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Featured researches published by Deepak Vikraman.


American Journal of Transplantation | 2010

Fatal Apophysomyces elegans Infection Transmitted by Deceased Donor Renal Allografts

Barbara D. Alexander; Wiley A. Schell; A. M. Siston; C. Y. Rao; W. A. Bower; S. A. Balajee; David N. Howell; Z. S. Moore; J. Noble-Wang; J. A. Rhyne; A. T. Fleischauer; J. M. Maillard; M. Kuehnert; Deepak Vikraman; Bradley H. Collins; Carlos E. Marroquin; Benjamin Park

Two patients developed renal mucormycosis following transplantation of kidneys from the same donor, a near‐drowning victim in a motor vehicle crash. Genotypically, indistinguishable strains of Apophysomyces elegans were recovered from both recipients. We investigated the source of the infection including review of medical records, environmental sampling at possible locations of contamination and query for additional cases at other centers. Histopathology of the explanted kidneys revealed extensive vascular invasion by aseptate, fungal hyphae with relative sparing of the renal capsules suggesting a vascular route of contamination. Disseminated infection in the donor could not be definitively established. A. elegans was not recovered from the same lots of reagents used for organ recovery or environmental samples and no other organ transplant‐related cases were identified. This investigation suggests either isolated contamination of the organs during recovery or undiagnosed disseminated donor infection following a near‐drowning event. Although no changes to current organ recovery or transplant procedures are recommended, public health officials and transplant physicians should consider the possibility of mucormycosis transmitted via organs in the future, particularly for near‐drowning events. Attention to aseptic technique during organ recovery and processing is re‐emphasized.


Transplantation | 2015

Outcomes in kidney transplant recipients from older living donors.

Brian R. Englum; Matthew A. Schechter; William Irish; Kadiyala V. Ravindra; Deepak Vikraman; S. Sanoff; Matthew J. Ellis; Debra Sudan; Uptal D. Patel

Background Previous studies demonstrate that graft survival from older living kidney donors (LD; age >60 years) is worse than younger LD but similar to deceased standard criteria donors (SCD). Limited sample size has precluded more detailed analyses of transplants from older LD. Methods Using the United Network for Organ Sharing database from 1994 to 2012, recipients were categorized by donor status: SCD, expanded criteria donor (ECD), or LD (by donor age: <60, 60–64, 65–69, ≥70 years). Adjusted models, controlling for donor and recipient risk factors, evaluated graft and recipient survivals. Results Of 250,827 kidney transplants during the study period, 92,646 were LD kidneys, with 4.5% of these recipients (n = 4,186) transplanted with older LD kidneys. The use of LD donors 60 years or older increased significantly from 3.6% in 1994 to 7.4% in 2011. Transplant recipients with older LD kidneys had significantly lower graft and overall survival compared to younger LD recipients. Compared to SCD recipients, graft survival was decreased in recipients with LD 70 years or older, but overall survival was similar. Older LD kidney recipients had better graft and overall survival than ECD recipients. Conclusions As use of older kidney donors increases, overall survival among kidney transplant recipients from older living donors was similar to or better than SCD recipients, better than ECD recipients, but worse than younger LD recipients. With increasing kidney donation from older adults to alleviate profound organ shortages, the use of older kidney donors appears to be an equivalent or beneficial alternative to awaiting deceased donor kidneys.


American Journal of Transplantation | 2013

Posterior Reversible Encephalopathy Syndrome Independently Associated With Tacrolimus and Sirolimus After Multivisceral Transplantation

Andrew S. Barbas; Aparna Rege; Anthony W. Castleberry; J. Gommer; Matthew J. Ellis; Todd V. Brennan; Bradley H. Collins; Abigail E. Martin; Kadiyala V. Ravindra; Deepak Vikraman; Debra Sudan

