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Dehydration and Heart Attack; The Link. And ‘Sludgy Blood’!

From HCPLive

About half of a group is ischemic stroke patients were found to be dehydrated when they arrived at the hospital, a Johns Hopkins Comprehensive Stroke Center team reported—and they did poorly compared to the patients who arrived hydrated.

Presenting a study at the American Heart Association/American Stroke Association International Stroke Conference in Nashville, Tenn., Mona Bahouth, MD, a Johns Hopkins Hospital stroke fellow, said that the report suggests all stroke patients should get fluids.

The problem is that rehydration poses a risk of hypervolemia, which can put stress on the heart and cause fluid to back up in the lungs.

In the study, Bahouth and colleagues followed 168 patients admitted with ischemic stroke. They found that stroke condition worsened or did not improve in 42% of the dehydrated group, but that only 17% of the hydrated group worsened or did not improve.

The patients’ progress, or lack of it, was tracked with MRI scans, and NIHSS scores.

Discussing the results, Bahouth said it is already known that about 60% of stroke patients are dehydrated, and that the condition may in itself cause strokes. “When patients don’t drink enough water, their blood gets sludgy,” she said. That could mean that as it travels through the brain, this thicker blood flows slowly and can back up in narrowed or blocked blood vessels.

“The beauty here lies in the simplicity of this potential treatment,” she said, “Rehydration is cheap and can be given to people even in the most remote locations.” But that does not mean these patients should be told to immediately drink water after the onset of a stroke. That could lead to choking.

The research also did not resolve the question of whether the patients’ dehydration signaled other medical conditions that could have contributed to their tendency to have poorstroke outcomes.

Still, Bahouth added, in general, “as people get older they tend to avoid drinking enough water, partly because they don’t want to have to use the bathroom as often—particularly if they have a disability.” That reluctance to drink water could be contributing to stroke risk, she said.

The study found that dehydration in the group of patients followed was not linked to race, gender, ethnicity or diabetes status. Patients with kidney disease were not included in the study.


Ian: Hmmm. I relate to the bit about getting older and not wanting to pee so often.. but I made the choice. Pee more and drink enough. And yet the underlying question is whether consistent hydration supports stroke immunity.
From all we read.. especially the comment about sludgy blood – means to me that hydration is incredibly important!

Ian Blair Hamilton AlkaWayWe could take this question much farther. Your salt ratio relates to your ability to hold water. And then we can look at the effect of changed pH on the effect of water. I had the experience for most of my life of bloating with tap water or bottled water, but as soon as I began drinking high hydrogen Alkaline Water this all changed.

Just one other point I picked up.. I had never heard of hypervolemia. Obviously it only applies when someone is dehydrated and attempts fast rehydration, but surely a better answer is a daily program or target of hydration?

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