[求助]

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<P>请问能告诉我，使那些原因导致先心病的？想以下的胎儿心脏报告，是二十二周时检查的。请问该如何？</P>
2 w# v/ ~7 \1 e% f: Z2 C<P>胎儿超声心动图报告单</P>
<P>分析：</P>
5 ?6 F5 r2 t6 x, i! R7 R<P><FONT face="Times New Roman">1．  </FONT>可探及切面：四腔心、五腔心、大血管短轴、主动脉弓长轴</P>
. e# P8 @! d9 Z& r: h6 v1 d* {2 n<P><FONT face="Times New Roman">2．  </FONT>右房增大，部分为房化右室，右室小</P>
<P><FONT face="Times New Roman">3．  </FONT>三尖瓣后瓣、各瓣下移，距<FONT face="Times New Roman">MV</FONT>前瓣附着点<FONT face="Times New Roman">5mm,</FONT>三尖瓣<FONT face="Times New Roman">-</FONT>右房侧探及中量返流，<FONT face="Times New Roman">A:0.54CM</FONT>平方。</P>
4 O9 W; @& {+ k& u, s# m3 {. V<P><FONT face="Times New Roman">4．  PFO3.7mm, IVS</FONT>完整，两大血管出处及走行正常</P>
<P><FONT face="Times New Roman">5．  </FONT>胎心率<FONT face="Times New Roman">140</FONT>次<FONT face="Times New Roman">/</FONT>分，<FONT face="Times New Roman"> </FONT>节律整齐</P>
7 y9 j# Z, f2 S7 C% P; T5 r3 [- x<P><FONT face="Times New Roman">6．  </FONT>脐带<FONT face="Times New Roman">S/D2.3, RI0.57, </FONT>颈部未见脐带压迹及绕颈脐带血流</P>
8 N6 p: {2 C$ q9 V! T7 ]<P><FONT face="Times New Roman">7．  C/T: 0.37</FONT></P>
4 R$ d  \1 M" b: ?<P><FONT face="Times New Roman">8．  </FONT>胎心心包、胸腔、腹腔均见弧形液暗区，深度分别为<FONT face="Times New Roman">4.8mm, 6.1mm, 8.5mm, </FONT>并可见胎儿皮下水肿征象。</P>
9 }8 w: @/ Q" ^5 B- I6 ~<P><FONT face="Times New Roman">
8 o8 N$ u3 r! C2 B<br></FONT>
4 m9 J$ x! J  @& l5 f7 |; R% `<p>
<P>超声提示：</P>
<P><FONT face="Times New Roman">1．  </FONT>胎儿三尖瓣下移畸形，三尖瓣关闭不全（中度）</P>
<P><FONT face="Times New Roman">2．  </FONT>胎儿水肿</P>
8 P$ S* A  H6 A<P><FONT face="Times New Roman">3．  </FONT>胎儿循环阻力正常</P>
4 p2 V# {- W% T. ?0 u: e<P><FONT face="Times New Roman">4．  </FONT>未见脐带绕颈</P>