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Sanda II, Hosin S, Vermesan D, Deleanu B, Pop D, Crisan D, Al-Qatawneh M, Mioc M, Prejbeanu R, Rosca O. Impact of Syndesmotic Screw Removal on Quality of Life, Mobility, and Daily Living Activities in Patients Post Distal Tibiofibular Diastasis Repair. Medicina (Kaunas) 2023; 59:2048. [PMID: 38138151 PMCID: PMC10744725 DOI: 10.3390/medicina59122048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 12/24/2023]
Abstract
Background and Objectives: While numerous studies have been conducted on syndesmotic screw management following distal tibiofibular diastasis repair, a clear consensus remains unclear. This research aims to evaluate whether the postoperative removal of syndesmotic screws leads to improved patient outcomes, specifically in quality of life, mobility, and daily living activities, and whether it offers a cost-effective solution. Materials and Methods: Patients with a history of unimalleolar or bimalleolar ankle fractures, classified according to the Danis-Weber and Lauge-Hansen systems, were included. Comprehensive evaluations were made via standardized questionnaires like the SF-36 Health Survey, HADS, and WHOQOL-BREF, distributed approximately 2 months post surgery. A total of 93 patients underwent syndesmotic screw removal while 51 retained the screws (conservative approach). Results: Patients who underwent screw removal reported superior satisfaction in mobility, with a score of 7.8, compared to 6.7 in the conservative approach (p = 0.018). Similarly, their ability to perform daily activities scored 8.1, higher than the 6.5 from the conservative cohort (p < 0.001). Pain levels were also more favorable in the screw removal group, with a score of 5.3 against 6.8 in the conservative group (p = 0.003). On the SF-36 physical domain, the screw removal group achieved a mean score of 55.9 versus 53.3 for the conservative group (p = 0.027). Notably, the HADS anxiety subscale highlighted reduced anxiety levels in the screw removal cohort with a mean score of 5.8 against 7.3 in the conservative group (p = 0.006). However, overall quality of life and recommendations to others showed no significant difference between the groups. Conclusions: Syndesmotic screw removal postoperatively leads to marked improvements in patients' mobility, daily activity abilities, and reduced postoperative pain and anxiety levels. However, overall quality of life was similar between the two approaches. The findings offer valuable insights for orthopedic decision making and patient-centered care concerning the management of syndesmotic screws after distal tibiofibular diastasis repair.
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Affiliation(s)
- Isabella-Ionela Sanda
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania;
- Department of Laboratory Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Samer Hosin
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania;
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (D.V.); (B.D.); (D.P.); (D.C.); (M.A.-Q.); (M.M.); (R.P.)
| | - Dinu Vermesan
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (D.V.); (B.D.); (D.P.); (D.C.); (M.A.-Q.); (M.M.); (R.P.)
| | - Bogdan Deleanu
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (D.V.); (B.D.); (D.P.); (D.C.); (M.A.-Q.); (M.M.); (R.P.)
| | - Daniel Pop
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (D.V.); (B.D.); (D.P.); (D.C.); (M.A.-Q.); (M.M.); (R.P.)
| | - Dan Crisan
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (D.V.); (B.D.); (D.P.); (D.C.); (M.A.-Q.); (M.M.); (R.P.)
| | - Musab Al-Qatawneh
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (D.V.); (B.D.); (D.P.); (D.C.); (M.A.-Q.); (M.M.); (R.P.)
| | - Mihai Mioc
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (D.V.); (B.D.); (D.P.); (D.C.); (M.A.-Q.); (M.M.); (R.P.)
| | - Radu Prejbeanu
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (D.V.); (B.D.); (D.P.); (D.C.); (M.A.-Q.); (M.M.); (R.P.)
| | - Ovidiu Rosca
- Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania;
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Crisan D, Holm DD, Luesink E, Mensah PR, Pan W. Theoretical and Computational Analysis of the Thermal Quasi-Geostrophic Model. J Nonlinear Sci 2023; 33:96. [PMID: 37601550 PMCID: PMC10432375 DOI: 10.1007/s00332-023-09943-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 07/07/2023] [Indexed: 08/22/2023]
Abstract
This work involves theoretical and numerical analysis of the thermal quasi-geostrophic (TQG) model of submesoscale geophysical fluid dynamics (GFD). Physically, the TQG model involves thermal geostrophic balance, in which the Rossby number, the Froude number and the stratification parameter are all of the same asymptotic order. The main analytical contribution of this paper is to construct local-in-time unique strong solutions for the TQG model. For this, we show that solutions of its regularised version α -TQG converge to solutions of TQG as its smoothing parameter α → 0 and we obtain blow-up criteria for the α -TQG model. The main contribution of the computational analysis is to verify the rate of convergence of α -TQG solutions to TQG solutions as α → 0 , for example, simulations in appropriate GFD regimes.
