AlM:To investigate the effect of peripheral vision control technology for delaying the development of juvenile myopia.METHODS:A total of ninty-nine cases of 12 ~18 year-old myopic patients were randomly divided into two groups. The experimental group was peripheral vision control technology group whose members wore the special lenses which can help correct the hypermetropic defocus of peripheral retina. The other was control group whose members wore ordinary monofocal lenses. All the subjects needed to accept re-examination every 3mo and be recorded the data of dioptre, corneal curvature and axial length.RESULTS: After 18mo, the dioptre and axial length of two groups had increased in varying degree. But the data's different quantity of the corneal curvature in each group had no statistical significance ( P > 0. 05 ). Themyopia deepen quantity in experimental group was-0. 65±0. 65D and its axial growth was 0. 23±0. 22mm, and the myopia deepen quantity in control group was -1. 17 ± 0. 50D and its axial growth was 0. 41 ± 0. 17mm. Under the circumstance of valid data, the increment of myopia and axial length in experimental group was lower than that in control group (P<0. 05).CONCLUSlON: Peripheral vision control technology can delay the development of juvenile myopia effectively.

Objective To investigate the application of computer radiography system in combination with high kV radiography technique to diagnose cardiac disease.Methods 30 patients with cardiac disease were taken chest photographs,which chest photographs by CR system and high kV radiography technique were compared with these by common high kV radiography.Results The good rate of air tube occupied is 98% in therapy group,but the rate is only 70% in common group.The discrepant comparison is significant differences.Conclusion It is more significant that CR system in combination with high kV radiography technique than common photograph to diagnose cardiac disease.

Objective To find a proper way for accurate results on completing blood counts.Methods Based on the results from automatic hematology analyzer XE-2100,set up the criteria for blood cell microscopic examination.1368 blood specimen were detected and the results were analyzed according to the criteria.Statistics on the data were made to evaluate the accordance between warnings of analyzer and manual examination,likewise the reliability of the criteria.Results Comparing with microscopic examination,analyzer warning on low PLT has good accordance,Kappa value was 0.95,U value was 35.19,P

BACKGROUND:Open fracture of lower limb with severe soft tissue and bone defects also accompanies anterior tibial soft tissue defects and exposure of sclerotin and steel plate, which can be crucial y treated with strong fixation and use of skin flap to block the wound.
OBJECTIVE:To explore the clinical efficacy of a large area of soft tissue defects in the anterior tibia using vacuum sealing drainage combined with groin free flap.
METHODS:A total of 24 patients with a large area of soft tissue defects in the anterior tibia were included in this study and then divided into two groups, with 12 cases in each group. In vacuum sealing drainage group, the scope of soft tissue defects was ranged from 10 cm×15 cm to 15 cm×20 cm. After the debridement, the fracture was fixed with external fixation scaffold and the wound was covered with the vacuum sealing drainage dressing. The blood clot was rinsed with normal saline via T-tube, and 7-10 days later the vacuum sealing drainage was given. According to the growth of granulation tissue, the wound was secondarily sutured, fol owed by groin free skin flap of superficial iliac circumflex artery with medial knee arteriovenous anastomosis transplantation. In the non-vacuum sealing drainage group, the wound size was ranged from 10 cm×5 cm to 30 cm×20 cm, the period from injury to admission was 1-24 hours. They were given conventional debridement and secondary fixation or skin flap transplantation.
RESULTS AND CONCLUSION:The length of preoperative hospital stay and the skin flap are in vacuum sealing drainage group were significantly better than those in non-vacuum sealing drainage group (P<0.05). There was no significant difference in the length of postoperative stay and total length of hospital stay between the two groups (P>0.05). The wound infection rate was 0 in vacuum sealing drainage group and 75%in non-vacuum sealing drainage group at 8-14 days after treatment. The wound and donor area incision were healed at I stage, the skin grafts survived. Al the involved patients in two groups were fol owed up, for 6-36 months. During the fol ow-up process, the fracture healing time in non-vacuum sealing drainage group was significantly longer than that in vacuum sealing drainage group. The skin flap in two groups was similar to surrounding skin in color and texture, the flap exhibited no vessels, no ulceration, and no clumsy. The vacuum sealing drainage combined with groin free flap can timely control a large area of soft tissue defects post-trauma, improve wound blood supply, shorten preoperative preparation time, early close the wound, significantly promote the healing of wound and fracture. The skin flap is soft, flexible, wel-looking, and active functional, it significantly shortens the course of treatment and maximizes the recovery of limb function.

