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Dive into the research topics where J. Kyle Anderson is active.

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Featured researches published by J. Kyle Anderson.


Transplantation | 1999

Long-term follow-up of living kidney donors: quality of life after donation

Eric Johnson; J. Kyle Anderson; Cheryl L. Jacobs; Gina Suh; Abhinav Humar; Benjamin D. Suhr; Stephen R. Kerr; Arthur J. Matas

The University of Minnesota has been a strong advocate of living donor kidney transplants. The benefits for living donor recipients have been well documented. The relative low risk of physical complications during donation has also been well documented. Less well understood is the psychosocial risk to donors. Most published reports have indicated an improved sense of well-being and a boost in self-esteem for living kidney donors. However, there have been some reports of depression and disrupted family relationships after donation, even suicide after a recipients death. To determine the quality of life of our donors, we sent a questionnaire to 979 who had donated a kidney between August 1, 1984, and December 31, 1996. Of the 60% who responded, the vast majority had an excellent quality of life. As a group, they scored higher than the national norm on the SF-36, a standardized quality of life health questionnaire. However, 4% were dissatisfied and regretted the decision to donate. Further, 4% found the experience extremely stressful and 8% very stressful. We used multivariate analysis to identify risk factors for this poor psychosocial outcome and found that relatives other than first degree (odds ratio=3.5, P=0.06) and donors whose recipient died within 1 year of transplant (odds ratio=3.3, P=0.014) were more likely to say they would not donate again if it were possible. Further, donors who had perioperative complications (odds ratio=3.5, P=0.007) and female donors (odds ratio=1.8, P=0.1) were more likely to find the overall experience more stressful. Overall, the results of this study are overwhelmingly positive and have encouraged us to continue living donor kidney transplants.


BJUI | 2007

A pilot study on the early use of the vacuum erection device after radical retropubic prostatectomy

Tobias Kohler; Renato N. Pedro; Kari Hendlin; William Utz; Roland Ugarte; Pratap K. Reddy; Antoine A. Makhlouf; Igor Ryndin; Benjamin K. Canales; Derek Weiland; Nissrine Nakib; Anup Ramani; J. Kyle Anderson; Manoj Monga

To evaluate the effect of the early use of the vacuum erection device (VED) on erectile dysfunction (ED) and penile shortening after radical retropubic prostatectomy (RP), as these are important concerns for men choosing among treatment alternatives for localized prostate cancer.


The Journal of Urology | 2012

Factors that impact the outcome of minimally invasive pyeloplasty: Results of the multi-institutional laparoscopic and robotic pyeloplasty collaborative group

Steven M. Lucas; Chandru P. Sundaram; J. Stuart Wolf; Raymond J. Leveillee; Vincent G. Bird; Mohamed Aziz; Stephen E. Pautler; Patrick Luke; Peter Erdeljan; D. Duane Baldwin; Kamyar Ebrahimi; Robert B. Nadler; David A. Rebuck; Raju Thomas; Benjamin R. Lee; Ugur Boylu; Robert S. Figenshau; Ravi Munver; Timothy D. Averch; Bishoy A. Gayed; Arieh L. Shalhav; Mohan S. Gundeti; Erik P. Castle; J. Kyle Anderson; Branden G. Duffey; Jaime Landman; Zhamshid Okhunov; Carson Wong; Kurt H. Strom

PURPOSE We compared laparoscopic and robotic pyeloplasty to identify factors associated with procedural efficacy. MATERIALS AND METHODS We conducted a retrospective multicenter trial incorporating 865 cases from 15 centers. We collected perioperative data including anatomical and procedural factors. Failure was defined subjectively as pain that was unchanged or worse per medical records after surgery. Radiographic failure was defined as unchanged or worsening drainage on renal scans or worsening hydronephrosis on computerized tomography. Bivariate analyses were performed on all outcomes and multivariate analysis was used to assess factors associated with decreased freedom from secondary procedures. RESULTS Of the cases 759 (274 laparoscopic pyeloplasties with a mean followup of 15 months and 465 robotic pyeloplasties with a mean followup of 11 months, p <0.001) had sufficient data. Laparoscopic pyeloplasty, previous endopyelotomy and intraoperative crossing vessels were associated with decreased freedom from secondary procedures on bivariate analysis, with a 2-year freedom from secondary procedures of 87% for laparoscopic pyeloplasty vs 95% for robotic pyeloplasty, 81% vs 93% for patients with vs without previous endopyelotomy and 88% vs 95% for patients with vs without intraoperative crossing vessels, respectively. However, on multivariate analysis only previous endopyelotomy (HR 4.35) and intraoperative crossing vessels (HR 2.73) significantly impacted freedom from secondary procedures. CONCLUSIONS Laparoscopic and robotic pyeloplasty are highly effective in treating ureteropelvic junction obstruction. There was no difference in their abilities to render the patient free from secondary procedures on multivariate analysis. Previous endopyelotomy and intraoperative crossing vessels reduced freedom from secondary procedures.


