Browsing by Author "Toraman, Fevzi"

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A hybrid therapy as a third approach for type 1 proximal endoleak of thoracic endovascular aortic replacement: Caroticocarotid bypass and re-redo endovascular therapy
(ELSEVIER SCIENCE BV, 2013-01-01) Ariturk, Cem; Okten, Murat; Dagdelen, Sinan; Toraman, Fevzi; Karabulut, Hasan
Introduction: In selected cases with thoracic aortic aneurysm (TAA), thoracic endovascular aortic replacement (TEVAR) is commonly used and shall be proper therapy method. We are presenting a case of TAA previously treated twice by endovascular aortic approaches and complicated by type 1 endoleak. Case: A 67-year-old male patient was admitted to our clinic with back pain at rest. He underwent TEVAR five years ago, twice in 6 month. With contrasted computed tomography of chest and abdomen, a new type 1 proximal endoleak was diagnosed, and after routine preoperative follow up, the patient was operated on. At the same session right to left caroticocarotid bypass and re-redo TEVAR were performed. The new endovascular graft was placed as the proximal landing zone to be set between left carotid artery and brachiocephalic truncus. The patient was discharged on postoperative day 4 without any problems. Conclusion: As new techniques and methods have been developed, mortality rates have decreased to 2-3\% but in older and high risk patients, mortality rates still remain high {[}1]. TEVAR is a safe and effective treatment method in the proper and selected patients with thoracic artery aneurysm {[}2]. Moreover, TEVAR can also be performed as a part of hybrid procedures for arcus aortic aneurysms {[}3]. But it should be kept in mind that late secondary intervention rates are higher in TEVAR. (C) 2013 Production and hosting by Elsevier B.V. on behalf of King Saud University.
Are surgical and non-operating room intervention safe in the COVID-19 pandemic? A retrospective study
(CAMBRIDGE UNIV PRESS, 2021-01-01) Yildirim, Serap Aktas; Sarikaya, Zeynep Tugce; Ulugol, Halim; Ozata, Sanem; Aksu, Ugur; Toraman, Fevzi; Grp, C. O. V. I. D.-19 Study
Little is known about the impact of COVID-19 on the outcomes of patients undergoing surgery and intervention. This study was conducted between 20 March and 20 May 2020 in six hospitals in Istanbul, and aimed to investigate the effects of surgery and intervention on COVID-19 disease progression, intensive care (ICU) need, mortality and virus transmission to patients and healthcare workers. Patients were examined in three groups: group I underwent emergency surgery, group II had an emergency non-operating room intervention, and group III received inpatient COVID-19 treatment but did not have surgery or undergo intervention. Mortality rates, mechanical ventilation needs and rates of admission to the ICU were compared between the three groups. During this period, patient and healthcare worker transmissions were recorded. In total, 1273 surgical, 476 non-operating room intervention patients and 1884 COVID-19 inpatients were examined. The rate of ICU requirement among patients who had surgery was nearly twice that for inpatients and intervention patients, but there was no difference in mortality between the groups. The overall mortality rates were 2.3\% in surgical patients, 3.3\% in intervention patients and 3\% in inpatients. COVID-19 polymerase chain reaction positivity among hospital workers was 2.4\%. Only 3.3\% of infected frontline healthcare workers were anaesthesiologists. No deaths occurred among infected healthcare workers. We conclude that emergency surgery and non-operating room interventions during the pandemic period do not increase postoperative mortality and can be performed with low transmission rates.
Association between night-time surgery and occurrence of intraoperative adverse events and postoperative pulmonary complications
(ELSEVIER SCI LTD, 2019-01-01) Cortegiani, A.; Gregoretti, C.; Neto, A. S.; Hemmes, S. N. T.; Ball, L.; Canet, J.; Hiesmayr, M.; Hollmann, M. W.; Mills, G. H.; Melo, M. F. V.; Putensen, C.; Schmid, W.; Severgnini, P.; Wrigge, H.; de Abreu, M. Gama; Schultz, M. J.; Pelosi, P.; Kroell, Wolfgang; Metzler, Helfried; Struber, Gerd; Wegscheider, Thomas; Gombotz, Hans; Hiesmayr, Michael; Schmid, Werner; Urbanek, Bernhard; Kahn, David; Momeni, Mona; Pospiech, Audrey; Lois, Fernande; Forget, Patrice; Grosu, Irina; Poelaert, Jan; van Mossevelde, Veerle; van Malderen, Marie-Claire; Dylst, Dimitri; van Melkebeek, Jeroen; Beran, Maud; de Hert, Stefan; De Baerdemaeker, Luc; Heyse, Bjorn; Van Limmen, Jurgen; Wyffels, Piet; Jacobs, Tom; Roels, Nathalie; De