James W. Cooper

Adverse Outcomes Associated with Inappropriate Drug Use in Nursing Homes

BACKGROUND: Little empirical evidence exists regarding the influence and outcomes of inappropriate medication use among elderly nursing home residents. OBJECTIVE: To identify the prevalence of inappropriate medication use among elderly patients in Georgia nursing homes using the Beers criteria and identify the relationship between inappropriate drug use and the likelihood of an adverse health outcome. METHODS: A cohort design was used to review 1117 patient medical records in 15 Georgia nursing homes with a high risk of polypharmacy. Prevalence of inappropriate medication use among elderly patients, as defined by the Beers criteria, was estimated. The adverse health outcomes of hospitalizations, emergency department visits, or deaths were identified from Medicaid claims data. RESULTS: A total of 519 (46.5%) patients received at least one inappropriate medication and 143 (12.8%) patients experienced at least one adverse health outcome. Logistic regression revealed that the total number of medications taken (OR 1.139, 95% CI 1.105 to 1.173) significantly increased the likelihood of receiving an inappropriate drug, while having a diagnosis of “dementia” (OR 0.748, 95% CI 0.565 to 0.991) decreased the likelihood. Inappropriate medication use increased the likelihood of experiencing at least one adverse health outcome more than twofold (OR 2.34, 95% CI 1.61 to 3.40). Propoxyphene use alone was significantly associated with the occurrence of an adverse health outcome (OR 2.39, 95% CI 1.54 to 3.71). CONCLUSIONS: Inappropriate drug use was common in our study cohort. Inappropriate use of medication in the elderly, particularly propoxyphene, is associated with a higher risk of adverse health outcomes.

Polypharmacy in the Aged

SummaryElderly patients use more medications than younger patients and the trend of increasing drug use continues through 80 years of age. Studies conducted in a variety of settings have shown that patients over 65 years of age use an average of 2 to 6 prescribed medications and 1 to 3.4 nonprescribed medications.Success of pharmaceutical and medical research has resulted in an abundance of effective drugs to treat acute and chronic conditions. Most research resulting in the development and marketing of these medications has been directed at proving the efficacy and safety of single drug products. Little research has been directed to determine the safety and efficacy of combining multiple medications to treat concurrent conditions in a single patient. It is known that the use of multiple medications increases the risks of adverse drug reactions, drug-drug interactions, and makes compliance with medication regimens more difficult.Numerous studies have been conducted to better understand factors that are associated with increased drug use in elderly people. Studies also have been conducted to identify interventions that can improve drug treatment for the elderly, and reduce polypharmacy.Multiple drug use is common in older people, and may give rise to drug related problems. Methods to reduce the risks of polypharmacy include patient education, physician education, such as education and feedback systems, and regulatory intervention. Continual drug and disease monitoring is essential.

Probable Adverse Drug Reactions in a Rural Geriatric Nursing Home Population: A Four-Year Study

OBJECTIVE: To quantitate probable adverse drug reactions (ADRs) in a geriatric nursing homes population.

Erythromycin-Induced Digoxin Toxicity:

The potential interaction between certain antibiotics and digoxin has been discussed in the literature; however, few cases of actual erythromycin-induced digoxin toxicity have been reported. We present a case in which an 86-year-old woman who was taking digoxin 0.25 mg/d developed probable digoxin toxicity after the administration of erythromycin for the treatment of otitis media and streptococcal pharyngitis. Her digoxin concentration increased from a trough of 1.9 to 5.1 nmol/L six days after the erythromycin was started. Digoxin was discontinued and restarted approximately six weeks later when the patients atrial fibrillation and congestive heart failure recurred. Her digoxin dose at this time was 0.125 mg/d and resulted in steady-state concentrations of 1.2, 1.4, and 1.2 nmol/L over the next year. Erythromycin inhibition of Eubacterium lentum, which converts digoxin into digoxin-reduction products in the gut, is the proposed mechanism of this interaction.

Bullous Pemphigoid Associated with Captopril

Captopril is commonly prescribed to patients with hypertension and congestive heart failure. Adverse dermatological reactions have been reported in about ten percent of patients receiving captopril. This case report describes a 77-year-old white woman who developed bullous pemphigoid associated with the use of captopril. The patient presented with bullous eruptions localized on the palms of both hands about 50 days after captopril 25 mg bid was started. Biopsy report was consistent with bullous pemphigoid. Captopril therapy was discontinued and the lesions healed after oral corticosteroid therapy was initiated.

Behavioral cues to expand a pain model of the cognitively impaired elderly in long-term care

Background The purpose of this study was to determine the relationship between hypothesized pain behaviors in the elderly and a measurement model of pain derived from the Minimum Data Set-Resident Assessment Instrument (MDS-RAI) 2.0 items. Methods This work included a longitudinal cohort recruited from Medicare-certified longterm care facilities across the United States. MDS data were collected from 52,996 residents (mean age 83.7 years). Structural equation modeling was used to build a measurement model of pain to test correlations between indicators and the fit of the model by cognitive status. The model evaluates the theoretical constructs of pain to improve how pain is assessed and detected within cognitive levels. Results Using pain frequency and intensity as the only indicators of pain, the overall prevalence of pain was 31.2%; however, analysis by cognitive status showed that 47.7% of the intact group was in pain, while only 18.2% of the severely, 29.4% of the moderately, and 39.6% of the mildly cognitively impaired groups were experiencing pain. This finding supports previous research indicating that pain is potentially under-reported in severely cognitively impaired elderly nursing home residents. With adjustments to the measurement model, a revised format containing affective, behavioral, and inferred pain indicates a better fit of the data to include these domains, as a more complete measure of the pain construct. Conclusion Pain has a significant effect on quality of life and long-term health outcomes in nursing home residents. Patients most at risk are those with mild to severe cognitive decline, or those unable to report pain verbally. Nursing homes are under great scrutiny to maintain standards of care and provide uniform high-quality care outcomes. Existing data from federally required resident surveys can serve as a valuable tool to identify indicators of pain and trends in care. Great responsibility lies in ensuring pain is included and monitored as a quality measure in long-term care, especially for residents unable to communicate their pain verbally.

