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1.
Head Neck ; 46(4): 849-856, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38197158

RESUMO

INTRODUCTION: The aim of our study is to determine the value of Thyroid Imaging Reporting and Data Systems (TIRADS) scoring in predicting malignancy in thyroid nodules by examining its relationship with fine needle aspiration biopsy and postoperative histopathological results. MATERIALS AND METHODS: In this study, patients who underwent surgery after ultrasonographic examination and fine needle aspiration biopsy for thyroid nodules at the General Surgery Clinic of Çukurova University Faculty of Medicine between January 2014 and November 2021 were retrospectively analyzed. The thyroid ultrasonography and fine needle aspiration biopsy of the included patients were performed by a clinician with 15 years of experience. The ultrasonographic features of the nodules were re-evaluated by the same clinician, and the American College of Radiology (ACR) TIRADS score was determined. Fine needle aspiration biopsy results were grouped according to Bethesda criteria. Postoperative histopathological examination results were divided into two groups: benign and malignant. The ACR TIRADS score was compared with fine needle aspiration biopsy and histopathological results. The performance of the ACR TIRADS score in predicting malignancy was determined. RESULTS: 79.8% of the 397 patients were female, and the mean age was 50.9 ± 12.8 years. The mean diameter of the nodules was 27.4 ± 15.8 mm. There was a significant, positive, but weak correlation between ACR TIRADS and Bethesda (p < 0.001) (r = 0.33). When the ACR TIRADS score was compared with histopathological results, it was found that the rate of malignancy increased as the TIRADS score increased (p < 0.001). The rates of malignancy diagnosis were 0% for TR1, 13.2% for TR2, 21.7% for TR3, 50.3% for TR4, and 72.4% for TR5. The area under the receiver operating characteristic curve for TIRADS in predicting malignancy was 0.747 (95% CI: 0.699-0.796, p < 0.001). TIRADS can distinguish malignancy with 75% accuracy. The optimal cutoff point was determined as TR4 with 80.3% sensitivity and 60.8% specificity. CONCLUSION: The ACR TIRADS scoring system is an effective risk classification system for thyroid nodules, providing 75% accuracy in predicting malignancy, with 80.3% sensitivity and 60.8% specificity values.


Assuntos
Neoplasias da Glândula Tireoide , Nódulo da Glândula Tireoide , Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Masculino , Nódulo da Glândula Tireoide/diagnóstico por imagem , Nódulo da Glândula Tireoide/cirurgia , Neoplasias da Glândula Tireoide/diagnóstico por imagem , Neoplasias da Glândula Tireoide/cirurgia , Estudos Retrospectivos , Biópsia por Agulha Fina/métodos , Sistemas de Dados , Ultrassonografia/métodos
2.
Autophagy ; 19(1): 306-323, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35722965

RESUMO

Macroautophagy/autophagy is an evolutionarily conserved cellular stress response mechanism. Autophagy induction in the tumor microenvironment (stroma) has been shown to support tumor metabolism. However, cancer cell-derived secreted factors that initiate communication with surrounding cells and stimulate autophagy in the tumor microenvironment are not fully documented. We identified CTF1/CT-1 (cardiotrophin 1) as an activator of autophagy in fibroblasts and breast cancer-derived carcinoma-associated fibroblasts (CAFs). We showed that CTF1 stimulated phosphorylation and nuclear translocation of STAT3, initiating transcriptional activation of key autophagy proteins. Additionally, following CTF1 treatment, AMPK and ULK1 activation was observed. We provided evidence that autophagy was important for CTF1-dependent ACTA2/α-SMA accumulation, stress fiber formation and fibroblast activation. Moreover, promotion of breast cancer cell migration and invasion by activated fibroblasts depended on CTF1 and autophagy. Analysis of the expression levels of CTF1 in patient-derived breast cancer samples led us to establish a correlation between CTF1 expression and autophagy in the tumor stroma. In line with our in vitro data on cancer migration and invasion, higher levels of CTF1 expression in breast tumors was significantly associated with lymph node metastasis in patients. Therefore, CTF1 is an important mediator of tumor-stroma interactions, fibroblast activation and cancer metastasis, and autophagy plays a key role in all these cancer-related events.Abbreviations: ACTA2/α-SMA: actin, alpha 2, smooth muscle CAFs: cancer- or carcinoma-associated fibroblasts CNT Ab.: control antibody CNTF: ciliary neurotrophic factor CTF1: cardiotrophin 1 CTF1 Neut. Ab.: CTF1-specific neutralizing antibody GFP-LC3 MEF: GFP-fused to MAP1LC3 protein transgenic MEF LIF: leukemia inhibitory factor IL6: interleukin 6 MEFs: mouse embryonic fibroblasts MEF-WT: wild-type MEFs OSM: oncostatin M TGFB/TGFß: transforming growth factor beta.


