Search PubMed⌕ Search

Biomedical subjects

Sinan Celayir

Publications and source records attributed to Sinan Celayir.

9 recordsLinked to original sources

Neonatal gastric perforation: review of 23 years' experience.

PURPOSE: To review our experience of treating 13 neonates with gastric perforation (GP) over the past 23 years. METHODS: The records of all 13 patients were reviewed, noting gender, weight, gestational age, age at admission, associated anomalies, site of perforation, type of operation, and clinical outcome. RESULTS: There were 11 boys and 2 girls, with a mean body weight of 2 375 g, including 4 (45%) preterm infants. The mean age at admission was 3.2 days. Three (23%) infants had associated anomalies. Perforation occurred in the lesser curvature and anterior wall in 3 (23%) infants, at the greater curvature and anterior wall in 2 (15.4%), in necrosis of anterior wall in 1 (7.7%), at the esophageal junction and posterior wall in 2 (15.4%), at the lesser curvature and posterior wall in 1 (7.7%), at the lesser curvature and esophageal junction in 1 (7.7%), and the site was not specified in 3 (23%). Twelve patients were treated with gastrorrhaphy and drainage, and 1 was treated with gastrorrhaphy alone. Three patients required additional gastrostomy. Mortality was 53.8% (n = 7). Early diagnosis and management before clinical deterioration of the metabolic status improved the prognosis. CONCLUSION: The pattern of presentation and surgical findings should be investigated comparatively in premature and full-term neonates, as the etiology of this condition is likely to differ in these two gestational groups.

Drainage↗

The missing hazelnut.

This report describes a case of esophageal perforation caused by a hazelnut which became stuck in the upper esophagus but was not detected. We outline the pitfalls in diagnosis, complications and treatment in the pediatric population.

Airway Obstruction↗

Pyloric atresia: 15-year review from a single institution.

BACKGROUND: Pyloric atresia (PA) is a rare pathology. Calder presented the first pyloric atresia case in 1749 and Touroff, Sussman, Meltz, and their colleagues presented the first successful operation in 1940. PA has 3 types of anatomic variations: (1) type A, pyloric membrane or web; (2) type B, the pyloric channel is a solid cord; and (3) type C, in which there is a gap between the stomach and duodenum. Associated anomalies also have been described. Epidermolysis bullosa (EB) and intestinal anomalies occur most often with this condition. METHODS: Charts of 16 cases of congenital PA, aged 1 to 30 days and admitted to our department between 1986 and 2001, were studied retrospectively in regard to sex, prenatal diagnosis, presence of polyhydramnios, time of admission, pathology, type of operation, associated anomalies, and mortality rate. RESULTS: In the study group, the male to female ratio was 5:3, the mean birth weight was 2,312 g and the mean age of admission was 6.5 days. The distribution of the anatomic variations was type A in 9 (56.3%) and type B in 7 (43.7%) of cases. Associated anomalies were present in 7 cases (43.8%). Familial occurrence was a prominent feature of our series. Seven of 16 cases occurred in 3 families. We performed 9 web excisions together with Heineke Mikulicz (H-M) pyloroplasty, 5 atresia excisions and gastro-duodenostomy, and 2 H-M pyloroplasties alone. Stamm gastrostomy was supplemented in 3 cases. The overall mortality rate (n = 9) was 56.3%. CONCLUSIONS: Pyloric atresia can be managed successfully if it is diagnosed early. In this group of patients, congenital anomalies or septicemia are the main causes of mortality.

Abnormalities, Multiple↗

Effects of different sex hormones on male rabbit urodynamics: an experimental study.

BACKGROUND: The effects of different sex hormones on urodynamics in female rabbits have been investigated previously. Estrogen induces an increase in bladder capacity and compliance, whereas testosterone and progesterone reduced bladder capacity and compliance. OBJECTIVE: The aim of this study was to investigate the effects of sex hormones on bladder urodynamics in male rabbits. METHODS: 5 groups were set up for the study: group I, low midline laparotomy (LML) + 0.9% NaCl; group II, LML + testosterone; group III, LML + bilateral orchiectomy (BO) + testosterone; group IV, LML + BO + progesterone, and group V, LML + BO + estrogen. Baseline urodynamic records and blood sex hormone levels were measured. In the follow-up all rabbits from each group underwent urodynamics 5, 10 and 30 days after injection. Estrogen, progesterone and testosterone levels were also measured during the follow-up period. For statistical verification Mann-Whitney U and Kruskal-Wallis chi(2) tests were used. RESULTS: Hormone levels: Testosterone levels were found to be increased in groups II and III 5 and 10 days after the injection. Testosterone declined thereafter and returned to baseline levels on day 30. In groups IV and V progesterone and estrogen levels increased after the injection and returned to baseline levels on day 30. Urodynamics: In groups II and III testosterone increased the bladder capacity and compliance on days 5 and 10. In these groups, capacity and compliance decreased thereafter and returned to the baseline levels on day 30. These urodynamic findings correlated with the alterations in blood testosterone levels. In groups I and IV no changes were observed in bladder capacity and compliance. In group V capacity and compliance were found to be increased on day 5 after the injection and returned to baseline levels on day 30. The changes in bladder capacity were found to be statistically significant in groups II, III and V. CONCLUSION: In this study, after the injection of testosterone, bladder capacity and compliance increased with high blood testosterone levels in male rabbits. The most interesting finding was observed in the estrogen group, questioning the role of estrogens in males. These findings allow us to reconsider the role of sex hormones in bladder functions.

