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Search All Research Studies
AHRQ Research Studies Date
Topics
- Adverse Events (1)
- Cardiovascular Conditions (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 9 of 9 Research Studies DisplayedKrishnamurthy Y, Cooper LB, Parikh KS
Pulmonary hypertension in the era of mechanical circulatory support.
The researchers summarized the literature available to highlight the definition, pathogenesis, and prognosis of pulmonary hypertension (PH) due to left heart disease (LHD). Additionally, they discussed the use of mechanical circulatory support (MCS) in this population. Then, they provided recommendations regarding the management and reassessment of PH due to LHD in the specific context of MCS.
AHRQ-funded; HS021092.
Citation: Krishnamurthy Y, Cooper LB, Parikh KS .
Pulmonary hypertension in the era of mechanical circulatory support.
ASAIO J 2016 Sep-Oct;62(5):505-12. doi: 10.1097/mat.0000000000000408.
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Keywords: Comparative Effectiveness, Heart Disease and Health, Medical Devices, Respiratory Conditions
Khazanie P, Hammill BG, Patel CB
Use of heart failure medical therapies among patients with left ventricular assist devices: insights from INTERMACS.
The authors examined the use of heart failure medications before and after left ventricular assist devices (LVAD) implant in adult patients enrolled in the Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS). They found that overall use of neurohormonal antagonists was low after LVAD implant, whereas use of loop diuretics and amiodarone remained high, and concluded that heart failure medication use is highly variable, but appears to generally increase after LVAD implantation.
AHRQ-funded; HS021092.
Citation: Khazanie P, Hammill BG, Patel CB .
Use of heart failure medical therapies among patients with left ventricular assist devices: insights from INTERMACS.
J Card Fail 2016 Sep;22(9):672-9. doi: 10.1016/j.cardfail.2016.02.004.
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Keywords: Comparative Effectiveness, Heart Disease and Health, Medical Devices, Medication, Patient-Centered Outcomes Research
Kostick KM, Minard CG, Wilhelms LA
Development and validation of a patient-centered knowledge scale for left ventricular assist device placement.
The authors presented a comprehensive and valid methodology for developing a clinically informed and patient-centered measure of knowledge about left ventricular assist device (LVAD) therapy to facilitate discussion and measure candidate understanding of treatment options. They concluded that the LVAD knowledge scale may be useful in clinical settings to identify gaps in knowledge among patient candidates considering LVAD treatment; to better tailor education and discussion with patients and their caregivers; and to enhance informed decision-making before treatment decisions are made.
AHRQ-funded; HS024849.
Citation: Kostick KM, Minard CG, Wilhelms LA .
Development and validation of a patient-centered knowledge scale for left ventricular assist device placement.
J Heart Lung Transplant 2016 Jun;35(6):768-76. doi: 10.1016/j.healun.2016.01.015.
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Keywords: Decision Making, Heart Disease and Health, Medical Devices, Patient and Family Engagement, Patient-Centered Outcomes Research
Zeitler EP, Hellkamp AS, Schulte PJ
Comparative effectiveness of implantable cardioverter defibrillators for primary prevention in women.
The researchers examined clinical practice data to compare survival rates among women with heart failure with or without a primary prevention implantable cardioverter defibrillator (ICD). Theyn found that among patients with heart failure with reduced left ventricular ejection fraction, a primary prevention ICD was associated with a significant survival advantage among women and among men.
AHRQ-funded; HS021092.
Citation: Zeitler EP, Hellkamp AS, Schulte PJ .
Comparative effectiveness of implantable cardioverter defibrillators for primary prevention in women.
Circ Heart Fail 2016 Jan;9(1):e002630. doi: 10.1161/circheartfailure.115.002630.
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Keywords: Medical Devices, Comparative Effectiveness, Prevention, Heart Disease and Health, Mortality
Steinberg BA, Al-Khatib SM, Edwards R
Outcomes of implantable cardioverter-defibrillator use in patients with comorbidities: results from a combined analysis of 4 randomized clinical trials.
The researchers aimed to determine if the benefit of implantable cardioverter-defibrillators (ICDs) is modulated by medical comorbidity. They concluded that patients with extensive comorbid medical illnesses may experience less benefit from primary prevention ICDs than those with less comorbidity, and that implantation should be carefully considered in sick patients. They recommended further study of ICDs in medically complex patients.
