A study was made of the effect of continuous hyperbaric oxygenation (HBO) on the ECG and the clinical status of 60 patients with crush syndrome. Of these, 15 persons had acute renal failure (ARF). Before the treatment was started, the patients demonstrated tachycardia, myocardial hypoxia, derangement of nutrition and coronary circulation. The ratio of the T to the R wave was increased in the II standard lead, the ECG readings showed hyperkalemia. These pathological alterations were more pronounced in ARF patients. After HBO was completed, the patients manifested positive changes in the clinical status and in the laboratory analyses. Hypoxia and intoxication decreased to a considerable measure, myocardial metabolism returned to normal. In the control group, the positive changes turned out much less marked.

Khangulian, Manukian, Agaian, , , , , , (1991). [Effect of hyperbaric oxygenation on the bioelectric activity of the heart in long-term crush syndrome]. Sovetskaia meditsina, 1991 ;(10):6-8. https://www.ncbi.nlm.nih.gov/pubmed/1839337