Researcher:
Erus, Suat

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Faculty Member

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Suat

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Erus

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Erus, Suat

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2015 - 2019162020 - 202214

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Researcher Of Publications: search.filters.isAuthorOfPublication.834e848f-2867-4e88-9a4d-6ed1724438b1

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Now showing 1 - 10 of 31
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    Comparison of surgical methods in patients receiving neoadjuvant treatment; thoracoscopy vs. thoracotomy
    (Elsevier Science Inc, 2022) Özer, K. B.; Mandel, NM; Dilege, S; N/A; N/A; Erus, Suat; Selçukbiricik, Fatih; Tanju, Serhan; Faculty Member; Faculty Member; Faculty Member; School of Medicine; School of Medicine; School of Medicine; Koç University Hospital; N/A; 202015; 214690
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    Is alveolar spread may be predictive with PET CT scanning?
    (Elsevier Science inc, 2017) Zeren, Handan; Selçukbiricik, Fatih; Mandel, Nil Molinas; Tanju, Serhan; Falay, Fikri Okan; Bulutay, Pınar; Zeren, Emine Handan; Erus, Suat; Dilege, Şükrü; Faculty Member; Faculty Member; Faculty Member; Teaching Faculty; Teaching Faculty; N/A; Faculty Member; Faculty Member; School of Medicine; School of Medicine; School of Medicine; School of Medicine; School of Medicine; N/A; School of Medicine; School of Medicine; 202015; 194197; 214690; 246484; 133565; N/A; 175565; 22573
    Background: In this study we aim to investigate predictability of alveolar spread in primary lung cancer by using preoperatively scanning methods. Method: In order to re-evaluate alveolar spread, pathology preparations of 45 patients had operated for primary lung cancer diagnosis and scanned preoperatively with PET CT all in our hospital which interpreted by same nuclear medicine specialists implicated in this study. As using the patients pet CT findings, CTV (computerized tomography volume), MTV (metabolic tumor volume), TLG(total lesion glycolysis), SUDmax, SUDort values and their relation with alveolar spread analyzed. Result: Preoperatively PET-CT scanned all in our hospital 45 patients has included and cause of couldn't reach their pathological preparations, 6 of them exluded from the study. 21 of 39 patients were men (53.8%) , 18 of them were women (46.2%) and mean age was 66.67/+-7.88 (42-80). We didn't detect any relation between CTV, MTV, TLG, SUDmax, SUDort values and alveolar spread (p>0.05). However when the CTV/ MTV ratio analyzed, alveolar spread was statistically more common in the group of patients had ratio lower than 1. (62.9% versus 0%, p:0.01). Conclusion: High local recurrence risk in sublober rejected patients with alveolar spread has indicated in various studies. Regarding this matter, we recommend re-evaluation of the patients for sublober rejections whose CTV/MTV ratio is lower than 1.
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    Comparison of procalcitonin values of patients in intensive care unit with systemic and localized bacterial infections
    (Carbone Editore di Alessandro Pennino, 2016) Inci, A.; Demiraran, Y.; Ocak, Tarik; Akman, C.; Basturk, M.; Kalafat, U.M; N/A; Erus, Suat; Faculty Member; N/A; School of Medicine; N/A; Koç University Hospital; 175565; N/A
    Introduction: Intensive care unit (ICU) hospital infections are a global problem concerning the whole world. Sensitivity and specificity of parameters such as CRP (C-reactive protein), erythrocyte sedimentation rate and WBC (white blood cell), which are among the classical markers of systemic inflammation, were reported to have limited benefit in patients with these types of bacterial infections. PCT (procalcitonin) has been a focus of interest as a specific and early marker in systemic inflammation, sepsis and infections especially in recent years. In this study, we aimed to evaluate potential usability of PCT in distinction of systemic and localized bacterial infections in patients who are followed up in ICU and to compare CRP, WBC and MPV (mean platelet volume) values in patients with systemic and localized bacterial infections. Materials and methods: Totally 52 patients who were followed in Adult ICU of our hospital were included in the study. The patients were divided into two groups. Group 1 consisted of patients with growth in blood culture and systemic