The Area Deprivation Index (ADI), popularized by the Neighborhood Atlas, is a multifaceted proxy measure for assessing socioeconomic disadvantage that captures social risk factors that are not available in typical clinical registries and that are related to adverse health outcomes. In applying the ADI to New York State, we found that the downstate regions (New York City and its suburbs) were as deprived as or more deprived than the other regions for thirteen of the seventeen ADI variables (all but the ones measured in dollars), but the Neighborhood Atlas-computed overall ADI deprivation was much less in the downstate areas. Numerous census block groups with high home values (indicating low deprivation) accompanied by high deprivation in the other ADI variables had overall ADI scores as computed by the Neighborhood Atlas in the same or contiguous deciles as the home values. We concluded that Neighborhood Atlas-computed ADI scores for New York block groups are mainly representative of median home value. This can be especially problematic when considering quality assessment, funding, and resource allocation in regions with large variations in cost of living, and it may result in underresourcing for disadvantaged communities with high housing prices. We conclude that the Neighborhood Atlas ADI would be more accurate for comparing block groups if variables were standardized before computing the overall index.
Objective To compare outcomes in women undergoing percutaneous coronary intervention (PCI) and coronary artery bypass graft (CABG) surgery. Design This retrospective, propensity-score matched cohort study from the New York State cardiac registry (2012-2018) included all women with multivessel coronary artery disease undergoing PCI with everolimus-eluting stents (EES) and CABG surgery. The primary outcome was all-cause mortality. The key secondary outcome was major adverse cardiac events, defined as the composite of all-cause mortality, myocardial infarction, and stroke. Results PCI with EES was associated with a higher 6-year risk of mortality (25.75% vs 23.57%; adjusted hazard ratio [AHR], 1.29; 95% confidence interval [CI], 1.14-1.45). PCI also was associated with a higher rate of the composite outcome of death, myocardial infarction, and stroke (36.58% vs 32.89%; AHR, 1.28; 95% CI, 1.17-1.41), as well as myocardial infarction (14.94% vs 9.12%; AHR, 1.84; 95% CI, 1.56-2.17), but not stroke (7.07% vs 7.62%; AHR, 0.83; 95% CI, 0.67-1.03). Repeat revascularization rates also were higher for women undergoing PCI (21.53% vs 11.57%; AHR, 1.88; 95% CI, 1.63-2.17). There was no difference in mortality between the 2 interventions when PCI patients received complete revascularization or had noncomplex lesions and for women without diabetes. Conclusions For women with multivessel coronary artery disease, CABG surgery is associated with lower 6-year mortality, myocardial infarction, and repeat revascularization rates compared to PCI with EES.
The Association of Socioeconomic Factors With Outcomes for Coronary Artery Bypass SurgeryThe Annals of Thoracic SurgeryVol. 114Issue 4PreviewNumerous studies have identified the associations of socioeconomic factors with outcomes of cardiac procedures. The majority have focused on easily measured factors like sex, race, and insurance status, or on socioeconomic characteristics of patients’ 5-digit zip codes. The impact of more granular census-derived socioeconomic information on outcomes has rarely been studied. Full-Text PDF
In a recent publication in this journal, we studied the impact of the Area Deprivation Index (ADI), as represented by the Neighbourhood Atlas (NA) in a user-friendly online access mode, on percutaneous coronary intervention (PCI) outcomes.1Hannan E.L. Wu Y. Cozzens K. et al.The association of socio-economic factors with percutaneous coronary intervention outcomes.Can J Cardiol. 2022; 38: 13-22Abstract Full Text Full Text PDF PubMed Scopus (6) Google Scholar The conclusions were that patients with high ADIs (ie, patients who are more socioeconomically deprived) are more likely to experience short-term mortality and readmissions after percutaneous coronary interventions. Since the publication of that study, we have studied the NA representation of the ADI in considerably more detail.2Hannan E.L. Wu Y. Cozzens K. Anderson B. The Neighborhood Atlas Area Deprivation Index for measuring socio-economic status: an overemphasis on home value.Health Aff (Millwood). 2023; 42: 702-709Crossref PubMed Scopus (3) Google Scholar To our surprise, we found that some regions of the state (eg, boroughs of New York City) that were more socioeconomically deprived in terms of nearly all of the 17 ADI variables that represent poverty, education, housing, and employment were nonetheless assigned a total ADI value in the lowest decile (least overall deprivation).2Hannan E.L. Wu Y. Cozzens K. Anderson B. The Neighborhood Atlas Area Deprivation Index for measuring socio-economic status: an overemphasis on home value.Health Aff (Millwood). 2023; 42: 702-709Crossref PubMed Scopus (3) Google Scholar The reason for this troubling assignment were that those regions had much higher median home values than other regions, and home value was not standardised to a value between 0 and 1 before weighting it in the total ADI (confirmed by correspondence with NA staff). This inadvertent overemphasis on home value was further confirmed by noting that the correlation between median home value and the overall ADI was extremely high (0.98), whereas the correlation between the overall ADI and most of the other ADI components tended to be very low.2Hannan E.L. Wu Y. Cozzens K. Anderson B. The Neighborhood Atlas Area Deprivation Index for measuring socio-economic status: an overemphasis on home value.Health Aff (Millwood). 