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Alpay Sarper

Publications and source records attributed to Alpay Sarper.

8 recordsLinked to original sources
PubMed2005

Cluster analysis of p-glycoprotein, c-erb-B2 and P53 in relation to tumor histology strongly indicates prognosis in patients with operable non-small cell lung cancer.

BACKGROUND: Various biomarkers have prognostic value in non-small cell lung cancer (NSCLC). We aimed to identify the roles of P53, c-erb- B2 and p-glycoprotein (pgp) as prognostic factors, independently or in conjunction with each other, in operable NSCLC. MATERIAL/METHODS: Seventy operable NSCLC cases were retrospectively evaluated for P53, c-erb-B2 and pgp expression patterns by immunohistochemistry. An unsupervised hierarchical cluster analysis of the 3 biomarkers was conducted. Univariate and multivariate survival analyses were made in relation to cluster affiliation. RESULTS: Cluster analysis yielded two distinct subgroups; group A of high biomarker expressors (n=26, 37%), and group B (n=44, 63%) of low expressors. Cluster affiliation with regard to tumor histology (interaction term) was independently associated with Recurrence- free survival (RFS) and Overall survival (OAS) with a Hazard Ratio (HR) of 5.88, P=0.003, and HR=4.68, P=0.012, respectively. The median OAS times for cluster A and B in the squamous cell carcinoma subgroup were 328 and 596 days, whereas the corresponding figures in the non-squamous cell carcinoma subgroup were non-measurable and 298 days. CONCLUSIONS: In operable NSCLC there may be different relationships of P53, c-erb-B2 and pgp with patient outcome for different tumor histologies. The prognostic utility of cluster affiliation with regard to these biomarkers, and in relation to tumor histology, deserves further testing.

ATP Binding Cassette Transporter, Subfamily B, Mem↗
PubMed2005

Tracheal stenosis aftertracheostomy or intubation: review with special regard to cause and management.

To investigate the management outcomes of patients who developed tracheal stenosis after tracheostomy or intubation, we reviewed the courses of 45 patients who had experienced tracheal stenosis at a single institution, over 19 years from February 1985 through January 2004. There were 38 tracheal and 7 infraglottic stenoses. Twenty-nine stenoses were associated with the stoma, 12 with the cuff, and 2 with the endotracheal tube resulting in infraglottic lesions; the remaining 2 were double stenoses. Eleven patients were treated by bronchoscopic surgery, and 34 patients were treated by tracheal or laryngotracheal resection. The overall success rate was 93%. The complication rate was 18%. A 2nd operation was required in 3 patients, and 1 of the 3 died of sepsis. Our management strategy of treating tracheal stenosis with resection and end-to-end anastomosis has been associated with good outcomes. Management of infraglottic stenosis is difficult, particularly when there is a large laryngeal defect or when there have been previous surgical attempts at the same site.

Adult↗
PubMed2004

[A rare tracheal malignant tumor: mucoepidermoid carcinoma (a case report)].

An 18-year-old male preferred to our clinic with hemoptysis, cough, dyspnea and stridor. A wide-based polypoid tumor that was localized at the right wall of the distal trachea was observed over 3 cm from the carina by flexible bronchoscope. Computerized tomography showed an intraluminal soft tissue density mass in the trachea. Though right thoracotomy, a tracheal resection that contains three rings of the trachea with malignant lesion was performed. Pathologic examination reported a tracheal mucoepidermoid carcinoma. The patient is alive without recurrence three years after surgery.

Adolescent↗
PubMed2003

The efficacy of self-expanding metal stents for palliation of malignant esophageal strictures and fistulas.

