After completion of this article, the reader should be able to state the prevalence of idiopathic hydramnios, recall the lack of data relating to outcome, explain that there is a 2- to 5-fold increase in the risk of perinatal mortality, and summarize the lack of consensus in monitoring pregnancies afflicted with idiopathic hydramnios.

CDC invited a large number of external reviewers representing a wide range of stakeholders. The expert reviewers listed above provided comments by the time they were due and the document was finalized. vi INTIMATE PARTNER VIOLENCE: UNIFORM DEFINITIONS AND RECOMMENDED DATA ELEMENTS ACKNOWLEDGMENTSThe authors would like to acknowledge those who authored the original version of Intimate Partner Violence Surveillance: Uniform Definitions and Recommended Data Elements, Linda E. Saltzman, Janet F. Fanslow, Pamela M. McMahon, and Gene A. Shelley. Their authorship of the IPV Uniform Definitions and Recommended Data Elements provided the foundation from which we worked. Much of their work is retained in this version.In addition to the panel members and external reviewers who helped to create and provide comments on this and earlier drafts, we would like to thank the following people for their contributions to the panel meeting and document revision process: Kathleen Rutherford, for helping to plan and facilitate the expert panel meeting; Merle Hamburger, Melanie LaGarde, and Mikel Walters for their helpful assistance in planning the expert panel meeting; Julie Gazmararian, Melissa Merrick, and Mikel Walters for their help with summarizing the notes from the meeting; Mark Conner for developing the layout; and Alida Knuth for coordinating graphic design and printing services.Recognizing the need to improve the quality of the available IPV data, the National Center for Injury Prevention and Control (NCIPC), Centers for Disease Control and Prevention (CDC), initiated a process to promote consistency in the use of terminology and data collection related to IPV. In 1999, the NCIPC published Version 1.0 of Intimate Partner Violence Surveillance: Uniform Definitions and Recommended Data Elements (RDE). 5 Version 1.0 was developed through an extensive consultative process beginning with an Expert Panel convened in March 1996 (Appendix 1). A number of external reviewers were also consulted, including federal and international partners, state health department representatives, professional and medical organizations, coalitions, and researchers.

Postpartum hemorrhage remains a leading cause of maternal morbidity and mortality in the United States. Comprehensive hemorrhage protocols have been shown to improve outcomes related to postpartum hemorrhage, and a critical component in these processes include communication, teamwork, and team-based practice/simulation. As medicine becomes increasingly complex, the ability to practice in a safe setting is ever more critical, especially for low-volume, high-stakes events such as postpartum hemorrhage. These events require well-functioning teams and systems coupled with rapid assessment and appropriate clinical action to ensure best patient outcomes. We have shown that a multidisciplinary in situ simulation exercise improves self-reported comfort with managing obstetric emergencies, and is a safe and effective way to practice skills and improve systems processes in the health care setting.