2023; 42: 702-709Crossref PubMed Scopus (3) Google Scholar The new study also found that there were numerous block groups in New York, California, and Vermont in which the median home value was in the least deprived (1st to 3rd) deciles and the mean decile of the other ADI variables was in the very deprived (7th to 9th) deciles, yet the overall ADI was in the 1st to 3rd decile. For example, in 63% of the block groups in New York, the decile for median home value differed from the mean decile of the other 16 ADI variables by at least 2 deciles, and in 99.9% of these block groups the overall ADI decile was closer to the median home value decile than to the mean decile of the other 16 variables.2Hannan E.L. Wu Y. Cozzens K. Anderson B. The Neighborhood Atlas Area Deprivation Index for measuring socio-economic status: an overemphasis on home value.Health Aff (Millwood). 2023; 42: 702-709Crossref PubMed Scopus (3) Google Scholar Consequently, we do not recommend using the NA ADI in its current form for purposes of risk adjustment of any health care outcomes, or for identifying regions that are most deserving of public funds based on socioeconomic deprivation. The problem with the NA could be remedied easily by standardising the ADI variables before weighting them. However, even with standardisation, a deprivation index containing median home value is not ideal, because housing costs for otherwise equivalent homes are very different in rural and large urban areas. The authors have no funding sources to declare.
BACKGROUND Numerous studies have identified the associations of socioeconomic factors with outcomes of cardiac procedures. The majority have focused on easily measured factors like sex, race, and insurance status, or on socio-economic characteristics of patients' 5-digit zip codes. The impact of more granular census-derived socioeconomic information on outcomes has rarely been studied.METHODS The independent impact of the Area Deprivation Index (ADI) on short-term mortality and readmissions was tested on patients undergoing isolated coronary artery bypass grafting (CABG) surgery in New York by using it in logistic regression models in conjunction with patient risk factors and typical disparities measures (race, ethnicity, payer). Changes in hospitals' risk-adjusted outcomes and outlier status with the addition of socioeconomic measures were also tested.RESULTS After adjusting for numerous patient characteristics, patients in the fourth and fifth highest ADI quintiles (most deprived) were more likely to experience in-hospital/30-day mortality after CABG surgery (adjusted odds ratio [AOR] 1.54, 95% confidence interval [CI] 1.08, 2.20; and AOR 1.50, 95% CI 1.02, 2.21), respectively. ADI was not associated with readmissions, but African Americans (AOR 1.49, 95% CI 1.18, 1.87), Hispanics (AOR 1.33, 95% CI 1.06, 1.65) and Medicaid patients (AOR 1.34, 95% CI 1.09, 1.64) were more likely to be readmitted.CONCLUSIONS Patients with high ADIs are more likely to experience short-term mortality after CABG surgery. African Americans, Hispanics, and Medicaid patients are more likely to experience 30-day readmissions. This information should be taken into account when monitoring patients to reduce adverse events following surgery, and more studies related to ADI are needed to fully understand its implications.(Ann Thorac Surg 2022;114:1318-26)(c) 2022 by The Society of Thoracic Surgeons
Little is known about regional differences in volume, treatment, and outcomes of STEMI patients undergoing PCI during the pandemic. The objectives of this study were to compare COVID-19 pandemic and prepandemic periods with respect to regional volumes, outcomes, and treatment of patients undergoing percutaneous coronary intervention (PCI) for ST-elevation myocardial infarction (STEMI) between January 1, 2019 and March 14, 2020 (pre-COVID period) and between March 15, 2020 and April 4, 2020 (COVID period) in 51 New York State hospitals certified to perform PCI. The hospitals were classified as being in either high-density or low-density COVID-19 counties on the basis of deaths/10,000 population. There was a decrease of 43% in procedures/week in high-density COVID-19 counties (p <0.0001) and only 4% in low-density counties (p = 0.64). There was no difference in the change in risk-adjusted in-hospital mortality rates in either type of county, but STEMI PCI patients in high-density counties had longer times from symptom onset to hospital arrival and lower cardiac arrest rates in the pandemic period. In conclusion, the decrease in STEMI PCIs during the pandemic was mainly limited to counties with a high density of COVID-19 deaths. The decrease appears to be primarily related to patients not presenting to hospitals in high-density COVID regions, rather than PCI being avoided in STEMI patients or a reduction in the incidence of STEMI. Also, high-density COVID-19 counties experienced delayed admissions and less severely ill STEMI PCI patients during the pandemic. This information can serve to focus efforts on convincing STEMI patients to seek life-saving hospital care during the pandemic.
