Ureteric stones

Author(s):  
Charles D. Scales

Symptomatic ureteral calculi are common. While in many cases, spontaneous passage or medical expulsive therapy (MET) can avoid the need for surgical intervention, in others intervention is required to relieve ureteral obstruction and/or remove the stone. Important indications exist for immediate or urgent intervention to assure urinary drainage or to remove obstructing ureteral calculi. In the case of infection, the consequences of failure to relieve the obstructed ureter can include severe sepsis and death. For both emergent and urgent indications for urinary drainage, a ureteral stent or percutaneous nephrostomy tube may be considered first-line options. For those patients that require intervention to fragment and remove a ureteral stone, ureteroscopy, and shock wave lithotripsy are acceptable options. This chapter will review indications and techniques for relieving ureteral obstruction and removing the ureteral stone.

2018 ◽  
Vol 02 (01) ◽  
pp. 023-026
Author(s):  
Tianshen Hu ◽  
Ning Zhang ◽  
Joseph Mcdevitt ◽  
Ayobami Odu ◽  
Yin Xi ◽  
...  

Abstract Purpose To evaluate nonprocedural percutaneous nephrostomy (PCN) complications and assess whether the protocol of routine 3-month exchange of PCN is optimal in patients with malignant ureteral obstruction (MUO) and benign ureteral obstruction (BUO). Materials and Methods Retrospective study of 103 patients with a mean age of 48 years (36 men, 67 women) who underwent PCN placement and subsequent PCN exchanges between January 2011 and January 2014 at the institution was conducted. Comparisons of the number of catheter days for those with routine exchange and emergency exchange due to tube obstruction, infection, and mechanical failures were made in patients with MUO and BUO. Results Of the 256 PCN exchange procedures, 139 were performed in the cancer cohort and 117 in the noncancer cohort. Complications requiring emergent exchanges were more common in cancer patients, particularly due to obstruction, which accounted for 57% of exchanges in MUO with a median onset of 50 days. In contrast, the majority of noncancer patients in this study did not require emergent exchange before 3 months. Routine exchanges accounted for 43% and 55% of exchanges in MUO and BUO, respectively. In both the groups, only a small proportion of emergent tube exchanges occurred beyond 105 days. Conclusion A routine 3-month nephrostomy exchange protocol may not be ideal for all patients. The optimal timing for exchange of nephrostomy appears to be earlier for patients with MUO compared with those with BUO. A prospective study is required to define an optimal policy for postprocedural nephrostomy tube care in both the cohorts.


2007 ◽  
Vol 177 (4S) ◽  
pp. 417-417
Author(s):  
Eric A. Singer ◽  
Jared D. Christensen ◽  
Susan Messing ◽  
Erdal Erturk

Author(s):  
Shanglei Liu ◽  
Samuel Eisenstein

AbstractUlcerative colitis (UC) is an autoimmune-mediated colitis which can present in varying degrees of severity and increases the individual’s risk of developing colon cancer. While first-line treatment for UC is medical management, surgical treatment may be necessary in up to 25–30% of patients. With an increasing armamentarium of biologic therapies, patients are presenting for surgery much later in their course, and careful understanding of the complex interplay of the disease, its management, and the patient’s overall health is necessary when considering he appropriate way in which to address their disease surgically. Surgery is generally a total proctocolectomy either with pelvic pouch reconstruction or permanent ileostomy; however, this may need to be spread across multiple procedures given the complexity of the surgery weighed against the overall state of the patient’s health. Minimally invasive surgery, employing either laparoscopic, robotic, or transanal laparoscopic approaches, is currently the preferred approach in the elective setting. There is also some emerging evidence that appendectomy may delay the progression of UC in some individuals. Those who treat these patients surgically must also be familiar with the numerous potential pitfalls of surgical intervention and have plans in place for managing problems such as pouchitis, cuffitis, and anastomotic complications.


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