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  1. Book ; Thesis: Untersuchung molekularer Mechanismen bei der Angiogenese durch Intussuszeption und Sprossung

    Weichert, Alexander

    2007  

    Author's details vorgelegt von Alexander Weichert
    Subject code 612.1
    Language German
    Size 73 Bl. :. graph. Darst.
    Edition [Mikrofiche-Ausg.]
    Publishing country Germany
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Berlin, Charité, Univ.-Med., Diss., 2007
    HBZ-ID HT016827867
    Database Catalogue ZB MED Medicine, Health

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  2. Article ; Online: A "holistic" sonographic view on congenital heart disease: How automatic reconstruction using fetal intelligent navigation echocardiography eases unveiling of abnormal cardiac anatomy part II-Left heart anomalies.

    Weichert, Jan / Weichert, Alexander

    Echocardiography (Mount Kisco, N.Y.)

    2021  Volume 38, Issue 5, Page(s) 777–789

    Abstract: Volume ultrasound has been shown to provide valid complementary information on fetal anatomy. Four-dimensional assessment (4D) of the fetal cardiovascular system using spatial-temporal image correlation (STIC) allows for detailed examination of a highly ... ...

    Abstract Volume ultrasound has been shown to provide valid complementary information on fetal anatomy. Four-dimensional assessment (4D) of the fetal cardiovascular system using spatial-temporal image correlation (STIC) allows for detailed examination of a highly complex organ from the early second trimester onward. There is compelling evidence that this technique harbors quite a number of diagnostic opportunities, but manual navigation through STIC volume datasets is highly operator dependent. In fact, STIC is not incorporated yet into daily practice. Application of the novel fetal intelligent navigation echocardiography (FINE) considerably simplifies fetal cardiac volumetric examinations. This automatic technique applied on cardiac volume datasets reportedly has both high sensitivity and specificity for the detection of congenital heart defects (CHDs). Part I reviewed current data regarding detection rates of CHDs and illustrated the additional value of an automatic approach in delineating cardiac anatomy exemplified by congenital lesions of the right heart. In part II of this pictorial essay, we focused on left heart anomalies and aimed to tabulate recent findings on the quantification of normal and abnormal cardiac anatomy.
    Language English
    Publishing date 2021-03-29
    Publishing country United States
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 843645-9
    ISSN 1540-8175 ; 0742-2822
    ISSN (online) 1540-8175
    ISSN 0742-2822
    DOI 10.1111/echo.15037
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: A 'holistic' sonographic view on congenital heart disease - How automatic reconstruction using fetal intelligent navigation echocardiography (FINE) eases the unveiling of abnormal cardiac anatomy part I: Right heart anomalies.

    Weichert, Jan / Weichert, Alexander

    Echocardiography (Mount Kisco, N.Y.)

    2021  Volume 38, Issue 8, Page(s) 1430–1445

    Abstract: Attempting a comprehensive examination of the fetal heart remains challenging for unexperienced operators as it emphasizes the acquisition and documentation of sequential cross-sectional and sagittal views and inevitably results in diminished detection ... ...

    Abstract Attempting a comprehensive examination of the fetal heart remains challenging for unexperienced operators as it emphasizes the acquisition and documentation of sequential cross-sectional and sagittal views and inevitably results in diminished detection rates of fetuses affected by congenital heart disease. The introduction of four-dimensional spatio-temporal image correlation (4D STIC) technology facilitated a volumetric approach for thorough cardiac anatomic evaluation by the acquisition of cardiac 4D datasets. By analyzing and re-arranging of numerous frames according to their temporal event within the heart cycle, STIC allows visualization of cardiac structures as an endless cine loop sequence of a complete single cardiac cycle in motion. However, post-analysis with manipulation and repeated slicing of the volume usually requires experience and in-depth anatomic knowledge, which limits the widespread application of this advanced technique in clinical care and unfortunately leads to the underestimation of its diagnostic value to date. Fetal intelligent navigation echocardiography (FINE), a novel method that automatically generates and displays nine standard fetal echocardiographic views in normal hearts, has shown to be able to overcome these limitations. Very recent data on the detection of congenital heart defects (CHDs) using the FINE method revealed a high sensitivity and specificity of 98% and 93%, respectively. In this two-part manuscript, we focused on the performance of FINE in delineating abnormal anatomy of typical right and left heart lesions and thereby emphasized the educational potential of this technology for more than just teaching purposes. We further discussed recent findings in a pathophysiological and/or functional context.
    MeSH term(s) Cross-Sectional Studies ; Echocardiography, Four-Dimensional ; Female ; Fetal Heart/diagnostic imaging ; Heart Defects, Congenital/diagnostic imaging ; Humans ; Pregnancy ; Ultrasonography, Prenatal
    Language English
    Publishing date 2021-07-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 843645-9
    ISSN 1540-8175 ; 0742-2822
    ISSN (online) 1540-8175
    ISSN 0742-2822
    DOI 10.1111/echo.15134
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: The ICHOM Standard Set for Pregnancy and Childbirth - Translation and Linguistic Adaptation for Germany.

