Tehran University of Medical Sciences
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Intl. Congress form | International Congress Report | International Congress Report For Faculty | 8th world congress of the world society for pediatric infectious diseases (WSPID)

8th world congress of the world society for pediatric infectious diseases (WSPID)
The Report of 8th world congress of the world society for pediatric infectious diseases (WSPID) by Dr.Samileh Noorbakhsh
Application Code :
306-0114-0085
 
Created Date : Tuesday, December 24, 2013Update Date : Thursday, January 16, 2014IP Address :37.114.235.220
Submit Date : Thursday, January 16, 2014Email : samileh_noorbakhsh@yahoo.com
Personal Information
Name : Samileh
Surname : Noorbakhsh
School/Research center : Pediatric Infections Disease Research Center (PIDRC)
If you choose other, please name your Research center : Research center of pediatric infectious diseases
Possition : Associate professor
Tel : +98-21-66516049
E-mail : samileh_noorbakhsh@yahoo.com
Information of Congress
Title of the Congress : 8th world congress of the world society for pediatric infectious diseases (WSPID)
Title of your Abstract : EVALUATION THE AGREEMENT BETWEEN QUANTIFERON-TB ASSAY AND TUBERCULIN SKIN TEST IN TB INFECTED CASES
country : South Africa
From : Tuesday, November 19, 2013
To : Saturday, November 23, 2013
Abstract(Please copy/paste the abstract send to the congress) : Objective : Compare the agreement between theQuantiferon TB assay and the 5-TU dose of purifiedprotein derivative (PPD) in the diagnosis of recent TB infection in house hold contact of of cases with proven active pulmonary TB in a BCG-vaccinated population. 

Materials and Methods
A cross-sectional analytic study (2009-2011) upon 59 recent household contacts of active pulmonary TB (bacteriologically proven) selected . Each child who tested positive on the PPD was referred for medical evaluation. Results of QuantiFERON-TB assay and the PPD test compared in cases. P-values < 0.05were considered statistically significant.
Results
Cases (N=59 ) aged between 1-69 years;Mean:.42±17.84 years .42.7% (54) of cases were male ; 57.6% (66) were female . family size was 1-8 persons ;mean: 3.61-0.929. Overall, Induration size for PPD test was between 0-40 mm; mean :7.56 ±6.66 mm. 
The overall agreement between the PPD and the QuantiFERON-TB assay in studied cases was fair to good.( = 0.556)
a significant difference observed between cases with positive PPD (3.97±2.295 mm) and negative PPD(0.85±0.261mm) in mean of Quantiferon -TB assay (T=2.301;P =0.025)..PPD test in compare with Quantiferon -TB assay had sensitivity=57.1%, specifity=86.6%, Positive Predictive Value (PPV) =57.1 %, Negative Predictive Value (NPV) =86.6% ; positive likelihood ratio+ (LR+=4.29 );negative likelihood ratio-(LR- =0.49)

Conclusions
It seems that Quantiferon -TB assay had greater specifity in compare with PPD and is a better indicator of therisk of M tuberculosis infection than PPD in Iranian cases as an intermediate tuberculosis-burden country with a BCG-vaccinated population. It might reflect recent ratherthan remote TB infections. Adding the Quantiferon -TB assay to conventional PPD test (low sensitivity=57 %) is useful for definite diagnosis of TB infection in high risk groups (household contacts of active pulmonary TB) .
Keywords of your Abstract : Quantiferon-TB
Acceptance Letter :
The presentation : Poster
The Cover of Abstract book :
Published abstract in the abstract book with the related code :
Where has your abstract been indexed? : ISI
If you choose other, please name :  
The Congress Reporting Form
How many volunteers were present at the Congress? : 200-230
Delegates from which countries presented in the congress? : most of delegates from Africa ( central ;South ); Asian countries( Chinnese, India, Thai, ) some Europe, little from USA and America
Were the delegates of any other organizations present in the congress? : Yes
If yes, please write the names of the organizations in the box : other societies of Ped Inf Diseases : ESPID,Ascian Society
What were the responses to your talking points? Were specific questions or concerns raised? : Many persons especially African,asked me about validity and importance of Quantiferon screening test in pediatrics (close TB contact)in compare with PPD test
If you met staff members, please list their full names & positions. : The new president of WSPID Dr Shabir for talking about reason of decreasment the Iranian delegates in WSPID 2013 (100 to 3 persons)
Please inform us if there are any follow up actions we need to talk with the members of the congress : about changing iran from list B to A after acceptance .All Iranian participant paid the higher fee for attendence ( 700 $),but I contact with previous president of WSPID and asked him for discount the fee ( 170 $) like as other deVveloping countries before traveling. He agreed with discount .New president (Dr Shabir) promised us the registration fee will decrease for our country.
Your experiences about the travel processes(Providing ticket, accommodation,...) : Except for expensive tickete ( 40000000 tomans) ) I had no specific problem in providing tickete
-The mission days for delegates are not enough for south hemisphere ( 2 days plus congress days) , the site of congress is so far from Iran and no direct flight from Tehran is now , so I had changed 3 flight from TEHRAN-Qatar -Juhanesburg - Cape town .
Longer time for stay ( Qatar) in return to Tehran .
Please give a briefing of your own observations and outcomes of the congress: : Due to long destination from north hemisphere the deligates are lower than previous WSPID that I invited in last years ( poland) so the quality of articles were lowER than previous congress , most articles specified to African countries which are different from other regions .fOR EXAMPLE THE YELLOW FEVER, tHE bREAST FEEDING ,aids AND MANY HEALTH PROBLEM WHICH WAS SPECIFIC FOR aFRICA AND ARE NOT FOR US .
-bUT THE VACCINATION ARTICLES SPECIALLY NEW VACCINES FOR DEVELOPING COUNTRIS LIKE OUR COUNTRY WAS VERY ATTRACTIVE FOR ME. tHE IMPORTANCE OF CHANGIN IN VACCINATION PROGRAMS OF iRAN IS IMPORTANT AND NEEDED NOW