Impact of Increased Activated Protein-C Resistance, Decreased Antithrombin III Activity and Hypocomplementemia on the Gestational Outcomes of Pregnancies with MTHFR Polymorphisms.

OBJECTIVE: To evaluate the impact of increased Activated Protein C (APC) resistance, decreased antithrombin III activity and hypocomplementemia on the pregnancy outcomes of the patients with methylentetrahydrofolate reductase (MTHFR) polymorphisms. METHODS: This study was composed of 83 pregnancies with MTHFR polymorphisms. Increased APC resistance, decreased antithrombin III activity and hypocomplementemia were accepted as risk factors for poor gestational outcome. RESULTS: Having at least one risk factor resulted in significantly higher rates of "APGAR score of<7" at the first ten minutes (p=0.009). Composite adverse outcome rate was also higher in patients with at least one of the defined risk factors despite lack of statistical significance (p=0.241). Rate of newborn with an "APGAR score of<7" at first ten minutes was significantly higher at patients with hypocomplementemia (p=0.03). CONCLUSION: Hypocomplementemia is a risk factor for poor gestational outcome in pregnancies with MTHFR polymorphisms.

Nuclear Deformability of Breast Cells Analyzed from Patients with Malignant and Benign Breast Diseases.

Breast cancer is a heterogeneous and dynamic disease, in which cancer cells are highly responsive to alterations in the microenvironment. Today, conventional methods of detecting cancer give a rather static image of the condition of the disease, so dynamic properties such as invasiveness and metastasis are difficult to capture. In this study, conventional molecular-level evaluations of the patients with breast adenocarcinoma were combined with in vitro methods on micropatterned poly(methyl methacrylate) (PMMA) biomaterial surfaces that deform cells. A correlation between deformability of the nuclei and cancer stemness, invasiveness, and metastasis was sought. Clinical patient samples were from regions of the breast with different proximities to the tumor. Responses at the single-cell level toward the micropatterned surfaces were studied using CD44/24, epithelial cell adhesion marker (EpCAM), MUC1, and PCK. Results showed that molecular markers and shape descriptors can discriminate the cells from different proximities to the tumor center and from different patients. The cells with the most metastatic and invasive properties showed both the highest deformability and the highest level of metastatic markers. In conclusion, by using a combination of molecular markers together with nuclear deformation, it is possible to improve detection and separation of subpopulations in heterogenous breast cancer specimens at the single-cell level.

GC-MS Based Metabolomics Analysis to Evaluate Short-Term Effect of Tumor Removal on Patients with Early-Stage Breast Cancer.

In this study, it was aimed to demonstrate the short-term effect of breast cancer surgery and tumor removal on the metabolomic profiles of patients with early-stage breast cancer. This cohort consisted of 18 early-stage breast carcinoma patients who had breast cancer surgery to remove tumor and surrounding tissues. The blood samples obtained preoperatively and 24 h after surgery were used in this investigation. Gas chromatography-mass spectrometry (GC-MS) based metabolomic analysis was performed to determine the metabolites. The GC-MS-based metabolomics profile enabled the identification of 162 metabolites in the plasma samples. Postoperatively, glyceric acid, phosphoric acid, O-phosphocolamine, 2-hydroxyethyliminodiacetic acid, N-acetyl-D-mannosamine, N-acetyl-5-hydroxytryptamine, methyl stearate, methyl oleate, iminodiacetic acid, glycerol 1-phosphate, ß-glycerol phosphate and aspartic acid were found to be significantly increased (P < 0.05 for all), whereas saccharic acid, leucrose, gluconic acid, citramalic acid and acetol were significantly decreased (P < 0.05 for all). Breast cancer surgery and tumor removal has an impact on the metabolomic profiles of patients with early-stage breast cancer. These findings can be used for understanding the pathogenesis of breast cancer biology and screening the success of the surgery.

Impact of anti-thyroid peroxidase and anti-thyroglobulin antibodies on the gestational outcome of euthyroid pregnancies: A retrospective study.