OBJECTIVE Hybrid coronary revascularization(HCR) combines a minimally invasive surgical approach to the left anterior descending(LAD) artery with percutaneous coronary intervention(PCI) for non-LAD diseased coronary arteries. It is associated with shorter hospital lengths of stay and recovery times than conventional coronary artery bypass surgery, but there is little information comparing it to isolated PCI for multivessel disease. Our objective is to compare long-term outcomes of HCR and PCI for patients with multivessel disease.METHODS This cohort study used data from New York’s cardiac surgery and PCI registries in 2010-2016 to examine mortality and repeat revascularization rates for patients with multivessel coronary artery disease who underwent HCR and PCI. Cox proportional hazards methods were used to reduce selection bias. Patients were followed for a median of four years.RESULTS There was a total of 335 HCR patients(1.2%) and 25,557 PCI patients(98.8%) after exclusions. There was no difference in 6-year risk adjusted survival between HCR and PCI patients(83.17% vs. 81.65%, adjusted hazard ratio(aHR) = 0.90(95%CI: 0.67-1.20). However, HCR patients were more likely to be free from repeat revascularization in the LAD artery(91.13% vs.83.59%, aHR = 0.51(95% CI: 0.34-0.77)).CONCLUSIONS For patients with multi-vessel coronary artery disease, HCR is rarely performed. There are no differences in mortality rates after four years, but HCR is associated with lower repeat revascularization rates in the LAD artery, presumably due to better longevity in left arterial mammary grafts.
Background Numerous studies have identified the association of socioeconomic factors with outcomes of cardiac surgical procedures. Most have focused on easily measured demographic factors or on socioeconomic characteristics of patients' 5-digit zip codes. The impact of socioeconomic information that is derived from smaller geographic regions has rarely been studied. Methods The association of the Area Deprivation Index (ADI) with short-term mortality and readmissions was tested for patients undergoing percutaneous coronary intervention (PCI) in New York while adjusting for numerous patient risk factors, including race, ethnicity, and payer. Changes in hospitals' risk-adjusted outcomes and outlier status with the addition of socioeconomic factors were examined. Results After adjustment, patients in the 2 most deprived ADI quintiles were more likely to experience in-hospital and 30-day mortality after PCI (adjusted odds ratios [95% confidence intervals] 1.39 [1.18-1.65] and 1.24 [1.03-1.49], respectively), than patients in the first quintile (least deprived). Also, patients in the second and fifth ADI quintiles had higher 30-day readmissions rates than patients in the first quintile (1.12 [1.01-1.25] and 1.17 [1.04-1.32], respectively). Medicare patients had higher mortality and readmission rates, Hispanics had lower mortality, and Medicaid patients had higher readmission rates. Conclusions Patients with the most deprived ADIs are more likely to experience short-term mortality and readmissions after PCI. Ethnicity and payer are significantly associated with adverse outcomes even after adjusting for ADI. This information should be considered when identifying patients who are at the highest risk for adverse events after PCI and when risk-adjusting hospital outcomes and assessing quality of care.
