National Healthcare Quality and Disparities Report
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AHRQ Research Studies Date
Topics
- Adverse Events (6)
- Cardiovascular Conditions (12)
- Caregiving (2)
- Children/Adolescents (1)
- Comparative Effectiveness (2)
- Decision Making (2)
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- Health Information Technology (HIT) (2)
- Heart Disease and Health (13)
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- (-) Medical Devices (26)
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- Patient-Centered Outcomes Research (3)
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- Patient Safety (6)
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- Policy (1)
- Quality of Life (1)
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- Respiratory Conditions (1)
- Risk (1)
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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 26 Research Studies DisplayedFunk 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
Marcaccio CL, O'Donnell TFX, Dansey KD
Disparities in reporting and representation by sex, race, and ethnicity in endovascular aortic device trials.
The purpose of this study was to examine the demographics of patients enrolled in critical U.S. endovascular aortic device trials to explore the representation of vulnerable populations, including women and racial and ethnic minorities. The primary outcomes included the percentage of trials reporting participant sex, race, and ethnicity and the percentage of participants across sex, racial, and ethnic groups. The study found that the Food and Drug Administration (FDA) provided 29 approvals from 29 trials of 24 devices with a total of 4046 patients: 52% (15) were EVAR devices, 41% (12) were TEVAR devices, and 3.4% (1) was a FEVAR device, with 1 dissection stent (3.4%). Fifty-two percent of the trials reported the three most common racial groups (White, Black, Asian), and 48% reported Hispanic ethnicity. The TEVAR trials were the most likely to report all three racial groups and Hispanic ethnicity (92% and 75%, respectively), while the EVAR trials had the lowest reporting rates (13% and 20%, respectively). The median female enrollment was 21%, with the EVAR trials having the lowest female enrollment compared with 41% in the TEVAR trials, 21% in the FEVAR trial, and 34% in the dissection stent trial. The study concluded that in critical aortic device trials that led to FDA approval, female patients were underrepresented, especially for EVAR, and racial and ethnic minority groups were under-represented and underreported.
AHRQ-funded; HS027285.
Citation: Marcaccio CL, O'Donnell TFX, Dansey KD .
Disparities in reporting and representation by sex, race, and ethnicity in endovascular aortic device trials.
J Vasc Surg 2022 Nov;76(5):1244-52.e2. doi: 10.1016/j.jvs.2022.05.003..
Keywords: Disparities, Racial and Ethnic Minorities, Heart Disease and Health, Cardiovascular Conditions, Medical Devices, Sex Factors
Likosky DS, Yang G, Zhang M
Interhospital variability in health care-associated infections and payments after durable ventricular assist device implant among Medicare beneficiaries.
The purpose of this study was to examine differences in durable ventricular assist device implantation infection rates and associated costs across hospitals. The researchers utilized clinical data for 8,688 patients who received primary durable ventricular assist devices from the Society of Thoracic Surgeons Interagency Registry for Mechanically Assisted Circulatory Support (Intermacs) hospitals (n = 120) and merged that data with post-implantation 90-day Medicare claims. The primary outcome included infections within 90 days of implantation and Medicare payments. The study found that 27.8% of patients developed 3982 identified infections. The median adjusted incidence of infections (per 100 patient-months) across hospitals was 14.3 and differed according to hospital. Total Medicare payments from implantation to 90 days were 9.0% more in high versus low infection tercile hospitals. The researchers concluded that health-care-associated infection rates post durable ventricular assist device implantation varied according to hospital and were associated with increased 90-day Medicare expenditures.
AHRQ-funded; HS026003.
Citation: Likosky DS, Yang G, Zhang M .
Interhospital variability in health care-associated infections and payments after durable ventricular assist device implant among Medicare beneficiaries.
J Thorac Cardiovasc Surg 2022 Nov;164(5):1561-68. doi: 10.1016/j.jtcvs.2021.04.074..
Keywords: Healthcare-Associated Infections (HAIs), Medical Devices, Medicare, Heart Disease and Health, Cardiovascular Conditions, Hospitals, Payment, Healthcare Costs
Yang G, Zhang M, Zhou S
Incompleteness of health-related quality of life assessments before left ventricular assist device implant: a novel quality metric.