Indian Journal of Urology | 2010

Current and future technology for minimally invasive ablation of renal cell carcinoma

Branden G. Duffey; J. Kyle Anderson

Purpose of Review: To provide an overview of the technologic advancements in the field of ablative therapy, focusing on the treatment of renal neoplasms. Materials and Methods: A MEDLINE search was performed using each specific ablative technique name as the search term. Articles written in the English language were selected for review. In cases of multiple reports by a single institution, the most recent report was utilized. Pertinent articles specific to the technologic advancement in ablative therapy were selected for review. Recent Findings: Intermediate-term oncologic outcomes of radiofrequency ablation (RFA) and cryoablation (CA) for the treatment of small renal masses are encouraging. For thermal therapies, molecular adjuvants to enhance cellular kill and local control have been developed. Improvements in microwave technology have allowed for reductions in antenna size and increases in ablation size. Laparoscopic high-intensity focused ultrasound (HIFU) probes have been developed to overcome the limitations of transcutaneous energy delivery, but HIFU remains experimental for the treatment of renal lesions. Irreversible electroporation (IRE), a novel nonthermal ablative technique, is currently undergoing clinical investigation in human subjects. Histotripsy causes mechanical destruction of targeted tissue and shows promise in treating renal and prostate pathology. Summary: Ablative techniques are commonly utilized in the primary treatment of urologic malignancies. The purpose of this review is to discuss technologic advances in ablative therapies with emphasis on the treatment of renal masses. RFA and CA show acceptable intermediate-term efficacy and technical refinement continues. Emerging technologies, including microwave thermotherapy, IRE, HIFU and histotripsy, are described with emphasis on the mechanism of cellular kill, energy delivery, and stage in clinical development.


BJUI | 2007

Intermediate-term prospective results of radiofrequency-assisted laparoscopic partial nephrectomy: A non-ischaemic coagulative technique

Ilia S. Zeltser; Saurabh Moonat; Sangtae Park; J. Kyle Anderson; Jeffrey A. Cadeddu

To report the first intermediate‐term oncological outcomes of laparoscopic radiofrequency coagulation followed by laparoscopic partial nephrectomy (RF‐LPN) to treat small renal masses, as LPN is limited by the technical difficulty of efficient tumour resection and parenchymal repair during warm ischaemia of the kidney.


Contemporary Clinical Trials | 2012

Challenges and potential solutions to meeting accrual goals in a Phase II chemoprevention trial for prostate cancer.

Nagi B. Kumar; Theresa Crocker; Tiffany Smith; Julio M. Pow-Sang; Philippe E. Spiess; Kathleen M. Egan; Gwen Quinn; Michael J. Schell; Said Sebti; Aslam Kazi; Tian Chuang; Raoul Salup; Mohamed Helal; Gregory P. Zagaja; Edouard J. Trabulsi; Jerry McLarty; Tajammul Fazili; Christopher R. Williams; Fred Schreiber; Joel W. Slaton; J. Kyle Anderson

OBJECTIVE The goal of this report is to describe the on going strategies, successes, challenges and solutions for recruitment in this multi-center, phase II chemoprevention trial targeting men at high risk for prostate cancer. METHODS We developed and implemented a multi-center clinical trial in institutions with supportive infrastructure, lead by a recruitment team of experienced and committed physicians and clinical trial staff, implementing multi-media and community outreach strategies to meet recruitment goals. Screening logs were reviewed to identify trends as well as patient, protocol and infrastructure -related barriers impacting accrual and revisions to protocol implemented. RESULTS Between January 2008 and February 2011 a total of 3547 individuals were prescreened with 94% (n=3092) determined to be ineligible based on diagnosis of cancer or benign biopsy results. Of these, 216 were considered eligible for further screening with 52% (n=113) declining to participate due to patient related factors and 14% (n=29) eliminated due to protocol-related criteria for exclusion. Ninety-four (94) subjects consented to participate with 34% of these subjects (n=74) meeting all eligibility criteria to be randomized to receive study agent or placebo. Across all sites, 99% of the recruitment of subjects in this clinical trial is via physician recruitment and referral with less than 1% responding to other recruitment strategies. CONCLUSION A contemporary approach to subject recruitment and frequent evaluation is needed to assure responsiveness to emerging challenges to accrual and the evolving scientific literature. A focus on investing on improving systems for physician recruitment may be key to meeting recruitment target in chemoprevention trials.


