Heart scan curiosities 2

9. December 2006 William Davis (2)


This is an example of a so-called "hiatal hernia", meaning the stomach has migrated through the diaphragmatic hiatus into the chest--the stomach is literally in the chest. This example is an unusually large one. Hiatal hernias can cause chest pain, indigestion, and a variety of other gastrointestinal complaints. Heart scans are reasonably useful to screen for this disorder, though very small ones could escape detection by this method.

Sometimes, you can actually hear the gurgling of stomach contents (the common "growling" stomach) by listening to the chest. Large ones like this actually crowd your heart (the gray structure above the circled hernia), irritating it and even causing abnormal rhythm disorders. The dense dark material within the hernia represents lunch.

I would not advocate CT heart scans as a principal method to make a diagnosis, but sometimes it just pops up during a heart scan and we pass it on to the person scanned.
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  • Anonymous

    8/2/2007 5:42:00 PM |

    Awesome, just awesome.Brilliant blog that has helped me ALOT so I am eternally grateful. Phil

  • Anonymous

    10/4/2007 2:01:00 AM |

    I just had a heart scan. 44 year old female with family history of heart disease.  Both parents in 40's with heart attacks/by-pass surgery...My cardiologist ask if I had ever been diagnosed with a hiatal hernia and the scan looked somewhat like the one you show.  It looked like I had one Big Heart!  He told me to follow-up with my PCP.  I did, he is new for me and not sure I see eye-to-eye with him, but he insist a hernia can not show up on a heart scan, I told him, I saw it, I saw the scan, I saw the white circle...I have had GERD for 5-6 years now, nausea almost every morning on top of the reflux in the morning and my family always complain how long it takes me to eat! Guess what, I'm having an upper GI in the morning.  Thanks for this information...I thought maybe I was loosing my mind!

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Should you take Plavix?

Should you take Plavix?

22. April 2006 William Davis (2)
A question I get fairly frequently nowadays is, "Should I take Plavix?"

For the few of you who've managed to miss the mass advertising campaign for this drug on TV, USA Today, etc., Plavix is a platelet-blocking drug, known chemically as clopidogrel, that "thins" the blood and helps prevent blood clot formation in coronary arteries and carotid arteries, thus potentially reducing heart attack and stroke risk.

What if you have a heart scan score of, say, 450--should you take Plavix?

In general, no. First of all, aspirin and Plavix (generally taken together, since the effect of Plavix is incremental to that of aspirin) only block blood clot formation. They have no effect whatsoever on the rate of plaque growth. Aspirin and Plavix will neither slow it or increase it.

What they do is when a plaque ruptures like a little volcano and exposes its internal contents (inflammatory cells, fat, etc.--like a raw wound), a blood clot forms on top of the ruptured surface. If the clot is big enough, it can occlude the vessel and causes heart attack. Or, if it's a carotid artery, debris from the clot can break off and find its way headward to the artery controlling your speech or memory center. Aspirin and Plavix simply help inhibit clot formation once a plaque ruptures. That's it.

Interestingly, if you view any of Sanofi Aventis' commercials for Plavix, you'd think they came up with a cure for heart disease. It ain't true.

When is Plavix helpful? It's clearly an advantage after someone receives a coronary stent, drug-coated or uncoated;, after coronary bypass, particularly if certain metal punch devices are used to create the grafts in the aorta; and during and after heart attack. These are all situations in which blood clot formation is a forceful process. Blocking it helps.

In general, in asymptomatic people with positive heart scan scores at any level, we do not recommend taking Plavix. The Plavix people are extremely aggressive pushing their drug (hang around any medical office and see!) and, I believe, have gone overboard in promoting its benefits. Rarely, in someone with a very high heart scan score, say 2000 or more, we'll use Plavix for a period of a few months until lipids/lipoproteins and other risk measures are addressed, just as an added safety measure. But, in general, the great majority of people with some heart scan score or another do not receive it and I don't believe that they should.

As always, look beyond the marketing. The purpose of marketing is to increase profits, not to educate.
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  • Anonymous

    1/27/2009 5:11:00 AM |

    My father died of a heart attack on January 16, 2009 while taking Plavix. He has been taking this drug for a couple of years, and I believe that it killed him.

    Pharmaceutical companies, such as Bristol-Myers Squibb and Sanofi Aventis, who knowing sell medications which kill the people who are taking it should be criminally prosecuted!

    I’m mad as hell, and I’m looking for legal advice concerning this medication and how it may have caused my father’s death.

  • buy jeans

    11/3/2010 2:21:37 PM |

    When is Plavix helpful? It's clearly an advantage after someone receives a coronary stent, drug-coated or uncoated;, after coronary bypass, particularly if certain metal punch devices are used to create the grafts in the aorta; and during and after heart attack. These are all situations in which blood clot formation is a forceful process. Blocking it helps.

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