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Pattern of Endometriosis Care in German-speaking
Countries: the QS ENDO Project
Zalewski M, Zeppernick F, Wölfler MM, Janschek E
Keckstein J, Sillem M, Schweppe KW
Meinhold-Heerlein I
J. Reproduktionsmed. Endokrinol 2017; 14 (6), 311-312
20.-21. März 2026
Universitätsmedizin Mainz
ENDOKRINOLOGIE & FERTILITÄT
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311
Pattern of Endometriosis Care in
German-speaking Countries: the QS ENDO Project
M. Zalewski1*, F. Zeppernick1*, M. M. Wölfler1,2, E. Janschek3, J. Keckstein3, M. Sillem4, K.-W. Schweppe5, I. Meinhold-Heerlein1;
for the QS Endo committee members of the Stiftung Endometrioseforschung (SEF)
Introduction
Endometriosis is a common disorder af-
fecting approximately 10–15% of repro-
ductive-age women [1]. It is character -
ized by the presence of endometrial-like
tissue outside the uterine cavity. Typical
symptoms include dysmenorrhea, pelvic
pain and subfertility.
The symptoms and treatment-related ef-
fects of endometriosis often affect young,
active women during their economical-
ly productive lives, which – the medical
challenges aside – causes a substantial fi-
nancial burden on the health-care system
[2, 3]. One of the main reasons for the
high impact on patients’ quality of life
(QoL) is the long delay in diagnosis. Pa-
tients often experience a lag time of up to
10 years between the onset of symptoms
and diagnosis [4, 5]. The effects of deal-
ing with debilitating pain combined with
the emotional impact of sub-fertility fur-
ther complicate the patient’s situation.
It seems obvious that more research is
needed to determine physician and pa-
tient factors that influence diagnostic and
treatment decisions in endometriosis.
The positive changes obtained by bench-
marking in the treatment of ovarian can-
cer was one of the major drivers motivat-
ing the bid to repeat that success story in
this, one of the main medical challeng-
es facing young women during their pro-
ductive lives [6]. Work on ovarian can-
cer demonstrated that the creation of a
quality assurance program (QS OV AR)
resulted in overall improvement in the
quality of care of patients with ovarian
cancer. While adherence to treatment
guidelines varied markedly early in the
study [7], rates of staging and treatment
according to guidelines improved over
time with continued participation in the
program. The QS OV AR program also
demonstrated that the structure and size
of the hospital did not have a signifi-
cant impact on survival. The only trans-
parent treatment facility characteristic
that significantly impacted the progno-
sis of ovarian cancer was participation in
clinical studies [6]. One study on ovari-
an cancer found that the likelihood of a
patient receiving a recommended thera-
py grew when providers received train-
ing [8].
QS ENDO Project
Standardized quality indicators for treat-
ment of endometriosis have yet to be es-
tablished. This lack of standards repre-
sents a hurdle to improving the quality of
treatment, and it is one which ought to be
overcome. In view of the success of the
QS OV AR program, we hope that the im-
plementation of a quality assurance pro-
gram in endometriosis (QS ENDO) will
help to raise the standard of endometriosis
care in German-speaking countries and
gain better adherence to treatment guide-
lines. Furthermore, we hope that the pro-
gram will have positive effects in terms of
shortening the lag time between the on-
set of symptoms and diagnosis, reducing
non-beneficial surgical interventions and
improving patient satisfaction or QoL.
The QS ENDO program is to proceed in
four phases: QS ENDO Real, QS ENDO
Pilot, QS ENDO Study and QS ENDO
Received: August 31, 2017; accepted after revision: October 5, 2017 (responsible Editor: Dr. K. Bühler, Stuttgart)
*contributed equally
From the 1Department of Gynecology and Obstetrics, University Hospital RWTH Aachen, Germany; the 2Department of Gynecology and Obstetrics, University Hospital Graz,
Austria; the 3Department of Obstetrics and Gynecology, Villach General Hospital, Villach, Austria; the 4Clinic at the Rosengarten, Mannheim; and the 5Department of Obstetrics
and Gynecology, Ammerland Clinic, Westerstede, Germany
Correspondence: Prof. Dr. Ivo Meinhold-Heerlein, Department of Gynecology and Obstetrics, University Hospital RWTH Aachen, Pauwelsstraße 30, D-52070 Aachen;
e-mail:
[email protected]
Das Qualitätssicherungsprogramm QS ENDO wurde initiiert, um die Versorgungsrealität für Endometriose in der DACH-Region (Deutschland, Österreich,
Schweiz) zu erfassen.
Die erste Phase (QS ENDO Real) wird einen Überblick über die aktuelle Versorgung von Endometriosepatientinnen erbringen. In der zweiten Phase (QS
ENDO Pilot) werden die tatsächlichen Behandlungen an Endometriosezentren der Stufe II und III innerhalb eines einmonatigen Zeitraumes abgefragt. In Pha-
se III (QS ENDO Study) wird diese Abfrage auf alle behandelnden Kliniken in der DACH-Region ausgeweitet.
Das QS ENDO-Projekt wird als erstes Programm dieser Art ein umfassendes Verständnis der tatsächlichen Versorgungsrealität liefern. Dies soll dabei
helfen, Qualitätsindikatoren für die Diagnostik und Therapie der Endometriose zu generieren.
