Yuksel Altinel

Dr. Yuksel Altinel

orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

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

Representative Publications

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24 May 2022 in The Lancet Global Health
Verified
Journal Article
Open access
CSCatherine A Shaw
Catherine A Shaw
RPRiinu Pius
Riinu Pius
TDThomas M Drake
Thomas M Drake
LNLisa Norman
Lisa Norman
AAAdesoji O Ademuyiwa
Adesoji O Ademuyiwa
JLJean Wilguens Lartigue
Jean Wilguens Lartigue
Early death after cancer surgery is higher in low-income and middle-income countries (LMICs) compared with in high-income countries, yet the impact of facility characteristics on early postoperative outcomes is unknown. The aim of this study was to examine the association between hospital infrastructure, resource availability, and processes on early outcomes after cancer surgery worldwide. A multimethods analysis was performed as part of the GlobalSurg 3 study—a multicentre, international, prospective cohort study of patients who had surgery for breast, colorectal, or gastric cancer. The primary outcomes were 30-day mortality and 30-day major complication rates. Potentially beneficial hospital facilities were identified by variable selection to select those associated with 30-day mortality. Adjusted outcomes were determined using generalised estimating equations to account for patient characteristics and country-income group, with population stratification by hospital. Between April 1, 2018, and April 23, 2019, facility-level data were collected for 9685 patients across 238 hospitals in 66 countries (91 hospitals in 20 high-income countries; 57 hospitals in 19 upper-middle-income countries; and 90 hospitals in 27 low-income to lower-middle-income countries). The availability of five hospital facilities was inversely associated with mortality: ultrasound, CT scanner, critical care unit, opioid analgesia, and oncologist. After adjustment for case-mix and country income group, hospitals with three or fewer of these facilities (62 hospitals, 1294 patients) had higher mortality compared with those with four or five (adjusted odds ratio [OR] 3·85 [95% CI 2·58–5·75]; p<0·0001), with excess mortality predominantly explained by a limited capacity to rescue following the development of major complications (63·0% vs 82·7%; OR 0·35 [0·23–0·53]; p<0·0001). Across LMICs, improvements in hospital facilities would prevent one to three deaths for every 100 patients undergoing surgery for cancer. Hospitals with higher levels of infrastructure and resources have better outcomes after cancer surgery, independent of country income. Without urgent strengthening of hospital infrastructure and resources, the reductions in cancer-associated mortality associated with improved access will not be realised. National Institute for Health and Care Research.

11 May 2023 in World Journal of Emergency Surgery
Verified
Journal Article
Open access
PDF file
AKAndrew Wallace Kirkpatrick
Andrew Wallace Kirkpatrick
ACand Federico Coccolini
and Federico Coccolini
MTMatti Tolonen
Matti Tolonen
SMSamuel Minor
Samuel Minor
Fausto CatenaFausto Catena
Fausto Catena
ZZZAIDI ZAKARIA
ZAIDI ZAKARIA
Background: Severe complicated intra-abdominal sepsis (SCIAS) has an increasing incidence with mortality rates over 80% in some settings. Mortality typically results from disruption of the gastrointestinal tract, progressive and self-perpetuating bio-mediator generation, systemic inflammation, and multiple organ failure. A further therapeutic option may be open abdomen (OA) management with negative peritoneal pressure therapy (NPPT) to remove inflammatory ascites and attenuate the systemic damage from SCIAS, although there are definite risks of leaving the abdomen open whenever it might possibly be closed. This potential therapeutic paradigm is the rationale being assessed in the Closed Or Open after Laparotomy (COOL trial) (https://clinicaltrials.gov/ct2/show/NCT03163095). Initially, the COOL trial received Industry sponsorship; however, this funding mandated the use of a specific trademarked and expensive NPPT device in half of the patients allocated to the intervention (open) arm. In August 2022, the 3 M/Acelity Corporation without consultation but within the terms of the contract canceled the financial support of the trial. Although creating financial difficulty, there is now no restriction on specific NPPT devices and removing a cost-prohibitive intervention creates an opportunity to expand the COOL trial to a truly global basis. This document describes the evolution of the COOL trial, with a focus on future opportunities for global growth of the study. Methods: The COOL trial is the largest prospective randomized controlled trial examining the random allocation of SCIAS patients intra-operatively to either formal closure of the fascia or the use of the OA with an application of an NPPT dressing. Patients are eligible if they have free uncontained intraperitoneal contamination and physiologic derangements exemplified by septic shock OR severely adverse predicted clinical outcomes. The primary outcome is intended to definitively inform global practice by conclusively evaluating 90-day survival. Initial recruitment has been lower than hoped but satisfactory, and the COOL steering committee and trial investigators intend with increased global support to continue enrollment until recruitment ensures a definitive answer. Discussion: OA is mandated in many cases of SCIAS such as the risk of abdominal compartment syndrome associated with closure, or a planned second look as for example part of “damage control”; however, improved source control (locally and systemically) is the most uncertain indication for an OA. The COOL trial seeks to expand potential sites and proceed with the evaluation of NPPT agnostic to device, to properly examine the hypothesis that this treatment attenuates systemic damage and improves survival. This approach will not affect internal validity and should improve the external validity of any observed results of the intervention. Trial registration: National Institutes of Health (https://clinicaltrials.gov/ct2/show/NCT03163095).

