (DL) can be used to recognize diseases or findings objectively in various imaging modalities, and may outperform previous diagnostic techniques. Hypothesis: We hypothesized that DL-based analysis of CXR detect the presence of elevated pulmonary arterial wedge pressure (PAWP) in patients with suspected heart failure. Methods: We enrolled 1,013 patients with paired right heart catheterization and CXR performed from October 2009 to February 2020 in our hospital. DL algorithm for the detection of elevated PAWP was developed using the training dataset, based on a single CXR image. Independent evaluation cohort of 115 patients was performed using CXR-based DL model and echocardiographic data to detect the presence of high PAWP. The area under the receiver operating characteristic curve (AUC) was used to evaluate the performance of the DL-based models compared with echocardiographic data. Results: The study included 1,013 patients (mean age, 67±13 years; 569 males [56%]). The mean PAWP was 12.5±6.4 mmHg and 218 patients (22%) had more than 18mmHg. To detect high PAWP, the AUC produced by DL algorithms was effective, and the DL algorithm with the largest AUC was ResNet50. In an evaluation cohort, to detect high PAWP, the AUC using the DL model with CXR was similar to the AUC produced by the echocardiographic left ventricular diastolic dysfunction algorithm (0.77 vs. 0.70; respectively; p=0.27), and significantly higher than the AUC by measurements of echocardiographic parameters (ResNet50 vs. other parameters; all compared p &lt;0.05) (Figure) . Conclusions: The present results demonstrated that DL based on analysis of CXR can detect the presence of high PAWP. This finding suggests that the DL based approach may support an objective evaluation of CXR in the clinical setting.
Abstract 17377: Quantification of Arterial Stenosis Severity Based on the Changes in the Perfusion Wave Dynamics; a Novel Technology for Monitoring Peripheral Artery Disease
Authors: Tomer Heitner, Amit Livneh, Jonathan Lorber, Ron Karmeli, Amir Landesberg
Journal: Circulation (2020)

Introduction: Current screening modalities for peripheral artery disease (PAD) lack sensitivity especially in the elderly and diabetics, and there is an unmet need for early detection of restenosis after revascularization. Hypothesis: We have hypothesized that arterial stenosis is associated with adaptive arteriolar vasodilatation, which alters the downstream perfusion dynamics and prolongs the initial phase of the perfusion upstroke. These changes can be utilized for quantification of the arterial stenosis severity. Methods: We measured the lower leg perfusion with impedance plethysmography and compared it with other modalities used in the clinic and the gold-standard angiography. The various phases of the perfusion wave were identified by analyzing the first and second derivatives of the plethysmography. The signals were acquired from PAD patients before and after they underwent revascularization, to validate the ability to detect stenosis and successful revascularization. Results: Eighteen consenting patients were recruited (61±10 years old) and nineteen legs were treated. The perfusion upstroke encompasses 2 or 3 distinctive phases. An initial slow phase that is followed by a brisk upstroke and a final sallower augmentation in some patients. The slow phase duration (SPd) was 113±45 ms in extremities with above-knee (AK) arterial stenosis (n=17) while significantly shorter SPd of 26±0 ms was observed in limbs without AK stenoses (P = 0.011). In the AK extremities, the SPd significantly decreased to 52±40 ms after successful revascularization (P&lt;0.01). Moreover, in AK cases with a satisfactory post-operative result (Duplex assessment), the SPd dramatically decreased from 103±35 ms before revascularization to 35±18 ms afterward (P&lt;0.01, n=12). Conclusions: Analysis of the perfusion dynamic provides a gamut of precious indices. The SPd is a novel index that can detect and quantify the severity of arterial stenosis. The technology can significantly improve the surveillance of PAD patients and may be used for early detection of restenosis.
Abstract 16692: Spontaneous Coronary Artery Dissection Associated With Pregnancy
Authors: Angie S Lobo, Sharonne N Hayes, Patricia J Best, Carl Rose, Rajiv Gulati, Marysia Tweet
Journal: Circulation (2020)