Schlüsselwörter: Endometrioseversorgung, Qualitätssicherung, Qualitätsindikatoren
The implementation of a quality assurance program in endometriosis QS ENDO was initiated to evaluate the actual pattern of endometriosis care in Ger -
man-speaking countries.
After the first phase (QS ENDO Real) which will yield an overview of the current endometriosis care, phase II (QS ENDO Pilot) will be retrieving the actual
care of the patients during a 1-month period in all high-level certified endometriosis centers. In phase III (QS ENDO Study), a representative, comprehensive
analysis of care across all treating facilities of the German-speaking countries is planned.
The QS ENDO project will be the first program of its kind to acquire a profound understanding of the pattern and quality of endometriosis care, which will
help to generate quality indicators for diagnosis and treatment. J Reproduktionsmed Endokrinol_Online 2017; 14 (6): 311–2.
Key words: Endometriosis care, quality assurance, quality indicators
J Reproduktionsmed Endokrinol_Online 2017; 14 (6)
For personal use only. Not to be reproduced without permission of Krause & Pachernegg GmbH.
Pattern of Endometriosis Care in German-speaking Countries: the QS ENDO Project
312
Follow up. The four phases shall be im-
plemented in stages over course of the
coming decade.
The aim of Phase I (QS ENDO Real) is
to obtain a comprehensive overview of
current availability and quality of care of
patients with endometriosis in German-
speaking countries.
During Phase II (QS ENDO Pilot), cent-
ers already certified as high-level endo-
metriosis specialist centers (Levels II
and III) by the Stiftung Endometriose-
forschung (SEF) will be asked to pro-
vide detailed records of all patients diag-
nosed and treated within a 1-month peri-
od. Each of the approximately 60 cen ters
should report on an average of 10 con-
secutive patients.
During Phase III (QS ENDO Study),
all gynecologic treatment facilities in
the German-speaking countries (the so-
called DACH region) will be asked to re-
port on a sample of patients during a spe-
cific treatment period. This will enable a
representative, comprehensive analysis
of care across the region. The number of
patients whose care each facility will be
asked to track as part of the study will be
matched to the facility’s size and struc-
ture based on the results of Phase I.
Phase IV (QS ENDO Follow-up) is in-
tended to follow up on care and outcomes
for patients documented during Phases II
and III in order to generate valid data on
the efficacy of treatment.
The purpose of Phase I (QS ENDO
Real) is to evaluate the pattern and quali-
ty of endometriosis care in the Europe-
an countries in which the predominate
every day language is German, or in other
words, in the so-called DACH countries
of Germany (D), Austria (A) and Swit-
zerland (CH).
All gynecology departments in the
DACH region will be contacted via regu-
lar mail and asked to provide a descrip-
tion of the current quality of care of en-
dometriosis patients. A two-page ques-
tionnaire will be supplied to facilitate
reporting. The parameters of the ques-
tionnaire were developed by a panel of
25 experts during a 3-day workshop on
quality management in endometriosis
treatment which took place at the Weis-
sensee Conference of the scientific board
of the Stiftung Endometrioseforschung
(SEF) in Austria in 2016. The goal is a
response rate of at least 10–20%.
In general, the questionnaire includes
several structural as well as content-re-
lated questions:
– Apart from the size and structure of
the treatment facility, information
about human resource management
as well as providers’ level of educa-
tion and training are surveyed.
– The questionnaire asks a responding
physician to estimate the number of
patient contacts as well as the num-
ber and type of surgical interventions
which take place and
– another set of questions focuses on
the assessment of certain symptoms
and diagnostic steps, e.g., the evalua-
tion of dysmenorrhea or the use of
transvaginal ultrasound for an effec-
tive and efficient patient work-up.
To our knowledge, the QS ENDO pro-
ject will be the first effort spanning the
DACH region to acquire a profound un-
derstanding of the pattern and quality of
endometriosis care, which will help to
generate quality indicators for treatment.
A strength of the concept of QS ENDO
Real is that it provides a pen-to-paper re-
sponse setting, creating a low threshold
for respondents to be willing to partici-
pate; but the very same feature might
also be seen as a weaknesses in that re-
spondents may overestimate or underes-
timate some data.
Finally, we would add that the potential
bias caused by respondents approximat-
ing numbers of patients during Phase I
will be corrected during Phases II and
III. In those phases (QS ENDO Pilot
and Study), information will be gathered
about actual diagnostics and treatments
performed in consecutive patients based
on real patient data rather than on esti-
mates.
As the questionnaires for Phase I were
distributed in 2016, we expect to be able
to publish the results of QS ENDO Real
by the end of 2017.
Acknowledgements
QS Endo committee members: Du-
bravko Barisic, Alexander Boosz, Iris
Brandes, Gerald Fischerlehner, Nan-
nette Grübling, Bernhard Krämer, Frank
Oehmke, Peter Oppelt, Ralf Rothmund,
Darius Salehin, Chi Mi Scheible, Mi-
riam Schempershofe, Vanadin Seifert-
Klauss, Omar Shebl, Sigrid Vinger -
hagen-Pethick, Peter Widschwendter,
Pauline Wimberger.
Conflict of Interest
The authors have no conflict of interest
to disclose.
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