RT Book, Section
A1 Dooley-Hash, Suzanne
A1 Knoop, Kevin J.
A2 Knoop, Kevin J.
A2 Stack, Lawrence B.
A2 Storrow, Alan B.
A2 Thurman, R. Jason
SR Print(0)
ID 1181041801
T1 Postpartum Perineal Lacerations
T2 The Atlas of Emergency Medicine, 5e
YR 2021
FD 2021
PB McGraw-Hill
PP New York, NY
SN 9781260134940
LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181041801
RD 2024/04/19
AB Lacerations  to  the  perineum  most  commonly  occur  following  a  rapid,  uncontrolled  delivery  of  the  fetal  head.  Postpartum  perineal  lacerations  range  from  minor  to  severe.  First-degree  lacerations  are  limited  to  the  mucosa,  skin,  superficial  subcutaneous,  and  submucosal  tissues.  Second-degree  lacerations  penetrate  deeper  into  the  superficial  fascia  and  transverse  perineal  musculature.  Third-degree  lacerations  extend  through  deeper  tissues  and  disrupt  the  anal  sphincter,  while  fourth-degree  lacerations  extend  through  rectal  mucosa.  These  injuries  can  be  associated  with  significant  maternal  blood  loss  and  multiple  long-term  complications.