The epidemiology of infantile hypertrophic pyloric stenosis in Sweden 1987-96

Abstract

Aims-To find out whether the incidence of infantile hypertrophic pyloric stenosis (IHPS) has changed over the past decade, and if so, to investigate possible contributory factors. Methods-All infants undergoing pyloromyotomy for IHPS in Sweden between 1987 and 1996 were studied. Using the national patient registers the yearly incidence was determined and evaluated in relation to sex, latitude, urbanisation, and type of surroundings by use of a Poisson model. Results-There was a substantial decline from 2.7/1000 to 0.85/1000 over the time period. The incidence in the south was almost three times greater than in the north. Conclusion-The declining incidence and geographical diVerence suggest that environmental factors are of importance in this disorder. (Arch Dis Child 2001;85:379-381)

The changing epidemiology of infantile hypertrophic pyloric stenosis in Scotland

“…In particular, the factors surrounding its aetiology and variations in incidence all remain elusive. While the incidence of IHPS increased in the UK in the 1970s and 1980s2 3 (a trend also observed in some parts of Europe and the USA), this pattern was not experienced everywhere; areas such as Denmark, Canada and New York experienced either static rates or a decrease in incidence during the same period 3 – 5. Since the 1990s, a sharp decline in the incidence of the condition has been reported in Sweden and Denmark 3 6…”

Is there a correlation between hypertrophic pyloric stenosis and congenital abnormalities of the urinary tract in children?

“…HPS is the most common paediatric surgical disorder that requires surgery for associated emesis in the first few months of life. The incidence of HPS is reported to be approximately 2 to 3.5 in 1000 live births, although rates and trends vary markedly from region to region [1][2][3][4][5].…”

A New Technique for Performing Endoscopic Pyloromyotomy by Gastric Submucosal Tunnel Dissection

“…1,2 It is widely used to treat patients with gastric outlet obstruction syndrome (GOOS), also known as delayed gastric emptying. GOOS is associated with several conditions, including peptic scars, complications after vagotomy, 3,4 hypertrophic pyloric obstruction in infants, 5 complications after esophagectomy with esophagogastric anastomosis, 6 and gastroparesis caused by systemic diseases (eg, diabetes, lupus, Parkinson disease, and scleroderma). 2,7 The natural orifice transluminal endoscopic surgery has inspired endoscopists and surgeons to explore less-invasive treatments for gastrointestinal diseases.…”