World Neurosurg
-
Internal bands of the basilar artery (BA) have been rarely studied. Because bands could have obvious consequences in patient diagnosis and care, the present multiinstitutional cadaveric study was performed. ⋯ To our knowledge, this study is the first multiethnic study of the prevalence and morphometry of the BA bands. A better understanding of these bands may help reveal their relationship to thrombus and aneurysmal formation and their impact on endovascular procedures.
-
Observational Study
Hospital volume-outcome relationship in severe traumatic brain injury: a nationwide observational study in Japan.
The hospital volume-outcome relationship in patients with severe traumatic brain injury (TBI) remains unclear. This study investigated the association between the volume of patients with severe TBI and in-hospital mortality. ⋯ Higher hospital volumes were significantly associated with lower in-hospital mortality after severe TBI. Regionalization and referral to higher-volume hospitals are beneficial for severe TBI patients.
-
To evaluate radiation exposure and image quality (IQ) for 3 intraoperative imaging systems (Airo TruCT, Cios Spin, O-arm) using varying radiation dose settings in a single cadaveric model. ⋯ Selection of intraoperative imaging systems requires a greater understanding of the risks and benefits of radiation exposure and IQ.
-
Hematologic biomarkers that reflect host nutritional and inflammation status have been identified to be independent prognostic factors in various malignancies. The aim of the present study was to determine the predictive value of preoperative albumin, fibrinogen, prealbumin, albumin/fibrinogen ratio, and prealbumin/fibrinogen ratio (PFR) for the prognosis of patients with glioma. ⋯ Our findings show that circulating preoperative PFR might be a potential negative independent prognostic biomarker for individuals with glioma.
-
A retro-odontoid pseudotumor (ROP) is commonly associated with atlantoaxial instability or rheumatoid arthritis. However, ROP in the absence of atlantoaxial instability or rheumatoid arthritis, which is termed idiopathic ROP (IROP), is a rare condition. The pathomechanisms and optimal treatment strategies for IROP remain controversial. The aim of the present study was to evaluate the radiographic and clinical characteristics of IROP patients and to assess the efficiency of atlantoaxial/occipitocervical fusion on IROP regression. ⋯ IROP was related to a restricted range of motion of the subaxial spine. Upper cervical fixation is an optional treatment that produces IROP regression over time. By contrast, direct removal of the IROP is unnecessary.