After completing this article, readers should be able to: 1. Describe the most serious infection that may result from inappropriate management of the umbilical cord and potential sources. 2. Describe the relationship between infant bacterial colonization and postpartum infection. 3. List the most common neonatal staphylococcal infections. 4. List the factors that affect the timing of cord separation. 5. Delineate the probable causes of drainage from the umbilical stump. This review addresses several aspects of the care of the umbilical cord: how to ligate and cut it, what (if anything) to apply to it, the problems that may be associated with ligation and cutting, and the natural history of cord separation. The traditional method of ligating the umbilical cord was to use string or twine to tie the cord before cutting it. In Southern Sudan, fine stringlike roots are used to tie the cord. More recently in the United States, special cotton tape (umbilical tape) was used and still is found on most trays used for insertion of catheters into umbilical blood vessels. Because the umbilical cord tends to shrink after birth, these types of ligature proved somewhat unreliable in preventing hemorrhage. Although the umbilical arteries tend to constrict rapidly after birth because of the muscular walls, this does not occur with the umbilical vein. Consequently, more efficient and effective methods of ligation were sought in the middle of the 20th century. The first method was to use constricting rubber bands, which were effective, but somewhat difficult to apply. This method recently found favor in a developing country (Ethiopia). However, the more usual method in developed countries currently is plastic or metal clamps, which produce safe, reliable constriction. In particular, the plastic Hollister® clamp (Double-Grip Umbilical Cord Clamp, Hollister, Libertyville, IL) has been very successful in preventing bleeding from the cord. These devices are removed …
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