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Dive into the research topics where Gursu Kiyan is active.

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Featured researches published by Gursu Kiyan.


International Journal of Pediatric Otorhinolaryngology | 2009

Foreign body aspiration in children: The value of diagnostic criteria

Gursu Kiyan; Basar Gocmen; Halil Tugtepe; Fazilet Karakoc; Elif Dagli; Tolga E. Dagli

OBJECTIVE Foreign body aspiration (FBA) is a serious problem in children. While bronchoscopy should be performed in all patients with aspiration; patients without aspiration should be carefully excluded to avoid an unnecessary bronchoscopy. In this study we analyzed the details of our series, complication rates and compared the diagnostic findings between patients with an aspirated FB and those without. We also calculated the sensitivities, specificities, positive predictive values and negative predictive values of clinical history, symptoms, physical examination findings and radiological findings in patients with suspected FBA (sFBA). Finally, we evaluated the validity of our bronchoscopy indications in these patients. METHODS We reviewed the data of 207 patients who underwent rigid bronchoscopy for sFBA. We used clinical history, symptoms, physical examination and radiological findings as diagnostic findings. Complication rates in addition to these four diagnostic criteria constitute our indications for performing a rigid bronchoscopy. RESULTS After excluding 15 patients with radiopaque FB or previous fiberoptic bronchoscopy, 138 of 192 patients had an aspirated foreign body. The sensitivity and specificity of clinical history, symptoms, physical examination findings and radiological findings were 90.5% and 24.1%, 97.8% and 7.4%, 96.4% and 46.3, and 71.7% and 74.1% respectively. There was only one major complication which caused moderate neurological sequelae. There was no mortality and no thoracotomy or tracheotomy requirement in this group. CONCLUSIONS While symptoms, physical examination findings and clinical history had high sensitivities, radiological findings had the highest specificity. Low specificities of clinical history, symptoms and physical examination findings were due to our expanded bronchoscopy indication, which aimed to include all patients with foreign body aspiration. Our low complication rate facilitated the expansion of bronchoscopy indications, even for patients with slight clinical suspicion.


Respiration | 2008

Home Ventilation for Children with Chronic Respiratory Failure in Istanbul

S. Oktem; Refika Ersu; Z.S. Uyan; Erkan Cakir; Fazilet Karakoc; Bulent Karadag; Gursu Kiyan; Elif Dagli

Background: The number of children on home mechanical ventilation (HMV) has increased markedly in Europe and North America but little is known about the HMV use and outcomes in children in Turkey. Objective: To review clinical conditions and outcome of children who were discharged from the hospital on respiratory support. Methods: Thirty-four patients assessed at the Marmara University Hospital in Istanbul who had been receiving ventilatory support at home for more than 3 months were included in the study. Results: Thirty-four patients with a median age of 5.1 years were discharged home with ventilatory support. HMV was started in 2001 at our institution and the number of children treated has increased substantially since then (2001: n = 1, 2002: n = 3, 2003: n = 3, 2004: n = 2, 2005: n = 14, 2006: n = 11).Ventilatory support was started at a median age of 1.8 years and continued for 13 months. Eleven (32.4%) patients received invasive mechanical ventilation via tracheostomy and 23 (67.6%) patients received noninvasive mechanical ventilation. Sixteen children (47.1%) were on noninvasive mechanical ventilation via nasal mask while 7 (20.6%) used a face mask. Seven (20.6%) patients received ventilatory support for 24 h and 27 (79.4%) patients were supported only during sleep. Twenty-four (70.6%) children received supplemental oxygen in addition to ventilatory support. Three patients successfully came off ventilatory support; 11 patients died during follow-up. None of the patients had home nursing and there were no life-threatening complications. Conclusions: A rapidly rising trend of HMV use in chronic respiratory failure (CRF) has been observed in this study. HMV can be safely applied in selected children with CRF with close monitoring and proper follow-up in developing countries despite the lack of home nursing.


Clinical Nuclear Medicine | 2005

Contradictory supranormal function in hydronephrotic kidneys: fact or artifact on pediatric MAG-3 renal scans?

