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Within the field of computer assisted language learning (CALL), scant literature exists regarding the effectiveness and practicality for secondary students to utilize data-driven learning (DDL) for vocabulary acquisition. In this study, there were 100 participants, who had a mean age of thirteen years, and were attending an international school in Ho Chi Minh City, Vietnam. This particular milieu unsurprisingly comprised "third culture kids" (TCKs) and "cross-cultural kids" (CCKs). They were assigned to a control and experimental group; both had several intensive weeks of online-dictionary learning training, while the experimental group also experienced intensive DDL training. This was done prior to the start of the eight-week longitudinal study. Major findings included a significant longitudinal main effect for both groups, significantly overall higher results for the experimental group than the control, and a significant difference among subjects' grade level was discovered. Furthermore, the experimental group exhibited a significantly marked increase in vocabulary results in the later weeks of the experiment. In general, these results show that DDL can be successful in the secondary school English as a foreign language (EFL) context and that it promotes significantly better vocabulary acquisition when used in conjunction with online-dictionary vocabulary learning methods, especially for a sustained longitudinal period of time.

In conjunction with Vietnam's unparalleled economic growth over the past 20 years, our scope of neurosurgical interventions has considerably diversified throughout this time period. Although still appreciably limited, healthcare resources and infrastructure have expanded and shifted the focus within neurosurgery at Ho Chi Minh City's Cho Ray Hospital from head trauma (which remains highly prevalent) to an equal proportion of elective cases for vascular lesions, tumors, and degenerative spine disease. Arguably the most significant progress throughout the new millennium has been achieved in the realm of neurosurgical oncology. About 1000 craniotomies are performed annually for brain tumors at our institution, most of which are for lower-grade lesions that result in excellent surgical outcomes. We continue to strive to improve the standard of care for patients with malignant brain tumors, as the first multidisciplinary neuro-oncology care team was founded recently in 2016. This article is the first in the English neurosurgical literature to report on the current state and outcomes of neuro-oncology in Vietnam, as we highlight our experiences in caring for patients with brain tumors at Cho Ray Hospital. [ABSTRACT FROM AUTHOR]

Cho Ray Hospital is the premier tertiary care center in Ho Chi Minh City, Vietnam's most populous city. The neurosurgical department was founded in 1958 and is currently one of the busiest in the world. Last year the department was responsible for more than 10,000 neurosurgical operations, excluding neuroendovascular cases. Most of the elective cases are craniotomies for complex lesions such as aneurysms, arteriovenous malformations, skull base tumors, gliomas, and meningiomas. Although the neurosurgeons within the department are technically gifted, doing more with less predominates as the mantra at Cho Ray Hospital. The necessity to minimize costs and the scarcity of resources creates many unique circumstances, some of which lag decades behind the rest of the world. Nonetheless, the progress and trajectory of the department has been impressive as the neurosurgical care provided to the Vietnamese public continues to improve. This article describes the current state and future direction of The Department of Neurological Surgery at Cho Ray Hospital. [ABSTRACT FROM AUTHOR]

In the present study, we aimed to identify the obliteration outcomes, complications, and predictors in gamma knife radiosurgery (GKRS) treatment of brain arteriovenous malformations (AVMs) at a tertiary center in a developing country in a 15-year experience. We retrospectively reviewed the clinical data and GKRS procedures of patients who had undergone GKRS from 2006 to 2011 (cohort 1) and from 2011 to 2020 (cohort 2) at Cho Ray Hospital, Vietnam. The exclusion criteria included patients with <24 months of follow-up without obliteration or AVM-related hemorrhage during the study period. A total of 870 patients were included in the final analysis. The patients in cohort 1 had had significantly smaller AVMs (8.4 ± 11.6 cm3 vs. 11.2 ± 12.8 cm3; P < 0.001), and the AVMs were less frequently located in eloquent locations (46.6% vs. 65.5%; P < 0.001) than in cohort 2. The mean follow-up time was 49.6 ± 22.6 months (range, 5.9–102.6). The overall AVM obliteration rate was 66.6%. Cohort 1 had a significantly higher rate of complete obliteration compared with cohort 2 (81.0% vs. 55.1%; P < 0.001). The post-GKRS annual hemorrhage risk was 1.0%. Significant radiosurgery-induced brain edema and radiosurgery-induced cyst formation was reported in 24 (2.6%) and 4 (0.5%) patients in cohorts 1 and 2, respectively. Using multivariate analysis, we identified prior AVM hemorrhage (hazard ratio [HR], 1.430; 95% confidence interval [CI], 1.182–1.729), a higher margin dose (HR, 1.136; 95% CI, 1.086–1.188), a noneloquent location (HR, 0.765; 95% CI, 0.647–0.905), and smaller AVM volume (HR, 0.982; 95% CI, 0.968–0.997) as predictive factors for obliteration. GKRS is a safe and effective treatment of brain AVMs. The lack of prior AVM hemorrhage, an eloquent location, and higher AVM were unfavorable predictors for post-GKRS obliteration. [ABSTRACT FROM AUTHOR]