{"id":381,"date":"2018-07-01t12:30:14","date_gmt":"2018-07-01t12:30:14","guid":{"rendered":"\/\/www.iolishoes.com\/?page_id=381"},"modified":"2021-07-02t23:03:27","modified_gmt":"2021-07-02t13:03:27","slug":"pyloris-normal","status":"publish","type":"page","link":"\/\/www.iolishoes.com\/pyloris-normal\/","title":{"rendered":"pyloris normal"},"content":{"rendered":"\t\t
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<\/span>pyloric stenosis or infantile hypertrophic pyloric stenosis (ihps)<\/span><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/span>description<\/span><\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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  • pyloric stenosis or infantile hypertrophic pyloric stenosis (ihps) is gastric outflow obstruction caused by hypertrophy of the muscular layers in the pyloris.<\/li>
  • hypertrophy and hyperplasia of the 2 muscular layers of the pylorus leads to lengthening and thickening of the pyloric canal. both of these are readily seen on ultrasound.<\/li><\/ul>

    cause<\/strong><\/em><\/p>

    • whilst no specific inherited gene has been identified, there is a strong familial tendancy.<\/li>
    • some environmental factors such as nitric oxide and gastric hyperacidity have been suggested as contributing factors also.<\/li><\/ul>

      treatment<\/strong><\/em><\/p>

      • treatment is generally surgical.the ramstedt pyloromyotomy (named after the original surgeon who described the technique in 1912) has a high success rate with very few complications.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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        <\/span>clinical presentation<\/span><\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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        • the typical presentation is a neonate with projectile vomiting, failure to thrive and unsettled.<\/li>
        • there may be suggestion of constipation but a baby with ihps will produce very little faeces due to the gastric obstruction.<\/li>
        • on examination the hypertrophied pylorus has been described as a firm epigastric lump similar to an olive, or the tip of your nose.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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          <\/span>normal anatomy<\/span><\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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          measure the length of the pyloric canal (black arrow).<\/p>

          the muscle thickness also must be measured (blue arrow)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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          rotate the probe 90degrees to view the pylorus in transverse.<\/p>

          measure the transverse muscle diameter.<\/p>

          .<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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          <\/span>normal ultrasound appearances<\/span><\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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          a longitudinal view of the normal pylorus<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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          ultrasound view in transverse, the thin rim of muscle is typical of a normal pylorus.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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          a 2nd helpful finding, is that the hypertrophied pylorus is generally displaced to lie subjacent to the gallbladder. this is an indicator only and care must be taken that a full stomach is not the cause for the displaced pylorus.
          (ref: “pylorus subjacent to the gallbladder: an additional finding in hypertrophic pyloric stenosis”. authors:deborah levine md1, david c. wilkes md2, roy a. filly. md32 dec 2005 doi: 10.1002\/jcu.1870230706)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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          ultrasound of the normal pylorus, distant to the gall bladder.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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          ultrasound image of water in the pyloric canal.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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          ultrasound of a complex material (milk) passing through the pyloric canal.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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          <\/span>treatment<\/span><\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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