Introduction: Spontaneous coronary artery dissection (SCAD) is a rare but life threatening cause of acute coronary syndrome and a common etiology of pregnancy-associated myocardial infarction (PAMI). Hypothesis: We aimed to examine the clinical presentation, treatment, and outcomes of the largest pregnancy associated-SCAD (P-SCAD) patient cohort to date. Methods: A total of 128 women enrolled in the Mayo Clinic SCAD Registry between 2010-2020 who were pregnant or up to 1 year postpartum at time of P-SCAD were identified. We subdivided P-SCAD in an “early” group with &lt;12 weeks of delivery and a “late” group presenting between &gt;12 weeks -12 months following delivery. Results: Among the 128 women with P-SCAD, 7(5%) occurred during pregnancy (2/7 first trimester, 5/7 third trimester). Of the 121 women with postpartum P-SCAD, 88/121(72%) occurred &lt;12 weeks of delivery and 33/121(27%) at 12 weeks to 1 year postpartum. The mean age of P-SCAD was 35.3 +/- 4 years (26-48). The most common symptom on presentation was chest pain 118/128(92%); 62/128(48%) presented with ST elevation MI and 58/128(45%) presented with non-ST elevation MI. Multivessel involvement occurred in 40/128(31%), left anterior descending artery (LAD) in 88/128(69%), and left main (LM) in 28/128(22%) of all P-SCAD. Percutaneous coronary intervention (PCI) was performed in 52/128(41%) with a success rate of 81%. Coronary artery bypass grafting was performed in 24/128(19%) of which 6/24 patients had an unsuccessful PCI, 14/24 had proximal or multivessel SCAD, and 4/24 had persistent or extension of initial SCAD. Of those treated conservatively 52/128(40%), 11/52(21%) had LM and LAD. Among all the P-SCAD patients, 84/128 (66%) were screened for an underlying arteriopathy, of whom 44 (52 %) were diagnosed with fibromuscular dysplasia. At a median follow up of 3 years (IQR 1 to 6), 12/128 (9%) of all P-SCAD survivors had a recurrent SCAD event and 7/12 (58%) were within 1 year postpartum. There were no deaths. Conclusions: P-SCAD most commonly presents with ST-elevation MI and multivessel involvement within the initial 12 weeks postpartum. Clinicians need to be familiar with this etiology of PAMI to avoid delay in diagnosis and appropriate management.
Abstract 17252: Rates and Predictors of Co-Prescribing Common Interacting Cardiovascular Medications in Atrial Fibrillation Patients on Direct Oral Anticoagulants
Authors: Mohammed Shurrab, Maria Koh, Cynthia JACKEVICIUS, Feng Qiu, Karen Tu, Michael Conlon, Joseph Caswell, Peter Austin, Dennis T Ko
Journal: Circulation (2020)

Introduction: Amiodarone and diltiazem are commonly prescribed cardiovascular medications in atrial fibrillation (AF) patients who take direct oral anticoagulants (DOACs). They are known to have drug-drug interactions (DDIs) with DOACs, increasing serum levels of DOACs by 40-60%, and potentially increasing risk of bleeding. Objective: To evaluate frequency of use of amiodarone or diltiazem among continuous users of DOACs in AF patients and assess factors associated with their use. Methods: The study population included all AF patients with continuous DOAC use in Ontario, Canada, ≥66 years, from April 1 2017 to March 31 2018. We used linked databases housed at ICES, Ontario. DOAC fill dates and days supplied per prescription were used to determine treatment durations. A maximum gap of 30 days between prescriptions was allowed. Multivariable logistic regression models were used to identify predictors of prescribing amiodarone or diltiazem among AF patients on DOACs. Results: In total, 5390 AF patients, ≥66 years, with continuous DOAC use were identified. Amiodarone was co-prescribed in 343 (6.4%) patients and diltiazem was co-prescribed in 604 (11.2%) patients. The presence of percutaneous coronary intervention (PCI) or coronary artery bypass surgery (CABG) significantly increased the odds of co-prescribing amiodarone among AF DOAC patients (OR 2.52 [95% CI 1.55, 4.10], p=0.0002 and OR 5.19 [95% CI 3.46, 7.80], p= &lt;0.0001, respectively). The presence of chronic obstructive pulmonary disease was associated with significantly increased diltiazem co-prescription among AF DOAC patients (OR 1.55 [95% CI 1.28, 1.87], p=&lt;0.0001) when adjusted for important patient-level factors (Tables 1&amp;2). Conclusions: Among AF patients with continuous DOAC use, the presence of PCI or CABG was associated with increased amiodarone co-prescription. Future efforts should focus on examining the risk of bleeding in these vulnerable populations exposed to major DOAC DDIs.
Abstract MP49: Application Of A Novel Assessment Of County-level Cardiovascular Health Profile And Its Association With County-level Disease Rates
Authors: Neil P Rowen, Daniel Kim, Hannah P Rayala, Andrew H Reiter, Wayne D Rosamond
Journal: Circulation (2021)

