• Contreras Brennan posted an update 6 months, 1 week ago

    Heparin drip was stopped in two patients and they both progressed from DVT to pulmonary embolism one patient died due to cardiac arrest, the other patient was transitioned to oral anticoagulation. In the third patient heparin drip was continued uneventfully and transitioned to oral anticoagulation with no further clinical sequalae. Surveillance CT while on heparin drip for VTE management detected subclinical intracranial hemorrhage in a small subset of patients. Patients whose anticoagulation was stopped had progression of VTE. Undertreatment of VTE in the presence of subclinical hemorrhage may lead to significant morbidity and mortality.Little evidence exists to guide the preoperative selection of elderly brain tumor patients who are fit for surgery. We aimed to evaluate the safety of brain tumor resection in geriatric patients and identify predictors of postoperative 30-day systemic complications. We conducted a retrospective cohort study of 212 consecutive patients at or above the age of 60 years who underwent elective brain tumor resection between 2007 and 2017. The primary outcome measures analyzed were perioperative systemic complications within 30 days after the operation. A total of 212 geriatric brain tumor patients were included. Fifty-two (24.5%) had a 30-day systemic complication. Among them, 29 (13.7%) had systemic infections, 13 (6.1%) had perioperative seizures, 10 (4.7%) had syndrome of inappropriate antidiuretic hormone secretion (SIADH), five (2.4%) had deep venous thrombosis (DVT), four (1.9%) had perioperative stroke, three (1.4%) had acute myocardial infarction (AMI) and three (1.4%) had central nervous system (CNS) infections. One patient (0.5%) died. Perioperative stroke was predicted by previous stroke (p = 0.040), chronic liver disease (p less then 0.001) and vestibular schwannoma (p = 0.002 with reference to meningiomas). Perioperative AMI was predicted by co-existing ischemic heart disease (p = 0.031). Systemic infection was predicted by female gender (p = 0.007) and preoperative Karnofsky Performance Scale (KPS) score less then 70 (p = 0.019). DVT was predicted by GBM (p = 0.014). In conclusion, brain tumor surgery can be safe in carefully-selected geriatric patients. The risk factors identified in this study would be helpful to select suitable candidates for surgery.Hereditary spastic paraplegia type 11 (SPG11) is the most common subtype of autosomal recessive hereditary spastic paraplegia (HSP), to date, there are more than 181 different KIAA1840 gene mutations detected, and yet the genetic landscape of SPG11 is far from complete. To find the clinical and genetic characteristics of SPG11, we performed a reanalysis of the clinical features and genotype-phenotype correlations in all reported studies exhibiting SPG11 mutations. A total of 339 patients were collected, their mean age at onset was 13.10 ± 3.65 years, with initial symptoms like gait disturbance (107/195, 54.87%) and mental retardation (47/195, 24.10%). Cognitive decline (228/270, 84.44%) was the most common complex manifestation stepped by dysarthria (134/195, 68.72%), neuropathy (112/177, 63.28%), amyatrophy, sphincter disturbance (60/130, 46.15%) and ataxia (90/194, 46.39%). The most common brain MRI abnormality is thinning of the corpus callosum (TCC) (173/190, 91.05%), followed by periventricular white matter changes (130/158, 82.28%), cerebral or cerebellar cortical atrophy (55/107, 51.40%). The mutational spectrum associated with KIAA1840 gene is wide, and frameshift mutations are the most common type followed by nonsense mutations. Our reanalysis demonstrated that SPG11 exhibited significant clinical and genetic heterogeneity, and no clear genotype-phenotype correlation was observed. There is no mutational hot spot in the KIAA1840 gene, which emphasizes the need to analyse the whole gene in clinical practice. In addition to conventional genetic testing methods, further mRNA analysis should be conducted on some cases to yield a definitive diagnosis.The surgical management of sacro-iliac chondrosarcomas is challenging given their intimate relationship to the nerves and vessels of the pelvis. Osteotomies for en bloc excision can be challenging because of lack of visualization and high risk of injury to pelvic structures. The use of three-dimensional (3D) printed models helps conceptualize the tumor relative to the patient’s anatomy. Coupled with stereotactic navigation, safe osteotomy planning and execution can be performed with avoidance of vital nerves and vessels. Very few cases have been reported demonstrating the successful use of these 2 modern technologies for en bloc excision of difficult tumors. We present our technique of using a 3D printed model and navigation for en bloc excision of a large sacro-iliac chondrosarcoma, supplemented with an intraoperative video.

    Rituximab (RTX) is a mouse-human chimeric anti-CD20 monoclonal antibody and has been increasingly used for preventing relapses in myasthenia gravis (MG). However, the appropriate dose for maximizing the beneficial effects in refractory MG with acetylcholine receptor (AChR) autoantibody is a long-standing and critical debating question.

    We performed a meta-analysis to evaluate the efficacy and safety of the different doses of RTX in 260 refractory AChR-MG patients.

    The AChR-MG patients were divided into low or routine RTX dose groups. SAR439859 progestogen Receptor antagonist An overall proportion of 77% (p=0.000) AChR-MG patients demonstrated improved clinical status as indicated by the Myasthenia Gravis Foundation of America post-intervention scale (MGFA-PIS). There were 77.1% patients showed improved clinical status in lower dose of RTX group (p=0.000) and 76.8% in routine protocol group (p=0.000). Although we found there was no significant difference in the proportion of AChR-MG patients with improved clinical status or adverse reactions between the two groups, adverse reactions might be lower in the lower dose RTX group.

    Most of refractory MG patients with anti-AChR autoantibody were well responsive and tolerated to RTX treatment. Repeated application of lower dose of RTX was effective and might be more appropriate for refractory AChR-MG patients with potential lower side effects.

    Most of refractory MG patients with anti-AChR autoantibody were well responsive and tolerated to RTX treatment. Repeated application of lower dose of RTX was effective and might be more appropriate for refractory AChR-MG patients with potential lower side effects.

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