Cardiovascular System - Heart Rate Development: Difference between revisions
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[[Category:Cardiovascular]] [[Category:Heart]] | [[Category:Cardiovascular]] [[Category:Heart]] |
Revision as of 11:40, 29 March 2017
Embryology - 19 Apr 2024 Expand to Translate |
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Introduction
Some Recent Findings
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Textbooks
- Human Embryology (2nd ed.) Larson Ch7 p151-188 Heart
- The Developing Human: Clinically Oriented Embryology (6th ed.) Moore and Persaud Ch14: p304-349
- Before we Are Born (5th ed.) Moore and Persaud Ch12; p241-254
- Essentials of Human Embryology Larson Ch7 p97-122 Heart
- Human Embryology Fitzgerald and Fitzgerald Ch13-17: p77-111
Embryonic Heart Rate
In a 1996 study normal successful human gestations were defined by EHR criteria at different early embryonic (34-56 days from last menstrual period) developmental stages (at the earliest stages when embryo length is difficult to measure gestational sac diameters are included). [3]
- Stage 9-10 2 mm embryo (gestational sac diameter of 20 mm) EHR at least 75 beats / minute
- Stage 11-12 5 mm embryo (gestational sac diameter of 30 mm) EHR at least 100 beats / minute
- Stage 16 10 mm embryo EHR at least 120 beats / minute
- Stage 18 15 mm embryo EHR at least 130 beats / minute
Fetal Heart Rate
Week 15 (GA week 17) Fetal Heart Rate audio recording of human embryo heart sounds Fetal Heart Sounds
<html5media>File:Week17 fetal heart rate.mp3</html5media>
Ultrasound Measurement
This movie is a realtime ultrasound recording of the week 12 fetus. The bottom window shows doppler analysis to measure the fetal heart rate.
References
Reviews
<pubmed>20418904</pubmed> <pubmed>19732619</pubmed> <pubmed>17569640</pubmed>
Articles
<pubmed>20595708</pubmed> <pubmed>20492379</pubmed>
Search Pubmed
Search Nov 2010 "Embryonic Heart Rate" All (7589) Review (405) Free Full Text (794)
Search Pubmed: Embryonic Heart Rate
Glossary Links
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Cite this page: Hill, M.A. (2024, April 19) Embryology Cardiovascular System - Heart Rate Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Cardiovascular_System_-_Heart_Rate_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G