Effect of Maternal Meal Ingestion on Fetal Renal Artery Resistance
Objective: To examine whether maternal meal ingestion affects the fetal circulation in uncomplicated pregnancies. Methods: A simple crossover blinded study was designed for late uncomplicated singleton pregnancies. After overnight fasting, two different maternal meal states were tested. In one state...
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| Veröffentlicht in: | Obstetrics and gynecology (New York. 1953) 1997-09, Vol.90 (3), p.340-343 |
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| container_title | Obstetrics and gynecology (New York. 1953) |
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| creator | Yasuhi, Ichiro Hirai, Masanao Oka, Satoshi Nakajima, Hisayoshi Ishimaru, Tadayuki |
| description | Objective: To examine whether maternal meal ingestion affects the fetal circulation in uncomplicated pregnancies.
Methods: A simple crossover blinded study was designed for late uncomplicated singleton pregnancies. After overnight fasting, two different maternal meal states were tested. In one state, pregnant women had a standard 600-kcal breakfast at 8 am (phase A). The other state consisted of maintaining fasting (phase B). Both states were assigned to each woman within 3 days in randomized order. Fetal Doppler studies of the umbilical, middle cerebral, and renal arteries and the descending aorta were performed at 7 am (the fasting state) and at 10 am (the fed state or the continuous fasting state).
Results: Twenty women underwent the crossover study. Regardless of the maternal meal state, no significant change was observed in the pulsatility index (PI) of either the umbilical artery (n = 20), the middle cerebral artery (n = 19), or the descending aorta (n = 15). However, the PI of the fetal renal artery decreased significantly after maternal meal ingestion (n = 14) (phase A, 2.36 ± 0.16 versus 2.09 ± 0.33; P = .021). There was no such change in the PI after prolonged fasting (phase B, 2.44 ± 0.32 versus 2.39 ± 0.44; P = .75).
Conclusion: Fetal renal artery resistance decreased after maternal meal ingestion in normally grown fetuses during late pregnancy. This decrease in the resistance may be associated with increased fetal urine production after maternal meals. |
| doi_str_mv | 10.1016/S0029-7844(97)00281-0 |
| format | Article |
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Methods: A simple crossover blinded study was designed for late uncomplicated singleton pregnancies. After overnight fasting, two different maternal meal states were tested. In one state, pregnant women had a standard 600-kcal breakfast at 8 am (phase A). The other state consisted of maintaining fasting (phase B). Both states were assigned to each woman within 3 days in randomized order. Fetal Doppler studies of the umbilical, middle cerebral, and renal arteries and the descending aorta were performed at 7 am (the fasting state) and at 10 am (the fed state or the continuous fasting state).
Results: Twenty women underwent the crossover study. Regardless of the maternal meal state, no significant change was observed in the pulsatility index (PI) of either the umbilical artery (n = 20), the middle cerebral artery (n = 19), or the descending aorta (n = 15). However, the PI of the fetal renal artery decreased significantly after maternal meal ingestion (n = 14) (phase A, 2.36 ± 0.16 versus 2.09 ± 0.33; P = .021). There was no such change in the PI after prolonged fasting (phase B, 2.44 ± 0.32 versus 2.39 ± 0.44; P = .75).
