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Dive into the research topics where Aurél Ottlakán is active.

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Featured researches published by Aurél Ottlakán.


Acta Physiologica Hungarica | 2014

Side effects of the calcineurin inhibitor, such as new-onset diabetes after kidney transplantation

Bernadett Borda; Cs. Lengyel; Tamás Várkonyi; Éva Kemény; Aurél Ottlakán; A. Kubik; Cs. Keresztes; Gy. Lázár

New-onset diabetes after transplantation (NODAT) is one of the frequent complications following kidney transplantation. Patients were randomized to receive cyclosporine A- or tacrolimus-based immunosuppression. Fasting and oral glucose tolerance tests were performed, and the patients were assigned to one of the following three groups based on the results: normal, impaired fasting glucose/impaired glucose tolerance (IFG/IGT), or NODAT. NODAT developed in 14% of patients receiving cyclosporine A-based immunosuppression and in 26% of patients taking tacrolimus (p = 0.0002). Albumin levels were similar, but uric acid level (p = 0.002) and the age of the recipient (p = 0.003) were significantly different comparing the diabetic and the normal groups. Evaluation of tissue samples revealed that acute cellular rejection (ACR) and interstitial fibrosis/tubular atrophy (IF/TA) were significantly different in the NODAT group. The pathological effect of new-onset diabetes after kidney transplantation can be detected in the morphology of the renal allograft earlier, before the development of any sign of functional impairment.


Journal of Thoracic Disease | 2016

Treatment decision based on the biological behavior of pulmonary benign metastasizing leiomyoma.

Aurél Ottlakán; Bernadett Borda; György Lázár; László Tiszlavicz; József Furák

Benign metastasizing leiomyoma (BML) is a rare disease in women undergoing surgery for uterine leiomyoma. About 100 cases have been reported in the literature, none of which describe the biological behavior of lesions. The authors present the case of a 36-year-old, asymptomatic woman who had undergone uterus extirpation seven years earlier for leiomyoma of the uterus. Routine chest radiography revealed multiple nodules in both lungs. Biopsy verified metastases from the original uterine leiomyoma. During a 41-month interval, 87 lesions were removed in seven operations, through mini-thoracotomy [four left-sided (42 lesions); and three right-sided (45 lesions)] by cautery resection and suturing of the parenchyma (n=83), or by wedge resection (n=4). In between the procedures, the patient received continuous oncological treatment (VIP protocol: etoposide, ifosfamide, cisplatin). Mean hospital stay was 5.14 days. Respiratory function tests performed after the last surgery showed near-normal results (FVC: 77%, FEV1: 64%, FEV1/FVC: 0.83). Over time, a decrease in number of newly developed BML nodules was observed. Mean surgical sensitivity [rate of lesions appearing on computerized tomography (CT) and removed during each surgery] of the seven metastasectomies was 95% (range: 40-150%). Pathological examination of the nodules proved that, despite continuous oncological treatment, there were no signs of necrosis, thrombosis, or fibrosis. The number of mitoses within the nodules did not change. According to our surgical results and the fact that oncological treatment did not have a significant effect on the course of the disease, we conclude that in the management of multiple BML lesions, surgically removing as many lesions as possible is advised.


Orvosi Hetilap | 2016

Banff-score-változások a marginális donorokból származó veséknél

Bernadett Borda; Edit Szederkényi; Aurél Ottlakán; Éva Kemény; Viktor Szabó; Zoltán Hódi; György Lázár

Absztrakt Bevezetes: A transzplantacios varolistan szereplő betegek szamanak folyamatos novekedese miatt az idealis donor kriteriumainak kibővitesere van szukseg. Celkitűzes: A szerzők azt a kerdest vizsgaltak, hogy vesetranszplantacio utan egy es ot evvel van-e szignifikans kulonbseg a vesefunkcioban es/vagy -morfologiaban a marginalis es idealis donorbol szarmazo vesevel rendelkező betegek kozott. Modszer: A vizsgalatba 275 beteget vontak be, kozuluk 97 marginalis es 178 „idealis” veserecipiens volt. A marginalis es az „idealis” veserecipiensek koreben vizsgaltak a donoralapadatokat es elemeztek a transzplantacio utan egy es ot evvel a funkcionalis es hisztopatologiai valtozasokat. Eredmenyek: A graft funkciojat vizsgalva a transzplantacio utan egy evvel nem volt kulonbseg a ket betegcsoport kozott, mig az otodik evben a szerumkreatinin szignifikansan magasabb (p = 0,0001) es a glomerularis filtracios rata szignifikansan alacsonyabb volt (p = 0,003) a marginalis veserecipiensek csoportjaban az idealis v...