BACKGROUND: Thyroglobulin (anti-TG) and/or thyroid peroxidase (anti-TPO) autoantibodies are associated with higher rates of poor gestational outcomes. OBJECTIVE: To demonstrate the impact of anti-TPO and anti-TG autoantibodies on the gestational outcomes of euthyroid pregnant women with a history of poor gestational outcome and thyroid gland disorders. METHODS: This retrospective study included totally 75 euthyroid pregnant, 30 of women with high thyroid autoantibodies (Anti-TPO/Thyroglobulin-positive group) and 45 of them without autoantibodies (control group). RESULTS: We could not demonstrate significant differences between two groups in terms of risk factors/co-morbidities, obstetric complications, gestational outcomes, and birth data (p> 0.05). However, enhanced miscarriage rates were observed among the Anti-TPO/Thyroglobulin-positive and control groups without significance (36.7% and 17.8% respectively, p= 0.116). High neonatal intensive care unit (NICU) admission rates were found for control and Anti-TPO/Thyroglobulin-positive groups (16.2% and 21.1%, respectively) (p= 0.720). Clinically, we compared the two groups in terms of the existence and the types of goiter (diffuse and nodular), and demonstrated that nodular goiter was statistically more frequent in the control group (40.0% vs. 8.7%, p= 0.015). Alongside, relatively high hereditary thrombophilia and type-2 diabetes mellitus rates were found in the Anti-TPO/Thyroglobulin-positive group (20.0% and 20.0%). CONCLUSION: Thyroid autoantibody positivity is likely a risk factor for early pregnancy loss and NICU admission.

Musculoskeletal and anthropometric factors associated with urinary incontinence in pregnancy.

INTRODUCTION: Urinary incontinence (UI) is a common pelvic floor dysfunction in pregnancy. The relationship between biomechanical changes and pregnancy-related UI has not been fully elucidated. OBJECTIVE: To investigate the association of various musculoskeletal and anthropometric changes in pregnancy that affect gestational UI. METHODS: The study was conducted with 275 pregnant women. Ninety-three, 110 and 72 women were in first, second and third trimesters, respectively. Incontinence Impact Questionnaire for UI, Urogenital Distress Inventory-Short Form and Incontinence Severity Index were applied. Lumbar lordosis measurement was performed by Baseline Bubble Inclinometer while diastasis recti abdominis (DRA) measurement was carried out by finger-width method. Manual muscle test for rectus abdominis and right and left external oblique abdominal muscles, and Benign joint hypermobility test with Beighton scoring method were also applied as musculoskeletal measurements. Tape measurement at the waist, umbilical and hip levels, caliper with bi-iliac and bi-trochanteric diameters were also recorded as anthropometric measurements. RESULTS: Significant associated factors for UI were: umbilical DRA (OR = 1.57; p = .012); rectus abdominis muscle strength (values of 3 and below, OR = 1.2; p = .014); umbilical environment (OR = 1.1; p = .029); bi-iliac diameter (OR = 1.1; p = .05;) and bi-trochanteric diameter (OR = 1.3; p = .05), respectively. CONCLUSION: Changing musculoskeletal and anthropometric characteristics of pregnant women should be taken into consideration in UI follow-up during pregnancy.

Trimester-based changes in urogenital symptoms and their impact on the quality of life in pregnant women: A preliminary report.

