Maternal and neonatal outcomes in vacuum-assisted delivery with the Kiwi Omni Cup and Malmström metal cup.

Aim To evaluate the effects of different types of vacuum cups on maternal and neonatal outcomes following assisted vaginal delivery. Methods A retrospective cohort study was undertaken of all vacuum-assisted deliveries performed over a period of 2 years. Patients were divided into two groups according to whether a Kiwi Omni Cup ( n = 230) or Malmström metal cup ( n = 98) was used. Maternal outcomes included maternal genital tract injury and total blood loss. Neonatal outcomes included Apgar score, umbilical cord blood gases, neonatal scalp injury and time spent in the neonatal unit. Results Maternal or neonatal outcomes and failure rates did not differ between the two groups, however, the duration of the procedure and the fundal pressure maneuver was more frequent in the Malmström group. Conclusion The results of this study suggest that the Kiwi Omni Cup and Malmström metal cup vacuum extractors are safe and functionally effective for vacuum-assisted delivery. [ABSTRACT FROM AUTHOR]