Aviad Gravetz

Dr. Aviad Gravetz


Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2016 in International Journal of Surgery
Verified
Journal Article
Closed access
NHNir Horesh
Nir Horesh
NWNir Wasserberg
Nir Wasserberg
AZAndrew P. Zbar
Andrew P. Zbar
AGAviad Gravetz
Aviad Gravetz
YBYaniv Berger
Yaniv Berger
OZOded Zmora
Oded Zmora
The management of diverticular disease has evolved in the last few decades from a structured therapeutic approach including operative management in almost all cases to a variety of medical and surgical approaches leading to a more individualized strategy. There is an ongoing debate among surgeons about the surgical management of diverticular disease, questioning not only the surgical procedure of choice, but also about who should be operated and the timing of surgery, both in complicated and uncomplicated diverticular disease. This article reviews the current treatment of diverticulitis, with a focus on the indications and methods of surgery in both the emergency and elective settings. Further investigation with good clinical data is needed for the establishment of clear guidelines.

18 July 2022 in World Journal of Transplantation
Verified
Journal Article
Open access
AGAviad Gravetz
Aviad Gravetz
Portal vein-variceal anastomosis for portal vein inflow reconstruction in orthotopic liver transplantation: A case report and review of literature

16 August 2025 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
AGAviad Gravetz
Aviad Gravetz
Fahim KananiFahim Kanani
Fahim Kanani
KLKarin Lifshitz
Karin Lifshitz
VTVladimir Tennak
Vladimir Tennak
DBDana Bielopolski
Dana Bielopolski
ENEviatar Nesher
Eviatar Nesher
Background/Objectives: Orchialgia following kidney donation is an underrecognized complication with reported incidence varying dramatically between retrospective (2–3%) and prospective (44–55%) studies, suggesting significant underreporting. This study aimed to determine the incidence, characteristics, and clinical relevance of orchialgia in male kidney donors within 2 years post-donation using direct patient assessment. Methods: This is a cross-sectional study of 100 male donors (64.5% response rate) from 155 eligible donors approached who underwent left laparoscopic donor nephrectomy between February 2021 and 2023. Donors completed a literature-based 15-item questionnaire at routine follow-up visits assessing testicular pain characteristics, timing, and impact. Results: Orchialgia occurred in 48% (48/100) of donors. Early onset (≤14 days) occurred in 47%, with median onset at day 2 (range 1–14). At 3-month follow-up, 37% reported persistent pain; by 1 year, only 0.8% experienced persistent pain based on our 10-year institutional database. No significant difference in incidence between altruistic (54%) and related donors (33%), though pain severity was lower in altruistic donors (mean 3.6 vs. 4.2, p = 0.04, independent t-test). Conservative management was effective in all cases; no invasive interventions were required. Conclusions: Orchialgia affects nearly half of male kidney donors when directly assessed, though it follows a benign, self-limiting course with minimal long-term clinical impact. These findings support enhanced preoperative counseling while reassuring donors about favorable outcomes.

5 September 2025 in Surgical Techniques Development
Verified
Journal Article
Open access
PDF file
AGAviad Gravetz
Aviad Gravetz
VTVladimir Tennak
Vladimir Tennak
VMVadym Mezhybovsky
Vadym Mezhybovsky
MGMichael Gurevich
Michael Gurevich
SESigal Eisner
Sigal Eisner
ENEviatar Nesher
Eviatar Nesher
Background/Objectives: Double ureter kidney grafts raise concerns about increased urologic complications. Limited data exist on optimal surgical management due to small sample sizes in previous reports. This study evaluated outcomes using pantaloon ureteroneocystostomy in the largest reported cohort worldwide. Research Questions: Does pantaloon ureteroneocystostomy achieve comparable outcomes to single ureter transplants? Are long-term graft survival and function equivalent? Should this technique be adopted as standard practice? Methods: This retrospective matched cohort study involves 2210 kidney transplantations (2010–2024). Twenty-six double ureter grafts underwent pantaloon ureteroneocystostomy with dual stenting. Controls matched 1:1 for donor type, era, and recipient characteristics. The primary outcome was urologic complications. Statistical analysis included Kaplan–Meier survival curves and Mann–Whitney U tests. Results: Groups were well matched (median age: 51 vs. 52 years, 50% living donors each). Urologic complications occurred in 3.8% double ureter versus 7.7% control grafts (p = 1.000), markedly lower than 15.4% reported in recent literature. The single complication was early urinary leak, surgically repaired. No late strictures developed. The 5-year graft survival was 96.0% vs. 92.3% (p = 1.000). The final creatinine was comparable (1.25 vs. 1.28 mg/dL, p = 0.891). Conclusions: The pantaloon technique achieves superior outcomes in the largest reported double ureter cohort, with complication rates lower than previously published series. These findings support adopting this standardized approach globally to expand donor criteria while maintaining excellent outcomes.

