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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 25 of 452 Research Studies DisplayedBauer TM, Yaser JM, Daramola T
Cardiac rehabilitation reduces two-year mortality after coronary artery bypass grafting.
This study analyzed the outcome of cardiac rehabilitation (CR) use for patients who have undergone coronary revascularization procedures. The study looked at Medicare fee-for-service claims linked to surgical data patients discharged alive following isolated coronary artery bypass grafting (CABG) from January 2015 to October 2019. A total of 3,848/6,412 (60.0%) of patients were enrolled in CR for an average of 23.2 sessions with 770/6,412 (12.0%) completing all recommended 36 sessions. Predictors of post-discharge CR use included increasing age, discharge to home (vs extended care facility), and shorter length of stay. Unadjusted and inverse probability treatment weighting (IPTW) analyses showed significant reduction in 2-year mortality in CR users as compared to CR non-users (unadjusted 9.4%).
AHRQ-funded; HS027830.
Citation: Bauer TM, Yaser JM, Daramola T .
Cardiac rehabilitation reduces two-year mortality after coronary artery bypass grafting.
Ann Thorac Surg 2023 Nov; 116(5):1099-105. doi: 10.1016/j.athoracsur.2023.05.044..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Surgery, Mortality, Outcomes
Thompson MP, Hou H, Stewart JW
Relationship between community-level distress and cardiac rehabilitation participation, facility access, and clinical outcomes after inpatient coronary revascularization.
The purpose of this retrospective cohort study was to assess the association between community-level distress and cardiac rehabilitation (CR) participation, access to CR facilities, and clinical outcomes. The study included a 100% sample of Medicare beneficiaries undergoing inpatient coronary revascularization between July 2016 and December 2018. Community-level distress was defined by the researchers as using the Distressed Community Index quintile at the beneficiary zip code level, with the first and fifth quintiles representing prosperous and distressed communities, respectively. The study found that any CR use was lower for beneficiaries in distressed compared with prosperous communities (26.0% versus 46.1%), which was significant after multivariable adjustment. 23.7% of beneficiaries had a CR facility within their zip code, which increased from 16.3% in prosperous communities to 26.6% in distressed communities. Any CR utilization was related with absolute reductions in mortality, all-cause hospitalization, and acute myocardial infarction hospitalization, which were comparable across each Distressed Community Index quintiles.
AHRQ-funded; HS027830.
Citation: Thompson MP, Hou H, Stewart JW .
Relationship between community-level distress and cardiac rehabilitation participation, facility access, and clinical outcomes after inpatient coronary revascularization.
Circ Cardiovasc Qual Outcomes 2023 Nov; 16(11):e010148. doi: 10.1161/circoutcomes.123.010148..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Outcomes
Shields AD, Vidosh J, Thomson BA
Validation of a simulation-based resuscitation curriculum for maternal cardiac arrest.
The purpose of this study was to evaluate the knowledge, skills, and self-efficacy of health care participants completing a simulation-based blended learning training curriculum on managing maternal medical emergencies and maternal cardiac arrest. The study included a formative assessment of the Obstetric Life Support curriculum. The training consisted of self-guided pre-course work and an instructor-led simulation course using a customized low-fidelity simulator. Eighty-five participants consented to participation in the training (out of 88 invited); 77 participants completed the training over eight sessions. The study found that at baseline, less than 50% of participants were able to achieve a passing score on the cognitive assessment. After the course, mean cognitive assessment scores improved by 13 points, from 69.4% at baseline to 82.4% after the course. The researchers observed significant improvements in participant self-efficacy, and 92.6% of participants agreed or strongly agreed that the course met its educational objectives.
AHRQ-funded; HS026169.
Citation: Shields AD, Vidosh J, Thomson BA .
Validation of a simulation-based resuscitation curriculum for maternal cardiac arrest.
Obstet Gynecol 2023 Nov 1; 142(5):1189-98. doi: 10.1097/aog.0000000000005349..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Maternal Care, Simulation, Training, Education: Continuing Medical Education, Women
Thompson MP, Stewart JW, Hou H
Determinants and outcomes associated with skilled nursing facility use after coronary artery bypass grafting: a statewide experience.
