Longevity of Patients Born with Myelomeningocele

Abstract

There are limited data concerning the life expectancy for individuals born with myelomeningocele (MM), with and without hydrocephalus. To ascertain such data was our first purpose. We have selected all patients with MM in our computer database, The Patient Data Management System (PDMS/fx). Data were transferred to Excel for primary and SPSS/PC for final analysis by Kaplan-Meier life survival curves. Of the 1,054 patients with MM in the Birth Defects Clinic and the University of Washington Medical Center (UWMC) of Seattle, 505 are now over the age of 21 (391) or have died (114). Follow-up information was available since 1994 for 132, 62% of whom we have had contact within the past 2 years. The second purpose was to identify potential health factors associated with long-term outcome of patients with MM. Patient variables chosen as relevant to survival included hydrocephalus, treatment before or after 1975, and health maintenance determined by outcome for those receiving care within the last 5 years or those last seen before. Age at last appointment and reason for visit were determined in order to identify age-specific health care needs of the adult population. Survival and medical needs were obtained from the UWMC's computer database, Mindscape, and by telephone survey for adult patients not seen in the last 2 years. Death is more frequent earlier in life for those MM patients with hydrocephalus. Ordinary degenerative disorders affect MM patients earlier in life than normals. Our data extend life expectancy for patients with MM and hydrocephalus to age 40 years with some reliability for those treated from 1957 to 1974, but only 24 years for those treated with modern techniques after 1974. More data is needed to determine long-term survival.

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