Psychotropic and psychoactive drugs and hospitalization rates in nursing facility residents

The purpose of this study was to determine if there were any differences in hospitalization rates due to total psychoactive drug “load” between those using and not or formerly using psychotropic and psychoactive medications in a skilled nursing facility; to determine if the diagnosis of dementia and the change in use and load of psychotropic and psychoactive drugs influenced hospitalization rates. Methods An observational retrospective cohort study was conducted of patient chart, facility disposition changes and consultant pharmacist reports data from a skilled nursing facility of more than 100 beds. Some177 patients resident for 30 or more days over a 19 month period of 2978 patient- months data were tabulated. A monthly repeated- measures assessment method that incorporated all conditions, diseases and medication changes was done on each resident to determine patient demographics, medication usage, and hospitalizations. Results The rates of hospitalization ranged from 0.04 to 0.07 per patient/month for any psychoactive usage in those with and without dementia as a diagnosis. The rate of hospitalization during the study period for those with no current psychotropic nor regular psychoactive usage was 0.02 and 0.03/pt./month for those respectively with and without the diagnosis of dementia, yet 86% of this sample had used psychotropics or other psychoactive drugs before the period of observation. Conclusion Preliminary evidence is offered that suggests psychotropics and psychoactive drugs and the total “load” of these drugs may be associated with an increase in the rate and risk of all hospitalizations within a single skilled nursing facility.

The Consultant Pharmacist and Analgesic/Anti-Inflammatory Drug Usage in a Geriatric Long-Term Facility*

The contribution of a consultant pharmacist to a 33‐month study of analgesic and anti‐inflammatory drug usage by 210 elderly long‐term patients was evaluated by a fifth‐year pharmacy student. In the 143 patients who used analgesics and anti‐inflammatory agents, significant changes were noted, viz, decreased use of codeine (p = .002); increased use of acetaminophen (p = .003) and anti‐inflammatory agents (p = .020); increased regular scheduling of aspirin and acetaminophen; and an overall decrease in total drug usage from 7.2 to 4.8 drugs per patient. No effect was noted on the number of analgesics per patient, and the percentage of aspirin or propoxyphene or acetaminophen combinations used. A protocol was established for pain therapy, including a system of stop orders for propoxyphene and codeine.

The Effectiveness of Auxiliary Prescription Labels: A Pilot Study

Affixed auxiliary prescription labels are widely used in the practice of pharmacy because they supposedly provide the patient with pertinent information that is not contained within the prescription signature. Yet, whether the labels are effective is not known, nor is it known whether the labels elements, such as color, form, and logo, affect perception of the written text. Sound scientific analyses of these questions are limited. Therefore, a pilot study involving a series of experiments was designed to determine whether individual perception of pertinent information is affected by the use of affixed auxiliary prescription labels. The second objective of this study was to evaluate how color and logo differences affected perception of the labels written text. Participants were selected for the experiments after being screened for color blindness, corrected vision, and, in some cases, previous pharmacy employment. Subjects viewed labels affixed to prescription vials via a two-channel tachistoscope. The tachistoscopic methodology measured perception, and its accuracy was verified through a forced-choice instrument. Results from the pilot study were threefold: (1) a sound scientific analysis found affixed auxiliary labels to be effective, (2) significant variance could be attributed to both individual and subject differences, and (3) the unique effects of color and logo could not be determined.

A study of longitudinal data examining concomitance of pain and cognition in an elderly long-term care population.

Purpose To examine if a concomitant relationship exists between cognition and pain in an elderly population residing in long-term care. Background/significance Prior research has found that cognitive load mediates interpretation of a stimulus. In the presence of decreased cognitive capacity as with dementia, the relationship between cognition and increasing pain is unknown in the elderly. Patients and methods Longitudinal cohort design. Data collected from the Minimum Data Set-Resident Assessment Instrument (MDS-RAI) from the 2001–2003 annual assessments of nursing home residents. A covariance model was used to evaluate the relationship between cognition and pain at three intervals. Results The sample included 56,494 subjects from nursing homes across the United States, with an average age of 83 ± 8.2 years. Analysis of variance scores (ANOVAs) indicated a significant effect (P < 0.01) for pain and cognition, with protected t test revealing scores decreasing significantly with these two measures. Relative stability was found for pain and cognition over time. Greater stability was found in the cognitive measure than the pain measure. Cross-legged effects observed between cognition and pain measures were inconsistent. A concomitant relationship was not found between cognition and pain. Even though the relationship was significant at the 0.01 level, the correlations were low (r ≤ 0.08), indicating a weak association between cognition and pain. Conclusion Understanding the concomitance of pain and cognition aids in defining additional frameworks to extend models to include secondary needs, contextual factors, and resident outcomes. Cognitive decline, as with organic brain diseases, is progressive. Pain is a symptom that can be treated and reduced to improve resident quality of life. However, cognition can be used to determine the most appropriate method to assess pain in the elderly, thereby improving accuracy of pain detection in this population.