Sabahat Inanir; Nese Karaaslan Biyikli; F. Omid Noshari; Billur Caliskan; Halil Tugtepe; Tanju Yusuf Erdil; Ihsan Akpinar; Gursu Kiyan; Harika Alpay

Objectives: Contradictory supranormal renal function (SRF) in unilateral hydronephrosis is a debatable subject resulting from the methodology of nuclear renography or the characteristics of the patient. In this study, we aimed to investigate the frequency and comparison of SRF with MAG-3 scans by 8 different technical analyses in pediatric hydronephrosis. Methods: We reviewed Tc-99m MAG-3 scans in 82 children with unilateral hydronephrosis (52 male, 30 female, mean age: 47.7 ± 64.5 months). Of 82, 34 also had Tc-99m DMSA scans. Data were reprocessed with 4 different regions of background activity (subrenal, perirenal C-type, perirenal ring, and lateral) at 2 different time intervals (1–2 and 2–3 minute), and 8 different estimates of MAG-3 differential renal function (DRF) were obtained in 67 patients. SRF was defined as DRF greater than 55% in the hydronephrotic kidney. Results: The routine processing protocol showed only 3 renal units with SRF, and all were on the right side (3.6%). After reprocessing, a total of 10 dilated kidneys had SRF in 1 or more of DRF estimates (5.2% of all estimations). These cases were significantly younger (8.1 ± 6.7 vs. 42.5 ± 52.5, P < 0.05) and had a larger renal area ratio (1.25 ± .24 vs. 1.07 ± .21, P < 0.05). There was no SRF with DMSA. In comparison between MAG-3 and DMSA DRF in 20 children who underwent both tests within 3 months, the best correlation was obtained when C-type correction was used for both agents at 2 time intervals (r: .86 and .84 for early and late time intervals, P < 0.00001, respectively). Conclusions: SRF in unilateral hydronephrosis is, at least, in part, technical in origin in this particular pediatric patient population with tubular immaturity (ie, physiological high background activity) and asymmetric kidney size.


European Urology | 2003

Epididymitis in Infants with Anorectal Malformation

Gursu Kiyan; Tolga E. Daǧlı; Serdar H. İskit; Halil Tuǧtepe

OBJECTIVE To document the characteristics of epididymitis in boys with anorectal malformations. METHODS Sixty-six boys with anorectal malformation were treated between January 1990 and January 2000, in our center. Four of these boys experienced epididymitis attacks. The first three patients had rectourinary fistula and the fourth had a low type anorectal malforation without a rectourinary fistula. RESULTS Patients were followed up for seven to nine years and epididymitis did not recur after the definitive operation in the first three patients. The fourth patient had four other episodes of epididymitis postoperatively and no reason for these episodes could be found during the further urological evaluation. Two patients had urinary tract infection and one patient had urinary tract contamination during their episodes of epididymitis. CONCLUSION The cause of the epididymitis can be anorectal malformation with rectourethral fistula itself or another urogenital anomaly that is associated with anorectal malformation. There is a relationship between urinary tract infection and epididymitis in these patients.


Medical mycology case reports | 2017

Catheter-related Saccharomyces cerevisiae Fungemia Following Saccharomyces boulardii Probiotic Treatment: In a child in intensive care unit and review of the literature

Serkan Atıcı; Ahmet Soysal; Kıvılcım Karadeniz Cerit; Şerife Yılmaz; Burak Aksu; Gursu Kiyan; Mustafa Bakir

Although Saccharomyces boulardii is usually a non-pathogenic fungus, in rare occasions it can cause invasive infection in children. We present the case of an 8-year-old patient in pediatric surgical intensive care unit who developed S. cerevisiae fungemia following probiotic treatment containing S. boulardii. Caspofungin was not effective in this case and he was treated with amphotericin B. We want to emphasize that physicians should be careful about probiotic usage in critically ill patients.


