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Biomedical subjects

Lori M Dickerson

Publications and source records attributed to Lori M Dickerson.

17 recordsLinked to original sources

Management of hypertension in older persons.

Antihypertensive therapy has been shown to reduce morbidity and mortality in older patients with elevated systolic or diastolic blood pressures. This benefit appears to persist in patients older than 80 years, but less than one third of older patients have adequate blood pressure control. Systolic blood pressure is the most important predictor of cardiovascular disease. Blood pressure measurement in older persons should include an evaluation for orthostatic hypotension. Low-dose thiazide diuretics remain first-line therapy for older patients. Beta blockers, angiotensin-converting enzyme inhibitors, angiotensin-receptor blockers, and calcium channel blockers are second-line medications that should be selected based on comorbidities and risk factors.

Adrenergic beta-Antagonists↗

Suggested guidelines for pharmacotherapy curricula in family medicine residency training: recommendations from the Society of Teachers of Family Medicine Group on Pharmacotherapy.

Rational drug use has increasingly received public policy attention in efforts to maintain quality health care at lower costs. Prescribing habits are developed during residency training, and education regarding rational drug use should be an integral part of the residency curricula. Considering that many medical errors in family medicine are related to incorrect medication management, there is need for a focused education in pharmacotherapy. This paper outlines suggested guidelines for pharmacotherapy curricula in family medicine residency training, as recommended by the Society of Teachers of Family Medicine Group on Pharmacotherapy. A pharmacotherapy curriculum should include common conditions managed in family medicine, as well as general principles of pharmacotherapy. This should allow for repeated exposure to core topics over a 3-year cycle and be delivered in various settings (didactic teaching, longitudinal active learning, point-of-care education, and rotations). The curriculum should apply and evaluate pharmacotherapy education according to the six core competencies of the Accreditation Council for Graduate Medical Education (ACGME). Although physician faculty can be responsible for pharmacotherapy education, a clinical pharmacist is uniquely qualified to provide this service. Overall, family medicine residents need comprehensive instruction in pharmacotherapy to develop rational prescribing habits. A structured pharmacotherapy curriculum may assist in achieving this goal and in meeting the ACGME core competencies for residency training.

Curriculum↗

The effect of ethnicity on outcomes in a practice-based trial to improve cardiovascular disease prevention.

BACKGROUND: Health disparities are a growing concern. Recently, we conducted a practice-based trial to help primary care physicians improve adherence with 21 quality indicators relevant to the primary and secondary prevention of cardiovascular disease and stroke. Although the primary concern in that study was whether patients in intervention practices outperformed those in control practices, we were also interested in determining whether minority patients were more, less, or just as likely to benefit from the intervention as non-minorities. METHODS: Baseline (fourth quarter 2000) and follow-up (fourth quarter 2002) data were obtained from 3 intervention practices believed to have at least 10% minority representation. Two practices had a black (non-Hispanic) population sufficient for analysis, while the other had a sufficient Hispanic population. Within each practice, changes in the 21 indicators were compared between the minority patient population and the entire patient population. The proportion of measures in which minority patients exhibited greater improvement was calculated for each practice and for all 3 practices combined, and comparisons were made using non-parametric methods. RESULTS: For all black patients, the observed improvement in 50% of 22 eligible study indicators was better than that observed among all white patients in the same practices. The average changes in the study indicators observed among the black and white patients were not significantly different (p = 0.300) from one another. Likewise for all minority patients in all 3 practices combined, the observed improvement in 14 of 29 (43.3%) eligible study indicators was better than that observed among all white patients. The average changes in the study indicators among all minority patients were not significantly different from the changes observed among the white patients (p = 0.272). CONCLUSIONS: Among 3 intervention practices involved in a quality improvement project, there did not appear to be any significant disparity between minority and non-minority patients in the improvement in study indicators.

Journal Article↗

Antibiotics for the secondary prevention of ischemic heart disease: a meta-analysis of randomized controlled trials.

BACKGROUND: Infections have been suspected in the pathogenesis of ischemic heart disease (IHD) for more than 100 years. Chlamydia pneumoniae has been identified in atherosclerotic specimens, and in some studies antibody titers to C pneumoniae have been related to the risk of myocardial infarction. The numerous clinical trials that have studied the use of antibiotics in the secondary prevention of IHD have had conflicting results. METHODS: This study is a meta-analysis of the published randomized controlled trials on the secondary prevention of IHD with antibiotics. Studies included in the analysis were limited to those studies that used antibiotics effective against C pneumoniae, enrolled patients with known IHD, and examined clinical outcomes related to IHD. Inclusion in the analysis was limited to well-designed randomized controlled trials that met inclusion criteria established by an expert panel. RESULTS: Nine published studies, with a total of 11 015 participants, were identified that met the criteria for this meta-analysis. Four of the studies reported a benefit from antibiotics, whereas 5 found no effect. A funnel plot of the published studies did not suggest the existence of other unpublished data. The combined effect found no benefit from antibiotics in the prevention of cardiovascular events in subjects with known IHD (relative risk, 0.94 [95% confidence interval, 0.86-1.03]) or mortality (relative risk, 0.94 [95% confidence interval, 0.79-1.12]). CONCLUSION: In patients with known IHD, macrolide antibiotics for C pneumoniae did not result in a statistically significant reduction in recurrent cardiac events or mortality over 3 months to 3 years.

