In this section we will look at some topics related to the health and well being of our senior citizens. Each topic is written by expert geriatricians based on real life experiences.
Polypharmacy in Older Adults
Polypharmacy is defined as the regular intake of at least five medications. It is very common in older adults. There are several risk factors that can lead to polypharmacy; patient related factors include having multiple medical conditions managed by multiple subspecialist physicians, having chronic mental health conditions, and residing in a long-term care facility. One must reduce the intake of drugs by asking the doctor the necessity of a particular drug. In the book by Dr. Prasun Chatterjee (Health and well being in late life, chapter: Challenges of Multimorbidity and Polypharmacy in Older Adults), he has explained the issue of polypharmacy by the case of Kamala Sarkar, who was actually a patient of his. Mrs. Kamala had visited several doctors with her extensive list of complaints. She has a prescription of 19 medicines (polypharmacy) along with her. Her medicine included three types of antihypertensive; three groups of drugs for lowering blood sugar levels; three medications for managing arthritis; one multivitamin; one medicine each for calcium, vitamin D, Vitamin B12 and depression along with sleeping pills and three medicines for coronary heart diseases. She was on consultation with many doctors and each healthcare provider has provided organ specific medicines based on history of complaints. Unfortunately, clinical practice is restricted to organ specific and disease specific guidelines. Patient like Mrs. Kamala, suffering from multimorbidity, would visit multiple specialists for separate problems, ending up with multiple drugs, even if the specialist follows evidence based medicine. Based on this example, one should inform the doctor about all the medicine intake and ask the doctor about any kind of reaction of the medicines which are being continued.
Consequences of polypharmacy:
There are many negatively associated consequences with polypharmacy. Specifically, the burden of taking multiple medicines has been associated with an increased risk of adverse drug events (ADEs), drug interactions, medication non-adherence, reduced functional capacity and multiple geriatric syndromes.
- Increased Healthcare Costs: polypharmacy contributes to health care costs to both the patients and the healthcare system. A retrospective cohort study found that polypharmacy was associated with an increased risk of taking a potentially inappropriate medication and an increased risk of outpatient visits, and hospitalization with an approximate 30% increase in medical costs.
- Adverse Drug Events: It has been reported that 35% of the outpatients and 40% of the hospitalized elderly experience ADE. As one might expect, common drug classes associated with ADEs include anticoagulants, NSAIDs, cardiovascular medications, diuretics, antibiotics, and hypoglycemic medications.
- Drug-Interaction: older adults with polypharmacy are predisposed to drug-interactions. Drug-drug interactions are a frequent cause of preventable ADEs and medication-related hospitalizations. Thus practitioners should keep the possibility of a drug-drug interaction in mind when prescribing any new medications.
- Medication Non-adherence: It is linked to complicated medication regimens and polypharmacy in older adults. Medication non-adherence is associated with potential disease progression, treatment failure, hospitalization, and ADEs, all of which could be life-threatening.
- Functional status: Polypharmacy has been associated with functional decline in older patients. In a prospective study of community-dwelling older adults, increased prescription medication use was associated with diminished ability to perform instrumental activities of daily living (IADLs) and decreased physical functioning. . In patients who have reported falling in the past year, higher medication use was found to be associated with functional decline. Prescribers should be aware of the risk of functional decline in patients taking multiple medications.
- Cognitive Impairment: Cognitive impairment, seen with both delirium and dementia, has been associated with polypharmacy. A study in hospitalized older adults reported that the number of medications was a risk factor for delirium.
- Falls: Falls are associated with increased morbidity and mortality in older adults and may be precipitated by certain medications. A study comparing patients who have not fallen compared to those who have fallen once and those multiple times, reported that the number of medications was associated with an increased risk of falls. Given the serious consequences of falls in older adults, caution should be used in prescribing new medications to those who are at risk of falling.
- Urinary Incontinence: It is yet another problem that is associated with the intake of multiple medicines. Many medications are known to exacerbate urinary incontinence, so a medication review should be performed to evaluate both the number of medications as well as the specific types of medications a patient is taking.
- Nutrition: Polypharmacy has also been reported to affect a patient’s nutritional status. A prospective cohort study found that 50% of those taking 10 or more medications were found to be malnourished or at risk of malnourishment .
I want to go to park for a walk, but my leg muscles are not strong enough to take even a few steady steps. I am weak, shaky and slow. I am not depressed but I am not happy either. The doctor assures me that my heart, lungs and organs are totally fine. I know I should eat a proper diet and do exercises, but I do not feel motivated to do anything except to just escape this life. The only thing that is remaining in me is my beautiful mind that urges me each day to love all and pray for all. I often wonder whether these are the features of a fast decaying mind or body. Or these are just the perceptions and emotions of a frail person.
The above are the words of a 87 years old person, a retired banker. He wrote a letter to Dr. Prasun Chatterjee, Department of Geriatric Medicine, AIIMS, New Delhi, expressing his thoughts and emotions. Ageing is probably and individualistic and unique experience, which happens to occur through various biological events throughout the person’s life.
What is active aging? Active aging is the process of optimizing opportunities for health, participation and security in older adults in order to enhance quality of life as people age. Active aging applies to both individuals and population groups. It allows people to realize their potential for physical, social, and mental well being throughout the life course and to participate in society according to their needs, desires and capacities, while providing them with adequate protection, security and care when they require assistance. The active ageing model as presented by the World Health Organization (WHO) encompasses six groups of determinants, each one including several features:
- Availability and use of health and social services
- Behavioral determinants
- Personal determinants
- Physical environment
- Social determinants
- Economic determinants
Health refers to physical, mental and social well being as expressed in WHO definition of health. Thus, in an active aging framework, policies and programs that promotes mental health and social connections are as important as those that improve physical health status.
WHO defines healthy ageing as “the process of developing and maintaining the functional ability that enables wellbeing in older age.” Functional ability is about having the capabilities that enable all people to be and do what they have reason to value. This includes a person’s ability to:
- meet their basic needs;
- learn, grow and make decisions;
- be mobile;
- build and maintain relationships; and
- Contribute to society.
Functional ability consists of the intrinsic capacity of the individual, relevant environmental characteristics and the interaction between them.
Intrinsic capacity comprises all the mental and physical capacities that a person can draw on and includes their ability to walk, think, see, hear and remember. The level of intrinsic capacity is influenced by several factors such as the presence of diseases, injuries and age-related changes.
Environments include the home, community and broader society, and all the factors within them such as the built environment, people and their relationships, attitudes and values, health and social policies, the systems that support them and the services that they implement. Being able to live in environments that support and maintain one’s intrinsic capacity and functional ability is key to healthy ageing.