Investigators hypothesized that pre-implant health-related quality of life (HRQOL) incompleteness in The Society of Thoracic Surgeons' Intermacs registry for patients undergoing left ventricular assist device (LVAD) implantation predicts 90-day outcomes. They found that HRQOL incompleteness at high-rate hospitals was more often due to administrative reasons and less likely due to patient reasons. Increases in the adjusted pre-implant incompleteness rates were significantly associated with higher risk of infection-related mortality, infection, and renal dysfunction. They concluded that hospital adjusted pre-implant HRQOL incompleteness was predictive of 90-day post-implant outcomes and may serve as a novel quality metric.
AHRQ-funded; HS026003.
Citation: Yang G, Zhang M, Zhou S .
Incompleteness of health-related quality of life assessments before left ventricular assist device implant: a novel quality metric.
J Heart Lung Transplant 2022 Oct;41(10):1520-28. doi: 10.1016/j.healun.2022.07.001..
Keywords: Quality of Life, Medical Devices, Heart Disease and Health, Cardiovascular Conditions
Kim KD, Funk RJ, Hou H
Association between care fragmentation and total spending after durable left ventricular device implant: a mediation analysis of health care-associated infections within a national Medicare-Society of Thoracic Surgeons INTERMACS linked dataset.
The purpose of this study was to examine the relationship between care fragmentation and total spending for durable left ventricular assisted device (LVAD) implant, and whether this relationship is mediated by infections. The researchers developed a measure of care fragmentation based on the number of shared medical professionals providing care to 4,987 Medicare beneficiaries undergoing LVAD implantation. The study found that the indirect effect of care fragmentation, through infections, was positive and statistically significant. The researchers concluded that higher care fragmentation associated with durable LVAD implantation is related with a greater incidence of infections and higher Medicare beneficiary payments.
AHRQ-funded; HS026003.
Citation: Kim KD, Funk RJ, Hou H .
Association between care fragmentation and total spending after durable left ventricular device implant: a mediation analysis of health care-associated infections within a national Medicare-Society of Thoracic Surgeons INTERMACS linked dataset.
Circ Cardiovasc Qual Outcomes 2022 Sep;15(9):e008592. doi: 10.1161/circoutcomes.121.008592..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Healthcare Costs, Healthcare-Associated Infections (HAIs), Medicare, Medical Devices, Healthcare Delivery
Mao J, Sedrakyan A, Sun T
Assessing adverse event reports of hysteroscopic sterilization device removal using natural language processing.
This study’s objective was to develop an annotation model to develop natural language processing (NLP) to device adverse event reports and to implement the model to evaluate the most frequently experienced events among women reporting a sterilization device removal. Adverse event reports from the Manufacturer and User Facility Device Experience database from January 2005 to June 2018 were included. The authors used an iterative process to develop an annotation model that extracts six categories of desired information and applied the annotation model to train an NLP algorithm. A total of 16,535 reports of device removal were analyzed with the most frequently reported patient and device events being abdominal/pelvic/genital pain (79.6%) and device dislocation/migration (19.2%), respectively. A total of 7,932 patients reported an additional sterilization procedure of a hysterectomy or salpingectomy. One-fifth of the cases that had device removal timing specified reported a removal 7 years after original insertion.
AHRQ-funded; HS026291.
Citation: Mao J, Sedrakyan A, Sun T .
Assessing adverse event reports of hysteroscopic sterilization device removal using natural language processing.
Pharmacoepidemiol Drug Saf 2022 Apr;31(4):442-51. doi: 10.1002/pds.5402..
Keywords: Adverse Events, Surgery, Medical Devices, Patient Safety
Grennan M, Kim GH, McConnell KJ
Hospital management practices and medical device costs.
The authors sought to determine whether the variation in prices paid for cardiac medical devices was associated with management practices in cardiac units. Unit prices on management practice scores and other hospital characteristics were regressed for the 11 top-spending cardiac device categories. The authors found that better management practices were associated with lower device prices. They noted that this modest magnitude was similar to other events expected to lower input prices, such as transparency in the form of benchmarking information and hospital mergers.
AHRQ-funded; HS018466.
Citation: Grennan M, Kim GH, McConnell KJ .
Hospital management practices and medical device costs.
Health Serv Res 2022 Apr;57(2):227-36. doi: 10.1111/1475-6773.13898..
Keywords: Medical Devices, Hospitals, Healthcare Costs
Pienta MJ, Shore S, Watt TMF
Patient factors associated with left ventricular assist device infections: a scoping review.