Bruyne, Ann; van de Velde, Stijn; Leva, Brigitte; Damster, Sandrine; Plichon, Benoit; Juros-Zovko, Marina; Djonovic-Omanovic, Dejana; Pernar, Selma; Zunic, Josip; Miskovic, Petar; Zilic, Antonio; Kvolik, Slavica; Ivic, Dubravka; Azenic-Venzera, Darija; Skiljic, Sonja; Vinkovic, Hrvoje; Oputric, Ivana; Juricic, Kazimir; Frkovic, Vedran; Kopic, Jasminka; Mirkovic, Ivan; Karanovic, Nenad; Carev, Mladen; Dropulic, Natasa; Saric, Jadranka Pavicic; Erceg, Gorjana; Dvorscak, Matea Bogdanovic; Mazul-Sunko, Branka; Pavicic, Anna Marija; Goranovic, Tanja; Maldini, Branka; Radocaj, Tomislav; Gavranovic, Zeljka; Mladic-Batinica, Inga; Sehovic, Mirna; Stourac, Petr; Harazim, Hana; Smekalova, Olga; Kosinova, Martina; Kolacek, Tomas; Hudacek, Kamil; Drab, Michal; Brujevic, Jan; Vitkova, Katerina; Jirmanova, Katerina; Volfova, Ivana; Dzurnakova, Paula; Liskova, Katarina; Dudas, Radovan; Filipsky, Radek; el Kafrawy, Samir; Abdelwahab, Hisham Hosny; Metwally, Tarek; Abdel-Razek, Ahmed; El-Shaarawy, Ahmed Mostafa; Hasan, Wael Fathy; Ahmed, Ahmed Gouda; Yassin, Hany; Magdy, Mohamed; Abdelhady, Mahdy; Mahran, Mohamed; Herodes, Eiko; Kivik, Peeter; Oganjan, Juri; Aun, Annika; Sormus, Alar; Sarapuu, Kaili; Mall, Merilin; Karjagin, Juri; Futier, Emmanuel; Petit, Antoine; Gerard, Adeline; Marret, Emmanuel; Solier, Marc; Jaber, Samir; Prades, Albert; Krassler, Jens; Merzky, Simone; Uhlig, Christopher; Kiss, Thomas; Bundy, Anette; Bluth, Thomas; Gueldner, Andreas; Spieth, Peter; Scharffenberg, Martin; Thiem, Denny Tran; Koch, Thea; Treschan, Tanja; Schaefer, Maximilian; Bastin, Bea; Geib, Johann; Weiss, Martin; Kienbaum, Peter; Pannen, Benedikt; Gottschalk, Andre; Konrad, Mirja; Westerheide, Diana; Schwerdtfeger, Ben; Wrigge, Hermann; Simon, Philipp; Reske, Andreas; Nestler, Christian; Valsamidis, Dimitrios; Stroumpoulis, Konstantinos; Antholopoulos, Georgios; Andreou, Antonis; Karapanos, Dimitris; Theodorak, Kassiani; Gkiokas, Georgios; Tasoulis, Marios-Konstantinos; Sidiropoulou, Tatiana; Zafeiropoulou, Foteini; Florou, Panagiota; Pandazi, Aggeliki; Tsaousi, Georgia; Nouris, Christos; Pourzitaki, Chryssa; Bystritski, Dmitri; Pizov, Reuven; Eden, Arieh; Pesce, Caterina Valeria; Campanile, Annamaria; Marrella, Antonella; Grasso, Salvatore; De Michele, Michele; Bona, Francesco; Giacoletto, Gianmarco; Sardo, Elena; Sottosanti, Luigi Giancarlo Vicari; Solca, Maurizio; Volta, Carlo Alberto; Spadaro, Savino; Verri, Marco; Ragazzi, Riccardo; Zoppellari, Roberto; Cinnella, Gilda; Raimondo, Pasquale; La Bella, Daniela; Mirabella, Lucia; D'antini, Davide; Molin, Alexandre; Brunetti, Iole; Gratarola, Angelo; Pellerano, Giulia; Sileo, Rosanna; Pezzatto, Stefano; Montagnani, Luca; Pasin, Laura; Landoni, Giovanni; Zangrillo, Alberto; Beretta, Luigi; Di Parma, Ambra Licia; Tarzia, Valentina; Dossi, Roberto; Sassone, Marta Eugenia; Sances, Daniele; Tredici, Stefano; Spano, Gianluca; Castellani, Gianluca; Delunas, Luigi; Peradze, Sopio; Venturino, Marco; Arpino, Ines; Sher, Sara; Tommasino, Concezione; Rapido, Francesca; Morelli, Paola; Vargas, Maria; Servillo, Giuseppe; Raineri, Santi Maurizio; Montalto, Francesca; Russotto, Vincenzo; Giarratano, Antonino; Baciarello, Marco; Generali, Michela; Cerati, Giorgia; Leykin, Yigal; Bressan, Filippo; Bartolini, Vittoria; Zamidei, Lucia; Brazzi, Luca; Liperi, Corrado; Sales, Gabriele; Pistidda, Laura; Severgnini, Paolo; Brugnoni, Elisa; Musella, Giuseppe; Bacuzzi, Alessandro; Muhardri, Dalip; Gecaj-Gashi, Agreta; Sada, Fatos; Bytyqi, Adem; Karbonskiene, Aurika; Aukstakalniene, Ruta; Teberaite, Zivile; Salciute, Erika; Tikuisis, Renatas; Miliauskas, Povilas; Jurate, Sipylaite; Kontrimaviciute, Egle; Tomkute, Gabija; Xuereb, John; Bezzina, Maureen; Borg, Francis Joseph; Hemmes, Sabrine; Schultz, Marcus; Hollmann, Markus; Wiersma, Irene; Binnekade, Jan; Bos, Lieuwe; Boer, Christa; Duvekot, Anne; in `t Veld, Bas; Werger, Alice; Dennesen, Paul; Severijns, Charlotte; De Jong, Jasper; Hering, Jens; van Beek, Rienk; Ivars, Stefan; Jammer, Ib; Breidablik, Alena; Hodt, Katharina Skirstad; Fjellanger, Frode; Avalos, Manuel Vico; Mellin-Olsen, Jannicke; Andersson, Elisabeth; Shafi-Kabiri, Amir; Molina, Ruby; Wutai, Stanley; Morais, Erick; Tareco, Gloria; Ferreira, Daniel; Amaral, Joana; Goncalves Castro, Maria de Lurdes; Cadilha, Susana; Appleton, Sofia; Parente, Suzana; Correia, Mariana; Martins, Diogo; Monteirosa, Angela; Ricardo, Ana; Rodrigues, Sara; Horhota, Lucian; Grintescu, Ioana Marina; Mirea, Liliana; Grintescu, Ioana Cristina; Corneci, Dan; Negoita, Silvius; Dutu, Madalina; Garotescu, Ioana Popescu; Filipescu, Daniela; Prodan, Alexandru