Time‐interval analysis of ductus venosus flow velocity waveforms in twin‐to‐twin transfusion syndrome treated with laser surgery
ABSTRACT Objectives To investigate time‐interval variables of ductus venosus (DV) flow velocity waveforms (FVWs) in twin‐to‐twin transfusion syndrome (TTTS), comparing the results with reference ranges from normal singleton fetuses. The impact of laser surgery and the effect of prognostic factors we...
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| Veröffentlicht in: | Ultrasound in obstetrics & gynecology 2015-05, Vol.45 (5), p.544-550 |
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| container_title | Ultrasound in obstetrics & gynecology |
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| creator | Tachibana, D. Glosemeyer, P. Diehl, W. Nakagawa, K. Wada, N. Kurihara, Y. Fukui, M. Koyama, M. Hecher, K. |
| description | ABSTRACT
Objectives
To investigate time‐interval variables of ductus venosus (DV) flow velocity waveforms (FVWs) in twin‐to‐twin transfusion syndrome (TTTS), comparing the results with reference ranges from normal singleton fetuses. The impact of laser surgery and the effect of prognostic factors were also evaluated.
Methods
In 107 TTTS cases, DV‐FVWs of both recipients and donors were recorded 1 day before and 2 days after laser therapy. Time intervals for systolic (S) and early diastolic (D) peaks were analyzed retrospectively with regard to acceleration time (acc‐S and acc‐D for S and D, respectively) and deceleration time (dec‐S and dec‐D for S and D, respectively). For each variable, Z‐scores were calculated with respect to previously reported normal reference ranges.
Results
Z‐scores for all variables showed statistically significant differences from those observed previously in normal fetuses, with the exception of dec‐S of donors. The most striking differences were observed in longer dec‐S of recipients (P |
| doi_str_mv | 10.1002/uog.13449 |
| format | Article |
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Objectives
To investigate time‐interval variables of ductus venosus (DV) flow velocity waveforms (FVWs) in twin‐to‐twin transfusion syndrome (TTTS), comparing the results with reference ranges from normal singleton fetuses. The impact of laser surgery and the effect of prognostic factors were also evaluated.
Methods
In 107 TTTS cases, DV‐FVWs of both recipients and donors were recorded 1 day before and 2 days after laser therapy. Time intervals for systolic (S) and early diastolic (D) peaks were analyzed retrospectively with regard to acceleration time (acc‐S and acc‐D for S and D, respectively) and deceleration time (dec‐S and dec‐D for S and D, respectively). For each variable, Z‐scores were calculated with respect to previously reported normal reference ranges.
Results
Z‐scores for all variables showed statistically significant differences from those observed previously in normal fetuses, with the exception of dec‐S of donors. The most striking differences were observed in longer dec‐S of recipients (P < 0.001) and longer dec‐D of donors (P < 0.001). Laser therapy showed significant impact on dec‐S and acc‐D in recipients and on all variables in donors. Regarding the short‐term prognosis, acc‐S and dec‐S showed significant differences for the prediction of intrauterine fetal demise in donors (P = 0.009 and P = 0.011, respectively).
Conclusion
This study demonstrates that time‐interval variables of DV‐FVWs may differentiate the characteristic hemodynamic changes caused by unbalanced blood volume between recipients and donors. Copyright © 2014 ISUOG. Published by John Wiley & Sons Ltd.</description><identifier>ISSN: 0960-7692</identifier><identifier>EISSN: 1469-0705</identifier><identifier>DOI: 10.1002/uog.13449</identifier><identifier>PMID: 24975921</identifier><identifier>CODEN: UOGYFJ</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>Blood Flow Velocity ; ductus venosus ; Female ; Fetofetal Transfusion - diagnostic imaging ; Fetofetal Transfusion - embryology ; Fetofetal Transfusion - physiopathology ; Fetofetal Transfusion - surgery ; Fetoscopy - methods ; Fetus - blood supply ; Gestational Age ; Humans ; laser surgery ; Laser Therapy - methods ; monochorionic twins ; Pregnancy ; Prognosis ; Reference Values ; Retrospective Studies ; time‐related analysis ; twin‐to‐twin transfusion syndrome ; Ultrasonography, Prenatal ; Umbilical Veins - diagnostic imaging ; Umbilical Veins - embryology</subject><ispartof>Ultrasound in obstetrics & gynecology, 2015-05, Vol.45 (5), p.544-550</ispartof><rights>Copyright © 2014 ISUOG. Published by John Wiley & Sons Ltd</rights><rights>Copyright © 2014 ISUOG. Published by John Wiley & Sons Ltd.</rights><rights>Copyright © 2015 ISUOG. Published by John Wiley & Sons Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4919-f6c70d410d062e86f814da9d550bc84e99d5bdbe352d500b50304d608a063bab3</citedby><cites>FETCH-LOGICAL-c4919-f6c70d410d062e86f814da9d550bc84e99d5bdbe352d500b50304d608a063bab3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fuog.13449$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fuog.13449$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,778,782,1414,1430,27911,27912,45561,45562,46396,46820</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24975921$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tachibana, D.</creatorcontrib><creatorcontrib>Glosemeyer, P.</creatorcontrib><creatorcontrib>Diehl, W.</creatorcontrib><creatorcontrib>Nakagawa, K.</creatorcontrib><creatorcontrib>Wada, N.</creatorcontrib><creatorcontrib>Kurihara, Y.</creatorcontrib><creatorcontrib>Fukui, M.</creatorcontrib><creatorcontrib>Koyama, M.</creatorcontrib><creatorcontrib>Hecher, K.</creatorcontrib><title>Time‐interval analysis of ductus venosus flow velocity waveforms in twin‐to‐twin transfusion syndrome treated with laser surgery</title><title>Ultrasound in obstetrics & gynecology</title><addtitle>Ultrasound Obstet Gynecol</addtitle><description>ABSTRACT
Objectives
To investigate time‐interval variables of ductus venosus (DV) flow velocity waveforms (FVWs) in twin‐to‐twin transfusion syndrome (TTTS), comparing the results with reference ranges from normal singleton fetuses. The impact of laser surgery and the effect of prognostic factors were also evaluated.