19 October 2021 in Transplantology
Verified
Journal Article
Open access
PDF file
AGAviad Gravetz
Aviad Gravetz
VTVladimir Tennak
Vladimir Tennak
VMVadym Mezhebovsky
Vadym Mezhebovsky
MGMichael Gurevich
Michael Gurevich
SESigal Eisner
Sigal Eisner
ENEviatar Nesher
Eviatar Nesher
Coronavirus disease 2019 (COVID-19) has affected tens of millions of people globally since it was declared a pandemic by the World Health Organization on 11 March 2020. Since its outbreak in December 2019, the ongoing coronavirus COVID-19 pandemic has led to global social, economic and healthcare crises affecting millions of people and causing the death of hundreds of thousands of people worldwide. As with other fields of healthcare, the pandemic with its heavy workload imposed on hospital services and personnel significantly affected solid organ transplantation. Concerns for potential exposure to the virus and its related severe acute respiratory syndrome coronavirus type 2 (SARS-CoV2) have profoundly altered the process of organ donation and recovery, acceptance of organ offers, management of potential recipients and living donors, and above all transplanted and immunosuppressed patients. All those issues required prompt implementation of new practice measures and guidelines as well as continuous adaptations to the fluid and rapidly changing situation. Herein we describe a single transplant center experience with kidney transplantation during the COVID-19 pandemic; we review the national and institutional measures and restrictions undertaken in different phases of the ongoing event as well as the outcomes.

14 November 2025 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
Fahim KananiFahim Kanani
Fahim Kanani
YAYael Ben Avraham
Yael Ben Avraham
VTVladimir Tennak
Vladimir Tennak
WMWadim Mezebovsky
Wadim Mezebovsky
MGMichael Gurevich
Michael Gurevich
ENEviatar Nesher
Eviatar Nesher
Background: Uncontrolled donation after circulatory death (uDCD) remains underutilized globally, despite critical organ shortages. We report outcomes from Israel’s uDCD kidney transplant program compared with the matched donation after brain death (DBD) recipients. Methods: This retrospective cohort study analyzed all uDCD kidney transplants performed at the Rabin Medical Center between January 2018 and December 2024, compared with DBD transplants during the same period. Propensity score matching (1:3 ratio) was performed using recipient demographics, comorbidities, and donor characteristics. Primary outcomes included delayed graft function (DGF), graft failure, and patient survival. Results: Among 92 kidney transplants, 21 (22.8%) were from uDCD donors. After propensity-matching (21 uDCD, 63 DBD), significant baseline differences persisted: uDCD recipients were younger (47.2 ± 11.8 vs. 57.5 ± 10.9 years, p < 0.001) despite a similar dialysis vintage (7.2 ± 3.2 vs. 7.7 ± 3.7 years, p = 0.569). Warm ischemia time was 58.5 ± 12.3 vs. 3.0 ± 0.0 min (p < 0.001), and cold ischemia time was longer in uDCD (13.7 ± 5.9 vs. 8.4 ± 2.5 h, p < 0.001). DGF occurred in 90.5% of uDCD versus 54.1% of DBD recipients (p = 0.006). Graft failure was markedly higher in uDCD (28.6% vs. 1.6%, p = 0.001), yet mortality was lower (14.3% vs. 27.9%, p = 0.339). After a median follow-up of 60 months (IQR 48–72) for both groups, the death-censored 5 year graft survival rate was 71.4% for uDCD versus 98.4% for DBD (p < 0.001). Conclusions: Despite higher rates of DGF and graft failure, uDCD kidney transplantation demonstrated an acceptable 5 year patient survival rate in carefully selected younger recipients. These findings support cautious expansion of uDCD programs with rigorous recipient selection criteria and realistic outcome expectations.