Bogdan; Droc, Gabriela; Fota, Ruxandra; Popescu, Mihai; Tomescu, Dana; Petcu, Ana Maria; Tudoroiu, Marian Irinel; Moise, Alida; Guran, Catalin-Traian; Gherghina, Iorel; Costea, Dan; Cindea, Iulia; Copotoiu, Sanda-Maria; Copotoiu, Ruxandra; Barsan, Victoria; Tolcser, Zsolt; Riciu, Magda; Moldovan, Septimiu Gheorghe; Veres, Mihaly; Gritsan, Alexey; Kapkan, Tatyana; Gritsan, Galina; Korolkov, Oleg; Kulikov, Alexander; Lubnin, Andrey; Ovezov, Alexey; Prokoshev, Pavel; Lugovoy, Alexander; Anipchenko, Natalia; Babayants, Andrey; Komissarova, Irina; Zalina, Karginova; Likhvantsev, Valery; Fedorov, Sergei; Lazukic, Aleksandra; Pejakovic, Jasmina; Mihajlovic, Dunja; Kusnierikova, Zuzana; Zelinkova, Maria; Bruncakova, Katarina; Polakovicova, Lenka; Sobona, Villiam; Novak-Supe, Barbka; Pekle-Golez, Ana; Jovanov, Miroljub; Strazisar, Branka; Markovic-Bozic, Jasmina; Novak-Jankovic, Vesna; Voje, Minca; Grynyuk, Andriy; Kostadinov, Ivan; Spindler-Vesel, Alenka; Moral, Victoria; Carmen Unzueta, Mari; Puigbo, Carlos; Fava, Josep; Moret, Enrique; Rodriguez Nunez, Monica; Sendra, Mar; Brunelli, Andrea; Rodenas, Frederic; Monedero, Pablo; Hidalgo Martinez, Francisco; Yepes Temino, Maria Jose; Martinez Simon, Antonio; de Abajo Larriba, Ana; Lisi, Alberto; Perez, Gisela; Martinez, Raquel; Granell, Manuel; Tatay Vivo, Jose; Saiz Ruiz, Cristina; de Andres Ibanez, Jose Antonio; Pastor, Ernesto; Soro, Marina; Ferrando, Carlos; Defez, Mario; Aldecoa Alvares-Santullano, Cesar; Perez, Rocio; Rico, Jesus; Jawad, Monir; Saeed, Yousif; Gillberg, Lars; Bengisun, Zuleyha Kazak; Kazbek, Baturay Kansu; Coskunfirat, Nesil; Boztug, Neval; Sanli, Suat; Yilmaz, Murat; Hadimioglu, Necmiye; Senturk, Nuzhet Mert; Camci, Emre; Kucukgoncu, Semra; Sungur, Zerrin; Sivrikoz, Nukhet; Ozgen, Serpil Ustalar; Toraman, Fevzi; Selvi, Onur; Senturk, Ozgur; Yildiz, Mine; Kuvaki, Bahar; Gunenc, Ferim; Kucukguclu, Semih; Ozbilgin, Sule; Maral, Jale; Canli, Seyda; Arun, Oguzhan; Saltali, Ali; Aydogan, Eyup; Akgun, Fatma Nur; Sanlikarip, Ceren; Karaman, Fatma Mine; Mazur, Andriy; Vorotyntsev, Sergiy; Rousseau, Guy; Barrett, Colin; Stancombe, Lucia; Shelley, Ben; Scholes, Helen; Limb, James; Rafi, Amir; Wayman, Lisa; Deane, Jill; Rogerson, David; Williams, John; Yates, Susan; Rogers, Elaine; Pulletz, Mark; Moreton, Sarah; Jones, Stephanie; Venkatesh, Suresh; Burton, Maudrian; Brown, Lucy; Goodall, Cait; Rucklidge, Matthew; Fuller, Debbie; Nadolski, Maria; Kusre, Sandeep; Lundberg, Michael; Everett, Lynn; Nutt, Helen; Zuleika, Maka; Carvalho, Peter; Clements, Deborah; Creagh-Brown, Ben; Watt, Philip; Raymode, Parizade; Pearse, Rupert; Mohr, Otto; Raj, Ashok; Creary, Thais; Chishti, Ahmed; Bell, Andrea; Higham, Charley; Cain, Alistair; Gibb, Sarah; Mowat, Stephen; Franklin, Danielle; West, Claire; Minto, Gary; Boyd, Nicholas; Mills, Gary; Calton, Emily; Walker, Rachel; Mackenzie, Felicity; Ellison, Branwen; Roberts, Helen; Chikungwa, Moses; Jackson, Clare; Donovan, Andrew; Foot, Jayne; Homan, Elizabeth; Montgomery, Jane; Portch, David; Mercer, Pauline; Palmer, Janet; Paddle, Jonathan; Fouracres, Anna; Datson, Amanda; Andrew, Alyson; Welch, Leanne; Rose, Alastair; Varma, Sandeep; Simeson, Karen; Rambhatla, Mrutyunjaya; Susarla, Jaysimha; Marri, Sudhakar; Kodaganallur, Krishnan; Das, Ashok; Algarsamy, Shivarajan; Colley, Julie; Davies, Simon; Szewczyk, Margaret; Smith, Thomas; Fernandez-Bustamante, Ana; Luzier, Elizabeth; Almagro, Angela; Melo, Marcos Vidal; Fernando, Luiz; Sulemanji, Demet; Sprung, Juraj; Weingarten, Toby; Kor, Daryl; Scavonetto, Federica; Tze, Yeo; Investigators, L.A.S. V. E. G. A. S.; Network, P. R. O. V. E.; Anaesthesiology, European Soc
Background: The aim of this post hoc analysis of a large cohort study was to evaluate the association between night-time surgery and the occurrence of intraoperative adverse events (AEs) and postoperative pulmonary complications (PPCs). Methods: LAS VEGAS (Local Assessment of Ventilatory Management During General Anesthesia for Surgery) was a prospective international 1-week study that enrolled adult patients undergoing surgical procedures with general anaesthesia and mechanical ventilation in 146 hospitals across 29 countries. Surgeries were defined as occurring during `daytime' when induction of anaesthesia was between 8: 00 AM and 7: 59 PM, and as `night-time' when induction was between 8: 00 PM and 7: 59 AM. Results: Of 9861 included patients, 555 (5.6\%) underwent surgery during night-time. The proportion of patients who developed intraoperative AEs was higher during night-time surgery in unmatched (43.6\% vs 34.1\%
Can Partial Oxygen Pressure of Urine be an Indicator for Tissue Perfusion?