AHRQ-funded; HS018505.
Citation: Steinberg BA, Al-Khatib SM, Edwards R .
Outcomes of implantable cardioverter-defibrillator use in patients with comorbidities: results from a combined analysis of 4 randomized clinical trials.
JACC Heart Fail 2014 Dec;2(6):623-9. doi: 10.1016/j.jchf.2014.06.007.
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Keywords: Adverse Events, Heart Disease and Health, Medical Devices, Patient-Centered Outcomes Research
Khazanie P, Hammill BG, Qualls LG
Clinical effectiveness of cardiac resynchronization therapy versus medical therapy alone among patients with heart failure: analysis of the ICD Registry and ADHERE.
The researchers examined associations between cardiac resynchronization therapy with defibrillator (CRT-D) and mortality and readmission among patients with heart failure who received CRT-D in clinical practice, compared with those who received medical therapy alone. They found that CRT-D was associated with lower risks of mortality and readmission than medical therapy alone.
AHRQ-funded; HS021092
Citation: Khazanie P, Hammill BG, Qualls LG .
Clinical effectiveness of cardiac resynchronization therapy versus medical therapy alone among patients with heart failure: analysis of the ICD Registry and ADHERE.
Circ Heart Fail. 2014 Nov;7(6):926-34. doi: 10.1161/circheartfailure.113.000838..
Keywords: Comparative Effectiveness, Heart Disease and Health, Medical Devices, Hospital Readmissions, Outcomes
Setoguchi SR, Warner Stevenson L, Stewart GC
Influence of healthy candidate bias in assessing clinical effectiveness for implantable cardioverter-defibrillators: cohort study of older patients with heart failure.
This study assessed the potential contribution of unmeasured general health status to patient selection in assessments of implantable cardioverter-defibrillator (ICD) therapy. In a group of heart failure patients, those who received ICD therapy were younger and had lower ejection fraction and more cardiac admissions to hospital but fewer non-cardiac admissions. The lower risks of measured outcomes likely reflect unmeasured differences in comorbidity and frailty.
AHRQ-funded; 29020050016I; HS017731
Citation: Setoguchi SR, Warner Stevenson L, Stewart GC .
Influence of healthy candidate bias in assessing clinical effectiveness for implantable cardioverter-defibrillators: cohort study of older patients with heart failure.
BMJ. 2014 May 8;348:g2866. doi: 10.1136/bmj.g2866..
Keywords: Medical Devices, Outcomes, Registries, Heart Disease and Health, Medicare
Al-Khatib SM, Han JY, Edwards R
Do patients with a left ventricular ejection fraction between 30% and 35% benefit from a primary prevention implantable cardioverter defibrillator?
The researchers used data from randomized clinical trials involving patients with systolic heart failure who had received implantable cardioverter-defibrillators and compared outcomes for those whose left ventricular ejection fractions (LVEFs) was between 30 percent and 35 percent with those whose LVEF was less than 30 percent. The sample size was too small to permit any important conclusions.
AHRQ-funded; HS018505
Citation: Al-Khatib SM, Han JY, Edwards R .
Do patients with a left ventricular ejection fraction between 30% and 35% benefit from a primary prevention implantable cardioverter defibrillator?
Int J Cardiol. 2014 Mar 1;172(1):253-4. doi: 10.1016/j.ijcard.2013.12.278..
Keywords: Comparative Effectiveness, Outcomes, Medical Devices, Heart Disease and Health, Chronic Conditions
Kesselheim AS, Xu S
Clinicians' contributions to the development of coronary artery stents: a qualitative study of transformative device innovation.
In order to better understand medical device innovation, the researchers conducted interviews with the innovators whose work contributed to the development of coronary artery stents. They found that individual physician-inventors saw the need for coronary artery stents in their clinical practice and then developed prototypes with the support of academic medical centers, followed by early validation studies.
AHRQ-funded; HS018465
Citation: Kesselheim AS, Xu S .
Clinicians' contributions to the development of coronary artery stents: a qualitative study of transformative device innovation.
PLoS One. 2014 Feb 12;9(2):e88664. doi: 10.1371/journal.pone.0088664..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Medical Devices