Analysis of the Potential of Blood Transvascular Sublingual with Light-Emitting Diode Irradiation in COVID-19 Patients: A Pilot Clinical Study

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Photobiomodul Photomed Laser Surg. 2022 Sep;40(9):622-631. doi: 10.1089/photob.2021.0177. Epub 2022 Sep 7.


Background: Due to the high morbidity and mortality rates of this century, the COVID-19 pandemic has had a devastating impact on the health of the global population. Objective: The aim was to evaluate the disturbing impact of in-hospital stay length and the appeal of severe problems for supplemental oxygen for our patients with COVID-19 in moderate stage who were undergoing transvascular blood irradiation onto sublingual vessels. The demand for supplemental oxygen and the serum oxygen levels were measured, and the impact on the length of hospital stay was assessed. Methods: This randomized, prospective, clinical pilot study evaluated the diagnosis of COVID-19 patients admitted to the ventilatory care unit and undergoing treatment protocol usage of light-emitting diode (LED) irradiation by transvascular application onto the sublingual vessels daily. Patients were selected and enrolled into two groups: the Placebo group (n = 7) that received conventional treatment by the device off (LED-off), and the photobiomodulation therapy (PBMT) group (n = 7) that also received the same therapy plus LED irradiation. Results: There was a statistically significant clinical improvement, such as a reduction in serum creatinine, and oxygen usage per few days less in the PBMT group compared with the Placebo group. All patients in the PBMT group had normalized SatO2, while a quarter of patients in the Placebo group required longer O2 supplementation until hospital discharge. Conclusions: The surveillance of clinical improvement in moderate stage indicated that the daily PBMT was able to diminish oxygen supplementation within a short time, besides reducing the hospital stay length in the PBMT group, particularly, when compared with the Placebo group. Clinical Trial Registration number: The study was reviewed by the Ethics Committee in UNINOVE research under number 42325020.6.0000.5511 and approved through number 5,090,119.

PMID:36070590 | DOI:10.1089/photob.2021.0177

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