Knowledge and attitude toward COVID-19 among healthcare workers at District 2 Hospital, Ho Chi Minh City

Objective: To assess the knowledge and attitude toward coronavirus disease-2019 (COVID-19) among healthcare workers at District 2 Hospital in Ho Chi Minh City (HCMC). Methods: A cross-sectional study was performed between January 2020 and February 2020 at District 2 Hospital. A systematic random sampling strategy was carried out and the data was collected through a self-administered questionnaire of the knowledge and attitude of healthcare workers regarding COVID-19. Descriptive analysis was reported to describe the demographic, mean knowledge and attitude score of healthcare workers. Inferential statistics including t-test, ANOVA and Spearman's correlation were used to evaluate the relationship between study variables. Results: A total of 327 eligible healthcare workers had a mean score of knowledge and attitude of 8.17±1.3 (range 4-10) and 1.86±0.43 (range 1-5), respectively. They showed good knowledge and a positive attitude. However, approximately two thirds of the participants knew the mode of transmission, the isolation period and treatment (67.0%, 65.8%, and 58.4%, respectively), and 82.3% and 79.8%, respectively, held positive attitude regarding the risk of personal and family members getting illness. There was a negative correlation between knowledge scores and attitude scores (r=-0.21, P<0.001). Additionally, healthcare workerspredominately used social media to inform themselves about COVID-19 (91.1%). Conclusions: The majority of healthcare workers had good knowledge and positive attitude toward COVID-19. However, the level of some knowledge and attitude lower than that expected for their position level towards the virus. Additional education interventions and campaigns are required for healthcare workers.

Preliminary result of trans pars planar vitreo-lensectomy combined with intraocular lens insertion in patients with ocular injury

Introduction: Cataract and vitreous opacification caused by ocular injury results in significant visual loss. Objectives: to evaluate the initial outcome of patients with ocular blunt or penetrating trauma who underwent trans pars planar vitreo-lensectomy and posterior chamber intra ocular lens insertion. Comment on the indications and applications of surgical techniques. Subjects and method: In this prospective randomized study, a total of 30 patients (30 eyes) with blunt/penetrating ocular trauma were assessed using X-ray and ultrasound in the Trauma Department of National Institute of Ophthalmology, from December 2005 to August 2006. Results: 30 patients (28 men and 2 women) with an age range from 3 to 45 years. Penetrating injuries are more common than blunt ones. The cornea is the most common site of injury (73.3%). Conclusion: Intraocular lens were implanted at the time of trans pars planar vitreo-lensectomy can provide a reasonable restoration of visual acuity and binocular function.

Cover small skin and soft tissue defects of wrist, hand and thumb by reverse posterior inter-osseous skin flaps

33 cases of posterior inter-osseous island flaps with reverse flow were done at the Reconstructive Microsurgery Department, Center for Trauma and Orthopedics of Ho Chi Minh City from January 1997 to September 1998. These flap transfers were used to cover small skin and soft tissue defects of wrist, hand thumb and MP Joint areas. The total surface of the island flap is from 32-60 cm2, the pedicle length is from 08-12cm. The survival rate was 94%, the graft skin was supplied, with very little fibrous and contractile scar. There was no sensibility except 03 were gradually recovered up to S1-S2. The conveniences of this procedure were acceptable: easy to perform, unnecessary to scarify a main artery and the survival rate of the flap is high. This island flap is always suitable to relapse the Chinese island flap in some indications.

Historical review of operative microscope in the neurosurgery

Zacharias and Haus Janssen were the first manufacturers of the simple microscope, 1590. After that, Anton Von Leuwenhock was a German who created an inperfected glass with magnification of 270 times. Then, Carl Zeiss introduced the principle of the tri-dimentional telescope. By the 1960s, microscopes have been used rather widely in neurosurgery. Beginning from March, 1997, Dep of neurosurgery of Cho Ray hospital has applied the microscope in cerebral vascular diseases and brain tumors

