We report a case of a subperiosteal osteoid osteoma on the talar neck that was removed arthroscopically. Intralesional excision, en bloc resection, and percutaneous ablation techniques have all been used for the treatment of osteoid osteoma. For intra-articular osteoid osteomas, arthroscopy-assisted removal of the tumor has been described in a few case reports. Obtaining a nidus fragment for pathologic evaluation is important during arthroscopic removal of intra-articular osteoid osteomas. Sometimes it is not possible to obtain a specimen for pathologic examination. In the present case, the osteoid osteoma on the talar neck was easily located, the nidus was completely removed, and the tumor was extirpated. 相似文献
Malignant fibrous histiocytoma of bone is the osseous counterpart of the tumor in soft tissue. It is a rare primary bone tumor, and there have been conflicting reports on its grades of malignancy. The appendicular skeleton, especially the femur, is the most common site of involvement, whereas the calcaneus is rarely involved. We describe a primary malignant fibrous histiocytoma of the calcaneal bone in a 21-year-old man. The patient underwent neoadjuvant and adjuvant chemotherapy and below-the-knee amputation, and no local recurrence or metastasis was noted after 2 years of follow-up. 相似文献
Omental pregnancy is an extremely rare form of abdominal pregnancy. Only 16 cases had been reported in the literature, and most were secondary omental pregnancies. We presented a case of primary omental pregnancy located on "gastrocolic ligament" diagnosed at surgical operation. The aim of this presentation is to remember that pregnancy can exist in unusual localizations, so abdominal observation and examination is very important during operations. 相似文献
Perioperative myocardial injury is an important reason of mortality and morbidity after neurosurgery. It usually is missed due to its asymptomatic character. In the present study, we investigated myocardial injury after noncardiac surgery (MINS) incidence, the risk factor for MINS, and association of MINS with 30-day mortality in neurosurgery patients. Patients with cardiac risk who underwent elective neurosurgery were enrolled to present prospective cohort study. The patients’ demographics, comorbidities, medications used, medical history, and type of operation were recorded. The high-sensitivity cardiac troponin (hs-cTn) levels of the patients were measured 12, 24, and 48 h after surgery. The patients were considered MINS-positive if at least one of their postoperative hs-cTn measurement values was?≥?14 ng/l. All the patients were followed up for 30 days after surgery for evaluation of their outcomes, including total mortality, mortality due to cardiovascular cause, and major cardiac events. A total of 312 patients completed the study and 64 (20.5%) of them was MINS-positive. Long antiplatelet or anticoagulant drug cessation time (OR: 4.9, 95% CI: 2.1–9.4) was found the most prominent risk factor for MINS occurrence. The total mortality rate was 2.4% and 6.2% in patients MINS-negative and MINS-positive, respectively (p?=?0.112). The mortality rate due to cardiovascular reasons (0.8% for without MINS, 4.7 for with MINS, and p?=?0.026) and incidence of the major cardiac events (4% for without MINS, 10.9 for with MINS, and p?=?0.026) were significantly higher in patients with MINS. MINS is a common problem after neurosurgery, and high postoperative hs-cTn level is associated with mortality and morbidity.
The purpose of this study was to assess the availability of mental health (MH) and chemical dependency (CD) services at US transplant centers, because appropriate psychosocial assessment and care is associated with better transplant outcomes. We used the 2017‐2018 American Hospital Association survey, Area Health Resource File, and Centers for Medicare & Medicaid Services Hospital Compare databases to quantify availability of services and examined associations of hospital‐ and health services area‐level characteristics with odds of offering services with generalized linear mixed models. We found that 15% of transplant centers did not offer MH services and 62% did not offer CD services. Hospitals were more likely to offer MH services if they were larger (OR [95% CI]: 1.03 [1.01, 1.06]) and had a lower rate of uninsured patients in the health services area (OR [95% CI]: 0.89 [0.80, 0.99]) and were more likely to offer CD services if they were larger (OR [95% CI]: 1.02 [1.01, 1.03]) or were members of a system (OR [95% CI]: 2.31 [1.26, 4.24]). Additional research is needed to understand whether lack of MH or CD services at transplant centers affects patients’ ability to access comprehensive psychosocial care and whether this affects patient outcomes. 相似文献
Advances in culture-independent molecular biotechnologies have driven a greater appreciation for the function of mutualistic microorganisms in the maintenance of states of health in humans. The purpose of this study was to test the long-held hypothesis that healthy pulp lack bacteria.
Methods
Strict inclusion criteria were used to identify 10 pristine teeth from 10 healthy patients that were scheduled to be electively extracted in compliance with an orthodontic treatment plan. Using a rigorous disinfection protocol to isolate the operating field, the pulp space was accessed, and pulp tissue was collected in vivo from each tooth using a barbed broach. Genomic DNA was extracted from each pulp sample and analyzed for the presence of bacterial DNA using universal 16S ribosomal RNA polymerase chain reaction primers and MiSeq sequencing (Illumina, San Diego, CA) of community amplicons.
Results
One hundred percent (10/10) of the tested pulp tissues demonstrated the presence of bacterial DNA, with a mean of 343 operational taxonomic units per sample (range, 191–479). These were derived from 12 genera in which Ralstonia, Actinetobacter, and Staphylococcus were predominant (43%–78% of total community). None of the negative-field controls and none of the instruments used in the study tested positive for the presence of contaminating DNA.
Conclusions
This study presents evidence to support the conclusion that the pulp spaces of pristine healthy teeth contain detectable bacterial DNA. 相似文献
The administration of antineoplastic agents are associated with various vascular events. A case of acute bilateral renal infarction in a patient with non-small cell lung carcinoma during chemotherapy with cisplatin and gemcitabine is reported. The patient was misdiagnosed as having renal colic. To our knowledge, bilateral renal infarction following cisplatin and gemcitabine has not been reported previously. Renal infarction should be considered in the differential diagnosis of flank pain in a patient treated with gemcitabine and cisplatin. 相似文献
Resveratrol, a natural phenolic compound, has been shown to prevent cardiovascular diseases and cancer and exhibit neuroprotective effects. In this study, we examined the neuroprotective and antioxidant effects of resveratrol against hydrogen peroxide in embryonic neural stem cells. Hydrogen peroxide treatment alone increased catalase and glutathione peroxidase activities but did not change superoxide dismutase levels compared with hydrogen peroxide + resveratrol treatment. Nitric oxide synthase activity and concomitant nitric oxide levels increased in response to hydrogen peroxide treatment. Conversely, resveratrol treatment decreased nitric oxide synthase activity and nitric oxide levels. Resveratrol also attenuated hydrogen peroxide-induced nuclear or mitochondrial DNA damage. We propose that resveratrol may be a promising agent for protecting embryonic neural stem cells because of its potential to decrease oxidative stress by inducing higher activity of antioxidant enzymes, decreasing nitric oxide production and nitric oxide synthase activity, and alleviating both nuclear and mitochondrial DNA damage. 相似文献