C-Reactive Protein to Albumin Ratio in Patients Undergoing Transcatheter Aortic Valve Replacement

ObjectiveTo evaluate whether the serum C-reactive protein to albumin ratio (CAR) could be used for risk stratification of patients undergoing transcatheter aortic valve replacement (TAVR) for severe aortic stenosis (AS).Patients and MethodsFrailty is a predictor of poor outcomes in patients undergoing AS interventions. The CAR reflects key components of frailty (systemic inflammation and nutrition) and could potentially be implemented into assessment and management strategies for patients with AS. From March 1, 2010, through February 29, 2020, 1836 patients were prospectively enrolled in an observational TAVR database. Patients (prospective development cohort, n=763) were grouped into CAR quartiles to compare the upper quartile (CAR Q4) with the lower quartiles (CAR Q1-3). Primary end point was all-cause mortality. Results were verified in an independent retrospective cohort (n=1403).ResultsThe CAR Q4 had a higher prevalence of impaired left ventricular function, atrial fibrillation, diabetes, and cerebrovascular disease and a higher median logistic European System for Cardiac Operative Risk Evaluation (EuroSCORE) vs CAR Q1-3. After median follow-up of 15.0 months, all-cause mortality was significantly higher in CAR Q4 vs CAR Q1-3 (P<.001). In multivariable analyses, risk factors for all-cause mortality were CAR Q4 (>0.1632; hazard ratio, 1.45; 95% confidence interval, 1.05 to 2.00; P=.03), N-terminal pro–B-type natriuretic peptide Q4 (>3230 pg/mL [to convert to ng/L, multiply by 1), high-sensitivity troponin T Q4 (>0.0395 ng/mL [to convert to μg/L, multiply by 1]), above-median logistic EuroSCORE (16.1%), myocardial infarction, Acute Kidney Injury Network stage 3, and life-threatening bleeding.ConclusionElevated CAR was associated with increased risk of all-cause mortality in patients undergoing transfemoral TAVR. The CAR, a simple, objective tool to assess frailty, could be incorporated into assessing patients with AS being considered for TAVR.     

Identification of the circRNA-miRNA-mRNA regulatory network and its prognostic effect in colorectal cancer

BACKGROUNDThe high morbidity and mortality of colorectal cancer (CRC) have posed great threats to human health. Circular RNA (CircRNA) and microRNA (miRNA), acting as competing endogenous RNAs (ceRNAs), have been found to play vital roles in carcinogenesis. However, the biological function of ceRNAs in CRC pathogenesis and prognosis remains largely unexplored. AIMTo identify the CRC-specific circRNA-miRNA-mRNA regulatory network and uncover the subnetwork associated with its prognosis.METHODSCircRNAs, miRNAs and mRNAs differentially expressed (DE) in CRC tissues were selected by expression file analysis in the Gene Expression Omnibus (GEO) database, and the downstream target molecules of circRNAs and miRNAs were predicted. Then, the intersection of differentially expressed RNA molecules with the predicted targets was determined to obtain a ceRNA network. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were conducted to elucidate the possible mechanism of pathogenesis. A survival analysis using the gene profiles and clinical information in The Cancer Genome Atlas (TCGA) database was performed to identify the mRNAs associated with the clinical outcome of CRC patients and construct a prognostic subnetwork.RESULTSWe downloaded three datasets ({"type":"entrez-geo","attrs":{"text":"GSE126095","term_id":"126095"}}GSE126095, {"type":"entrez-geo","attrs":{"text":"GSE41655","term_id":"41655"}}GSE41655 and {"type":"entrez-geo","attrs":{"text":"GSE41657","term_id":"41657"}}GSE41657) of large-scale CRC samples from the GEO database. There were 55 DEcircRNAs, 114 DEmiRNAs and 267 DEmRNAs in CRC tissues compared with normal tissues. After intersecting these molecules with predicted targets, 19 circRNAs, 13 miRNAs and 28 mRNAs were chosen to develop a circRNA-miRNA-mRNA network. GO and KEGG functional enrichment analyses indicated that the retinol metabolic process, leukocyte chemotaxis, extracellular matrix remodeling, endoplasmic reticulum stress, alcohol dehydrogenase activity, gastric acid secretion, nitrogen metabolism and NOD-like receptor signaling pathway might participate in the tumorigenesis of CRC. After verifying the identified mRNA effect in the TCGA database, we finally recognized 3 mRNAs (CA2, ITLN1 and LRRC19) that were significantly associated with the overall survival of CRC patients and constructed a ceRNA subnetwork including 5 circRNAs (hsa_circ_0080210, hsa_circ_0007158, hsa_circ_0000375, hsa_circ_0018909 and hsa_circ_0011536) and 3 miRNAs (hsa-miR-601, hsa-miR-671-5p and hsa-miR-765), which could contain innovative and noninvasive indicators for the early screening and prognostic prediction of CRC.CONCLUSIONWe proposed a circRNA-miRNA-mRNA regulatory network closely associated with the progression and clinical outcome of CRC that might include promising biomarkers for carcinogenesis and therapeutic targets.     

Delivering Virtual Cancer Rehabilitation Programming During the First 90 Days of the COVID-19 Pandemic: A Multimethod Study

ObjectiveTo describe the adaptations made to implement virtual cancer rehabilitation at the onset of the coronavirus disease 2019 pandemic, as well as understand the experiences of patients and providers adapting to virtual care.DesignMultimethod study.SettingCancer center.ParticipantsA total of 1968 virtual patient visits were completed during the study period. Adult survivors of cancer (n=12) and oncology health care providers (n=12) participated in semi-structured interviews.InterventionsNot applicable.Main Outcome MeasuresFramework-driven categorization of program modifications, qualitative interviews with patients and providers, and a comparison of process outcomes with the previous 90 days of in-person care via referrals, completed visits and attendance, method of delivery, weekly capacities, and wait times.ResultsThe majority of program visits could be adapted to virtual delivery, with format, setting, and content modifications. Virtual care demonstrated an increase or maintenance in the number of completed visits by appointment type compared with in-person care, with attendance ranging from 80%-93%. For most appointment types, capacities increased, whereas wait times decreased slightly. Overall, 168 patients (11% of all assessments and follow-ups) assessed virtually were identified by providers as requiring an in-person appointment because of reassessment of musculoskeletal and/or neurologic impairment (n=109, 65%) and lymphedema (n=59, 35%). The interviews (n=24) revealed that virtual care was an acceptable alternative in some circumstances, with the ability to (1) increase access to care; (2) provide a sense of reassurance during a time of isolation; and (3) provide confidence in learning skills to self-manage impairments.ConclusionsMany appointments can be successfully adapted to virtual formats to deliver cancer rehabilitation programming. Based on our findings, we provide practical recommendations that can be implemented by providers and programs to facilitate the adoption and delivery of virtual care.     

Entrapment of a Pacing Lead within a Chiari Network: Utility of Intracardiac Echo and a Laser Sheath

Although rare, Chiari networks are elaborate embryological remnants that can pose distinct challenges for catheter and pacing lead manipulation within the right atrium. Device entrapment may require open thoracotomy for removal, with significant morbidity. We report an unusual case of pacing lead entanglement within this structure, followed by prompt intracardiac echocardiographic identification and laser sheath removal.