Anti-Bacterial Agents↗

Evaluation and management of nonulcer dyspepsia.

When no organic cause for dyspepsia is found, the condition generally is considered to be functional, or idiopathic. Nonulcer dyspepsia can cause a variety of symptoms, including abdominal pain, bloating, nausea, and vomiting. Many patients with nonulcer dyspepsia have multiple somatic complaints, as well as symptoms of anxiety and depression. Extensive diagnostic testing is not recommended, except in patients with serious risk factors such as dysphagia, protracted vomiting, anorexia, melena, anemia, or a palpable mass. In these patients, endoscopy should be considered to exclude gastroesophageal reflux disease, peptic or duodenal ulcer, and gastric cancer. In patients without risk factors, consideration should be given to empiric therapy with a prokinetic agent (e.g., metoclopramide), an acid suppressant (histamine-H2 receptor antagonist), or an antimicrobial agent with activity against Helicobacter pylori. Treatment of patients with H. pylori infection and nonulcer dyspepsia (rather than peptic ulcer) is controversial and should be undertaken only when the pathogen has been identified. Psychotropic agents should be used in patients with comorbid anxiety or depression. Treatment of nonulcer dyspepsia can be challenging because of the need to balance medical management strategies with treatments for psychologic or functional disease.

Anti-Bacterial Agents↗

Hypertension management and control in primary care: a study of 20 practices in 14 states.

STUDY OBJECTIVE: To describe the management and control of hypertension in primary care practice. DESIGN: Retrospective medical record review. SETTING: Twenty primary care practices in 14 states. PATIENTS: Thirteen thousand forty-seven patients with hypertension. MEASUREMENTS AND MAIN RESULTS: Diagnoses, drugs prescribed, and blood pressure readings were extracted from the electronic medical record at each practice in the study. For patients with hypertension and comorbid diagnoses, the most recent blood pressure and antihypertensive drugs prescribed were determined. Analyses assessed the blood pressure control rates and the association between control and demographic variables, frequency of visits to the practice site, and pharmacologic treatment patterns. Among the 20 practices in the study, 13,047 patients had received a diagnosis of hypertension and their blood pressures had been measured within the previous 12 months. One third of the patients had comorbid coronary heart disease, diabetes mellitus, heart failure, and/or renal insufficiency. The most recent blood pressure reading was below 140/90 in half the patients. Control was associated with age 60 years or younger, female sex, more than one visit to the practice, more than one comorbidity, and type of practice (p<0.01, logistic regression). Wide variability was noted among practices in the use of multiagent antihypertensive therapy, and in antihypertensive therapy by drug class. Among patients without comorbidity treated with one drug, systolic blood pressure did not differ significantly by drug class. Diastolic blood pressure was slightly lower in patients prescribed thiazide diuretics than in those prescribed angiotensin receptor blockers (p=0.03, analysis of covariance). CONCLUSION: Blood pressure control in primary care practice can be much better than reports usually indicate. Good control in this study was not due to specific drug choice, but instead may have been due to regular monitoring of blood pressure and motivation of the practice to improve patient care.

Adult↗

Premenstrual syndrome.

Premenstrual syndrome, a common cyclic disorder of young and middle-aged women, is characterized by emotional and physical symptoms that consistently occur during the luteal phase of the menstrual cycle. Women with more severe affective symptoms are classified as having premenstrual dysphoric disorder. Although the etiology of these disorders remains uncertain, research suggests that altered regulation of neurohormones and neurotransmitters is involved. Premenstrual syndrome and premenstrual dysphoric disorder are diagnoses of exclusion; therefore, alternative explanations for symptoms must be considered before either diagnosis is made. The disorders can manifest with a wide variety of symptoms, including depression, mood lability, abdominal pain, breast tenderness, headache, and fatigue. Women with mild symptoms should be instructed about lifestyle changes, including healthy diet, sodium and caffeine restriction, exercise, and stress reduction. Supportive strategies, such as use of a symptom diary, may be helpful in diagnosing and managing the disorders. In women with moderate symptoms, treatment includes both medication and lifestyle modifications. Dietary supplements, such as calcium and evening primrose oil, may offer modest benefit. Selective serotonin reuptake inhibitors such as fluoxetine and sertraline are the most effective pharmacologic agents. Prostaglandin inhibitors and diuretics may provide some relief of symptoms. Only weak evidence supports the effectiveness of gonadotropin-releasing hormone agonists, androgenic agents, estrogen, progesterone, or other psychotropics, and side effects limit their use.

