Publications by authors named "Utku Alkara"

Background: In countries with low rates of deceased donor solid organ transplantations, live-donor liver transplantation is the preferred definitive treatment for children and adults with end-stage liver disease. However, it is known that a remarkable number of potential living liver donors are rejected due to ABO incompatibility, suboptimal liver mass, or anatomical features. Paired exchange liver transplantation (PELT) practice emerged to overcome these obstacles.

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Article Synopsis
  • Intraoperative blood transfusion (IOBT) during living donor liver transplantation (LDLT) is linked with negative outcomes, but many procedures may not actually require it.
  • A study analyzed data from 219 adult LDLT patients, comparing those who received IOBT to those who didn't, focusing on various pre- and intraoperative factors that predict the need for transfusion.
  • Results showed significant predictors for avoiding IOBT included higher preoperative hemoglobin, fibrinogen, and albumin levels, leading to a 100% one-year survival rate for the No-IOBT group versus 83% for the IOBT group.
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: To evaluate the effects of the pulse index continuous cardiac output and MostCare Pressure Recording Analytical Method hemodynamic monitoring systems on short-term graft and patient outcomes during living donor liver transplantation in adult patients. : Overall, 163 adult patients who underwent living donor liver transplantation between January 2018 and March 2022 and met the study inclusion criteria were divided into two groups based on the hemodynamic monitoring systems used during surgery: the MostCare Pressure Recording Analytical Method group ( = 73) and the pulse index continuous cardiac output group ( = 90). The groups were compared with respect to preoperative clinicodemographic features (age, sex, body mass index, graft-to-recipient weight ratio, and Model for End-stage Liver Disease score), intraoperative clinical characteristics, and postoperative biochemical parameters (aspartate aminotransferase, alanine aminotransferase, total bilirubin, direct bilirubin, prothrombin time, international normalized ratio, and platelet count).

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Objectives: In this study, we aimed to investigate the surgical technique and biochemical parameters that affect biliary complications in liver transplants from live and cadaver in our center.

Methods: In this study, 141 patients who underwent liver transplants at Istanbul Yeni Yüzyıl Universty Gaziosmanpaşa Hospital organ transplant center between January 2018 and January 2020 were included in the study. The patients were monitored for 12-24 months.

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AL type amyloidosis is a systemic disease characterized by the accumulation of amyloid fibrils that can affect many organs such as the skin, gastrointestinal tract, heart, lungs, liver, and kidney. The most frequently involved organ in amyloidosis is the kidney, but cardiac amyloidosis with the poor prognosis is amyloid organ involvement. In this study, we present the treatment of a 40-year-old female patient with acute Budd-Chiari syndrome and very severe proteinuria with sequential liver, kidney, and autologous stem cell transplant after the diagnosis of systemic amyloidosis.

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Background: The reconstruction of the hepatic artery (HA) is the most complex step in living-donor liver transplantation (LDLT) owing to the artery's smaller diameter and the increased risk for HA-related complications. In this study, we presented our HA anastomosis technique for LDLT, which employed interrupted sutures using magnifying loupes.

Materials And Methods: Since January 2019, we retrospectively analyzed 179 LDLTs that were performed at our center.

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The purpose of this study is to evaluate the radiation dose, image quality, and diagnostic accuracy of prospective ECG-gated cardiac CT at 70 kV and adaptive statistical iterative reconstruction (ASIR), with a single source, 512 slice MDCT in the diagnosis of complex congenital heart disease in infants. We retrospectively evaluated 47 infants (ages 1 day to 353 days) with prospective ECG-gated cardiac CT that was performed on a single source 512 slice CT at low tube voltage (70 kV) using a wide detector aperture, adaptive statistical iterative reconstruction algorithm (ASIR), and specific reconstruction software reducing coronary motion artifacts (SnapShot Freeze). All cardiac images were obtained during the first pass of contrast material through the anatomic structures of interest and the targets for the center of the acquisition window were set 45% of the R-R interval during one cardiac cycle without sedation and breath-hold.

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Background: In this study, we present the results of two patients with vascular graft migration to the duodenum after liver transplantation.

Methods: The results of two patients who underwent living donor liver transplantation and vascular graft to the duodenum were evaluated.

Results: In our center, 201 liver transplants were performed, including 154 a right lobe living donor liver transplant.

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Fistulous communications between the ventricular cavities and the coronary arterial tree can be found in the presence of hypoplasia of the left ventricle, especially when the ventricular septum is intact and mitral stenosis and aortic atresia subtype are present. The cardiac CT provides excellent anatomic information especially in the evaluation of extracardiac vessels and coronary arteries. In this case study, we report a newborn with ventriculocoronary fistulas (VCFs) with the hypoplastic left disease diagnosed with cardiac CT.

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Introduction: Despite recent advances, lymphoceles are the most frequent complications following renal transplantation (RT), with an incidence of 0.6% to 51%. In this study, we present risk factors, treatments, and outcomes for lymphoceles after RT at our center.

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Background: Urological complications after renal transplantation (RT), including urine leaks, remain the most common type of surgical complications in the early post-transplant period. In this study we evaluated 324 consecutive RTs recipients in whom Haberal's corner-saving anastomosis technique was used for ureteroneocystostomy.

Material And Methods: Since January 2018, 461 RTs were performed at our center.

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Objective: To present details of 2 living-related donors and our fusion division technique, where half of the horseshoe kidney (HSK) was retrieved and transplanted.

Methods: Since January 2018, 461 renal transplantations have been performed at our center. In 2 of these 461 renal transplantations, which were analyzed retrospectively, a living donor, who had HSK, was used.

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Isolated partial anomalous pulmonary venous connection (PAPVC) of the entire left lung is a rare congenital anomaly with incidental diagnosis and vague symptoms, if any, until late adulthood. If left untreated, PAPVC may result in severe right ventricular failure and pulmonary vascular disease. We present the case of a 34-year-old woman with isolated PAPVC of the entire left lung.

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