This article is a scoping review that systematically summarized all existing studies examining patient-related factors associated with infections after left ventricular assist device (LVAD) implantation. Studies published between January 2006 and February 2019 were used, with 31 studies meeting inclusion criteria. All included studies were observational, and 17 focused on driveline infections. Other factors most commonly studied included body composition (n = 8), diabetes and other comorbidities (n = 8), and psychosocial/socio-economic factors (n = 6). Studies were frequently single-center, and patient race and sex did not correlate with infection risk. There was also no consistent association noted between obesity, diabetes, or psychosocial/socio-economic factors and LVAD recipient infections. Two studies did report a significant association between malnutrition and hypoalbuminemia and post implant infections.
AHRQ-funded; HS026003.
Citation: Pienta MJ, Shore S, Watt TMF .
Patient factors associated with left ventricular assist device infections: a scoping review.
J Heart Lung Transplant 2022 Apr; 41(4):425-33. doi: 10.1016/j.healun.2022.01.011..
Keywords: Medical Devices, Healthcare-Associated Infections (HAIs), Heart Disease and Health, Cardiovascular Conditions
Valbuena VSM, Barbaro RP, Claar D
Racial bias in pulse oximetry measurement among patients about to undergo extracorporeal membrane oxygenation in 2019-2020: a retrospective cohort study.
This study examined whether pulse oximeters detect arterial hypoxemia less effectively in Black, Hispanic, and/or Asian patients than in White patients in respiratory failure who are about to undergo extracorporeal membrane oxygenation (ECMO). Data on adult patients with respiratory failure readings 6 hours before ECMO from 324 centers from January 2019 to July 2020 who were in the Extracorporeal Life Support Organization registry was used. The author’s primary analysis was of rates of occult hypoxemia-low arterial oxygen saturation (Sao(2) ≤ 88%) on arterial blood gas measurement despite a pulse oximetry reading in the range of 92% to 96%. The rate of pre-ECMO occult hypoxemia was 10.2% for 186 White patients with peripheral oxygen saturation; 21.5% for 51 Black patients; 8.6% for 70 Hispanic patients; and 9.2% for 75 Asian patients. The risk of occult hypoxemia was comparable for Hispanic and Asian patients to White patients, but the prevalence of occult hypoxemia was higher in Black patients than for White patients about to undergo ECMO for respiratory failure.
AHRQ-funded; HS028038.
Citation: Valbuena VSM, Barbaro RP, Claar D .
Racial bias in pulse oximetry measurement among patients about to undergo extracorporeal membrane oxygenation in 2019-2020: a retrospective cohort study.
Chest 2022 Apr;161(4):971-78. doi: 10.1016/j.chest.2021.09.025..
Keywords: Racial and Ethnic Minorities, Medical Devices, Respiratory Conditions
Rao BR, Merchant FM, Abernethy ER
The impact of government-mandated shared decision-making for implantable defibrillators: a natural experiment.
This study examined the impact of the 2018 Centers for Medicare and Medicaid Services (CMS) mandate that patients considering implantation of an implantable cardioverter-defibrillator (ICD) for primary prevention of sudden cardiac death undergo shared decision-making (SDM) using a decision-aid. The authors surveyed patients who underwent implantation of a primary prevention ICD within the Emory Healthcare system between 2017-2019 (pre and post SDM mandate). Survey domains included decisional conflict, knowledge about the ICD, values-choice concordance, and engagement in decision-making. Of 101 patients who completed the survey, 45 had an ICD placed before the mandate and 56 placed after. No major differences were found between any of the survey domains. Patients with ICDs after the mandate were more likely to subjectively feel more informed about the benefits of the procedure but were less likely to be able to correctly identify the frequency of complications.
AHRQ-funded; HS028558.
Citation: Rao BR, Merchant FM, Abernethy ER .
The impact of government-mandated shared decision-making for implantable defibrillators: a natural experiment.
Pacing Clin Electrophysiol 2022 Feb; 45(2):274-80. doi: 10.1111/pace.14414..
Keywords: Decision Making, Medical Devices, Policy, Cardiovascular Conditions
Shore S, Pienta MJ, Watt TMF
Non-patient factors associated with infections in LVAD recipients: a scoping review.
