Elective bladder preservation with multimodality treatment for bladder cancer

PURPOSE

To observe the outcome of maximal transurethral resection of bladder tumor (TURBT) followed by induction chemotherapy and concurrent chemoradiotherapy in medically inoperable patients with bladder cancer.

METHODS

This study included 30 patients with stage T 2-4 bladder cancer. The patients were first treated with TURBT, and then received 2 cycles of induction chemotherapy with gemcitabine and cisplatin, followed by concurrent chemoradiotherapy with gemcitabine.

RESULTS

Median follow up was 28.9 months. Radiologically, complete and partial response rates were 60 and 36.7%, while cystoscopically they were 40 and 30%, respectively. Local progression (4 cases) and distant metastasis (11 cases) were noted. Median overall survival and progressionfree survival were 32 and 21 months, respectively. One -and 2-year overall survival and progression-free survival rates were 97.60% and 83.49%, respectively.

CONCLUSION

The multimodal treatment performed in this study was well tolerated and achieved a high rate of bladder preservation in selected patients with bladder cancer.

Evaluation of vascular smooth muscle and corpus cavernosum on hypercholesterolemia. Is resveratrol promising on erectile dysfunction?

The aim of this study is to evaluate the effects of hypercholesterolemia in thoracic aorta (TA), mesenteric artery (MA), renal artery (RA), and corpus cavernosum (CC) isolated from cholesterol-fed rabbits. For determination of the maximum detrimental effect, vasorelaxation and vasoconstriction results of arteries and CC have been compared. Animals were fed with a diet that contained 2% w/w cholesterol and 2% w/w high cholesterol plus resveratrol (4 mg kg(-1) per day) for 6-week duration. Total cholesterol levels in the plasma were measured. Vascular and endothelial functions in RA, TA, MA, and CC were assessed by isolated tissue bath with cumulative doses of acetylcholine and sodium nitroprusside. The statistical significance of differences of groups was analyzed by means of one-way ANOVA or Student's t-test. P-values <0.05 were considered significant. There have been no significant changes on plasma total cholesterol levels between cholesterol and cholesterol + resveratrol-treated groups. Vasorelaxation responses to acetylcholine in resveratrol-treated group showed significant changes when compared with hypercholesterolemic group. No statistically significant differences were seen between non-receptor-mediated vasorelaxation responses between the three groups. Resveratrol might be an effective treatment in the prevention of atherosclerotic changes in arteries and CC. The initial effects of hypercholesterolemia on erectile dysfunction and endothelial dysfunction may be precluded with resveratrol. This protective effect may also ensure the prevention of coronary arterial diseases and renovascular diseases in hypercholesterolemic patients.

Effects of land-use changes on landslides in a landslide-prone area (Ardesen, Rize, NE Turkey)

Various natural hazards such as landslides, avalanches, floods and debris flows can result in enormous property damages and human casualties in Eastern Black Sea region of Turkey. Mountainous topographic character and high frequency of heavy rain are the main factors for landslide occurrence in Ardesen, Rize. For this reason, the main target of the present study is to evaluate the landslide hazards using a sequence of historical aerial photographs in Ardesen (Rize), Turkey, by Photogrammetry and Geographical Information System (GIS). Landslide locations in the study area were identified by interpretation of aerial photographs dated in 1973 and 2002, and by field surveys. In the study, the selected factors conditioning landslides are lithology, slope gradient, slope aspect, vegetation cover, land class, climate, rainfall and proximity to roads. These factors were considered as effective on the occurrence of landslides. The areas under landslide threat were analyzed and mapped considering the landslide conditioning factors. Some of the conditioning factors were investigated and estimated by employing visual interpretation of aerial photos and topographic data. The results showed that the slope, lithology, terrain roughness, proximity to roads, and the cover type played important roles on landslide occurrence. The results also showed that degree of landslides was affected by the number of houses constructed in the region. As a consequence, the method employed in the study provides important benefits for landslide hazard mitigation efforts, because a combination of both photogrammetric techniques and GIS is presented.

Blink reflex alterations in diabetic patients with or without polyneuropathy

The main aim of this study is to evaluate the role of blink reflex for early diagnosis of cranial neuropathy in diabetic patients with or without polyneuropathy. Ninety-five diabetic patients were included in the present study for the evaluation of blink reflex. The diabetic patients were divided into two groups according to having diabetic neuropathy or not. Both R1, R2i and R2c latencies in all diabetic patients with or without polyneuropathy were prolonged relative to controls and the differences were statistically significant (p < .001). R1 latencies in diabetic patients with polyneuropathy were prolonged relative to diabetic patients without polyneuropathy and the differences were statistically significant (p < .001). These findings presumably reflect that facial nerve is severly involved in diabetic polyneuropathy. Finally blink reflex is of value in detection of clinically silent intraaxial brainstem functional abnormalities or extraaxial lesions in diabetic patients before peripheral neuropathy.