Posterior reversible encephalopathy syndrome (PRES) is a small vessel microangiopathy of the cerebral vasculature that occurs in 0.5–5% of solid organ transplant recipients, most commonly associated with tacrolimus (Tac). Clinical manifestations include hypertension and neurologic symptoms. We report an adult multivisceral transplant recipient who experienced recurrent PRES initially associated with Tac and subsequently with sirolimus. A 49‐year‐old woman with short bowel syndrome underwent multivisceral transplantation due to total parenteral nutrition–related liver disease. She was initially maintained on Tac, mycophenalate mofetil (MMF) and prednisone. Three months after transplantation, she developed renal dysfunction, leading to a reduction in Tac and the addition of sirolimus. Eight months after transplantation, she developed PRES. Tac was discontinued and PRES resolved. Sirolimus was increased to maintain trough levels of 12–15 ng/mL. Fourteen months after transplant, she experienced recurrent PRES which resolved after discontinuing sirolimus. Currently 3 years posttransplant, she is maintained on cyclosporine, MMF and prednisone with no PRES recurrence. In addition to calcineurin inhibitors, sirolimus may also be associated with PRES after solid organ transplantation. Ours is the first report of sirolimus‐associated PRES in the setting of multivisceral transplantation. Identifying a safe alternative immunosuppression regimen was challenging but ultimately successful.


American Journal of Transplantation | 2012

Use of Vascularized Posterior Rectus Sheath Allograft in Pediatric Multivisceral Transplantation - Report of Two Cases

Kadiyala V. Ravindra; Abigail E. Martin; Deepak Vikraman; Todd V. Brennan; Bradley H. Collins; Aparna Rege; Scott T. Hollenbeck; L. Chinappa‐Nagappa; K. Eager; D. Cousino; Debra Sudan

Restoring abdominal wall cover and contour in children undergoing bowel and multivisceral transplantation is often challenging due to discrepancy in size between donor and recipient, poor musculature related to birth defects and loss of abdominal wall integrity from multiple surgeries. A recent innovation is the use of vascularized posterior rectus sheath to enable closure of abdomen. We describe the application of this technique in two pediatric multivisceral transplant recipients—one to buttress a lax abdominal wall in a 22‐month‐old child with megacystis microcolon intestinal hypoperistalsis syndrome and another to accommodate transplanted viscera in a 10‐month child with short bowel secondary to gastoschisis and loss of domain. This is the first successful report of this procedure with long‐term survival. The procedure has potential application to facilitate difficult abdominal closure in both adults and pediatric liver and multivisceral transplantation.


Transplantation | 2011

Single-site laparoscopic living donor nephrectomy offers comparable perioperative outcomes to conventional laparoscopic living donor nephrectomy at a higher cost.

Keri E. Lunsford; M. Harris; Kimberly N. Nicoll; Bradley H. Collins; Debra Sudan; Paul C. Kuo; Deepak Vikraman

REFERENCES 1. Kniepeiss D, Iberer F, Grasser B. A single center experience with retrograde reperfusion in liver transplantation. Transpl Int 2003; 16: 730. 2. Ruemmele P, Hofstaedter F, Gelbmann CM. Secondary sclerosing cholangitis. Nat Rev Gastroenterol Hepatol 2009; 6: 287. 3. Gelbmann CM, Rümmele P, Wimmer M, et al. Ischemic-like cholangiopathy with secondary sclerosing cholangitis in critically ill patients. Am J Gastroenterol 2007; 102: 1221. 4. Sakrak O, Akpinar M, Bedirli A. Short and long-term effects of bacterial translocation due to obstructive jaundice on liver damage. Hepatogastroenterology 2003; 50: 1542. 5. Yusuf TE, Baron TH. AIDS cholangiopathy. Curr Treat Options Gastroenterol 2004; 7: 111. 6. Domagk D, Fegeler W, Conrad B. Biliary tract candidiasis: Diagnostic and therapeutic approaches in a case series. Am J Gastroenterol 2006; 101: 2530.


Cureus | 2016

Trends in Usage and Outcomes for Expanded Criteria Donor Kidney Transplantation in the United States Characterized by Kidney Donor Profile Index.

