Calcium Channel Blockers Co-prescribed with Loop Diuretics: A Potential Marker of Poor Prescribing?

Prescribing cascades are where a drug adverse reaction is wrongly attributed to the emergence of a new condition, which leads to further drug prescribing. This promotes polypharmacy, adverse drug reactions and therapeutic burden. An example of a prescribing cascade is the co-prescribing of loop diuretics to treat the peripheral oedema caused by calcium channel blocker (CCB) drugs. Although well recognised, this is still a combination of medications taken by millions of people worldwide. CCBs have no prognostic benefit in heart failure and have an absolute risk increase for oedema of around 8-18% (number needed to harm 6-13). In the treatment of hypertension, they also increase the risk of oedema and a new diagnosis of heart failure without having any major advantages over alternative drugs. The best way to manage the oedema caused by CCBs is to switch to an alternative medication. Only where this is not possible or fails to achieve therapeutic goals would the CCB-loop diuretic combination appear to be justified. In many cases, therapeutic practice could be improved by targeting people on CCB-loop diuretic combinations for medication review. This could improve quality of life and reduce polypharmacy, adverse drug reactions, therapeutic burden and financial costs for millions of people worldwide.

New horizons in deprescribing for older people.

Deprescribing has gained interest recently, driven by an ageing population seeing an increasing number living with multiple long-term conditions. This, coupled with disease-specific guidelines derived from clinical trials in younger people, has led to an increase in exposure to polypharmacy and the associated therapeutic burden. Older people, especially those living with frailty, tend to experience lower efficacy of these medications along with a higher risk of drug adverse effects. Explanations for these differences include the physiological effects of frailty, drug-drug interactions, drug-disease interactions and reduced medication adherence. Adverse drug reactions often go unnoticed and can trigger further prescribing. Certain medications have been recognised as potentially inappropriate for people with frailty, yet their use remains common. Evidence suggests that many older people are open to the concept of reducing medications. Deprescribing should be based around a shared decision-making approach. Trials to date have suggested that it can often be achieved without harm. To date, there are few data to support improvements in hospitalisation or mortality rates. However, there is some evidence that it may reduce polypharmacy, improve medication adherence, reduce financial costs and improve quality of life. In the future, it will be necessary to grow the evidence base and improve public and clinician awareness of the potential benefits of deprescribing. It will require excellent team working and communication between all of those involved in the prescribing and administration of medications, also supported by improved healthcare informatics. Non-pharmacological approaches will need to be promoted. Fewer drugs is not less care.

Anticholinergic Drugs for Overactive Bladder in Frail Older Patients: The Case Against.

Urinary incontinence (UI) is a common and disabling problem among older people. Anticholinergic drugs (ADs) are a pharmacological option recommended for overactive bladder or mixed UI when non-pharmacological approaches have failed. However, UI is a more prevalent and complex condition in frail older people and to simply assume that AD actions are the same across all age groups would be wrong. This article reviews evidence for the efficacy and safety of these drugs, especially when prescribed for frail older people. Although ADs have a small but statistically significant benefit for UI in non-frail people, the vast majority choose to discontinue treatment because they feel that the beneficial effects do not outweigh the burden of taking the medication. Not only are the most frail older people more likely to experience adverse effects but there is also no evidence that these drugs are effective for UI. In addition, there is a mounting body of evidence that they impair cognitive function. The continued use of ADs in frail older people simply does not hold water.

Vitamin D: too much testing and treating?

There is clinical uncertainty as to the testing of serum 25--Hydroxy vitamin D (25[OH]D) concentrations and when to use high-dose supplementation. Data show that there has been a rapid increase in the number of tests performed within the Northumbria Healthcare NHS Foundation Trust over the past 8 years and an increase in high-dose supplementation over the past 5 years. We performed a retrospective analysis of the 25(OH)D test requests over the period from January to -October 2017. A total of 17,405 tests were performed in this time period. The overall average concentration was 57.5 nmol/L and this figure was similar across age groups, although a larger proportion of patients aged over 75 had a concentration <25 nmol/L. Test requests were classified into 'appropriate', 'inappropriate' and 'uncertain' categories based on current expert opinion. We found that between 70.4% and 77.5% of tests could be inappropriate, depending on whether the 'uncertain' categories of falls and osteoporosis are considered to be justified. Tiredness, fatigue or exhaustion was the reason for testing in 22.4% of requests. We suggest that a more rational approach to testing, and subsequent treating, could lead to reductions in costs to the healthcare system and patients.

Non-convulsive status epilepticus: a practical approach to diagnosis in confused older people.