Background: The AHA’s definition of cardiovascular health (CVH) is based on seven metrics known as Life’s Simple 7 (LS7): smoking, diet, obesity, physical inactivity, high blood cholesterol, high blood pressure, and diabetes. Although used to evaluate CVH at the national and individual level, its use as a local county-level measure of CVH has not yet been studied. Our objective was to create a modification of LS7 using publicly available data to estimate county-level CVH and to determine its association with CVH outcomes in all 100 counties of North Carolina (NC). Methods and Results: Using data on all the LS7 metrics collected by the CDC, USDA, BRFSS, and Community Health Assessments, we created a Modified LS7 scoring system, calculated scores for all 100 counties in NC, and created a regression model that predicts county-level hospital discharge rates for diseases and disorders of the circulatory system (Figure 1). Modified LS7 scores ranged from 60.8 to 80.6 (median = 73.1, SD = 3.9). Hospital discharge rates per 100,000 population ranged from 753.4 to 2223.4 (median = 1345.6, SD = 328.7). We found a negative correlation (R-squared = 0.610) between Modified LS7 scores and county-level hospital discharge rates. Counties in the mountain and piedmont regions had significantly higher mean Modified LS7 scores (74.3, 95% CI: 73.5-75.2; 73.9, 95% CI: 72.8-75.0) and lower mean discharge rates (1167.1, 95% CI: 1074.7-1259.5; 1273.9, 95% CI: 1181.4-1366.2) than counties in the coastal plains region (70.7, 95% CI: 69.4-72.0; 1612.3, 95% CI: 1518.5-1706.1). Studentized residuals and leverage points were used to identify five low performing counties and two high performing counties of interest for further analyses. Conclusions: The coastal region of NC was found to have significantly higher CVH risk and poorer CVH outcomes compared to the piedmont and mountain regions. The Modified LS7 model provides a novel approach to examine county-level variation in CVH that had previously only been reported at the national, state or individual level.
TIPS for Adults Without Cirrhosis With Chronic Mesenteric Venous Thrombosis and EHPVO Refractory to Standard‐of‐Care Therapy
Authors: Gabriel M. Knight, Jeffrey Clark, Justin R. Boike, Haripriya Maddur, Daniel R. Ganger, Abhinav Talwar, Ahsun Riaz, Kush Desai, Samdeep Mouli, Elias Hohlastos, Juan‐Carlos Garcia Pagan, Ahmed Gabr, Brady Stein, Robert Lewandowski, Bartley Thornburg, Riad Salem
Journal: Hepatology (2021)

Extrahepatic portal vein occlusion (EHPVO) from portal vein thrombosis is a rare condition associated with substantial morbidity and mortality. The purpose of this study is to investigate the efficacy of transjugular intrahepatic portosystemic shunts (TIPS) for the treatment of chronic EHPVO, cavernomatosis, and mesenteric venous thrombosis in adults without cirrhosis who are refractory to standard-of-care therapy.Thirty-nine patients with chronic EHPVO received TIPS. Laboratory parameters and follow-up were assessed at 1, 3, 6, 12, and 24 months, and every 6 months thereafter. Two hepatologists adjudicated symptom improvement attributable to mesenteric thrombosis and EHPVO before/after TIPS. Kaplan-Meier was used to assess primary and overall TIPS patency, assessing procedural success. Adverse events, radiation exposure, hospital length-of-stay and patency were recorded. Cavernoma was present in 100%, with TIPS being successful in all cases using splenic, mesenteric, and transhepatic approaches. Symptom improvement was noted in 26 of 30 (87%) at 6-month follow-up. Twelve patients (31%) experienced TIPS thrombosis. There were no significant long-term laboratory adverse events or deaths. At 36 months, freedom from primary TIPS thrombosis was 63%; following secondary interventions, overall patency was increased to 81%.TIPS in chronic, noncirrhotic EHPVO with cavernomas and mesenteric venous thrombosis is technically feasible and does not adversely affect liver function. Most patients demonstrate subjective and objective benefit from TIPS. Improvement in patency rates are needed with proper timing of adjuvant anticoagulation.
Abstract 14542: Intracardiac Echocardiography Use During Catheter Ablation for Ventricular Tachycardia: Is There a Difference in Outcome?
Authors: Michael Field, Laura Goldstein, Stephanie Lee, Iftekhar Kalsekar, Charlene Wong, Rahul Khanna, Matthew R Reynolds, Jeffrey Winterfield
Journal: Circulation (2019)

