Cemal Kocaaslan

Dr. Cemal Kocaaslan

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Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 December 2019 in The Journal of Vascular Access
Verified
Journal Article
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CKCemal Kocaaslan
Cemal Kocaaslan
AOAhmet Oztekin
Ahmet Oztekin
MBMehmet Senel Bademci
Mehmet Senel Bademci
EYEmine Seyma Denli Yalvac
Emine Seyma Denli Yalvac
NBNurgul Bulut
Nurgul Bulut
EAEbuzer Aydin
Ebuzer Aydin
Background: Juxta-anastomotic stenosis is a common issue of arteriovenous fistulas. We aimed to evaluate the results of percutaneous transluminal angioplasty with drug-coated balloon versus plain balloon for the treatment of juxta-anastomotic stenoses of mature but failing distal radiocephalic arteriovenous fistulas. Methods: A total of 80 patients with a juxta-anastomotic stenosis of distal radiocephalic arteriovenous fistula in our clinic between January 2016 and September 2017 were retrospectively analyzed. Patients were divided into two groups according to the type of treatment as drug-coated balloon – percutaneous transluminal angioplasty (n = 44) and plain balloon – percutaneous transluminal angioplasty (n = 43). Intra- and post-procedural data were recorded. Target lesion primary patency rate was evaluated at 6 and 12 months. Of all patients, 48 were females and 39 were males with a mean age of 56.3 ± 10.4 (range, 24–75) years. Both groups had mature fistulas, and the mean age of fistula was 11.3 ± 9.1 months in the drug-coated balloon – percutaneous transluminal angioplasty group and 10.3 ± 8.8 months in the plain balloon – percutaneous transluminal angioplasty group (p = 0.24). Results: There was no significant difference in the target lesion stenosis rate and the median lesion length between the groups. Technical and clinical success were achieved in both groups. Target lesion primary patency was similar at 6 months between the two groups (93.1% vs 81.3%, respectively; p = 0.14) but significantly higher for the drug-coated balloon – percutaneous transluminal angioplasty group at 12 months (81.8% vs 51.1%, respectively; p = 0.01). Conclusion: Our study results suggest that the use of drug-coated balloon combined with percutaneous transluminal angioplasty is an effective treatment for juxta-anastomotic stenoses of mature but failing distal radiocephalic arteriovenous fistulas with significantly improved target lesion primary patency rates and reduced need for juxta-anastomotic reinterventions.

28 February 2018 in Vascular
Verified
Journal Article
Closed access
CKCemal Kocaaslan
Cemal Kocaaslan
TKTamer Kehlibar
Tamer Kehlibar
MYMehmet Yilmaz
Mehmet Yilmaz
MMMehmet E Mehmetoglu
Mehmet E Mehmetoglu
RGRafet Gunay
Rafet Gunay
MDMahmut M Demirtas
Mahmut M Demirtas
Introduction: Guidelines have been recommending the use of arteriovenous fistula among the hemodialysis population, but no clear conclusion has emerged with regard to the adequate access type in octogenarians. In this paper, the outcomes of arteriovenous fistula in octogenarian cohort were presented for death-censored cumulative patency rate, complications, and patients’ survival rate. Methods: A retrospective review of 88 consecutive arteriovenous fistula interventions in 70 octogenarian patients were performed at one referral institution between January 2010 and June 2014. The patients’ records were analyzed and postoperative complications were documented. Death-censored cumulative arteriovenous fistula patency rates were calculated, and Kaplan–Meier method was used to analyze patient survival for 24 months. Findings: Eighty-eight arteriovenous fistula constructions and six salvage procedures were performed in 70 octogenarians. Fifty-four (61.3%) forearm and 34 (38.7%) upper arm fistulas were created. All types of fistulas had 6-, 12-, 18-, and 24-month death-censored cumulative patency rates of 63.6%, 58.3%, 48.8%, and 41.4%, respectively. The primary failure rate was 40.9%. A total of 15 complications were documented as edema, hematoma/bleeding, infection, distal ischemia, and venous aneurysm, all of which had been treated. Patient survival rates for 12 and 24 months were 68.5% and 58.5%, respectively. Discussion and conclusion: This analysis regarding arteriovenous fistula in octogenarian end-stage renal disease patients figured out equal death-censored cumulative patency compared to nonelderly, and two-year survival rate was acceptable. This study strengthens the argument that arteriovenous fistula should be the best proper choice in selected octogenarians; older age only should not be considered as an absolute contraindication for arteriovenous fistula creation in octogenarians; and patient-based approach should be applied.

