The correlation between the cerebroplacental ratio and fetal arterial blood gas in appropriate-for-gestational-age fetuses: A cross-sectional study.

Jamal A, Marsoosi V, Sarvestani F, Neda Hashemi
International journal of reproductive biomedicine · 2021 · doi:10.18502/ijrm.v19i9.9714 · PMID:34723061 · PMC8548746
OA: gold CC-BY-4.0
📄 Open PDF Full text JSON View on PubMed View at publisher
⚙ AI-generated summary by qwen3.7-flash, 2026-09-02 ⓘ

This cross-sectional study of 347 appropriate-for-gestational-age fetuses found that a third-trimester cerebroplacental ratio below 0.67 multiples of the median was associated with higher rates of fetal distress, emergency cesarean section, and neonatal intensive care unit admission.

One-sentence paraphrase of the abstract; not a substitute for reading it. No clinical advice. How this works

⚙ AI-generated deep summary by qwen3.7-flash, 2026-08-24 · read from full text ⓘ

This cross-sectional study evaluated the correlation between the cerebroplacental ratio (CPR) and fetal arterial blood gas parameters in 403 appropriate-for-gestational-age fetuses at term. Researchers measured CPR via Doppler ultrasound before delivery and compared neonatal outcomes, including umbilical artery pH, Apgar scores, and rates of emergency cesarean section or NICU admission, between groups with high and low CPR values. The findings indicated that a low CPR was significantly associated with lower neonatal pH, increased risk of intrapartum fetal distress, and higher likelihood of adverse perinatal outcomes such as emergency surgery and intensive care admission. Relevance to endometriosis: The paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.

Read from the paper's body, not the abstract. Not a substitute for reading the paper. No clinical advice. How this works

Abstract

BackgroundThe cerebroplacental ratio (CPR) is an important index for predicting adverse pregnancy outcomes in small-for-gestational-age and appropriate-for-gestational-age fetuses.ObjectiveTo find out whether there is an association between the CPR level and the blood cord gases analysis in appropriate for gestational age fetuses.Materials and methodsThis cross-sectional study included 347 pregnant women at the gestational age of 37-40 wk. Patients had an appropriate-for-gestational-age fetus confirmed from their first ultrasonography results. Participants were divided into two groups based on their CPR, measured before delivery. Finally, after delivery, arterial blood gas level and the incidence of emergency cesarean section, intrapartum fetal distress and neonatal intensive care unit admissions were compared between the two groups.ResultsFifty-four (15.6%) cases had a CPR below the detection limit of the assay. The incidence of fetal distress, emergency cesarean section, neonatal hospitalization in the neonatal intensive care unit, and pH < 7.2 were significantly lower in women with CPR ≥ 0.67 multiples than in women with a CPR < 0.67 multiples of the median.ConclusionThe third-trimester CPR is an independent predictor of stillbirth and perinatal mortality and morbidity. The role of UA/MCA Doppler and the CPR in assessing the risk of adverse pregnancy outcomes should be evaluated prospectively.
Full text 8,004 characters · extracted from pmc-nxml · 2 sections · click to expand

Section

The CPR is an important factor in predicting the morbidity and mortality of infants. And a low CPR, even in normal weight fetuses, can be a sign of hypoxemia and placental insufficiency. However, this claim needs further investigation.

Coi Statement

The authors declare that there is no conflict of interest.

Text is read by the "Ask this paper" AI Q&A widget below. Extraction quality varies by source — PMC NXML preserves structure cleanly, OA-HTML may include some navigation residue, and OA-PDF can have broken hyphenation. The publisher copy (via DOI) is the canonical version.

My notes (saved in your browser only)

⚙ Ask this paper AI returns verbatim quotes from the full text · source: pmc-nxml ⓘ

Answers must be backed by verbatim quotes from this paper's full text. Hallucinated quotes are dropped automatically; if no verbatim passage answers the question, we say so. How this works

Citation neighborhood (no data yet)

We don't have any in-corpus citations linked to this paper yet. The paper's references may be in our DB but unresolved to ``paper_id`` (resolution happens at ingest when the cited DOI matches a row we already have). Run the cross-source citation reconcile pass to retry.

Source provenance

europepmc
last seen: 2026-09-06T09:34:12.023084+00:00
License: CC-BY-4.0 · commercial use OK · attribution required
Per Europe PMC