Background: Transcatheter mitral valve repair (TMVR) has shown to be a safe and effective treatment option for symptomatic severe mitral regurgitation (MR) in patients who are at prohibitive surgical risk. Whether age and comorbidities impact the inpatient safety outcomes of TMVR versus surgical mitral valve repair (SMVR) is unknown.Methods: Using the national inpatient sample, patients undergoing either elective TMVR or SMVR between 2012 and 2015 were analyzed. Logistic, generalized logistic, and linear regression were used to compare inpatient complications, discharge disposition, and length of stay (LOS). Heterogeneity in the effect of TMVR versus SMVR across Charlson comorbidity index (CCI, categorized as <2 and ≥2) and age (categorized as <75 years old and ≥75 years old) were assessed for effect modification.Results: Overall, 8,716 hospitalizations were included, 7,950 (91%) SMVR and 766 (9%) TMVR. Compared with SMVR, patients undergoing TMVR were older (median age 79 vs. 62 years) and more likely to be female (45% vs. 40%) with a higher CCI score (median CCI 2 vs. 1). Despite being older with a higher comorbidity burden, patients undergoing TMVR had a lower incidence of permanent pacemaker implantation (OR 0.23, 95% CI: 0.11, 0.50), cerebrovascular accidents (OR 0.37, 95% CI: 0.15, 0.92), and major bleeding (OR 0.39, 95% CI: 0.32, 0.47). TMVR patients were also discharged 3 days earlier (CIE −3.26; 95% CI: −3.72, −2.80) and were less likely to be discharged to a skilled nursing facility (OR 0.72, 95% CI 0.55, 0.93). Additionally, the relative reduction in complications after TMVR versus SMVR was significantly higher in older (age ≥75 years) and more comorbid (CCI ≥2) patients (p for interaction <.05 for both). Conclusion:Patients treated with TMVR, as compared with SMVR, were older and had more comorbidities, but had a lower incidence of inpatient complications, shorter Abbreviations: CCI, Charlson comorbidity index; LOS, length of stay; MR, mitral regurgitation; NIS, national inpatient sample; PPM, permanent pacemaker implantation; SMVR, surgical mitral valve repair; TMVR, transcatheter mitral valve repair.Hanumantha R. Jogu and Sameer Arora have contributed equally to this article.
Background Frontal QRS-T angle reflects changes in regional action potential duration and the direction of repolarization. Although it has been suggested that abnormal ventricular repolarization predisposes to atrial arrhythmias, it is unknown whether abnormal frontal QRS-T angle is associated with an increased risk of atrial fibrillation (AF). Methods We examined the association between frontal QRS-T angle and AF in 4,282 participants (95% white; 41% male) from the Cardiovascular Health Study (CHS). QRS-T angle was computed from baseline electrocardiogram data. Abnormal QRS-T angle was defined as values greater than the sex-specific 95th percentile (men >131°; women: >104°). AF cases were identified from study electrocardiograms and from hospitalization discharge data through December 31, 2010. Cox regression was used to compute hazard ratios (HR) and 95% confidence intervals (CI) for the association between abnormal QRS-T angle and AF. Results Over a median follow-up of 12.1 years, a total of 1,276 (30%) participants developed AF. In a Cox regression model, adjusted for socio-demographics and known AF risk factors, abnormal QRS-T angle was associated with a 55% increased risk of AF (HR=1.55, 95%CI=1.23, 1.97). When QRS-T angle was examined as a continuous variable, each 10° increase was associated with a 3% increased risk of AF (HR=1.03, 95%CI=1.01, 1.05). This finding was consistent in subgroups stratified by age, sex, and race. Conclusion Our findings suggest that an abnormal frontal QRS-T angle on the electrocardiogram provides important prognostic information regarding AF risk in the elderly, and further implicate ventricular repolarization abnormalities in the pathogenesis of AF.
BackgroundEffective communication between healthcare providers and patients and their family members is an integral part of daily care and discharge planning for hospitalised patients. Several studies suggest that team-based care is associated with improved length of stay (LOS), but the data on readmissions are conflicting. Our study evaluated the impact of structured interdisciplinary bedside rounding (SIBR) on outcomes related to readmissions and LOS.MethodsThe SIBR team consisted of a physician and/or advanced practice provider, bedside nurse, pharmacist, social worker and bridge nurse navigator. Outcomes were compared in patients admitted to a hospital medicine unit using SIBR (n=1451) and a similar control unit (n=770) during the period of October 2016 to September 2017. Multivariable negative binomial regression analysis was used to compare LOS and logistic regression analysis was used to calculate 30-day and 7-day readmission in patients admitted to SIBR and control units, adjusting for covariates.ResultsPatients admitted to SIBR and control units were generally similar (p≥0.05) with respect to demographic and clinical characteristics. Unadjusted readmission rates in SIBR patients were lower than in control patients at both 30 days (16.6% vs 20.3%, p=0.03) and 7 days (6.3% vs 9.0%, p=0.02) after discharge, while LOS was similar. After adjusting for covariates, SIBR was not significantly related to the odds of 30-day readmission (OR 0.81, p=0.07) but was lower for 7-day readmission (OR 0.70, p=0.03); LOS was similar in both groups (p=0.58).ConclusionSIBR did not reduce LOS and 30-day readmissions but had a significant impact on 7-day readmissions.
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