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Dive into the research topics where Hasan Akin is active.

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Featured researches published by Hasan Akin.


Asian Cardiovascular and Thoracic Annals | 2006

Role and outcome of surgery for pulmonary tuberculosis.

Aysun Olcmen; Mehmet Zeki Gunluoglu; Adalet Demir; Hasan Akin; Hasan Volkan Kara; Seyyit Ibrahim Dincer

The need and outcome of surgical intervention in patients with pulmonary tuberculosis were assessed retrospectively. Between 1993 and 2003, 72 major surgical procedures were performed in 57 patients with pulmonary tuberculosis. There were 44 males and 13 females with a mean age of 34 years. Indications for surgery were: trapped lung in 18 (31.6%), multidrug-resistant tuberculosis in 10 (17.5%), aspergilloma in 10 (17.5%), destroyed lung in 5 (8.8%), massive hemoptysis in 4 (7%), bronchopleural fistula in 3 (5.3%), persistent cavity in 2 (3.5%), and undiagnosed nodule in 5 (8.8%) patients. The most common procedure was lobectomy (31.9%). Other procedures included decortication, wedge resection, pneumonectomy, segmentectomy, and myoplasty. There were 28 complications in 18 patients, including prolonged air leak in 12 (21.1%), residual space in 7 (12.3%), empyema in 5 (8.8%), hematoma in 2 (3.5%), chylothorax and bronchopleural fistula in 1 (1.8%) each. There was no operative death, but one patient died from sepsis late in the follow-up period (mortality, 1.8%). As morbidity and mortality rates are acceptable, surgical intervention can be considered safe and effective in patients with pulmonary tuberculosis.


Thoracic and Cardiovascular Surgeon | 2012

Approach to patients with chylothorax complicating pulmonary resection.

Hasan Akin; Olcmen A; Isgorucu O; Denizkiran I; Dincer I

Mediastinal lymph node dissection, an important part of surgery for non-small cell lung cancer, is associated with a risk of chylothorax. Although mortality has significantly decreased in recent years, it still worries thoracic surgeons. In this report we reviewed our experience on chylothorax with 26 cases and assessed the outcomes after conservative and surgical approaches. Between January 2000 and June 2010, twenty-six patients developed chylothorax after pulmonary resection performed for non-small cell lung cancer. Initially, all cases were treated conservatively with cessation of oral intake and the application of talc poudrage. If the conservative method failed, a surgical approach was used, which consisted either of suturing the leak or of mass ligation. The mean age of patients was 56 ± 9.05 years, and 3 were female. Chylothorax was more common on the right side, in lobectomy cases, in cases with adenocarcinoma, and in patients with advanced stage lung cancer, but the difference did not reach statistical significance. Conservative treatment was successful in 19 of 26 (73 %) patients, four of whom had undergone pneumonectomy. Seven out of 26 cases (27%) required thoracotomy to control the chylous leak. Though thoracotomy was required mostly for the right side (6 right vs. 1 left, p = 0.15), and in patients who had had pneumonectomy as their first operation (4 patients vs. 3, p = 0.18), this did not reach statistical significance. No patient died as a result of surgical intervention. In conclusion, chylothorax is not rare after pulmonary resection performed for lung cancer. But it is not as dangerous as it used to be. Talc pleurodesis has increased the success of conservative management and minimized the need for surgical intervention. In cases of high output leak the surgeon should not hesitate to perform surgery. VATS can be performed instead of open surgery in suitable cases.


Journal of Thoracic Disease | 2013

Which type of surgery should become the preferred procedure for malignant pleural mesothelioma: extrapleural pneumonectomy or extended pleurectomy?

Mehmet Ali Bedirhan; Levent Cansever; Adalet Demir; Süleyman Ceyhan; Hasan Akin; Halide Nur Ürer; Aysun Olcmen; Celalettin Kocatürk; Ibrahim Dincer