Methods
In 107 TTTS cases, DV‐FVWs of both recipients and donors were recorded 1 day before and 2 days after laser therapy. Time intervals for systolic (S) and early diastolic (D) peaks were analyzed retrospectively with regard to acceleration time (acc‐S and acc‐D for S and D, respectively) and deceleration time (dec‐S and dec‐D for S and D, respectively). For each variable, Z‐scores were calculated with respect to previously reported normal reference ranges.
Results
Z‐scores for all variables showed statistically significant differences from those observed previously in normal fetuses, with the exception of dec‐S of donors. The most striking differences were observed in longer dec‐S of recipients (P < 0.001) and longer dec‐D of donors (P < 0.001). Laser therapy showed significant impact on dec‐S and acc‐D in recipients and on all variables in donors. Regarding the short‐term prognosis, acc‐S and dec‐S showed significant differences for the prediction of intrauterine fetal demise in donors (P = 0.009 and P = 0.011, respectively).
Conclusion
This study demonstrates that time‐interval variables of DV‐FVWs may differentiate the characteristic hemodynamic changes caused by unbalanced blood volume between recipients and donors. Copyright © 2014 ISUOG. Published by John Wiley & Sons Ltd.</description><subject>Blood Flow Velocity</subject><subject>ductus venosus</subject><subject>Female</subject><subject>Fetofetal Transfusion - diagnostic imaging</subject><subject>Fetofetal Transfusion - embryology</subject><subject>Fetofetal Transfusion - physiopathology</subject><subject>Fetofetal Transfusion - surgery</subject><subject>Fetoscopy - methods</subject><subject>Fetus - blood supply</subject><subject>Gestational Age</subject><subject>Humans</subject><subject>laser surgery</subject><subject>Laser Therapy - methods</subject><subject>monochorionic twins</subject><subject>Pregnancy</subject><subject>Prognosis</subject><subject>Reference Values</subject><subject>Retrospective Studies</subject><subject>time‐related analysis</subject><subject>twin‐to‐twin transfusion syndrome</subject><subject>Ultrasonography, Prenatal</subject><subject>Umbilical Veins - diagnostic imaging</subject><subject>Umbilical Veins - embryology</subject><issn>0960-7692</issn><issn>1469-0705</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqN0bFu1TAUBmALUdFL24EXQJZYYEh7nNhOPKIKClKlLu0cOfFJcZXYxY5vlK0TM8_Ik-DbWxiQkLr42Eef_sE_IW8YnDKA8iz521NWca5ekA3jUhVQg3hJNqAkFLVU5SF5HeMdAEheyVfksOSqFqpkG_Lj2k746-GndTOGrR6pdnpco43UD9Skfk6RbtH5mOcw-iU_Rt_beaWL3uLgwxSpdXRerMsps98dy24RtItDitY7Gldngp8wL1HPaOhi52901BEDjSncYliPycGgx4gnT_OI3Hz-dH3-pbi8uvh6_vGy6LliqhhkX4PhDAzIEhs5NIwbrYwQ0PUNR5WvnemwEqURAJ2ACriR0GiQVae76oi83-feB_89YZzbycYex1E79Cm2TDbAhQKpnkFrKZRgwDJ99w-98ynkj3xUgpUVK2VWH_aqDz7GgEN7H-ykw9oyaHc9trnH9rHHbN8-JaZuQvNX_ikug7M9WOyI6_-T2puri33kbwOCrIE</recordid><startdate>201505</startdate><enddate>201505</enddate><creator>Tachibana, D.</creator><creator>Glosemeyer, P.</creator><creator>Diehl, W.</creator><creator>Nakagawa, K.</creator><creator>Wada, N.</creator><creator>Kurihara, Y.</creator><creator>Fukui, M.</creator><creator>Koyama, M.</creator><creator>Hecher, K.</creator><general>John Wiley & Sons, Ltd</general><general>Wiley Subscription Services, Inc</general><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>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>K9.</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>201505</creationdate><title>Time‐interval analysis of ductus venosus flow velocity waveforms in twin‐to‐twin transfusion syndrome treated with laser surgery</title><author>Tachibana, D. ; Glosemeyer, P. ; Diehl, W. ; Nakagawa, K. ; Wada, N. ; Kurihara, Y. ; Fukui, M. ; Koyama, M. ; Hecher, K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4919-f6c70d410d062e86f814da9d550bc84e99d5bdbe352d500b50304d608a063bab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Blood Flow Velocity</topic><topic>ductus venosus</topic><topic>Female</topic><topic>Fetofetal Transfusion - diagnostic imaging</topic><topic>Fetofetal Transfusion - embryology</topic><topic>Fetofetal Transfusion - physiopathology</topic><topic>Fetofetal Transfusion - surgery</topic><topic>Fetoscopy - methods</topic><topic>Fetus - blood supply</topic><topic>Gestational Age</topic><topic>Humans</topic><topic>laser surgery</topic><topic>Laser Therapy - methods</topic><topic>monochorionic twins</topic><topic>Pregnancy</topic><topic>Prognosis</topic><topic>Reference Values</topic><topic>Retrospective Studies</topic><topic>time‐related analysis</topic><topic>twin‐to‐twin transfusion syndrome</topic><topic>Ultrasonography, Prenatal</topic><topic>Umbilical Veins - diagnostic imaging</topic><topic>Umbilical Veins - embryology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tachibana, D.