Document Detail

Vacuum Assisted Vaginal Delivery Simulation- Quantitation of Subjective Measures of Traction and Detachment Forces.
MedLine Citation:
PMID:  22463718     Owner:  NLM     Status:  Publisher    
Abstract OBJECTIVE: Excessive traction has been alleged as the cause of newborn complications associated with vacuum delivery. We sought to quantify subjective levels of physician vacuum traction in a simulated obstetric delivery model, dependent upon level of training. METHODS: Three groups of physicians, based on training level applied traction (minimal, average, maximal) on a pre-applied vacuum model and forces were continually recorded. Detachment force was recorded with traction in both the pelvic axis and at an oblique angle. RESULTS: Quantified traction force increased from subjective minimal to average to maximal pulls. Within each level, there were no differences between the groups in the average traction force. Detachment force was significantly less when traction was applied at an oblique angle as opposed to the pelvic axis (11.1±0.3 vs 12.2±0.3 Kg). CONCLUSION: Providers appear to be good judges of the force being applied, as a clear escalation in force is noted with minimal, average, and maximal force pulls. There appears to be a relatively short learning curve for use of the vacuum, as junior residents' applied force was not different from those of more experienced practitioners. Using the KIWI device, detachment force is lower when traction is applied at an oblique angle.
Ramy Eskander; Marie Beall; Michael G Ross
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-2
Journal Detail:
Title:  The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians     Volume:  -     ISSN:  1476-4954     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136916     Medline TA:  J Matern Fetal Neonatal Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Dept. of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA and UCLA School of Public Health and Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA.
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