Serum and BAL cytokine and antioxidant enzyme levels at different stages of pneumoconiosis in coal workers

Coal workers’ pneumoconiosis (CWP) is an occupational pulmonary disease that occurs by chronic inhalation of coal dust. CWP is divided into two stages depending on the extent of the disease, as simple pneumoconiosis (SP) and progressive massive fibrosis (PMF). In the present study, serum and bronchoalveolar lavage (BAL) cytokine (interleukin-1β [IL-1β], IL-6, tumor necrosis factor-α [TNF-α], transforming growth factor-β [TGF-β]) and antioxidant enzymes levels, their relation with the disease severity, and whether they can be considered as biological markers were investigated. Serum and BAL levels of IL-1β, IL-6, and TNF-α were higher in SP and PMF patient groups compared with that in active and retired miner groups. Serum and BAL IL-1β, IL-6, and TNF-α levels were also found to be higher in patients with PMF compared with the SP group. BAL superoxide dismutase (SOD), glutathione peroxidase, and catalase levels and serum SOD level were increased in both patient groups compared with the control group. In addition, mean serum and BAL TGF-β levels were found to be increased in patients with SP compared with PMF group. Based on these results, BAL and serum cytokine and antioxidant enzymes levels were evaluated and discussed as potential biomarkers for different stages of CWP.

Results of postoperative radiotherapy in the treatment of uterine sarcomas: a retrospective analysis of 46 patients

PURPOSE

The aim of this study was to evaluate treatment outcome, survival data and prognostic factors in patients with uterine sarcoma treated by postoperative radiotherapy.

MATERIALS AND METHODS

The records of 46 patients treated between 1993 and 2003 were reviewed. Median age was 55 (range 31-75). There were 21 mixed mullerian tumors, 12 leiomyosarcomas, 11 endometrial stromal sarcomas and two adenosarcomas. According to FIGO classification 65.2% were Stage I, 17.4% Stage II, 13% Stage III and 4.3% Stage IV. All patients received external radiotherapy with 1.8 Gy daily fractions up to 50.4-64 Gy (median 50.4 Gy). Intracavitary brachytherapy was applied to 39 patients. Twelve patients received adjuvant chemotherapy.

RESULTS

Median follow-up time was 48 months (6-144 months). Seventeen patients (37%) developed distant metastases and one patient had local failure. Five-year overall, disease-free and local recurrence-free survival rates were 57.8%, 60.5% and 97.8%, respectively. Univariate analysis demonstrated that stage (p = 0.011), histologic subtype (p = 0.010), tumor size (p = 0.044), positive peritoneal cytology (p = 0.006) and the use of chemotherapy (p = 0.005) had a significant effect on overall survival. Prognostic factors influencing disease-free survival were stage (p = 0.009), positive peritoneal cytology (p = 0.000) and the use of chemotherapy (p = 0.002). The only prognostic factor affecting local control was stage (p = 0.000).

CONCLUSION

Postoperative radiotherapy seems to be an effective adjuvant treatment providing high local control rates in uterine sarcomas. However its efficacy should be clarified by randomized trials. The important prognostic factors influencing the treatment results were stage, histologic subtype, tumor size and positive peritoneal cytology.

Outcome of metastatic non-small cell lung carcinoma patients receiving docetaxelcisplatin combination chemotherapy: single institution experience

PURPOSE

Despite advances in the detection and treatment, the long-term survival of patients with advanced nonsmall cell lung cancer (NSCLC) remains poor, with a 5-year overall survival (OS) of less than 5%. We conducted this observational study to determine the influence of docetaxel plus cisplatin combination chemotherapy on response, time to progression (TTP) and OS, and to evaluate its tolerability in chemotherapy-naïve patients with metastatic NSCLC.

PATIENTS AND METHODS

Patients with histologically or cytologically confirmed stage IV NSCLC who met the following criteria were eligible for the study: no previous chemotherapy, Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0-2, objectively measurable disease, adequate bone marrow reserve, normal hepatic and renal function. Patients received docetaxel 75 mg/m(2) and cisplatin 75 mg/m(2), both given on day 1. Cycles were repeated every 3 weeks and a total of 4-6 cycles were scheduled to be administered.

RESULTS

50 consecutive eligible patients were enrolled into the study. Median follow-up time was 6 months (range 1-21). Median age was 61.5 years (range 39-75). Forty-eight (96%) patients were male. Histological type was squamous cell carcinoma in 21 (42%) patients, adenocarcinoma in 11 (22%) and undifferentiated carcinoma in 18 (36%). The median OS time was 16 months (range 7.1-24.9; 95% CI: 8-24). One-year OS was 56.3%. Overall response rate was 44% with 40% partial (PR) and 4% complete responses (CR). Twenty-eight percent of patients had stable disease (SD) and 28% progressive disease (PD). The median TTP was 4 months (range 2-13; 95% CI: 2.4-5.5).

CONCLUSION

Docetaxel/cisplatin combination demonstrated efficacy comparable to other platinum-containing doublets.