Non-convulsive status epilepticus (NCSE) presents with minimal seizure activity clinically, but with evidence on EEG. It is a recognised cause of delirium in older people, but prevalence estimates vary widely. As delirium is a common presentation in older people and because NCSE is potentially reversible, an improved diagnostic ability in this group could be highly beneficial. EEG testing is required to make a definitive diagnosis, but this may be difficult due to access to testing, patient adherence and result interpretation. NCSE has two commonly recognised forms: complex partial status epilepticus (CPSE) and absence status epilepticus (ASE). Clinical features associated with NCSE in older people presenting with confusion include a reduction in level of arousal; aphasia or interrupted speech; myoclonus or subtle jerking; staring; automatisms; perseveration or echolalia; increased tone; nystagmus or eye deviation; emotional lability; disinhibition and anosagnosia. Risk factors include female sex, a history of epilepsy or a tonic-clonic seizure around the time of onset, and recent discontinuation of benzodiazepines. A practical approach to the diagnosis of NCSE in older people is suggested based upon the presence of clinical features suggestive of NCSE and local access to EEG testing.

Hyperosmolar non-ketotic hyperglycaemia: an important and reversible cause of acute bilateral ballismus.

An 83-year-old lady with type 2 diabetes mellitus was admitted to hospital with pneumonia. After 3 days of oral amoxicillin she developed ballism-choreiform movements of all four limbs. Her serum glucose and osmolality were raised. She had no factors suggestive of genetic or iatrogenic causes. A CT scan of the brain revealed bilateral putamen hyperintensities. She was started on tetrabenazine and subcutaneous insulin, which led to complete resolution of her symptoms.

Joint geriatric and psychiatric wards: a review of the literature.

Joint geriatric/psychiatric wards are a potential solution to improving care of older patients with both psychiatric and medical illnesses in acute hospitals. A literature search using Medline, PsycINFO, Embase and CINAHL between 1980 and 2010 was carried out for information about joint wards for older people. Thirteen relevant papers were identified. These wards share common characteristics and there is evidence that they may reduce length of stay and be cost-effective, but there are no high-quality randomised controlled trials. Further research is needed, particularly regarding cost-effectiveness.

Neurological and cognitive impairments detected in older people without a diagnosis of neurological or cognitive disease.

Advanced age is associated with the finding of abnormalities on neurological and cognitive assessment. This review aims to identify studies that evaluated community samples of patients without a history of neurological disease and attempts to combine these data. While neurological signs were common, they were not universal and should not be considered an inevitable component of ageing. Additionally, they are associated with an increased risk of multiple adverse outcomes including functional decline and death. Therefore they should not be considered benign. Cognitive changes detected in studies that examined healthy older adults were only mild. More pronounced change suggests the development of dementia or mild cognitive impairment (a precursor to dementia). Changes in either neurological or cognitive examination in older adults should be considered abnormal and due to underlying disease. They should be investigated and treated in a similar way to abnormalities detected in younger individuals.

Intermediate care for older people in the U.K.

Intermediate care (IC) has been government policy for implementation in the U.K. for almost 10 years. It was hoped that it would help free up acute hospital resources. However, admission rates continue to rise and are rising fastest in those over the age of 75. Many different models of IC have been tried. Typically, outcomes are very similar to traditional hospital care and they tend to be met with high patient satisfaction. Yet there is no evidence that they reduce acute hospital use or that they are cost efficient. Maybe it is time to rethink our national strategy on this issue?

Diagnosis and management of urinary tract infection in hospitalized older people.

OBJECTIVES: To compare the diagnosis and management of urinary tract infection (UTI) in hospitalized older people with clinical criteria and therapeutic guidelines. DESIGN: A retrospective case series of emergency hospital admissions collected over an 18-month period. SETTING: An acute general hospital in northwest England. PARTICIPANTS: Two hundred sixty-five patients aged 75 and older with a diagnosis of UTI at hospital discharge. MEASUREMENTS: Data relating to age, sex, presenting complaint, admission and discharge destinations, background comorbidities and medications, investigations performed, treatment given, length of stay, and complications were obtained using chart review. RESULTS: Of the 265 patients (mean age 85.4) the overdiagnosis of UTI was common, with 43.4% of patients not meeting criteria. Only 32.1% of patients overall had any urinary tract symptoms (48.7% in the UTI group). Of the non-UTI group, 12 (10.4%) had urinary tract symptoms with a negative urine culture, 43 (37.4%) had asymptomatic bacteriuria (ASB), and 60 (52.2%) had neither urinary tract symptoms nor bacteriuria. Treatment given varied greatly. The mortality rate was 6.0%, and the average length of stay was 29.9 days (median 17.0, range 1-192). Complications were frequent, including Clostridium difficile diarrhea (8%), falls (4%), methicillin-resistant Staphylococcus aureus infection (3%), and fracture (2%). CONCLUSION: More-reliable criteria are needed to aid the diagnosis of UTI in hospitalized older people. Better adherence to clinical management guidelines may improve outcomes.