The purpose of this study was to assess determinants and outcomes related with Skilled nursing facility (SNF) use after isolated coronary artery bypass grafting. The study sample included 8,614 patients, with an average age of 73.3 years. A skilled nursing facility (SNF) was used by 22.3% of patients within 90 days of discharge and ranged from 3.2% to 58.3% across the 33 hospitals. Patients utilizing SNFs had a greater likelihood of being female, older, non-White, with greater comorbidities, worse cardiovascular function, a perioperative morbidity, and longer hospital lengths of stay. Outcomes were significantly worse for users of SNFs, including higher rates of 90-day readmissions and ED visits and lower use of home health and rehabilitation services. Compared with non-SNF users, users of SNFs had a greater risk-adjusted hazard of mortality and had 2.7-percentage point greater 5-year mortality rate in a propensity-matched cohort of patients.
AHRQ-funded; HS027830.
Citation: Thompson MP, Stewart JW, Hou H .
Determinants and outcomes associated with skilled nursing facility use after coronary artery bypass grafting: a statewide experience.
Circ Cardiovasc Qual Outcomes 2023 Oct; 16(10):e009639. doi: 10.1161/circoutcomes.122.009639..
Keywords: Elderly, Nursing Homes, Heart Disease and Health, Cardiovascular Conditions, Medicare, Surgery
Aklilu AM, Kumar S, Yamamoto Y
Outcomes associated with sodium-glucose cotransporter-2 inhibitor use in acute heart failure hospitalizations complicated by AKI.
This retrospective study examined the association of sodium-glucose cotransporter-2 inhibitor (SGLT2i) use with patients who have KDIGO-defined acute kidney injury (AKI) during acute heart failure (AHF) hospitalizations and their kidney function recovery at 14 days and 30 days using time-varying multivariable Cox-regression analyses. The study looked at 3305 adults hospitalized across 5 Yale New Haven Health Systems between January 2020 and May 2022 with AHF complicated by KDIGO-defined AKI. Of those individuals hospitalized with AHF and AKI, 356 received SGLT2i following AKI diagnosis either as initiation or continuation. The rate of renal recovery was not significantly different among those exposed and unexposed to SGLT2i following AKI (adjusted HR 0.94). SGLT2i exposure was associated with lower risk of 30-day mortality (adjusted HR 0.45). Rates of renal recovery were similar between the exposed and nonexposed cohorts regardless of the proximity of SGLT2i exposure to AKI diagnosis.
AHRQ-funded; HS027626.
Citation: Aklilu AM, Kumar S, Yamamoto Y .
Outcomes associated with sodium-glucose cotransporter-2 inhibitor use in acute heart failure hospitalizations complicated by AKI.
Kidney360 2023 Oct; 4(10):1371-81. doi: 10.34067/kid.0000000000000250..
Keywords: Kidney Disease and Health, Heart Disease and Health, Cardiovascular Conditions, Inpatient Care, Medication, Outcomes
Krefman AE, Ciolino Jd, Kan AK
Rationale and design for Healthy Hearts for Michigan (HH4M): a pragmatic single-arm hybrid effectiveness-implementation study.
The objective of the Healthy Hearts for Michigan (HH4M) study is to promote hypertension management and smoking cessation through practice facilitation and quality improvement efforts. This three-year research program evaluates rural and medically underserved primary care practices’ ability to implement the quality improvement model and tests whether the model improves blood pressure control and tobacco use screening and cessation. Primary care practices in rural and underserved areas of Michigan were recruited to join HH4M. HH4M is part of the multi-state EvidenceNOW: Building State Capacity initiative to provide external support to primary care practices to improve care delivery.
AHRQ-funded; HS027954.
Citation: Krefman AE, Ciolino Jd, Kan AK .
Rationale and design for Healthy Hearts for Michigan (HH4M): a pragmatic single-arm hybrid effectiveness-implementation study.
Contemp Clin Trials Commun 2023 Oct; 35:101199. doi: 10.1016/j.conctc.2023.101199..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Evidence-Based Practice, Patient-Centered Outcomes Research, Primary Care
Movahedi F, Kanwar MK, Antaki JF
Timelines of adverse event journeys of LVAD patients.
The objective of this study was to investigate the timelines of adverse events (AEs) in the INTERMACS database to obtain insights into the "AE journeys" of left ventricular assist device (LVAD) patients. The characteristics of the timelines were investigated via six descriptive research questions. The analysis revealed time-related characteristics and patterns of the AE journey after LVAD, including the most common time of occurrences, duration, and time intervals between AEs. The authors concluded that the INTERMACS Event dataset is a valuable resource for research about the timeline of AE journeys of LVAD patients and noted that future studies should consider the time-related characteristics of the dataset to choose an appropriate scope of time and time granularity.