Background: Hybrid coronary revascularization (HCR) treats multivessel coronary artery disease by combining a minimally invasive surgical approach to the left anterior descending artery with percutaneous coronary intervention for non–left anterior descending diseased coronary arteries. The objective of this study is to compare HCR and conventional coronary artery bypass graft (CABG) surgery medium-term outcomes. Methods: Data from multivessel disease patients in New York’s cardiac surgery and percutaneous coronary intervention registries in 2010 to 2016 were used to compare mortality and repeat revascularization rates for HCR and conventional CABG after using propensity matching to reduce selection bias. Results: There was a total of 303 HCR (0.80%) patients and 37 556 conventional CABG patients after exclusions. After propensity matching, the respective median follow-up times were 3.72 years and 3.76 years. There was no difference between HCR and conventional CABG in survival at 6 years (80.9% versus 85.8%%, adjusted hazard ratio, 1.44 [0.90–2.31]), but HCR had higher mortality excluding deaths during the first year (adjusted hazard ratio, 1.88 [1.10–3.23]). Conventional CABG patients were more likely to be free from repeat revascularization at 6 years than HCR patients (88.2% versus 76.6%; hazard ratio, 2.22 [1.44–3.42]). Conclusions: HCR is rarely performed for patients with multivessel coronary artery disease. HCR and conventional CABG had no different 6-year mortality rates, but HCR had higher mortality after 1 year and higher rates of subsequent revascularization that were caused by both the need for repeat revascularization in the left anterior descending artery where minimally invasive CABG was performed, and in the coronary arteries where percutaneous coronary intervention was performed. Graphic Abstract: A graphic abstract is available for this article.
Dbh is a Y-family translesion DNA polymerase from Sulfolobus acidocaldarius, an archaeal species that grows in harsh environmental conditions. Biochemically, Dbh displays a distinctive mutational profile, creating single-base deletion mutations at extraordinarily high frequencies (up to 50 %) in specific repeat sequences. In cells, however, Dbh does not appear to contribute significantly to spontaneous frameshifts in these same sequence contexts. This suggests that either the error-prone DNA synthesis activity of Dbh is reduced in vivo and/or Dbh is restricted from replicating these sequences. Here, we test the hypothesis that the propensity for Dbh to make single base deletion mutations is reduced through interaction with the S. acidocaldarius heterotrimeric sliding clamp processivity factor, PCNA-123. We first confirm that Dbh physically interacts with PCNA-123, with the interaction requiring both the PCNA-1 subunit and the C-terminal 10 amino acids of Dbh, which contain a predicted PCNA-interaction peptide (PIP) motif. This interaction stimulates the polymerase activity of Dbh, even on short, linear primer-template DNA, by increasing the rate of nucleotide incorporation. This stimulation requires an intact PCNA-123 heterotrimer and a DNA duplex length of at least 18 basepairs, the minimal length predicted from structural data to bind to both the polymerase and the clamp. Finally, we find that PCNA-123 increases the fidelity of Dbh on a single-base deletion hotspot sequence 3-fold by promoting an increase in the rate of correct, but not incorrect, nucleotide addition and propose that PCNA-123 induces Dbh to adopt a more active conformation that is less prone to creating deletions during DNA synthesis.
Background: Many studies have revealed no outcome differences among patients undergoing percutaneous coronary intervention (PCI) in hospitals with and without surgery on-site (SOS), but one earlier study found differences in target vessel PCI rates and in mortality for patients with acute myocardial infarction who did not undergo PCI. It is important to examine outcome differences between SOS and non-SOS hospitals with more contemporary data. Methods and Results: A total of 21 924 propensity-matched patients who were discharged between January 1, 2013, and November 30, 2015, who were in the New York PCI registry and other hospital databases were used to compare outcomes in hospitals with and without SOS for all patients and for patients with and without ST-segment–elevation myocardial infarction (STEMI) undergoing PCI. Also, 30-day mortality was compared for patients with STEMI regardless of whether they underwent PCI. For all patients with PCI and patients without STEMI, there were no significant differences in in-hospital/30-day mortality, 2-year mortality, or 2-year repeat target lesion PCI. For patients with STEMI, there were no significant mortality differences between patients in SOS and non-SOS hospitals. Patients with STEMI in SOS hospitals had significantly lower 2-year repeat target lesion PCI rates (adjusted hazard ratio, 0.68 [0.49–0.94]). There was no difference in the percentage of patients undergoing PCI in the 2 types of hospitals (75.7% versus 74.6%; P=0.21) or in 30-day mortality of all patients with STEMI (patients who did and did not undergo PCI, 10.86% versus 11.32%; adjusted odds ratio, 1.06 [0.88–1.29]). Conclusions: Short-term and long-term outcomes were not different in SOS and non-SOS hospitals except that 2-year repeat target lesion PCI rates were lower in SOS hospitals for patients with STEMI.
