Maternal Marijuana Exposure, Feto-Placental Weight Ratio, and Placental Histology
Thieme. All rights reserved..
OBJECTIVE: Marijuana use is associated with placenta-mediated adverse pregnancy outcomes including fetal growth restriction, but the mechanism remains uncertain. The objective was to evaluate the association between maternal marijuana use and the feto-placental weight ratio (FPR). Secondarily, we aimed to compare placental histology of women who used marijuana to those who did not.
STUDY DESIGN: This was a secondary analysis of singleton pregnancies enrolled in a multicenter and case-control stillbirth study. Prior marijuana use was detected by electronic medical record abstraction or cord homogenate positive for 11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid. Prior tobacco use was detected by self-report or presence of maternal serum cotinine. Stillbirths and live births were considered separately. The primary outcome was FPR. Association of marijuana use with FPR was estimated with multivariable linear modeling adjusted for fetal sex, preterm birth, and tobacco use. Comparisons between groups for placental histology were made using Chi-square and stratified by live birth and stillbirth, term and preterm deliveries, and fetal sex.
RESULTS: Of 1,027 participants, 224 were stillbirths and 803 were live births. Overall, 41 (4%) women used marijuana during the pregnancy. The FPR ratio was lower among exposed offspring but reached statistical significance only for term stillbirths (mean 6.84 with marijuana use vs. mean 7.8 without use, p < 0.001). In multivariable modeling, marijuana use was not significantly associated with FPR (p = 0.09). There were no differences in histologic placental features among those with and without marijuana use overall or in stratified analyses.
CONCLUSION: Exposure to marijuana may not be associated with FPR. Similarly, there were no placental histologic features associated with marijuana exposure. Further study of the influence of maternal marijuana use on placental development and function is warranted to better understand the association between prenatal marijuana use and poor fetal growth.
KEY POINTS: · Maternal marijuana exposure was not associated with the feto-placental weight ratio.. · Marijuana exposure was not associated with differences in placental histology.. · Concerning trend toward lower feto-placental weight ratios among marijuana-exposed stillbirths.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:39 |
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| Enthalten in: |
American journal of perinatology - 39(2022), 5 vom: 01. Apr., Seite 546-553 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Metz, Torri D [VerfasserIn] |
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| Links: |
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| Themen: |
Journal Article |
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| Anmerkungen: |
Date Completed 17.05.2022 Date Revised 20.09.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1055/s-0040-1717092 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM315423854 |
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| 041 | |a eng | ||
| 100 | 1 | |a Metz, Torri D |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Maternal Marijuana Exposure, Feto-Placental Weight Ratio, and Placental Histology |
| 264 | 1 | |c 2022 | |
| 336 | |a Text |b txt |2 rdacontent | ||
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| 500 | |a Date Completed 17.05.2022 | ||
| 500 | |a Date Revised 20.09.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Thieme. All rights reserved. | ||
| 520 | |a OBJECTIVE: Marijuana use is associated with placenta-mediated adverse pregnancy outcomes including fetal growth restriction, but the mechanism remains uncertain. The objective was to evaluate the association between maternal marijuana use and the feto-placental weight ratio (FPR). Secondarily, we aimed to compare placental histology of women who used marijuana to those who did not | ||
| 520 | |a STUDY DESIGN: This was a secondary analysis of singleton pregnancies enrolled in a multicenter and case-control stillbirth study. Prior marijuana use was detected by electronic medical record abstraction or cord homogenate positive for 11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid. Prior tobacco use was detected by self-report or presence of maternal serum cotinine. Stillbirths and live births were considered separately. The primary outcome was FPR. Association of marijuana use with FPR was estimated with multivariable linear modeling adjusted for fetal sex, preterm birth, and tobacco use. Comparisons between groups for placental histology were made using Chi-square and stratified by live birth and stillbirth, term and preterm deliveries, and fetal sex | ||
| 520 | |a RESULTS: Of 1,027 participants, 224 were stillbirths and 803 were live births. Overall, 41 (4%) women used marijuana during the pregnancy. The FPR ratio was lower among exposed offspring but reached statistical significance only for term stillbirths (mean 6.84 with marijuana use vs. mean 7.8 without use, p < 0.001). In multivariable modeling, marijuana use was not significantly associated with FPR (p = 0.09). There were no differences in histologic placental features among those with and without marijuana use overall or in stratified analyses | ||
| 520 | |a CONCLUSION: Exposure to marijuana may not be associated with FPR. Similarly, there were no placental histologic features associated with marijuana exposure. Further study of the influence of maternal marijuana use on placental development and function is warranted to better understand the association between prenatal marijuana use and poor fetal growth | ||
| 520 | |a KEY POINTS: · Maternal marijuana exposure was not associated with the feto-placental weight ratio.. · Marijuana exposure was not associated with differences in placental histology.. · Concerning trend toward lower feto-placental weight ratios among marijuana-exposed stillbirths | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Multicenter Study | |
| 650 | 4 | |a Research Support, N.I.H., Extramural | |
| 700 | 1 | |a Allshouse, Amanda A |e verfasserin |4 aut | |
| 700 | 1 | |a Pinar, Halit |e verfasserin |4 aut | |
| 700 | 1 | |a Varner, Michael |e verfasserin |4 aut | |
| 700 | 1 | |a Smid, Marcela C |e verfasserin |4 aut | |
| 700 | 1 | |a Hogue, Carol |e verfasserin |4 aut | |
| 700 | 1 | |a Dudley, Donald J |e verfasserin |4 aut | |
| 700 | 1 | |a Bukowski, Radek |e verfasserin |4 aut | |
| 700 | 1 | |a Saade, George R |e verfasserin |4 aut | |
| 700 | 1 | |a Goldenberg, Robert L |e verfasserin |4 aut | |
| 700 | 1 | |a Reddy, Uma |e verfasserin |4 aut | |
| 700 | 1 | |a Silver, Robert M |e verfasserin |4 aut | |
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