Introduction: By providing real-time monitoring of catheter-tissue interface and complications, intracardiac echocardiography (ICE) use during catheter ablation procedures for ventricular tachycard...
Severity of gastric intestinal metaplasia predicts the risk of gastric cancer: a prospective multicentre cohort study (GCEP)
Authors: Jonathan W J Lee, Feng Zhu, Supriya Srivastava, Stephen KK Tsao, Christopher Khor, Khek Yu Ho, Kwong Ming Fock, Wee Chian Lim, Tiing Leong Ang, Wan Cheng Chow, Jimmy Bok Yan So, Calvin J Koh, Shijia Joy Chua, Andrew S Y Wong, Jaideepraj Rao, Lee Guan Lim, Khoon Lin Ling, Chung-King Chia, Choon Jin Ooi, Andrea Rajnakova, Wai Ming Yap, Manuel Salto-Tellez, Bow Ho, Richie Soong, Kee Seng Chia, Yik Ying Teo, Ming Teh, Khay-Guan Yeoh
Journal: Gut (2021)

Objective To investigate the incidence of gastric cancer (GC) attributed to gastric intestinal metaplasia (IM), and validate the Operative Link on Gastric Intestinal Metaplasia (OLGIM) for targeted endoscopic surveillance in regions with low-intermediate incidence of GC. Methods A prospective, longitudinal and multicentre study was carried out in Singapore. The study participants comprised 2980 patients undergoing screening gastroscopy with standardised gastric mucosal sampling, from January 2004 and December 2010, with scheduled surveillance endoscopies at year 3 and 5. Participants were also matched against the National Registry of Diseases Office for missed diagnoses of early gastric neoplasia (EGN). Results There were 21 participants diagnosed with EGN. IM was a significant risk factor for EGN (adjusted-HR 5.36; 95% CI 1.51 to 19.0; p&lt;0.01). The age-adjusted EGN incidence rates for patients with and without IM were 133.9 and 12.5 per 100 000 person-years. Participants with OLGIM stages III–IV were at greatest risk (adjusted-HR 20.7; 95% CI 5.04 to 85.6; p&lt;0.01). More than half of the EGNs (n=4/7) attributed to baseline OLGIM III–IV developed within 2 years (range: 12.7–44.8 months). Serum trefoil factor 3 distinguishes (Area Under the Receiver Operating Characteristics 0.749) patients with OLGIM III–IV if they are negative for H. pylori . Participants with OLGIM II were also at significant risk of EGN (adjusted-HR 7.34; 95% CI 1.60 to 33.7; p=0.02). A significant smoking history further increases the risk of EGN among patients with OLGIM stages II–IV. Conclusions We suggest a risk-stratified approach and recommend that high-risk patients (OLGIM III–IV) have endoscopic surveillance in 2 years, intermediate-risk patients (OLGIM II) in 5 years.
Abstract 16527: Peri-Procedural and 45-Day Outcomes in the Roll-In Cohort of the Amplatzer Amulet Ide Trial of Left Atrial Appendage Occlusion
Authors: Rakesh Gopinathannair, Scott M Koerber, Krishna Akella, Dhanunjaya Lakkireddy
Journal: Circulation (2020)

