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Old 04-24-2011
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Lungs Lung Aspiration Anatomy

what most common site of aspiration in lung (which lobe) in these two case

1- during upright position

2- during supine position


about upright it's sure lower lobe

but about supine position, am not sure
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Old 04-24-2011
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I guess it's right upper lobe.
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Old 04-24-2011
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I think that for supine it's usually the superior segment of the right lower lobe
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Old 04-24-2011
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the site of aspiration is gravity dependent.
in standing or sitting position: rt lower lobe (in sme cases lower lobes of both lungs)
in supine position: rt upper lobe
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Old 04-24-2011
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Warning!

upright or sitting -----> posterobasal segment of Rt lower lobe

supine -----> superior segment of Rt lower lobe

lying down on Rt side ----> Rt middle sement of Rt LL OR
posterior segment or Rt upper lobe
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Old 04-24-2011
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Arrow Rasheed posted about this

Please read here;
Aspiration localisation

-
-
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Old 04-24-2011
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guys i am confused because i remember in step1 in usmle world

they said in supine position aspiration in upper segment of lower lobe


now i am studying step 2 ck i found in kaplan note Internal Medicine

page 195 , lung abscess they write in supine aspiration in posterior segment in upper lobe


i am confused and guess what this fact is high yield in exam step 1.
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I think that the right answer for the supine position is the R upper lobe. That's what is also common in clinical practice.
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Old 04-24-2011
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Quote:
Originally Posted by kemoo1985 View Post
guys i am confused because i remember in step1 in usmle world

they said in supine position aspiration in upper segment of lower lobe


now i am studying step 2 ck i found in kaplan note Internal Medicine

page 195 , lung abscess they write in supine aspiration in posterior segment in upper lobe


i am confused and guess what this fact is high yield in exam step 1.
"In patients who aspirate while in a recumbent position, the most common sites of involvement are the posterior segments of the upper lobes and the apical segments of the lower lobes (Fig. 1), whereas in patients who aspirate in an upright or semirecumbent position, the basal segments of the lower lobes are usually affected."

In: Marik, Paul E. Aspiration pneumonitis and aspiration pneumonia. The New England Journal of Medicine. 2001. 344 (9): 665-71.
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dr.dhruvdesai (03-15-2012), ElizabethNYC (04-24-2011), kemoo (04-24-2011), Mondoshawan (04-24-2011), singapur_md (04-24-2011)



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