bacterial infection clinic. Group 2 consisted of patients with growth in phlegm, tracheal aspirate, wound and urine culture without growth in blood culture. Age, gender, growth region and growing microorganisms, simultaneously checked CRP, PCT, WBC, MPV values were recorded in follow- up form. Results: The study showed that PCT value was significantly high in systemic infections, while other parameters did not show a significant difference between the two groups. Furthermore, Acinetobacter baumannii was found to be the most common agent. Conclusion: Our study suggests that PCT value has a more valuable potential than other standard infection parameters in distinction of systemic infection and localized bacterial infection in patients who are followed in ICU. However, we believe that more comprehensive studies with a larger sampling can guide the clinicians for early diagnosis and treatment.
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    Relation of visceral pleura invasion with hilar lymph node involvement and survival in primary lung cancer
    (Elsevier Science Inc, 2015) Bayrak, Yusuf; Tanju, Serhan; Erus, Suat; Mandel, Nil Molinas; Dilege, Şükrü; Faculty Member; Faculty Member; Faculty Member; Faculty Member; School of Medicine; School of Medicine; School of Medicine; School of Medicine; Koç University Hospital; 214690; 175565; 194197; 122573
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    The role of adjuvant chemotherapy in resected stage I non - small cell lung cancer: a Turkish Oncology Group Study
    (Imprimatur Publications, 2021) Ak, Naziye; Özkan, Berker; Yenigün, Mustafa B.; Yılmazbayhan, Dilek; Toker, Alper; Ferhatoğlu, Ferhat; Yaşar, Arzu; Sak, Serpil Dizbay; Kılıçkap, Sadettin; Önder, Sevgen; Dikmen, Erkan; Alan, Özkan; Yumuk, Perran F.; Bozkurtlar, Emine; Laçin, Tunç; Yıldızeli, Bedrettin; Özturk, Akın; Ürer, Nur; Oyan, Başak; Aydıner, Adnan; Demirkazık, Ahmet; Eralp, Yeşim; Kocatürk, Celalettin; Karapınar, Kemal; Tanju, Serhan; Dilege, Şükrü; Erus, Suat; Bulutay, Pınar; Fırat, Pınar Arıkan; Mandel, Nil Molinas; Faculty Member; Faculty Member; Faculty Member; Teaching Faculty; Faculty Member; Faculty Member; School of Medicine; School of Medicine; School of Medicine; School of Medicine; School of Medicine; School of Medicine; 214690; 122573; 175565; 133565; 207545; 194197
    Purpose: The benefit of adjuvant chemotherapy for tumors smaller than 4 cm is not clear. We aimed to evaluate the prognostic impact of adjuvant platin-based chemotherapy in high-risk stage I patients with non-small cell lung cancer (NSCLC). Methods: This cooperative group study included 232 NSCLC patients who underwent curative surgery for stage I disease with tumor size 2-4 cm. Results: Median age at presentation was 63 years (range 18-90). The mean tumor size was 29.6 +/- 7.3 mm. The frequency of patients with specified risk factors were: visceral pleural effusion (VPI): n: 82 (36.6%); lymphovascular invasion (LVI): n: 86 (39.1%); Grade 3: n: 48 (32.7%); Solid micropapillary pattern (SMP): n: 70 (48.3%). Adjuvant platin-based chemotherapy was administered to 51 patients. During a median follow-up period of 50.5 months 68 patients (29.3%) developed recurrence, 54 (23.3%) died from any cause and 38 (16.4%) of them died of lung cancer. Patients who received chemotherapy compared with the non-chemotherapy group had a longer 5-years relapse-free survival (RFS) (84.5 vs. 61.1%). Also on multivariate analysis, adjuvant chemotherapy was a significant independent prognostic factor for RFS. Conclusion: Adjuvant platin-based chemotherapy should be considered for patients with small tumors with adverse risk factors.
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    Surgical staging and advanced surgical techniques in early stage non-small cell lung cancers
    (Springer, 2016) Bayrak, Yusuf; N/A; N/A; N/A; Dilege, Şükrü; Tanju, Serhan; Erus, Suat; Faculty Member; Faculty Member; Faculty Member; School of Medicine; School of Medicine; School of Medicine; 122573; 214690; 175565
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    Scrape cytology and radiological solid size correlation can be used in the intraoperative management of subsolid lung nodules
    (Wiley) N/A; N/A; N/A; N/A; N/A; N/A; Bulutay, Pınar; Atasoy, Kayhan Çetin; Erus, Suat; Tanju, Serhan; Dilege, Şükrü; Fırat, Pınar Arıkan; Teaching Faculty; Faculty Member; Faculty Member; Faculty Member; Faculty Member; Faculty Member; School of Medicine; School of Medicine; School of Medicine; School of Medicine; School of Medicine; School of Medicine; 133565; 189220; 175565; 214690; 122573; 207545
