, In-Young Yoon, Dong Yeon Kim, Sooyoung Cho OxyMask, a novel product, has recently been used to administer oxygen postoperatively to patients who have undergone general anesthesia. This study aimed to evaluate the incidence of hypoxia in patients under general anesthesia upon arrival to the post-anesthesia care unit (PACU) using arterial blood gas analysis, and to compare the effectiveness of OxyMask with a non-rebreathing oxygen mask for oxygen administration.
We retrospectively investigated anesthesia-related data from the electronic medical records of 460 patients treated from April to November 2021. We analyzed patients aged 20 years or older who had undergone general anesthesia and whose perioperative arterial blood gas analysis results were available upon arrival to the PACU. These patients were grouped into the non-rebreathing oxygen mask (n=223) and OxyMask (n=237) groups, and statistical analysis was performed utilizing their anesthesia records.
No patients exhibited hypoxia upon arrival to the recovery room. The oxygen concentration increased after oxygen administration; its concentration during the recovery room period (Δ2 PaO2) was 10.7±42.3 and 13.9±38.5 mmHg in the non-rebreathing oxygen mask and OxyMask groups, respectively. This difference was not statistically significant. Moreover, the arterial oxygen saturation between the end of surgery and upon arrival to the PACU (Δ1 SaO2) and the arterial oxygen saturation 20 minutes after oxygen administration at the PACU (Δ2 SaO2) did not significantly differ between the groups.
OxyMask was not superior to a non-rebreathing oxygen mask in terms of the effectiveness of oxygen supply.
, Sooyoung Cho, Dong Yeon Kim, Seung Hee Yoo Variant angina, which is associated with coronary artery spam, is difficult to recognize on routine preoperative evaluation. Coronary spasm results in myocardial ischemia and even lethal arrhythmia in severe cases. Since patients are unconscious and cannot complain of symptoms during general anesthesia, early detection of such an event is difficult, and it could lead to severe bradycardia or cardiac arrest. We report a case of a patient with previously undiagnosed variant angina who experienced severe hypotension and ventricular fibrillation during general anesthesia.
Citations
, Ji Seon Chae, Minjin Lee, Bo Kyung Kang, Hahck Soo Park, Won-Joong Kim An 84-year-old woman visited our pain clinic with complaints of low back pain and severe radiating pain in the right lower extremity during walking. The patient demonstrated subacute compression fracture of L3 with vacuum change in lumbar spine plain radiographs and MRI which suggest Kummell’s disease. Despite our conservative treatments, she had little back pain relief. Therefore, we planned a percutaneous vertebroplasty. Manual compression could help perform percutaneous vertebroplasty more effectively by expanding the vertebral body. In addition, the spontaneous recovery of vacuum cleft width using negative pressure could help perform the technique more effectively. We successfully performed percutaneous vertebroplasty using these combination therapies for our patient.
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