Assuntos
Autofagia , Neoplasias da Mama , Citocinas , Animais , Camundongos , Linhagem Celular Tumoral , Movimento Celular , Fibroblastos/metabolismo , Interleucina-6/metabolismo , Fator de Crescimento Transformador beta/metabolismo , Humanos , Feminino , Neoplasias da Mama/metabolismo , Citocinas/metabolismo
3.
BMC Surg ; 22(1): 40, 2022 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-35120473

RESUMO

BACKGROUND: Periductal mastitis (PM) is a rare disease characterized by chronic inflammation of the terminal mammary ducts. Complete removal of terminal lactiferous ducts with Hadfield procedure is a previously defined technique in treatment but carries various complications risks. This study aims to evaluate the effectiveness of modified techniques in the treatment of PM. METHODS: Twenty women who underwent surgery due to PM between January 2012 and December 2019 were retrospectively analyzed. Types of PM were determined. All patients were operated on with three different incisions [Hadfield's operation with periareolar incision (n:11), periareolar combined radial incision (n:7), and round block incision (n:2)]. RESULTS: The mean age was 37.5 ± 6.5 years (range: 24-49). Sixty percent of patients had type 3 PM. In Hadfield's procedure, NAC retraction (n:2), seroma (n:1), and hematoma (n:1) were seen. In the periareolar incision combined radial incision group only one patient had complications (seroma) and none in the round block method. Follow-up was 12 ± 1.5 months and disease relapse occurred in two patients in the Hadfield group. Patients who underwent round block were more satisfied with the appearance of the nipple. CONCLUSIONS: In the treatment of PM, the main principle of surgical treatment is the excision of the affected canal with a clear margin. Apart from the classical Hadfield procedure, the round block method and periareolar combined radial incision techniques can be performed in the treatment of PM.


Assuntos
Mamoplastia , Mastite , Ferida Cirúrgica , Adulto , Feminino , Humanos , Mastite/cirurgia , Mamilos/cirurgia , Estudos Retrospectivos
4.
Ann Ital Chir ; 92: 123-130, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34031288

RESUMO

OBJECTIVE: In this study, we aimed to investigate the clinical features of Papillary thyroid carcinoma(PTC) Tall cell variant(TCV), long-term outcomes and surgical experience in papillary thyroid carcinoma. MATERIAL-METHOD: 33 patients who were operated in our clinic between August 2012 and March 2018 and diagnosed as TCV in their pathology evaluation were included in the study. The demographic and clinical features of the patients, pathological features of the tumor and long-term results were examined. RESULTS: A total of 33 patients were included in our study. The mean age was 55.2(18-85) years. The female sex was more dominant (75.8%). The most common presenting complaint was swelling in the neck (75.7%).Total thyroidectomy was performed in 84.8% and completion thyroidectomy after lobectomy was performed in 15.2%. Neck dissection was performed in 33% of the patients. The mean tumor diameter was 3.6 (1-10) cm. The tumor was multifocal in 36.3% of the patients. The capsule invasion rate of the tumors was present in 69.7% of the patients, extrathyroidal rate was 39.4%, Metastatic lymph nodes were detected in 30.3% of the cases. The mean follow-up duration was 39.3+22.4(5.25-78.63) months. 39.4% of patients had distant metastasis during follow-up. Disease free survival rate was 57.6%, total survival was 42.4 + 3.8 (34.7-50.0) months. CONCLUSION: TCV is closely associated with larger tumor diameter, multifocal location, extrathyroidal spread and lymph node involvement, We believe that more aggressive surgery should be performed in the treatment of TCV cases and it is important to follow up the patients more closely. KEY WORD: Esophagus cancer, Neutrophil/lymphocyte ratio, Preoperative lymphocyte /neutrophil ratio, Prognosis.


