The effects of isothermic and hypothermic carbon dioxide pneumoperitoneum on respiratory function test results.
OBJECTIVE
This study investigated the effects of isothermic and hypothermic carbon dioxide, used for pneumoperitoneum during laparoscopic cholecystectomy, on respiratory function test results.


METHODS
Thirty patients who underwent elective laparoscopic cholecystectomy were enrolled in this prospective randomized study. The patients were divided into two groups. Carbon dioxide at 37 degrees C (isothermic) was used in the isothermic group, and carbon dioxide at 21 degrees C (hypothermic) was used in the hypothermic group. Respiratory function tests were performed in the preoperative period and at 12 h after the operation.


RESULTS
Mean forced vital capacity (FVC), forced expiratory volume (FEV1), maximum peak expiratory flow (PEF), and the FEV1/FVC ratio were significantly higher in the isothermic group than in the hypothermic group (P < 0.05).


CONCLUSIONS
Using isothermic carbon dioxide for pneumoperitoneum has fewer negative effects than hypothermic carbon dioxide on respiratory function tests results. Isothermic carbon dioxide may be preferable for patients with respiratory problems.
Uzunkoy
Ali
A
Department of Surgery, Faculty of Medicine, Harran University, 63300 Sanliurfa, Turkey.
Ozgonul
Abdullah
A
Ceylan
Erkan
E
Gencer
Mehmet
M
D000328:Adult; D002245:Carbon Dioxide / Q000008:administration & dosage; D017081:Cholecystectomy, Laparoscopic / Q000009:adverse effects / Q000379:methods*; D005260:Female; D005740:Gases / Q000008:administration & dosage; D006801:Humans; D007035:Hypothermia / Q000150:complications*; D008171:Lung Diseases / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D011028:Pneumoperitoneum, Artificial / Q000009:adverse effects*; D011446:Prospective Studies; D012129:Respiratory Function Tests; D013696:Temperature
D005740:Gases; D002245:Carbon Dioxide