AHRQ-funded; HS027784.
Citation: Movahedi F, Kanwar MK, Antaki JF .
Timelines of adverse event journeys of LVAD patients.
Artif Organs 2023 Oct; 47(10):1604-12. doi: 10.1111/aor.14596..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Adverse Events, Medical Devices
Franklin MK, Karpyn A, Christofferson J
Barriers and facilitators to discussing parent mental health within child health care: perspectives of parents raising a child with congenital heart disease.
This study’s objective was to identify barriers and facilitators to the discussion of parental mental health within child health care for children with congenital heart disease (CHD). Participants were parents of young children with CHD who received care across 40 hospitals in the US. They responded to questions about discussing their mental health with their child's health care providers and described multiple barriers including perceived expectation to "stay strong," and fear of negative judgment or repercussions. Facilitators included care team ability to provide support and personal connections with health care providers. The authors concluded that is important that health care providers normalize the impact of child illness on the family and create an environment in which parents feel comfortable discussing mental health challenges.
AHRQ-funded; HS026393.
Citation: Franklin MK, Karpyn A, Christofferson J .
Barriers and facilitators to discussing parent mental health within child health care: perspectives of parents raising a child with congenital heart disease.
J Child Health Care 2023 Sep; 27(3):360-73. doi: 10.1177/13674935211058010..
Keywords: Children/Adolescents, Behavioral Health, Heart Disease and Health, Cardiovascular Conditions
Zhou S, Yang G, Hou H
Infections following left ventricular assist device implantation and 1-year health-related quality of life.
This study examined number and types of infection following left ventricular assist device (LVAD) implantation and its adverse effects on patient-reported health-related quality of life (HRQOL). Participants were patients from the Society of Thoracic Surgeons' Interagency Registry for Mechanically Assisted Circulatory Support who had received a primary LVAD. The results showed that each additional infection within the first post-implantation year was associated with an incremental negative effect on patient survival free of impaired HRQOL.
AHRQ-funded; HS026003.
Citation: Zhou S, Yang G, Hou H .
Infections following left ventricular assist device implantation and 1-year health-related quality of life.
J Heart Lung Transplant 2023 Sep; 42(9):1307-15. doi: 10.1016/j.healun.2023.05.006..
Keywords: Heart Disease and Health, Medical Devices, Cardiovascular Conditions, Quality of Care
Troy AL, Herzig SJ, Trivedi S
Initiation of oral anticoagulation in US older adults newly diagnosed with atrial fibrillation during hospitalization.
This study investigated prevalence of oral anticoagulant initiation for newly diagnosed US older adults with atrial fibrillation within 7 days of hospital discharge. The authors used a 20% national sample of Medicare fee-for-service beneficiaries, identifying patients aged 65 years or older newly diagnosed with atrial fibrillation while hospitalized in 2016. Among 38,379 older adults newly diagnosed with atrial fibrillation while hospitalized (mean age 78.2; 51.8% female; 83.3% white), 36,633 (95.4%) had an indication for anticoagulation and 24.6% (9011) of those initiated an oral anticoagulant following discharge. Higher CHA(2) DS(2) -VASc score was associated with a small increase in oral anticoagulant initiation (predicted probability 20.5% for scores <2 and 24.9% for ≥4). Elevated HAS-BLED score was associated with a small decrease in probability of anticoagulant initiation (25.4% for score <2 and 23.1% for ≥3). Frailty was associated with decreased likelihood of oral anticoagulant initiation (24.7% for non-frail and 18.1% for moderately-severely frail). Anticoagulant initiation varied by primary reason for hospitalization, with predicted probability highest among patients with a primary diagnosis of atrial fibrillation (46.1%) and lowest among those with non-cardiovascular conditions (13.8%) and bleeds (3.6%).
AHRQ-funded; HS026215.
Citation: Troy AL, Herzig SJ, Trivedi S .
Initiation of oral anticoagulation in US older adults newly diagnosed with atrial fibrillation during hospitalization.
J Am Geriatr Soc 2023 Sep; 71(9):2748-58. doi: 10.1111/jgs.18375..
