Okan Yıldız

ORCID: 0000-0002-6192-3111
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Research Areas
  • Congenital Heart Disease Studies
  • Cardiac Structural Anomalies and Repair
  • Mechanical Circulatory Support Devices
  • Congenital Diaphragmatic Hernia Studies
  • Coronary Artery Anomalies
  • Cardiac Arrest and Resuscitation
  • Tracheal and airway disorders
  • Aortic Disease and Treatment Approaches
  • Ultrasound in Clinical Applications
  • Cardiac Valve Diseases and Treatments
  • Cardiovascular Issues in Pregnancy
  • Pulmonary Hypertension Research and Treatments
  • Vascular anomalies and interventions
  • Acute Myocardial Infarction Research
  • Acute Kidney Injury Research
  • Cardiac Arrhythmias and Treatments
  • Nosocomial Infections in ICU
  • Cardiac pacing and defibrillation studies
  • Cardiac and Coronary Surgery Techniques
  • Cardiac, Anesthesia and Surgical Outcomes
  • Health Systems, Economic Evaluations, Quality of Life
  • Intensive Care Unit Cognitive Disorders
  • Trauma Management and Diagnosis
  • Infective Endocarditis Diagnosis and Management
  • Williams Syndrome Research

Burdur Mehmet Akif Ersoy Üniversitesi
2016-2025

Sağlık Bilimleri Üniversitesi
2017-2023

Istanbul Eye Hospital
2016-2023

University of Leeds
2022

İstanbul Başakşehir Çam ve Sakura Şehir Hastanesi
2022

British Heart Foundation
2022

Istanbul Metropolitan Municipality
2021

Dr. Siyami Ersek Göğüs Kalp Ve Damar Cerrahisi Eğitim Ve Araştırma Hastanesi
2018-2019

Abstract Objectives: The sutureless repair technique has been favoured due to its purported reduction in post-operative pulmonary venous obstruction rates. This study aims compare the outcomes of conventional versus techniques Total Anomalous Pulmonary Venous Drainage. Methods: In this retrospective single-centre analysis (2012–2022), we evaluated children who underwent or for isolated total anomalous drainage, excluding complex cardiac anomalies and incomplete data. Patients were...

10.1017/s1047951124036679 article EN Cardiology in the Young 2025-02-03

Vascular rings may cause pressure on the trachea and/or esophagus of varying degree, resulting in symptoms. This study assessed presentation symptoms, diagnostic methods and treatment results after surgery children with vascular ring.Symptomatic ring patients undergoing between January 2010 August 2014 at Mehmet Akif Ersoy Cardiovascular Research Training Hospital, Istanbul, were retrospectively assessed. The demographic characteristics, tests evaluated. Operative data postoperative follow...

10.1111/ped.13101 article EN Pediatrics International 2016-07-25

Extracorporeal membrane oxygenation (ECMO) is used to provide cardiorespiratory support during cardiopulmonary resuscitation (extracorporeal resuscitation; ECPR) unresponsive conventional methods. In this study, the results of ECPR in a cardiac arrest setting after surgery children were analyzed.In retrospective cohort between November 2010 and June 2014, 613 congenital heart operations performed by same surgical team. Medical records all patients who experienced an early postoperative...

10.14744/anatoljcardiol.2016.6658 article EN cc-by-nc The Anatolian Journal of Cardiology 2016-01-01

Objective: To reveal the risk factors that can lead to a complicated course and an increased morbidity in patients < 1 year old after surgical ventricular septal defect (VSD) closure.Methods: We reviewed consecutive series of who were admitted our institution for VSD closure under one age, between 2015 2018.Mechanical ventilation (MV) time > 24 hours, intensive care unit (ICU) stay longer than three days, hospital seven days defined as "prolonged".Unplanned reoperation, complete heart block...

10.21470/1678-9741-2018-0299 article EN cc-by Brazilian Journal of Cardiovascular Surgery 2019-01-01

Introduction: Extracorporeal membrane oxygenation (ECMO) has become a standard technique over the past few decades in intensive care unit (ICU).Objective: A review of pediatric patients who received ECMO support cardiac ICU was conducted to determine incidence, risk factors and causal organisms related acquired infections assess survival rates with nosocomial infections.Methods: Sixty-six between January 2011 June 2014 were included study.Demographic, echocardiographic, hemodynamic features...

10.21470/1678-9741-2017-0072 article EN cc-by Brazilian Journal of Cardiovascular Surgery 2017-01-01

Vacuum-assisted closure (VAC) has been widely used to treat mediastinitis after congenital cardiac surgery, which is associated with a high risk of morbidity and mortality. The aim in this study review our 14 cases treated VAC therapy surgery. We retrospectively reviewed the medical records heart patients from January 2012 March 2017. Patients fever, wound discharge, sternal dehiscence, positive culture or abscess diagnosed computed tomography are accepted as mediastinitis. A was applied all...

10.1111/aor.13321 article EN Artificial Organs 2018-10-03

PURPOSE This study was planned to assess the application of three-dimensional (3D) cardiac modeling in preoperative evaluation for complex congenital heart surgeries. METHODS From July 2015 September 2019, 18 children diagnosed with diseases (CHDs) were enrolled this (double outlet right ventricle nine patients, types transposition great arteries six congenitally corrected two and univentricular one patient). The patients' age ranged from 7 months 19 years (median age, 14 months). Before...

10.5152/dir.2021.20163 article EN Diagnostic and Interventional Radiology 2021-06-29

Aim: We aimed to investigate the risk factors affecting survival after extracorporeal membrane oxygenation use in pediatric postcardiotomy patients. Methods: One hundred thirty-three consecutive patients who underwent surgery for congenital heart disease needed support were retrospectively analyzed. Results: In all, 3,082 operated, of which 140 (4.54% total number operations) oxygenation. Eighty (60.1%) successfully weaned and 51 (38.3%) discharged. Of 50 discharged during mean follow-up...

10.1177/0267659119897746 article EN Perfusion 2020-01-23

Background: This study aims to evaluate the early extubation rate and factors affecting in pediatric patients undergoing cardiac surgery. Methods: Between August 1st, 2020 December 2021, a total of 528 (264 males, 264 females; median age: 4 months; range, 2 days 24 months) who were followed intensive care unit after congenital heart surgery retrospectively analyzed. Demographic clinical characteristics including operation data obtained from medical records. Patients included categorized into...

10.5606/tgkdc.dergisi.2023.23206 article EN Turkish Journal of Thoracic and Cardiovascular Surgery 2023-01-01

Abstract Extracorporeal life support (ECLS) provides mechanical following cardiac surgery when respiratory or failure occurs. The aim of this study was to analyze the safety and feasibility Medos Deltastream diagonal pump (DP3) ECLS system in pediatric patients. We described technical considerations risk factors related survival outcomes 102 patients who received between March 2011 April 2016. switched from DP2 system, which used for initial 25 patients, DP3 after November 2012. then a...

10.1111/aor.12977 article EN Artificial Organs 2017-08-01

This study aims to evaluate the surgical results of our clinic according presumption systems Risk Adjustment in Congenital Heart Surgery, Aristotle Basic Complexity score, Comprehensive and Society Thoracic Surgeons European Association for Cardiothoracic Surgery mortality categories compare efficiency these predicting morbidity mortality.In study, classification risk scoring were performed with four different 1,950 patients (1,038 males, 912 females; mean age 5.5 months; range, 1 day 18...

10.5606/tgkdc.dergisi.2018.15083 article EN Turkish Journal of Thoracic and Cardiovascular Surgery 2018-04-30

The number of diagnostic and interventional cardiac catheterization procedures are increasing in the post-operative period congenital heart diseases (CHD). aim this study was to evaluate data patients who underwent early after surgery (CHS).We retrospectively evaluated within 30 days CHS.Between 2010 2016 our hospital, 2584 children had operations, 2911 due CHD. Cardiac performed 50 (1.9% surgeries) these during period. Twenty-nine (58%) were males. median age 7.5 months (range: 15 days-12.5...

10.6515/acs.201811_34(6).20180524b article EN PubMed 2018-11-01

Arterial switch operation has become the treatment of choice for neonates with transposition great arteries. The most important step procedure is transferring coronary arteries to neoaorta successfully. This study shows impact anatomy on early mortality and morbidity after arterial operation.Ninety-two patients who underwent between October 2010 September 2014 were included in this retrospective study. classified into two groups: group I (n = 68, usual artery anatomy) II 24, unusual...

10.1111/chd.12295 article EN Congenital Heart Disease 2015-08-24

Abstract Objective Oxidative stress refers to an imbalance between reactive oxidative species and antioxidants. In this case-controlled, prospective, observational study, we investigated the total oxidant status, antioxidant index, albumin C-reactive protein levels of children with cyanotic acyanotic congenital heart diseases who had undergone on-pump cardiac surgery. Method The study groups consisted 60 patients disease, were operated under cardiopulmonary bypass, a control group 30 healthy...