Abdomen↗

Which patients are at risk? Evaluation of the morbility and mortality in newborn pneumothorax.

This study was conducted to evaluate the morbidity and mortality among the newborns hospitalized for pneumothorax. The data of 83 cases were analysed retrospectively according to gestational age, weight, underlying primary lung pathology, age of admittance, side of pneumothorax, drainage time, need for mechanical ventilation and mortality. Male: Female ratio was 1.6:1. Mean duration of admission was 63.8 hours (2 hours-20 days). 51 patients (61.4%) weighed les than 2500g and 41 patients (49.4%) were preterms. The mean weight was 2280 g (640-5170). Fifty one patients (61.4%) needed mechanical ventilation. The pnemothorax was on the right in 44 (53%), left in 21 (25.7%) and bilateral in 18 patients (21.7%). Overall 32 babies died. Among the non-survivors, 22 (68%) were preterm and there was a defined underlying lung pathology in 24 (75%). Twenty nine (90.6%) of them needed mechanical ventilation. The difference in mortality was significant in the presence of primary lung disease, low birth weight, prematurity and use of mechanical ventilation (P <005).

Female↗

Is there a "bladder sex"? The relation of different sex hormones and sex hormone receptors in bladder in childhood.

The aim of this study was to review the classical concept of bladder physiology in regard to sex hormone effects and to focus on a new concept. Sex hormones affect bladder functions and the classical concept tries to explain these effects via alpha and beta adrenoreceptors. The effects of hormones had been investigated in this understanding. To obtain a biological response to steroids in target tissues, specific proteins--so-called receptors--are warranted. After the demonstration of the sex hormone receptors in bladder first in adults and in children urge questioning the effects of hormones in this regard. The hypothesis is based on the fact that, if a special receptor is present, the direct (via sex hormone receptors) effect is more likely to occur as an indirect effect (via alpha and beta adrenoreceptors). There is evidence that there is a sex difference and the sex receptors and hormones play an important role in some bladder disorders. Therefore we stress the importance of investigating especially the pediatric patients with bladder problems in regard to sex hormone receptors and hormonal status.

Child↗

Tracheostomy in childhood: 20 years experience from a pediatric surgery clinic.

BACKGROUND: There is a limited indication for tracheostomy procedures in pediatric surgery. It is rarely applied to the pediatric patient because they can be kept intubated for a longer duration compared with adults. Problems and complications can occur after tracheostomy, even during the childhood period. PURPOSE: The purpose of this study is to evaluate our experience with tracheostomy procedure. METHODS: Records of 17 children treated over a 20-year period (1978-99) were reviewed retrospectively in the aspects of indication, complication and mortality. RESULTS: There were 13 boys and four girls with a mean age 30.3 months (range: 1 week-13 years). Indications for tracheostomy were prolonged intubation (n = 5), subglottic stenosis (n = 3), general body trauma (n = 2), tracheomalasia (n = 2), tracheoesophageal cleft (n = 1), cervical tumor pressing trachea and larynx (n = 1), congenital myotonic dystrophy plus respiratory failure (n = 1), burn injury of trachea and esophagus (n = 1), and foreign body aspiration (n = 1). In the last decade the number of cases with tracheotomy increased due to the development of new intensive care units, the use of mechanical ventilation and the increasing number of patients needing prolonged ventilation support. In this group, tracheostomies were mainly performed electively. The overall complication rate was 29%. Mortality was 59% and there was one death related to the tracheostomy procedure. CONCLUSION: Tracheostomy is a life saving procedure when performed with an appropriate indication and surgical technique. Therefore, the pediatric surgeons dealing with this procedure should be aware of the tracheostomy care problems, fatal complications and the need for reconstructive surgery. With strict indications and experience of the procedure, this should be enough effort to minimize its complications and related care problems.

Adolescent↗