ObjectivesTo compare mortality for women and men hospitalized with ST-elevation myocardial infarction (STEMI) by age and revascularization status. BackgroundThere is little information on the mortality of men and women not undergoing revascularization, and the impact of age on relative male-female mortality needs to be revisited. Methods and resultsAn observational database of 23,809 patients with STEMI presenting at nonfederal New York State hospitals between 2013 and 2015 was used to compare risk-adjusted inhospital/30-day mortality for women and men and to explore the impact of age on those differences. Women had significantly higher mortality than men overall (adjusted odds ratio [AOR]=1.15, 95% CI [1.04, 1.28]), and among patients aged 65 and older. Women had lower revascularization rates in general (AOR=0.64 [0.59, 0.69]) and for all age groups. Among revascularized STEMI patients, women overall (AOR=1.30 [1.10, 1.53]) and over 65 had higher mortality than men. Among patients not revascularized, women between the ages of 45 and 64 had lower mortality (AOR=0.68 [0.48, 0.97]). ConclusionsWomen with STEMI, and especially older women, had higher inhospital/30-day mortality rates than their male counterparts. Women had higher mortality among revascularized patients, but not among patients who were not revascularized.
Background: Most of what is known about patients (pts) with STEMI is derived from the minority of hospitals voluntary reporting in national registries, primarily those undergoing PCI. Less is known...
The Y-family polymerases help cells tolerate DNA damage by performing translesion synthesis, yet they also can be highly error prone. One distinctive feature of the DinB class of Y-family polymerases is that they make single-base deletion errors at high frequencies in repetitive sequences, especially those that contain two or more identical pyrimidines with a 5' flanking guanosine. Intriguingly, different deletion mechanisms have been proposed, even for two archaeal DinB polymerases that share 54% sequence identity and originate from two strains of Sulfolobus. To reconcile these apparent differences, we have characterized Dpo4 from Sulfolobus solfataricus using the same biochemical and crystallographic approaches that we have used previously to characterize Dbh from Sulfolobus acidocaldarius. In contrast to previous suggestions that Dpo4 uses a deoxynucleoside triphosphate (dNTP)-stabilized misalignment mechanism when creating single-base deletions, we find that Dpo4 predominantly uses a template slippage deletion mechanism when replicating repetitive DNA sequences, as was previously shown for Dbh. Dpo4 stabilizes the skipped template base in an extrahelical conformation between the polymerase and the little-finger domains of the enzyme. This contrasts with Dbh, in which the extrahelical base is stabilized against the surface of the little-finger domain alone. Thus, despite sharing a common deletion mechanism, these closely related polymerases use different contacts with the substrate to accomplish the same result.
We have designed a laboratory curriculum using the green and red fluorescent proteins (GFP and RFP) to visualize the cloning, expression, chromatography purification, crystallization, and protease-cleavage experiments of protein science. The EGFP and DsRed monomer (mDsRed)-coding sequences were amplified by PCR and cloned into pMAL (MBP-EGFP) or pT7His (His(10) -mDsRed) prokaryotic expression vectors. Then the fluorescent proteins were expressed in Rosetta (DE3) pLysS by IPTG induction or autoinduction. We purified the fluorescent proteins by affinity chromatography (Amylose and metal ion-chelating column), anion-exchange chromatography (High Q column), size exclusive chromatography (Sephacryl S-200 column), and hydrophobic interaction chromatography (Methyl HIC column) to exhibit the protein-purification techniques. After purification, the fusion protein MBP-EGFP was cleaved by TEV protease. The recombinant mDsRed protein was crystallized by hanging drop vapor diffusion technique to show students the basic operation of crystallization. The whole procedure can be monitored real time by naked eyes when using fluorescent proteins. The demonstration of expression, purification, crystallization, and protease cleavage became much more vivid and interesting, which greatly deepened the students' understanding of modern protein-science techniques.
mBanana is a novel monomeric red fluorescent protein mutant. It was cloned and expressed in Escherichia coli with 10 histidine residues at its N-terminal. After cleavage of the His tag by TEV protease, the mBanana was further purified and crystallized by the hanging-drop vapor-diffusion technique. The crystals can diffract to 2.0A resolution and one set of completed data was collected. It showed that the orthorhombic mBanana crystal was in space group P21 with unit cell parameters (48.629, 42.667, 61.714, 90, 111.676, 90) and contained one molecule in one asymmetric unit.