(AVES, 2019-01-01) Tosun, Mclis; Ulugol, Halim; Aksu, Ugur; Toraman, Fevzi
Objective: None of the advanced monitorisation procedures, which are focusing only on the haemodynamic and blood gas parameters, are sufficient to estimate tissue perfusion adequately. The search for new parameters that are non-invasive and reliable to provide information about tissue hypoperfusion is significant. The purpose of the present study was to evaluate the relationship between urine partial pressure of oxygen (PuO2) and routine systemic tissue perfusion parameters in patients with sepsis-like syndrome and impaired cardiac pressure-volume relationship after an open cardiac surgery. Methods: The study was designed in 50 patients who had elective coronary bypass surgery. Patients were assessed for arterial lactate levels, arterial partial oxygen pressure (PaO2), cardiac output (CO) and PuO2 in bladder urine at 180, 360 and 540 min postoperatively. Results: Tissue perfusion parameters were found to be similar throughout the surgery in addition to no significant rise in plasma creatinine levels. PuO2 was found to be 91 +/- 22, 99 +/- 22 and 97 +/- 13 mmHg, respectively, at the time points described above. Any correlation between PuO2 and other measurements was not determined at any time points. Conclusion: The present study suggests that urine PuO2 has no relationship with routine systemic tissue perfusion parameters, such as PaO2, lactate levels and CO. In our opinion, since the COs of the patients were within the normal limits, and none of the patients developed renal injury, the present study might have been unable to determine any correlation. Further studies focused on patients with transient renal ischaemia are needed.
Ciddi Sol Ventrikül Disfonksiyonuna Bağlı Kalp Yetersizliği Olan Kalp Cerrahisi Hastalarında Preoperatif Levosimendan Kullanımı
(Acıbadem Mehmet Ali Aydınlar Üniversitesi, 2010-01-01) Şenay, Şahin; Toraman, Fevzi; Dağdelen, Sinan; Karabulut, Hasan; Alhan, Cem
ÖZET Amaç: Bu çalışmada ileri derecede sol ventrikül fonksiyon bozukluğuna bağlı kalp yetersizliği olan kalp cerrahisi hastalarında preoperatif levosimendan kullanımının klinik ve hemodinamik etkilerini değerlendirmeyi amaçladık. Çalışma planı: Kardiyopulmoner bypass altında kalp cerrahisi planlanan sol ventrikül ejeksiyon fraksiyonu ≤ %30 olan 10 hasta prospektif olarak çalışmaya dahil edildi. Hastalara operasyondan 4 saat önce başlanıp toplam 24 saat devam edecek şekilde 0.1 mcg/kg/dk dozunda levosimendan uygulandı. Operasyon öncesinde, postoperatif 5. gün ve 1. ayda sol ventrikül ejeksiyon fraksiyonu ölçümleri yapıldı. Postoperatif dönemde 0,4,6,12 ve 24. saatlerde kardiyak indeks, pulmoner kapiller uç basıncı, sistemik vasküler rezistans indeksi, pulmoner vasküler rezistans indeksi, ortalama arteryel basınç, santral venöz basınç, ortalama pulmoner arter basıncı ölçülerek kaydedildi. Bulgular: Tüm hastalara koroner bypass operasyonu yapıldı, ek olarak bir hastada aort kapak replasmanı, bir hastada triküspit kapak tamiri, bir hastada mitral kapak tamiri, bir hastada da sol ventrikül anevrizmektomi işlemi yapıldı. Hastaların ortalama Euroscore puanları 6.5±2.7 idi. Postoperatif dönemde intaaortik balon pompası kullanımı gerekmedi. İnme, böbrek yetmezliği, major infeksiyon ve 1 aylık mortalite gözlenmedi. Pulmoner kapiller uç basıncı postoperatif dönemde istatiksel olarak anlamlı bir şekilde azaldı (p =0.001). Hastaların ortalama takip süresi 11.6± 5.7 ay (range: 4–17) idi. Geç dönemde mortalite veya tekrar kardiyak girişim gereksinimi gözlenmedi. Sol ventrikül ejeksiyon fraksiyonu ölçümleri (operasyon öncesinde; postoperatif 5. gün ve 1. ayda) 27.5±3.1; 37.1±5.4 ve 40.3±10.7 (%) olarak gözlendi (p=0.01). Sonuç: İleri derecede sol ventrikül fonksiyon bozukluğuna bağlı kalp yetersizliği olan kalp cerrahisi hastalarında operasyon öncesi levosimendan kullanımı hemodinamik fonksiyon ve klinik sonuçları iyileştirebilir.