Review the histopathology in 12 cases of reoperation of maxillary sinus

Objectives: Review the maxillary sinus of 12 operated patients by surgical evaluation, Nasal-sinus endoscopy and histopathological tests for finding the fiber tissue whether distributes the maxillary sinus mucosa or not after the radical operation. Results: there is a regeneration of maxillary sinus mucosa following radical operation. This mucosa distributed the infected mucosa that to be removed. The epithelium was regenerated well (8/12 cases) and poor (4/12 cases). The intestinal mucosa was regenerated well (6/12 cases) and poor (6/12 cases)

47 cases of microsurgery operating for the tumor of VIII nerve (acoustic neuroma)

47 studied cases aged from 18 to 75 years with a prevailing of women against men were diagnosed by CT-scanning and by MRI. The function of VIII nerve was assessed by clinical examination and by audiogramme. Tumors of VIII nerve occupied 8-10% of the total of intracerebral tumors and 70-80% of all cerebellous angle tumors. Microsurgery manifested good results for facial nerve function on 100% of small tumors, 40% of medium and 22.22% of large tumors. Functional hearing results were also evaluated with respect of the sizes of tumors. Complications of the surgery consisted mainly of cerebrospinal fluid leakage (2.12% of all patients). There were 8 cases of meningitis postoperatively, their 1 died. Complete resection of the tumor was accomplished on 63.8% of patients (consisting of 100% of small, 70% of medium and 61.1% of large tumors).

Some opinions of diagnosis of acoustic neurinomas by CT scanner and magnetic resonance image

Exact diagnosis of the acoustic neurinomas depends on CT Scanner and Magnetic Resonance Imaging 41 of these 47 cases were done CT Scanner and MRI with 12 cases revealed the wonderful positive results in diagnosis. So it is very easy in order to choose the procedure in the treatment via CT Scanner and MRI.

Histopathological lesions in chronic maxillary sinusitis

94 patients who were 15 years or more were involved in study. These patients were underwent histological examinations. Histopathological revealed variable and complex lesions, with multiple lesions in the same sinus such as mucous degeneration, hyperplasia, dysplasia, atrophy, papiloma, fungus. Lesions in buffer tissues include significant edema, bleeding, congestion, gland proliferation and structural abnormalities.

Situation of haemorrhagic dengue fever (DHF) at Khanh Hoa province

The number of haemorrhagic dengue fever hospitalized at Khanh Hoa province was high during 1989-1998. The recorded peak of outbreak in 1992, 1995 and 1998 were 2212, 5358 and 7454 cases, respectively. The number of patients was high from May to November. 67,1% were the children under 15 years old. The patients at Nha Trang consisted highly 76,1%, followed by Cam Ranh 11,1%, Dien Khanh 95%. The vector controlling indexes were high during 1995-1997, the intervention was decreased, but it quickly returned to the beginning.

A propos 1 case of sudden loss of hearing due to meningioma known as acoustic neuroma (tumor of VIII nerve)

Cerebellopontine angle meningioma originates usually from cerebellar tentorium and petrous bone, sometimes expands to the internal auditory canal. In this case, the meningioma extended to the auditory canal and pressed the VIII nerve causing hearing loss suddenly as an acoustic neuroma. Contrast CT-scanning revealed a neuroma with a normal auditory canal. The removed tumor was identified microscopically as a meningioma