Virchows Archiv | 2018

The more the micropapillary pattern in stage I lung adenocarcinoma, the worse the prognosis—a retrospective study on digitalized slides

Tamás Zombori; Tibor Nyári; László Tiszlavicz; Regina Pálföldi; Edit Csada; Tibor Géczi; Aurél Ottlakán; Balázs Pécsy; Gábor Cserni; József Furák

Although the majority of lung adenocarcinomas show mixed pattern, only the predominant component is taken into account according to the novel classification. We evaluated the proportion of different patterns and their impact on overall survival (OS) and disease-free survival (DFS). Patterns were recorded according to predominance and their proportions were rated and calculated by objective area measuring on digitalized, annotated slides of resected stage I lung adenocarcinomas. Spearman’s rank correlation, Kaplan-Meier models and the log rank test were used for statistical evaluation. Two hundred forty-three stage I adenocarcinoma were included. Lepidic pattern is more frequent in tumours without recurrence (20 vs. 8%), and lepidic predominant tumours have favourable prognosis (OS 90.5%, DFS 89.4%), but proportions above 25% are not associated with improving outcome. Solid and micropapillary patterns are more frequent in patients with recurrence (48 vs. 5% and 13 vs. 4%) and predominance of each one is associated with unfavourable prognosis (OS 64.1%, DFS 56.3% and OS 28.1%, DFS 28.1%, respectively). Above 25%, a growing proportion of solid or micropapillary pattern is not associated with worsening prognosis. In contrast, tumours having micropapillary pattern as secondly predominant form a different intermediate group (OS 51.1%, DFS 57.8%). Our study was based on measured area of each growth pattern on all available slides digitalized. This is the most precise way of determining the size of each component from the material available. We propose using predominant and secondly predominant patterns for prognostic purposes, particularly in tumours having solid or micropapillary patterns.


Orvosi Hetilap | 2018

Tüdőlebeny-eltávolítást követő kemoterápia tolerabilitását befolyásoló perioperatív tényezők

Aurél Ottlakán; Balázs Pécsy; Edit Csada; Gábor Ádám; Anikó Maráz; Bernadett Borda; György Lázár; József Furák

INTRODUCTION Lung cancer is the leading cause of malignancy-related deaths in Hungary, involving complex surgical and oncological treatment. AIM Factors influencing the tolerability of complete/planned and incomplete postoperative chemotherapy after surgery were analyzed. METHOD During a 6-year period (January 1, 2011-December 31, 2016), data of 72 patients operated with lung cancer (adenocarcinoma and squamous cell carcinoma), receiving complete (4 cycles) and incomplete (<4 cycles) postoperative chemotherapy were analyzed. The following factors among the two groups [complete: n = 53; incomplete: n = 19] were analyzed: gender, mean age, body mass index, Malnutrition Universal Screening Tool, Charlson Comorbidity Index, second malignant tumor, atrial fibrillation, Forced Expiratory Volume 1 sec, Performance Status, open/Video-Assisted Thoracic Surgery (VATS) lobectomy, duration of surgery, postoperative fever, need for transfusion, prolonged air leak, redo surgery, histology, tumor stage. RESULTS The rate of complete postoperative cycles obtained from logistic regression analysis, were substantially higher after VATS lobectomies [n = 26 (83.87%)] compared to open procedures [n = 27 (65.85%)]; (p = 0.092; OR = 0.356), without significance. Multivariate analysis (open/VATS lobectomy, upper/middle-lower lobe resection, diabetes, prolonged air leak, postoperative fever) showed significantly increased successful uptake of complete cycles after VATS (p = 0.0495), while upper/middle lobe resections (p = 0.0678) and the lack of diabetes (p = 0.0971) notably increased the number of complete cycles, without significance. CONCLUSION Twenty-six percent of patients were unable to receive complete planned postoperative chemotherapy. VATS lobectomy patients received significantly higher number of complete cycles of postoperative chemotherapy. Diabetes and lower lobe lobectomies had a negative effect on the tolerability of postoperative chemotherapy. Orv Hetil. 2018; 159(19): 748-755.INTRODUCTION Lung cancer is the leading cause of malignancy-related deaths in Hungary, involving complex surgical and oncological treatment. AIM Factors influencing the tolerability of complete/planned and incomplete postoperative chemotherapy after surgery were analyzed. METHOD During a 6-year period (January 1, 2011-December 31, 2016), data of 72 patients operated with lung cancer (adenocarcinoma and squamous cell carcinoma), receiving complete (4 cycles) and incomplete (<4 cycles) postoperative chemotherapy were analyzed. The following factors among the two groups [complete: n = 53; incomplete: n = 19] were analyzed: gender, mean age, body mass index, Malnutrition Universal Screening Tool, Charlson Comorbidity Index, second malignant tumor, atrial fibrillation, Forced Expiratory Volume 1 sec, Performance Status, open/Video-Assisted Thoracic Surgery (VATS) lobectomy, duration of surgery, postoperative fever, need for transfusion, prolonged air leak, redo surgery, histology, tumor stage. RESULTS The rate of complete postoperative cycles obtained from logistic regression analysis, were substantially higher after VATS lobectomies [n = 26 (83.87%)] compared to open procedures [n = 27 (65.85%)]; (p = 0.092; OR = 0.356), without significance. Multivariate analysis (open/VATS lobectomy, upper/middle-lower lobe resection, diabetes, prolonged air leak, postoperative fever) showed significantly increased successful uptake of complete cycles after VATS (p = 0.0495), while upper/middle lobe resections (p = 0.0678) and the lack of diabetes (p = 0.0971) notably increased the number of complete cycles, without significance. CONCLUSION Twenty-six percent of patients were unable to receive complete planned postoperative chemotherapy. VATS lobectomy patients received significantly higher number of complete cycles of postoperative chemotherapy. Diabetes and lower lobe lobectomies had a negative effect on the tolerability of postoperative chemotherapy. Orv Hetil. 2018; 159(19): 748-755.