Çok Nadir Görülen Bir Vasküler Patoloji: İntravasküler Fasiitis (Psödosarkom) ve Cerrahi Tedavisi
(Acıbadem Mehmet Ali Aydınlar Üniversitesi, 2010-04-01) Senay, Sahin; Alhan, Cem; Karabulut, Hasan; Bilgi, Selçuk; Dinçer, Alp; Toraman, Fevzi
ÖZET İntravasküler fasiitis (psödosarkom) yüzeyel veya derin fasyadan köken alan ve küçük/ orta arter ve venleri tutabilen benign reaktif myofibroblastik pro liferasyondur. Nadir görülen bir patolojidir. Progresif vasküler tutulum ile seyredebilir ve malign neoplazmlar ile karıştırılabilir. Bu çalışmada kliniği mizde cerrahi olarak tedavi edilen sol subklavian ven yerleşimli intravaskü ler fasiitisli bir olgu sunulmuştur.
Comparative Effects of Blood and Crystalloid Cardioplegia on Cellular Injury and Oxidative Stress in Cardiovascular Surgery
(MEDICAL TRIBUNE INC, 2019-01-01) Ulugol, Halim; Aksu, Ugur; Kocyigit, Muharrem; Kilercik, Meltem; Karduz, Gulsum; Okten, Murat; Toraman, Fevzi
Purpose: The purpose of this study was to evaluate the effect of different cardioplegic solutions on endothelial integrity and oxidative stress in cardiovascular surgery. Methods: In this randomized prospective study, after ethics approval and informed consent, 60 surgical patients were included. Patients undergoing coronary bypass surgery were randomized into two groups as warm blood cardioplegia (n = 30) and cold crystalloid cardioplegia (n = 30) following the cross-clamping. Measurements were performed at three time points: before induction of anesthesia (Ti), at admission to intensive care unit (ICU) (T2) and at the 24th postoperative hour (T3). Besides biochemical routine hemodynamic monitoring, patients were assessed for the sialic acid (SA), ischemic-modified albumin (IMA), advanced oxide protein products (AOPPs), total thiol (SH), and free hemoglobin (fHb) level. Results: Neither crystalloid nor blood cardioplegia led to significant changes in the AOPPs, T-SH, and SA level (p >0.05). Crystalloid cardioplegia, however, increased IMA level compared to both baseline (p <0.01) and blood cardioplegia group (p <0.05). fHb levels were transiently increased in both groups at the second-time point (p <0.001). fHb level was lower in the crystalloid group compared to that in the other group (p <0.05) at T2. Conclusion: Cardioplegia type creates similar effects on glycocalyx integrity. However, myocardial protection could be provided with warm blood cardioplegia.
Did blood transfusion increase mortality in patients with diabetes undergoing isolated coronary artery bypass graft surgery? A propensity score-matched analysis of 816 patients
(BAYCINAR MEDICAL PUBL-BAYCINAR TIBBI YAYINCILIK, 2020-01-01) Kocyigit, Muharrem; Ulugol, Halim; Kiran, Seher Irem; Alhan, Cem; Toraman, Fevzi
Background: The aim of this study was to compare clinical outcomes of blood transfusion in patients with diabetes mellitus undergoing isolated on-pump coronary artery bypass grafting. Methods: The medical records of a total of 1,912 patients (1,300 males, 612 females
Effects of Alprazolam and Melatonin Used for Premedication on Oxidative Stress, Glicocalyx Integrity and Neurocognitive Functions
(AVES, 2018-01-01) Can, Meltem Guner; Ulugol, Halim; Gunes, Isin; Aksu, Ugur; Tosun, Melis; Karduz, Gulsum; Vardar, Kubra; Toraman, Fevzi
Objective: The purpose of this investigation was to compare the effect of alprazolam and melatonin on oxidative stress, glicocalyx integrity and neurocognitive function in patients undergoing coronary artery bypass grafting (CABG). Methods: Overall, 42 patients undergoing CABG were retrospectively included in this study. Blood samples which preserved at -70 degrees C for a previous study were used for this study. The participants were divided into two groups. Patients in the Group A were administered alprazolam before the operation, whereas melatonin was used for premedication in the Group M. Blood samples were collected at three time points {[}T0: before anaesthesia induction, T1: admittance to intensive care unit (ICU), T2: 24 h after ICU admission], and oxidative stress parameters and glicocalyx integrity were evaluated. Furthermore, Mini-Mental State Examination was recorded to measure neurocognitive function. Results: The total thiol levels which were measured as an antioxidant parameter were significantly higher, and free Hb values were significantly lower in the Group M compared to the Group A (p<0.05). No significant differences were found in order to oxidative stress parameter levels, extubation time, length of hospital stay, durations of cross-clamp, cardiopulmonary bypass and operation and Mini-Mental State Examination results between the two groups (p>0.05). Conclusion: In light of positive effects on oxidatif stress parameters, melatonin may be considered as a good and safe premedication agent with its anxiolytic, antioxidant and minimal haemodynamic and respiratory effects.