Surgical treatment of cervical spinal stenosid

100 patients involving Cervical Spinal Stenosis have been operated on from 10/1995- 9/1999 in the Spinal Surgery Dep. A Centre for Trauma- orthopedics in HCM city. The clinical data was as following: 32 cases involving Cervical Spondylosis; 63 cases involving Cervical Disc Herniation; 5 OPLL and CDH. Mean age: 49, 95 (29-76). Men: 69. Women: 31. 85 surgical interventions for 81 patients using Anterior Decompression and Fusion for one to three stages (4 reoperated cases: 2 epidural hematomas and 2 graf dislocations). 19 cases operated by posterior Approaches: two laminectomy, 17 using the KUROKAWA technique with four technical failure (turned to ITOH in two cases and lamiectomy in two cases). Grafting technique used: argenson 1, Bailey-Badgley 5, Bohlman 11, Bohlman and Kokubun 1, Kokubun 45, Kokubun for 2 different stages 1, Smith-Robinson and Kokubun for two different stages 1. Good fusion was obtained in all of the cases using the Anterior Decompression and Grafting. The recovery rate for whole group was 71% following the Scale of JOA. 71/87 cases accompanied by the neurological deficits recovered from motor weakness. Among them, there were 60,56% complete recovery, 39.44% partial recovery. 52/81 cases with anterior decompression and arthrodesis were followed between 3 to 39 months. 35 of them have been reviewed further 12 months. 11 of 19 cases operated by laminaplasty have been reviewed from 9 to 29 months. 9 of them with follow-up more than 12 months. Surgical treatment is really an effective method for Cervical Spinal stenosis. The skillfull surgical decompression techniques should be practiced.

On occasion of one case of the left posterior communicating carotid aneurysm

Intracranial aneurysms focus very often in the polygonal of Willis. They appear at the site of carotid-posterior communicating artery with high rate. Headache usually appears in these lesions. Subarachnoid hemorrhage is an early complication. Cerebral angiography plays a very important part in the diagnosis of these lesions but enhanced CT-Scanner can reveal them easily. We used sugita clip in the treatment of this aneurysm and had a good result. This spring clip that remains international standards is applied in spreading around the world.

Investigation on flavonoids from exocarpium of Citri L. Osbeck

Naringin and its aglycon, naringenin from the peel of C. grandis (L.) Osbeck were extracted, purified, and determined by UV, IR, and NMR spectrum.

Fixation and posterior bone fusion for surgical treatment of the lumbar vertebral slip due to degeneration

11 patients with the lumbar vertebral slip due to degeneration (male: 1; female: 10) ages of 39-70 received the surgical treatment by using fixation and posterior bone fusion. The results have shown that the average time for monitoring was 23.27 months; pain free (90.91%) pain relief (9.09%), out door normal walking (90.91%) home walking (9.09%). Technique of bone fusion: postero lateral fusion (81.82%), fusion of bony head (70%) posterobalteral fusion and fusion of bony head (70%), without fusion of bony head 30% and without posterolateral (18.18%). The conclusion: the fixation with instrument and bone fusion for treatment of lumbar vertibral slip due to the degeneration found the good and encoraged results

The situation of the treatment of diarrhea in Khanh Hoa hospital in 1998

A study on 1,741 patients with diarrhea admitted to Khanh Hoa hospital in 1998 was carried out to evaluate the clinical, epidemiological, microbial features and the antibiotic response. The results have shown that the highest rate of antibiotic resistance ocurred in cephalosporines and quinolons

Microbial in the chronic maxillary sinusitis

A study on the bacterials in the chronic maxillary sinusitis among patients more than 15 years has shown that patients with ages of 15-35 accounted for 78.48%. The antibiogram for microbial isolated from sinus found that sensitivity of microbial to Ciprofloxacin, gentamicin, Cephalexin, erythromycine, chloramphenicols, ampicilline, penicillin, Augmentine, Thiophenicole was 100%, 76%, 63.5%, 15.62%, 17.75%, 8.37%, 6.25%, 5.25% and 2.12%, respectively.

Surgical treatment of 8 patients with cerebral atteriovenous malformation

Most of arteriovenous malformations have the congenital origin and are formed from the mesoderm. They usually are seen under the 40 age and can be ruptured during any time. Sometimes they are also related to stress. Cerebral angiography keeps to play an important role in the diagnosis of AVM Digital Subtraction Angiography is a new advance in AVM diagnosis, it reveals AVM exactly and clearly. So, it helps the neurosurgeons to assess the treatment procedure appropriately. The characteristics of the surgical indications:* AVM in the surface of the cortex or under the cortex.* Size under 6 cm in diameter. * Noneloquent areas.* Without other diseases. Prevention of seizure with phenytoine is nesessary for pre and post operation. Nowadays, gamma knife is applied in spreading around the world with small and deep AVM or eloquent areas.