BACKGROUND: This study is aimed to determine the trimester-based changes in urogenital symptoms and their impact on the quality of life in pregnant women. MATERIALS AND METHODS: Fifty-one pregnant women participated in this study. Self-reported symptom-based questionnaires, Urogenital Distress Inventory-Short Form (UDI-6), Incontinence Severity Index (ISI), and Incontinence Impact Questionnaire (IIQ-7) were administered to determine urogenital symptoms, incontinence severity, and the quality of life in all participants in the first, second, and third trimesters. The findings obtained were analyzed with the Friedman and Spearman tests. RESULTS: Irritative (urgency and frequency) and stress incontinence symptoms showed statistically significant changes (p < 0.05), whereas obstructive and genital pain/discomfort symptoms did not significantly change (p > 0.05) according to the scores of UDI-6 subscales over the trimesters. There were negative, weak-moderate correlations between stress incontinence symptoms and IIQ-7 in the first, second, and third trimester. There was a negative, moderate correlation between irritative symptoms and IIQ-7 only in the third trimester, but there were not any correlations between the other urogenital symptoms and IIQ-7 (p > 0.05). In the prepregnancy period, stress urinary incontinence (SUI) and urge urinary incontinence (UUI) occurred in 9.8% and 7.8% of the patients, respectively, whereas there were no women with mixed urinary incontinence (MUI) preconceptionally. The presence of SUI, UUI, and MUI were 13.7%, 7.8%, and 0% in the first, 26%, 9.8%, and 3.9% in the second, and 41.2%, 27.5%, and 13.7% in the third trimester, respectively. ISI scores showed statistically significant changes in the first, second, and third trimesters of women with SUI, UUI, and MUI (p < 0.05). Statistically significant differences were also found in UDI-6 and IIQ-7 scores obtained from all three trimester evaluations of pregnant women with SUI, UUI, and MUI (p < 0.05). CONCLUSIONS: Urogenital symptoms associated with urinary incontinence such as frequency, urgency, and stress incontinence were found to be increased over the course of the three trimesters of the pregnancy and the quality of life was negatively affected. Special care is essential for urinary incontinence during antenatal care.

Relationship of Cholelithiasis and Urolithiasis with Methylenetetrahydrofolate Reductase Polymorphisms.

AIM: To investigate the relationship of cholelithiasis and urolithiasis with Methylenetetrehydrofolate Reductase (MTHFR) polymorphism(s) in patients with poor obstetric history to search whether they are risk factors for adverse pregnancy outcome. MATERIALS AND METHOD: This study is consisted of 94 patients with poor obstetric history. Patients were evaluated in terms of the presence of cholelithiasis and urolithiasis in association with MTHFR polymorphism(s). Additional laboratory tests including homocysteine measurements were also performed. ROC analysis for assessing the performance of blood homocysteine level in predicting the presence of cholelithiasis and urolithiasis were also performed. RESULTS: Patients were divided into three groups such as cholelithiasis group (n = 9, 9.6%), urolithiasis group (n = 18, 19.1%) and control group (n = 67, 71.3%). Groups did not differ in term of age and Beksac obstetrics index (BOI) which is "[living child+(π/10)]/gravidity." The rate of the presence of MTHFR polymorphisms were 88.9% (8/9), 88.9% (16/18) and 43.3% (29/67) in cholelithiasis, urolithiasis and control groups respectively. Median homocysteine levels were found to be 13.1, 11.6 and 7.2 micromol/lt for the groups respectively. Statistically significant differences were found for MTHFR polymorphism rates and homocysteine levels (<0.001 for both). According to ROC analysis, 10.9 mcmol/L (88.9% sensitivity, 89.6% specificity) and 9.25 mcmol/L (83.3% sensitivity, 73.1% specificity) were determined to be cutoff values of homocysteine for cholelithiasis and urolithiasis respectively. CONCLUSION: More frequent MTHFR polymorphisms are observed in women with a clinical history of gall or renal stones. Thus, screening of these patients may be benefical for the approprate management of their subsequent pregnancies.

Fetal Cell Microchimerism; Normal and Immunocompromised Gestations in Mice.

Objective: To compare fetal cell microchimerism in normal and immunocompromised gestations. Materials and methods: The study consists of two groups of mature female mice. In the control group and the immunocompromised study group, 5 mg of saline and cyclosporine were injected intraperitoneally, respectively. In the second step, all female mice were mated with "Actine-Luc (+) green fluorescent protein (GFP)" transgenic male mice. Immunohistochemical studies (ALPL-antiluciferase, cytokeratin-antiluciferase, and CD 105-antiluciferase) were carried out on maternal liver, skin, and lung tissues at 6-7th and 14-15th gestational days, and postpartum 3-4th, 12th, and 18-24 months. Results: GFP (+) cells were detected in maternal liver and skin but not in lung tissue. Liver was the most affected tissue. GFP was found to be more intense in the immunocompromised group. Conclusion: Fetal microchimerism was demonstrated in maternal liver and skin and found to be more intensive in the immunocompromised group.

