ObjectiveTo explore the clinical treatment measures and etiology analysis of lower urinary tract and penile foreign bodies. MethodsWe retrospectively analyzed the etiology and diagnosis of 48 cases of lower urinary tract and penile foreign body in the Department of Urology of our hospital between 1993 and 2012. ResultsNine bladder foreign bodies were removed successfully by using cystoscopy; nine were removed through suprapubic cystotomy; urethral foreign bodies in 10 patients were successfully taken out by urethrascope; five foreign bodies were extracted by hand and forceps; rubber bands in 2 patients were cut off under local anesthesia; fretsaw was used to cut through the nested rings in 7 patients; dental drill was used to cut nesting materials in 3 patients; and 3 patients underwent penis skin circumcision overturn stripping ring extraction. No complications after urethral foreign body extraction occurred. ConclusionThe lower urinary tract and penile foreign bodies are easy to diagnose, but patients often conceal the etiology, so the natural history collection is very important in the diagnosis, and doctors should take appropriate methods to remove the foreign body after the diagnosis is confirmed.
ObjectiveTo explore the association between wearing dentures and the risk of head and neck cancer using meta-analysis. MethodsPubMed, EMbase, CNKI, and WanFang Data were searched up to April 30th, 2014, for cohort studies and case-control studies about the association between wearing dentures and the risk of head and neck cancer. Literature screening according to the inclusion and exclusion criteria, data extraction and methodological quality assessment of included studies were completed by two reviewers independently. Then meta-analysis was conducted using Comprehensive Meta-Analysis v 2.2 software. ResultsEight case-control studies in 7 reports were finally included. The results of meta-analysis revealed that, low-degree association existed between wearing dentures and the risk of head and neck cancer (OR=1.08, 95%CI 1.00 to 1.16); and the results of further subgroup analysis (according to gender, cancer lesions, confounders adjustment, and publication years) also showed no significant difference. ConclusionWearing dentures is not significantly associated with the risk of head and neck cancer (no difference regarding gender or cancer lesions). Due to limitations of this meta-analysis, high-quality studies with large sample size are needed to further verify the above conclusion.