PURPOSES Since radiation and chemotherapy have limitations as therapies for malignant pleural mesothelioma (MPM). The type of surgery [extrapleural pneumonectomy (EPP), extended pleurectomy (E/P), and pleurectomy/decortication (P/D)] remains controversial. METHODS This study involves 76 consecutive patients. 58 of the cases were males (76%) with a median age of 53.17±10.93 years. EPP, E/P, and P/D were performed in 31, 20, and 25 cases, respectively. RESULTS The median survival time was 20 months in all patients. Overall, five-year survival rate was 14.3%. The survival rate was significantly better in epithelioid mesothelioma (P=0.049). For EPP cases, the median survival rate was 17 months, and the three-to-five year survival rates were 21% and 17%, respectively. For E/P cases, the median survival rate was 27 months and the three-year and four-year survival rates were 34% and 30%, respectively. For P/D cases, the median survival rate was 15 months and the three-to-five year survival rate was 13% and 0%. There were no statistically significant differences between the three surgical techniques (P=0.088). A comparative analysis indicates only a statistically significant difference in the E/P and P/D comparison (P=0.032). Hospital mortality showed a higher trend in EPP group (EPP: 12.9%, E/P: 0% and P/D: 4%, P=0.145). N2 cases, there were no cases of two-year survival. The survival rate in N2 was comparatively much lower, which was statistically significant (P=0.005). In multivariate analysis, only P/D (OR 0.3, 95% CI: 0.1-0.9, P=0.049) and N2 (OR 1.6, 95% CI: 0.9-2.6, P=0.090) were found to be poor prognostic factors. CONCLUSIONS E/P could be encouraged to EPP with lower mortality rate and better survival trend in MPM. N2 diseases were negative prognostic factors in MPM.


Thoracic and Cardiovascular Surgeon | 2008

Mediastinal Ectopic Parathyroid Adenoma: Report of Two Cases Successfully Treated by VATS Approach

Hasan Akin; Z. Gunluoglu; V. Kara; Huseyin Melek; I. Dincer

Ectopic parathyroid adenomas are the cause of approximately one in four cases of primary hyperparathyroidism (pHPT). Most ectopic parathyroid adenomas are located adjacent to the upper thymus gland and can be resected with a collar incision. In rare cases, however, adenomas located in the chest require a transsternalor transthoracic approach. Due to the high rate of morbidity with a sternotomy or thoracotomy, minimally invasive methods such as video-assisted thoracoscopic surgery (VATS) or video-assisted mediastinoscopic surgery (VAMS) are becoming increasingly popular. We present two cases with primary hyperparathyroidism due to mediastinal ectopic parathyroid adenoma that were successfully treated by VATS approach.


Thoracic and Cardiovascular Surgeon | 2018

Which is the Best Minimal Invasive Approach for the Treatment of Spontaneous Pneumothorax? Uniport, Two, or Three Ports: A Prospective Randomized Trail

Ali Cevat Kutluk; Celalettin Kocatürk; Hasan Akin; Sertan Erdogan; Salih Bilen; Kemal Karapınar; Celal Buğra Sezen; Özkan Saydam

Objective Video‐assisted thoracoscopic surgery (VATS) has become the standard treatment method for primary spontaneous pneumothorax. Concerns about lesser pain and better cosmesis led to the evolution of uniportal access. This study prospectively compared the results of the uniportal, two‐port, and three‐port thoracoscopic surgery. Material and Methods One hundred and thirty‐five patients were randomized into three groups according to the port numbers. The groups were compared regarding the operation time, hospital stay, amount of drainage, area of pleurectomy, complications, recurrences, and pain scores. Results Except for the amount of drainage (p = 0.03), no factors were found to be statistically significant. The overall recurrence rate was 5%. Although the first and second week pain scores were not statistically significant, the single‐incision group patients had significantly less pain at 4, 24, and 72 hours (p < 0.05). Conclusion The study indicated that uniportal VATS approach is less painful and has better cosmetic results, besides it is as efficient as two‐ or three‐port VATS approach.


Thoracic and Cardiovascular Surgeon | 2018

Is Right Sleeve Lower Lobectomy Necessary? Is It Safe?

Celalettin Kocatürk; Özkan Saydam; Celal Buğra Sezen; Cem Emrah Kalafat; Levent Cansever; Ali Cevat Kutluk; Hasan Akin; Muzaffer Metin