    Hartmann, Claudia / Rose, Matthias / Weichert, Alexander / Weißhaupt, Karen

    Geburtshilfe und Frauenheilkunde

    2022  Volume 82, Issue 7, Page(s) 747–754

    Abstract: ... ...

    Abstract Introduction
    Language English
    Publishing date 2022-07-07
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 80111-2
    ISSN 1438-8804 ; 0016-5751 ; 1615-3359
    ISSN (online) 1438-8804
    ISSN 0016-5751 ; 1615-3359
    DOI 10.1055/a-1666-0429
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Book ; Online ; Thesis: Von der Geburtshilfe zur Geburtsmedizin – Entwicklungen in der Perinatalmedizin und pränataldiagnostischen Bildgebung

    Weichert, Alexander [Verfasser]

    2018  

    Author's details Alexander Weichert
    Keywords Medizin, Gesundheit ; Medicine, Health
    Subject code sg610
    Language German
    Publisher Medizinische Fakultät Charité - Universitätsmedizin Berlin
    Publishing place Berlin
    Document type Book ; Online ; Thesis
    Database Digital theses on the web

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  6. Article ; Online: Mode of delivery of women with Swyer syndrome in a German case series.

    Weisshaupt, Karen / Henrich, Wolfgang / Neymeyer, Jörg / Weichert, Alexander

    Journal of perinatal medicine

    2021  Volume 49, Issue 6, Page(s) 725–732

    Abstract: Objectives: For women with Swyer Syndrome, a 46,XY gonadal dysgenesis, full term pregnancies are possible after oocyte donation. According to literature, mode of delivery is almost always by Caesarean section for various reasons. Medical indications are ...

    Abstract Objectives: For women with Swyer Syndrome, a 46,XY gonadal dysgenesis, full term pregnancies are possible after oocyte donation. According to literature, mode of delivery is almost always by Caesarean section for various reasons. Medical indications are multiple pregnancies and related complications, preeclampsia, an androgynous shaped pelvis and failed induction of labor. Elective Caesarean sections were performed based on maternal request and medical recommendation.
    Methods: Following careful examination and shared decision making, we planned a spontaneous delivery with a patient with Swyer syndrome and tested the different hypotheses regarding anatomical and functional features according to literature. In addition, deliveries of women with Swyer Syndrome were analyzed in a German multicenter case series.
    Results: A total of seven women with Swyer syndrome with a total of 10 pregnancies were identified, who later gave birth to twelve live-born children. Seven out of 10 births were performed by elective and non-elective Caesarean section, three births took place vaginally.
    Conclusions: In summary, the risk of Caesarean section delivery has increased, but spontaneous delivery can be attempted in the event of inconspicuous findings.
    MeSH term(s) Adult ; Cesarean Section/methods ; Delivery, Obstetric/methods ; Elective Surgical Procedures/methods ; Female ; Germany/epidemiology ; Gonadal Dysgenesis, 46,XY/diagnosis ; Gonadal Dysgenesis, 46,XY/epidemiology ; Gonadal Dysgenesis, 46,XY/physiopathology ; Humans ; Labor, Induced/methods ; Live Birth ; Obstetric Labor Complications/etiology ; Obstetric Labor Complications/prevention & control ; Oocyte Donation/methods ; Pregnancy ; Pregnancy Complications/epidemiology ; Pregnancy Complications/physiopathology ; Pregnancy Complications/therapy ; Pregnancy Outcome/epidemiology ; Reproductive Techniques, Assisted ; Stillbirth
    Language English
    Publishing date 2021-03-17
    Publishing country Germany
    Document type Case Reports ; Journal Article
    ZDB-ID 123512-6
    ISSN 1619-3997 ; 0300-5577 ; 0936-174X
    ISSN (online) 1619-3997
    ISSN 0300-5577 ; 0936-174X
    DOI 10.1515/jpm-2020-0562
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Semi-Automatic Measurement of Fetal Cardiac Axis in Fetuses with Congenital Heart Disease (CHD) with Fetal Intelligent Navigation Echocardiography (FINE).

    Weichert, Alexander / Gembicki, Michael / Weichert, Jan / Weber, Sven Christian / Koenigbauer, Josefine

    Journal of clinical medicine

    2023  Volume 12, Issue 19

    Abstract: Congenital heart disease (CHD) is one of the most common organ-specific birth defects and a major cause of infant morbidity and mortality. Despite ultrasound screening guidelines, the detection rate of CHD is limited. Fetal intelligent navigation ... ...

