neonatal sepsis (pneumonia, meningitis and bactermia) - USMLE Forums
USMLE Forums Logo
USMLE Forums         Your Reliable USMLE Online Community     Members     Posts
Home
USMLE Articles
USMLE News
USMLE Polls
USMLE Books
USMLE Apps
Go Back   USMLE Forums > USMLE Step 2 CK Forum

USMLE Step 2 CK Forum USMLE Step 2 CK Discussion Forum: Let's talk about anything related to USMLE Step 2 CK exam


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 04-17-2014
USMLE Forums Veteran
 
Steps History: CS Only
Posts: 219
Threads: 44
Thanked 44 Times in 33 Posts
Reputation: 54
Default neonatal sepsis (pneumonia, meningitis and bactermia)

MTB3 P332 says that the most common organisms in meningitis and bacteremia (the cause of sepsis after 23 hours [24hours of life I assume?] are staph aureus, E.coli, klebsiella and pseudomonas.

while early onset sepsis, pneumonia is the most common cause with organisms: GBS, Ecoli, H.influenzae and listeria.

from kaplan it says most common causes for sepsis in first month are GBS, Ecoli and listeria (HSV too) as the causes of sepsis without classifying into pneumonia and meningitis.

while this source says the most common causes for neonatal meningitis are in this order: GBS, Ecoli and listeria.
http://emedicine.medscape.com/articl...ew#aw2aab6b2b3

so the causes of pneumonia as mentioned on MTB3 are the causes of meningitis on the site. and which is what i recall from step one as well.

does anybody have solid information on what are the most common causes for neonatal sepsis?

thanks
Reply With Quote Quick reply to this message



  #2  
Old 04-17-2014
DrAGA's Avatar
USMLE Forums Guru
 
Steps History: Step 1 Only
Posts: 342
Threads: 47
Thanked 149 Times in 86 Posts
Reputation: 159
Default

i have same question cause from step 1 we know that MCC of neonatal meningitis is strep agalacticae.....so need more info please..
Reply With Quote Quick reply to this message
  #3  
Old 04-18-2014
USMLE Forums Addict
 
Steps History: 1+CK+CS
Posts: 198
Threads: 26
Thanked 175 Times in 79 Posts
Reputation: 185
Default

Quote:
Originally Posted by Faith-USMLE View Post
MTB3 P332 says that the most common organisms in meningitis and bacteremia (the cause of sepsis after 23 hours [24hours of life I assume?] are staph aureus, E.coli, klebsiella and pseudomonas.

while early onset sepsis, pneumonia is the most common cause with organisms: GBS, Ecoli, H.influenzae and listeria.

from kaplan it says most common causes for sepsis in first month are GBS, Ecoli and listeria (HSV too) as the causes of sepsis without classifying into pneumonia and meningitis.

while this source says the most common causes for neonatal meningitis are in this order: GBS, Ecoli and listeria.
http://emedicine.medscape.com/articl...ew#aw2aab6b2b3

so the causes of pneumonia as mentioned on MTB3 are the causes of meningitis on the site. and which is what i recall from step one as well.

does anybody have solid information on what are the most common causes for neonatal sepsis?

thanks

This is what I've found:

The age at presentation with meningitis will suggest both the probable organisms and their likely mode of acquisition. Presentation in the first week of life (early onset) and particularly in the first two days of life,reflects vertical transmission, while late onset infection suggests nosocomial or community acquisition. The corresponding organisms are different; early onset meningitis is more likely to be caused by group B streptococcus(GBS or S. Agalactiae), Escherichia coli , and Listeria monocytogenes, while late onset meningitis may be caused by other Gram negative organisms as well as staphylococcal species.

from: http://www.ncbi.nlm.nih.gov/pmc/arti...v088p0F173.pdf

It's very confusing because our sources are, to say the least, very inadequate ( KLN and MTBs).

I'll post more when I'll find more specific info
Reply With Quote Quick reply to this message
The above post was thanked by:
Faith-USMLE (04-18-2014)
 
  #4  
Old 04-18-2014
USMLE Forums Veteran
 
Steps History: CS Only
Posts: 219
Threads: 44
Thanked 44 Times in 33 Posts
Reputation: 54
Default

Thanks Vero
reading your reply reminded me that there's a similar topic in Ob section, perinatal infections:
1-GBS:
* early onset (hours to days of birth) is due to vertical transmission and leads to pneumonia and sepsis (50% mortality rate).
* late GBS related meningitis (after first week of life) is hospital acquired (25% mortality rate)
So if it says vertical transmission of GBS causes sepsis, it's a cause of meningitis?
2-HSV:

*can cause both pneumonia and meningoencephalitis (among other diseases).
*primary infection has viremia > risk of transplacental and during delivery transmission. if it's a recurrence, only risk of transmission during delivery.
Reply With Quote Quick reply to this message



Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the USMLE Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Medical School
Choose "---" if you don't want to tell. AMG for US & Canadian medical schools. IMG for all other medical schools.
USMLE Steps History
What steps finished! Example: 1+CK+CS+3 = Passed Step 1, Step 2 CK, Step 2 CS, and Step 3.

Choose "---" if you don't want to tell.

Favorite USMLE Books
What USMLE books you really think are useful. Leave blank if you don't want to tell.
Location
Where you live. Leave blank if you don't want to tell.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Child/Neonatal Meningitis saman49 USMLE Step 2 CK Forum 0 03-08-2014 04:26 AM
What type of jaundice in neonatal sepsis? Renaissance USMLE Step 2 CK Forum 2 08-28-2013 03:05 PM
Neonatal Meningitis candyblue USMLE Step 1 Forum 4 12-07-2012 08:28 PM
Neonatal Late Onset Sepsis tyagee USMLE Step 2 CK Forum 10 11-10-2012 02:57 PM
Causes of neonatal meningitis Krishna USMLE Step 1 Forum 3 01-23-2011 11:07 PM

RSS Feed
Find Us on Facebook
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

USMLE® & other trade marks belong to their respective owners, read full disclaimer
USMLE Forums created under Creative Commons 3.0 License. (2009-2014)