What is POTS and why is it more common now?
The amount of circulation disorder cases has tripled
Since the Covid-19 pandemic, there has been a rise in cases of postural orthostatic tachycardia syndrome (POTS). The circulation disorder mostly affects women, and while cases used to appear in older individuals, doctors are now seeing a rise in patients between the ages of 15 and 25. POTS can be debilitating and does not currently have a cure.
What is POTS?
POTS is a "condition that causes a number of symptoms when you transition from lying down to standing up, such as a fast heart rate, dizziness and fatigue," said The Cleveland Clinic. Reason being, "when you've got POTS and stand up, more blood than normal pools down in the lower half of your body," said Forbes. This causes your heart to beat faster to compensate. The condition affected between one and three million people prior to the pandemic, but a pre-printed study by Johns Hopkins said that instances have more than tripled, with approximately 6 to 7 million new cases. "The most common trigger of POTS is a viral infection," Svetlana Blitshteyn, a neurologist and the director of the Dysautonomia Clinic in Buffalo, New York, said to CBS News. "This includes viruses like influenza and parvovirus and Covid-19."
There has been a recent slew of diagnoses in teens and adults who were otherwise healthy. Specifically, highly-trained female athletes have been affected. "These patients are young people in their 20s, 30s and 40s who were healthy or had minor medical problems that didn't impact their lives before and now they are expressing extreme fatigue, dizziness, headache, inability to exercise and some are unable to work," Blitshteyn said. However, doctors are not quick to diagnose POTS. "Since POTS isn't technically life-threatening, if you're fatigued or fainting, have a racing heartbeat, a doc will likely scan you for other, perhaps more immediately dangerous, things before considering POTS," said Self.
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Who is most affected?
Anyone can get POTS, but it is "primarily seen in women that are of reproductive age," said The University of Utah. The reason for this is not yet clear, but some conditions associated with POTS also primarily affect women, like hypermobile Ehlers-Danlos syndrome and autoimmune diseases. Women are also thought to be "more vulnerable to inflammation," said The Washington Post. "It could reflect the damage that comes with being hit with a virus unknown to humans until 2020. And the stress associated with repetitive physical exhaustion could leave athletes at risk."
Athletes may be predisposed to the condition. Some of those diagnosed also had hypermobility, meaning they have a greater-than-average range of motion, which is beneficial in a number of sports. But hypermobility could also be making blood vessels "more stretchy," impacting heart rate and blood pressure, Sara Gould, an orthopedic surgeon, said to the Post. In addition, some POTS patients also have a "condition called myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), which is characterized by post-exertional malaise (PEM) — a situation in which symptoms worsen after exercise," said National Geographic.
The severity of POTS can vary greatly from person to person. "Patients with severe symptoms might have to limit their lifestyles and daily activities a great deal, to the point where they can't work a full-time job that involves a lot of standing or walking," said Richard Shelton, a cardiologist at the University of Utah Health. However, for many, symptoms are manageable through exercise, diet changes, sleep changes, and in some cases, medication.
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Devika Rao has worked as a staff writer at The Week since 2022, covering science, the environment, climate and business. She previously worked as a policy associate for a nonprofit organization advocating for environmental action from a business perspective.
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