Effects of Hemodilution and Transfusion on Acute Renal Injury and Neutrophil Gelatinase-Associated Lipocalin
(AVES, 2015-01-01) Kart, Julide Sayin; Toraman, Fevzi
Effects of short-term hyperoxic ventilation on lung, kidney, heart, and liver in a rat model: A biochemical evaluation
(TURKISH ASSOC TRAUMA EMERGENCY SURGERY, 2021-01-01) Aksu, Ugur; Ulugol, Halim; Sungur, Mukadder Orhan; Senturk, Evren; Vardar, Kubra; Senturk, Mert; Toraman, Fevzi
BACKGROUND: Despite studies on the adverse effects of hyperoxia, its use is still recommended by the World Health Organization. The aim of this study was to test the possible harmful effects of hyperoxia on the lung, kidney, heart, and liver in a rat mechanical ventilation model. METHODS: Male Wistar rats were randomly assigned into two groups (n=6/group): Normoxic (FiO(2): 0.3) or hyperoxic (FiO(2): 1.0) ventilation for 4 h. The injury was evaluated in bronchoalveolar lavage (BAL), blood, lung, liver, kidney, and heart was evaluated in terms of cell surface integrity, extracellular matrix (sialic acid, syndecan-1), osmotic stress (free hemoglobin), and redox homeostasis-lipid peroxidaation (malondialdehyde). BAL and wet/dry weight ratio were also evaluated for cellular permeability. RESULTS: Four hours of hyperoxic ventilation did not lead to significant changes in (1) sialic acid, syndecan-1, (2) malondialdehyde levels and wet/dry weight ratio in liver, kidney, heart, and lung compared to normoxic ventilation. CONCLUSION: Mechanical ventilation with hyperoxia seems to have almost similar effects compared to ventilation with normoxia. However, the long term effect of hyperoxia should be evaluated.
Endoskopik Safen Ven Hazırlanması: Türkiye’deki İlk Deneyimler
(Acıbadem Mehmet Ali Aydınlar Üniversitesi, 2014-10-01) Arıtürk, Cem; Ökten, Murat; Güllü, Ümit; Şenay, Şahin; Kılıç, Leyla; Adıgüzel, Mehtap; Toraman, Fevzi; Karabulut, Hasan; Alhan, Cem
ÖZET Amaç: Endoskopik safen ven grefti hazırlanması (EVH) son yıllarda, bazı kli niklerde rutin olarak kullanılmakta olan ve postoperatif dönemde morbidi teyi azaltıp hasta memnuniyetini arttıran bir cerrahi tekniktir. Hastalar ve Yöntemler: Acıbadem Maslak ve Acıbadem Kadıköy Hastaneleri’nde Ekim 2012 ile Mart 2013 tarihleri arasında safen ven greftleri (SVG); kapalı, karbondioksit insuflasyonu kullanılarak endosko pik yöntem ile (The VasoViewTM System, Maquet) hazırlanan 55 vaka ince lendi. Hastaların endoskopik teknikle hazırlanan SVG’lerinin uzunlukları, toplam SVG hazırlanma süresi, postoperatif ağrı skorları, hematom-yara yeri enfeksiyonu gibi lokal bulguları ve gelişen diğer komplikasyonlar kaydedildi. Bulgular: Tüm hastalarda SVG, EVH yöntemi ile hazırlandı, açık tekniğe geçiş olmadı. 2 hastada hazırlanan SVG’lerde gözlenen lokal disseksiyon alanları nedeni ile kısmi olarak kullanılamayan segmentler saptandı. Sonuç: Özellikle EVH tekniğini öğrenme sürecinin tamamlanmasının ardın dan EVHnin hem hastanın kozmetik memnuniyeti açısından hem de posto peratif morbiditeyi azaltması açısından başarılı olacağını düşünmekteyiz.
Erişkin Kalp Cerrahisinde Ekstrakorporeal Dolaşım Sırasında NIRS Yöntemi ile Hepatik ve Renal (somatik) Oksijen Saturasyonu Takibi Anlamlı mı?
(Acıbadem Mehmet Ali Aydınlar Üniversitesi, 2012-07-01) Toraman, Fevzi; Özgen, Serpil Ustalar; Arıtürk, Cem; Sayın, Jülide; Erkek, Esin; Güçlü, Pınar; Ökten, Murat; Güllü, Ümit; Şenay, Şahin; Tektürk, Murat Burak; Karabulut, Hasan; Alhan, Cem
ÖZET Amaç: Erişkin açık kalp cerrahisinde, NIRS yöntemiyle karaciğer ve böbrek dokusu oksijen saturasyonu (KSO2 ,BSO2) ölçümünün, sonuç parametrele ri üzerine olan etkisinin araştırılması. Hastalar ve Yöntemler: Üniversitemiz etik kurul onayı ve onamları alınan ko roner bypass cerrahisi olacak 88 hasta prospektif olarak çalışmaya alındı. Hastalara kliniğimizin rutin açık kalp cerrahisi protokolu dışında preopera tif dönemde, USG ile karaciğer ve sağ böbreğin cilde en yakın yerleri sapta narak operasyon sırasında bu lokalizasyonlara yerleştirilen NIRS problarıy la karaciğer ve böbrek satürasyonlarının takipleri alındı. Ölçümler; indük siyon öncesi (T1), indüksiyon sonrası (T2), ekstrakorporeal dolaşımın (EKD) 10. dk.sı (T3), EKD’ın 20. dk.sı (T4), ısınma sonrası (T5), EKD bitiminde (T6) tekrarlandı.. Aynı süreçlerde pH, pCO2, pO2, laktat, ortalama arter basıncı ve kalp hızı (KH) değerleri de kaydedildi. Karaciğer ve böbrek fonksiyonları preoperatif, postoperatif 2. ve 4. günlerde kreatinin, üre, ALT, AST değerle riyle değerlendirildi. Sonuçlar Pearson korelasyonu ile karşılaştırıldı. Bulgular: Karaciğer ve böbrek oksijen saturasyonu değerleri T2 periyodu dı şında paralel değişim göstermiş olup Pearson korelasyonu yaklaşık r:0,6 dü zeylerinde p<0,001 bulunmuştur. Böbrek saturasyonundaki yüzde değişim ile preoperatif ve postoperatif üre, kreatinin değerleri arasında anlamlı ko relasyon bulunamadı. T2, T4, T5 periyotlarındaki karaciğer saturasyonu yüz de değişimi ile postoperatif 4. gün AST değerleri arasında zayıf ama anlam lı bir korelasyon (r: 0,220 p<0,03 ) vardı. Sonuç: NIRS yöntemi ile erişkinlerde serebral, pediatrik hastalarda serebral ve somatik doku oksijen satürasyonları takip edilmektedir. Çalışmamızda; NIRS değerleri, hemodinamik parametrelerdeki stabilite ile uyumluluk gösterse de, erişkinlerde somatik oksijen satürasyonu takibinin anlamlı olduğunun söylenebilmesi için, perioperatif renal ve hepatik iskemi riskli obez olmayan hastalarda çalışmanın tekrarlanması gerektiği kanısındayız.