    Background: The term radiologic subsolid lung nodule (SLN) represents a heterogeneous group of non-neoplastic and neoplastic lesions. Intraoperative evaluation (IO) is often required to differentiate and diagnose. The current study aims to investigate the feasibility and reliability of scrape cytology (SC) and radiologic solid size correlation for the IO diagnosis of SLNs.Methods: Sixty-eight patients with SLN signs were eligible to take part in the study due to intraoperatively prepared SC slides. We managed to complete the blind radio logic solid size measurement and cytologic evaluation retrospectively. Cases were grouped into three categories based on their cytological features: Group-0 (Benign), Group-1 (mild atypical features), and Group-2 (severe atypical features/unequivocally carcinoma). IO diagnoses were given by combining the radiologic solid size and cytological findings.Results: Cytological features of Group-1 were observed in 100%, 93%, 32.5%, and 17% of the AIS, MIA, IA, and benign lesions, respectively. Cytological features of Group-2 were observed in 67.5%, and 7% of the IA and MIA, respectively. By combining cytology with radiologic solid size, 100%, 85%, 71%, and 83% of the AIS, IA, MIA, and benign lesions respectively were diagnosed correctly. Fifteen (15%) percent of the IA cases were underdiagnosed as MIA since their radiological solid sizes were less than 0.5 cm with cytological features of Group-1. Conversely, 29% of the MIA cases were overdiagnosed as IA since their radiological solid sizes were greater than 0.5 cm. Conclusion: SLNs should be handled with caution in terms of IO management. SC and radiologic solid size correlation both provide a practical and tissue-protecting approach for the IO evaluation of SLNs, ensuring a high consistency between IO and definitive diagnosis.
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    A rare presentation of a rare disease: endobronchial hamartoma with lobar bronchiectasis
    (Turkish Society of Thoracic Surgery, 2020) Kapdağlı, Murat; Yavuz, Ömer; Erus, Suat; Bulutay, Pınar; Tanju, Serhan; Teaching Faculty; Faculty Member; Teaching Faculty; Faculty Member; School of Medicine; School of Medicine; School of Medicine; School of Medicine; N/A; 175565; 133565; 214690
    Benign lung tumors are very rare, endobronchial hamartomas -one of which- are even more rare. Endobronchial masses tend to represent themselves via obstruction related symptoms and endobronchial hamartomas are not an exception. It is important to diagnose endobronchial masses before they bring untreatable damage to the lung. It is also important to differentiate endobronchial hamartomas from endobronchial malignancies, such as carcinomas, for they also tend to act mildly symptomatic for a long period of time. In our case, the patient was admitted to our clinic with the symptoms of cough and mild hemoptysis. A computed chest tomography showed total bronchiectasis of right upper lobe along with an endobronchial mass in the right upper lobe bronchus. Bronchoscopic biopsy of the mass revealed no diagnosis. We performed a right upper lobectomy and the pathological examination resulted as endobronchial hamartoma. There are numerous cases about endobronchial hamartomas in the literature which represented with countless symptoms and diseases as persistent cough, recurrent pneumonia, local bronchiectasis and so forth. Our case of endobronchial hamartoma representing with total bronchiectasis of a whole lobe of the lung is the first and only case in the English literature to our knowledge.
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    Could fifty percent tumor viability be a good prognostic factor?
    (Elsevier Science Inc, 2022) Cesur, Ekin Ezgi; Özer, Kadir Burak; Mandel, Nil Molinas; N/A; Erus, Suat; Bulutay, Pınar; Selçukbiricik, Fatih; Tanju, Serhan; Fırat, Pınar Arıkan; Dilege, Şükrü; Faculty Member; Teaching Faculty; Faculty Member; Faculty Member; Faculty Member; Faculty Member; School of Medicine; School of Medicine; School of Medicine; School of Medicine; School of Medicine; School of Medicine; Koç University Hospital; 175565; 133565; 202015; 214690; 207545; 122573
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    Robotic segmentectomy: far beyond choice
    (Pioneer Bioscience Publ Co, 2017) N/A; N/A; Erus, Suat; Tanju, Serhan; Faculty Member; Faculty Member; School of Medicine; School of Medicine; Koç University Hospital; 175565; 214690
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