Which age groups have the highest prevalence of intestinal malrotation?

Updated: Dec 19, 2018
  • Author: Denis D Bensard, MD, FACS, FAAP; Chief Editor: Carmen Cuffari, MD  more...
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Answer

Traditional teaching suggests that as many as 40% of patients with malrotation present within the first week of life, 50% in the first month, and 75% in the first year. However, more recent series have shown that malrotation is increasingly identified in adults. A series of 170 patients with intestinal malrotation diagnosed at a single institution between 1992-2009 found that 31% were infants, 21% were aged 1-18 years, and the remaining 48% were adults. [18] Although unusual, there are reports of adults presenting with total small bowel volvulus due to malrotation in adults. [19] A second series found that 42% of patients with a new diagnosis of malrotation were adults. [20]  Reports have even documented congenital malrotation presenting during pregnancy. [21, 22, 23]


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