    Abstract Congenital heart disease (CHD) is one of the most common organ-specific birth defects and a major cause of infant morbidity and mortality. Despite ultrasound screening guidelines, the detection rate of CHD is limited. Fetal intelligent navigation echocardiography (FINE) has been introduced to extract reference planes and cardiac axis from cardiac spatiotemporal image correlation (STIC) volume datasets. This study analyses the cardiac axis in fetuses affected by CHD/thoracic masses (
    Language English
    Publishing date 2023-10-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662592-1
    ISSN 2077-0383
    ISSN 2077-0383
    DOI 10.3390/jcm12196371
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Fetal de novo heterozygous variant in the isocitrate dehydrogenase 1 gene associated with growth restriction, skeletal, cerebral and vascular anomalies.

    Illi, Clara / Koenigbauer, Josefine / Henrich, Wolfgang / Fangmann, Laura / Reinhardt, Charlotte / Ossmann, Sophia / Weichert, Alexander

    Prenatal diagnosis

    2023  Volume 43, Issue 11, Page(s) 1459–1462

    Abstract: Germline pathogenic variants in isocitrate dehydrogenase 1 (IDH1) can lead to a rare neurodevelopmental disorder called metaphyseal chondromatosis with D-2-hydroxyglutaric aciduria, including severe skeletal and cerebral anomalies. To the best of our ... ...

    Abstract Germline pathogenic variants in isocitrate dehydrogenase 1 (IDH1) can lead to a rare neurodevelopmental disorder called metaphyseal chondromatosis with D-2-hydroxyglutaric aciduria, including severe skeletal and cerebral anomalies. To the best of our knowledge, no prenatal case of an IDH1 pathogenic variant has been reported in literature. Somatic sequence variants in IDH1/2 genes are described in distinct cancers, premalignant diseases and rare inherited metabolic disorders. Amniocentesis and further genetic testing including trio exome sequencing were performed due to suspicious findings on a second trimester routine prenatal ultrasound examination. The fetus was found to have growth restriction, cerebral abnormalities (ex vacuo hydrocephalus, cerebellar and vermian hypoplasia, corpus callosum dysgenesis), brachycephaly, narrow chest, persistent left superior vena cava, liver calcifications, hyperechogenic bowel, short tubular bones and joint contractures. A de novo heterozygous variant in the IDH1 gene was detected via trio exome sequencing. The prenatal diagnosis of a de novo pathogenic variant in IDH1 in a fetus with the described phenotype, obtained through trio exome sequencing, helped parents and providers with an informed decision making about pregnancy management.
    Language English
    Publishing date 2023-09-14
    Publishing country England
    Document type Case Reports
    ZDB-ID 82031-3
    ISSN 1097-0223 ; 0197-3851
    ISSN (online) 1097-0223
    ISSN 0197-3851
    DOI 10.1002/pd.6433
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Erratum: Das ICHOM-Standardset für Schwangerschaft und Geburt – Übersetzung und sprachliche Anpassung für Deutschland

    Hartmann, Claudia / Rose, Matthias / Weichert, Alexander / Weißhaupt, Karen

    Geburtshilfe und Frauenheilkunde

    2022  Volume 82, Issue 07, Page(s) e36–e36

    Language German
    Publishing date 2022-07-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 80111-2
    ISSN 1438-8804 ; 0016-5751 ; 1615-3359
    ISSN (online) 1438-8804
    ISSN 0016-5751 ; 1615-3359
    DOI 10.1055/a-1906-2842
    Database Thieme publisher's database

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  10. Article: The ICHOM Standard Set for Pregnancy and Childbirth – Translation and Linguistic Adaptation for Germany

    Hartmann, Claudia / Rose, Matthias / Weichert, Alexander / Weißhaupt, Karen

    Geburtshilfe und Frauenheilkunde

    2022  Volume 82, Issue 07, Page(s) 747–754

    Abstract: Introduction: The gathering of health and quality-of-life issues that matter most to patients over so-called patient-reported outcomes (PROs) is a key aspect of patient-centered ... healthcare. In obstetrics, this approach has the potential to expand the ...

    Abstract Introduction: The gathering of health and quality-of-life issues that matter most to patients over so-called patient-reported outcomes (PROs) is a key aspect of patient-centered

    healthcare. In obstetrics, this approach has the potential to expand the current understanding of what quality entails by including patient perspectives. The International Consortium for

