Publications by authors named "Klaas Heinemann"

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Risk of venous thromboembolism associated with chlormadinone acetate- and levonorgestrel-containing combined oral contraceptives - Insights from the retrospective RIVET-RCS study.
Pauline De Corte, Moritz Klinghardt, Anja Bauerfeind, Tanja Boehnke, Klaas Heinemann

Contraception· January 2026

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Co-administration of combined oral contraceptives and psychotropic drugs: risk of contraceptive failure and adverse events.
Tanja Boehnke, Christian Franke, Anja Bauerfeind, Klaas Heinemann, Katja Koelkebeck

Am J Obstet Gynecol· December 2025

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Use of oral medications prior to IUD insertion - Trends and associations of patient characteristics in a large observational study in Europe (EURAS-LCS12).
Moritz Klinghardt, Manuel Rizzo, Tanja Boehnke, Clare Barnett, Klaas Heinemann

Eur J Obstet Gynecol Reprod Biol· December 2025

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Effectiveness of the etonogestrel implant: an economic model of immediate postpartum use on pregnancy outcomes.
Vanessa Perez Patel, Kevin Collins, Klaas Heinemann, William Ngantung, Matia Saeedian

J Med Econ· December 2025

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Real-world use of antispasmodic drugs during IUD insertion - insights from the large observational study EURAS-LCS12.
Lisa Eggebrecht, Manuel Rizzo, Moritz Klinghardt, Tanja Böhnke, Clare Barnett, Klaas Heinemann

Eur J Contracept Reprod Health Care· June 2025

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Unravelling the Causal Relationship between Endometriosis and the Risk for Developing Venous Thromboembolism: A Pooled Analysis.
Pauline De Corte, Igor Milhoranca, Sylvia Mechsner, Anna Sara Oberg, Tobias Kurth, Klaas Heinemann

Thromb Haemost· April 2025

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Impact of progestin type on the risk of drug interactions between combined oral contraceptives and psychotropic drugs: A pooled analysis of real-world data.
Tanja Boehnke, Christian Franke, Anja Bauerfeind, Klaas Heinemann, Cornelia Kolberg-Liedtke

Contraception· April 2025

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Population characteristics of intrauterine device users in real-world clinical practice across Europe - insights from the EURAS-LCS12 study.
Lisa Eggebrecht, Anja Bauerfeind, Tanja Boehnke, Manuel Rizzo, Christine Hagemann, Klaas Heinemann

Contracept Reprod Med· March 2025

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Time to Diagnose Endometriosis: Current Status, Challenges and Regional Characteristics-A Systematic Literature Review.
Pauline De Corte, Moritz Klinghardt, Sophia von Stockum, Klaas Heinemann

BJOG· January 2025

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Does the shape of the copper intrauterine device play a role in expulsion? Results from the ongoing European Active Surveillance Study on LCS12.
Tanja Boehnke, Anja Bauerfeind, Lisa Eggebrecht, Camille Cellier, Jens A Lange, Klaas Heinemann

Contraception· December 2024

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Quality of evidence for expulsion rates of copper IUDs.
Tanja Boehnke, Anja Bauerfeind, Lisa Eggebrecht, Camille Cellier, Jens A Lange, Klaas Heinemann

Contraception· December 2024

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Response to letter to the Editor.
Tanja Boehnke, Anja Bauerfeind, Lisa Eggebrecht, Camille Cellier, Jens A Lange, Klaas Heinemann

Contraception· August 2024

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Systematic analysis of combined oral contraceptive prescription patterns in psychotropic drug users across twelve European countries.
Tanja Boehnke, Christian Franke, Anja Bauerfeind, Klaas Heinemann, Cornelia Kolberg-Liedtke

Contraception· April 2024

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Venous Thromboembolic Risk of Estradiol Valerate-Dienogest Compared with Ethinyl Estradiol-Levonorgestrel Combined Oral Contraceptives.
Anja Bauerfeind, Sophia von Stockum, Tanja Boehnke, Klaas Heinemann

Obstet Gynecol· March 2024

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NOMAC-E2 shows a better contraceptive effectiveness than LNG combined oral contraceptives in women under 25: real-world PRO-E2 study.
Sophia von Stockum, Anja Bauerfeind, Kerstin Becker, Christian Franke, Franca Fruzzetti, Klaas Heinemann

Gynecol Endocrinol· December 2023

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NOMAC-E2 compares to LNG combined oral contraceptives in women over forty: real-world PRO-E2 study.
Sophia von Stockum, Kerstin Becker, Anja Bauerfeind, Christian Franke, Franca Fruzzetti, Klaas Heinemann

Gynecol Endocrinol· December 2023

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How did regional lockdowns during the COVID-19 pandemic affect recruitment into a large multinational cohort study of intrauterine device users?
Tanja Boehnke, Lisa Eggebrecht, Mareike Viet, Klaas Heinemann, Anja Bauerfeind

Contraception· July 2023

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TEMPORARILY WITHDRAWN: Does the shape of the copper intrauterine device play a role in expulsion? Results from the ongoing European Active Surveillance Study on LCS12.
Tanja Boehnke, Anja Bauerfeind, Lisa Eggebrecht, Camille Cellier, Jens A Lange, Klaas Heinemann

Contraception· July 2023

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Pregnancy and pregnancy outcomes in a prospective cohort study: Final results from the Nexplanon Observational Risk Assessment Study (NORA).
Suzanne Reed, Thai Do Minh, Jens A Lange, Carol Koro, Klaas Heinemann

Contraception· April 2023

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Thromboembolic safety of norethisterone vs levonorgestrel in combined oral contraceptive users: a pooled analysis of 4 large prospective cohort studies.
Clare Barnett, Anja Bauerfeind, Sophia Von Stockum, Klaas Heinemann

AJOG Glob Rep· February 2022

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Prospective controlled cohort study on the safety of a monophasic oral contraceptive containing nomegestrol acetate (2.5mg) and 17β-oestradiol (1.5mg) (PRO-E2 study): risk of venous and arterial thromboembolism.
Suzanne Reed, Carol Koro, Julia DiBello, Kerstin Becker, Anja Bauerfeind, Klaas Heinemann

Eur J Contracept Reprod Health Care· December 2021

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Unintended pregnancy in users of nomegestrol acetate and 17β-oestradiol (NOMAC-E2) compared with levonorgestrel-containing combined oral contraceptives: final results from the PRO-E2 study.
Suzanne Reed, Carol Koro, Julia DiBello, Kerstin Becker, Anja Bauerfeind, Klaas Heinemann

Eur J Contracept Reprod Health Care· December 2021

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Real world data on symptomology and diagnostic approaches of 27,840 women living with endometriosis.
Kerstin Becker, Klaas Heinemann, Bruno Imthurn, Lena Marions, Sabine Moehner

Sci Rep· October 2021

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Risk of depression and anemia in users of hormonal endometriosis treatments: Results from the VIPOS study.
Sabine Moehner, Kerstin Becker, Jens A Lange, Sophia von Stockum, Klaas Heinemann

Eur J Obstet Gynecol Reprod Biol· August 2020

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Safety of Dienogest and Other Hormonal Treatments for Endometriosis in Real-World Clinical Practice (VIPOS): A Large Noninterventional Study.
Klaas Heinemann, Bruno Imthurn, Lena Marions, Christoph Gerlinger, Kerstin Becker

Adv Ther· May 2020

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