Keywords: Elderly, Blood Thinners, Medication, Heart Disease and Health, Cardiovascular Conditions, Stroke
Fuery MA, Kadhim B, Samsky MD
Electronic health record embedded strategies for improving care of patients with heart failure.
This article reviews recent findings from randomized clinical trials examining the impact of electronic health record (HER) alerts (called nudges) on quality of care for heart failure patients. These clinical trials demonstrated that some EHR alerts can improve care for heart failure patients. The trials described utilized default options, involved clinicians in the alert design process, provided actionable recommendations, and aimed to minimize disruptions to typical workflow.
AHRQ-funded; HS027626.
Citation: Fuery MA, Kadhim B, Samsky MD .
Electronic health record embedded strategies for improving care of patients with heart failure.
Curr Heart Fail Rep 2023 Aug; 20(4):280-86. doi: 10.1007/s11897-023-00614-0..
Keywords: Electronic Health Records (EHRs), Health Information Technology (HIT), Heart Disease and Health, Cardiovascular Conditions, Chronic Conditions
Niederdeppe J, Avery RJ, Liu J
Is exposure to pharmaceutical direct-to-consumer advertising for heart disease and diabetes associated with physical activity and dietary behavior?
This study examined associations between estimated exposure to direct consumer-to-advertising (DTCA) for drugs focused on heart disease/cholesterol and diabetes and self-reported exercise and consumption of a variety of unhealthy foods (candy, sugary drinks, alcohol, and fast food). The authors estimated exposure to DTCA by combining data from Kantar Media Intelligence (Kantar) on televised pharmaceutical DTCA airings in the U.S. from January 2003 to August 2016 (n = 7,696,851 airings) with thirteen years of data from the Simmons National Consumer Survey (Simmons), a mailed survey on television viewing patterns. They estimated associations between exposure to advertising (both overall and for advertisements with specific content) and self-reported physical activity and dietary behavior using Simmons data from January 2004 to December 2016 (n = 288,483 respondents from n = 157,621 unique households in the U.S.). They found that higher estimated exposure to DTCA for heart disease and diabetes drugs were not consistently associated with meaningful differences in the frequency of engaging in regular physical activity. However, greater estimated exposure to DTCA for both diseases were linked to small but consistently higher volume of consumption of candy, sugar-sweetened beverages, alcohol, and fast food.
AHRQ-funded; HS025983.
Citation: Niederdeppe J, Avery RJ, Liu J .
Is exposure to pharmaceutical direct-to-consumer advertising for heart disease and diabetes associated with physical activity and dietary behavior?
Soc Sci Med 2023 Aug; 330:116062. doi: 10.1016/j.socscimed.2023.116062..
Keywords: Communication, Diabetes, Heart Disease and Health, Medication
Zhou S, Yang G, Zhang M
Mortality following durable left ventricular assist device implantation by timing and type of first infection.
Researchers examined the relationship between timing and type of first infection regarding mortality following left ventricular assist device implantation. The study cohort included nearly 13,000 Society of Thoracic Surgeons Interagency Registry for Mechanically Assisted Circulatory Support patients at 166 centers. The results showed that patients with any post-implantation infection had an increased risk of death; ventricular assist device-related infections and infections occurring in the intermediate interval (91-180 days after implantation) were associated with the largest increase in risk. The researchers recommended that infection prevention strategies should target non-ventricular assist device infections in the first 90 days, then shift to surveillance/prevention of driveline infections after 90 days.
AHRQ-funded; HS026003.
Citation: Zhou S, Yang G, Zhang M .
Mortality following durable left ventricular assist device implantation by timing and type of first infection.
J Thorac Cardiovasc Surg 2023 Aug; 166(2):570-79.e4. doi: 10.1016/j.jtcvs.2021.10.056..
Keywords: Mortality, Cardiovascular Conditions, Medical Devices, Heart Disease and Health
Montembeau SC, Merchant FM, Speight C
Patients' perspectives regarding generator exchanges of implantable cardioverter defibrillators.