Infections are the most common complication in recipients of durable left ventricular assist devices (LVAD) and are associated with increased morbidity, mortality, and expenditures. The existing literature examining factors associated with infection in LVAD recipients is limited and principally comprises single-center studies. This scoping review synthesized all available evidence related to identifying modifiable, non-patient factors associated with infections among LVAD recipients.
AHRQ-funded; HS026003.
Citation: Shore S, Pienta MJ, Watt TMF .
Non-patient factors associated with infections in LVAD recipients: a scoping review.
J Heart Lung Transplant 2022 Jan;41(1):1-16. doi: 10.1016/j.healun.2021.10.006..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Surgery, Medical Devices
Goldstone AB, Chiu P, Baiocchi M
Mechanical or biologic prostheses for aortic-valve and mitral-valve replacement.
This study compared long-term mortality and rates of reoperation, stroke, and bleeding between cohorts of patients who underwent primary aortic-valve replacement or mitral-valve replacement with a mechanical or biologic prosthesis. The long-term mortality benefit associated with a mechanical prosthesis, as compared with a biologic prosthesis, persisted until 70 years of age among patients undergoing mitral-valve replacement and until 55 years of age among those undergoing aortic-valve replacement.
AHRQ-funded; HS022192.
Citation: Goldstone AB, Chiu P, Baiocchi M .
Mechanical or biologic prostheses for aortic-valve and mitral-valve replacement.
N Engl J Med 2017 Nov 9;377(19):1847-57. doi: 10.1056/NEJMoa1613792.
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Keywords: Adverse Events, Cardiovascular Conditions, Medical Devices, Patient-Centered Outcomes Research, Surgery
Zeitler EP, Al-Khatib SM, Friedman DJ
Predicting appropriate shocks in patients with heart failure: patient level meta-analysis from SCD-HeFT and MADIT II.
The study authors sought to identify characteristics predictive of appropriate shocks in patients with a primary prevention implantable cardioverter defibrillator (ICD). In this meta-analysis of patient level data from Multicenter Automatic Defibrillator Implantation Trial II and Sudden Cardiac Death in Heart Failure Trial, higher NYHA class, lower LVEF, no beta-blocker therapy, and single chamber ICD (vs. dual chamber) were significant predictors of appropriate shocks.
AHRQ-funded; HS018505.
Citation: Zeitler EP, Al-Khatib SM, Friedman DJ .
Predicting appropriate shocks in patients with heart failure: patient level meta-analysis from SCD-HeFT and MADIT II.
J Cardiovasc Electrophysiol 2017 Nov;28(11):1345-51. doi: 10.1111/jce.13307.
Keywords: Comparative Effectiveness, Heart Disease and Health, Medical Devices, Medical Devices, Risk
Branzetti JB, Adedipe AA, Gittinger MJ
Randomised controlled trial to assess the effect of a Just-in-Time training on procedural performance: a proof-of-concept study to address procedural skill decay.
The purpose of this study was to evaluate the impact of a novel Just-in-Time (JIT) intervention on transvenous pacemaker (TVP) placement during a simulated patient event. The authors concluded that a JIT intervention improved procedure performance, suggesting a role for JIT interventions in rarely performed procedures.
AHRQ-funded; HS020295
Citation: Branzetti JB, Adedipe AA, Gittinger MJ .
Randomised controlled trial to assess the effect of a Just-in-Time training on procedural performance: a proof-of-concept study to address procedural skill decay.
BMJ Qual Saf 2017 Nov;26(11):881-91. doi: 10.1136/bmjqs-2017-006656..
Keywords: Medical Devices, Patient Safety, Surgery, Training, Emergency Medical Services (EMS)
Sobotka SA, Agarwal RK, Msall ME
Prolonged hospital discharge for children with technology dependency: a source of health care disparities.
As the population of children who use medical technology such as long-term ventilation increases, it is important to critically evaluate the systems for preparing families for home life. The authors discuss the complication of hospital discharge and how it contributes to health and developmental disparities. They also describe a hospital-to-home transitional care model, which presents a home-like environment to provide developmental support while focusing on parental training, home nursing, and public-funding arrangements.
AHRQ-funded; HS023007.
Citation: Sobotka SA, Agarwal RK, Msall ME .
Prolonged hospital discharge for children with technology dependency: a source of health care disparities.
Pediatr Ann 2017 Oct;46(10):e365-e70. doi: 10.3928/19382359-20170919-01.