10.1017/s1047951116000573 article EN Cardiology in the Young 2016-05-19

Amaç: Bu çalışmada Fallot tetralojisinin cerrahi onarımından sonra hastanede uzayan kalış süresini ve majör advers olayları etkileyen hasta faktörler değerlendirildi onarım sonrasında komplike seyrin öngördürücüleri

10.5606/tgkdc.dergisi.2020.18829 article TR Turkish Journal of Thoracic and Cardiovascular Surgery 2020-04-20

Extracorporeal membrane oxygenation (ECMO) is a lifesaving intervention for pediatric patients with respiratory and/or cardiovascular failure. In this study, we evaluated the cardiac catheterization results of on ECMO support.Between January 2012 and October 2016, 98 (5.2% all surgery patients) needed support during perioperative surgery. We retrospectively reviewed clinical data 16 who underwent under support.The median age at was 6.5 months (range, 3.3-60 months), weight 6.0 kg 3.7-16 )....

10.14744/anatoljcardiol.2017.7927 article EN cc-by-nc The Anatolian Journal of Cardiology 2017-01-01

Objectives: A new congenital heart surgery database (CKCV) with real-time online reporting function was recently developed in Turkey. All standard international parameters were used, but Aristotle Comprehensive Complexity score modified. In this study, the first analysis of CKCV Database is reported. Methods: The included 2307 procedures from 12 centers between January 2018 and March 2020. parameters, including 10 reports, which represent number centers, mortality rates all procedures,...

10.1177/2150135121995474 article EN World Journal for Pediatric and Congenital Heart Surgery 2021-05-01

Myocardial bridging (MB) is a rare coronary anomaly in children which typically associated with hypertrophic obstructive cardiomyopathy (HCM) or left ventricular hypertrophy. Hypertrophic the leading cause of sudden cardiac death young patients, and association myocardial ischemia has been recognized patients HCM. In this report, we describe an 11-year-old boy presented history exertional, nonspecific chest pain palpitations. Cardiac catheterization revealed MB anterior descending artery...

10.1177/2150135114536901 article EN World Journal for Pediatric and Congenital Heart Surgery 2014-10-01

Congenital supravalvar aortic stenosis (SVAS) is an arteriopathy associated with Williams-Beuren syndrome (WBS) and other isolated elastin gene deletions. Cardiovascular manifestations WBS are characterized by obstructive arterial lesions such as SVAS pulmonary artery in addition to bicuspid valve mitral prolapse. However, coronary ostial may be SVAS, it increases the risk of sudden death complicate surgical management. In this report, we present our experience two patients having left...

10.1177/2150135114563767 article EN World Journal for Pediatric and Congenital Heart Surgery 2015-04-01

10.5606/tgkdc.dergisi.2016.12757 article EN Turkish Journal of Thoracic and Cardiovascular Surgery 2016-07-19

This study aims to investigate the role of ultrasonography in postoperative evaluation diaphragm function patients with congenital heart defect.This prospective included a total 360 (176 males, 184 females; mean age 2 years; range, 1 month 8 years) who underwent surgery and 44 (22 22 4 between September 2018 March 2019. Ultrasonography was performed for had difficulty weaning from mechanical ventilation or were thought have dysfunction due pathological findings on chest X-rays. The...

10.5606/tgkdc.dergisi.2020.18458 article EN Turkish Journal of Thoracic and Cardiovascular Surgery 2020-02-17

OBJECTIVESTo investigate the effects of intravenous iloprost on pulmonary artery hypertension (PAH) in infants undergoing congenital heart surgery.

10.1093/icvts/ivv325 article EN Interactive Cardiovascular and Thoracic Surgery 2015-11-24

A 2.5-month-old female patient presented for closure of a ventricular septal defect (VSD). Transthoracic echocardiography showed large muscular defect. After perventricular the was performed with an Amplatzer VSD occluder, peroperative transesophageal revealed that device had been implanted in wrong area septum. The retrieved and mid-muscular extension to outlet septum closed patch Dacron which secured 5-0 sutures. perforation due attempted delivery seen, it repaired primarily. In eighth...

10.1177/2150135114541860 article EN World Journal for Pediatric and Congenital Heart Surgery 2014-10-01
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