This study explored how patients make implantable cardioverter defibrillator (ICD) generator exchange decisions. Fifty patients from Emory Healthcare with primary prevention ICDs implanted from 2013 to 2021 completed in-depth interviews exploring perspectives regarding generator exchanges. Patients were presented standard-gamble type hypothetical scenarios where their ICD battery was depleted but their 5-year risk of sudden cardiac death at that time varied (10%, 5%, and 1%). Among these patients, 18 had a prior generator exchange, 16 had received ICD therapy, and 17 had improved left ventricular ejection fraction. As sudden cardiac death risk decreased from 10% to 5% to 1%, the number of participants willing to undergo a generator exchange decreased from 48 to 42 to 33. Doctor recommendations were also likely to substantially impact patients’ decision making. Therapeutic inertia and common misconceptions about ICD therapy represented substantive barriers to effective shared decision-making.
AHRQ-funded; HS028558.
Citation: Montembeau SC, Merchant FM, Speight C .
Patients' perspectives regarding generator exchanges of implantable cardioverter defibrillators.
Circ Cardiovasc Qual Outcomes 2023 Aug; 16(8):509-18. doi: 10.1161/circoutcomes.122.009827..
Keywords: Medical Devices, Heart Disease and Health, Cardiovascular Conditions
Derington CG, Goodrich GK, Xu S
Association of direct oral anticoagulation management strategies with clinical outcomes for adults with atrial fibrillation.
This study investigated the impact of an anticoagulation management service (AMS) on clinical outcomes of adults with atrial fibrillation (AF). This retrospective cohort study was conducted in 3 Kaiser Permanente regions, with each region taking a slightly different approach to direct oral anticoagulant (DOAC) care. These approaches included (1) usual care (UC) by the prescribing clinician, (2) UC plus an automated population management tool (PMT), or (3) pharmacist-managed AMS care. The study included 44,746 adults with a diagnosis of AF who initiated DOAC or warfarin between August 2016 and January 1, 2020, 6182 in the UC model, 33,624 in the UC plus PMT care model, and 4939 in the AMS care model. Baseline characteristics (mean age, 73.1 years, 56.1% male, 67.2% non-Hispanic White, median CHA2DS2-VASc [congestive heart failure, hypertension, age ≥75 years, diabetes, stroke, vascular disease, age 65-74 years, female sex] score of 3 [IQR, 2-5]) were well balanced after inverse probability of treatment weighting (IPTW). The cohort was followed over a median of 2 years, and patients who received the UC plus PMT or AMS care model did not have significantly better outcomes than those who received only UC.
AHRQ-funded; HS026156.
Citation: Derington CG, Goodrich GK, Xu S .
Association of direct oral anticoagulation management strategies with clinical outcomes for adults with atrial fibrillation.
JAMA Netw Open 2023 Jul; 6(7):e2321971. doi: 10.1001/jamanetworkopen.2023.21971..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Blood Thinners, Medication, Outcomes, Stroke
Wang Y, Eldridge N, Metersky ML
AHRQ Author: Eldridge N and Rodrick D
Relationship between in-hospital adverse events and hospital performance on 30-day all-cause mortality and readmission for patients with heart failure.
Researchers sought to evaluate the association between hospital performance on mortality and readmission with hospital performance on safety adverse event rates. Their cross-sectional study linked patient-level adverse events data from the Medicare Patient Safety Monitoring System to hospital-level, heart failure (HF)-specific, 30-day, all-cause mortality and readmissions data from CMS. The study included data on over 39,000 patients with HF from over 3000 hospitals. Patients admitted with HF to hospitals with high 30-day, all-cause mortality and readmission rates had a higher risk of in-hospital adverse events. The researchers concluded that there might be common quality issues among the measure concepts in these hospitals that produce poor performance for patients with HF.
AHRQ-funded; AHRQ-authored; 290201800005C.
Citation: Wang Y, Eldridge N, Metersky ML .
Relationship between in-hospital adverse events and hospital performance on 30-day all-cause mortality and readmission for patients with heart failure.
Circ Cardiovasc Qual Outcomes 2023 Jul; 16(7):e009573. doi: 10.1161/circoutcomes.122.009573..
Keywords: Hospitals, Hospital Readmissions, Heart Disease and Health, Cardiovascular Conditions, Adverse Events, Provider Performance
Brown-Johnson C, Calma J, Amano A
Evaluating the implementation of patient-reported outcomes in heart failure clinic: a qualitative assessment.
