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??????QRS?PR??????

??   2010-04-23 18:11   ??2????   ???,,   ?  

???   2010-04-23 18:20 ???????QRS???????P--R????

???   2010-04-23 18:41 ????,?,...

1????P-R>0.20??P?QRS?.

2???????P?QRS??2:1;3:2;4:3????????????????

(1)???-P-R??P?R-R??P;?PR-R?P-P???

(2)???????P-R???QRS???????1:1;2:1;3:1;3:2;4:3??QRS????

????????????QRS?;?????????QRS??

????????????????????????????????????????I

??   2010-11-11 16:50 ???   ???  ???

???   2010-11-11 16:52 ???????????????????????????????????

??   2010-11-11 16:55 ?? ??? ??? ???...

??,?????.???:?`??`?.???,`????.????`???`?`?`?.,???.?????,.
????????,??????,???.
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1.??????????????????????????
2.???I???50/???????????
3.???????: (1)???????????? (2)?-??
4.???????
?
????????

      ?????,P-R ??0.24s,??0.65%~1.1%,50 ??1.3%.
 ?,?????8.7%.???,?,?,,????,??,??P-R ?.
??P-R ????,??.?.
???????,????,????4%~15%,??.??,??????,?,.???,??????.????????,???.