Experimental Model to Test Electrostatic Precipitation Technology in the COVID-19 Era: A Pilot Study.
J Am Coll Surg
; 231(6): 704-712, 2020 12.
Article
in English
| MEDLINE | ID: covidwho-741309
ABSTRACT
BACKGROUND:
In the COVID-19 crisis, laparoscopic surgery is in focus as a relevant source of bioaerosol release. The efficacy of electrostatic aerosol precipitation (EAP) and continuous aerosol evacuation (CAE) to eliminate bioaerosols during laparoscopic surgery was verified. STUDYDESIGN:
Ex-vivo laparoscopic cholecystectomies (LCs) were simulated ± EAP or CAE in Pelvitrainer equipped with swine gallbladders. Release of bioaerosols was initiated by performing high-frequency electrosurgery with a monopolar electro hook (MP-HOOK) force at 40 watts (MP-HOOK40) and 60 watts (MP-HOOK60), as well as by ultrasonic cutting (USC). Particle number concentrations (PNC) of arising aerosols were analyzed with a condensation particle counter (CPC). Aerosol samples were taken within the Pelvitrainer close to the source, outside the Pelvitrainer at the working trocar, and in the breathing zone of the surgeon.RESULTS:
Within the Pelvitrainer, MP-HOOK40 (6.4 × 105 cm-3) and MP-HOOK60 (7.3 × 105 cm-3) showed significantly higher median PNCs compared to USC (4.4 × 105 cm-3) (p = 0.001). EAP led to a significant decrease of the median PNCs in all 3 groups. A high linear correlation with Pearson correlation coefficients of 0.852, 0.825, and 0.759 were observed by comparing MP-HOOK40 (± EAP), MP-HOOK60 (± EAP), and USC (± EAP), respectively. During ex-vivo LC and CAE, significant bioaerosol contaminations of the operating room occurred. Ex-vivo LC with EAP led to a considerable reduction of the bioaerosol concentration.CONCLUSIONS:
EAP was found to be efficient for intraoperative bioaerosol elimination and reducing the risk of bioaerosol exposure for surgical staff.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Infection Control
/
Cholecystectomy, Laparoscopic
/
Infectious Disease Transmission, Patient-to-Professional
/
Aerosols
/
Models, Animal
/
Electrosurgery
/
Static Electricity
Type of study:
Experimental Studies
/
Prognostic study
/
Randomized controlled trials
Limits:
Animals
Language:
English
Journal:
J Am Coll Surg
Journal subject:
Gynecology
/
Obstetrics
Year:
2020
Document Type:
Article
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