This study evaluated clinician perceptions of the Kansas City Cardiomyopathy Questionnaire-12 (KCCQ-12), a patient reported outcome (PRO) survey that captures symptom frequency, symptom burden, physical limitations, social limitations, and quality of life. The authors conducted interviews with cardiologists from 4 institutions across the United States and Canada (n=16) and observed clinic visits at 1 institution in Northern California (n=5). They conducted 2 rounds of interviews and did a qualitative analysis on (1) rapid analysis constructed around major themes related to the aims of the study and (2) content analysis with codes derived from the rapid analysis and implementation science. Most cardiologists reported the KCCQ-12 was acceptable, appropriate, and useful in clinical care. The survey was found to improve the consistency of patient history taking, focus patient-clinician conversations, collect a more accurate account of patient quality of life, track trends in patient well-being over time, and refine clinical decision-making.
AHRQ-funded; HS026128.
Citation: Brown-Johnson C, Calma J, Amano A .
Evaluating the implementation of patient-reported outcomes in heart failure clinic: a qualitative assessment.
Circ Cardiovasc Qual Outcomes 2023 May; 16(5):e009677. doi: 10.1161/circoutcomes.122.009677..
Keywords: Patient-Centered Outcomes Research, Outcomes, Heart Disease and Health, Cardiovascular Conditions
Kimchi A, Aronow HU, Ni YM
Postdischarge noninvasive telemonitoring and nurse telephone coaching improve outcomes in heart failure patients with high burden of comorbidity.
The purpose of this study was to explore how comorbidity burden modulates the effectiveness of Noninvasive telemonitoring and nurse telephone coaching (NTM-NTC) and identify patients with HF who may benefit from postdischarge NTM-NTC based on their burden of comorbidity. METHODS AND RESULTS: In the Better Effectiveness After Transition - Heart Failure trial, patients hospitalized for acute decompensated HF were randomized to postdischarge NTM-NTC or usual care. In this secondary analysis of 1313 patients with complete data, comorbidity burden was assessed by scoring complication and coexisting diagnoses from index admissions. Clinical outcomes included 30-day and 180-day readmissions, mortality, days alive, and combined days alive and out of the hospital. Patients had a mean of 5.7 comorbidities and were stratified into low (0-2), moderate (3-8), and high comorbidity (≥9) subgroups. Increased comorbidity burden was associated with worse outcomes. NTM-NTC was not associated with readmission rates in any comorbidity subgroup. Among high comorbidity patients, NTM-NTC was associated with significantly lower mortality at 30 days (hazard ratio 0.25, 95% confidence interval 0.07-0.90) and 180 days (hazard ratio 0.51, 95% confidence interval 0.27-0.98), as well as more days alive (160.1 vs 140.3, P = .029) and days alive out of the hospital (152.0 vs 133.2, P = .044) compared with usual care. CONCLUSIONS: Postdischarge NTM-NTC improved survival among patients with HF with a high comorbidity burden. Comorbidity burden may be useful for identifying patients likely to benefit from this management strategy.
AHRQ-funded; HS019311.
Citation: Kimchi A, Aronow HU, Ni YM .
Postdischarge noninvasive telemonitoring and nurse telephone coaching improve outcomes in heart failure patients with high burden of comorbidity.
J Card Fail 2023 May; 29(5):774-83. doi: 10.1016/j.cardfail.2022.11.012..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Telehealth, Health Information Technology (HIT), Hospital Discharge
Gamyroulas EM, Jones AE, Saunders JA
Trends in antiplatelet strategies 12-months following coronary stent placement in anticoagulated patients.
The guidelines for antithrombotic management in individuals undergoing percutaneous coronary interventions (PCIs) who also necessitate anticoagulant treatment are continually developing. The purpose of this study is to examine adjustments to antithrombotic regimens and correlated outcomes within a year following PCI in patients needing continued anticoagulation therapy. Data from patients discovered through electronic medical record searches were manually assessed to validate alterations in antithrombotic treatment from discharge up to one year post-PCI, as well as episodes of significant bleeding, clinically relevant non-major bleeding (CRNMB), major adverse cardiovascular or neurological events (MACNE), and all-cause mortality outcomes during an extra six-month follow-up period. The study found that one year after PCI, patients (n = 120) undergoing anticoagulation treatment were categorized based on their antiplatelet therapy status: no antiplatelet therapy (n = 16), single antiplatelet therapy (SAPT) (n = 85), or dual antiplatelet therapy (DAPT) (n = 19). Between 12 and 18 months post-PCI, there were two significant bleeds, seven CRNMB events, six MACNE incidents, two venous thromboembolisms, and five fatalities. All but one bleeding occurrence transpired in the SAPT group. The likelihood of maintaining DAPT at 12 months was elevated in patients who underwent PCI for acute coronary syndrome and those who experienced MACNE within one year post-PCI; however, these associations did not reach statistical significance.