16 December 2022 in World Journal of Emergency Surgery
Verified
Journal Article
Open access
PDF file
Belinda De SimoneBelinda De Simone
Belinda De Simone
FAFikri M. Abu-Zidan
Fikri M. Abu-Zidan
ECElie Chouillard
Elie Chouillard
SSSalomone Di Saverio
Salomone Di Saverio
MSMassimo Sartelli
Massimo Sartelli
Fausto CatenaFausto Catena
Fausto Catena
Background: The incidence of the highly morbid and potentially lethal gangrenous cholecystitis was reportedly increased during the COVID-19 pandemic. The aim of the ChoCO-W study was to compare the clinical findings and outcomes of acute cholecystitis in patients who had COVID-19 disease with those who did not. Methods: Data were prospectively collected over 6 months (October 1, 2020, to April 30, 2021) with 1-month follow-up. In October 2020, Delta variant of SARS CoV-2 was isolated for the first time. Demographic and clinical data were analyzed and reported according to the STROBE guidelines. Baseline characteristics and clinical outcomes of patients who had COVID-19 were compared with those who did not. Results: A total of 2893 patients, from 42 countries, 218 centers, involved, with a median age of 61.3 (SD: 17.39) years were prospectively enrolled in this study; 1481 (51%) patients were males. One hundred and eighty (6.9%) patients were COVID-19 positive, while 2412 (93.1%) were negative. Concomitant preexisting diseases including cardiovascular diseases (p < 0.0001), diabetes (p < 0.0001), and severe chronic obstructive airway disease (p = 0.005) were significantly more frequent in the COVID-19 group. Markers of sepsis severity including ARDS (p < 0.0001), PIPAS score (p < 0.0001), WSES sepsis score (p < 0.0001), qSOFA (p < 0.0001), and Tokyo classification of severity of acute cholecystitis (p < 0.0001) were significantly higher in the COVID-19 group. The COVID-19 group had significantly higher postoperative complications (32.2% compared with 11.7%, p < 0.0001), longer mean hospital stay (13.21 compared with 6.51 days, p < 0.0001), and mortality rate (13.4% compared with 1.7%, p < 0.0001). The incidence of gangrenous cholecystitis was doubled in the COVID-19 group (40.7% compared with 22.3%). The mean wall thickness of the gallbladder was significantly higher in the COVID-19 group [6.32 (SD: 2.44) mm compared with 5.4 (SD: 3.45) mm; p < 0.0001]. Conclusions: The incidence of gangrenous cholecystitis is higher in COVID patients compared with non-COVID patients admitted to the emergency department with acute cholecystitis. Gangrenous cholecystitis in COVID patients is associated with high-grade Clavien-Dindo postoperative complications, longer hospital stay and higher mortality rate. The open cholecystectomy rate is higher in COVID compared with non -COVID patients. It is recommended to delay the surgical treatment in COVID patients, when it is possible, to decrease morbidity and mortality rates. COVID-19 infection and gangrenous cholecystistis are not absolute contraindications to perform laparoscopic cholecystectomy, in a case by case evaluation, in expert hands. Graphical
1

