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IUGR

IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

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Page 1: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

IUGR

Page 2: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

• Defenition

• SGA

• Cause

• Placental insufficiency

• UA

• MCA

• FETAL CVS

Page 3: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine
Page 4: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

• S/D=PSV/EDV

• RI=  PSV‐EDV/PSV

• PI=PSV‐EDV/MEAN

• VASCULAE IMPEDANCE/VASCULAR RESISTANCE

Page 5: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine
Page 6: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

• UTERINE ARTERY

• NORMAL FLOW

• FUNCTION

• TROPHOBLASTIC INVASION

• EARLY DETECTION OF 

• PREECLAMPSIA PI/UTERINE NOTCHING   2ND

TRIMESTER

• IUGR‐‐‐RI 

• UNCLEAR MESSAGES

Page 7: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine
Page 8: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

UMBLICAL ARTERY

• AREAS

• END DIASTOLIC FLOW

• FETAL BREATHING

• DIASTOLIC VELOCITY  

Page 9: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine
Page 10: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

MCA

• BRAIN SPARING EFFECT  =          PI

• LOW ,HIGH

• PSV         =IUGR

• ANEMIA,HYPOXIA   ‐‐‐‐PATHOPHYSIOLOGY

Page 11: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

MEASUREMENT OF MCA/PSV

• AXIAL SECTION ‐‐‐SPHENOID BONE

• CIRCLE OF WILLIS‐‐‐‐ANGLE 0 

• ENLARGE MCA 

• INTERROGATE MCA

• MEASURE PSV

• REPEAT 3‐5 TIMES

• REPEATED WAVEFORMS SHOULD BE SIMILAR 

Page 12: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

• LOW MCA PI• Brain growth post uterine contractions

• Heart rate 

• Severe anemia

• Post transfusion

• Therapeutic amniocentesis 

• Hypoximia/acidemia

Page 13: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

HIGH MCA PI

• UTERINE CONTRACTION 

• HEART RATE 

• OLIGOHYDRAMNOIS

• FETAL HEAD COMPRESSION 

• SUSTAINED HYPOXEMIA /ACIDEMIA

• HYDRANENCEPHALY

• INDOMETHACIN ADMINISTRATION 

Page 14: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine
Page 15: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine
Page 16: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

• DESCENDING AORTA

• SPLENIC ARTERY

• SMA

• ADRENAL ARTERY

• RENAL ARTERY

• SUPERIOR CEREBELLAR ARTERY

Page 17: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

FETAL VENOUS SYSTEM

Page 18: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

FETAL CARDIAC SYSTEMATRIO/VENTRICULAR VALVES

• E=• A=• NORMAL=A>E• MID=   A=E• LATE=   A<E• IUGR E/A   

• MR/TR   

Page 19: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

AORTIC/PULMONARY VALVES

• PEAK VELOCITY  ‐‐‐

• IUGR—

• PLACENTAL RESISTANCE

• RT‐‐‐‐LT VENTRICLE SHIFT

Page 20: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

• NST/UA –NORMAL=NO FETAL ACIDOSIS /HYPOXIA=STAGE 1

• NST‐‐‐NOR   ,  UA‐‐‐ABNORMAL‐‐‐5% HYPOXIA/= STAGE 2

• BOTH ABNORMAL =50% HYPOXIA=STAGE 3 

Page 21: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine

• STAGE 1

• Abnormal UA   PI 

• Abnormal MCA PI

• STAGE 2

• UA—ABSENT

• MCA PSV‐‐‐

• DV PI abnormal

• Umblical vein pulsation 

• STAGE 3 

• DV PI ‐‐‐‐REVERSE

• UV—REVERSED FLOW

Page 22: IUGR - India’s Premier Educational Institution JK.pdf · • uterine artery • normal flow • function • trophoblastic invasion • early detection of • preeclampsia pi/uterine