Open AccessAcid‐base balance during laparoscopy: the effects of intraperitoneal insufflation of carbon dioxide and nitrous oxide on acid‐base balance during controlled ventilation
Author(s) -
Magno Ricardo,
Medegård Alf,
Bengtsson Rolf,
Tronstad SvenErik
Publication year - 1979
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.3109/00016347909154920
Subject(s) - nitrous oxide , medicine , anesthesia , pneumoperitoneum , insufflation , carbon dioxide , laparoscopy , acid–base homeostasis , respiratory minute volume , ventilation (architecture) , respiratory system , surgery , chemistry , mechanical engineering , organic chemistry , engineering
. During laparoscopy the carbon dioxide used to achieve a pneumoperitoneum is absorbed from the peritoneal cavity into the blood. The object of the present study was to clarify certain aspects concerned with anesthetic and ventilatory techniques, mostly in connection with the comparison between the effects of insufflation of either carbon dioxide or nitrous oxide. Anesthesia included ventilation with a volume controlled ventilator in curarised patients. Respiratory volumes were calculated according to the patienťs body area. The results show a sharp rise in P a CO 2 and a fall in pH after intraperitoneal insufflation with carbon dioxide, while no changes were observed when nitrous oxide was used. The clinical consequences of these Findings are discussed.