OBJECTIVES: Esophageal strictures and esophagorespiratory fistulas are complications of malignant esophageal tumors, which are difficult to manage. The efficacy of self-expanding metal stents (SEMS) for palliation of malignant esophageal strictures and fistulas was investigated prospectively. METHODS: Forty-three SEMS were inserted in 41 patients with malignant esophageal stricture or fistula. Our series included 32 men and nine women, of whom median age was 61.4 years. Twenty nine stents were inserted for stricture, ten for esophago-tracheal fistula, and four esophago-pleural fistula. Stents were inserted endoscopically under fluoroscopic control. RESULTS: SEMS implantation was technically successful in 40 of 41 patients. A second stenting was needed in two patients. Median dysphagia score improved from 3.4 to 1.3. The covered SEMS was succesful in completely sealing 85.7% of the fistulas. Complication occurred in 11 (26.8%) patients. Especially in the case of tumor stenoses in the distal esophagus, complication rate was higher (44%). In total six patients (14.6%) died after stent placement during early postoperative period. Procedure-related mortality was 4.8% (2/41). CONCLUSIONS: We conclude that treatment of malignant esophageal obstructions, including esophagorespiratory fistulas, with SEMS is an alternative palliative procedure. Furthermore SEMS implantation seems more safe in the case of tumor stenoses locating in the middle esophagus.

Adult↗
PubMed2003

Bronchogenic cyst.

The clinical presentation of the bronchogenic cyst is variable, from respiratory distress at birth to late appearance of symptoms. In order to determine clinical features and treatments, we retrospectively studied the medical records and pathology reports of all patients with bronchogenic cysts (n = 22) referred to our surgical department from February 1985 through January 2002. They included 18 male and 4 female patients with an age range of 1 to 38 years (average, 16.4 years). There were 14 mediastinal, 2 hilar, and 6 intrapulmonary bronchogenic cysts. Symptoms were present in 18 of the 22 patients. Cough was the most common symptom (45%). Ten patients (45%) presented with complications: severe hemoptysis, pneumothorax and pleuritis, esophageal compression, infected cyst, and postobstructive pneumonia. In all patients, complete resection of the bronchogenic cyst was performed by thoracotomy A postoperative sequela occurred in only 1 patient, who had a persistent air leak. There were no late sequelae, nor was there a recurrence of the cyst. The follow-up period ranged from 8 months to 12 years (mean, 5.2 years). Because a confident preoperative diagnosis is not always possible and because complications are common, we recommend surgical resection of all suspected bronchogenic cysts in operable candidates.

Adolescent↗
PubMed2002

Complete congenital sternal cleft associated with pectus excavatum.

We report herein a rare case of complete congenital sternal cleft (absent sternum) and anterior pericardial defect in association with pectus excavatum. In neonates with absent sternum, the sternal bars can be easily approximated by simple suture, due to the flexibility of the cartilaginous thorax. There is also little danger of cardiac compression when the repair is performed early in life. If reconstruction is delayed, the increased rigidity of the chest wall and the physiologic accommodation of the thoracic organs to the circumference of the chest render simple approximation impossible, without serious compromise of the heart and lungs. Our patient was a 13-year-old girl, whose case was particularly unusual because of the association of sternal cleft with pectus excavatum. After surgical correction of the pectus excavatum, we were able to construct a sternum by incising the lateral border of each sternal bar, thereby creating flaps that we sutured together at midline. The sternal bars were then approximated by loops of nonabsorbable suture around their circumference. The patient had an uncomplicated course, and at the 12-month follow-up visit, her sternal appearance was normal.

Adolescent↗
PubMedDate not supplied

Different clinical features of primary and secondary tumors in patients with multiple malignancies.

Clinical features of the first and second primaries in patients with multiple malignancies have not been extensively studied. We compared patient and treatment characteristics of the primary malignancy in 48 consequent multiple primary cancer patients with those of the second primary in the same cohort. The second primaries comprised fewer breast cancers; 29.2% of primaries as opposed to 10.4% of second tumors were breast cancer (P = 0.049). In addition, primary tumors tended to be at a lower TNM stage than secondary tumors (P = 0.060). The median overall survival after the diagnosis of the first primary for the whole cohort was 22.3 years (95% CI, 2.0-42.5) and the median time to presentation of the second malignancy was 38 months after the diagnosis of the first primary (range, 0 to 384). Therefore, the prognosis of cancers in the multiple malignancy group appears to be good and they appear to have an indolent clinical behavior. Thus, we recommend a long screening time for secondary tumors after a curative treatment in patients with common cancers, taking into account the different occurrence patterns of second primaries with respect to first primaries.

Adult↗