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Keywords: Children/Adolescents, Disparities, Home Healthcare, Hospital Discharge, Medical Devices
Ross JS, Bates J, Parzynski CS
Can machine learning complement traditional medical device surveillance? A case study of dual-chamber implantable cardioverter-defibrillators.
Using data from the National Cardiovascular Data Registry for implantable cardioverter-defibrillators (ICDs) linked to Medicare administrative claims for longitudinal follow-up, the researchers applied three statistical approaches to safety-signal detection for commonly used dual-chamber ICDs that used two propensity score (PS) models. The three approaches, including one machine learning method, identified important safety signals, but without exact agreement.
AHRQ-funded; HS023000.
Citation: Ross JS, Bates J, Parzynski CS .
Can machine learning complement traditional medical device surveillance? A case study of dual-chamber implantable cardioverter-defibrillators.
Med Devices 2017 Aug 16;10:165-88. doi: 10.2147/mder.s138158.
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Keywords: Medical Devices, Registries, Patient Safety, Adverse Events
Keller SC, Gurses AP, Werner N
Older adults and management of medical devices in the home: five requirements for appropriate use.
This study concerns a qualitative evaluation of barriers and facilitators of appropriate use, and outcomes of inappropriate use, among older adults at the transition from hospital to home with skilled home health care (SHHC). Five requirements for the appropriate use of home medical devices were identified. A systems approach integrating the hospital with the SHHC agency is needed to make the use of home medical devices safer.
AHRQ-funded; HS022916.
Citation: Keller SC, Gurses AP, Werner N .
Older adults and management of medical devices in the home: five requirements for appropriate use.
Popul Health Manag 2017 Aug;20(4):278-86. doi: 10.1089/pop.2016.0070.
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Keywords: Elderly, Caregiving, Home Healthcare, Medical Devices, Patient Safety
Kang H, Yu Z, Gong Y
Initializing and growing a database of health information technology (HIT) events by using TF-IDF and biterm topic modeling.
Health information technology (HIT) events were listed in the top 10 technology-related hazards since one in six patient safety events (PSE) is related to HIT. Aiming to retrieve HIT events from millions of event reports related to medical devices in FDA Manufacturer and User Facility Device Experience (MAUDE) database, the study authors proposed a novel identification strategy. Their strategy holds promise of initializing and growing an HIT database to meet the challenges of collecting, analyzing, sharing, and learning from HIT events at an aggregated level.
AHRQ-funded; HS022895.
Citation: Kang H, Yu Z, Gong Y .
Initializing and growing a database of health information technology (HIT) events by using TF-IDF and biterm topic modeling.
AMIA Annu Symp Proc 2017 Apr 16;2017:1024-33..
Keywords: Adverse Events, Health Information Technology (HIT), Medical Devices, Health Information Technology (HIT), Patient Safety
Kang H, Wang F, Zhou S
Identifying and synchronizing health information technology (HIT) events from FDA medical device reports.
Health information technology (HIT) events, a subtype of patient safety events, pose a major threat and barrier toward a safer healthcare system. The study authors proposed a strategy to identify and synchronize HIT events from the FDA Manufacturer and User Facility Device Experience (MAUDE) database by using a filter based on structured features and classifiers based on unstructured features. The strategy will help develop and grow an HIT event-exclusive database, keeping pace with updates to MAUDE toward shared learning.
AHRQ-funded; HS022895.
Citation: Kang H, Wang F, Zhou S .
Identifying and synchronizing health information technology (HIT) events from FDA medical device reports.
Stud Health Technol Inform 2017;245:1048-52.
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Keywords: Adverse Events, Health Information Technology (HIT), Medical Devices, Health Information Technology (HIT), Patient Safety
Blumenthal-Barby JS, Kostick KM, Delgado ED
Assessment of patients' and caregivers' informational and decisional needs for left ventricular assist device placement: implications for informed consent and shared decision-making.
The authors investigated the decision-making process and informational and decisional needs of patients and their caregivers regarding left ventricular assist device (LVAD) placement. They found that participants easily and clearly identified their values: life extension; family; and mobility. Participants reported the need to meet other patients and caregivers before device placement and to have an involved caregiver to synthesize information. They further found that some participants demonstrated a lack of clarity regarding transplant probability.
AHRQ-funded; HS024849.