Assuntos
Câncer Papilífero da Tireoide , Neoplasias da Glândula Tireoide , Tireoidectomia/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Esvaziamento Cervical , Prognóstico , Estudos Retrospectivos , Câncer Papilífero da Tireoide/diagnóstico , Câncer Papilífero da Tireoide/patologia , Câncer Papilífero da Tireoide/cirurgia , Neoplasias da Glândula Tireoide/diagnóstico , Neoplasias da Glândula Tireoide/patologia , Neoplasias da Glândula Tireoide/cirurgia , Adulto Jovem
5.
JCO Glob Oncol ; 6: 285-292, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-32109157

RESUMO

PURPOSE: Breast cancer is the most frequent cancer in women, and there is a great variability in surgical practice for treating that cancer in different countries. The aims of this study were to analyze the effect of guidelines from the Turkish Federation of Breast Diseases Societies on academic institutions that have breast centers and to evaluate surgical practice in Turkey in 2018. PATIENTS AND METHODS: Between January and March 2019, a survey was sent to breast surgeons who were working in breast centers in academic institutions. The sampling frame included 24 academic institutions with breast centers in 18 cities in Turkey to evaluate interdisciplinary differences among breast centers and seven regions in Turkey regarding patients' choices, surgical approaches, and academic institutions. RESULTS: All surgeons responded to the survey, and all 4,381 patients were included. Most of the surgeons (73.9%) were working in a breast center. Multidisciplinary tumor boards were performed in 87% of the breast centers. The average time between clinical evaluation and initiation of treatment was 29 days; the longest time was in Southeast Anatolia (66 days). Only 6% of patients had ductal carcinoma in situ. Sentinel lymph node biopsy was available in every region across the country and was performed in 64.5% of the patients. In 2018, the overall breast-conserving surgery rate was 57.3% in Turkey, and it varied from 72.2% in the Black Sea region to 33.5% in Central Anatolia (P < .001). Oncoplastic breast surgery options were available at all breast centers. However, 25% of the breast centers from the Black Sea region and half the breast centers from Eastern Anatolia and the Mediterranean region did not perform this type of surgery. CONCLUSION: Increasing rates of nonpalpable breast cancer and decreasing rates of locoregional recurrences favored breast-conserving surgery, especially in developed countries. Guidelines from the Turkish Federation of Breast Diseases Societies resulted in more comprehensive breast centers and improved breast health in Turkey.


Assuntos
Neoplasias da Mama , Mastectomia Segmentar , Mar Negro , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/cirurgia , Feminino , Humanos , Recidiva Local de Neoplasia , Turquia/epidemiologia
6.
Ann Ital Chir ; 91: 166-172, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31769413

RESUMO

OBJECTIVE: The aim of this study is to share the efficacy of the radionuclide occult lesion localization (ROLL) technique in secondary neck exploration in patients who had undergone neck exploration due to thyroid or parathyroid pathology and to share our clinical experience. MATERIAL AND METHOD: Data of 25 patients who underwent secondary neck exploration for recurrent thyroid cancer and parathyroid adenoma between January 2016 and December 2018 at the General Surgery Clinic of Balcali Hospital, Çukurova University Faculty of Medicine were collected retrospectively. On the operation day, 0.5 mCi Tc-99m macroaggregate albumin was injected into the lesion under ultrasound guidance (USG). Nerve monitoring was used in all patients. RESULTS: Twenty-five patients (21 females, 4 males) were included in the study. The mean age of the patients was 54.5 (24-79) years. Five patients were operated for parathyroid adenoma, 6 patients for papillary cancer after subtotal thyroidectomy, 13 patients for papillary cancer recurrence, 2 patients for medullary cancer recurrence, 2 patients for papillary cancer cervical lymph node metastasis and 1 patient for anaplastic cancer recurrence.Mean operative time was 100.6 min (60-160 min). Two patients had transient hypocalcemia and no other complications were seen. Parathyroid hormone (PTH) levels in patients with hyperparathyroidism, Thyroglobulin (Tg) levels in patients with recurrent papillary cancer, were significantly lower than preoperative levels (p<0.05). CONCLUSION: We believe that ROLL technique reduces the complication rate by decreasing dissection time and width. We recommend using it for thyroid cancer and parathyroid redo surgery. KEY WORDS: Parathyroid redo surgery, Radioguided surgery, Thyroid cancer.

