Publications by authors named "Brian K Irons"

Introduction: This study assessed student perception in treating chronic disease states before and after taking an ambulatory care didactic elective and the impact on performance within a fourth-year ambulatory care advanced pharmacy practice experience (APPE).

Methods: Assessment of student perceptions was evaluated in students taking the Fall 2016 and Spring 2017 elective offering by completing an 11-item electronic survey prior to the first lecture of the course and after the last lecture of the course. A retrospective assessment of student performance in the APPE compared students that had taken the elective to those that had not over a two-and-one-half year period.

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Background: Sodium-glucose co-transporter 2 (SGLT2) inhibitors are a new pharmacotherapeutic class for the treatment of Type 2 Diabetes Mellitus (T2DM).

Objective: To evaluate beneficial effects of the SGLT2 inhibitors on metabolic, cardiovascular, and renal outcomes.

Methods: A Pub-Med search (1966 to July 2017) was performed of published English articles using keywords sodium-glucose co-transporter 2 inhibitors, canagliflozin, dapagliflozin, and empagliflozin.

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Metformin is considered an initial drug of choice for type 2 diabetes mellitus by leading recommendations. When contraindications to its use exist or patients cannot tolerate it due to adverse effects, clinicians have a variety of other classes of agents to treat hyperglycemia associated with type 2 diabetes mellitus. Each class of agent has its own benefit and safety profile.

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Objectives: To evaluate whether the direct renin inhibitor, aliskiren, has a more favorable effect compared to amlodipine on atherosclerotic biomarkers in patients with stable coronary artery disease and diabetes currently receiving standard secondary prevention therapy.

Methods: A total of 38 patients were randomly assigned initially to either aliskiren (150 mg daily) or amlodipine (5 mg daily) for 2 weeks after which the dose of either medication was increased to its maximum daily dose for 4 additional weeks. Baseline and 6-week blood samples were analyzed for changes from baseline and between treatment groups for vascular and intracellular cell adhesion molecule, C-reactive protein, nitric oxide, plasminogen activator inhibitor 1, 8-isoprostane, and thiobarbituric acid reactive substances.

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The glucagon-like peptide-1 receptor agonists, exenatide and liraglutide, offer a unique mechanism in the treatment of type 2 diabetes mellitus (T2DM) as part of the incretin system. Their mechanism of action is to increase insulin secretion, decrease glucagon release, reduce food intake, and slow gastric emptying. They target postprandial blood glucose values and have some effect on fasting levels as well.

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Dipeptidyl peptidase -4 inhibitors represent a novel way to augment the incretin system and one of the newest class of medications in the treatment of type 2 diabetes mellitus. Their mechanism of action is to decrease the inactivation of glucagon-like peptide 1 and glucose-dependent insulinotropic polypeptide, both of which are involved in maintaining euglycemia subsequent to carbohydrate intake. Currently investigated agents include sitagliptin, vildagliptin, saxagliptin, linagliptin, and alogliptin.

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Unlabelled: Physician led collaborative drug therapy management utilizing clinical pharmacists to aid in the medication management of patients with hypertension has been shown to improve blood pressure control. With recommendations for lower blood pressures in patients with coronary artery disease, a cardiologist-pharmacist collaborative care model may be a novel way to achieve these more rigorous goals of therapy.

Objective: The purpose of this project was to evaluate this type of care model in a high cardiac risk patient population.

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Patients with type 2 diabetes and their physicians are often reluctant to begin insulin therapy--despite evidence of its efficacy. Here's help in overcoming this other form of "insulin resistance."

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Study Objective: To determine whether controlling systolic blood pressure (SBP), pulse pressure, and heart rate in the outpatient setting is associated with decreased hospital utilization in patients with heart failure and preserved ejection fraction (PEF).

Design: Retrospective medical record review.

Setting: University-affiliated medical center and outpatient clinics.

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Background: This study assessed diabetes out-patient care at a single institution in Medicare patients with significant health care expenditures and correlated the control of these patients with hospital admission rates and charges.

Methods: A retrospective review was performed at a university health sciences center's clinics and affiliated hospital. Medicare patients with Type 2 diabetes, >65 years, and hospitalized >1 in the past year with annual incurred Medicare charges of >$6,000 were included in the study.

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Background: This study evaluates the quality of care of a pharmacist-managed diabetes clinic focused on an indigent population and compares that quality of care to usual care in the same health care setting.

Methods: Two groups of subjects were evaluated by retrospective review of medical records. The experimental group (n = 47) consisted of patients whose care was facilitated by a clinical pharmacist (medication initiation and modification, laboratory and physical assessment) in addition to routine physician care.

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Patients with type 2 diabetes mellitus often begin treatment by taking oral agents, usually metformin or a sulfonylurea, and then progress to the combination of these two agents. Most patients often require three or more agents or a change to an insulin regimen. However, no guidelines are available to aid the clinician in the decision-making process for selecting the third agent.