Aparna Rege; Bill Irish; Anthony W. Castleberry; Deepak Vikraman; S. Sanoff; Kadiyala V. Ravindra; Bradley H. Collins; Debra Sudan

There has been increasing concern in the kidney transplant community about the declining use of expanded criteria donors (ECD) despite improvement in survival and quality of life. The recent introduction of the Kidney Donor Profile Index (KDPI), which provides a more granular characterization of donor quality, was expected to increase utilization of marginal kidneys and decrease the discard rates. However, trends and practice patterns of ECD kidney utilization on a national level based on donor organ quality as per KDPI are not well known. We, therefore, performed a trend analysis of all ECD recipients in the United Network for Organ Sharing (UNOS) registry between 2002 and 2012, after calculating the corresponding KDPI, to enable understanding the trends of usage and outcomes based on the KDPI characterization. High-risk recipient characteristics (diabetes, body mass index ≥30 kg/m2, hypertension, and age ≥60 years) increased over the period of the study (trend test p<0.001 for all). The proportion of ECD transplants increased from 18% in 2003 to a peak of 20.4% in 2008 and then declined thereafter to 17.3% in 2012. Using the KDPI >85% definition, the proportion increased from 9.4% in 2003 to a peak of 12.1% in 2008 and declined to 9.7% in 2012. Overall, although this represents a significant utilization of kidneys with KDPI >85% over time (p<0.001), recent years have seen a decline in usage, probably related to regulations imposed by Centers for Medicare & Medicaid Services (CMS). When comparing the hazards of graft failure by KDPI, ECD kidneys with KDPI >85% have a slightly lower risk of graft failure compared to standard criteria donor (SCD) kidneys with KDPI >85%, with a hazard ratio (HR) of 0.95, a confidence interval (CI) of 0.94-0.96, and statistical significance of p<0.001. This indicates that some SCD kidneys may actually have a lower estimated quality, with a higher Kidney Donor Risk Index (KDRI), than some ECDs. The incidence of delayed graft function (DGF) in ECD recipients has significantly decreased over time from 35.2% in 2003 to 29.6% in 2011 (p=0.007), probably related to better understanding of the donor risk profile along with increased use of hypothermic machine perfusion and pretransplant biopsy to aid in optimal allograft selection. The recent decline in transplantation of KDPI >85% kidneys probably reflects risk-averse transplant center behavior. Whether discard of discordant SCD kidneys with KDPI >85% has contributed to this decline remains to be studied.


Pediatric Transplantation | 2014

Liver transplantation in an adolescent with acute liver failure from acute lymphoblastic leukemia

D. M. Reddi; Andrew S. Barbas; Anthony W. Castleberry; Aparna Rege; Deepak Vikraman; Todd V. Brennan; Kadiyala V. Ravindra; Bradley H. Collins; Debra Sudan; Anand S. Lagoo; Abigail E. Martin

The most common identifiable causes of acute liver failure in pediatric patients are infection, drug toxicity, metabolic disease, and autoimmune processes. In many cases, the etiology of acute liver failure cannot be determined. Acute leukemia is an extremely rare cause of acute liver failure, and liver transplantation has traditionally been contraindicated in this setting. We report a case of acute liver failure in a previously healthy 15‐yr‐old male from pre‐B‐cell acute lymphoblastic leukemia. He underwent liver transplantation before the diagnosis was established, and has subsequently received chemotherapy for pre‐B‐cell acute lymphoblastic leukemia. He is currently alive 31 months post‐transplantation. The published literature describing acute lymphoblastic leukemia as a cause of acute liver failure is reviewed.


Cureus | 2016

Could the Use of an Enhanced Recovery Protocol in Laparoscopic Donor Nephrectomy be an Incentive for Live Kidney Donation

Aparna Rege; Harold Leraas; Deepak Vikraman; Kadiyala V. Ravindra; Todd V. Brennan; Timothy E. Miller; Julie K. Thacker; Debra Sudan