Jsls-journal of The Society of Laparoendoscopic Surgeons | 2010

Evaluation of the Rebound Hernia Repair Device for Laparoscopic Hernia Repair

Gonzalo Torres-Villalobos; Laura Sorcic; G. R. Ruth; Rafael S. Andrade; Luis A. Martin-del-Campo; J. Kyle Anderson

This investigation of the Rebound Hernia Repair Device found that the device has favorable handling characteristics and may serve as a useful agent in laparoscopic hernia repair.


international conference of the ieee engineering in medicine and biology society | 2009

Nanoparticle enhanced thermal therapies

Mithun M. Shenoi; J. Kyle Anderson; John C. Bischof

Thermal therapies such as hyperthermia, radiofrequency ablation, cryoablation, etc. have shown great potential and are gaining increasing clinical acceptance in the treatment of solid tumors. However, these treatment modalities are limited by the size of tumor that can be treated, incomplete tumor kill, and damage to adjacent normal tissues. To address these limitations, the concept of adjuvant-assisted thermal therapies has been proposed and tested to enhance the tumor destructive effects of thermal therapies. CYT-6091, a pegylated colloidal gold nanoparticle containing TNF-alpha bound to its surface, has been extensively investigated in our lab as an adjuvant to enhance thermal therapies. This paper describes our investigations of nanoparticle enhanced thermal therapies in various preclinical and translational models of solid tumors.


World Journal of Urology | 2017

Update of the ICUD-SIU consultation on upper tract urothelial carcinoma 2016: treatment of low-risk upper tract urothelial carcinoma.

Rao S. Mandalapu; Mesut Remzi; Theo M. de Reijke; Vitaly Margulis; J. Palou; Anil Kapoor; Ofer Yossepowitch; Jonathan A. Coleman; O. Traxer; J. Kyle Anderson; James Catto; Jean de la Rosette; Timothy O’Brien; Anthony Zlotta; Surena F. Matin

AbstractIntroduction The conservative management of upper tract urothelial carcinoma (UTUC) has historically been offered to patients with imperative indications. The recent International Consultation on Urologic Diseases (ICUD) publication on UTUC stratified treatment allocations based on high- and low-risk groups. This report updates the conservative management of the low-risk group.MethodsThe ICUD for low-risk UTUC working group performed a thorough review of the literature with an assessment of the level of evidence and grade of recommendation for a variety of published studies in this disease space. We update these publications and provide a summary of that original report.ResultsThere are no prospective randomized controlled studies to support surgical management guidelines. A risk-stratified approach based on clinical, endoscopic, and biopsy assessment allows selection of patients who could benefit from kidney-preserving procedures with oncological outcomes potentially similar to radical nephroureterectomy with bladder cuff excision, with the added benefit of renal function preservation. These treatments are aided by the development of high-definition flexible digital URS, multi-biopsies with the aid of access sheaths and other tools, and promising developments in the use of adjuvant topical therapy.Conclusions Recent developments in imaging, minimally invasive techniques, multimodality approaches, and adjuvant topical regimens and bladder cancer prevention raise the hope for improved risk stratification and may greatly improve the endoscopic treatment for low-risk UTUC.


The Journal of Urology | 2006

Serum Laboratory Values Following Uncomplicated Laparoscopic Urological Surgery

J. Kyle Anderson; Edward D. Matsumoto; Khaled F. Abdel-Aziz; Robert S. Svatek; Jeffrey A. Cadeddu

PURPOSE Presentation of complications following laparoscopic surgery can be different from corresponding open surgical complications. While leukopenia has been identified as a common finding in patients with unrecognized bowel injury following laparoscopy, to our knowledge no study has determined if leukopenia or other serum abnormalities are unique to patients with laparoscopic complications. We present an analysis of postoperative laboratory values from patients after uncomplicated urological laparoscopic surgery. MATERIALS AND METHODS A retrospective review of 50 adult patients who had previously undergone uncomplicated laparoscopic urological procedures was performed. Exclusion criteria were preexisting hematological, immune, liver or pancreatic disorders. Common serum laboratory values were measured on postoperative day 1. RESULTS All values for bilirubin were within normal limits. Of patients undergoing a right side renal procedure, 10 of 16 (63%) had a postoperative increase in liver function tests. Amylase or lipase was increased in a total of 12 (24%) patients. Patients undergoing laparoscopic prostatectomy accounted for the majority of this group with 9 of 21 (43%) patients having increased amylase or lipase. Finally, there were no patients with immediate postoperative leukopenia. CONCLUSIONS Following uncomplicated laparoscopic procedures, bilirubin levels are rarely affected, amylase and lipase may be acutely increased following laparoscopic prostatectomy, and white blood count is commonly increased. While 16 (36%) patients had postoperative leukocytosis, leukopenia was not detected after uncomplicated laparoscopic urological surgery and should alert the surgeon to the possibility of an undiagnosed complication.

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Jeffrey A. Cadeddu

University of Texas Southwestern Medical Center

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Sangtae Park

University of Texas Southwestern Medical Center

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Margaret S. Pearle

University of Texas Southwestern Medical Center

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Meredith R. Baker

University of Texas Southwestern Medical Center

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Yair Lotan

University of Texas Southwestern Medical Center

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Kari Hendlin

University of Minnesota

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Courtney Lee

University of Minnesota

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