Background: The Amulet IDE trial is an ongoing, randomized, worldwide trial, enrolled but following patients with non-valvular atrial fibrillation (AF) at high risk of stroke. The study is comparing the safety and effectiveness of the Amplatzer™ Amulet™ left atrial appendage (LAA) Occluder to the Watchman device. At US sites, the implanting physicians only had experience with the Watchman device; therefore, up to three roll-in subjects with Amplatzer Amulet device implantation were permitted prior to randomization. The purpose of this analysis is to describe the peri-procedural outcomes for the roll-in cohort. Methods: Roll-in subjects met the same eligibility criteria and have the same data collection requirements as randomized subjects. Adverse events were adjudicated by an independent clinical events committee and LAA occlusion was assessed by an independent core laboratory based on the 45-day TEE. Major adverse events included all cause death, ischemic stroke, systemic embolism or device-/procedure-related events requiring open cardiac surgery or major endovascular intervention within 7 days post implant or hospital discharge, whichever is later. Results: From August 2016 to November 2018, 201 patients with non-valvular AF at high risk of stroke and bleeding were enrolled at 82 sites as roll-in subjects. Mean age was 74.2 ± 7.5 years and 62% of subjects were male. The Amplatzer Amulet device was successfully deployed in 99% of subjects. Major adverse events within 7 days or hospital discharge occurred in 2.5% of patients and included death (n=3), ischemic stroke (n=1) and vascular access site bleeding (n=1). The majority (79%) of patients were discharged on antiplatelet therapy only or no anti-thrombotic medication. TEE follow-up at the 45-day visit revealed adequate (≤ 5 mm jet) occlusion of the appendage in 98.9% (178/180) of patients. Device-related thrombus (DRT) was identified by the core laboratory in 6 patients (3%); no patient experienced a thrombo-embolic event. Conclusions: In the roll-in cohort, with implanting physicians having no prior experience using the Amplatzer™ Amulet™ device, there was a low rate of procedural complications and high rates of both implant success and adequate LAA sealing at follow up.
98P Final results from AVANTI, a multicentre German observational study of first-line bevacizumab (BEV) + chemotherapy (CT) in &gt;2000 patients (pts) with advanced breast cancer (aBC)
Authors: V. Mueller, M. Ruhnke, O. Hoffmann, A. Grafe, O. Tomé, W. Fett, H-R. Bruch, A-K. Sommer, A. Schneeweiss
Journal: Annals of Oncology (2021)
70P Neoadjuvant chemotherapy in breast cancer in the last 2 decades: Are we improving survival? Retrospective analysis in a single institution
Authors: J. Ponce, S. Delgado, H. Ballester, T. Martín, G. Peiro, F. Aranda, M. Niveiro, Y. Montoyo, N. Gómez, J. Sánchez, A. Rodríguez-Lescure, D. Parra, L. Gomez, I. Lozano, B. Massuti
Journal: Annals of Oncology (2021)
Kidney Function and Outcomes in Patients Hospitalized With Heart Failure
Authors: Ravi B Patel, Gregg C Fonarow, Stephen J Greene, Shuaiqi Zhang, Brooke Alhanti, Adam D DeVore, Javed Butler, Paul A Heidenreich, Joanna C Huang, Michelle M Kittleson, Karen E Joynt Maddox, James J McDermott, Anjali Tiku Owens, Pamela N Peterson, Scott D Solomon, Orly Vardeny, Clyde W Yancy, Muthiah Vaduganathan
Journal: Journal of the American College of Cardiology (2021)
Long-read cDNA sequencing identifies functional pseudogenes in the human transcriptome
Authors: Robin-Lee Troskie, Yohaann Jafrani, Tim R. Mercer, Adam D. Ewing, Geoffrey J. Faulkner, Seth W. Cheetham
Journal: Genome biology (2021)

Abstract Pseudogenes are gene copies presumed to mainly be functionless relics of evolution due to acquired deleterious mutations or transcriptional silencing. Using deep full-length PacBio cDNA sequencing of normal human tissues and cancer cell lines, we identify here hundreds of novel transcribed pseudogenes expressed in tissue-specific patterns. Some pseudogene transcripts have intact open reading frames and are translated in cultured cells, representing unannotated protein-coding genes. To assess the biological impact of noncoding pseudogenes, we CRISPR-Cas9 delete the nucleus-enriched pseudogene PDCL3P4 and observe hundreds of perturbed genes. This study highlights pseudogenes as a complex and dynamic component of the human transcriptional landscape.
Seclusion and restraint and prediction of violence
Authors: Paul Phillips, Suhayl J. Nasr
Journal: American Journal of Psychiatry (1983)

The authors studied the use of seclusion and restraint on an inpatient unit in a state psychiatric hospital. Of 69 randomly selected inpatients, 51% experienced seclusion or restraint at least once. More psychotic than nonpsychotic patients required seclusion or restraint. However, neither psychosis/nonpsychosis nor voluntary/involuntary admission status predicted the likelihood of violent threats or actions. Patients experiencing seclusion and restraint showed a nonsignificant trend toward longer mean length of stay in the hospital. The frequency of patient behavior leading to seclusion or restraint appeared to be directly related to the stimulation caused by the presence of many staff members and other patients.