Adult↗

Comparison of changes in blood pressure measurements and antihypertensive therapy in older, hypertensive, ambulatory care patients prescribed celecoxib or rofecoxib.

STUDY OBJECTIVE: To determine if changes in blood pressure and changes in class or dosing of antihypertensive drugs were significantly different in patients treated with celecoxib versus rofecoxib, two cyclooxygenase (COX)-2 inhibitors. DESIGN: Retrospective cohort study. SETTING: Thirty-one ambulatory care practices that shared an electronic medical record. PATIENTS: Nine hundred sixty men and women over age 55 years with stable hypertension. INTERVENTION: Patients had to have at least a 30-day supply of celecoxib or rofecoxib (any dose) prescribed between July 1, 1999, and June 30, 2000. MEASUREMENTS AND MAIN RESULTS: Patients were followed for 6 months, and logistic regression and survival models were used to compare outcomes between groups while adjusting for confounders. Baseline characteristics of 517 patients receiving celecoxib and 443 receiving rofecoxib were similar. No significant differences were observed, regardless of the COX-2 inhibitor prescribed, in the proportion of patients whose systolic blood pressure increased by 20 mm Hg, whose diastolic blood pressure increased by 15 mm Hg, or who were prescribed a new class of antihypertensive drug. Compared with patients taking celecoxib, those taking rofecoxib were significantly more likely (odds ratio 1.68, 95% confidence interval 1.09-2.60) to have had the dosage of their antihypertensive drug increased and also the dosage increased sooner (p<0.05). New-onset cardiac and renal comorbidity, number of physician visits, and changes in body weight and laboratory values were not significantly different between the groups. CONCLUSION: No significant differences in blood pressure changes or in the proportion of patients who were prescribed a new class of antihypertensive drug were found between rofecoxib- and celecoxib-treated patients. However, significantly more rofecoxib-treated patients had the dosage of their existing antihypertensive drug increased compared with those receiving celecoxib.

Aged↗

Acute management of atrial fibrillation: Part I. Rate and rhythm control.

Atrial fibrillation is the arrhythmia most commonly encountered in family practice. Serious complications can include congestive heart failure, myocardial infarction, and thromboembolism. Initial treatment is directed at controlling the ventricular rate, most often with a calcium channel blocker, a beta blocker, or digoxin. Medical or electrical cardioversion to restore sinus rhythm is the next step in patients who remain in atrial fibrillation. Heparin should be administered to hospitalized patients undergoing medical or electrical cardioversion. Anticoagulation with warfarin should be used for three weeks before elective cardioversion and continued for four weeks after cardioversion. The recommendations provided in this two-part article are consistent with guidelines published by the American Heart Association and the Agency for Healthcare Research and Quality.

Adrenergic beta-Antagonists↗

Acute management of atrial fibrillation: Part II. Prevention of thromboembolic complications.

Family physicians should be familiar with the acute management of atrial fibrillation and the initiation of chronic therapy for this common arrhythmia. Initial management should include hemodynamic stabilization, rate control, restoration of sinus rhythm, and initiation of antithrombotic therapy. Part II of this two-part article focuses on the prevention of thromboembolic complications using anticoagulation. Heparin is routinely administered before medical or electrical cardioversion. Warfarin is used in patients with persistent atrial fibrillation who are at higher risk for thromboembolic complications because of advanced age, history of coronary artery disease or stroke, or presence of left-sided heart failure. Aspirin is preferred in patients at low risk for thromboembolic complications and patients with a high risk for falls, a history of noncompliance, active bleeding, or poorly controlled hypertension. The recommendations provided in this article are consistent with guidelines published by the American Heart Association and the Agency for Healthcare Research and Quality.

Anticoagulants↗

Special olympics, special athletes, special needs?

Based upon the current study, the review of the literature, and our experience, the preparticipation physical examination for Special Olympics is an opportunity for physicians of all specialties to assist and encourage a group of athletes with special physical and emotional characteristics not found in other athletes. The physician should review the medical condition of the athlete (including prescribed medications and their potential side effects), the physical demands of the proposed activity, and the presence of volunteers to assist the athlete when necessary. Full or limited participation should be recommended in most cases. "No participation" should only apply to unstable medical conditions or situations that would place the athlete at risk for injury despite activity modification and close supervision.

