TY  - CHAP
M1  - Book, Section
TI  - Infantile Hypertrophic Pyloric Stenosis
A1  - Perger, Lena
A1  - Chen, Mike
A2  - Kline, Mark W.
Y1  - 2018
N1  - 
T2  - Rudolph's Pediatrics, 23e
AB  - Hypertrophic  pyloric  stenosis  (HPS)  is  a  condition  of  infancy  that  occurs  between  2  and  10  weeks  of  age,  most  commonly  between  3  and  6  weeks  of  age.  In  premature  infants,  it  presents  at  a  later  chronological  age,  but  earlier  postconceptional  age.  It  is  characterized  by  hypertrophy  of  the  circular  muscle  of  the  pylorus  causing  gastric  outlet  obstruction.  Its  incidence  is  1  to  5  per  1000  births  in  white  infants.  It  is  less  common  in  African  Americans  and  least  common  in  the  Asian  population.  It  is  more  common  in  boys  with  a  male:female  ratio  of  4:1.  Sharp  decreases  in  incidence  over  the  1990s  have  been  reported  from  several  European  countries,  while  the  incidence  in  the  United  States  appears  to  be  stable  but  varies  widely  by  state.  
SN  - 
PB  - McGraw-Hill Education
CY  - New York, NY
Y2  - 2024/04/20
UR  - accesspediatrics.mhmedical.com/content.aspx?aid=1182907785
ER  -