Location and Frequency of Residual Breast Tissue after Mastectomy.

INTRODUCTION: Residual breast tissue after mastectomy is a problem since breast cancer can arise from it. The aim of this study was to investigate the incidence and location of residual breast tissue following modified radical mastectomy. METHODS: 111 consecutive breast cancer patients who underwent mastectomy were enrolled in this study. During surgery, after removal of the breast tissue and before skin closure, a 1-cm2 tissue sample was obtained from each quadrant under the skin flaps. These samples were evaluated histopathologically for the presence of any residual breast tissue. RESULTS: Residual breast tissue was detected in the tissue samples of 12/111 (10.8%) patients. 4 of these patients had residual breast tissue in all 4 quadrants. 6 patients had residual tissue in a single quadrant. With 9 positive biopsy results, the upper medial quadrant was the most frequently involved location. The other quadrants had 6 positive biopsy results each. At the end of a median of 20 months of follow-up, none of these patients developed breast cancer recurrences. CONCLUSION: Mastectomy has a high probability of residual breast tissue being left behind. Physicians should be aware of this and act accordingly when planning surgical or follow-up treatment.

A Serous Peritoneal Cancer Revealing Itself With Double Breast Cancer Metastases in 2 Different Periods.

A 72-year-old woman presented with a mass on the right axilla. This was thought to be an occult breast cancer case, and the patient was treated with modified radical mastectomy, followed by hormonotherapy. Two years later she presented with incarcerated umbilical hernia. Pathology revealed Sister Mary Joseph's nodule inside the hernia sac. Further evaluation revealed that the primary tumor was papillary serous carcinoma of the peritoneal surface. The patient received adjuvant chemotherapy. Two years later the metastatic tumor was located on the other breast. The disease progressed gradually, and the patient eventually died from disseminated disease. This case is extraordinary in that it first presented with axillary metastasis without abdominal involvement and then later metastasized to the other breast after a long disease-free period.

Undifferentiated Embryonal Sarcoma of the Liver in an Adult Patient.

An undifferentiated embryonal sarcoma of the liver (UESL) is a rare and highly malignant mesenchymal neoplasm that is uncommonly observed in adults. We report a case of UESL found in a 26-year-old female. Our case was initially regarded as a type II hydatid cyst and then a malignant mass in radiological studies. The patient underwent nonanatomic liver resection. There were postoperative complications, but they were handled successfully. The patient received taxol-cisplatin-ifosfamide chemotherapy protocol and is disease-free after six years. Although UESL is exceedingly rare in adults, it must be considered while evaluating large hepatic masses since curative resection has an excellent prognosis.

Hemorrhoids and related complications in primigravid pregnancy / Hemorroidas e complicações relacionadas na gestação de primigestas

ABSTRACT Purpose: To identify the effect of pregnancy on the development of external hemorrhoids and constipation. Subjects and methods: This pilot study involved 61 primigravid women without a history of perianal diseases. Each patient was examined and filled a questionnaire between the 11th and 14th gestational week prior to prenatal screening tests. Patients were re-examined and questioned in relation to perianal symptoms and hemorrhoidal changes again in the 24th and 37th gestational weeks. Results: A total of 5, 8, and 11 women had symptomatic external hemorrhoids with or without perianal complications in the 11-14th, 24th, and 37th gestational weeks, respectively. Meanwhile, 27, 25, and 29 women complained about constipation in the 11-14th, 24th, and 37th gestational weeks, respectively. Only 4 (6.6%) patients experienced painful hemorrhoids. The overall morbidity rate was 18% (11 cases). We found a statistically significant relationship between external hemorrhoids/perianal complications and gestation-induced constipation through logistic regression analysis (p < 0.001). Conclusion: Various risk factors and biological explanations exist for the high frequency of hemorrhoids during pregnancy. Because participants were primigravid women without a history of perianal complaints, findings suggest a direct effect of pregnancy itself on the development of external hemorrhoids/perianal symptoms.

