BACKGROUND: Bone scan is a sensitive but not specific method for evaluation of bone metastases. However, the clinicaldata and the pattern of bone scan findings help the physician to narrow the diagnostic differentials. We tried to investigate the distribution of bone metastases in common cancers using bone scintigraphy. MATERIAL AND METHODS: 160 consecutive patients with malignancy (prostate cancer: 32, breast cancer: 107, lung cancer:8, and gastrointestinal cancers: 13) underwent bone scan. RESULTS: From the 160 patients, 58 patients (36.3%) had abnormal bone scans attributable to metastatic tumor. Bonemetastases were found in 32.7%, 40.6%, 38.5% and 62.5% of patients with breast, prostate, GI and lung cancers, respectively (P = 0.35). The most frequently involved area was the spine, followed by ribs and pelvic bones. Spine was the most frequentsite of bone metastases in breast and GI cancers. Except forthe spine, common locations of bone metastases from breastcancer were ribs and sternum. In prostate cancer, the most frequent site were spine and pelvis, with similar incidences. Inlung cancer, ribs followed by spine were most frequent sites ofbone metastases. 97 (60.6%) of the cancer patients studied hadsymptoms of bone pain. The highest incidence was associated with metastatic lesions in bone scan (P = 0.004). Significant correlation between location of bone pain and evidence of bone metastasis in the same region was noticed in the pelvis (P =0.001), skull (P = 0.04), sternum (P = 0.01), spine (P = 0.003) and femur (P < 0.001). CONCLUSIONS: Our results indicate that the spine and pelvisin prostate carcinoma and the spine, ribs and sternum in breastcarcinoma as well as ribs and spine in lung cancer are most frequently invaded. Bone pain in the skull, sternum, lumbar vertebrae, pelvis and proximal portion of femurs are more important to keep in mind for metastatic bone involvement. BACKGROUND: Bone scan is a sensitive but not specific method for evaluation of bone metastases. However, the clinicaldata and the pattern of bone scan findings help the physician to narrow the diagnostic differentials. We tried to investigate the distribution of bone metastases in common cancers using bone scintigraphy. MATERIAL AND METHODS: 160 consecutive patients with malignancy (prostate cancer: 32, breast cancer: 107, lung cancer:8, and gastrointestinal cancers: 13) underwent bone scan. RESULTS: From the 160 patients, 58 patients (36.3%) had abnormal bone scans attributable to metastatic tumor. Bonemetastases were found in 32.7%, 40.6%, 38.5% and 62.5% of patients with breast, prostate, GI and lung cancers, respectively (P = 0.35). The most frequently involved area was the spine, followed by ribs and pelvic bones. Spine was the most frequentsite of bone metastases in breast and GI cancers. Except forthe spine, common locations of bone metastases from breastcancer were ribs and sternum. In prostate cancer, the most frequent site were spine and pelvis, with similar incidences. Inlung cancer, ribs followed by spine were most frequent sites ofbone metastases. 97 (60.6%) of the cancer patients studied hadsymptoms of bone pain. The highest incidence was associated with metastatic lesions in bone scan (P = 0.004). Significant correlation between location of bone pain and evidence of bone metastasis in the same region was noticed in the pelvis (P =0.001), skull (P = 0.04), sternum (P = 0.01), spine (P = 0.003) and femur (P < 0.001). CONCLUSIONS: Our results indicate that the spine and pelvisin prostate carcinoma and the spine, ribs and sternum in breastcarcinoma as well as ribs and spine in lung cancer are most frequently invaded. Bone pain in the skull, sternum, lumbar vertebrae, pelvis and proximal portion of femurs are more important to keep in mind for metastatic bone involvement.