Conclusion: Fetal renal artery resistance decreased after maternal meal ingestion in normally grown fetuses during late pregnancy. This decrease in the resistance may be associated with increased fetal urine production after maternal meals.</description><identifier>ISSN: 0029-7844</identifier><identifier>EISSN: 1873-233X</identifier><identifier>DOI: 10.1016/S0029-7844(97)00281-0</identifier><identifier>PMID: 9277640</identifier><identifier>CODEN: OBGNAS</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Adult ; Biological and medical sciences ; Cross-Over Studies ; Eating - physiology ; Female ; Fetus - physiology ; Gynecology. Andrology. Obstetrics ; Humans ; Management. Prenatal diagnosis ; Medical sciences ; Pregnancy ; Pregnancy. Fetus. Placenta ; Random Allocation ; Renal Artery - physiology ; Renal Circulation - physiology</subject><ispartof>Obstetrics and gynecology (New York. 1953), 1997-09, Vol.90 (3), p.340-343</ispartof><rights>1997 The American College of Obstetricians and Gynecologists</rights><rights>1997 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4344-22050d18890b6a25217ca5c72e2318f6529794a7bdab68b2015ed5ba4af501423</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2785857$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/9277640$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Yasuhi, Ichiro</creatorcontrib><creatorcontrib>Hirai, Masanao</creatorcontrib><creatorcontrib>Oka, Satoshi</creatorcontrib><creatorcontrib>Nakajima, Hisayoshi</creatorcontrib><creatorcontrib>Ishimaru, Tadayuki</creatorcontrib><title>Effect of Maternal Meal Ingestion on Fetal Renal Artery Resistance</title><title>Obstetrics and gynecology (New York. 1953)</title><addtitle>Obstet Gynecol</addtitle><description>Objective: To examine whether maternal meal ingestion affects the fetal circulation in uncomplicated pregnancies.
Methods: A simple crossover blinded study was designed for late uncomplicated singleton pregnancies. After overnight fasting, two different maternal meal states were tested. In one state, pregnant women had a standard 600-kcal breakfast at 8 am (phase A). The other state consisted of maintaining fasting (phase B). Both states were assigned to each woman within 3 days in randomized order. Fetal Doppler studies of the umbilical, middle cerebral, and renal arteries and the descending aorta were performed at 7 am (the fasting state) and at 10 am (the fed state or the continuous fasting state).
Results: Twenty women underwent the crossover study. Regardless of the maternal meal state, no significant change was observed in the pulsatility index (PI) of either the umbilical artery (n = 20), the middle cerebral artery (n = 19), or the descending aorta (n = 15). However, the PI of the fetal renal artery decreased significantly after maternal meal ingestion (n = 14) (phase A, 2.36 ± 0.16 versus 2.09 ± 0.33; P = .021). There was no such change in the PI after prolonged fasting (phase B, 2.44 ± 0.32 versus 2.39 ± 0.44; P = .75).
Conclusion: Fetal renal artery resistance decreased after maternal meal ingestion in normally grown fetuses during late pregnancy. This decrease in the resistance may be associated with increased fetal urine production after maternal meals.</description><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Cross-Over Studies</subject><subject>Eating - physiology</subject><subject>Female</subject><subject>Fetus - physiology</subject><subject>Gynecology. Andrology. Obstetrics</subject><subject>Humans</subject><subject>Management. Prenatal diagnosis</subject><subject>Medical sciences</subject><subject>Pregnancy</subject><subject>Pregnancy. Fetus. Placenta</subject><subject>Random Allocation</subject><subject>Renal Artery - physiology</subject><subject>Renal Circulation - physiology</subject><issn>0029-7844</issn><issn>1873-233X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkd9LHDEQx4O06Gn9E4R7KKU-rE6yySZ5Kir-AkWoFvoWstlZje7tnslexf_eOe-410JImJnvNzP5hLEDDkcceHV8DyBsoY2UP60-pMDwArbYhBtdFqIs_35hk41kh-3m_AxARltus20rtK4kTNjpedtiGKdDO731I6bed9NbpO26f8Q8xqGf0rrAkVK_cVk9SSR7pyDHPPo-4Df2tfVdxv31ucf-XJw_nF0VN3eX12cnN0WQpZSFEKCg4cZYqCsvlOA6eBW0QFFy01ZKWG2l13Xj68rUArjCRtVe-lYBl6LcYz9W987T8Lqg4dws5oBd53scFtlpK6TWypBQrYQhDTknbN08xZlP746DW7Jzn-zcEoyz2n2yc0C-g3WDRT3DZuNaw6L693Xd5-C7NtHrY97IhDbKKE0yuZK9DR2hyi_d4g2TeyKq4xM1A6iEgoJbq8FSVCxTkmy_VjYkhv8iOXKISHybmOiHXDPE_8z_AUxfmCY</recordid><startdate>199709</startdate><enddate>199709</enddate><creator>Yasuhi, Ichiro</creator><creator>Hirai, Masanao</creator><creator>Oka, Satoshi</creator><creator>Nakajima, Hisayoshi</creator><creator>Ishimaru, Tadayuki</creator><general>Elsevier