female athletes and ibuprofen

NSAID Painkillers and Arrhythmia

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A report from Denmark receiving a lot of press lately indicates a connection between the use of NSAID painkillers and an increased risk for a type of arrhythmia called atrial fibrillation. NSAIDs range from the common over-the-counter painkillers like ibuprofen, naproxen, also, caproxen, ketoprofen, dexibuprofen, piroxicam, and tolfenamic acid, and older prescription COX 2 inhibitors such as: diclofenac, etodolac, nabumeton, and meloxicam to the newer prescription COX 2 inhibitors like: celecoxib, rofecoxib, valdecoxib, parecoxib, and etoricoxib.

The researchers identified an increased risk of atrial fibrillation associated with NSAID use. Since atrial fibrillation is mostly a disease of older adults, the press that followed, focused on this relationship. Because of the study’s design, the press reports were completely appropriate, in older adults NSAID use, particularly the newer COX 2 inhibitors, were linked to a higher rate of atrial fibrillation.

The study was one of those large, registry-based, analyses of prescription and hospital records, which by definition include mostly in older adults. The primary endpoints were whether the person had a hospital or physician diagnosed case of atrial fibrillation and whether they also utilized NSAIDs. The study did not tabulate frequency of use or dosage to determine if more frequent use of NSAIDs or higher dosages increased the risk for atrial fibrillation. It simply backed into its findings using the diagnostic codes and prescription fulfillment, as is common in epidemiology and in most of medicine; diagnosis plus prescription equals relative risk. Easy, peasy, but not particularly useful as far as I am concerned.

As a woman, a mom and a women’s health researcher, I know that young women use NSAIDs cyclically, every month, month in and month out for years and years and often at high doses, to manage menstrual and endometriosis pain. What is their risk for NSAID based arrhythmia?  As an athlete, I also know that female and male athletes, are prone to using NSAIDs with stunning regularity. What is their risk for an NSAID based arrhythmia?  As a researcher, I know that women are more frequently prescribed psychotropics for anxiety or panic, for periods of rapid, fluttering heart beats, could these be NSAID based, undiagnosed arrythmias?  And if a young, apparently healthy, woman is diagnosed with atrial fibrillation, or any other arrhythmia, would anyone consider a connection between her arrhythmia to her use of NSAIDs? I doubt it, and therein lay the problem with this type of research, and indeed, the entire disease-medication model of modern medicine. It is woefully incomplete, highly misleading, and it tacitly and often explicitly excludes women’s health issues in research.

Postscript

This research was first published in November 2013. A quick search to see if additional studies had been completed to address the risks of atrial fibrillation in younger adults, women and/or athletes, found nothing. However, one of our favorite heart doctors posted this article on the dangers of NSAID use in athletes. It appears that NSAID use increases inflammation and dehydration – not good. Consider again, the chronic and regular use of women who rely in NSAIDs for menstrual pain relief and the female athlete who utilizes NSAIDs not only to reduce menstrual pain, but also, to reduce training pain. What is her risk?

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Image by Petr from Pixabay.

This article was first published in May 2017. 

Exercise, Ibuprofen and Your Gut

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Ibuprofen and NSAIDs of other brands are used frequently by athletes around the world. Commonly referred to as Vitamin I, many athletes believe ibuprofen improves performance by extending the duration of pain free training or competition, despite evidence to the contrary.

A recent flurry of studies on male athletes indicates exercise induces a type of gut injury commonly seen in patients post surgery called splanchnic hypoperfusion or inadequate blood flow to the gut, kidney and liver. The abdominal distress common with intense training or competition, is really a state of reduced blood flow to the gut. The reduction in blood flow makes sense given the biological predilection to funnel energy away from digestion and metabolism during periods of fight or flight, even those that are self-induced.

GI hypoperfusion causes all sorts of mostly minor injuries, including general GI dysfunction, increased inflammation, increased permeability of endotoxins, but also, can cause more severe ischemic events – the complete cessation of blood flow to a particular abdominal region.  Repeated periods of hypoperfusion may cause more damage.

To counter the pain associated with GI hypoperfusion and training in general, athletes often self-dose with ibuprofen. Research indicates that ibuprofen increases the GI damage and does not improve performance. In fact, ibuprofen users often experience more pain, abdominal and otherwise, and perform more poorly.

Consistently, the research on ibuprofen use by athletes is conducted with male athletes. What about about female athletes? More specifically, how does regular, though cyclical, often high dose ibuprofen use to relieve menstrual pain, affect GI function and athletic performance in female athletes? Are female athletes more susceptible to splanchnic hypoperfusion and the ensuing endotoxemia? Does the use of ibuprofen worsen the abdominal injury or perhaps even worsen the menstrual pain as time passes? Research on pain tolerance suggests that ibuprofen does not work at all for many women, despite the fact that women are the largest users of ibuprofen for a range of predominantly female conditions. Similarly, research on analgesic response across the menstrual cycle demonstrates clear cycle-related changes in analgesic effectiveness. Given the high usage rates of ibuprofen in women, especially athletic women, it would seem relevant to investigate gender differences in ibuprofen effectiveness and gut damage.

If you have research on these topics, please send them to us. We’d like to know and our readers would like to know.

Photo: by Dirk Hansen (Flickr) [CC-BY-2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons