Publications by authors named "Gokhan Ozkan"

Background: Lower-extremity amputation for a diabetic foot is mainly performed under general or central neuraxial anesthesia. Ultrasound-guided peripheral nerve block (PNB) can be a good alternative, especially for patients who require continuous anticoagulation treatment and patients with additional comorbidities. We evaluated bleeding due to PNB application in patients with diabetic foot receiving antiplatelet or anticoagulant therapy.

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Cluster headache is a rare, severe headache associated with hypothalamic dysfunction or sleep cycles. It is classified in the primary headache group in The International Classification of Headache Disorders-3-2018 (ICHD-3-2018). In this case report, we present a 62-year-old male patient whose cluster headache showed a five times longer remission interval after dental implant treatment and ceased for more than two years following cardiac stent therapy.

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Purpose: The purpose of the study was to investigate the mandible shape dimorphism between males and females both on conventional panoramic radiographs (cPR) and reconstructed panoramic radiographs obtained from cone beam computed tomography (rPR) with geometric morphometric method.

Methods: Panoramic radiographs and cone beam computed tomography scans were performed on 33 males and 35 females with median age 23.0 (13.

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Background: To translate and validate the psychometric characteristics of a Turkish version of the Obstetric Quality-of-Recovery score 11 tool used to measure post-cesarean delivery recovery in Turkish-speaking patients.

Methods: After the original English version of the Obstetric Quality-of-Recovery score 11 tool was translated into Turkish; it was psychometrically validated to assess the post-cesarean delivery quality of recovery. Validity, reliability, and feasibility were investigated.

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Objective: The aim of this study is to present a comparison between panoramic radiographs and USG imaging with a focus on revealing the advantages of USG over radiographs, and to show the distribution of calcifications detected in USG by considering the age and gender.

Methods: A total of 148 patients with soft tissue calcifications as seen on panoramic radiographs were examined with USG imaging. Sialoliths, carotid artery calcifications, tonsilloliths, phleboliths and lymph node calcifications were examined in terms of anatomical localization, distribution and shape.

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Background: The quality of recovery-15 (QoR-15) is a patient reported outcome questionnaire that measures the quality of recovery after surgery and anesthesia. The QoR-15 has been validated in many languages; Turkish version of the QoR-15 has not yet been established. The aims of this study were to translate the QoR-15 questionnaire into Turkish and to perform a full psychometric evaluation of the Turkish version.

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Background: Early prediction of return of spontaneous circulation (ROSC) for cardiac arrest (CA) patients is a major challenge. Different biomarkers have been studied as an early predictor for ROSC, but a consensus has not been achieved in this regard. This study's goal was to investigate the value of the carboxyhaemoglobin (COHb) and methaemoglobin (MetHb) levels as a predictive marker for ROSC and prognostic marker for patients who achieve ROSC.

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Objectives: To compare the efficacies of various chest compression procedures performed on a stretcher during dynamic transport of patients with in-hospital cardiac arrest. Methods: This prospective and randomized cross-over study used manikins. Practitioners were asked to perform chest compressions on a manikin placed on a moving stretcher for 2 minutes.

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Resilience is a complex system that represents dynamic behaviours through its complicated structure with various nodes, interrelations, and information flows. Like other international organizations NATO has also been dealing with the measurement of this complex phenomenon in order to have a comprehensive understanding of the civil environment and its impact on military operations. With this ultimate purpose, NATO had developed and executed a prototype model with the system dynamics modelling and simulation paradigm.

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Aim: The aim of this study was to present our experiences for anesthesia management in patients undergoing robot-assisted radical prostatectomy (RARP) in light of current literature data.

Material And Methods: This clinical retrospective study included 103 patients who underwent robot-assisted radical prostatectomy. All patient data were obtained from the patient files and anesthesia follow-up forms.

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Background And Aim: In oncology patients, central venous port catheter (CVPC) implantation is generally preferred for venous route. However, in this procedure, postoperative pain is often observed. This study aimed to investigate the effectiveness of ultrasound-guided Pecs II block in the management of pain after CVPC placement.

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Spontaneous bleeding is rare in patients with factor XI deficiency and significant bleeding usually occurs after a trauma or a surgical procedure. It is difficult to maintain hemostatic balance in these patients. In the present case report, a 68-year-old male patient with no chronic disease was scheduled for elective cardiopulmonary bypass surgery.

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Background: The clinical use of port catheters has become widespread because they provide a safe and easy vascular route. Such widespread use of vascular port catheters has revealed early and late complications.

Aim: This study was evaluated the early and late noninfectious complications and present precautions and pitfalls to handle these complications.

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Background: The present study evaluates the success and efficacy of endotracheal intubation (ETI) using a modified intubation stylet and a magnet system to direct the stylet into the trachea. The system was developed by the researchers in an attempt to increase the success and efficacy of ETI.

Methods: ETI procedures were performed on an airway management manikin by emergency medical technicians with at least four years of experience in ETI.

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Serratus anterior plane block has been used for pain management during the acute period of conditions affecting the thorax, such as postthoracotomy recovery, rib fracture, and breast surgery recovery. Here, we report the use of serratus anterior plane block in posttraumatic chronic pain treatment. We describe a case of posttraumatic chronic intercostal neuralgia, in which successful pain relief was achieved via repeated injections of local anesthetic and steroid combinations in the serratus anterior plane under ultrasonographic guidance.

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The aim of this study was to compare the efficacy of HyFlex EDM (Coltene/Whaledent, Altstätten, Switzerland) and ProTaper Universal Retreatment Nickel-Titanium (NiTi) Systems [The ProTaper Universal Retreatment (PTR), Dentsply Maillefer, Ballaigues, Switzerland] in the removal of the root canal filling materials with or without laser activated irrigation. The root canals of 60 human mandibular premolars were instrumented with K files up to size 35 at a working length; the step-back procedure was performed in 1 mm increments up to size 50. Next, the teeth were obturated using the lateral compaction technique with gutta-percha and resin-based sealer, and they were randomly divided into two groups ( = 30) according to the retreatment systems: PTR and HyFlex EDM NiTi rotary files.

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Evaluation of the radiographic visibility of root pulp in mandibular third molars has been suggested as an alternative method for estimation of legal age threshold in living individuals when the root apices are mature. Here, we assessed the accuracy of this method for age thresholds of 18 and 21 years. A sample of 463 panoramic radiographs of individuals aged between 16 and 34 years was examined.

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The objective of this clinical study was to compare conventional caries detection techniques, pen-type laser fluorescence device, and near-infrared light transillumination method in approximal dentin caries lesions. The study included 157 patients, aged 12-18, without any cavity in the posterior teeth. Two calibrated examiners carried out the assessments of selected approximal caries sites independently.

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Purpose: This study aimed to compare the diagnostic efficacies of periapical radiographs (PRs) and cone-beam computed tomography (CBCT) scans on clinicians' decision-making in diagnosing and providing treatment of fractured instruments in root canals during glide path preparation.

Methods: 40 maxillary molar teeth were selected and randomly divided into 4 groups. In each experimental group (n = 10), Hedstroem stainless steel instruments were fractured in mesiobuccal (MB) or distobuccal (DB) root canals.

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Purpose: The purpose of this study was to figure out the characteristics and occurrence of talon cusps in a sample of Turkish population.

Methods: In this retrospective study, talon cusps in permanent dentition were evaluated on radiographs and intraoral photographs which were obtained from patients who were referred to Oral and Maxillofacial Radiology Department, Faculty of Dentistry, Adnan Menderes University, Aydın, Turkey between January 2013 and January 2014.

Results: Talon cusps were observed in 365 of 4116 patients, with a frequency of 8.

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Conventional methods of caries detection, including the gold standard of histological examination, have certain disadvantages that must be addressed prior to validating any other diagnostic technique-current or new. Here we evaluated the validity of micro-computed tomography (micro-CT) as an alternative gold-standard technique for caries detection. Sixty teeth with suspected occlusal caries were chosen from a pool of teeth extracted for orthodontic, periodontal, or surgical reasons.

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BACKGROUND Angiogenesis is the formation of new blood vessels from pre-existing vasculature. Many factors and substances may stimulate angiogenesis and exhibit proliferative effect. In this study, we aimed to investigate the angiogenic and proliferative effects of sodium nitrite.

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Background: Several methods are available to evaluate the performance of the tests when the purpose of the diagnostic test is to discriminate between two possible disease states. However multi-class diagnostic problems frequently appear in many areas of medical science. Hence, there is a need for methods which will enable us to characterize the accuracy of diagnostic tests when there are more than two possible disease states.

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Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease that leads to fixed narrowing of small airways and alveolar wall destruction (emphysema). This study was performed to test the association between MMP-7 (rs155668818) and MMP-12 (rs56184183) polymorphisms in the MMP-7 gene and COPD risk and its severity in the Turkish population. MMP-7 and MMP-12 polymorphisms were genotyped in 85 patients with COPD and 73 healthy control subjects using real-time polymerase chain reaction analysis.

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