[Management of proximal ureteral stones]

[Result of treatment of urinary lithiasis for professional aptitude]

INTRODUCTION

Military people are inapt for presence of urinary stones. In this specific population, the treatment of stones is even more aggressive than for the general population without recommendation. The final decision about aptitude is the responsibility of the military doctor. Whereas, ureteroscopy has its place there and must done by any urologist.

METHODS

The purpose of this study was to estimate the results of treatments by ureteroscopy in this population. Success was defined by the complete absence of fragment visualized in the imaging of control operating comment and so the end of the inaptitude time.

RESULTS

Between 2009 and 2016, forty-two were treated for ureteral or renal calculi. The population comprises of 93% men, 35 years old on average. The stones were mainly multiple (more 2) and the medium size is 5mm; sixteen (42.9%) was at the left and eight (19%) was bilateral. In 78.8% (78) of the cases there was a stone in renal position whose 50% (39) still at the lower calyx. In total, 5% of the patients were stone-free in 2 sessions on average. The average deadline of inaptitude of the initial consultation in the resumption of work was of 6 months. In 4% of the cases there was a complication operating rank 4.

CONCLUSION

This study confirms the feasibility, the weak harmlessness of ureteroscopy and the lesser deadline of inaptitude. Every urologist can treat this specific population. The patient must be informed and accept the treatment because of excluding referential.

LEVEL OF EVIDENCE

4.

Double J stent reduces the efficacy of extracorporeal shock wave lithotripsy in the treatment of lumbar ureteral stones

Introduction

We evaluated the effect of the presence of a double J stent on the efficacy of extracorporeal shock wave lithotripsy (ESWL) in the treatment of lumbar ureteral stones.

Material and methods

Between January 2007 and February 2012, we performed a retrospective cohort study. Forty–four patients were treated by ESWL for lumbar ureteral stones and included into two groups for the analysis: group 1, non–stented (n = 27) and group 2, stented patients (n = 17). Treatment efficacy was evaluated by abdominal X–ray or CT–scan at 1 month. Stone–free patients and those with a residual stone ≤4 mm were considered to be cured.

Results

Mean stone size and density in groups 1 and 2 were 8.2mm/831HU, and 9.7 mm/986HU respectively. Both groups were comparable for age, BMI, stone size and density, number, and power of ESWL shots given. The success rates in groups 1 and 2 where 81.5% and 47.1%, respectively (p = 0.017). There was no difference between the groups for stones measuring 8 mm or less (p = 0.574). For stones >8 mm, the success rates were respectively 76% and 22.2% for groups 1 and 2 (p = 0.030). Logistic regression analysis revealed a higher failure rate when a double J stent was associated with a stone >8 mm (p = 0.033).

Conclusions

The presence of a double J stent affects the efficacy of ESWL in the treatment of lumbar ureteral stones. This effect is significant for stones >8 mm. Ureteroscopy should be considered as the first–line treatment in such patients.

[Should we consider a complementary treatment after a renal colic drained by an ureteral stent?]

PURPOSE

The aim of the study was to evaluate if only ureteral stent removing after complicated renal colic (RC) could prevent from complementary treatment (shock-wawe lithortripsy or ureteroscopy).

PATIENTS AND METHODS

Data from 95 patients, 39 women and 56 men, who had an ureteral stent for complicated RC from 2005 to 2010 were retrospectively collected. Mean age was 46.4 ± 17.2 years. After the initial management, another hospitalization was organized where patients had ureteral stent removing under local anesthesia, then an abdominal CT-scan without injection and complementary treatment of ureteral stones (none or ESWL or ureteroscopy). Parameters studied were age, sex, stone size, location of calcul. Quantitative values were compared with Student's t test. Qualitative values were compared with the Chi(2). P<0.05 was considered statistically significant.

RESULTS

Mean duration between the two hospitalizations were 1.58 ± 1.84 months. Sixty-one patients (64.2%) had no more urolithiasis. In these patients, mean size of urolithiasis was 5.85 ± 2.33 mm. Location of urolithiasis in distal, mild and proximal ureter was 77%, 3% and 20% respectively. Thirty-four patients (35.8%) had persistant lithiasis after CT-scan. Location of stone in distal, mild and proximal ureter was 17.5%, 5.8% and 76.7% respectively.

CONCLUSION

After management of complicated renal colic by ureteral stent, 64% of patients had spontaneous elimination of stones after removing of ureteral stent, especially in women and pelvic ureter.