Hyperbaric Oxygen Treatment Enhances Regeneration of the Rat Sciatic Nerve

1998 ◽  
Vol 149 (2) ◽  
pp. 433-438 ◽  
Author(s):  
Tomas Haapaniemi ◽  
Göran Nylander ◽  
Martin Kanje ◽  
Lars Dahlin
Keyword(s):  
Sciatic Nerve ◽  
Hyperbaric Oxygen ◽  
Hyperbaric Oxygen Treatment ◽  
Rat Sciatic Nerve ◽  
Oxygen Treatment

scholarly journals Protective Effect of Hyperbaric Oxygen Treatment on Axon Degeneration after Acute Motor Axonal Neuropathy

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Ni Komang Sri Dewi Untari ◽  
Kurnia Kusumastuti ◽  
Guritno Suryokusumo ◽  
I Ketut Sudiana
Keyword(s):  
Spinal Cord ◽  
Sciatic Nerve ◽  
Protective Effect ◽  
Hyperbaric Oxygen ◽  
Axonal Neuropathy ◽  
Axon Degeneration ◽  
Hyperbaric Oxygen Treatment ◽  
Acute Motor Axonal Neuropathy ◽  
Oxygen Treatment ◽  
Neuronal Swelling

Objectives. Acute motor axonal neuropathy (AMAN) is a disease that leads to acute flaccid paralysis and may result from the binding of antibody and antigen to the spinal cord. The objective of this study is to evaluate the protective effect of hyperbaric oxygen treatment (HBOT) on axon degeneration of the spinal cord and sciatic nerve of the AMAN model rabbit. Axonal degeneration was assessed by evaluating glutathione (GSH) activity, interleukin-1β (IL-1β) expression, and clinical and histopathological features. Methods. Twenty-one New Zealand rabbits were divided into three groups. The treatment group was exposed to 100% oxygen at 2.4 ATA 90 minutes for 10 days at a decompression rate of 2.9 pounds per square inch/minute. GSH level was evaluated using an enzyme-linked immune-sorbent assay. An expression of IL-1β in the spinal cord was determined by immunohistochemistry. Clinical appearances were done by motor scale and body weight. Histological features observed neuronal swelling and inflammatory infiltration in the sagittal lumbar region and the undulation of the longitudinal sciatic nerve. Results. Rabbits exposed to HBO had high GSH activity levels ( p < 0.05 ) but unexpectedly had high IL1β expression ( p > 0.05 ). In addition, the HBO-exposed rabbits had a better degree of undulation, the size of neuronal swelling was smaller, the number of macrophages was higher, and motor function was better than the AMAN model rabbits ( p < 0.05 ). Conclusions. These findings indicate that HBO therapy can decrease axon degeneration by triggering GSH activity, increasing IL-1β level, and restoring tissues and motor status. In conclusion, HBO has a protective effect on axon degeneration of the spinal cord and sciatic nerve of the AMAN model rabbit.

Hyperoxic myopia: a case series of four divers

2020 ◽  
pp. 261-265
Author(s):  
Jonathan W. Brügger ◽  
Glenn A. Rauscher ◽  
John P. Florian ◽  
Keyword(s):  
Hyperbaric Oxygen ◽  
Prolonged Exposure ◽  
Case Series ◽  
Oxygen Toxicity ◽  
Hyperbaric Oxygen Treatment ◽  
Subjective Data ◽  
Residual Symptoms ◽  
Oxygen Treatment ◽  
Blurry Vision ◽  
Record Review

Hyperoxic myopia is a phenomenon reported in individuals who have prolonged exposure to an increased partial pressure of oxygen (PO2) and subsequently have a myopic (nearsighted) change in their vision. To date, there are numerous accounts of hyperoxic myopia in dry hyperbaric oxygen treatment patients; however, there have been only three confirmed cases reported in wet divers. This case series adds four confirmed cases of hyperoxic myopia in wet divers using 1.35 atmospheres (ATM) PO2 at the Navy Experimental Diving Unit (NEDU). The four divers involved were the first author’s patients at NEDU. Conditions for two divers were confirmed via record review, whereas the other two divers were diagnosed by the first author. All subjects were interviewed to correlate subjective data with objective findings. Each subject completed five consecutive six-hour hyperoxic (PO2 of 1.35 ATM) dives with 18-hour surface intervals. Each individual was within the U. S. Navy Dive Manual’s standards for general health. Visual acuity was measured prior to diving. Within three to four days after diving, the individuals reported blurry vision with an associated myopic refraction shift. Each diver had spontaneous resolution of his myopia over the next two to three weeks, with no significant residual symptoms. The divers in this case series were exposed to an increased PO2 (1.35 ATM for 30 hours over five days), a lesser exposure than that in other reports of hyperoxic myopia in wet divers diagnosed with hyperoxic myopia (1.3-1.6 ATM for 45-85 hours in 12-18 days). Furthermore, this pulse of exposure was more concentrated than typically seen with traditional hyperbaric oxygen therapy. Hyperoxic myopia continues to be a risk for those conducting intensive diving with a PO2 between 1.3-1.6 ATM. Additional investigation is warranted to better define risk factors and PO2 limits regarding ocular oxygen toxicity.

Review on hyperbaric oxygen treatment in femoral head necrosis

2017 ◽  
Vol 44 (6) ◽  
pp. 497-508 ◽  
Author(s):  
Enrico Camporesi ◽  
◽  
Giuliano Vezzani ◽  
Vincenzo Zanon ◽  
Daniele Manelli ◽  
...  
Keyword(s):  
Femoral Head ◽  
Hyperbaric Oxygen ◽  
Femoral Head Necrosis ◽  
Hyperbaric Oxygen Treatment ◽  
Oxygen Treatment

The Effect of Hyperbaric Oxygen Treatment on the Healing of Burn Wounds in Nicotinized and Nonnicotinized Rats

2013 ◽  
Vol 34 (4) ◽  
pp. e237-e243 ◽  
Author(s):  
Caferi Tayyar Selçuk ◽  
Burhan Özalp ◽  
Mustafa Durgun ◽  
Alicem Tekin ◽  
Mehmet Fatih Akkoç ◽  
...  
Keyword(s):  
Hyperbaric Oxygen ◽  
Hyperbaric Oxygen Treatment ◽  
Burn Wounds ◽  
Oxygen Treatment
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