Ultrasound Use in Urinary Stones: Adapting Old Technology for a Modern-Day Disease

Tzou, David T.; Usawachintachit, Manint; Taguchi, Kazumi; Chi, Thomas

doi:10.1089/end.2016.0584

Cited by 27 publications

(15 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the use of ultrasound in endourologic procedures has gained popularity in the United States for the past decade, 7 we recognize that many urologists do not have the same level of familiarity performing renal ultrasonography as they do with fluoroscopy. However, we believe that basic renal ultrasonography skills should suffice to perform an ultrasound-guided stent placement.…”

Section: Discussionmentioning

confidence: 97%

Live Renal Ultrasonography Facilitates Double-J Ureteral Stent Insertion at the Bedside: A Pilot Study for the COVID-19 Era

Yang

Chappidi

Overland

et al. 2021

Journal of Endourology

Self Cite

View full text Add to dashboard Cite

Objectives: To investigate the feasibility and efficacy of live renal ultrasonography to guide Double-J ureteral stent placement at the bedside. Patients and Methods: Between April 12 and June 5, 2020, patients presenting with acute ureteral obstruction requiring decompression were prospectively selected for ultrasound-guided bedside ureteral stent placement. During stent placement, upper tract access confirmed using ultrasound with or without retrograde injection of ultrasound contrast before Double-J stent insertion. A postprocedural abdominal X-ray was obtained for stent position confirmation. Results: Eight patients (four men and four women) were offered bedside ultrasound-guided ureteral stent placement, and all eight consented to proceed. Stents were placed in seven of eight patients. One patient had an impacted ureterovesical junction stone and stricture requiring ureteroscopy and laser lithotripsy in the operating room. All patients tolerated procedures without immediate complications. Conclusion: Live renal ultrasonography can facilitate a high success rate for bedside ureteral stent placement outside the operating room. This approach is an attractive alternative to fluoroscopy-guided stent placement in the operating room and is of particular value in the COVID-19 era when judicious use of these resources is salient.

show abstract

Section: Discussionmentioning

confidence: 97%

Live Renal Ultrasonography Facilitates Double-J Ureteral Stent Insertion at the Bedside: A Pilot Study for the COVID-19 Era

Yang

Chappidi

Overland

et al. 2021

Journal of Endourology

Self Cite

View full text Add to dashboard Cite

show abstract

“…The assessment of acute abdominal pain with POCUS must be done in conjunction with a thorough history and clinical examination generating a list of differentials as per the region of the abdomen. POCUS abdomen has been shown to aid and expedite the diagnosis in patients with abdominal trauma with hemoperitoneum, characterize systemic hypoperfusion and shock, detect gallstones, acute cholecystitis, and diagnose ureterolithiasis and assess for pyelonephritis [7][8][9][10]. It can be a useful adjunct for bedside diagnosis of digestive tract diseases such as intussusception, appendicitis, small bowel obstruction, and bowel perforation [3,[11][12][13].…”

Section: Discussionmentioning

confidence: 99%

Point-of-care ultrasound for evaluating intra-abdominal calcification in the pediatric emergency department: case series and review of literature

et al. 2020

View full text Add to dashboard Cite

Background The presence of intra-abdominal calcification in the pediatric population can be due to a wide range of conditions. Calcification in the abdomen can be seen in normal or abnormal anatomical structures. In some patients, abnormal calcification points towards the pathology; whereas in others, calcification itself is the pathology. After a thorough history and clinical examination, point-of-care ultrasound (POCUS) would complement the assessment of acute abdominal pain, based on the list of differentials generated as per the abdominal region. The main objective of this article is to review commonly encountered causes of intra-abdominal calcifications in the pediatric population and help in clinical decision-making in a Pediatric Emergency Department. Case presentation We describe a series of pediatric patients who presented to the Pediatric Emergency Department with acute abdominal pain, in whom point-of-care ultrasound helped expedite the diagnosis by identifying varying types of calcification and associated sonological findings. For children who present to the Pediatric Emergency Department with significant abdominal pain, a rapid distinction between emergencies and non-emergencies is vital to decrease morbidity and mortality. Conclusions In a child presenting to the Pediatric Emergency Department with abdominal pain, POCUS and the findings of calcifications can narrow or expand the differential diagnosis when integrated with history and physical exam, to a specific anatomic structure. Integrating these findings with additional sonological findings of an underlying pathology might raise sufficient concerns in the emergency physicians to warrant further investigations for the patient in the form of a formal radiological ultrasound and assist in the patient's early disposition. The use of POCUS might also help to categorize the type of calcification to one of the four main categories of intra-abdominal calcifications, namely concretions, conduit wall calcification, cyst wall calcification, and solid mass-type calcification. POCUS used thoughtfully can give a diagnosis and expand differential diagnosis, reduce cognitive bias, and reduce physician mental load. By integrating the use of POCUS with the history and clinical findings, it will be possible to expedite the management in children who present to the Pediatric Emergency Department with acute abdominal pain.

