Abstract
Summary
Pregnancy and lactation associated osteoporosis is a rare and often severe osteoporosis presentation. Little information is available about etiology, clinical characteristics, risk factors and predictors of severity. Using an anonymized questionnaire, we defined clinical characteristics and potential risk factors for disease severity in PLO including primiparity, heparin exposure and celiac disease.
Purpose
Pregnancy and lactation associated osteoporosis (PLO) is a rare form of early-onset osteoporosis in which young women present with fractures, usually multiple vertebral fractures, during late pregnancy or lactation. Little information is available about etiology, clinical characteristics, risk factors and predictors of disease severity.
Methods
PLO patients were recruited to complete an anonymized online questionnaire. Disease severity was defined as total number of fractures during or after the first pregnancy associated with a fracture(s). Analyses related disease severity to potential predictors including diseases/conditions or medication exposures.
Results
177 completed surveys were received between 5/29/2018 and 1/12/2022. Average age at initial PLO fracture event was 32 ± 5 years. The majority were primiparous with singleton pregnancy and 79% fractured during lactation. Subjects reported 4.7 ± 2.7 total PLO fractures, with 48% reporting ≥ 5 fractures. Vertebral fractures, reported by 164/177 responders (93%), were the most common fracture type.
Conditions and medications most commonly reported included vitamin D deficiency, amenorrhea unrelated to pregnancy, nephrolithiasis, celiac disease (CD), oral steroid use, heparin products during pregnancy and progestin only contraceptive after pregnancy. CD and heparins exposure during pregnancy were significantly related to disease severity.
Conclusion
This is the largest study characterizing clinical features of PLO to date. The large number of participants and broad range of clinical and fracture characteristics queried has yielded novel information on the characteristics of PLO and potential risk factors for its severity, including primiparity, exposure to heparin and CD. These findings provide important preliminary data that can help target future mechanistic investigations.
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Data Availability
The data used to support the findings of the study are included within the article.
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Funding
These studies were supported by FDA RO1 FD006007 (AC), the Simon-Strauss Foundation and the Thomas L. Kempner, Jr. and Katheryn C. Patterson Foundation.
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The authors (Ananya V. Kondapalli, Mafo Kamanda-Kosseh, John M. Williams, Stephanie Shiau, Mariana Bucovsky, Ivelisse Colon, Elizabeth Shane, Adi Cohen) declare that they have no conflict of interest.
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Kondapalli, A.V., Kamanda-Kosseh, M., Williams, J.M. et al. Clinical characteristics of pregnancy and lactation associated osteoporosis: An online survey study. Osteoporos Int 34, 1477–1489 (2023). https://doi.org/10.1007/s00198-023-06793-9
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DOI: https://doi.org/10.1007/s00198-023-06793-9