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Affiliation(s)
- D. Crisan
- Department of Mathematics, Imperial College, London, SW7 2AZ UK
| | - D. D. Holm
- Department of Mathematics, Imperial College, London, SW7 2AZ UK
| | - E. Luesink
- Department of Mathematics, University of Twente, 7500 AE Enschede, The Netherlands
| | - P. R. Mensah
- Department of Mathematics, Imperial College, London, SW7 2AZ UK
| | - W. Pan
- Department of Mathematics, Imperial College, London, SW7 2AZ UK
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Crisan D, Ghil M. Asymptotic behavior of the forecast-assimilation process with unstable dynamics. Chaos 2023; 33:023139. [PMID: 36859194 DOI: 10.1063/5.0105590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Extensive numerical evidence shows that the assimilation of observations has a stabilizing effect on unstable dynamics, in numerical weather prediction, and elsewhere. In this paper, we apply mathematically rigorous methods to show why this is so. Our stabilization results do not assume a full set of observations and we provide examples where it suffices to observe the model's unstable degrees of freedom.
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Affiliation(s)
- Dan Crisan
- Department of Mathematics, Imperial College London, 180 Queen's Gate, London SW7 2AZ, United Kingdom
| | - Michael Ghil
- Geosciences Department and Laboratoire de Météorologie Dynamique (CNRS and IPSL), École Normale Supérieure and PSL University, Paris, France
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Hosin S, Vermesan D, Prejbeanu R, Crisan D, Al-Qatawneh M, Pop D, Mioc M, Bratosin F, Feciche B, Hemaswini K, Moise ML, Dumitru C, Bloanca V, Pilut CN. Avoiding the Removal of Syndesmotic Screws after Distal Tibiofibular Diastasis Repair: A Benefit or a Drawback? J Clin Med 2022; 11:jcm11216412. [PMID: 36362640 PMCID: PMC9659076 DOI: 10.3390/jcm11216412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/27/2022] [Accepted: 10/27/2022] [Indexed: 11/29/2022] Open
Abstract
There is still no general agreement about the most effective form of syndesmosis fixation with syndesmotic screws for patients affected by ankle fractures that are accompanied by syndesmotic injuries. In the same manner, no consensus has been reached yet on whether or not the tibiofibular syndesmotic screw is more beneficial if removed or not, as well as the exact timing of removal if this proves superiority. The purpose of this research was to verify whether or not removing syndesmotic screws reduces the risk of developing a diastasis and compare outcomes in patients whose syndesmotic screw was or was not removed at all. A retrospective observational study was carried out to cover a period of five years and a computed sample size of almost 300 cases. Patients were included in the current study if their history was positive for ankle fracture with distal tibiofibular diastasis repair with syndesmotic screws. Loss of reduction was more frequent after screw removal (8.5% vs. 2.1%), although the quality of reduction was generally excellent in both groups. The mean AOFAS score was significantly better in patients who had their tibiofibular screw removed (92.6 vs. 88.4), but the tibiofibular clear space and incisura fibularis depth widened more following the second intervention (3.8 mm vs. 3.6 mm, and, respectively, 4.3 vs. 4.1). Lastly, the same patients with tibiofibular screw removal had a significantly higher cost of total interventions and more days of medical leave (21 vs. 15 days on average). It seems that a strong conclusion in favor of removing or not removing syndesmotic screws after distal tibiofibular diastasis repair cannot be given. However, several radiographic findings lean toward the benefit of those patients whose tibiofibular screws were not removed, although mobility was notably better after the screw was removed. Furthermore, treatment expenses are greatly lowered if a subsequent operation for screw removal is avoided, as well as if individuals who have a single surgery take a shorter medical leave.
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Affiliation(s)
- Samer Hosin
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania
| | - Dinu Vermesan
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania
| | - Radu Prejbeanu
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania
| | - Dan Crisan
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania
| | - Musab Al-Qatawneh
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania
| | - Daniel Pop
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania
| | - Mihai Mioc
- Department of Orthopedics, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania
| | - Felix Bratosin
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Bogdan Feciche
- Department of Urology, Satu-Mare County Emergency Hospital, Strada Ravensburg 2, 440192 Satu-Mare, Romania
- Correspondence:
| | - Kakarla Hemaswini
- Malla Reddy Institute of Medical Sciences, Suraram Main Road 138, Hyderabad 500055, India
| | - Marius Liviu Moise
- Department of Radiology, “Premiere” Hospital—“Regina Maria”, Calea Aradului 113, 300643 Timisoara, Romania