Introduction and Background: Gastrointestinal (GI) recovery after major abdominal surgery can be delayed from an ongoing need for narcotic analgesia thereby prolonging hospitalization. Enhanced recovery after surgery (ERAS) is a multimodal perioperative care pathway designed to facilitate early recovery after major surgery by maintaining preoperative body composition and physiological organ function and modifying the stress response induced by surgical exposure. Enhanced recovery programs (ERPs) in colorectal surgery have decreased the duration of postoperative ileus and the hospital stay while showing equivalent morbidity, mortality, and readmission rates in comparison to the traditional standard of care. This study is a pilot trial to evaluate the benefits of ERAS protocols in living kidney donors undergoing laparoscopic nephrectomy. Methods: This is a single-center, non-randomized, retrospective analysis comparing the outcomes of the first 40 live kidney donors subjected to laparoscopic nephrectomy under the ERAS protocol to 40 donors operated prior to ERAS with traditional standard of care. Our ERAS protocol includes reduced duration of fasting with preoperative carbohydrate loading, intraoperative fluid restriction to 3 ml/kg/hr, target urine output of 0.5 ml/kg/hr, use of subfascial Exparel injection (bupivacaine liposome suspension), and postoperative narcotic-free pain regimen with acetaminophen, ketorolac, or tramadol. Short-term patient outcomes were compared using Pearsons’s Chi-Squared test for categorical variables and the Kruskal-Wallis test for continuous variables. Additionally, a multivariate analysis was conducted to evaluate factors influencing patient length of stay and likelihood of readmission. Results: ERAS protocol reduced the postoperative median length of stay decreased from 2.0 to 1.0 days (p=0.001). Overall pain scores were significantly lower in the ERAS group (peak pain score 6.0 vs. 8.00, p< 0.001; morning after surgery pain score 3.0 vs. 7.0, p=0.001; lowest pain score 0.0 vs. 2.0, p=0.016) despite the absence of postoperative narcotics. The average duration of surgery was shorter in the ERAS group (248 vs. 304 minutes, p<0.001). The average amount of intraoperative fluid used was significantly lower in the ERAS group (2500 ml vs. 3525 ml, p<0.001) without affecting the donor renal function. The incidence of delayed graft function was similar in the two groups (p=0.541). A trend toward lower readmission was noted with the ERAS protocol (12.8% vs. 27.5%, p=0.105). GI dysfunction was the most common reason for readmission. Conclusion: Application of an ERAS protocol in a laparoscopic living donor nephrectomy was associated with reduced length of hospitalization and improved pain scores related likely to intraoperative use of subfascial Exparel and a shorter duration of ileus. Restricted use of intraoperative fluids prevents excessive third spacing and bowel edema, enhancing gut recovery without adversely impacting recipient graft function. This study suggests that ERAS has the potential to enhance the advantages of laparoscopic surgery for live kidney donation through optimizing donor outcomes and perioperative patient satisfaction.


Journal of Computer Assisted Tomography | 2015

Graft Kidney Torsion After Simultaneous Kidney-Pancreas Transplant: Report of 2 Cases and Literature Review

Keitaro Sofue; Deepak Vikraman; Tracy A. Jaffe; Gaurav N. Chaubal; Mustafa R. Bashir

Torsion of an allograft kidney is an extremely rare and potentially reversible complication. Imaging diagnosis plays a crucial role because of the absence of specific clinical features. We report 2 cases in which kidney torsion after simultaneous kidney-pancreas transplant was diagnosed by ferumoxytol-enhanced magnetic resonance imaging/angiography and present a review of the relevant literature. Radiologists and clinicians should be aware of this entity because graft salvage depends on rapid diagnosis and surgical detorsion.


Perioperative Medicine | 2016

Proceedings of the American Society for Enhanced Recovery/Evidence Based Peri-Operative Medicine 2016 Annual Congress of Enhanced Recovery and Perioperative Medicine

Charles R. Horres; Mohamed A. Adam; Zhifei Sun; Julie K. Thacker; Timothy J. Miller; Stuart A. Grant; Jeffrey Huang; Kirstie McPherson; Sanjiv Patel; Su Cheen Ng; Denise Veelo; Bart Geerts; Monty Mythen; Mark Foulger; Tim Collins; Michael G. Mythen; Mark H. Edwards; Denny Levett; Tristan Chapman; Imogen Fecher Jones; Julian Smith; John Knight; Michael P. W. Grocott; Thomas Sharp; Sandy Jack; Thomas Armstrong; John Primrose; Adam B. King; K Kye Higdon; Melissa Bellomy