Breast-feeding initiation within the first half hour after birth is one of the World Health Organization recommendations. However, in most hospitals, mother-infant contact and breast-feeding initiation are delayed due to routine mother and infant care. This study aimed to determine the effect of mother-infant skin to skin contact (SSC) immediately after birth on the success rate and duration of the first breast-feeding. In this review, databases of PubMed, Scopus, Cochrane, Google Scholar, SID and Magiran and reference sections of relevant articles were searched for both Persian and English randomized clinical trials from 2000 to December 2017, using the keywords of "(Breast-feeding OR Lactation) AND (mother-infant SSC OR KMC) AND (breast-feeding success OR breast-feeding duration)". A total of nine trials were ultimately included. Data analysis was performed with Comprehensive Meta-analysis (CMA) software version 2. In total 597 participants were assigned to the intervention group and 553 participants were assigned to the comparison group. Quantitative analysis Based on mean differences or odds ratio showed that Mother-Infant SSC had a significantly positive effect on success in first breast-feeding (MD:1.90, 95%; CI 0.958-2.856; p = 0.00, OR: 2.771 95%; CI 1.587-4.838; p = 0.00) and first breast-feeding duration (MD:26.627 95%; CI 1.070-52.184; p = 0.041). Mother-infant SSC after birth has beneficial effects on breast-feeding and can increase the success rate and duration of the first lactation. Therefore, the results of this study can be used by healthcare providers in evidence-based decision-making about ways to increase breast-feeding rates.

Sentinel lymph node biopsy is emerging as a promising method for inguinal lymph node staging of penile squamous cell carcinoma. In the current systematic review we evaluated the accuracy of sentinel lymph node biopsy for inguinal lymph node staging of penile squamous cell carcinoma and studied possible influential factors. MEDLINE®, Scopus®, ISI®, Ovid SP®, Springer, ScienceDirect® and Google™ Scholar were searched by the key words "(penile OR penis) AND sentinel". No date or language limitation was imposed on the search and meeting abstracts were not excluded from analysis. A random effects model was used for statistical pooling. A total of 17 studies suitable for meta-analysis were detected. Three articles had 2 different subgroups of patients and each subgroup was considered as a separate study. Overall 18 studies (including the subgroups) were used for detection rate meta-analysis and 19 for sensitivity meta-analysis. The pooled detection rate was 88.3% (95% CI 81.9-92.6). Pooled detection rate of 90.1% (95% CI 83.6-94.1) was calculated for the studies using blue dye and radiotracer. The pooled sensitivity was 88% (95% CI 83-92). The highest pooled sensitivity (92% [95% CI 86-96]) was in the studies using radiotracer and blue dye, and recruiting only cN0 cases. Sentinel lymph node mapping in penile squamous cell carcinoma is a method with a high detection rate and sensitivity. Using radiotracer and blue dye for sentinel lymph node mapping and including only cN0 disease ensures the highest detection rate and sensitivity.

The aim of the present meta-analysis is to compare the efficacy of cyclopentolate and tropicamide in controlling accommodation during refraction. A comprehensive literature search was performed in PubMed, Scopus, Science direct and Ovid databases by the key words: "tropicamide"; "cyclopentolate"; "cycloplegia" and "cycloplegic" from inception to April 2016. Methodological quality of the literature was evaluated according to the Oxford Center for Evidence Based Medicine and modified Newcastle-Ottawa scale. Statistical analyses were performed using Comprehensive Meta-Analysis (version 2; Biostat Inc., USA). The present meta-analysis included six studies (three randomized controlled trials and three case-control studies). Pooled standardized difference in the mean changes in the refractive error was 0.175 D [lower and upper limits: -0.089; 0.438] more plus in the cyclopentolate group compared to the tropicamide group; however, this difference was not statistically significant (p=0.194; Cochrane Q value=171.72 (p<0.05); I2=95.34%). Egger's regression intercept was -5.33 (p=0.170). Considering type of refractive errors; refractive assessment procedure and age group; although cycloplegic effect of cyclopentolate was stronger than tropicamide; however, this effect was only statistically significant in children; hyperopic patients and with retinoscopy. We suggest that tropicamide may be considered as a viable substitute for cyclopentolate due to its rapid onset of action. Although these results should be used cautiously in infants and in patients with high hyperopia or strabismus when using tropicamide as the sole cycloplegic agent especially in situations that the findings are variable or there is no consistency between the examination results and clinical manifestations of the visual problems.