| | - Catalin Dumitru
- Department of Obstetrics and Gynecology, “Premiere” Hospital—“Regina Maria”, Calea Aradului 113, 300643 Timisoara, Romania
| | - Vlad Bloanca
- Department of Plastic Surgery, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Ciprian Nicolae Pilut
- Multidisciplinary Research Center on Antimicrobial Resistance (MULTI-REZ), Microbiology Department, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania
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Orbeanu V, Haragus H, Crisan D, Cirstoiu C, Ristic B, Jamieson V. Novel Parathyroid Hormone-Based Bone Graft, KUR-113, in Treatment of Acute Open Tibial Shaft Fracture: A Phase-2 Randomized Controlled Trial. J Bone Joint Surg Am 2022; 104:441-450. [PMID: 34971551 DOI: 10.2106/jbjs.20.02109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Treatment of an open tibial shaft fracture (TSF) is complex, and many cases are associated with delayed bone union or malunion. Parathyroid hormone (PTH) plays a key role in bone metabolism. A peptide fragment of PTH (PTH1-34) has been shown to promote bone healing. The objective of this study was to evaluate the safety and efficacy of a novel PTH-based bone graft (KUR-113) in the treatment of subjects with an open TSF. METHODS The study was a randomized, controlled, open-label (dose-blinded), dose-finding study of 200 subjects who had an open TSF secondary to trauma. Subjects were randomized into 1 of 4 groups to receive the standard of care (SoC) alone (control) or the SoC plus a single application of 4 mL of KUR-113 containing TGplPTH1-34 in fibrin at a concentration of 0.133 mg/mL (KUR-113-low), 0.4 mg/mL (KUR-113-mid), or 1.0 mg/mL (KUR-113-high). KUR-113 was administered at the fracture site after internal fracture fixation and before wound closure. Subjects were followed for up to 12 months after treatment. The primary outcome measure was fracture healing at 6 months assessed by the study investigator using radiographic and clinical measures. The primary end point was the proportion of subjects with fracture healing at 6 months. RESULTS A total of 200 subjects were enrolled and randomized to 1 of the 4 treatments. The primary end point was met in the KUR-113-mid group, which showed a significantly higher prevalence of healing at 6 months than the control group (37 of 46; 80.4% versus 31 of 48; 64.6%). By 12 months, healing had occurred in the majority of subjects in all treatment groups, with the control group requiring more surgical interventions to achieve fracture healing. Adverse events occurred at similar frequencies between the KUR-113 groups and the SoC group. No ectopic bone formation or abnormal bone resorption at the fracture site was observed in any of the treatment groups. CONCLUSIONS KUR-113 has the potential to be a good adjunctive therapy in the treatment of open TSFs. LEVEL OF EVIDENCE Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
| | - Horia Haragus
- Department of Orthopedics, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Dan Crisan
- Department of Orthopedics, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | | | - Branko Ristic
- Department of Surgery, Faculty of Medical Sciences, University of Kragujevac, Serbia
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Lang O, Crisan D. Well-posedness for a stochastic 2D Euler equation with transport noise. Stoch Partial Differ Equ 2022; 11:433-480. [PMID: 37205178 PMCID: PMC10185632 DOI: 10.1007/s40072-021-00233-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 11/04/2021] [Accepted: 11/18/2021] [Indexed: 05/21/2023]
Abstract
We prove the existence of a unique global strong solution for a stochastic two-dimensional Euler vorticity equation for incompressible flows with noise of transport type. In particular, we show that the initial smoothness of the solution is preserved. The arguments are based on approximating the solution of the Euler equation with a family of viscous solutions which is proved to be relatively compact using a tightness criterion by Kurtz.
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Affiliation(s)
- Oana Lang
- Department of Mathematics, Imperial College London, London, SW7 2AZ UK
| | - Dan Crisan
- Department of Mathematics, Imperial College London, London, SW7 2AZ UK
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Abstract
Spearheaded by the recent efforts to derive stochastic geophysical fluid dynamics models, we present a general framework for introducing stochasticity into variational principles through the concept of a semi-martingale driven variational principle and constraining the component variables to be compatible with the driving semi-martingale. Within this framework and the corresponding choice of constraints, the Euler–Poincaré equation can be easily deduced. We show that the deterministic theory is a special case of this class of stochastic variational principles. Moreover, this is a natural framework that enables us to correctly characterize the pressure term in incompressible stochastic fluid models. Other general constraints can also be incorporated as long as they are compatible with the driving semi-martingale.
