Therapeutic effects of visual standard channel combined with F4.8 visual puncture super-mini percutaneous nephrolithotomy on multiple renal calculi

Objective: To evaluate the therapeutic effects of visual standard channel combined with F4.8 visual puncture super-mini percutaneous nephrolithotomy [SMP] on multiple renal calculi

Methods: The clinical data of 46 patients with multiple renal calculi treated in Affiliated Hospital of Hebei University from October 2015 to September 2016 were retrospectively analyzed. There were 28 males and 18 females aged from 25 to 65 years old, with an average of 42.6. The stone diameters were 3.0-5.2 cm, [4.3 +/- 0.8] cm on average. F4.8 visual puncture-assisted balloon expansion was used to establish a standard channel. After visible stones were removed through nephroscopy combined with ultrasound lithotripsy, the stones of other parts were treated through F4.8 visual puncture SMP with holmium laser. Indices such as the total time of channel establishment, surgical time, decreased value of hemoglobin, phase-I stone clearance rate and surgical complications were summarized

Results: Single standard channel was successfully established in all cases with the assistance of F4.8 visual puncture, of whom 24 were combined with a single microchannel, 16 were combined with double microchannels, and six were combined with three microchannels. All patients were placed with nephrostomy tube which was not placed in the microchannels. Both F5 double J tubes were placed after surgery. The time for establishing a standard channel through F4.8 visual puncture was [6.8 +/- 1.8] min, and that for establishing a single F4.8 visual puncture microchannel was [4.5 +/- 0.9] min. The surgical time was [92 +/- 15] min. The phase-I stone clearance rate was 91.3% [42/46], and the decreased value of hemoglobin was [12.21 +/- 2.5] g/L. There were 8 cases of postoperative fever which was relieved after anti-inflammatory treatment. Four cases had 0.5-0.8 cm of stone residue in the lower calyx, and all stones were discharged one month after surgery by in vitro shock wave lithotripsy combined with position nephrolithotomy, without stone streets, delayed bleeding, peripheral organ damage or urethral injury

Conclusion: Combining visual standard channel with F4.8 visual puncture SMP for the treatment of multiple renal calculi had the advantages of reducing the number of large channels, high rate of stone clearance, safety and reliability and mild complications. The established F4.8 visual puncture channel was safer and more accurate

Methodology Comparison Study on Two Analysis Systems of Procalcitonin / 现代检验医学杂志

Objective To evaluate the comparability of the test results of two immunoassay systems based on the electrochemical luminescence and the fluorescence lateral flow immunoassay for serum procalcitonin (PCT).Methods Roche cobas system was used as the reference system,and fluorescence lateral flow immunoassay system of Shanghai Upper biotech company was used as evaluated system.A total of 141 clinical samples during November,2015 were detected by the two systems to obtain the correlation coefficient and the Kappa values at the two cutoff values(0.5,2.0 ng/ml).Results The two systems showed high correlation (Y=1.008X-0.032,r=0.995,P＜0.001) and low deviation (t=-0.230,P=0.819＞0.05) without statistic significance between two methods.Kappa values were 0.944,0.943 respectively at the two cutoff values (0.5,2.0 ng/ml).Conclusion The test results showed no significant difference between the two immunoassay systems,suggesting a consistency between them for clinical detection of PCT.All the observed indicators reached the clinical diagnostic requirements and the method of quantitative detection of PCT by fluorescence lateral flow immunoassya can be applied for the quick detection of clinical human PCT.

Safety and effectiveness of modular flexible ureteroscope combined with holmium laser lithotripsy in treatment of bilateral renal calculi smaller than 1.5 cm / 中国内镜杂志

Objective To evaluate the safety and effectiveness of modular flexible ureteroscope combined with holmium laser lithotripsy in treatment of bilateral renal calculi smaller than 1.5 cm. Methods Clinical data of 24 patients from August 2013 to March 2016 using a modular flexible ureteroscope in treatment of bilateral renal calculi smaller than 1.5 cm was retrospectively analyzed. The clinical data included operation time, stone clearance rate and occurrence of complications. Results All the 24 patients were successfully placed in bilateral ureteral sheath soft lenses, and enter lithotripsy smoothly. The operation time was 40~105 (71.0 ± 21.5) min. Lithotripsy success rate was 100.00% and 1 month stone clearance rate was 89.50% (43/48), 5 sides with residual stones diameter 7~10 mm, were given extracorporeal shock wave lithotripsy, 3 months stone clearance rate was 93.75% (45/48), 3 sides with residual stones 5~7 mm located lower calyx accepted regular review. 4 cases with postoperative fever were cured after anti-inflammatory treatment. There was no bleeding, ureteral perforation, postoperative avulsion, renal dysfunction, septic shock and other complications. Conclusion Modular flexible ureteroscope lithotripsy in treatment of bilateral renal calculi smaller than 1.5 cm is safe and effective.