7.
Ulus Travma Acil Cerrahi Derg ; 21(3): 168-74, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-26033648

RESUMO

BACKGROUND: Abdominal compartment syndrome (ACS) is a clinical syndrome characterized by progressive intraabdominal organ dysfunction resulting from an acute increase in intra-abdominal pressure (IAP). In the absence of prompt treatment, ACS can lead to lethal organ failure. Treatment of ACS is achieved by immediate decompression of the abdominal cavity. As to how and when decompression laparotomy should be performed depends on the clinical condition of the patients. There is limited data regarding outcomes of abdominal closure techiques. The present study aimed to investigate two different temporary closure methods, the vacuum assisted closure (VAC) and Bogota bag techniques, in 40 patients who underwent decompressive laparotomy as part of the management of ACS. METHODS: The study included 40 patients who developed ACS during follow-up or following trauma and abdominal surgery. As part of the treatment for ACS, these patients underwent decompressive laparotomy at the Cukurova University Medical Faculty, General Surgery Department and followed up in the Intensive Care Unit of the same hospital. VAC and Bogota bag procedures were performed as temporary closure methods for the treatment of ACS. Patients were randomly assigned to each of the two groups according to the temporary closure method performed. Clinical, laboratory, mortality and morbidity results of the patients in both groups were compared. RESULTS: Demographic features of the patients (age, sex, body mass index, co-morbidities) were similar between the two groups. The most common reason of ACS was gastrointestinal perforation in 12 (30%) patients. Decrease in incision width was significantly faster in the VAC group than in the Bogota group. Primary closure of fascia was considered appropriate in 16.9 days in the VAC group and 20.5 days in the Bogota bag group. The decrease in abdominal pressure was similar between the two groups on days 1, 4 and 7 but appeared to be significantly lower on day 14 in the VAC group. 12 patients (30%) died during the study. Among the deceased patients, 5 (12%) were in the VAC group, whereas, 7 (17.5%) belonged to the Bogota bag group. CONCLUSION: Based on these results, it is suggested that VAC has advantages when compared to the Bogota bag as a temporary closure method in the management of abdominal compartment syndrome.


Assuntos
Cavidade Abdominal/cirurgia , Traumatismos Abdominais/cirurgia , Síndromes Compartimentais/cirurgia , Descompressão Cirúrgica/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Tratamento de Ferimentos com Pressão Negativa/métodos , Complicações Pós-Operatórias , Resultado do Tratamento
8.
Indian J Surg ; 77(Suppl 2): 438-41, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26730041

RESUMO

In some patients of Fournier gangrene originated from perianal region, it is important to prevent fecal contamination in order to provide healing without wound infection. For this purposes, diverting colostomy or bowel management catheter methods were performed. In this study, it is aimed to carry out a comparison of prognosis and cost efficiency between diverting colostomy and bowel management catheter methods applied for preventing fecal contamination in Fournier's gangrene patients. Fourty-eight patients with diagnosis of Fournier's gangrene, serious perianal infections, and preserved sphincters and without rectum injury after debridement were included in the study. The cases were divided into two groups as patients who were subjected to colostomy for fecal diversion and who were subjected to bowel management catheter without colostomy. Then, the groups were compared in terms of age, predisposing factors, duration of hospital stay, mortality, additional surgery requirements, and cost. Fourty-eight patients were included the study. Sixteen patients were treated without colostomy. Decreased duration of total hospital stay, additional surgery requirements, and hospital expense in bowel management catheter group has determined. It is thought that preferring bowel management catheter method instead of colostomy in patients without rectum injury, who require diverting colostomy and have undamaged anal sphincters, can relieve patients, patients' relatives, healthcare organizations, and the national economy of a serious burden. In addition, although patients' satisfaction and workforce loss factors are not taken into consideration in this study, the bowel management catheter method is thought to have positive effects also on these parameters.

9.
Indian J Endocrinol Metab ; 18(6): 826-30, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25364678

RESUMO

BACKGROUND: Secondary hyperparathyroidism (SH) is major problem in chronic renal failure. There are studies to examine proliferation and apoptosis associated biomarkers expressions in parathyroid lesions to reveal specific features. In this study, we evaluated the expression of some growth factors and their receptors in parathyroid gland of patients with SH or primary hyperparathyroidism (PH). MATERIALS AND METHODS: A total of 49 patients had been operated for PH and 26 for SH. Parathyroid tissue samples were evaluated histopathologically and immunohistochemically using antibodies to human p53, KI-67, anti-human p21, antitransforming growth factor (TGF) α, CPP32 (caspase 3), and epidermal growth factor receptor (EGFR). RESULTS: Adenoma was higher in PH compared with SH as 48/49 and 3/26, respectively (P = 0.000). Parathyroid hyperplasia was found in 23/26 patients with SH and 1/49 patient with PH. In parathyroid tissue there were no difference between PH and SH for p53, Ki-67, caspase, EGFR expressions; while there were significantly difference for TGFα (P = 0.047) and borderline significant difference for p21 (P = 0.06) expressions. CONCLUSION: Adenoma was priority present in PH patients, hyperplasia was present in SH. There were no differences between primary and SH or adenoma and hyperplasia for expressions of cycline-dependent kinase inhibitor p21, p53, EGFR, Ki67, caspase; while TGFα expression was found to be different.