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Affiliation(s)
- O. D. Street
- Department of Mathematics, Imperial College London, London, UK
| | - D. Crisan
- Department of Mathematics, Imperial College London, London, UK
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Cass T, Crisan D, Dobson P, Ottobre M. Long-time behaviour of degenerate diffusions: UFG-type SDEs and time-inhomogeneous hypoelliptic processes. ELECTRON J PROBAB 2021. [DOI: 10.1214/20-ejp577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Thomas Cass
- Department of Mathematics, Imperial College London, Huxley Building, 180 Queen’s Gate, London SW7 2AZ, UK
| | - Dan Crisan
- Department of Mathematics, Imperial College London, Huxley Building, 180 Queen’s Gate, London SW7 2AZ, UK
| | - Paul Dobson
- Delft Institute of Applied Mathematics, Delft University of Technology, 2628 XE Delft, The Netherlands
| | - Michela Ottobre
- Maxwell Institute for Mathematical Sciences, Department of Mathematics, Heriot-Watt University, Edinburgh EH14 4AS, UK
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Crisan D, Anstett MJ, Matta N, Farkas DH. Detection of bcl-2 oncogene rearrangement in follicular lymphoma: nucleic acid hybridization and polymerase chain reaction compared. Clin Chem 2019. [DOI: 10.1093/clinchem/39.9.1980] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- D Crisan
- William Beaumont Hosp., Dept. of Clin. Pathol., Royal Oak, MI 48073-6769
| | - M J Anstett
- William Beaumont Hosp., Dept. of Clin. Pathol., Royal Oak, MI 48073-6769
| | - N Matta
- William Beaumont Hosp., Dept. of Clin. Pathol., Royal Oak, MI 48073-6769
| | - D H Farkas
- William Beaumont Hosp., Dept. of Clin. Pathol., Royal Oak, MI 48073-6769
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Crisan D, Grigorescu M, Crisan N, Craciun R, Lupsor M, Radu C, Grigorescu MD, Suciu A, Epure F, Avram L, Leach N. Association between PNPLA3[G]/I148M variant, steatosis and fibrosis stage in hepatitis C virus - genetic matters. J Physiol Pharmacol 2019; 70. [PMID: 31642820 DOI: 10.26402/jpp.2019.4.09] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 08/28/2019] [Indexed: 11/03/2022]
Abstract
There is an established correlation between the PNPLA3 rs738409 C > G single nucleotide polymorphism (SNP) and hepatic steatosis and fibrosis in hepatitis C virus (HCV) infected patients. However not all data is convergent regarding the exact impact of this SNP on the pattern of disease progression in different clinical settings. In this study, we aimed to further bridge the knowledge gap on this topic by investigating the role of the G allele in promoting steatosis, fibrosis and disease progression in relation to other metabolic and anthropometric host factors. Two hundred and fifty consecutive patients, previously diagnosed with chronic hepatitis C (CHC) underwent liver biopsy. Histology was assessed using the Metavir scoring system. Transient elastography was used for follow-up. Ninety-eight patients were genotyped for PNPLA3 rs738409 and followed up for fibrosis progression. PNPLA3 rs738409[G] allele was significantly correlated with severe steatosis (P = 0.04), severe fibrosis at the time of enrollment (P = 0.0005) and fibrosis progression with an OR of 10.31 (95% CI 1.06 - 99.59, P = 0.04), after a mean follow-up time of 62.85 (95%CI: 52.21 - 76.15) months. Severe steatosis at the time of enrollment had an OR of 11.02 (95% CI 1.48 - 82.09, P = 0.01) for the association with fibrosis progression. The HOMA-IR index was also positively correlated with severe fibrosis (P = 0.03) and fibrosis progression on univariate analysis (P = 0.02). PNPLA3 rs738409[G] allele is a reliable predictor for steatosis and fibrosis in CHC. The presence of G allele, along with severe steatosis and insulin resistance are significant predictors for fibrosis progression.
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Affiliation(s)
- D Crisan
- Fifth Medical Clinic, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Municipal Clinical Hospital, Cluj-Napoca, Romania
| | - M Grigorescu
- Third Medical Clinic, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania.,"Prof. Dr. Octavian Fodor" Regional Institute of Gastroenterology and Hepatology Cluj-Napoca, Romania
| | - N Crisan
- Municipal Clinical Hospital, Cluj-Napoca, Romania. .,Department of Surgical Specialties, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - R Craciun
- "Prof. Dr. Octavian Fodor" Regional Institute of Gastroenterology and Hepatology Cluj-Napoca, Romania.
| | - M Lupsor
- "Prof. Dr. Octavian Fodor" Regional Institute of Gastroenterology and Hepatology Cluj-Napoca, Romania.,Department of Medical Imaging, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - C Radu
- Third Medical Clinic, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania.,"Prof. Dr. Octavian Fodor" Regional Institute of Gastroenterology and Hepatology Cluj-Napoca, Romania
| | - M D Grigorescu
- "Prof. Dr. Octavian Fodor" Regional Institute of Gastroenterology and Hepatology Cluj-Napoca, Romania
| | - A Suciu
- "Prof. Dr. Octavian Fodor" Regional Institute of Gastroenterology and Hepatology Cluj-Napoca, Romania
| | - F Epure
- Department of Medical Imaging, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - L Avram
- Fifth Medical Clinic, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Municipal Clinical Hospital, Cluj-Napoca, Romania
| | - N Leach
- Fourth Medical Clinic, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Basu A, Munir S, Mulaw M, Singh K, Herold B, Crisan D, Sindrilaru A, Treiber N, Wlaschek M, Huber-Lang M, Gebhard F, Scharffetter-Kochanek K. 1422 A novel S100A8/A9 induced fingerprint of mesenchymal stem cells is associated with enhanced wound healing. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Crisan D, Janjigian C, Kurtz TG. Particle representations for stochastic partial differential equations with boundary conditions. ELECTRON J PROBAB 2018. [DOI: 10.1214/18-ejp186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Crisan D, Gülke J, Janetzko C, Kastler S, Treiber N, Scharffetter-Kochanek K, Schneider LA. Digit preserving surgery of subungual melanoma: a case series using vacuum assisted closure and full-thickness skin grafting. J Eur Acad Dermatol Venereol 2017; 31:e537-e538. [PMID: 28609554 DOI: 10.1111/jdv.14400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- D Crisan
