Heart scan curiosities 3


Note the shape of the chest in this 64-year old man. The front of his chest (upper portion of scan) is concave. In other words, if you were looking at this man (shirtless, of course) face to face, his chest would bow inward, rather than the usual outward configuration. The official name for this is “pectus excavatum”.

Compare this to the normal chest in the second image, in which the chest is convex. Face to face, the chest would bow slightly outward.

What does it matter? The pectus excavatum in and of itself has no importance, just a curiousity. (I personally find this surprising, given the fact that the heart actually appears squashed by the sternum, or chest wall.) However, it is commonly associated with a “floppy” mitral valve (also called mitral valve prolapse), a common congenital disorder of the mitral valve often accompanied by a slender build, loose joints, and even a nervous disposition. Occasionally, in its more severe forms, the aorta is also enlarged. (This man’s aorta is not enlarged.)

So, while we can’t actually visualize the mitral valve by a CT heart scan, we can surmise that he likely has a floppy mitral valve, is slender, is probably a nervous sort, and has long limbs with loose joints. He probably required braces as a child, since many people have a phenemenon of “crowded teeth”. The roof of his mouth, or hard palate, probably unusually high up in the mouth. He probably has a “weak chin”, meaning a less prominent protuberance of his chin. His fingers and toes are likely unusually long and slender.

It could mean that some attention and exploration of how floppy his mitral valve might be could be useful, e.g., an ultrasound or echocardiogram. He might even require oral antibiotics at the time of any oral or some gastrointestinal procedures, since floppy valve are more susceptible to blood infections when potentially “dirty” orifices are instrumented.

All that from a heart scan!



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6 Responses to Heart scan curiosities 3

  1. Soundhunter says:

    hmmm. Me again, commenting twice.

    My 5 month old daughter has “pectus excavatum “, the docs said it’s mild and won’t show when she’s an adult, they only seemed concerned with it for cosmetic reasons.

    I also have thought that the roof of her mouth seemed “deeper” or higher I guess you could say, than my other daughter’s was in infancy. But, 5 monther with pectus excavatum doesn’t have slender fingers, though she is quite long, repeated ultrasounds showed she had long legs. Is she possibly at higher risk for heart problems as an adult? Why wouldn’t 2 different family docs know this, or tell me about it?

  2. Dr. Davis says:

    An ultrasound of the heart, or echocardiogram, would settle the question. It’s a harmless test that requires just a few minutes. If your daughter’s doctor won’t order it, find one that will.

  3. Mo D. says:

    I’m saddened but not surprised that a doctor would call pectus excavatum just a curiosity. I have quite a number of heart and lung ailments from my PE. Had my doctor felt differently about PE when I was a kid and had suggested surgery, I would have suffered less than I have to having the surgery in my 30s. They say the teen years are the best time for surgical repair of PE. So yes, PE does cause heart and lung problems in adults. At least this adult.

  4. Anonymous says:

    Here’s a relevant cite:
    Cardiovascular function following surgical repair of pectus excavatum: a metaanalysis.

    http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=16899852&query_hl=2&itool=pubmed_docsum

  5. Paul Höppener MD Phd says:

    I am a 69 year old retired fysician.With a moderate congenital pectus excavatum. For more than 10 years I suffered from complaints like shorness of breath, fatigue and arythmia.Even a catheter ablation has been performed 4 years ago to stop Supraventricular tachycardia of 220.min. After 3 months a more moderate tachycardia returned. My complaints where posture dependent: bending or pressure on the upper abdomen or the pectus cavity did increase the problems.
    CT showed cardiocompression!
    To go short: after corrective surgery (Ravitch) my complaints have totally disappeared. I could stop with all medicines, can walk uphill agian and cycle with proper speed. Reborn without reincarnation.
    Lesson: symptomatic pectus excavatum can also happen to senior people an dcorrective surgery is worth while.
    See also: http://www.spesweb.nl/SPES_English.htm

  6. buy jeans says:

    It could mean that some attention and exploration of how floppy his mitral valve might be could be useful, e.g., an ultrasound or echocardiogram. He might even require oral antibiotics at the time of any oral or some gastrointestinal procedures, since floppy valve are more susceptible to blood infections when potentially "dirty" orifices are instrumented.

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