show abstract

“…During pelvicalyceal access it allows the surgeon to distinguish between the kidney and surrounding structures . Ultrasonography identifies the posterior calyces more easily than fluoroscopy . Doppler ultrasonography during renal puncture facilitates vessel visualization and results in less bleeding and fewer transfusions .…”

Section: Discussionmentioning

confidence: 99%

Ultrasound guidance can be used safely for renal tract dilatation during percutaneous nephrolithotomy

et al. 2019

Self Cite

View full text Add to dashboard Cite

ObjectivesTo compare clinical outcomes in patients who underwent percutaneous nephrolithotomy (PCNL) with renal tract dilatation performed under fluoroscopic guidance vs renal tract dilatation with ultrasound guidance. Patients and MethodsWe conducted a prospective observational cohort study, enrolling successive patients undergoing PCNL between July 2015 and March 2018. Included in this retrospective analysis were cases where the renal puncture was successfully obtained with ultrasound guidance. Cases were then grouped according to whether fluoroscopy was used to guide renal tract dilatation or not. All statistical analyses were performed using STATA version 15.1 including univariate (Fisher's exact test, Welch's t-test) and multivariate analyses (binomial logistic regression, ordinal logistic regression, and linear regression). ResultsA total of 176 patients underwent PCNL with successful ultrasonography-guided renal puncture, of whom 38 and 138 underwent renal tract dilatation with fluoroscopic vs ultrasound guidance, respectively. There were no statistically significant differences in patient age, gender, body mass index (BMI), preoperative hydronephrosis, stone burden, procedure laterality, number of dilated tracts, and calyceal puncture location between the two groups. Among ultrasound tract dilatations, a higher proportion of patients were placed in the modified dorsal lithotomy position as opposed to prone, and a significantly shorter operating time was observed. Only modified dorsal lithotomy position remained statistically significant after multivariate regression. There were no statistically significant differences in postoperative stone clearance, complication rate, or intra-operative estimated blood loss. A 5-unit increase in a patient's BMI was associated with 30% greater odds of increasingly severe Clavien-Dindo complications. A 5-mm decrease in the preoperative stone burden was associated with 20% greater odds of stone-free status. No variables predicted estimated blood loss with statistical significance. ConclusionsRenal tract dilatation can be safely performed in the absence of fluoroscopic guidance. Compared to using fluoroscopy, the present study demonstrated that ultrasonography-guided dilatations can be safely performed without higher complication or bleeding rates. This can be done using a variety of surgical positions, and future studies centred on improving dilatation techniques could be of impactful clinical value.

show abstract

Ultrasound Use in Urinary Stones: Adapting Old Technology for a Modern-Day Disease

Cited by 27 publications

References 42 publications

Live Renal Ultrasonography Facilitates Double-J Ureteral Stent Insertion at the Bedside: A Pilot Study for the COVID-19 Era

Live Renal Ultrasonography Facilitates Double-J Ureteral Stent Insertion at the Bedside: A Pilot Study for the COVID-19 Era

Point-of-care ultrasound for evaluating intra-abdominal calcification in the pediatric emergency department: case series and review of literature

Ultrasound guidance can be used safely for renal tract dilatation during percutaneous nephrolithotomy

Contact Info

Product

Resources

About