Table of contentsA1 Effects of enhanced recovery pathways on renal functionCharles R. Horres, Mohamed A. Adam, Zhifei Sun, Julie K. Thacker, Timothy J. Miller, Stuart A. GrantA2 Economic outcomes of enhanced recovery after surgery (ERAS)Jeffrey HuangA3 What does eating, drinking and mobilizing after enhanced recovery surgery really mean?Kirstie McPherson, Sanjiv Patel, Su Cheen Ng, Denise Veelo, Bart Geerts, Monty MythenA4 Intra-operative fluid monitoring practicesSu Cheen Ng, Mark Foulger, Tim Collins, Kirstie McPherson, Michael MythenA5 Development of an integrated perioperative medicine care pathwayMark Edwards, Denny Levett, Tristan Chapman, Imogen Fecher – Jones, Julian Smith, John Knight, Michael GrocottA6 Cardiopulmonary exercise testing for collaborative decision making prior to major hepatobiliary surgeryMark Edwards, Thomas Sharp, Sandy Jack, Tom Armstrong, John Primrose, Michael Grocott, Denny LevettA7 Effect of an enhanced recovery program on length of stay for microvascular breast reconstruction patientsAdam B. King, Kye Higdon, Melissa Bellomy, Sandy An, Paul St. Jacques, Jon Wanderer, Matthew McEvoyA8 Addressing readmissions associated with an enhanced recovery pathway for colorectal surgeryAnne C. Fabrizio, Michael C. Grant, Deborah Hobson, Jonathan Efron, Susan Gearhart, Bashar Safar, Sandy Fang, Christopher Wu, Elizabeth WickA9 The Manchester surgical outcomes project: prevalence of pre operative anaemia and peri operative red cell transfusion ratesLeanne Darwin, John MooreA10 Preliminary results from a pilot study utilizing ears protocol in living donor nephrectomyAparna Rege, Jayanth Reddy, William Irish, Ahmad Zaaroura, Elizabeth Flores Vera, Deepak Vikraman, Todd Brennan, Debra Sudan, Kadiyala RavindraA11 Enhanced recovery after surgery: the role of the pathway coordinatorDeborah WatsonA12 Hospitalization costs for patients undergoing orthopedic surgery treated with intravenous acetaminophen (IV-APAP) + IV opioids or IV opioids alone for postoperative painManasee V. Shah, Brett A. Maiese, Michael T. Eaddy, Orsolya Lunacsek, An Pham, George J. WanA13 Development of an app for quality improvement in enhanced recoveryKirstie McPherson, Thomas Keen, Monty MythenA14 A clinical rotation in enhanced recovery pathways and evidence based perioperative medicine for medical studentsAlexander B Stone, Christopher L. Wu, Elizabeth C. WickA15 Enhanced recovery after surgery (ERAS) implementation in abdominal based free flap breast reconstructionRachel A. Anolik, Adam Glener, Thomas J. Hopkins, Scott T. Hollenbeck, Julie K. Marosky ThackerA16 How the implementation of an enhanced recovery after surgery (ERAS) protocol can improve outcomes for patients undergoing cystectomyTracey Hong, Andrea Bisaillon, Peter Black, Alan So, Associate Professor, Kelly MaysonA17 Use of an app to improve patient engagement with enhanced recovery pathwaysKirstie McPherson, Thomas Keen, Monty MythenA18 Effect of an enhanced recovery after surgery pathway for living donor nephrectomy patientsAdam B. King, Rachel Forbes, Brad Koss, Tracy McGrane, Warren S. Sandberg, Jonathan Wanderer, Matthew McEvoyA19 Introduction and implementation of an enhanced recovery program to a general surgery practice in a community hospitalPatrick Shanahan, John Rohan, Desirée Chappell, Carrie ChesherA20 “Get fit” for surgery: benefits of a prehabilitation clinic for an enhanced recovery program for colorectal surgical patientsSusan VanderBeek, Rebekah KellyA21 Evaluation of gastrointestinal complications following radical cystectomy using enhanced recovery protocolSiamak Daneshmand, Soroush T. Bazargani, Hamed Ahmadi, Gus Miranda, Jie Cai, Anne K. Schuckman, Hooman DjaladatA22 Impact of a novel diabetic management protocol for carbohydrate loaded patients within an orthopedic ERAS protocolVolz L, Milby JA23 Institution of a patient blood management program to decrease blood transfusions in elective knee and hip arthroplastyOpeyemi Popoola, Tanisha Reid, Luciana Mullan, Mehrdad Rafizadeh, Richard Pitera

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William Irish

University of Pittsburgh

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