10.
Balkan Med J ; 31(1): 77-82, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25207173

RESUMO

BACKGROUND: Secondary hyperparathyroidism is a common acquired disorder seen in chronic renal failure. It may result in potentially serious complications including metabolic bone diseases, severe atherosclerosis and undesirable cardiovascular events. Parathyroidectomy is required in about 20% of patients after 3-10 years of dialysis and in up to 40% after 20 years. AIMS: The aim of the current study was to evaluate the short-term and long-term outcomes of patients with secondary hyperparathyroidism who had undergone total parathyroidectomy with autotransplantation and thymectomy or subtotal parathyroidectomy with thymectomy by the same surgical team during the study period. STUDY DESIGN: Retrospective comparative study. METHODS: Clinical data of 50 patients who underwent parathyroid surgery for secondary hyperparathyroidism between 2003 and 2011 were reviewed retrospectively. Patients were divided into two subgroups of total parathyroidectomy with autotransplantation or subtotal parathyroidectomy. Thymectomy was routinely performed for both groups. Short term outcome parameters included intact parathyroid hormone, ionized calcium and alkaline phosphatase levels. Bone pain, bone fractures, persistent or recurrent disease were included in long term outcome parameters. RESULTS: The mean duration of dialysis was eight years. The mean ionized calcium levels dropped significantly in the total parathyroidectomy with autotransplantation group (p=0.016). No serious postoperative complications were observed. Postoperative intravenous calcium supplementation was required in four patients in the total parathyroidectomy with autotransplantation group (total PTX+AT) and in three patients in the subtotal parathyroidectomy group (subtotal PTX). Postoperatively, all patients received oral calcium carbonate and calcitriol. The length of average hospital stay was 5 (3-10) days. Including nine patients who underwent successful renal transplantation pre-operative bone symptoms, hypercalcemia, hyperphosphatemia, and an increased alkaline phosphatase levels were improved or resolved in all patients. After a mean follow-up of 65 months, three patients (6%) had persistent and one (2%) had recurrent disease. CONCLUSION: Total parathroidectomy with autotransplantation is a beneficial and safe surgical procedure for patients on chronic dialysis with otherwise uncontrollable secondary hyperparathroidism and even in patients who have undergone renal transplantation after parathyroidectomy. Careful cervical exploration and routine thymectomy should be considered as a routine part of the surgical approach regardless of the preferred technique.

11.
Ann Saudi Med ; 34(6): 508-16, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25971825

RESUMO

BACKGROUND AND OBJECTIVES: The incidence of primary extrahepatic cystic echinococcosis (CE) is rare. Generally, radiological and serological findings can help establish the diagnosis of hepatic and pulmonary CE, but a CE in an unusual location with atypical radiological findings may complicate the differential diagnosis. The objective of this study is to present the characteristics of cases with extrahepatic CE in respect of sites of involvement, clinical presentations, radiological findings, serological diagnostic evaluations, and outcomes of infected patients. DESIGN AND SETTINGS: A retrospective analysis of surgically treated CE was conducted between January 1993 and January 2014 in the General Surgery, Pediatric Surgery, Urology, Cardiovascular Surgery, Neurosurgery, and Orthopedics departments of University of Cukurova, Faculty of Medicine, Balcal Hospital. PATIENTS AND METHODS: Among the 661 patients managed for CE, 134 had unusual sites of involvement. Radiological and serological examinations were used to differentiate CE from alveolar echinococcosis. RESULTS: Of 134 cases with unusual sites of involvement, 32 cases had liver CE (23.9%), 7 cases had lung CE (5.2%), and 2 cases had concomitant liver and lung CE (1.5%). In 93 (69.4%) cases, unusual organ involvement was isolated without any liver or lung involvement. The mean age was 45 years. Abdominal pain was the main symptom and was found in 104 patients. Thirty-one (23.1%) of 134 extrahepatic CE cases were evaluated as negative with indirect hemagglutination (IHA). However, positive results were obtained in 54 cases evaluated with Echinococcus granulosus IgG Western blot (WB), including 10 IHA-negative cases. CONCLUSION: CE with unusual localizations may cause serious problems of diagnostic confusion. The combination of clinical history, radiological findings, and serological test results (especially the WB) are valuable in diagnosing extrahepatic CE.