- Department of Dermatology & Allergology, University of Ulm Albert Einstein Allee 23, D89081 Ulm, Germany
| | - J Gülke
- Section of Hand and Plastic Surgery, University of Ulm Albert Einstein Allee 23, D89081 Ulm, Germany
| | - C Janetzko
- Department of Dermatology & Allergology, University of Ulm Albert Einstein Allee 23, D89081 Ulm, Germany
| | - S Kastler
- Department of Dermatology & Allergology, University of Ulm Albert Einstein Allee 23, D89081 Ulm, Germany
| | - N Treiber
- Department of Dermatology & Allergology, University of Ulm Albert Einstein Allee 23, D89081 Ulm, Germany
| | - K Scharffetter-Kochanek
- Department of Dermatology & Allergology, University of Ulm Albert Einstein Allee 23, D89081 Ulm, Germany
| | - L A Schneider
- Department of Dermatology and Dermatosurgery, Helios Hospital Rottweil, Krankenhausstr. 30, D78628, Rottweil, Germany
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Crisan D, Scharffetter-Kochanek K, Hoffmann TK, Brosch S, Reiter R. [Dysphonia as a Symptom of a laryngeal involvement in pemphigus Vulgaris]. Laryngorhinootologie 2017; 96:40-42. [PMID: 28158888 DOI: 10.1055/s-0042-119072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- D Crisan
- Klinik für Dermatologie und Allergologie, Uniklinikum Ulm, Ulm
| | | | | | - S Brosch
- Sektion Phoniatrie und Pädaudiologie der Universitätsklinik für Hals-, Nasen-, Ohrenheilkunde, Kopf- und Halschirurgie , Ulm
| | - R Reiter
- Sektion Phoniatrie und Pädaudiologie der Universitätsklinik für Hals-, Nasen-, Ohrenheilkunde, Kopf- und Halschirurgie , Ulm
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Crisan D, Radu C, Suciu A, Leach N, Stefanescu H, Avram L, Crisan N, Grigorescu M. Hepatitis C in nonobese nondiabetic patients: Insulin resistance and the metabolic syndrome make a difference. J Viral Hepat 2017; 24:86-87. [PMID: 27700001 DOI: 10.1111/jvh.12610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- D Crisan
- 5th Medical Clinic, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Clinical Municipal Hospital, Cluj-Napoca, Romania
| | - C Radu
- 3rd Medical Clinic, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Hepatology Unit, Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania
| | - A Suciu
- 3rd Medical Clinic, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - N Leach
- 4th Medical Clinic, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - H Stefanescu
- Hepatology Unit, Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania
| | - L Avram
- Clinical Municipal Hospital, Cluj-Napoca, Romania
| | - N Crisan
- Clinical Municipal Hospital, Cluj-Napoca, Romania.,Department of Surgery, Iuliu-Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - M Grigorescu
- Hepatology Unit, Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania
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Crisan D, Scharffetter-Kochanek K, Dummer R, Treiber N, Sindrilaru A, Kastler S, Schneider LA. Beware when the hair turns dark again: clinical presentation and management of melanoma in situ in a giant congenital naevus on the scalp. J Eur Acad Dermatol Venereol 2016; 31:e226-e228. [PMID: 27878885 DOI: 10.1111/jdv.14055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- D Crisan
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert Einstein Allee 23, 89081, Ulm, Germany
| | - K Scharffetter-Kochanek
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert Einstein Allee 23, 89081, Ulm, Germany
| | - R Dummer
- Dermatologische Klinik, Universitätsspital Zürich, Rämistraße 100, Ch8006, Zürich, Schweiz
| | - N Treiber
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert Einstein Allee 23, 89081, Ulm, Germany
| | - A Sindrilaru
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert Einstein Allee 23, 89081, Ulm, Germany
| | - S Kastler
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert Einstein Allee 23, 89081, Ulm, Germany
| | - L A Schneider
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Albert Einstein Allee 23, 89081, Ulm, Germany.,Helios Klinikum Rottweil, Klinik für Dermatologie und Dermatochirurgie, Krankenhausstr. 30, D-78628, Rottweil, Germany
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Abstract
In this paper, we consider diffusion semigroups generated by second-order differential operators of degenerate type. The operators that we consider
do not
, in general, satisfy the Hörmander condition and are
not
hypoelliptic. In particular, instead of working under the Hörmander paradigm, we consider the so-called UFG (uniformly finitely generated) condition, introduced by Kusuoka and Strook in the 1980s. The UFG condition is weaker than the uniform Hörmander condition, the smoothing effect taking place only in certain directions (rather than in every direction, as it is the case when the Hörmander condition is assumed). Under the UFG condition, Kusuoka and Strook deduced sharp
small
time asymptotic bounds for the derivatives of the semigroup in the directions where smoothing occurs. In this paper, we study the
large
time asymptotics for the gradients of the diffusion semigroup in the same set of directions and under the same UFG condition. In particular, we identify conditions under which the derivatives of the diffusion semigroup in the smoothing directions decay exponentially in time. This paper constitutes, therefore, a stepping stone in the analysis of the long-time behaviour of diffusions which do not satisfy the Hörmander condition.
