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Similarities and differences in international clinical practice guidelines for preeclampsia diagnosis and
Mónica Chamillard1, Virginia Díaz1, Celina Gialdini1,2
1Centro Rosarino de Estudios Perinatales (CREP), Rosario, Santa Fe, Argentina.
Insights
Preeclampsia diagnosis varies globally, impacting care. Consensus on criteria, including hypertension, proteinuria, and organ dysfunction, is crucial for consistent clinical practice, research, and global health equity.
Area of Science:
- Obstetrics and Gynecology
- Maternal-Fetal Medicine
- Clinical Practice Guidelines
Background:
- Preeclampsia is a major cause of maternal and newborn mortality worldwide.
- Diagnostic criteria have evolved from hypertension and proteinuria to include organ and placental dysfunction.
- Inconsistent international guidelines hinder standardized and equitable patient care.
Purpose of the Study:
- To compare and contrast diagnostic criteria for preeclampsia across current clinical practice guidelines.
- To evaluate the evidence base supporting these diagnostic recommendations.
- To identify areas of consensus and disagreement in preeclampsia diagnosis.
Main Methods:
- Systematic review of clinical practice guidelines (2014-2024) from international organizations.
- Searched multiple databases for guidelines and systematic reviews on preeclampsia diagnosis.
- Analyzed guidelines for similarities, differences, and supporting evidence.
Main Results:
- Fifteen guidelines and 11 supporting systematic reviews were identified.
- Hypertension and proteinuria are consistently included, but assessment methods lack uniformity.
- Organ dysfunction is included in 8 guidelines, placental dysfunction in 4, with varying definitions and evidence.
Conclusions:
- Agreement exists on hypertension and proteinuria for preeclampsia diagnosis, but not on measurement standardization.
- Inclusion and assessment of organ and placental dysfunction vary significantly among guidelines.
- A unified definition of preeclampsia is essential for clinical practice, research, and global health policy.
Introduction:
Preeclampsia is a leading cause of maternal and newborn deaths. Traditionally characterized by high-blood pressure and proteinuria, organ and placental dysfunction were later proposed in some clinical practice guidelines as additional components for its definition. Variability in diagnostic criteria across international guidelines could be a barrier to harmonized and equitable care in different settings.
Methods:
We reviewed current relevant clinical practice guidelines to identify similarities and differences in recommendations related to the definition and diagnosis of preeclampsia, and their supporting evidence. We also reviewed additional systematic reviews related to the diagnosis of preeclampsia. We searched different databases and websites of international and professional organizations for guidelines published or updated from 2014 to 2024. We searched databases to identify additional systematic reviews on preeclampsia diagnosis.
Results:
Fifteen guidelines from 11 organizations were identified with 11 systematic reviews supporting evidence on the diagnosis of preeclampsia. We found 21 additional systematic reviews, not included in these guidelines.
Discusion:
There is agreement for hypertension and proteinuria for the diagnosis of preeclampsia, without a uniform consensus on methods and devices for their assessment. Organ dysfunction is considered in eight guidelines and placental dysfunction in four, with some disagreements on their usefulness, and the methods and tools for their measurement. Few guidelines support their recommendations on preeclampsia diagnosis with systematic reviews.
Conclusion:
Consensus in preeclampsia definition is needed to guide not only clinical practice but also future research and policy, particularly in global health contexts.
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Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.