Assuntos
Infecções do Sistema Nervoso Central/diagnóstico , Equinococose/diagnóstico , Nefropatias/diagnóstico , Doenças Peritoneais/diagnóstico , Esplenopatias/diagnóstico , Adolescente , Adulto , Idoso , Infecções do Sistema Nervoso Central/complicações , Infecções do Sistema Nervoso Central/cirurgia , Criança , Equinococose/complicações , Equinococose/cirurgia , Equinococose Hepática/complicações , Equinococose Hepática/diagnóstico , Equinococose Hepática/cirurgia , Equinococose Pulmonar/complicações , Equinococose Pulmonar/diagnóstico , Equinococose Pulmonar/cirurgia , Feminino , Humanos , Nefropatias/complicações , Nefropatias/cirurgia , Masculino , Pessoa de Meia-Idade , Doenças Peritoneais/complicações , Doenças Peritoneais/cirurgia , Espaço Retroperitoneal/cirurgia , Estudos Retrospectivos , Esplenopatias/complicações , Esplenopatias/cirurgia , Turquia , Adulto Jovem
12.
Eurasian J Med ; 45(3): 207-10, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25610280

RESUMO

Although epidermal cysts are frequently observed throughout the body, they are rarely found in the retrorectal/presacral regions. Retrorectal epidermal cysts are congenital lesions of ectodermal origin and generally occur in women during the reproductive period. In this case report, a 47 year old female patient with 25 years of complaint of a mass extending from the perianal region to the retro-coccygeal region is discussed. A total mass excision with paracoccygeal incision was performed under spinal anesthesia. The histopathologic examination demonstrated an epidermal cyst. Correct diagnosis and appropriate treatment when first detected significantly decrease the recurrence and complication risks in all retrorectal tumors. Any mass should be completely removed in the treatment.

13.
Asian Pac J Cancer Prev ; 13(12): 6397-401, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23464465

RESUMO

BACKGROUND: No factor has thus far been identified to predict the efficacy of bevacizumab therapy for colorectal cancer. We here therefore studied PTEN, VEGF, HER2 and p53 by immunohistochemistry as possible prognostic and predictive factors. MATERIALS AND METHODS: A total of 34 retrospectively collected tumor samples were evaluated, all from patients receiving bevacizumab-based regimens. VEGF-A, PTEN, HER2, p53 were assessed and data was compared with clinicopathologic characteristics of patients and the bevacizumab response rate. RESULTS: In this study, the median age of the 34 metastatic colorectal cancer patients was 55.5 (24-75), twelve (35.3%) being women and 22 (64.7%) men. PTEN, VEGF, HER2, p53 expressions were compared with bevacizumab response and other chacteristics of disease. Statistical significant differences were not found between bevacizumab response rates and different expression levels of VEGF, PTEN, HER2 and p53 (respectively p=0.256, p=0.832, p=0.189, p=0.131). However, a survival difference was noted in the VEGF expression negative group (median OS:55 months; 95%CI, 22-88 months) (p=0.01). There was no statistically significant OS difference in other groups (PTEN p=0.6, HER2 p=0.189, p53 p=0.13). CONCLUSIONS: We did not find any predictive factor for BV therapy in our study. VEGF negative expression could be an important prognostic factor in metastatic colorectal carcinoma.


Assuntos
Inibidores da Angiogênese/farmacologia , Anticorpos Monoclonais Humanizados/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , PTEN Fosfo-Hidrolase/metabolismo , Receptor ErbB-2/metabolismo , Proteína Supressora de Tumor p53/metabolismo , Fator A de Crescimento do Endotélio Vascular/metabolismo , Adulto , Idoso , Bevacizumab , Neoplasias Colorretais/metabolismo , Neoplasias Colorretais/patologia , Feminino , Humanos , Imuno-Histoquímica/métodos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Adulto Jovem
14.
Surg Laparosc Endosc Percutan Tech ; 21(6): 443-9, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22146169

RESUMO

BACKGROUND: There is no debate that laparoscopic fundoplication has become the standard procedure for surgical management of gastroesophageal reflux disease. However, there is still no consensus on whether to use prosthetic material routinely and on the preferred kind of prosthetic material. The aim of this study was to evaluate polyglactin mesh and polypropylene mesh use in laparoscopic antireflux surgery (LARS) with particular regard to symptomatic relief, patient satisfaction, and complications. METHODS: This prospective randomized study included 75 patients who underwent LARS with polypropylene mesh prosthesis and 75 patients who underwent LARS with polyglactin (vicryl) mesh prosthesis between January 2005 and January 2010. Preoperative and postoperative assessments of symptomatic and functional outcomes of patients were recorded. Outcome data analyzed included length of hospitalization, operative time, complications, and recurrence. RESULTS: Laparoscopic repair of hiatal crura with a polyglactin mesh resulted in good symptomatic and clinical outcomes similar to that of polypropylene mesh. The recurrence rate with the use of polyglactin mesh is comparable to that of synthetic or biological materials reported in the literature. CONCLUSIONS: Closure of hiatal crura with a prosthetic polyglactin (vicryl) mesh at LARS is an effective and safe procedure.


