
Blood clots are a serious health problem, especially for older adults. When a clot forms in a deep vein, usually in the legs, it is called deep vein thrombosis.
If part of that clot travels to the lungs, it becomes a pulmonary embolism, which can be life-threatening. Together, these conditions are known as venous thromboembolism.
As people get older, the risk of developing these clots increases. Recovery can also be more difficult. Many older patients spend long periods in hospitals or care facilities after a clot, especially if the problem comes back again.
Preventing another clot is therefore very important, and doctors often prescribe blood-thinning medications for long-term use.
A new study has found that the type of blood thinner a patient takes may affect not only their medical outcomes but also how much time they can spend at home.
For many older adults, staying at home is one of the most important goals, as it means more independence and better quality of life.
The study, published in the American Journal of Hematology, was carried out by researchers from the Hinda and Arthur Marcus Institute for Aging Research at Hebrew SeniorLife. They looked at real-world data from more than 18,000 older adults in the United States who were treated for blood clots between 2015 and 2019.
The researchers compared three commonly used blood thinners: apixaban, rivaroxaban, and warfarin. Warfarin has been used for many years, while the other two are newer medications.
The results showed that patients who took apixaban had better outcomes in several important ways. They were less likely to have another blood clot or die within one year compared to those who took warfarin. They also had a lower risk of serious bleeding, which is a known side effect of blood thinners.
Another key finding was related to “home time.” This is a measure that looks at how many days a patient spends at home instead of in hospitals, emergency rooms, or nursing facilities. It also includes time lost due to death. Patients taking apixaban had more days at home than those taking warfarin.
This is important because it reflects what matters most to many older adults. Being at home often means feeling more comfortable, more independent, and closer to family.
The study also looked at frailty, which is a condition where a person becomes weaker and more vulnerable to illness. Frail older adults often have a harder time recovering from health problems and may respond differently to medications.
The researchers found that the benefits of apixaban were seen in both frail and non-frail patients, although the strongest effects were observed in those who were not frail. This suggests that the drug can be helpful across different levels of health, but individual factors still matter.
Rivaroxaban, another newer blood thinner, did not show clear advantages over warfarin in this study. In fact, patients taking rivaroxaban tended to lose more home time compared to those taking apixaban.
The lead author of the study, Dr. Chanmi Park, explained that treating older adults with blood clots can be complex. Doctors must balance the need to prevent new clots with the risk of bleeding and other side effects. This study provides helpful information to guide those decisions.
While the findings are encouraging, it is important to note that this was an observational study based on real-world data. This means it shows strong associations but cannot prove cause and effect in the same way as a controlled clinical trial.
Even so, the large number of patients and the focus on real-life outcomes make the results very valuable. They suggest that apixaban may offer a better balance of safety and effectiveness for many older adults.
In summary, this study shows that the choice of blood thinner can make a real difference in recovery after a serious blood clot. Apixaban appears to reduce complications and help patients spend more time at home.
However, treatment decisions should always be made with a doctor, taking into account each patient’s health, risks, and preferences.
If you care about wellness, please read studies about nutrients that could combat inflammation in older people, and essential foods for healthy aging.
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Source: Hebrew SeniorLife.


