Prilozi / Makedonska akademija na naukite i umetnostite, Oddelenie za biološki i medicinski nauki = Contributions / Macedonian Academy of Sciences and Arts, Section of Biological and Medical Sciences
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To compare and evaluate the success rates of various surgical techniques of pterygium excision, including pterygium excision with complete suture of conjunctivae (PESC), pterygium excision with conjunctival auto-graft transplantation with graft from the inferior temporal bulbar conjunctiva (ITBC) and pterygium excision with conjunctival auto-graft transplantation with graft from the superior temporal bulbar conjunctiva (STBC). ⋯ A comparison of the groups demonstrated that the recurrence rate was highest in the group without transplantation, using only complete suture of the conjunctiva. The excision of the pterygium with conjunctival auto-graft transplantation from the inferior or superior temporal bulbar conjunctiva are highly efficient in terms of low recurrence rates. The modified surgical technique using the graft from the inferior temporal bulbar conjunctivae is preferred because the superior bulbar conjunctiva is intact for eventual future surgical intervention.
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Randomized Controlled Trial
Improvement of cerebral oxygenation during laparoscopy using intermittent sequential compression of legs.
The creation of CO₂ pneumoperitoneum during laparoscopy causes a series of adverse effects. Impairment of brain oxygen saturation during laparoscopy is a result of increased intra-abdominal pressure, absorbed CO₂ and increased intracranial pressure. The aim of this study is to investigate the possible effects of pneumatic inter-mittent sequential compression (ISC) of legs on oxygenation of the brain during laparoscopy. 100 patients, ASA groups 1 and 2, subjected to elective laparoscopic cholecystectomy, were included in this study. ⋯ The ISC in group II was terminated after obtaining the last blood sample. Results showed that the average values of oxygen saturation of the mixed venous blood from the internal jugular vein--SjvO₂ levels were higher in group II where ISC was applied (82.3%→86.4%→85.3%→80.2%→82.8%→80.4%), compared to group I, without ISC (85.5%→77.8%→80.6%→83.8%→84.8%), statistically significant in the second and third measurement for p<0.05 for the second and the third measurement, i.e. after the creation of pneumoperitoneum, when the decreease in the brain oxygenation is most dramatic in the group without ISC. In conclusion, application of intermittent sequential compression of the legs is a simple and safe technique for preserving the brain oxygenation during laparoscopy by restoring the blood return from the legs.