RESUMEN
We describe a new experimental system for direct measurements of the absolute saturation vapor pressures of liquid or solid samples. The setup allows the isolation of the sample under steady conditions in an ultra-high vacuum chamber, where the measurement of the sample's vapor pressure as a function of its temperature can be performed in a range around room temperature and in a pressure range defined only by the applied absolute pressure sensor. We characterize the setup and illustrate its capability to measure saturation vapor pressures as well as enthalpies of evaporation around room temperature with explicit measurements on four liquid compounds (diethyl phthalate, 1-decanol, 1-heptanol, and 1-hexanol) for which accurate vapor pressures have previously been reported.
RESUMEN
AIM: To assess the feasibility of performing a renal transplant operation through a modified non-muscle-cutting Pfannenstiel incision (MFI). MATERIALS AND METHODS: Renal transplantation with MFI was performed in 20 men with a body mass index (BMI) of less than 25 and five women with a BMI of less than 27. The parameters assessed were incision length, operative time, postoperative pain score by visual analogue score, wound complication, graft-related complications, eGFR at 3 months, and surgical scar satisfaction score. The results were compared with a BMI-matched cohort of patients who had a conventional hockey stick incision. Statistical analyses were done by Chi-square test and Student's t test. RESULTS: There was a significant decrease in mean bed preparation time, mean time for closure, and mean incision length in patients with MFI. In MFI group, the mean surgical satisfaction score was significantly more. There was no significant difference between the groups on all other aspects. CONCLUSION: In the era of minimally invasive surgery, MFI technique could challenge the role of laparoscopic and robotic surgery in renal transplantation. Our study shows that the technique is successful in carefully selected patients with low BMI.