Is increased perfusion pressure really necessary during cardiopulmonary bypass?
(OXFORD UNIV PRESS INC, 2012-01-01) Alhan, Cem H.; Toraman, Fevzi; Karabulut, Hasan
Is the Nexfin finger cuff method for cardiac output measurement reliable during coronary artery bypass grafting? A prospective comparison with the echocardiography and FloTrac/Vigileo methods
(TUBITAK SCIENTIFIC \& TECHNICAL RESEARCH COUNCIL TURKEY, 2016-01-01) Ariturk, Cem; Acil, Meltem; Ulugol, Halim; Ozgen, Zehra Serpil Ustalar; Okten, Eyup Murat; Dagdelen, Sinan; Karabulut, Esref Hasan; Alhan, Huseyin Cem; Toraman, Fevzi
Background/aim: The aim of the current study was to assess the accuracy of cardiac output (CO) measurements obtained by the Nexfin finger cuff method as compared with the FloTrac/Vigileo and echocardiography methods in coronary artery bypass grafting (CABG) patients. Materials and methods: First-time elective CABG patients were prospectively enrolled in this study and divided into three groups according to CO measurement method. CO measurements were performed simultaneously by three different contributors and were collected by the fourth one 24 h postoperative in the intensive care unit (ICU). Data were statistically analyzed. Results: Seventeen female and 13 male patients between 42 and 78 years of age (with a mean of 56 +/- 4) were the subjects of this study. The mean CO measurements were 5.9 +/- 1.4 L/min, 5.8 +/- 1.1 L/min, and 6.0 +/- 1.1 L/min for the Nexfin, FloTrac/Vigileo, and echocardiography methods, respectively (P > 0.05). The correlation values between Nexfin and FloTrac/Vigileo, Nexfin and echocardiography, and FloTrac/Vigileo and echocardiography were r = 0.445, r = 0.377, and r = 0.384, respectively (P < 0.05). Conclusion: Nexfin yielded results comparable to those obtained with FloTrac/Vigileo and echocardiography for the postoperative CO assessment of CABG patients. Nexfin may be used in uncomplicated, hemodynamically stable patients in ICU as a reliable and totally noninvasive method of CO measurement.
Ischemia modified albumin: does it change during pneumoperitoneum in robotic prostatectomies?
(BRAZILIAN SOC UROL, 2016-01-01) Ozgen, Serpil Ustalar; Ozveren, Bora; Kilercik, Meltem; Aksu, Ugur; Ay, Binnaz; Tufek, Ilter; Kural, Ali Riza; Turkeri, Levent N.; Toraman, Fevzi
Background: The unique positioning of the patient at steep Trendelenburg with prolonged and increased intra-abdominal pressure (IAP) during robotic radical prostatectomy may increase the risk of splanchnic ischemia. We aimed to investigate the acute effects of IAP and steep Trendelenburg position on the level of ischemia modified albumin (IMA) and to test if serum IMA levels might be used as a surrogate marker for possible covert ischemia during robotic radical prostatectomies. Patients and Methods: Fifty ASA I-II patients scheduled for elective robotic radical prostatectomy were included in this investigation. Exclusion criteria: The patients were excluded from the study when an arterial cannulation could not be accomplished, if the case had to be converted to open surgery or if the calculated intraoperative bleeding exceeded 300ml. All the patients were placed in steep (45 degrees) Trendelenburg position following trocar placement. Throughout the operation the IAP was maintained between 11-14mmHg. Mean arterial blood pressure (MAP), cardiac output (CO) were continuously monitored before the induction and throughout the surgery. Blood gases, electrolytes, urea, creatinine, alanine transferase (ALT), aspartate transferase (AST) were recorded. Additionally, IMA levels were measured before, during and after surgery. Results: (1) MAP, CO, lactate and hemoglobin (Hb) did not significantly change in any period of surgery (p>0.05)
Kardiyak Lenfoma; Olgu Sunumu ve Derleme
(Acıbadem Mehmet Ali Aydınlar Üniversitesi, 2010-10-01) Ökten, Eyüp Murat; Şenay, Şahin; Güllü, Ahmet Ümit; Öztürk, Ahmet; Toraman, Fevzi; Bavbek, Cengiz; Karaarslan, Ercan; Karabulut, Hasan; Bilgi, Selçuk; Alhan, Cem
ÖZET Kardiyak lenfoma çok nadir görülen ve ileri derecede agresif seyirli maligni tedir. Erken tanı ve tedavi uygulaması prognozu belirleyen temel faktörler dendir. Bu çalışmada kliniğimizde tedavi edilen sağ atrial yerleşimli kitle ile karakterize diffüz büyük B hücreli lenfomalı bir olgu sunulmuş ve konu ile ilgili literatür derlenmiştir.
