IS-PAS goes Eupen/Belgium!!

The 7th IS-PAS meeting will take place in Eupen, Belgium on the 13th of October 2023 with a very excting program!!

Details will follow soon....




IS-PAS goes Krakow!!

The 6th IS-PAS meeting will take place in Krakow, Poland, on the 19th of May 2023 with a very excting program!!

Details will follow soon....


During the second day of ebcog we will have the opportunity to discuss the diagnosis, management and how to deal with an unexpected case of PAS, with the help of Sally Collins, Olivier Morel and Karin Fox.





The 5th IS-PAS meeting will take place in Frankfurt, Germany, on the 8th of October 2022 with a very excting program!!



 Program details click here!!





IS-PAS goes to Poznan!!


The 4th IS-PAS meeting will take place in Poznan, Poland, the 13th May 2022 with a very excting program!!

Program details click here!!



IS-PAS Seminar 20 November 2021

as a physical meeting at Hospital St Luc UCL, Woluwe

8:30 am- 1:00 pm

Costs: 50€

Registration: This email address is being protected from spambots. You need JavaScript enabled to view it.


Programm at glance.



IS-PAS published in AOGS

"Placenta Accreta Spectrum: Evidence from a large multinational database"

IS-PAS has published a series of papers in a special supplement in Acta of Obstetrica et Gynecologica Scandinavica 2021.

The following papers are open access:


  • When a rare condition creates a scientific society: The history of the International Society for Placenta Accreta Spectrum (IS‐PAS)

  • Developing a database for multicenter evaluation of placenta accreta spectrum

  • A multicenter observational survey of management strategies in 442 pregnancies with suspected placenta accreta spectrum

  • Performance of antenatal imaging to predict placenta accreta spectrum degree of severity

  • Association of peripartum management and high maternal blood loss at cesarean delivery for placenta accreta spectrum (PAS): A multinational database study

  • Maternal and neonatal outcomes in planned versus emergency cesarean delivery for placenta accreta spectrum: A multinational database study

  • The relation between maternal obesity and placenta accreta spectrum: A multinational database study






IS-AIP becomes IS-PAS

On the election of 17th of July 2020, the name of the IS-AIP was changed into the Interantional Scoeity for Placenta Accreta Spectrum (IS-PAS).

See also: The rational for the IS-AIP becoming IS-PAS


New IS-PAS patient flyer (leaflet) for download: 


 English   Czech

see also:




25th April 2020

6thIS-AIP Meeting in Poznan, Poland hosted by Prof. Mariola Ropack-Lesiak



9th October 2020

7th IS-AIP Meeting in Copenhagen,Denmark hosted by Dr. Lene Gronbeck



New IS-AIP publication online:











 IS-AIP Booking Form












For the programm click here!

6 CME credit points (Ärtzekammer Berlin)













The International Society for Abnormally Invasive Placenta (IS-AIP) was founded by the members of the EW-AIP in March 2017.

The aim of the society is to promote the clinical study of, research in and the education regarding: "Abnormally Invasive Placenta".


 The Founders:

Frederic Chantraine, Belgium

Sally Collins, United Kingdom

Thorsten Braun,Germany

Louis Marcellin, France

Vedran Stefanovic, Finland

Pavel Calda, Czech Republic

Philippe Petit, Belgium

Maddalena Morlando, Italy

Heleen van Beekhuizen, The Netherlands

Hans Duvekot, The Netherlands

Katharina Weizsaecker, Germany

Olivier Morel, France

Minna Tikkanen, Finland

Jorma Paavonen, Finland

Pasquale Martinelli, Italy

Mariola Ropacka-Lesiak, Poland

Mina Mhallem, Belgium




On behalf of EW-AIP the following paper has been recently published: 

Ultrasound Obstet Gynecol. 2016 Mar;47(3):271-5. doi: 10.1002/uog.14952.
Proposal for standardized ultrasound descriptors of abnormally invasive placenta (AIP).

Pubmed link


With the contribution of EW-AIP the following paper has been recently published: 

Ultrasound Obstet Gynecol. 2016 Mar;47(3):276-8. doi: 10.1002/uog.15810.
Pro forma for ultrasound reporting in suspected abnormally invasive placenta (AIP): an international consensus.

Pubmed link 



5th International AIP Meeting in Vienna, Austria 18. October 2019 chaired by Prof. K. Chalubinski and Dr. P. Pateisky


Past meetings:

4th International AIP Meeting in Berlin, Germany 2019

3rd/ 14th International Meeting in Rotterdam, Netherlands 2018

2nd /13th International Meeting in Oxford, Great Britain 2018 

1st /12th International Meeting  in Helsinki, Finland 2017 

11th International Meeting in Neaples, Italy 2016

10th International Meeting in Prague,  Czech Republic 2016

9th International Meeting in Brussels, Belgium 2016

1st EW-AIP Webmeeting November 2015

Presentation of the EW-AIP study group (WS30) at the DGPM meeting, 03. December 2015, Berlin, Germany 

8th International Meeting in Oxford, UK 5. June 2015

DIP Symposium, Berlin 2015

7th International Meeting in Nancy November 2014

Course: AIP and excessive obstetric bleeding at NCOG, 10. June 2014, Stockholm, Sweden

Workshop: AIP - Abnormally Invasive Placenta - From clinical management to basic research at ACOG Annual clinical meeting, 26-30. April 2014, Chicago USA

Workshop at the DGPM meeting, 05. December 2013, Berlin, Germany

Satellite Symposium at the SEG meeting, 20. September 2013, Brussels, Belgium

Workshop "Placenta Network" at the IFPA meeting, 12. September 2013, Whistler, Canada


New EW-AIP website launched May 2013!


Special Issue on AIP in Acta Obstetricia et Gynecologica Scandinavica April 2013!