RESUMO Objetivo: Identificar o efeito da gestação sobre o desenvolvimento de hemorroidas externas e obstipação. Indivíduos e métodos: Este estudo piloto envolveu 61 mulheres primigestas sem história de doenças perianais. Cada paciente foi examinada e preencheu um questionário entre a 11ª e a 14ª semanas de gestação antes dos exames de triagem pré-natal. As pacientes foram reexaminadas e questionadas sobre sintomas perianais e mudanças hemorroidais novamente na 24ª e 37ª semanas de gestação. Resultados: Um total de 5, 8 e 11 mulheres apresentaram hemorroidas externas sintomáticas com ou sem complicações perianais na 11-14ª, 24ª e 37ª semanas de gestação, respectivamente. Enquanto isso, 27, 25 e 29 mulheres queixaram-se de obstipação na 11-14ª, 24ª e 37ª semanas de gestação, respectivamente. Apenas 4 (6,6%) pacientes apresentaram hemorroidas dolorosas. A taxa global de morbidade foi de 18% (11 casos). Encontramos uma relação estatisticamente significativa entre hemorroidas externas/complicações perianais e obstipação induzida por gestação por meio de análise de regressão logística (p < 0,001). Conclusão: Existem vários fatores de risco e explicações biológicas para a alta frequência de hemorroidas durante a gravidez. Como os participantes eram mulheres primigestas sem história de queixas perianais, os achados sugerem um efeito direto da gestação em si sobre o desenvolvimento de hemorroidas externas/sintomas perianais.

Treatment of Rectovaginal Fistula Using Sphincteroplasty and Fistulectomy.

AIM: To assess the results of the treatment of rectovaginal fistulas with incontinence and impaired anal tonus. MATERIALS AND METHODS: This study comprised three rectovaginal fistula groups that were treated using sphincteroplasty and fistulectomy: group 1: eight women with simple rectovaginal fistula due to birth trauma; group 2: six rectovaginal fistula cases that were associated with chronic inflammatory diseases; and group 3: five cases with at least one failed repair attempt. In the second step, operations that took place before the year 2000 were compared to the operations that took place after the year 2000 in terms of demographic and clinical characteristics. RESULTS: All of the simple rectovaginal fistula cases healed after the operation. Five of the group 2 patients healed after the operation. However, 1 patient with Crohn's disease needed to undergo reoperation, but successfully healed after 6 months. On the contrary, 3 patients in group 3 healed (60%) whereas 2 of them failed to heal. Clinical characteristics of the patients were different between the groups (before and after the year 2000). CONCLUSION: The choice of operation must be done according to the patient's underlying pathology. Proper management of associated inflammatory diseases and systemic disorders is recommended for necessary complex cases.

Pregnancy in papillary thyroid cancer survivors

OBJECTIVE: To evaluate "papillary thyroid carcinoma-pregnancy" interaction among cancer survivors. MATERIAL AND METHODS: The clinical records of 8 pregnant women who received treatment for papillary thyroid cancer before their pregnancy were evaluated. Clinical features, pregnancy/perinatal outcomes and high-risk factors were compared with 45 controls who were randomly assigned from the institutional perinatal medicine database. RESULTS: Patients in the cancer group were older than the control group (34.3 vs 29.8 years). The cesarean section rate was higher (62.5% vs 33.3%) and the APGAR scores at the 1st and 5th minutes were lower in the cancer group. CONCLUSION: Management of pregnancies with papillary thyroid cancer treatment and follow-up requires a multidisciplinary approach with careful antenatal care and perinatal surveillance. Patients who have received papillary thyroid cancer treatment can safely undergo pregnancy.

Chemotherapy during Pregnancy: Cases of Hodgkin's and Non-Hodgkin's Lymphoma, Chronic Myeloid Leukemia, Breast Cancer, Nasopharyngeal Cancer, and Choriocarcinoma.