Leukocyte-Endothelium Interaction in the Sublingual Microcirculation of Coronary Artery Bypass Grafting Patients
(KARGER, 2020-01-01) Uz, Zuhre; Aykut, Guclu; Massey, Michael; Ince, Yasin; Ergin, Bulent; Shen, Lucinda; Toraman, Fevzi; van Gulik, Thomas M.; Ince, Can
Objective: The aim of this study was to apply an innovative methodology to incident dark-field (IDF) imaging in coronary artery bypass grafting (CABG) patients for the identification and quantification of rolling leukocytes along the sublingual microcirculatory endothelium. Methods: This study was a post hoc analysis of a prospective study that evaluated the perioperative course of the sublingual microcirculation in CABG patients. Video images were captured using IDF imaging following the induction of anesthesia (T-0) and cardiopulmonary bypass (CPB) (T-1) in 10 patients. Rolling leukocytes were identified and quantified using frame averaging, which is a technique that was developed for correctly identifying leukocytes. Results: The number of rolling leukocytes increased significantly from T-0 (7.5 {[}6.4-9.1] leukocytes/capillary-postcapillary venule/4 s) to T-1 (14.8 {[}13.2-15.5] leukocytes/capillary-postcapillary venule/4 s) (p < 0.0001). A significant increase in systemic leukocyte count was also detected from 7.4 +/- 0.9 x 10(9)/L (preoperative) to 12.4 +/- 4.4 x 10(9)/L (postoperative) (p < 0.01). Conclusion: The ability to directly visualize leukocyte-endothelium interaction using IDF imaging facilitates the diagnosis of a systemic inflammatory response after CPB via the identification of rolling leukocytes. Integration of the frame averaging algorithm into the software of handheld vital microscopes may enable the use of microcirculatory leukocyte count as a real-time parameter at the bedside.
Measuring potassium level in packed red blood cells before using: Word of caution for congenital cardiac surgery
(WILEY, 2022-01-01) Altun, Dilek; Arnaz, Ahmet; Dogan, Abdullah; Yalcinbas, Yusuf; Turkoz, Riza; Yuksek, Adnan; Altun, Demet; Abdullah, Taner; Ozgen, Serpil Ustalar; Toraman, Fevzi; Sarioglu, Tayyar
Background and Aim of the Study Transfusion-associated hyperpotassemia is a serious complication of packed red blood cell (PRBC) transfusion after congenital cardiac surgery. Our study aimed to identify risk factors and potential preventive measures of transfusion-associated hyperpotassemia in neonates and infants after congenital cardiac surgery. Methods Pediatric patients who underwent congenital cardiac surgery and need transfusion were enrolled in this prospective study. The potassium concentration of PRBC was checked from the sample taken from the segment. The volume of transfusion, age of PRBC, potassium concentration of unit were recorded. The estimated increment of potassium level in patients after PRBC transfusion was calculated. Results Seventy-four individual patients, 95 distinct transfusions, 112 blood products were evaluated. The mean age of the blood unit was 3.8 +/- 1.4 days. The mean potassium concentration in the PRBCs was 9.9 +/- 2.4 mmol/L. A weak correlation was observed between the potassium value of the PRBC and the age of PRBC (p = 0.049, r = 0.2, y = 0.24 x x + -0.68). There was a weak correlation between the potassium value of PRBCs and the age of the unit (p < 0.001, r = 0.37, y = 2.8 x x + -3.6). Conclusions Before transfusion, even PRBC is fresh, measuring the potassium level of PRBC and the potassium that will be given to the pediatric patient with transfusion can prevent transfusion-related hyperpotassemia and related complications. Otherwise, high potassium levels, which may be overlooked despite being fresh, may cause serious complications, even cardiac arrest, especially in neonates and infants.
Microcirculatory Response to Blood vs. Crystalloid Cardioplegia During Coronary Artery BypassGrafting With Cardiopulmonary Bypass
(FRONTIERS MEDIA SA, 2022-01-01) Aykut, Gueclue; Ulugoel, Halim; Aksu, Ugur; Akin, Sakir; Karabulut, Hasan; Alhan, Cem; Toraman, Fevzi; Ince, Can
Background: Blood cardioplegia attenuates cardiopulmonary bypass (CPB)-induced systemic inflammatory response in patients undergoing cardiac surgery, which may favorably influence the microvascular system in this cohort. The aim of this study was to investigate whether blood cardioplegia would offer advantages over crystalloid cardioplegia in the preservation of microcirculation in patients undergoing coronary artery bypass grafting (CABG) with CPB.Methods: In this prospective observational cohort study, 20 patients who received crystalloid (n = 10) or blood cardioplegia (n = 10) were analyzed. The microcirculatory measurements were obtained sublingually using incident dark-field imaging at five time points ranging from the induction of anesthesia (T-0) to discontinuation of CPB (T-5).Results: In the both crystalloid {[}crystalloid cardioplegia group (CCG)] and blood cardioplegia {[}blood cardioplegia group (BCG)] groups, perfused vessel density (PVD), total vessel density (TVD), and proportion of perfused vessels (PPV) were reduced after the beginning of CPB. The observed reduction in microcirculatory parameters during CPB was only restored in patients who received blood cardioplegia and increased to baseline levels as demonstrated by the percentage changes from T-0 to T-5 (\%Delta)(T0-T5) in all the functional microcirculatory parameters {[}\%Delta TVDT0-T5(CCG): -10.86 +/- 2.323 vs. \%Delta TVDT0-T5(BCG): 0.0804 +/- 1.107, p < 0.001