    Health Outcome Measures (ICHOM), founded in 2012, is a global organization which aims to standardise the collection of PROs and make the results comparable worldwide. A PRO Set for

    obstetrics, “Pregnancy and Childbirth”, was published in 2018. The aim of our work was to translate the instruments of this set that are not yet available in German into German.
    Methods: The instruments were translated from English into German using the Functional Assessment of Chronic Illness Therapy (FACIT) translation method. The translated instruments

    consisted of the Breastfeeding Self-Efficacy Scale – Short Form (BSES-SF), the Mother-to-Infant Bonding Scale (MIBS), and the Birth Satisfaction Scale – Revised (BSS-R) as well as a number

    of individual questions (items).
    Results: The final version of the German translations were found to be easily comprehensible by the target group. During the cognitive debriefing, it became clear that pregnant women

    and women who had just given birth often used a number of medically incorrect terms to refer to their symptoms or complaints. In the translations great care was taken to ensure that the

    wording was as close as possible to the general usage of the language while at the same time the terminology was medically correct. To achieve a precise but comprehensible translation, the

    response structure of the BSES-SF also had to be adapted.
    Conclusions: The instruments of the ICHOM Standard Set “Pregnancy and Childbirth”, which were not previously available in German, were successfully translated into German. This meant

    dealing with a few challenges such as adapting questions or response structures. The cultural and linguistic comprehensibility of the German translations were confirmed during the subsequent

    cognitive debriefing. The translations offer the possibility of implementing the complete ICHOM Set for Pregnancy and Childbirth. This would provide an opportunity to expand the existing

    understanding of quality by including the subjective experience of women during and after childbirth and, in future, to compare outcomes with those of other hospitals across the world. ; Einleitung: Die Erhebung von patient*innenberichteter Gesundheit und Lebensqualität über sogenannte Patient-Reported Outcomes (PROs) – sind ein zentraler Bestandteil

    patient*innenzentrierter Gesundheitsversorgung. Auch in der Geburtsmedizin haben sie das Potenzial, das aktuelle Qualitätsverständnis um die Patientinnenperspektive zu erweitern. Mit dem

    International Consortium for Health Outcome Measures (ICHOM) gibt es seit 2012 eine globale Organisation, welche die Erhebung von PROs standardisieren und Ergebnisse weltweit vergleichbar

    machen möchte. Für den Bereich Geburtsmedizin wurde 2018 das PRO-Set „Pregnancy and Childbirth“ veröffentlicht. Ziel dieser Arbeit ist die Übersetzung der noch nicht im Deutschen verfügbaren

    Instrumente dieses Sets ins Deutsche.
    Methoden: Die Übersetzung der Instrumente vom Englischen ins Deutsche erfolgte nach der Functional Assessment of Chronic Illness Therapy-(FACIT-)Übersetzungsmethode. Die übersetzten

    Instrumente umfassen die Breastfeeding Self-Efficacy Scale – Short Form (BSES-SF), die Mother-to-Infant Bonding Scale (MIBS), die Birth Satisfaction Scale – Revised (BSS-R) sowie mehrere

    Einzelfragen (Items).
    Ergebnisse: Die Endfassung der deutschen Übersetzungen ergaben ein hohes Maß an Verständlichkeit in der Zielgruppe. Bei der Durchführung des Cognitive Debriefings zeigte sich, dass im

    Sprachgebrauch der Schwangeren und Wöchnerinnen häufig medizinisch inkorrekte Formulierungen für Symptome oder Beschwerden genutzt werden. In den Übersetzungen wurde daher darauf geachtet,

    die Formulierungen möglichst dem allgemeinen Sprachgebrauch bei gleichzeitig medizinisch korrekter Ausdrucksweise anzupassen. Des Weiteren musste, um eine präzise und verständliche

    Übersetzung zu erreichen, die Antwortstruktur des BSES-SF adaptiert werden.
    Schlussfolgerungen: Die bisher nicht in deutscher Sprache verfügbaren Instrumente des ICHOM-Sets „Pregnancy and Childbirth“ konnten mit einigen wenigen Herausforderungen, wie z. B.

    Anpassung der Frage- oder Antwortstruktur, erfolgreich ins Deutsche übersetzt werden. Die kulturelle und sprachliche Verständlichkeit der deutschen Übersetzung konnte im Rahmen des Cognitive

    Debriefings bestätigt werden. Die Übersetzung bietet die Möglichkeit, dass vollständige ICHOM-Set für Schwangerschaft und Geburt zu implementieren. Daraus ergibt sich die Chance, das

    bisherige Qualitätsverständnis um das subjektive Erleben der Frauen rund um die Geburt zu erweitern sowie Ergebnisse zukünftig mit Kliniken international zu vergleichen.
    Keywords subjective perception of health ; patient-reported outcomes ; breastfeeding ; early bonding ; birth experience ; subjektives Gesundheitserleben ; Patient-Reported Outcomes ; Stillen ; frühe Bindungsbildung ; Geburtserleben
    Language English
    Publishing date 2022-07-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 80111-2
    ISSN 1438-8804 ; 0016-5751 ; 1615-3359
    ISSN (online) 1438-8804
    ISSN 0016-5751 ; 1615-3359
    DOI 10.1055/a-1666-0429
    Database Thieme publisher's database

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