Assuntos
Fundoplicatura/métodos , Refluxo Gastroesofágico/cirurgia , Laparoscopia/métodos , Poliglactina 910/uso terapêutico , Telas Cirúrgicas , Adulto , Idoso , Esofagite Péptica/cirurgia , Feminino , Hérnia Hiatal/cirurgia , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Complicações Pós-Operatórias/etiologia , Estudos Prospectivos , Implantação de Prótese , Recidiva , Resultado do Tratamento , Adulto Jovem
15.
Turk J Gastroenterol ; 21(1): 7-11, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20533105

RESUMO

BACKGROUND/AIMS: Ingestion of a chemical agent is a serious problem, and several treatment protocols to prevent stricture formation have been proposed. We conducted a randomized prospective study to evaluate the effectiveness of oral intensive sucralfate plus conventional therapy compared to conventional therapy alone. METHODS: Fifteen patients with stage 2b and 3 corrosive esophagitis admitted to our gastroenterology, general surgery and intensive care units between 2004 and 2007 were included. Patients were divided into two groups. The patients in the first group (n=8) received intensive sucralfate therapy plus conventional therapy, while the other group (n=7) received only conventional therapy. We performed upper endoscopic procedures on days: 0, 21, 45, 90 and 180 to identify the emergent complications. RESULTS: In the first group, only one patient had stricture formation, allowing passage of a 9.2 mm endoscope and causing no dysphagia, on day 45. There was no progression in the stricture on follow-ups at the 3rd and 6th months. In the second group, 6 patients had stricture formation causing narrowing and dysphagia. CONCLUSIONS: Intensive sucralfate therapy may decrease the frequency of stricture formation in patients with advanced corrosive esophagitis. Further studies with large groups of patients are required to confirm our findings.


Assuntos
Queimaduras Químicas/tratamento farmacológico , Esofagite/induzido quimicamente , Esofagite/tratamento farmacológico , Sucralfato/uso terapêutico , Adulto , Estenose Esofágica/prevenção & controle , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Sucralfato/administração & dosagem
16.
J Plast Reconstr Aesthet Surg ; 63(1): 133-9, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19010110

RESUMO

BACKGROUND: Pilonidal sinus is a difficult disease to treat. Many treatment modalities from secondary-intention healing to various types of flaps have been used with each having different rates of success. MATERIALS AND METHODS: A perforator flap based on the superior gluteal artery perforators was designed at 45( degrees )-angle to the defect created by the excision of the pilonidal sinus and was transposed in 15 male patients with un-operated chronic pilonidal sinus. Defect and flap size, length of surgery, blood loss, time to mobilisation, hospital stay, time of return to work and rate of complications were evaluated. RESULTS: The average defect size in length, width and depth were 6.9 cm, 3 cm and 3 cm, respectively. The cutaneous part of the flaps was exactly the same size as the defect. The average length of surgery was 45 min (sinus excision 10 min, flap harvest 15 min and closure 20 min) with blood loss being less than 25 cm(3). Patients were mobilised and discharged home the morning after surgery (less than 24h). The patients were able to return to normal daily activities after 3 days and to work 10 days after the surgery. There were no complications and no recurrences at an average of a 10-month follow-up. CONCLUSION: The superior gluteal artery perforator flap (SGAP) offers many advantages over random (better vascularity and flap safety) or larger flaps (decreased operating time and donor-area morbidity) in the treatment of pilonidal sinus disease. We present our results with the use of the SGAP flap, which is designed at a 45( degrees )-angle to the defect created by the excision of the pilonidal sinus. Compared to the previously described techniques, it has the advantage of closing defects of any size within a short surgical time and minimal blood loss. The hospital stay, time to mobilisation and return to daily activities and work are shortened, in addition to zero complications and recurrence rates.