Inc</general><general>The American College of Obstetricians and Gynecologists</general><general>Elsevier Science</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>199709</creationdate><title>Effect of Maternal Meal Ingestion on Fetal Renal Artery Resistance</title><author>Yasuhi, Ichiro ; Hirai, Masanao ; Oka, Satoshi ; Nakajima, Hisayoshi ; Ishimaru, Tadayuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4344-22050d18890b6a25217ca5c72e2318f6529794a7bdab68b2015ed5ba4af501423</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Adult</topic><topic>Biological and medical sciences</topic><topic>Cross-Over Studies</topic><topic>Eating - physiology</topic><topic>Female</topic><topic>Fetus - physiology</topic><topic>Gynecology. Andrology. Obstetrics</topic><topic>Humans</topic><topic>Management. Prenatal diagnosis</topic><topic>Medical sciences</topic><topic>Pregnancy</topic><topic>Pregnancy. Fetus. Placenta</topic><topic>Random Allocation</topic><topic>Renal Artery - physiology</topic><topic>Renal Circulation - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yasuhi, Ichiro</creatorcontrib><creatorcontrib>Hirai, Masanao</creatorcontrib><creatorcontrib>Oka, Satoshi</creatorcontrib><creatorcontrib>Nakajima, Hisayoshi</creatorcontrib><creatorcontrib>Ishimaru, Tadayuki</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Obstetrics and gynecology (New York. 1953)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yasuhi, Ichiro</au><au>Hirai, Masanao</au><au>Oka, Satoshi</au><au>Nakajima, Hisayoshi</au><au>Ishimaru, Tadayuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Maternal Meal Ingestion on Fetal Renal Artery Resistance</atitle><jtitle>Obstetrics and gynecology (New York. 1953)</jtitle><addtitle>Obstet Gynecol</addtitle><date>1997-09</date><risdate>1997</risdate><volume>90</volume><issue>3</issue><spage>340</spage><epage>343</epage><pages>340-343</pages><issn>0029-7844</issn><eissn>1873-233X</eissn><coden>OBGNAS</coden><abstract>Objective: To examine whether maternal meal ingestion affects the fetal circulation in uncomplicated pregnancies.
Methods: A simple crossover blinded study was designed for late uncomplicated singleton pregnancies. After overnight fasting, two different maternal meal states were tested. In one state, pregnant women had a standard 600-kcal breakfast at 8 am (phase A). The other state consisted of maintaining fasting (phase B). Both states were assigned to each woman within 3 days in randomized order. Fetal Doppler studies of the umbilical, middle cerebral, and renal arteries and the descending aorta were performed at 7 am (the fasting state) and at 10 am (the fed state or the continuous fasting state).
Results: Twenty women underwent the crossover study. Regardless of the maternal meal state, no significant change was observed in the pulsatility index (PI) of either the umbilical artery (n = 20), the middle cerebral artery (n = 19), or the descending aorta (n = 15). However, the PI of the fetal renal artery decreased significantly after maternal meal ingestion (n = 14) (phase A, 2.36 ± 0.16 versus 2.09 ± 0.33; P = .021). There was no such change in the PI after prolonged fasting (phase B, 2.44 ± 0.32 versus 2.39 ± 0.44; P = .75).
Conclusion: Fetal renal artery resistance decreased after maternal meal ingestion in normally grown fetuses during late pregnancy. This decrease in the resistance may be associated with increased fetal urine production after maternal meals.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>9277640</pmid><doi>10.1016/S0029-7844(97)00281-0</doi><tpages>4</tpages></addata></record> |
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| subjects | Adult Biological and medical sciences Cross-Over Studies Eating - physiology Female Fetus - physiology Gynecology. Andrology. Obstetrics Humans Management. Prenatal diagnosis Medical sciences Pregnancy Pregnancy. Fetus. Placenta Random Allocation Renal Artery - physiology Renal Circulation - physiology |
| title | Effect of Maternal Meal Ingestion on Fetal Renal Artery Resistance |
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