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Affiliation(s)
- D. Crisan
- Department of Mathematics, Imperial College London, Huxley Building, 180 Queen’s Gate, London SW7 2AZ, UK
| | - M. Ottobre
- Department of Mathematics, Heriot-Watt University, Edinburgh EH14 4AS, UK
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Abstract
Throughout recent years, various sequential Monte Carlo methods, i.e. particle filters, have been widely applied to various applications involving the evaluation of the generally intractable stochastic discrete-time filter. Although convergence results exist for finite-time intervals, a stronger form of convergence, namely, uniform convergence, is required for bounding the error on an infinite-time interval. In this paper we prove easily verifiable conditions for the filter applications that are sufficient for the uniform convergence of certain particle filters. Essentially, the conditions require the observations to be accurate enough. No mixing or ergodicity conditions are imposed on the signal process.
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Abstract
Onwards from the mid-twentieth century, the stochastic filtering problem has caught the attention of thousands of mathematicians, engineers, statisticians, and computer scientists. Its applications span the whole spectrum of human endeavour, including satellite tracking, credit risk estimation, human genome analysis, and speech recognition. Stochastic filtering has engendered a surprising number of mathematical techniques for its treatment and has played an important role in the development of new research areas, including stochastic partial differential equations, stochastic geometry, rough paths theory, and Malliavin calculus. It also spearheaded research in areas of classical mathematics, such as Lie algebras, control theory, and information theory. The aim of this paper is to give a brief historical account of the subject concentrating on the continuous-time framework.
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24
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Bratu L, Rogobete A, Papurica M, Sandesc D, Cradigati C, Sarandan M, Dumache R, Popovici S, Crisan D, Stanca H, Tanasescu S, Bedreag O. Literature Research Regarding miRNAs' Expression in the Assessment and Evaluation of the Critically Ill Polytrauma Patient with Traumatic Brain and Spinal Cord Injury. Clin Lab 2016; 62:2019-2024. [DOI: 10.7754/clin.lab.2016.160327] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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25
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Deleanu B, Prejbeanu R, Tsiridis E, Vermesan D, Crisan D, Haragus H, Predescu V, Birsasteanu F. Occult fractures of the proximal femur: imaging diagnosis and management of 82 cases in a regional trauma center. World J Emerg Surg 2015; 10:55. [PMID: 26587053 PMCID: PMC4652353 DOI: 10.1186/s13017-015-0049-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 10/27/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Occult hip fractures are often difficult to identify in busy trauma units. We aimed to present our institutions experience in the diagnosis and treatment of occult fractures around the hip and to help define a clinical and radiological management algorithm. METHOD We conducted a seven-year retrospective hospital medical record analysis. The electronic database was searched for ICD-10 CM codes S72.0 and S72.1 used for proximal femoral fractures upon patient discharge. We identified 34 (4.83 %) femoral neck fractures and 48 (4.42 %) trochanteric fractures labeled as occult. RESULTS The majority of the cases were diagnosed by primary MRI scan (57.4 %) and 12 were diagnosed by emergency CT scan (14.6 %). For the remaining cases the final diagnosis was confirmed by 72 h CT scan in 9 patients (representing 39 % of the false negative cases) or by MRI in the rest of 14 patients. MRI was best at detecting incomplete pertrochanteric fracture patterns (13.45 % of total) and incomplete fractures of the greater trochanter (3.65 % of total) respectively. It also detected the majority of Garden I femoral neck fractures (20.7 % of total). CT scanning accurately detected 100 % of Garden 2 fractures (2.44 %) and 25 % (3.65 %) of the complete pertrochanteric fractures (false negative 25 %). CONCLUSION Occult fractures should be suspected in all patients with traumatic onset of hip pain that is inconsistent with normal radiographic findings. MRI is the golden standard but not as readily available not as cheap and not quite as quick to perform as as a CT scan. The latter which in turn can provide falsely negative results in the first 24 h. Improved imaging protocols could expedite management and improve treatment.