Orvosi Hetilap | 2017

Vesetranszplantáció utáni szénhidrátanyagcsere-változások és annak hatásai a cardiovascularis rizikóra

Bernadett Borda; Edit Szederkényi; Zoltán Hódi; Aurél Ottlakán; Viktor Szabó; György Lázár

INTRODUCTION Cardiovascular disease is the major cause of deaths after transplantation, with diabetes mellitus being the main risk factor in development. AIM The aim of our study was to assess the prevalence of new onset diabetes mellitus in connection with the cardiovascular risk predicted by the HEART Score. METHOD 44 patients were involved in our study; after overview of baseline data, OGTT was performed, followed by patient classification into the following groups: normal, impaired fasting glucose/impaired glucose tolerance, and new onset diabetes mellitus. Insulin resistance and kidney function were also assessed. RESULTS Concerning baseline data, cold ischemic time (p = 0.016), body weight (p = 0.035), BMI (p = 0.025), and HbA1C (p = 0.0024) proved to be significantly different between normal and diabetic patients. Significant difference was found based on HOMA IR between the two groups 1.69±0.51 vs 6.46±1.42; p = 0.0017). Based on the HEART Score, patients with new onset diabetes mellitus were put into Group 3, which also reflects the risk which diabetes carries for the development of cardiovascular diseases. CONCLUSION Cardiovascular risk can be decreased with increased allograft survival by early diagnosis and management of diabetes. Orv Hetil. 2017; 158(38): 1512-1516.INTRODUCTION Cardiovascular disease is the major cause of deaths after transplantation, with diabetes mellitus being the main risk factor in development. AIM The aim of our study was to assess the prevalence of new onset diabetes mellitus in connection with the cardiovascular risk predicted by the HEART Score. METHOD 44 patients were involved in our study; after overview of baseline data, OGTT was performed, followed by patient classification into the following groups: normal, impaired fasting glucose/impaired glucose tolerance, and new onset diabetes mellitus. Insulin resistance and kidney function were also assessed. RESULTS Concerning baseline data, cold ischemic time (p = 0.016), body weight (p = 0.035), BMI (p = 0.025), and HbA1C (p = 0.0024) proved to be significantly different between normal and diabetic patients. Significant difference was found based on HOMA IR between the two groups 1.69±0.51 vs 6.46±1.42; p = 0.0017). Based on the HEART Score, patients with new onset diabetes mellitus were put into Group 3, which also reflects the risk which diabetes carries for the development of cardiovascular diseases. CONCLUSION Cardiovascular risk can be decreased with increased allograft survival by early diagnosis and management of diabetes. Orv Hetil. 2017; 158(38): 1512-1516.