BACKGROUND: The use of chemotherapeutics during pregnancy is a dilemma for both the patient and the clinician. We report here our 11 years' experience with the use of chemotherapy during pregnancy. PATIENTS: 13 patients undergoing chemotherapy during their current pregnancy were evaluated. The medical data of 5 patients with hematologic malignancies (2 Hodgkin's, 2 non-Hodgkin's lymphoma, and 1 chronic myeloid leukemia), 6 patients with breast cancer, 1 patients with nasopharyngeal cancer, and 1 patient with choriocarcinoma were retrospectively obtained from the 'perinatal database' of Hacettepe University for the period of January 2002 through March 2016. RESULTS: 4 patients had a medical termination due to teratologic effects. 4 patients had a vaginal delivery, and 5 patients delivered by caesarean section. The 9 newborns who had been exposed to chemotherapeutics were free of congenital anomalies. However, 1 of them died in the early neonatal period due to multi-organ failure (nasopharyngeal cancer). During the 2-year follow-up, we encountered 1 maternal mortality, which was due to multi-organ failure in a non-Hodgkin's lymphoma patient. CONCLUSION: Physicians must pay attention to potential teratologic problems, and should carefully balance maternal and fetal risks. Selected chemotherapeutic agents can be given in the 2nd and 3rd trimester without any major teratogenic risk. All 9 newborns in our study were free of anomalies, although 1 of them died in the neonatal period.

Malignancy in Solitary Thyroid Nodules: Evaluation of Risk Factors.

BACKGROUND: The aim of the present study was to evaluate patients with suspicious solitary nodules undergoing bilateral total thyroidectomy for the presence of malignancy. PATIENTS AND METHODS: 141 patients with true solitary thyroid nodules who underwent bilateral total thyroidectomy at the Dr. Abdurrahman Yurtaslan Ankara Oncology Hospital between 2008 and 2013 were retrospectively evaluated. Parameters including demographics, ultrasonographic findings, and laboratory values were analyzed. RESULTS: When the final pathology results were evaluated, malignancy was found in 52/141 (36.9%) patients. 49 (94.2%) of these lesions were papillary carcinoma. Colloidal nodules accounted for 30.3% of all benign cases. Nodular irregularity, increased vascularity, microcalcification, and central/lateral lymphadenopathy significantly increased the risk of malignancy. Among these factors, increased vascularity was the most important risk factor and microcalcification the second. Nodule size did not affect the risk of malignancy. CONCLUSION: Irregular borders, microcalcification, increased vascularity, and detection of cervical lymphadenopathy were found to be correlated with malignancy in solitary nodules.

Retrospective evaluation of pregnant women with celiac disease.

OBJECTIVE: To show celiac disease (CD) and its poor pregnancy outcome relationship, and to demonstrate the importance of a gluten-free diet together with low-dose low-molecular-weight heparin (LMWH) and low-dose corticosteroid (LDC) in the management of pregnancies with CD. MATERIAL AND METHODS: This study consisted of 2 groups of patients. Six patients with CD (control group) on a gluten-free diet were monitored during their first pregnancies within the framework of antenatal care program and their pregnancy outcomes were compared with eight poorly-treated pregnant patients with CD (study group) who were referred from other medical institutions. LMWH (enoxaparine 1x2000 Anti-XA IU/0.2 mL/day), and LDC (methylprednisolone 1x4 mg p.o/day) were used in the control group. Their obstetric histories and outcomes of their last pregnancies were compared. The patients' obstetric risk levels were evaluated using the "Beksac Obstetrics Index" (BOI). RESULTS: There were miscarriages in 50% of the study group. There were also 50% and 75% preterm deliveries in the control and study groups, respectively. The BOI of the study group was significantly worse than the control group (1.31 vs. 0.31±0.21, p<0.01). There were no statistically significant differences between age (24±4.7 vs 31.7±6 years, p=0.448), gestational day of birth (259.3±8.5 vs 246.6±24.3), birthweight (2691±698 vs 2262±359 g, p=0.394), and cesarean section rates (p=0.118). CONCLUSION: CD is a risk factor for adverse pregnancy outcome. Miscarriage and preterm labor are critical complications in pregnancies complicated by CD. A gluten-free diet is important in the treatment. LMWH and LDC seem to be helpful in the management of pregnant women with CD.