AHRQ-funded; HS027960
Citation: Gamyroulas EM, Jones AE, Saunders JA .
Trends in antiplatelet strategies 12-months following coronary stent placement in anticoagulated patients.
BMC Cardiovasc Disord 2023 Mar 8;23(1):117. doi: 10.1186/s12872-023-03161-7.
Keywords: Blood Thinners, Medication, Heart Disease and Health, Cardiovascular Conditions, Adverse Drug Events (ADE), Adverse Events
Tan MS, Heise CW, Gallo T
Relationship between a risk score for QT interval prolongation and mortality across rural and urban inpatient facilities.
The objectives of this retrospective observational study were to evaluate the relationship between a modified Tisdale QTc-risk score (QTc-RS), inpatient mortality, and length of stay in a broad inpatient population with an order for a medication with a known risk of torsades de pointes (TdP). Inpatient data from 28 healthcare facilities in the western US were used. The results indicated that there is a strong relationship between increased mortality as well as longer duration of hospitalization with an increasing QTc-RS.
AHRQ-funded; HS026662.
Citation: Tan MS, Heise CW, Gallo T .
Relationship between a risk score for QT interval prolongation and mortality across rural and urban inpatient facilities.
J Electrocardiol 2023 Mar;77:4-9. doi: 10.1016/j.jelectrocard.2022.11.008.
Keywords: Heart Disease and Health, Cardiovascular Conditions, Mortality, Rural Health, Urban Health, Risk
Stockdill ML, Dionne-Odom JN, Wells R
African American recruitment in early heart failure palliative care trials: outcomes and comparison with the ENABLE CHF-PC randomized trial.
This study examined African American (AA) clinical trial recruitment and enrollment in a palliative care randomized controlled trial (RCT) for heart failure (HF) patients and compared patient baseline characteristics to other HF palliative care RCTs. The authors used the ENABLE CHF-PC (Educate, Nurture, Advise, Before Life Ends: Comprehensive Heartcare for Patients and Caregivers) RCT using bivariate statistics to compare racial and patient characteristics and differences through recruitment stages. They then compared the baseline sample characteristics among three palliative HF trials. They screened 785 patients, of whom 566 with NYHA classification III-IV were approached, with 461 enrolled and then 415 randomized. African Americans were more likely to consent than Caucasians (55%), were younger, had a lower ejection fraction, were more likely to be single, and lack an advanced directive. AAs reported higher goal setting, care coordination, and used more “denial” coping strategies. Compared to two recent HF RCTs, the ENABLE CHF-PC sample had a higher proportion of AAs.
AHRQ-funded; HS013852.
Citation: Stockdill ML, Dionne-Odom JN, Wells R .
African American recruitment in early heart failure palliative care trials: outcomes and comparison with the ENABLE CHF-PC randomized trial.
J Palliat Care 2023 Jan;38(1):52-61. doi: 10.1177/0825859720975978..
Keywords: Racial and Ethnic Minorities, Palliative Care, Heart Disease and Health, Cardiovascular Conditions
Likosky DS, Strobel RJ, Wu X
Interhospital failure to rescue after coronary artery bypass grafting.
Researchers conducted an observational study to evaluate whether interhospital variation in mortality rates for coronary artery bypass grafting was driven by complications and failure to rescue. Subjects were patients undergoing grafting surgery across 90 hospitals between 2011 and 2017. Results indicated the predicted mortality risk was similar across hospital observed:expected mortality terciles. Observed and expected failure to rescue rates were positively correlated among patients with major and overall complications. The researchers concluded that interhospital variability in successful rescue after coronary artery bypass grafting supports the importance of identifying best practices at high-performing hospitals; this includes early recognition and management of complications.
AHRQ-funded; HS026003.
Citation: Likosky DS, Strobel RJ, Wu X .
Interhospital failure to rescue after coronary artery bypass grafting.
J Thorac Cardiovasc Surg 2023 Jan;165(1):134-43.e3. doi: 10.1016/j.jtcvs.2021.01.064..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Surgery, Hospitals, Adverse Events
Funk RJ, Pagani FD, Hou H
Care fragmentation predicts 90-day durable ventricular assist device outcomes.