Contrast Media & Molecular Imaging | 2017

The Effect of Diagnostic Imaging on Surgical Treatment Planning in Diseases of the Thymus

Aurél Ottlakán; Bernadett Borda; Zita Morvay; Anikó Maráz; József Furák

Accurate imaging of the thymus is essential in the diagnosis and surgical treatment of both neoplastic and nonneoplastic conditions. Imaging of the thymus is a rather complex task, which affects both initial diagnosis and further surgical treatment planning. Imaging techniques include a wide armamentary of possibilities, from the most frequently used computed tomography (CT) to 18-fluorodeoxyglucose positron emission tomography- (18-FDG-PET-) CT and chemical shift magnetic resonance imaging (CS-MRI). In cases where surgical treatment is involved diagnostic imaging is of pivotal importance, not only in distinguishing benign from malignant disease but also in making a way among subtypes of thymic conditions. The article presents a current review of the advantages and backdrops of different imaging techniques used in the diagnosis of benign and malignant thymic conditions, with emphasis on differential imaging of thymic hyperplasia (TH), ectopic thymic tissue (ETT), and thymic epithelial tumors (TETs), with special attention to the importance of MR imaging according to the new TNM classification of thymic epithelial tumors.


Hungarian Journal of Surgery | 2016

Minimálisan invazív tüdőlebeny-eltávolítás eredményei osztályunk ötéves anyagában

József Furák; Balázs Pécsy; Aurél Ottlakán; Tibor Németh; Tibor Géczi; László Tiszlavicz; Anna Lakatos; György Lázár

Absztrakt Bevezetes: Munkankban bemutatjuk az elmult ot evben osztalyunkon, minimalisan invaziv modszerrel (video-assisted thoracic surgery – VATS) elvegzett tudőlobectomiak sebeszi vonatkozasait es korai posztoperativ eredmenyeit. Betegek es modszerek: 2011. januar 1. es 2015. december 31. kozott harom mellkassebesz es egy rezidens 197 VATS-lobectomiat vegzett, 176 esetben malignus es 21 betegnel joindulatu folyamat miatt. A betegek demografiai adatai a kovetkezők: 119 nő es 78 ferfi; atlageletkor 62,4 (41–82) ev. 2011-ben harom VATS-lobectomia tortent, ami az osszlobectomiak 2,2%-a volt, 2012-ben het (7,3%), 2013-ban 13 (12%), 2014-ben 59 (34,5%) es 2015-ben 119 (68,5%). 153 esetben multiportal (78%) es 44 alkalommal uniportal (22%) elulső feltarast alkalmaztunk. Az eltavolitott lebenyek megoszlasa a kovetkező: jobb felső 85, kozepső ot, jobb also 28, bal felső 44, bal also 34, egy felső bilobectomia. Ket alkalommal sleeve lobectomia tortent. Nyolc betegnel (4%) kenyszerultunk thoracotomiara tortenő kon...


Hungarian Journal of Surgery | 2015

Myasthenia gravis miatt végzett három különböző típusú csecsemőmirigy-eltávolítás sebészeti és korai neurológiai eredményei

Aurél Ottlakán; Tibor Géczi; Balázs Pécsy; Bernadett Borda; Judit Lantos; György Lázár; László Tiszlavicz; Péter Klivényi; József Furák

Absztrakt Celkitűzes: A myasthenia gravis (MG) kezeleseben szamos nyitott, illetve minimalisan invaziv thymectomia ismert. A tanulmany ugyanazon intezeten belul a transsternalis (TS), illetve ketfele minimalisan invaziv thymectomia (video-assisted thoracoscopic extended thymectomy – VATET; unilateral video-assisted thoracoscopic surgery – UL-VATS) eredmenyeit hasonlitja ossze. Anyag es modszerek: Harom kulonboző időintervallumban 71 betegnel tortent thymectomia MG miatt (60 nő, 11 ferfi): 23 transsternalis thymectomia (1995. januar–2004. szeptember), 22 VATET (2004. szeptember – 2009. augusztus) es 26 UL-VATS thymectomia (2009. szeptember – 2011. december). Az eredmenyek ertekelesenel a műteti idő, MG-hez tarsulo neurologiai es a műtet utani sebeszi szovődmenyek, valamint az MG statuszaban az egyeves utankoveteskor eszlelt neurologiai valtozasok szerepeltek. Eredmenyek: Perioperativ mortalitas nem fordult elő. A műteti idő 112, 211, 116 perc (p = 0,001), a korhazi napok szama: 8,9, 5,6 es 4 nap (p = 0,001...


Pathology & Oncology Research | 2013

Radioguided Occult Lesion Localisation Versus Wire-Guided Lumpectomy in the Treatment of Non-Palpable Breast Lesions

Tibor Takács; Attila Paszt; Zsolt Simonka; Szabolcs Ábrahám; Bernadett Borda; Aurél Ottlakán; Katalin Ormándi; Máté Lázár; András Vörös; Zsuzsanna Kahán; György Lázár

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