11 July 2012 in Hernia
Verified
Journal Article
Closed access
PDF file
YAYuksel Altinel
Yuksel Altinel
EÖE. Öztürk
E. Öztürk
GÖG. Özkaya
G. Özkaya
EAE. Ü. Akyıldız
E. Ü. Akyıldız
YUY. Ulcay
Y. Ulcay
HÖH. Özgüç
H. Özgüç

1 January 2018 in Turkish Journal of Trauma and Emergency Surgery
Verified
Journal Article
Open access
YAYuksel Altinel
Yuksel Altinel
We evaluated the feasibility of chitosan-coated sutures for intestinal anastomosis strength through wound-healing effect. Vicryl and PDS sutures were coated with 2% chitosan. While laparotomy was applied to the first group, chitosan was applied in the peritoneal cavity in the second group. Then the following materials were applied to colon anastomosis, in order: Vicryl, PDS, chitosan-coated Vicryl, and chitosan-coated PDS sutures. On the 7th and 14th days, eight rats from each group were euthanized. The adhesion scores of chitosan and control groups were lower than the suture groups. The vascularization of Vicryl-chitosan was lower than PDS-chitosan on the 14th day (p=0.038). Fibroblast cells and vascularization of anastomosis with chitosan-coated Vicryl were lower than Vicryl and chitosan-coated PDS on the 14th day (p<0.05). The tensile strength of Vicryl-chitosan increased more than Vicryl in vitro (p<0.05) on the 14th and 7th days, but there was no difference in vivo. The tensile strength of PDS-chitosan decreased more than PDS on the 7th day in vivo (p<0.05). The chitosan-coating effect on the adhesion and reinforcement of anastomosis in some parts of Vicryl in vitro and PDS in vivo was slightly improved.

1 January 2019 in Turkish Journal of Trauma and Emergency Surgery
Verified
Journal Article
Closed access
YAYuksel Altinel
Yuksel Altinel
BACKGROUND: Curcumin is an antioxidant and anti-inflammatory molecule known to be a potent inhibitor of nuclear factor kappa B (NF-kappa B). In this study, we aimed to investigate the therapeutic effects of curcumin on colitis induced by a 2,4,6-trinitrobenzene sulfonic acid (TNBS). METHODS: After the induction of colitis under anesthesia, 42 rats were divided into six groups as follows; the curcumin oral group, curcumin (20 mg/kg); the corn oil oral group, corn oil (20 mg/kg) using gastric gavage, the curcumin rectal group, curcumin; the corn oil rectal group, corn oil; the control group, 1 mL saline solution (0.9% NaCl) were administered using the rectal route. In the sham group, only rectal catheterization was performed. At the end of the seven day, the blood and intestinal tissue samples were obtained for histopathological examination and for MPO, MDA, NO, PDGF, IL-6, TNF-alpha, NF-kappaB. RESULTS: The macroscopic damage score was significantly higher in curcumin oral, corn oil oral and saline groups when compared to the sham group (p<0.05). The significant differences between groups were evaluated using the biochemical analysis of intestinal tissue for IL-6, NO, NF-kappa B, PDGF, TNF-alpha, MDA, MPO (p<0.05). NF-kappa B levels of blood in curcumin oral, curcumin rectal, sham, corn oil oral, corn oil rectal groups were significantly increased when compared to saline rectal group (p <= 0.001). NF-kappa B serum levels of corn oil rectal and control group (p <= 0.001) were lower than the sham group (p=0.012). CONCLUSION: The effects of curcumin improved possibly by modulating the NF-kappa B signaling pathway should be considered against colitis alone or in combination with the conventional anti-colitic therapies in future studies.