Pediatric Pulmonology | 2008

An Unusual Case of Chylothorax Complicating Childhood Tuberculosis

Erkan Cakir; Basar Gocmen; Zeynep Seda Uyan; Sedat Oktem; Gursu Kiyan; Fazilet Karakoc; Refika Ersu; Bulent Karadag; Tolga E. Dagli; Elif Dagli

Endobronchial tuberculosis (EBTB) and chylothorax are rare clinical disorders. The concurrence of these two disorders as manifestations of childhood pulmonary tuberculosis has not been reported. We report a 4‐month‐old boy presenting with chylothorax as the initial presentation of tuberculosis that has been successfully treated with octreotide, antituberculosis drugs and steroid therapy. Pediatr Pulmonol. 2008; 43:611–614.


Journal of Pediatric Surgery | 2013

Horner's Syndrome as a rare complication of tube thoracostomy: Case reports and review of literature

David Terence Thomas; Tolga E. Dagli; Gursu Kiyan

Horners Syndrome (HS), caused by the interruption of the oculosympathetic pathway, is a rare yet morbid complication of tube thoracostomy. However, literature regarding HS secondary to tube thoracostomy is limited to case reports, with little comprehensive information available. We report two cases and review all cases from the published literature to assess the outcome of this complication. HS secondary to tube thoracostomy leaves sequelae in 45.8% of patients. Immediate removal or repositioning of the tube does not affect prognosis. Therefore, precautions must be taken to avoid this complication.


Journal of Pediatric Surgery | 1998

Interstitial hernia: A diagnostic dilemma in infants and children

Serdar H. İskit; Tolga E. Daǧlı; Gursu Kiyan; Çiǧdem Ulukaya Durakbaşa

The features of the rare interstitial hernia, as seen in four children, are described. All were boys ranging in age from 7 days to 7 years. The presenting sign was swelling in the right side of the abdomen associated with undescended testis. The hernias arose at the deep inguinal ring and expanded superiorly between the internal and external oblique muscles. Repair involved a standard herniotomy and orchidopexy through an oblique inguinal incision-except in one patient with a vanishing testis. The importance of being aware of this rare type of hernia is stressed.


International Journal of Pediatric Otorhinolaryngology | 2010

Diaphragmatic paralysis after pediatric heart surgery: Usefulness of non-invasive ventilation

Sedat Oktem; Erkan Cakir; Zeynep Seda Uyan; Bulent Karadag; Refika Hamutçu; Gursu Kiyan; Figen Akalın; Fazilet Karakoc; Elif Dagli

Diaphragmatic paralysis after cardiac surgery is an important complication especially in infants. We report a child who developed diaphragmatic paralysis, atelectasis, bronchomalasia and respiratory failure following cardiac surgery. Ventilatory support alleviated respiratory distress in this child. This report illustrates the usefulness of invasive and non-invasive ventilatory support for a pediatric patient with diaphragmatic paralysis.


European Surgical Research | 2004

Effects of Stamm gastrostomy on gastric emptying rate in rats.

Halil Tugtepe; H.S. İskit; Suheyla Uyar Bozkurt; Gursu Kiyan; Berrak Ç. Yeğen; Tolga E. Dagli

Aim: Although frequency of gastroesophageal reflux (GER) increases after gastrostomy, the role of gastric emptying in GER has not been evaluated. In this study, we examined the effects of Stamm gastrostomy on gastric emptying rate in rats and whether Stamm gastrostomy induces GER or not. Methods: Sprague-Dawley rats were divided into three groups. Stamm gastrostomy was done in the first group (SG). Sham operation was carried out in group 2 and the 3rd group served as control. Gastric emptying was assessed using both liquid and solid meals in each group at postoperative 14th day. For solid meal emptying, after fasting of 16 h, the rats were fed for 3 h and gastric emptying rate was measured at the fifth hour. Methylcellulose was used for emptying of liquids and it was given after the animals were fasted for 16 h and gastric emptying rate was measured 30 min later. Histological evaluation for GER was performed in all groups. Results: GER was observed pathophysiologically in 5 of the 7 rats in SG group. Gastric emptying rates of liquid and solid meals were found to be similar in control, SG or sham groups. Conclusion: Surgical gastrostomy does not affect the gastric emptying of solid and liquid meals in rats. Other mechanisms should be considered in the development of GER observed following gastrostomy.

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