15 January 2018 in Turkish Journal of Gastroenterology
Verified
Journal Article
Closed access
EYEmine Şeyma Denli Yalvaç
Emine Şeyma Denli Yalvaç
MAMustafa Aldağ
Mustafa Aldağ
CKCemal Kocaaslan
Cemal Kocaaslan
EŞEbubekir Şenateş
Ebubekir Şenateş
EAEbuzer Aydın
Ebuzer Aydın
Acute pancreatitis (AP) is a common disorder and an important cause of morbidity and mortality. There are different causes of AP, including gallstones and excessive alcohol consumption. AP after coronary artery bypass grafting (CABG) surgery is seen less frequently but it is associated with a high mortality rate due to its atypical and misleading symptoms. Supportive treatment, pain management, and treatment of complications are used in the treatment of AP. The treatment of hypertriglyceridemia-induced pancreatitis is plasmapheresis, which is an extracorporeal separation of blood components to assist in the removal of inflammatory mediators. Here we present the case of a 60-year-old male patient who developed severe AP (Ranson Score: 6) without hypertriglyceridemia after CABG. The patient received supportive treatment, but the response to conventional therapy was not predictable. Thus, plasmapheresis was started, and the patient was treated with plasmapheresis successfully. The use of plasmapheresis in patients with this condition is a new treatment modality as far as we know. This case illustrates the efficient and safe use of the plasmapheresis treatment modality in a patient with AP without hypertriglyceridemia. Cite this article as: Denli Yalvaç EŞ, Aldağ M, Kocaaslan C, Şenateş E, Aydın E. Acute pancreatitis after coronary artery bypass surgery treated by plasmapheresis. Turk J Gastroenterol 2018; 29: 101-3.

20 February 2020 in Vascular
Verified
Journal Article
Closed access
PDF file
BKBetul Nur Keser
Betul Nur Keser
UKUlku Nur Kirman
Ulku Nur Kirman
CKCemal Kocaaslan
Cemal Kocaaslan
EAEbuzer Aydin
Ebuzer Aydin
A well-functioning vascular access is crucial for hemodialysis treatment, and arteriovenous fistula is the recommended vascular access type. Arteriovenous fistula is superior to other vascular access types in many aspects, but the effect of arteriovenous fistula on patients’ psychiatric state is not well described yet. The aim of this study is to determine whether there is an association between vascular access type and depression scores. This cross-sectional study was conducted at two hemodialysis centers. Geriatric Depression Scale-15 was administered to geriatric hemodialysis patients, using ≥5 score as the cut-off value for the presence of depressive symptoms. Descriptive tests, Kolmogorov–Smirnov test, Pearson’s Chi-square test, Mann–Whitney test, Kruskal–Wallis test, Spearman’s rank correlation calculation, and multiple logistic regression analysis were performed accordingly to analyze the data. Of 75 participants, 34 (45.3%) were female and the mean age was 73.4 ± 5.9 years (range: 65–92). The prevalence of depressive symptoms in the geriatric hemodialysis population was 53.3%. Central venous catheter, hypertension, and increased time on hemodialysis have been found to be risk factors for higher depression scores (aOR 10.505 (95% CI 1.435–76.900), p = 0.021; aOR 9.783 (95% CI 2.508–38.169), p = 0.001; aOR 1.019 (95% CI 1.003–1.035), p = 0.017, respectively). Among patients with arteriovenous fistula, those with hypertension had higher depression scores (p = 0.008). Geriatric hemodialysis patients were found to have depressive symptoms commonly, and central venous catheter, hypertension, and increased time on hemodialysis have been found to be risk factors for presence of depressive symptoms. To the best of our knowledge, this is the first study highlighting that arteriovenous fistula is associated with lower depression scores and lower prevalence of depressive symptoms.

1 January 2017 in Northern Clinics of Istanbul
Verified
Journal Article
Open access
CKCemal Kocaaslan
Cemal Kocaaslan
MAMustafa Aldag
Mustafa Aldag
TKTamer Kehlibar
Tamer Kehlibar
MYMehmet Yilmaz
Mehmet Yilmaz
EAEbuzer Aydin
Ebuzer Aydin
BKBulend Ketenci
Bulend Ketenci
Endovascular aneurysm repair (EVAR) has been widely accepted as a safe and effective treatment for abdominal aortic aneurysm. Endoleaks are the most common complication after EVAR and require urgent interventions. Usually endoleaks can be treated with endovascular procedures using a variety of techniques. Despite these interventions, if the endoleak still persists, conventional open surgery should be evaluated. A 67-year-old man had been treated with EVAR after a ruptured abdominal aortic aneurysm 7 years ago. Later on, a type II endoleak was detected due to the inferior mesenteric artery and treated with coil embolization at the first follow-up year. The patient was admitted to our emergency department due to abdominal pain. Computed tomography angiography demonstrated a type Ia endoleak from the posterior side of the graft with a huge abdominal aortic aneurysm sac (22.9 cm) without rupture. The patient was hemodynamically unstable, and open surgical repair was performed via left anterolateral thoracotomy and laparotomy. Here we report a case where we performed open repair of a type Ia endoleak and discuss the repairing techniques for type Ia endoleak in the light of the literature.

1 July 2018 in Journal of Cardiac Surgery
Verified
Journal Article
Closed access
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EAEbuzer Aydin
Ebuzer Aydin
OKOsman Köse
Osman Köse
CKCemal Kocaaslan
Cemal Kocaaslan
MAMustafa Aldağ
Mustafa Aldağ
MBMehmet Ş. Bademci
Mehmet Ş. Bademci