The comparison of tracheostomy and translaryngeal intubation regarding free radical formation and pulmonary effects.

ABSTRACT

BACKGROUND: Our aim in this study was to compare the blood gas changes, the malondialdehyde (MDA) and endogenous antioxidant glutathione (GSH) levels in blood and lung tissues after ischemia/reperfusion, the histopathological damage in lung tissue in rats provided respiratory support with mechanical ventilation after translaryngeal intubation and tracheostomy. METHODS: Group 1 rats were provided mechanical ventilator support after translaryngeal intubation, Group 2 mechanical ventilator support after tracheostomy, and Group 3 was the control group where rats were only anesthetized. Three groups were compared for blood gas changes, MDA, GSH, and histopathological changes. RESULTS: Blood gas evaluation showed a more marked increase in pO2 values and decline in pCO2 values in Group 2 than Group 1 (p<0.05), and higher serum MDA levels in Group 1 than Group 2 (p<0.05). Tissue GSH levels in Groups 1 and 2 were higher than the control group, but this difference was not statistically significant (p>0.05). In terms of histopathological scoring, the damage score in Group 1 was higher than in Group 2 (p<0.05). CONCLUSION: This is the first study to show tracheostomy to be more advantageous than translaryngeal intubation in terms of blood gases, ischemia/reperfusion damage, and structural changes in the lung tissue.