OBJECTIVES  The right sleeve lower lobectomy is the least used of the bronchial sleeve operations. There are only case-based studies in the literature. In this study, we compared this technique to those used in patients who underwent a right lower bilobectomy. METHODS  We retrospectively reviewed the data of patients who had been operated on due to non-small cell lung cancer (NSCLC) from January 2005 to December 2015 from a dataset that was formed prospectively. Of the 4,166 patients who underwent resections due to NSCLC, the files of those who had a right sleeve lower lobectomy (group S) and those who had a right lower bilobectomy (group B) were evaluated. The remaining 25 patients in group B and 18 patients in group S were compared in terms of demographic data, morbidity, hospitalization time, mortality, histopathology, recurrence, and total survival. RESULTS  No significant differences in the demographic or clinical characteristics were observed between the two groups, except that group S had more female patients. Postoperative complications developed in 52% of the patients in group B and 11.1% of the patients in group S (p = 0.006). Mean hospitalization time was 9.6 ± 3.6 (range, 6-19) days in group B and 6.72 ± 1.5 (range, 4-9) days in group S (p = 0.001). All patients received complete resections. The mean patient follow-up time was 42.9 months. No significant difference was found between local and distant recurrences (p = 1, p = 0.432). Mean survival time was 89.6 months (5-year rate = 73%), which was 90.6 months (5-year rate = 75.3%) in group B and 63.1 months (5-year rate = 69.3%) in group S (p = 0.82). CONCLUSION  This technique allows for reduced filling of the thoracic cavity by a prolonged air leak and a reduced prevalence of complications. Additionally, the hospitalization time is shortened. It does not produce any additional mortality burden, and total survival and oncological outcomes are reliable. This technique can be used in selected patients at experienced centers.


Current Thoracic Surgery | 2016

Pulmonary sequestration: is it fraught to operate without the diagnosis?

A. Cevat Kutluk; Celalettin Kocatürk; Hasan Akin; M. Ali Bedirhan; Altan Ceritoğlu; Merve Hatipoğlu; Kemal Karapınar; Özkan Saydam

Background: Pulmonary sequestration is defined as nonfunctional lung tissue without a normal tracheobronchial tree that is supplied by an aberrant systemic artery. The awareness of the preoperative diagnosis could be very crucial for the safety of the operation. Materials and Methods: We retrospectively reviewed the records of 16 patients who underwent resection for pulmonary sequestration between 2006-2016. Nine of 16 cases (56%) were female, and the mean age of the patients was 38.5 ± 9.9 years. Fiberoptic bronchoscopy and standard computed thorax tomography were performed for diagnostic work-up in all cases. The patients were divided into 2 groups based on the presence (Group A) or abscence (Group B) of the preoperative diagnosis. Results: The most common presenting symptoms were cough and expectoration. Preoperative diagnosis of the sequestration was obtained in only 5 patients (31%). Bronchiectasis was the most common cause of false diagnosis, followed by hydatid disease, malignancy, and aspergillosis. Left-sided and intrapulmonary locations were dominant with 12 (75%) and 13 (81%) cases, respectively. Lobectomy was the most common type of surgical resection (75%) and thoracic aorta was the source of aberrant artery in 87% of the patients. Patients in group A were younger. Though intralobar and extralobar types were equally distributed in both groups, all cases in group B had intralobar type. The mean operation time, blood loss, the amount of drainage, and the hospital stay were all insignificantly longer in group B patients. Five of the 6 morbidities occured in group B patients, but the difference was not statistically significant. No mortality occured. Conclusions: Surgical resection provides definitive management, and is usually reserved for the patients with symptoms. Facilities for a definitive diagnosis should be performed in every case, because, although insignificant, the rate of morbidity is higher in the patients without a definitive diagnosis. Further studies concerning of more patients are required to obtain more comprehensive results.


Indian Journal of Thoracic and Cardiovascular Surgery | 2013

Malignant primary pulmonary melanoma with seeding metastasis

Aysun Olcmen; Hasan Akin; Sinem Nedime Sökücü; Nur Ürer

Primary malignant melanoma of the lung is an uncommon neoplasm that may be confused with more conventional types of lung cancer. We report a case of primary malignant melanoma of the lung in a 53-year-old man presenting with hemoptysis. Clinical and pathological review confirmed primary malignant melanoma of the lung. Tumor seeding was occurred as a complication of needle-track implantation. Relevant clinical and histopathological features and the criteria for diagnosis are reviewed.


European Journal of Cardio-Thoracic Surgery | 2008

Role of positron emission tomography in mediastinal lymphatic staging of non-small cell lung cancer §

Huseyin Melek; Mehmet Zeki Gunluoglu; Adalet Demir; Hasan Akin; Aysun Olcmen; Seyyit Ibrahim Dincer


Thoracic and Cardiovascular Surgeon | 2003

Chylothorax: a complication following lung resection in patients with NSCLC - chylothorax following lung resection.

Kutlu Ca; Adnan Sayar; Olgac G; Hasan Akin; Olcmen A; Mehmet Ali Bedirhan; Atilla Gürses

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Özkan Saydam

Zonguldak Karaelmas University

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Atilla Gürses

Boston Children's Hospital

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