Publications by authors named "Izzet Titiz"

One of the main issues in kidney transplantation is the optimal functional preservation of the organ until its transplantation into the appropriate recipient. Despite intensive efforts, the functional preservation period remains limited to hours. During this time, as a result of cellular injury, various proteins, peptides, and other molecules are released by the organ into the preservation medium.

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Background: Atypical hemolytic uremic syndrome (aHUS) is a very rare disease, which presents with microangiopathic hemolytic anemia, thrombocytopenia, and acute kidney injury. Progression to end-stage renal disease (ESRD) from acute kidney injury is observed in 60% of aHUS cases. The prognosis of aHUS patients who undergo kidney transplantation (Ktx) is generally poor, but these patients should be treated prophylactically with eculizumab to prevent recurrence after transplantation.

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Introduction: There is an increasing gap between organ supply and demand for cadaveric transplantation in our country. Our aim was to evaluate factors affecting selection of patients on waiting list at our hospital.

Method: Patients who have been waiting on list and who were transplanted were compared in order to find factors, which affected the selection of patients.

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Objectives: The mammalian target of rapamycin inhibitors sirolimus and everolimus are immunosuppressive drugs for kidney transplant patients, but adverse events may include proteinuria. The purpose of this study was to compare the effects of sirolimus and everolimus on creatinine clearance and proteinuria after kidney transplant.

Materials And Methods: This study was a prospective evaluation period of 50 patients (age, 16-65 y) who had kidney transplant.

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Encapsulating peritoneal sclerosis is a rare complication of long-term peritoneal dialysis ranging from moderate inflammation of peritoneal structures to severe sclerosing peritonitis and encapsulating peritoneal sclerosis. Complicated it, ileus may occur during or after peritoneal dialysis treatment or after kidney transplant. We sought to evaluate 3 posttransplant encapsulating peritoneal sclerosis through clinical presentation, radiologic findings, and outcomes.

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Objective. In the present study, since PON1 is known as an HDL-associated antioxidant enzyme that inhibits the oxidative modification of LDL and oxidative stress plays a role in the pathogenesis of mesenteric ischemia, we investigated the changes in PON1 activity and lipid profile in an experimental ischemic colitis model. Methods.

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Background: The aim of this study was to evaluate the utility of amylase and lipase as reliable predictive markers for functioning renal grafts, either short- or long-term.

Material/methods: Serum amylase (Amyl), lipase, creatinine (Cr), creatinine clearance (Cr Cl) and 24-hr proteinuria (Prot) were studied in 190 kidney recipients. The correlation of these outcomes for each parameter was tested.

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The aim of this report is to evaluate whether pregnancy is a risk factor for poor outcome of infection with hepatitis C virus or for allograft deterioration among kidney transplant recipients. The first case was in a 41-year-old pregnant kidney transplant recipient with hypercreatinemia and a history of toxic hepatitis. The second case was treated with interferon before transplant.

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Aim: The abdominal wall is an uncommon site of extrapelvic endometriosis. It usually develops in a previous surgical scar and should be considered in the differential diagnosis of any abdominal swelling. Classical symptoms of endometriosis may resemble abdominal wall lesions such as an incisional hernia, hematoma, granuloma, abscess or various soft tissue tumors; therefore, a definitive preoperative diagnosis is not always easy to determine in every case.

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Ramsay Hunt syndrome is a rare complication of herpes zoster disease in which reactivation of latent varicella zoster virus infection occurs in the geniculate ganglion causing otalgia, unilateral vesicular eruption in a restricted dermatomal distribution, and peripheral facial paralysis. Dermal infections caused by human pathogenic herpes viruses are common in organ transplant recipients. For a transplant surgeon, it is imperative to remember that viral prophylaxis is essential in the follow-up of the transplant patients.

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Purpose: Granulomatous mastitis (GM) is a rare benign inflammatory breast disease. The clinical presentation of granulomatous mastitis usually mimics malignancy or infection. The aim of this study was to review the clinical and diagnostic features of GM and discuss the medical and surgical treatment of our series of eight GM patients.

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Objectives: The obstetrician often has a difficult task in diagnosing and managing the acute abdomen in pregnancy. A reluctance to operate during pregnancy adds unnecessary delay, which may increase morbidity for both mother and fetus. In this study, we present our experience in pregnant patients with acute abdomen.

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Purpose: The objective of our study was to clarify the topography of the medial and lateral pectoral nerves (LPNs) and the vascularity in the infraclavicular fossa and to propose an ideal injection point for neuromuscular blockade of the pectoralis major (PM) muscle.