</creatorcontrib><creatorcontrib>Glosemeyer, P.</creatorcontrib><creatorcontrib>Diehl, W.</creatorcontrib><creatorcontrib>Nakagawa, K.</creatorcontrib><creatorcontrib>Wada, N.</creatorcontrib><creatorcontrib>Kurihara, Y.</creatorcontrib><creatorcontrib>Fukui, M.</creatorcontrib><creatorcontrib>Koyama, M.</creatorcontrib><creatorcontrib>Hecher, K.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Ultrasound in obstetrics & gynecology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tachibana, D.</au><au>Glosemeyer, P.</au><au>Diehl, W.</au><au>Nakagawa, K.</au><au>Wada, N.</au><au>Kurihara, Y.</au><au>Fukui, M.</au><au>Koyama, M.</au><au>Hecher, K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Time‐interval analysis of ductus venosus flow velocity waveforms in twin‐to‐twin transfusion syndrome treated with laser surgery</atitle><jtitle>Ultrasound in obstetrics & gynecology</jtitle><addtitle>Ultrasound Obstet Gynecol</addtitle><date>2015-05</date><risdate>2015</risdate><volume>45</volume><issue>5</issue><spage>544</spage><epage>550</epage><pages>544-550</pages><issn>0960-7692</issn><eissn>1469-0705</eissn><coden>UOGYFJ</coden><abstract>ABSTRACT
Objectives
To investigate time‐interval variables of ductus venosus (DV) flow velocity waveforms (FVWs) in twin‐to‐twin transfusion syndrome (TTTS), comparing the results with reference ranges from normal singleton fetuses. The impact of laser surgery and the effect of prognostic factors were also evaluated.
Methods
In 107 TTTS cases, DV‐FVWs of both recipients and donors were recorded 1 day before and 2 days after laser therapy. Time intervals for systolic (S) and early diastolic (D) peaks were analyzed retrospectively with regard to acceleration time (acc‐S and acc‐D for S and D, respectively) and deceleration time (dec‐S and dec‐D for S and D, respectively). For each variable, Z‐scores were calculated with respect to previously reported normal reference ranges.
Results
Z‐scores for all variables showed statistically significant differences from those observed previously in normal fetuses, with the exception of dec‐S of donors. The most striking differences were observed in longer dec‐S of recipients (P < 0.001) and longer dec‐D of donors (P < 0.001). Laser therapy showed significant impact on dec‐S and acc‐D in recipients and on all variables in donors. Regarding the short‐term prognosis, acc‐S and dec‐S showed significant differences for the prediction of intrauterine fetal demise in donors (P = 0.009 and P = 0.011, respectively).
Conclusion
This study demonstrates that time‐interval variables of DV‐FVWs may differentiate the characteristic hemodynamic changes caused by unbalanced blood volume between recipients and donors. Copyright © 2014 ISUOG. Published by John Wiley & Sons Ltd.</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><pmid>24975921</pmid><doi>10.1002/uog.13449</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Wiley Free Content |
| subjects | Blood Flow Velocity ductus venosus Female Fetofetal Transfusion - diagnostic imaging Fetofetal Transfusion - embryology Fetofetal Transfusion - physiopathology Fetofetal Transfusion - surgery Fetoscopy - methods Fetus - blood supply Gestational Age Humans laser surgery Laser Therapy - methods monochorionic twins Pregnancy Prognosis Reference Values Retrospective Studies time‐related analysis twin‐to‐twin transfusion syndrome Ultrasonography, Prenatal Umbilical Veins - diagnostic imaging Umbilical Veins - embryology |
| title | Time‐interval analysis of ductus venosus flow velocity waveforms in twin‐to‐twin transfusion syndrome treated with laser surgery |
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