Giant retroperitoneal dedifferentiated liposarcoma.

INTRODUCTION: Liposarcoma is the most frequent type of retroperitoneal sarcomas. Dedifferentiated liposarcoma is the least common subtype and is an extremely rare tumor. CASE REPORT: We present the case of a 53-year-old male who was referred with a giant retroperitoneal mass. The patients' mass was deemed unresectable by the previous institution and received chemotherapy with no benefit. We macroscopically removed the 38x32 cm mass with right nefrectomy. Pathological examination revealed dedifferentiated liposarcoma. CONCLUSION: Surgery is the gold standart in the treatment of retroperitoneal sarcomas. Giant masses present a challenge for the surgeon with possible major vascular injuries and multiorgan resections. Therefore it is important for these patients to be referred for surgery without delay. KEY WORDS: Dedifferentiated liposarcoma, Liposarcoma, Retroperitoneal sarcoma.

Risk Factors for Conversion of Laparoscopic Cholecystectomy to Open Surgery: A New Predictive Statistical Model.

INTRODUCTION: Although laparoscopic cholecystectomy is currently the standard treatment for benign gallbladder pathologies, some cases still require conversion to open cholecystectomy. Since open cholecystectomy has a significantly higher morbidity rate and a lengthier stay in the hospital compared with laparoscopic surgery, predicting this conversion would grant a great advantage in the management of cholecystitis. Therefore, in this study, we aimed to develop a predictive statistical model. MATERIALS AND METHODS: Between August 2006 and January 2011, 1335 laparoscopic cholecystectomies were initiated at the General Surgery Department of Hacettepe University. One hundred four of these cases were started as laparoscopic surgeries, but converted to open cholecystectomies. In our study, we randomly chose 104 laparoscopically completed cases and compared them with the 104 converted cases. We used 31 parameters, including demographics, ultrasonographic findings, and laboratory values, to compare groups. These parameters were later included in a logistic regression analysis to create a statistical model that predicts conversion to open cholecystectomy. RESULTS: Among the 1335 laparoscopically started cases, 104 (7.7%) were converted to open surgery. In our study, we found age, gender, ultrasonographic findings of acute cholecystitis, history of choledocolithiasis, history of abdominal surgery, and alkaline phosphatase (ALP) levels to be significant risk factors. By using a receiver operating characteristic curve, we found that the risk significantly increases after 55 years of age and an ALP over 80 IU/L. DISCUSSION: Using four parameters-age, gender, history of abdominal surgery, and ALP-in our statistical model, we were able to predict the conversion from laparoscopic to open cholecystectomy with 70% sensitivity and 79% specificity.

Evaluation of proinflammatory cytokine and neopterin levels in women with papillary thyroid carcinoma.

INTRODUCTION: Papillary thyroid cancer is a disease that has been associated with chronic inflammation. The purpose of this study is to measure the production of the proinflammatory cytokines IL-1ß, IL-6 and IL-8 and neopterin, which is a novel biomarker for cellular immune response in papillary thyroid cancer. MATERIALS AND METHODS: The serum IL-1ß, IL-6, IL-8 and neopterin values of 31 papillary thyroid cancer patients undergoing bilateral total thyroidectomy were measured before and 20 days after surgery. The values were compared with those of 39 healthy controls. RESULTS: Serum IL-1ß levels were similar across groups. IL-6 (p<0.001), IL-8 (p = 0.015) and neopterin levels (p = 0.002) were higher in presurgical samples and returned to normal following surgery. CONCLUSIONS: The proinflammatory cytokines IL-6 and IL-8, but not IL-1ß, were produced in greater amounts in papillary thyroid cancer. Serum neopterin seems to be a valid biological marker supporting the presence of papillary thyroid cancer.