Surgical Category

No. of Cases

Example Cases

Example Challenges

Orthopedic

11

Hip prosthesis

Elderly patients who require vasopressor support

Genitourinary

2

Prostatectomy

Attention to blood and volume loss

Ear, nose, throat

20

Thyroidectomy

Covered airway with temporary circuit disconnection. Condensation in ETCO₂ connector.

Obstetrics and gynecology

8

Vaginal Hysterectomy

Required 3 doses of ephedrine and 1 dose of phenylephrine after fluid bolus for hypotension

General surgery

13

Colectomy

Nasogastric tube enters trachea and deflates bellows

Vascular

6

Endarterectomy

Inadvertent shutting off of ETCO₂ monitor