Citation: Blumenthal-Barby JS, Kostick KM, Delgado ED .
Assessment of patients' and caregivers' informational and decisional needs for left ventricular assist device placement: implications for informed consent and shared decision-making.
J Heart Lung Transplant 2015 Sep;34(9):1182-9. doi: 10.1016/j.healun.2015.03.026.
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Keywords: Caregiving, Decision Making, Heart Disease and Health, Medical Devices, Patient and Family Engagement
Chen CY, Stevenson LW, Stewart GC
Real world effectiveness of primary implantable cardioverter defibrillators implanted during hospital admissions for exacerbation of heart failure or other acute co-morbidities: cohort study of older patients with heart failure.
The researchers examined the effectiveness of primary implantable cardioverter defibrillators (ICDs) in elderly patients receiving the device during a hospital admission for exacerbation of heart failure or other acute co-morbidities. They concluded that the benefits of primary ICD therapy seen in pivotal trials were not apparent in patients aged 66 or over who received ICDs during a hospital admission for exacerbation of heart failure or other acute co-morbidities.
AHRQ-funded; 290-2005-0016-I -TO3; HS017731.
Citation: Chen CY, Stevenson LW, Stewart GC .
Real world effectiveness of primary implantable cardioverter defibrillators implanted during hospital admissions for exacerbation of heart failure or other acute co-morbidities: cohort study of older patients with heart failure.
BMJ 2015 Jul 14;351:h3529. doi: 10.1136/bmj.h3529..
Keywords: Comparative Effectiveness, Elderly, Medical Devices, Heart Disease and Health, Outcomes
Pokorney SD, Miller AL, Chen AY
Implantable cardioverter-defibrillator use among Medicare patients with low ejection fraction after acute myocardial infarction.
This study examined Implantable Cardioverter-Defibrillator (ICD) implantation rates and associated mortality among older MI patients with low ejection fraction (EF). It found that fewer than 1 in 10 eligible patients with low EF received an ICD within 1 year after MI, although ICD implantation was associated with lower risk-adjusted mortality at 2 years.
AHRQ-funded; HS021092.
Citation: Pokorney SD, Miller AL, Chen AY .
Implantable cardioverter-defibrillator use among Medicare patients with low ejection fraction after acute myocardial infarction.
JAMA 2015 Jun 23-30;313(24):2433-40. doi: 10.1001/jama.2015.6409..
Keywords: Medical Devices, Heart Disease and Health, Medicare
Masoudi FA, Go AS, Magid DJ
Age and sex differences in long-term outcomes following implantable cardioverter-defibrillator placement in contemporary clinical practice: findings from the Cardiovascular Research Network.
The objectives of this study were to characterize the risks of adverse outcomes in women and older patients. following implantable cardioverter-defibrillator placement with a focus on death, hospitalization, and complications. It concluded that the burden of adverse outcomes is substantial and varies according to patient age and sex. These differences in outcome generally do not vary according to baseline heart failure characteristics.
AHRQ-funded; 290050033; HS019814.
Citation: Masoudi FA, Go AS, Magid DJ .
Age and sex differences in long-term outcomes following implantable cardioverter-defibrillator placement in contemporary clinical practice: findings from the Cardiovascular Research Network.
J Am Heart Assoc 2015 Jun 2;4(6):e002005. doi: 10.1161/jaha.115.002005..
Keywords: Medical Devices, Cardiovascular Conditions, Patient-Centered Outcomes Research, Elderly, Outcomes
Heidenreich PA, Tsai V, Bao H
Does age influence cardiac resynchronization therapy use and outcome?
This study sought to describe the use of cardiac resynchronization therapy with defibrillator (CRT-D) and its association with survival for older patients. It found that receipt of CRT-D was associated with better survival at 1 year (82.1 percent vs. 77.1 percent, respectively) and 4 years (54.0 percent vs. 46.2 percent , respectively) than in those receiving only an implantable cardiac defibrillator.
AHRQ-funded; HS019814.
Citation: Heidenreich PA, Tsai V, Bao H .
Does age influence cardiac resynchronization therapy use and outcome?
JACC Heart Fail 2015 Jun;3(6):497-504. doi: 10.1016/j.jchf.2015.01.012..
Keywords: Medical Devices, Cardiovascular Conditions, Heart Disease and Health, Elderly, Patient-Centered Outcomes Research