The purpose of this cohort study was to investigate the relationship between care fragmentation and in-hospital as well as 90-day post-operative outcomes for patients receiving durable ventricular assist device (VAD) implants. The research utilized Medicare claims connected to the Society of Thoracic Surgeons (STS) Interagency Registry for Mechanically Assisted Circulatory Support (Intermacs) for patients who underwent VAD implantation from July 2009 to April 2017. Medicare information was employed to assess the fragmentation of the multidisciplinary care delivery network at the treating hospital, based on the providers' patient-sharing history within the preceding year. The STS Intermacs database was utilized for risk adjustment and outcome determination. Hospitals were categorized into terciles according to the level of network fragmentation, measured by the average number of connections separating providers in the network. Multivariable regression analysis was conducted to examine the association between network fragmentation and the risk of death or infection within 90 days. The study included 5159 patients who received VAD implants, and found 11.2% mortality and 27.6% infection incidence within 90 days following implantation. After adjusting for confounders, a one-unit increase in network fragmentation correlated with a 0.179 rise in in-hospital infection probability and a 0.183 increase in the likelihood of 90-day infection. Comparable findings were observed in models assessing the number of in-hospital and 90-day infections. While network fragmentation was a predictor of 90-day mortality probability, this association was not significant after adjustment.
AHRQ-funded; HS026003
Citation: Funk RJ, Pagani FD, Hou H .
Care fragmentation predicts 90-day durable ventricular assist device outcomes.
Am J Manag Care 2022 Dec;28(12):e444-e51. doi: 10.37765/ajmc.2022.89280.
Keywords: Medical Devices, Heart Disease and Health, Cardiovascular Conditions
A Wehbe, RM Wu, T
AHRQ Author: Tibrewala
Hyponatremia is a powerful predictor of poor prognosis in left ventricular assist device patients.
Researchers sought to investigate the prognostic value of serum sodium in left ventricular assist device (LVAD) patients and whether hyponatremia reflects worsening heart failure or an alternative mechanism. Heart failure patients who had undergone LVAD implantation 2008-2019 were identified; the researchers assessed for differences in hyponatremia before and after implantation. The findings suggested that hyponatremia in LVAD patients was associated with a significantly higher risk of all-cause mortality and recurrent heart failure hospitalizations. The researchers concluded that hyponatremia may be a marker of ongoing neurohormonal activation more sensitive than other lab values, echocardiography parameters, and hemodynamic measurements.
AHRQ-funded; HS026385.
Citation: A Wehbe, RM Wu, T .
Hyponatremia is a powerful predictor of poor prognosis in left ventricular assist device patients.
ASAIO J 2022 Dec;68(12):1475-82. doi: 10.1097/mat.0000000000001691.
Keywords: Medical Devices, Heart Disease and Health, Cardiovascular Conditions
Schroeder MC, Chapman CG, Chrischilles EA
Generating practice-based evidence in the use of guideline-recommended combination therapy for secondary prevention of acute myocardial infarction.
This study’s goal was to determine if variation in real-world practice of guideline-recommended combination therapy for secondary prevention of acute myocardial infarction (AMI) reflects poor quality-of-care or a balance of outcome tradeoffs among patients. Medicare fee-for-service beneficiaries hospitalized 2007-2008 for AMI were included. Treatment within 30-days post-discharge was grouped into one of eight possible combinations for the three drug classes: beta-blockers, angiotensin-converting enzyme inhibitors/angiotensin-receptor blockers, and statins. Outcomes looked at included one-year overall survival, one-year cardiovascular-event-free survival, and 90-day adverse events. Results were found that each drug combination was observed in the final sample (N = 124,695), with 35.7% having all three, and 13.5% having none. There were both treatment benefits and harms in patients with AMIs with higher rates of guideline-recommended treatment.
AHRQ-funded; HS018381.
Citation: Schroeder MC, Chapman CG, Chrischilles EA .
Generating practice-based evidence in the use of guideline-recommended combination therapy for secondary prevention of acute myocardial infarction.
Pharmacy 2022 Nov 3;10(6). doi: 10.3390/pharmacy10060147..
Keywords: Evidence-Based Practice, Guidelines, Heart Disease and Health, Cardiovascular Conditions, Comparative Effectiveness, Patient-Centered Outcomes Research, Prevention