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Transcutaneous partial pressure of carbon dioxide monitoring during EUS-guided drainage of peripancreatic fluid collections using carbon dioxide insufflation: A prospective study

 Endoscopy Center, Shengjing Hospital, China Medical University, Shenyang, Liaoning Province, China

Correspondence Address:
Sun Siyu,
Endoscopy Center, Shengjing Hospital, China Medical University, No. 36, Sanhao Street, Shenyang, Liaoning Province 110004
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/eus.eus_32_19

PMID: 31249167

Background: Carbon dioxide (CO2) insufflation has become more commonly used in EUS-guided interventions in recent years. However, there is a paucity of information regarding methods by which to monitor in vivo CO2 levels. This study aimed to assess the feasibility of a novel noninvasive method to monitor transcutaneous partial pressure of CO2 [INSIDE:1] levels during EUS-guided drainage of peripancreatic fluid collections (PFCs). The safety of CO2 insufflation in EUS-guided interventions was also investigated. Patients and Methods: Patients who underwent EUS-guided PFC drainage between September 2015 and December 2016 at Shengjing Hospital of China Medical University were prospectively enrolled in this study. [INSIDE:2] was measured in all patients using a noninvasive sensor throughout the procedure. Results: There were 25 patients eligible to be included in this study. The mean procedure time was 53.1 min. The mean [INSIDE:2] level was 40 ± 4 mmHg and 48 ± 5 mmHg before and after the procedure, respectively. The mean peak [INSIDE:2] during the procedure was significantly higher at 53 ± 6 mmHg (P < 0.0001). No complications associated with CO2 insufflation such as CO2 narcosis, gas embolism, or arrhythmias were encountered. Conclusions: [INSIDE:2] monitoring can accurately reflect the level of [INSIDE:3] continuously and noninvasively. CO2 insufflation is safe for patients undergoing relatively complicated EUS-guided drainage of PFCs.

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