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Affiliation(s)
- Bogdan Deleanu
- />I-st Clinic of Orthopedics and Trauma, Pius Brinzeu Emergency Clinical County Hospital, 10 I. Bulbuca Blvd, 300737 Timisoara, Romania
- />Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timişoara, Romania
| | - Radu Prejbeanu
- />I-st Clinic of Orthopedics and Trauma, Pius Brinzeu Emergency Clinical County Hospital, 10 I. Bulbuca Blvd, 300737 Timisoara, Romania
- />Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timişoara, Romania
| | | | - Dinu Vermesan
- />I-st Clinic of Orthopedics and Trauma, Pius Brinzeu Emergency Clinical County Hospital, 10 I. Bulbuca Blvd, 300737 Timisoara, Romania
- />Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timişoara, Romania
| | - Dan Crisan
- />I-st Clinic of Orthopedics and Trauma, Pius Brinzeu Emergency Clinical County Hospital, 10 I. Bulbuca Blvd, 300737 Timisoara, Romania
| | - Horia Haragus
- />I-st Clinic of Orthopedics and Trauma, Pius Brinzeu Emergency Clinical County Hospital, 10 I. Bulbuca Blvd, 300737 Timisoara, Romania
| | - Vlad Predescu
- />St. Pantelimon Clinical Emergency Hospital, 340 - 342 Pantelimon Road, Sector 2, 033092 Bucharest, Romania
- />Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania
| | - Florin Birsasteanu
- />Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timişoara, Romania
- />Department of Radiology, Pius Brinzeu Emergency Clinical County Hospital, 10 I. Bulbuca Blvd, 300737 Timisoara, Romania
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Schneider LA, Weiss T, Kastler S, Barth T, Crisan D, Psotta Schachtner C, Treiber N, Bottke D, Mayer-Steinacker R. Interdisziplinäre onkologische Versorgung eines Patienten mit Angiosarkom des Nasensattels und mechanischer Herzklappe. Akt Dermatol 2015. [DOI: 10.1055/s-0035-1558605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Schneider LA, Eigentler T, Crisan D, Neckermann V, Kampilafkos P, Sindrilaru A, Scharffetter-Kochanek K, Treiber N. Erkennungshäufigkeit und Zeitraster bei der Erkennung von Melanomen durch den Patienten selbst und was bedeutet das für den Chirurgen? Akt Dermatol 2015. [DOI: 10.1055/s-0035-1558619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Deleanu B, Prejbeanu R, Crisan D, Vermesan D, Predescu V, Tsiridis E. Combined bilateral femoral head necrosis and pertrochanteric fracture: a case report. J Med Case Rep 2015; 9:25. [PMID: 25582648 PMCID: PMC4417321 DOI: 10.1186/1752-1947-9-25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 12/12/2014] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Modular femoral implants have become a regular feature of revision hip surgery. However, for a primary hip arthroplasty, such as a femoral neck fracture case, the implant of choice is a standard femoral component, while compelling literature evidence have made osteosynthesis the standard procedure for the vast majority of trochanteric fractures. CASE PRESENTATION We present the case of a 66-year-old Caucasian woman presenting with two trochanteric fractures associated with primary and secondary hip osteoarthritis that were treated with an uncemented total hip replacement with a modular femoral component. CONCLUSIONS We found that a modular femoral component can address the issues of stability and, in our case, proved to be a viable solution for treating cases that are complicated by concomitant acetabular or femoral head and neck pathology.
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Affiliation(s)
- Bogdan Deleanu
- 1st Orthopedics and Traumatology Clinic, Emergency Clinical County Hospital Timisoara, 10 I. Bulbuca Blvd, 300737, Timisoara, Romania. .,'Victor Babes' University of Medicine and Pharmacy Timisoara, 2 E. Murgu Sq., 300041, Timisoara, Romania.
| | - Radu Prejbeanu
- 1st Orthopedics and Traumatology Clinic, Emergency Clinical County Hospital Timisoara, 10 I. Bulbuca Blvd, 300737, Timisoara, Romania. .,'Victor Babes' University of Medicine and Pharmacy Timisoara, 2 E. Murgu Sq., 300041, Timisoara, Romania.
| | - Dan Crisan
- 1st Orthopedics and Traumatology Clinic, Emergency Clinical County Hospital Timisoara, 10 I. Bulbuca Blvd, 300737, Timisoara, Romania. .,'Victor Babes' University of Medicine and Pharmacy Timisoara, 2 E. Murgu Sq., 300041, Timisoara, Romania.
| | - Dinu Vermesan
- 1st Orthopedics and Traumatology Clinic, Emergency Clinical County Hospital Timisoara, 10 I. Bulbuca Blvd, 300737, Timisoara, Romania. .,'Victor Babes' University of Medicine and Pharmacy Timisoara, 2 E. Murgu Sq., 300041, Timisoara, Romania.
| | - Vlad Predescu
- 'St. Pantelimon' Clinical Emergency Hospital, 340-342 Pantelimon Road, 021659, Bucuresti, Romania. .,'Carol Davila' University of Medicine and Pharmacy Bucharest, 37 Dionisie Lupu St., 020022, Bucuresti, Romania.
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30
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Deleanu B, Prejbeanu R, Crisan D, Vermesan D, Predescu V, Iacob M, Dema A. Subtrochanteric Fracture as First Sign of Metastatic Breast Cancer: Case Presentation. J Med Cases 2015. [DOI: 10.14740/jmc2216w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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32
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Crisan D, Kurtz TG, Lee Y. Conditional distributions, exchangeable particle systems, and stochastic partial differential equations. Ann Inst H Poincaré Probab Statist 2014. [DOI: 10.1214/13-aihp543] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Gabrovska M, Idakiev V, Tenchev K, Nikolova D, Edreva-Kardjieva R, Crisan D. Catalytic performance of Ni-Al layered double hydroxides in CO purification processes. Russ J Phys Chem 2013. [DOI: 10.1134/s0036024413130098] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Abstract
The aim of this paper is to introduce a new numerical algorithm for solving the continuous time nonlinear filtering problem. In particular, we present a particle filter that combines the Kusuoka–Lyons–Victoir (KLV) cubature method on Wiener space to approximate the law of the signal with a minimal variance ‘thinning’ method, called the tree-based branching algorithm (TBBA) to keep the size of the cubature tree constant in time. The novelty of our approach resides in the adaptation of the TBBA algorithm to
simultaneously
control the computational effort and incorporate the observation data into the system. We provide the rate of convergence of the approximating particle filter in terms of the computational effort (number of particles) and the discretization grid mesh. Finally, we test the performance of the new algorithm on a benchmark problem (the Beneš filter).