Methods: The pectoral muscles and their nerves were examined bilaterally on 10 formalin-fixed cadavers. The PM muscle was dissected from its clavicular origin and sternocostal attachments.

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Objectives/background: The aim of this study is to investigate the predictive value of intraoperative parathormone measurement addressing successful surgical resection in patients with secondary hyperparathyroidism.

Methods: The study included 42 consecutive patients operated on between May 2006 and July 2008. Patients were grouped according to successful surgery (Group 1, n = 36) and persistent postoperative hyperparathyroidism (Group 2, n = 6).

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Objectives/hypothesis: The goal of this study was to investigate the effects of routine thyroid gland palpation on serum thyroid hormone levels.

Study Design: Prospective study at Haydarpaşa Numune Research and Education Hospital, Istanbul, Turkey.

Methods: This study was carried out in two groups with a total of 50 consecutive adults.

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Introduction: This study aims to investigate gadolinium chloride (Gd) pre-treatment with/without splenectomy (Splx) in the setting of renal ischemia/reperfusion (IR) injury in rats.

Materials And Methods: Under anesthesia, male Wistar albino rats with or without splenectomized (Splx) were right nephrectomized and subjected to 45 min of renal pedicle occlusion followed by 3 h of reperfusion. Gadolinium chloride (10 mg kg(-1)) or saline was administered 24 hours prior to ischemia via penile vein.

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Purpose: Patients with very low rectal cancer were treated by intersphincteric rectal resection employing partial internal anal sphincter resection. They then underwent smooth muscle plasty to restore internal anal sphincter function. We assessed the functional and oncological outcomes.

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The Symphony study assessed whether mycophenolate mofetil (MMF)-based regimens containing reduced doses of adjunct immunosuppressants could reduce toxicity while maintaining efficacy. Here, we examined the impact of acute rejection and associated risk factors. The incidence of biopsy-proven acute rejection in the low-dose tacrolimus group was approximately half that of the standard-dose cyclosporine and low-dose cyclosporine groups, and a third of that in the low-dose sirolimus group.

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Hepatic hydatid cysts may cause serious complications. Intraperitoneal rupture of hepatic hydatid cyst is rarely seen and the prognosis can be fatal. By experience, we know that it might be difficult to diagnose an unruptured cyst expulsed into the peritoneal cavity.

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Chronic rejection is an immune process leading to graft failure. By regulating the trafficking of leukocytes, chemokines and chemokine receptors are thought to be one of the reasons causing acute renal rejection (ARE), which increases the possibility of chronic rejection and organ destruction. This study was designed to investigate, in the Turkish population, an association of chemokine receptor genetic variants, CCR2V641, CCR5-59029-A/G, CCR5-Delta32 and acute renal rejection after renal transplant surgery.

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Background/purpose: The aim of this study was to identify preoperative prognostic parameters for gangrenous cholecystitis to differentiate this subgroup of patients with acute cholecystitis in order to provide immediate surgical therapy.

Methods: The medical records of patients who had an emergency cholecystectomy with the diagnosis of acute cholecystitis between January 2002 and June 2005 were reviewed retrospectively. Univariate and multivariate analysis were performed on the data.

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Serum free prostate-specific antigen (fPSA) is the most useful tumor marker for prostatic cancer screening. However, recently, fPSA has also been detected in sera from patients with pancreatic diseases. In addition, it has been shown that zinc (Zn) concentration might change in both serum and tissues in pancreatic disease.

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Objective: This study was designed to determine the serum lipid profile and the activity of paraoxonase (PON1, the lipophilic antioxidant component of high-density lipoprotein [HDL]-cholesterol) in acute pancreatitis.

Methods: Acute pancreatitis was induced by injection of ethyl alcohol into the common biliary duct. Oxidative stress marker (malonyldialdehyde), lipid profile, and PON1 activity were determined in the serum.

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Aim: To investigate the oxidative-stress-related changes in rats with portal hypertension with particular emphasis on nitric oxide (NO) and trace metals.

Methods: Cirrhosis was induced by partial portal vein ligation (PVL) in Wistar rats. The lipid peroxidation marker (malondialdehyde, MDA), antioxidant defense enzymes including superoxide dismutase (SOD), catalase (CAT), glutathione (GSH), and agents known to have antioxidant features including nitric oxide (NO), zinc (Zn), copper (Cu) were determined both in serum and in liver tissue at 4 wk after surgery in PVL and sham-operated rats.

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