A lady presented in the emergency department with a stab injury to the left side of the abdomen. She -was hemodynamically stable and a contrast enhanced. CT scan revealed a laceration in spleen. Laparoscopy was planned. The patient's pO2 suddenly dropped as soon as the pneumoperitoneum was created. What is the most likely cause:
Inferior venacava compression
Injury to the left lobe of the diaphragm
Injury to the colon
Gaseous embolism through splenic vessels