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Affiliation(s)
- Dan Crisan
- Department of Mathematics, Imperial College London, 180 Queen's Gate, London SW7 2AZ, UK
| | - Salvador Ortiz-Latorre
- Centre of Mathematics for Applications, Oslo University, PO Box 1053 Blindern, 0316 Oslo, Norway
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40
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Grigorescu M, Crisan D, Radu C, Grigorescu MD, Sparchez Z, Serban A. A novel pathophysiological-based panel of biomarkers for the diagnosis of nonalcoholic steatohepatitis. J Physiol Pharmacol 2012; 63:347-353. [PMID: 23070083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 07/17/2012] [Indexed: 06/01/2023]
Abstract
Non-invasive biochemical markers are useful to distinguish between nonalcoholic steatohepatitis (NASH) and simple steatosis. The aim of this study was to test the diagnostic value of a panel of biomarkers derived from the pathophysiological events involved in the development of NASH. A total of 79 patients: 20 not-NASH and 59 NASH were included in the study. Definitive NASH was defined according to Kleiner's classification. In all subjects, parameters of the metabolic syndrome, insulin resistance (HOMA-IR), adiponectin, interleukin-6 (IL-6) and total cytokeratin-18 (M65 antigen) were determined. Univariate and multivariate analysis were used to identify independent predictors of NASH. In multivariate analysis three markers were independently predictors of NASH: adiponectin, IL-6 and M65 levels. In decreasing order, the independent predictors of NASH (NAS≥5) were M65 with an AUROC of 0.791, IL-6 with an AUROC of 0.727 and adiponectin with an AUROC of 0.709. The combination of two biomarkers yelded an AUROC of 0.828 for M65 and IL-6, 0.841 for adiponectin and M65 and 0.852 for adiponectin and IL-6. The best value was obtained by triple combination: adiponectin, M65 and IL-6 with and AUROC of 0.903, Sp=85.7% (PPV=94.2%) and Se=84.5% (NPV=66.7%). In conclusion, a novel pathophysiological - based panel of biomarkers combining total CK-18, IL-6 and adiponectin may be useful to predict NASH.
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Affiliation(s)
- M Grigorescu
- Regional Institute of Gastroenterology and Hepatology, 3rd Medical Clinic, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
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Ignatius RT, Khan F, Jaiyesimi IA, Douglas-Nikitin V, Wills SM, Boura J, Meng X, Crisan D. Correlation of LPL/ADAM-29 expression ratio with IGVH mutational status, ZAP-70 and clinical outcome in patients with chronic lymphocytic leukemia. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.7082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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46
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Affiliation(s)
- Dan Crisan
- Department of Mathematics, Imperial College London, 180 Queen's Gate, London SW7 2AZ, UK
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49
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Crisan D. Highlights of the 10th Annual Beaumont Symposium on Molecular Pathology: "DNA Technology in the Clinical Laboratory". March 8-10, 2001. J Mol Diagn 2001; 3:126-7. [PMID: 11486052 PMCID: PMC1906953 DOI: 10.1016/s1525-1578(10)60662-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- D Crisan
- Department of Clinical Pathology, William Beaumont Hospital, Royal Oak, Michigan
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50
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Khan WA, Yu L, Eisenbrey AB, Crisan D, al Saadi A, Davis BH, Hankin RC, Mattson JC. Hepatosplenic gamma/delta T-cell lymphoma in immunocompromised patients. Report of two cases and review of literature. Am J Clin Pathol 2001; 116:41-50. [PMID: 11447750 DOI: 10.1309/tc9u-fav7-0qbw-6dfc] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
We describe 2 male patients in whom hepatosplenic gamma/delta T-cell lymphoma (HSTL) developed 6 and 10 years after renal transplantation. The onset was abrupt with systemic symptoms, cytopenia, and hepatosplenomegaly. The histologic examination of the spleen (case 1), liver, and bone marrow revealed sinusoidal infiltrates of markedly abnormal lymphocytes. The neoplastic cells in these cases were CD2+, CD3+, CD4-, CD5-, CD7+, CD8+, CD16+, CD56+, beta F1-negative, and TIA-1-negative. Both cases displayed clonal rearrangement of the T-cell receptor (TCR) delta gene and the TCR beta gene. The spleen in case 1 was positive for Epstein-Barr virus genome and showed TCR-gamma gene rearrangement by polymerase chain reaction. Isochromosome 7 [i(7)(q10)] was found in each case. Both patients died within 4 months of diagnosis. HSTL has been reported in only 5 renal transplant recipients. HSTL may be relatively more frequent in immunocompromised patients compared with the general population.
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Affiliation(s)
- W A Khan
- Clinical Pathology Department, William Beaumont Hospital, 3601 W 13 Mile Rd, Royal Oak, MI 48073, USA
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