Adolescent↗

The state of clinical pharmacy practice in family practice residency programs.

BACKGROUND: Clinical pharmacists have been involved with family practice residencies for more than 20 years. This survey was designed to evaluate the current state of clinical pharmacy services in the family practice residency program (FPRP) in the United States. METHODS: All FPRPs were contacted to identify clinical pharmacists involved with their programs. These pharmacists were directed to a password-protected Web address where the survey was posted. Completed surveys were submitted on-line, and data were retrieved for analysis. RESULTS: Of the 579 residencies, 155 (26.7%) acknowledged 174 clinical pharmacists working within their program. Responses were received by 130 of the pharmacists (74.7% response rate). These pharmacists held academic appointments in both their institution's school of pharmacy (80%) and the school of medicine (53.2%). The mean age of the respondents was 36.5 +/- 8.2 years, and the mean salary was $66,000 (range $46,000-$125,000). A majority of the pharmacists received their funding from a single source, and 32.2% received full salary support from the FPRP. The respondents spent more than half of their time with the residency program. Overall, their time was divided into teaching responsibilities (42.7%), patient care activities (37.1%), research (12.1%), administrative functions (11.8%), and drug distribution (< 5%). CONCLUSIONS: Pharmacists are actively involved in 26.7% of FPRPs. This survey demonstrates increased salary support from the FPRP in comparison to past surveys. Additionally, more pharmacists hold academic appointments within schools of medicine.

Adult↗

Nortriptyline effective for smoking cessation.

Nortriptyline (Pamelor), in combination with weekly behavioral therapy, is effective in helping highly motivated smokers to quit. The medication may be an alternative for patients who cannot tolerate or do not benefit from bupropion. Given the high motivation of the group and the extensive behavioral therapy they also received, results are not likely to be as good in typical practice.

Comment↗

Using the electronic medical record to enhance the use of combination drugs.

The objective of this study was to increase combination drug prescriptions through the use of electronic point-of-care reminders, thereby maintaining quality while decreasing medication costs. The electronic medical record (EMR) was used to identify all patients who were potential candidates for one of the following 3 currently available combination drugs: fluticasone-salmeterol, amlodipine-benazepril, or glyburide-metformin. Point-of-care electronic reminders were attached to the medication record of the EMR for each patient, and providers were asked to consider using the available combination medication. Of the patients who had electronic reminders attached to their charts and were seen at the clinic during the study period, 47 of 175 were switched to a combination medication. A cost-savings analysis showed a total annual savings of dollars 6,159.30. Point-of-care reminders are a simple and effective tool for quality-improvement interventions. Combination drugs may play an important role in controlling medication costs.

Drug Combinations↗

Glycemic control in medical inpatients with type 2 diabetes mellitus receiving sliding scale insulin regimens versus routine diabetes medications: a multicenter randomized controlled trial.

PURPOSE: Hospitalized patients with type 2 diabetes mellitus traditionally receive insulin on a sliding-scale regimen, but the benefits of this approach are unclear. The purpose of this study was to compare the effects of the sliding scale insulin regimen with those of routine diabetes medications on hyperglycemia, hypoglycemia and length of hospitalization in diabetic patients hospitalized for other conditions. METHODS: This was a multicenter, randomized controlled trial conducted in family medicine inpatient services. One hundred fifty-three patients with type 2 diabetes mellitus hospitalized for other conditions were randomized to receive routine diabetes medications (control) or the combination of a standard sliding-scale insulin regimen and routine diabetes medications (intervention). The outcome measures included frequency of hyperglycemia and hypoglycemia (glycemic events), and length of hospitalization. RESULTS: No differences were identified between treatment groups in the frequency of glycemic events. In the intervention group, 33.3% of patients developed hyperglycemia compared to 34.6% in the control group (P = .87). Six patients developed hypoglycemia in the intervention group, compared with 7 in the control group (P = .83). There was no difference in length of hospitalization (P = .86). Regardless of treatment assignment, patients receiving intermediate-acting insulin (OR, 2.8; 95% CI, 1.2-6.5), those with blood glucose values greater than 250 mg/dL at baseline (OR, 6.3; 95% CI, 2.3 - 17.2) and those receiving corticosteroids (OR, 9.1; 95% CI, 3.1 - 27.0) were more likely to have glycemic events. CONCLUSIONS: The use of the sliding scale insulin regimen in combination with routine diabetes medications does not affect the rate of hyperglycemia, hypoglycemia or length of hospitalization in patients with type 2 diabetes mellitus hospitalized for other conditions.

Aged↗