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A diabetes education program for healthcare professionals evolved out of a series of discussions among healthcare providers. This group realized the importance and the necessity of developing a current knowledge base for themselves, their clients, and their clients' families. The target audiences for this program were physicians, nurses, pharmacists, and dietitians who could be eligible to work toward becoming a certified diabetes educator.

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Healthcare professionals need valuable up-to-date information on diabetes management and skills to treat and educate patients with diabetes mellitus. The Diabetes Education for Healthcare Professionals program was developed to provide healthcare professionals with current diabetes management skills. It was also designed to increase the number of certified diabetes educators in the area in which it was delivered.

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Background: The pharmacist's role in dispensing emergency contraception (EC) has become controversial due to the intersection of personal and professional ethics. Therefore, to examine the issue of EC availability, we surveyed a sample of West Texas pharmacists. West Texas is a religiously and politically conservative region where no methods of EC have been made available.

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Objective: To assess a model to screen minority, elderly, and at-risk individuals for diabetes, hypertension, and dyslipidemia in pharmacy and non-health care settings.

Design: Multicenter, prospective, observational trial.

Setting: 26 pharmacies and 4 non-health care settings.

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Clinical data suggest that thiazolidinediones--specifically, rosiglitazone and pioglitazone--may improve cardiovascular risk factors through multiple mechanisms. Low insulin sensitivity has been described as an independent risk factor for coronary artery disease and cerebrovascular disease. Patients with insulin resistance often have several known risk factors, such as obesity, dyslipidemia, and hypertension.

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Objective: To better understand exenatide's role in the treatment of type 2 diabetes, this analysis assessed its cost-effectiveness in comparison to an intermediate (NPH) and long-acting insulin (glargine). Exenatide is a recently approved medication for the treatment of type 2 diabetes for use in addition to frequently used oral diabetes medications.

Methods: Two studies were identified by a Medline search (1996-Oct 2005) that were similar in study duration, baseline glycemic control, population size, and primary outcomes to appropriately assess the cost-effectiveness of either insulin in comparison to exenatide on both glycemic and weight control.

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Objective: The objective of this study was to assess the effectiveness of pharmacist- managed dyslipidemia clinics at 2 Veterans Affairs medical centers since the release of the 2001 National Cholesterol Education Panel Adult Treatment Panel III (NCEP ATP III) guideline compared with the usual care (UC) provided by other health care professionals in the same setting.

Methods: Analysis was performed through retrospective chart review of patients with a diagnosis of dyslipidemia who received care in either the Amarillo or Lubbock, Texas, pharmacist-managed lipid clinics (LCs) or UC from a primary care physician. Data from medical charts were abstracted for dates of service from July 2001 to December 2003 for 115 patients selected randomly from LC rolls matched with 115 patients with a diagnosis of dyslipidemia selected randomly from UC.

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Objective: To provide an update on lipid management and recent modifications in cholesterol guidelines for use of hydroxymethylglutaryl coenzyme A reductase inhibitors (statins), specifically in patients with diabetes.

Data Sources: Studies and guidelines were identified through a MEDLINE search (1996-April 2005).

Study Selection And Data Extraction: Studies were selected for review if the primary treatment intervention was a statin, at least 4% of the study population held a diagnosis of diabetes, and diabetes subgroup analysis was available.

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Angiotensin receptor blockers (ARBs) have a pharmacological role in the treatment of heart failure through their blockade of the effects of angiotensin II. ARBs, however, lack the potential benefits of inhibiting the breakdown of bradykinin that is seen with ACE-Is. Historically, the medical literature assessing ARBs in the treatment of chronic heart failure have been short in duration and primarily focused on surrogate markers of disease severity.

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The frequency of type 2 diabetes mellitus is increasing at an alarming rate. Prediabetes, also referred to as impaired glucose tolerance (IGT) and/or impaired fasting glucose, is a major risk factor for development of type 2 diabetes mellitus. In addition, IGT has been associated with an increased risk of cardiovascular disease and mortality.

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Objective: To report a case of dose-dependent angioedema secondary to the use of the angiotensin-receptor blocker (ARB) valsartan.

Case Summary: A 64-year-old Hispanic woman presented with swelling of the lips shortly after an increase in her valsartan dose for uncontrolled hypertension. Other potential causes were not identified.

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The glycemic control of patients with diabetes in a physician-supervised, pharmacist-managed primary care clinic was compared with that of patients receiving standard care in the same health care system. We retrospectively analyzed the glycemic control of 87 men with type 1 or type 2 diabetes whose diabetes-related drug therapy was managed by clinical pharmacists compared with a control group of 85 similar patients whose care was not augmented by clinical pharmacists. Primary outcomes were differences in fasting blood glucose (FBG) and glycosylated hemoglobin (A1C) levels between groups.

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The third edition of guidelines from the National Cholesterol Education Program Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults (Adult Treatment Panel III [ATP III]) is discussed. The most recent classifications for low-density-lipoprotein (LDL) cholesterol, high-density-lipoprotein (HDL), total cholesterol, and triglycerides are provided. LDL cholesterol goals, cardiovascular risk assessment, therapeutic goals, and pharmacologic treatment options are discussed for both primary and secondary prevention of cardiovascular disease.

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