Purpose: To describe a techique of using a warming bath to prevent lens fogging during laparoscopy. Materials and Methods: A warming machine (OR Solutions Inc., Chantilly, Virginia, model ORS-2038) containing a sterile water bath maintained at 120°F is used to warm laparoscope lenses during laparoscopic surgery in order to prevent lens fogging. Results: We have used this technique in place of a hot water thermos or defogging solution the past 5 years during hundreds of laparoscopic cases and have noted a significant decrease in lens fogging and the need to clean the lens of water vapor condensate. Conclusions: A water bath capable of maintianing hot water at a stable 120°F is an effective alternative technique for maintaining warm laparoscope lenses and preventing lens fogging during laparoscopy.
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