The combined use of brachial artery flow-mediated dilatation and carotid artery intima-media thickness measurements may be a method to determine vasculogenic erectile dysfunction

The aim of this study was to investigate the relationship between penile color Doppler sonography (CDS) findings and sonographic endothelial parameters in patients with erectile dysfunction (ED), including intima-media thickness (IMT) of common carotid arteries (CCA) and flow-mediated dilatation (FMD) of brachial artery. Fifty-six ED patients were included in the study. Penile CDS, IMT of CCA and FMD of brachial artery were performed in all patients. According to penile CDS findings, 27 (48%) patients had non-vasculogenic and 29 (52%) patients had vasculogenic ED. Among 29 patients, 17 (30%) patients had cavernous veno-occlusive disease (CVOD) and 12 (22%) patients had arterial/combined insufficiency (AI). Median (interquartile range) FMD values of non-vasculogenic ED, CVOD and AI were 12.50 (6.54)%, 12.82 (7.41)% and 6.25 (7.17)%, respectively. FMD was found to be impaired significantly in AI group when compared to the other groups. FMD values of CVOD group were lower when compared to non-vasculogenic group, but the difference was not statistically significant. IMT values of vasculogenic ED patients were higher than non-vasculogenic ED patients (P<0.05). Although IMT values were higher in AI group when compared to CVOD, the difference was not statistically significant. The combined use of IMT and FMD established the diagnosis of vasculogenic ED with 100% sensitivity and 59.2% specificity. The positive predictive value was 72%, negative predictive value 100% and accuracy 80%. The combined use of brachial artery FMD and carotid arteries IMT measurements may be suggested as an alternative method to evaluate vasculogenic ED.

Outcome of non small cell lung carcinoma patients receiving chemotherapy in Kartal State Hospital, Turkey

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Background: Lung cancer has been the leading cause of cancer deaths in men worldwide, and is the second most common cause of cancer deaths in women. Non-small cell histology comprises about 70–80% of every diagnosis of lung cancer. Despite advances in the detection and treatment, the long-term survival of patients with advanced non-small cell lung cancer (NSCLC) remains poor, with a 5-year survival of less than 5%. We conducted this trial to determine the influence of treatment with docetaxel given in combination with cisplatin on survival and time to progression, and to evaluate its tolerability in chemotherapy naive patients with metastatic NSCLC. Methods: Patients with histological or cytological confirmed stage IV NSCLC who met the following criteria were eligible for the study: suitable for first-line chemotherapy with no previous chemotherapy, Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0–2, an objective measurable disease, an adequate bone marrow reserve, a normal hepatic and renal function. Cisplatin and docetaxel were delivered to the patients at one dose level through the courses repeated every 3 weeks for 4–6 cycles. Each patient received docetaxel at the doses of 75 mg/m2/day and cisplatin at the doses of 75 mg/m2/day both on day 1. Results: Fifty eligible patients with stage 4 NSCLC were enrolled into the study from June 2003 to September 2005. Median follow-up time was 6 months (1–21). Median age was 61.5 (39–75). Forty eight patients (96%) were male, and 2 patients (8%) were female. Histological type was squamous cell carcinoma in 21 patients (42%), adenocarcinoma in 11 patients (22%) and undifferentiated histologies in 18 patients (36%). The median overall survival time was 16 months (95%CI: 8–24). One-year survival rate was 56.3%. Overall response rate was 44% with 40% partial (PR), 4% complete response (CR). Twenty eight percent of patients had stable disease, and 28% of patients showed disease progression. The median time to progression was 4 months (95%CI: 2.4–5.5). Conclusion: Docetaxel/cisplatin demonstrated efficacy comparable to other platinum agent doublets.

No significant financial relationships to disclose.

Characteristics of vascular involvement in Behçet's disease

OBJECTIVE

Behçet's disease (BD) is a multisystemic inflammatory disorder classified among the vasculitides, which can affect all types and sizes of blood vessels. Vascular involvement may be seen in 25-50% of BD patients. In this study, we examined the characteristics of vascular involvement in patients with BD.

METHODS

One hundred and eighty patients with BD were included in the study. The diagnosis of vascular involvement was made on clinical signs, by Doppler ultrasonography and/or angiography using computed tomographic or magnetic resonance techniques where appropriate. Detailed clinical characteristics were recorded for each patient.

RESULTS

Seventy-one patients (39.4%) had vascular involvement. In patients with vascular lesions, the frequency of male sex was significantly higher than in patients without vascular lesions (89.8% vs. 63.3%, respectively; p < 0.001). Of 71 BD patients with vascular involvement, 68 had venous lesions (95.8%). Three patients had arterial lesions without venous thrombosis. Eleven patients had arterial involvement with venous thrombosis. The most frequent type of vascular involvement was deep venous thrombosis in the lower extremities (n = 56, 78.9%). There was a significant association between deep venous thrombosis and superficial thrombophlebitis (r = 0.325, p < 0.01). Twenty-four patients (33.8%) had vena cava thrombosis and two had vena hepatica thrombosis. In patients with vascular involvement, the frequency of erythema nodosum was significantly higher (p = 0.001) and the frequency of ocular involvement was significantly lower (p < 0.05) than in patients without vascular involvement.

CONCLUSION

Our study illustrates the frequency and significance of vascular involvement in BD.