Assuntos
Nádegas/irrigação sanguínea , Nádegas/cirurgia , Seio Pilonidal/cirurgia , Retalhos Cirúrgicos/irrigação sanguínea , Adolescente , Adulto , Doença Crônica , Humanos , Masculino , Resultado do Tratamento
17.
Eur J Intern Med ; 20(4): 403-6, 2009 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19524183

RESUMO

UNLABELLED: The aim is to evaluate the antioxidant enzyme levels in tumoral tissues and accompanying normal tissues in gastrointestinal cancer; and compare the colorectal cancer (CRC) with gastric cancer (GC). METHOD: Antioxidant enzymes including glutathione reductase (GR), glutathione peroxidase (GPX), superoxide dismutase (SOD), malondialdehyde (MDA) and glucose 6 phosphate dehyrogenase (G6PD) which are important for anti-oxidant functions were evaluated in fresh tumor tissues and adjacent normal tissues obtained from a total of 58 patients. RESULTS: All the enzyme levels were higher in tumoral tissues compared to normal tissue from non-cancerous disease. There was not a significant difference for enzyme levels between CRC and GC groups except GPx. GPx activity tended to be higher in cases without serosal involvement (SI), and this activity was higher in cases without lymph node (LN) involvement in normal tissue (p=0.012). MDA activity was higher in cases without serosal involvement compared to with SI groups in tumor tissue (p=0.050). G6PD activity in normal tissue was higher in cases with serosal involvement and LN involvement (p=0.064, 0.046, respectively). GR activity was higher in signet ring cell cancer (SRC) than adeno cancer. In GC, G6PD activity in tumor was tended to be higher in undifferentiated cancer (p=0.071). CONCLUSION: The antioxidant enzymes activities such as GPX, SOD, G6PD, MDA and GR were found to be related with malignant phenotype in gastrointestinal cancers. We need further studies to understand the biologic and clinical importance of these enzymes in GI cancers.


Assuntos
Adenoma/metabolismo , Antioxidantes/metabolismo , Carcinoma de Células em Anel de Sinete/metabolismo , Neoplasias Gastrointestinais/metabolismo , Adenoma/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células em Anel de Sinete/patologia , Feminino , Neoplasias Gastrointestinais/patologia , Glucosefosfato Desidrogenase/metabolismo , Glutationa Peroxidase/metabolismo , Glutationa Redutase/metabolismo , Humanos , Masculino , Malondialdeído/metabolismo , Pessoa de Meia-Idade , Estresse Oxidativo/fisiologia , Espécies Reativas de Oxigênio/metabolismo , Superóxido Dismutase/metabolismo , Adulto Jovem
18.
Turkiye Parazitol Derg ; 32(3): 208-20, 2008.
Artigo em Turco | MEDLINE | ID: mdl-18985573

RESUMO

Cystic echinococcosis (CE) caused by the metacestode form of Echinococcus granulosus is a major public health problem especially in animal-raising regions of the world. In the present study, CE cases were determined during 2001-2005 by investigating different hospital and health directorship documents and Health Ministry documents, retrospectively. Our results show that there were 2534 (13.13%) cases in the Marmara region; 2114 (16.94%), in the Aegean region; 2578 (16.09%), Mediterranean region; 5404 (38.57%), in the Middle Anatolian region; 428 (5.70%), in the Black Sea region; 844 (6.80%), in the eastern Anatolian region; and 887 (2.75%), in the southeastern Anatolian region making a total of 14,789 CE cases. Finally, it has been determined that the patients were hospitalized for a total of 149,464 days.


Assuntos
Equinococose/epidemiologia , Animais , Feminino , Humanos , Masculino , Prevalência , Estudos Retrospectivos , Turquia/epidemiologia
19.
Surg Today ; 38(9): 826-32, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18751948

RESUMO

PURPOSE: The aim of this study is to compare the results of different operating techniques and suture materials for pyloric exclusion procedures. METHODS: The study was conducted on a sample of 125 rats. Transgastric pyloric exclusions with gastrojejunostomy were performed on the first 50 rats, which were divided into two groups each of 25: a resorbable (polyglactin) suture material was used in the first group and a nonresorbable (silk) material was used in the second group. External pyloric exclusion with a gastrojejunostomy were performed in a subsequent group consisting of 50 rats, again divided into two subgroups of 25 each with an absorbable (polyglactin) suture material used in one and a nonabsorbable (silk) material used in the other. For the last 25 rats external pyloric exclusion with a gastrojejunostomy were performed and a nonresorbable (polypropylene) material was used. RESULTS: The ratio of pyloric reopening was higher in the transgastric group than the external exclusion group on the 14th day (P = 0.01). The external pyloric exclusion group with polypropylene suture material had the lowest ratio of pyloric reopening. CONCLUSION: The external pyloric exclusion technique with nonresorbable (preferably polypropylene) suture material was therefore found to provide a higher pyloric closure incidence on the 14th day, which is the necessary duration period for healing in duodenal injuries.


Assuntos
Derivação Gástrica/métodos , Piloro/cirurgia , Suturas , Absorção , Animais , Poliglactina 910 , Polipropilenos , Ratos , Ratos Wistar , Seda , Técnicas de Sutura
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