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An additional antihypertensive or more of the same for better control of BP in elderly?
What should be done if patients have blood pressure that's still too high even though they take medicine to control it.
Should we increase the dose of one of their existing drugs, or add a new one, to bring down their pressure and lower their risk of future health problems.
According to a new study, time should not be wasted for elaborate reasoning: Either add a drug or maximize the dose of existing drugs, whichever seems to fit best with the patient's current treatment, clinical state, and preference. The researchers found that both strategies decrease blood pressure, but adding a new medication has a very slim advantage over increasing the dose of an existing medication, despite some of the patients being unable to stay on the new medication.
The findings, published in the Annals of Internal Medicine by a team from the University of Michigan and the VA Ann Arbor Healthcare System, focus on patients whose initial systolic blood pressure was above 130 mm Hg.
By looking back at VA and Medicare data, the researchers were able to see patterns in treatment and blood pressure readings over time, in a kind of natural experiment. All the patients were taking at least one blood pressure medication at less than the maximum dose and had a treatment intensification at the start of the study period, indicating that their physicians thought they needed more intense treatment.
Because intensification of blood pressure treatment can come with risks -- whether a drug interaction if a new drug is added, or an electrolyte imbalance with high doses, or fainting and falling if a person's pressure gets too low -- such decisions must be carefully made.
This is the first time a study has directly compared the effects of the two approaches, said first author Carole E. Aubert, M.D., M.Sc., a general internist from Bern University in Switzerland who performed much of the research while a scholar at the U-M Institute for Healthcare Policy and Innovation.
"There's increasing guidance on approaches to starting treatment in older adults, but less on to the next steps to intensify treatment, especially in an older and medically complex population that isn't usually included in clinical trials of blood pressure medication," she said. "How can we increase medications safely in a population already taking many medications for hypertension and other conditions."
"Treatment guidelines do suggest starting treatment with multiple medications, and clinicians are comfortable with an approach of 'starting low and going slow' in older patients," said senior author Lillian Min, M.D., M.S.H.S. "But these results show that in older patients, we have further opportunity to tailor choices in intensifying drug therapy for hypertension, depending on the individual patient's characteristics."
She continued, "Is the patient more likely to stick to a simpler regimen? Then increase an existing medication. Or is the blood pressure very high and the clinician is more concerned about reducing it? Then consider starting a new medication now." Min is a geriatrician at the Division of Geriatrics and Palliative Care at Michigan Medicine, U-M's academic medical center, and the VA Ann Arbor Healthcare System Geriatric Research Education and Clinical Center.
For older adults who already take a range of medications, the added complexity of having to take one more kind of pill may be too much. The risks of polypharmacy, the term for taking multiple medications, are already well-known from other research, Min said. In fact, Medicare covers an annual medication review with a pharmacist for many older adults who take many drugs.
The research was funded by the National Institute on Aging and the Veterans Health Administration. In addition to Aubert and Min, the research team included Jeremy B. Sussman, M.D., M.S.; Timothy P. Hofer, M.D., M.Sc.; William C. Cushman, M.D.; and Jin-Kyung Ha, PhD.
Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email:Â editorial@medicaldialogues.in. Contact no. 011-43720751
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751