RT Book, Section
A1 Hunter, John G.
A1 Spight, Donn H.
A1 Sandone, Corinne
A1 Fairman, Jennifer E.
SR Print(0)
ID 1162532092
T1 Pyloromyotomy for Pyloric Stenosis
T2 Atlas of Minimally Invasive Surgical Operations
YR 2018
FD 2018
PB McGraw-Hill Education
PP New York, NY
SN 9780071449052
LK accesssurgery.mhmedical.com/content.aspx?aid=1162532092
RD 2024/04/25
AB Pyloric  stenosis  remains  the  most  frequent  surgical  cause  of  vomiting  in  infancy  since  its  original  description  more  than  100  years  ago.  The  etiology  of  this  disease  is  still  uncertain,  but  it  most  commonly  presents  between  2  and  8  weeks  of  age  and  rarely  up  to  3  months.  The  typical  presentation  consists  of  repeated,  nonbilious  emesis  that  can  become  projectile  in  nature.  The  presence  of  bilious  emesis  dictates  a  different  workup,  as  this  is  almost  never  pyloric  stenosis.  Diagnosis  is  made  most  frequently  with  ultrasound.  A  pylorus  that  measures  greater  than  3  mm  thick  and  17  mm  long  and  does  not  open  to  allow  the  passage  of  food  into  the  duodenum  is  diagnostic  for  pyloric  stenosis.  Diagnosis  can  also  be  made  on  exam  by  palpating  for  the  classic  “olive”  in  the  right  upper  quadrant.  This  can  be  facilitated  by  placement  of  a  nasogastric  tube  and  gastric  decompression.