Objective To explore the changes of serum gastrin(GAS),plasma motilin(MTL) and somatostatin(SST) in critically ill children with gastrointestinal dysfunction(GID).Methods According to pediatric critical illness score,75 cases were divided into greatly critical group(score90).Fifty cases of greatly critical and critical group were divided into GID group and non-GID group.The levels of serum GAS,plasma MTL and SST were detected on an empty stomach at acute stage and convalescence stage,comparing with those of normal control group,and then,the relationship between the levels of serum GAS,plasma MTL,SST and GID,the severity of disease were analyzed.Results At acute stage,the levels of serum GAS and plasma MTL of greatly critical group and critical group were higher than those of normal control group,the levels of plasma SST of greatly critical group and critical group were lower than that of normal control group,the more severe condition of critical children,the higher level of serum GAS and plasma MTL,the lower level of plasma SST.At convalescence stage,the level of serum GAS and plasma MTL of the greatly critical group and critical group decreased and the level of plasma SST increased.The levels of serum GAS and plasma MTL of GID group were higher than those of non-GID group,but the level of plasma SST of GID group was lower than that of non-GID group.Conclusion The level of serum GAS,plasma MTL and SST can be used to assess the severity of illness and prognosis,judge the change of disease and determine the efficacy of treatment programs,and detect gastrointestinal functional lesion.

AIM:To investigate how to design personalized cataract surgery programs to achieve surgical correction of preoperative corneal astigmatism with surgical astigmatism under the guidance of corneal topography, improve postoperative visual quality and reduce the cost of treatment.
METHODS: Totally 202 cases ( 226 eyes ) cataract patients were divided into randomized treatment group and individualized treatment group. According to the method and location of the incision, randomized treatment group were divided into 8 groups. Surgical astigmatism after different incision were calculated with the use of preoperative and postoperative corneal astigmatism through vector analysis method. Individualized treatment groups were designed personably for surgical method with reference of every surgically induced astigmatism, the surgical method chooses the type of surgical incision based on close link between preoperative corneal astigmatism and surgically induced astigmatism, and the incision was located in the steep meridian. The postoperative corneal astigmatism of individualized treatment group was observed.
RESULTS: Postoperative corneal astigmatism of individualized treatment group were lower than that of 3.0mm clear corneal tunnel incision in the randomized treatment group, there were statistically significance difference, while with 3. 0mm sclera tunnel incision group there were no statistically significance difference. After 55. 8% of patients with the use of individualized surgical plan could undergo the operation of extracapsular cataract extraction with relatively low cost and rigid intraocular lens implantation, the per capita cost of treatment could be reduced.
CONCLUSION: Personalized cataract surgery programs are designed to achieve surgical correction of preoperative corneal astigmatism under the use of corneal topography, improve postoperative visual quality and reduce the cost of treatment.

Aged ; Aged, 80 and over ; Cervical Vertebrae ; abnormalities ; Esophagus ; Foreign Bodies ; complications ; Humans ; Male

Adult ; Aged ; Female ; Fluorodeoxyglucose F18 ; Head and Neck Neoplasms ; diagnostic imaging ; secondary ; Humans ; Lymphatic Metastasis ; diagnostic imaging ; Male ; Middle Aged ; Positron-Emission Tomography ; Retrospective Studies

Objective To develop methods of extracting DNA from malaria parasites on Giemsa-stained blood smears. Methods Improved Na2HPO4 method and Chelex-100 ion-exchange technique were used to extract DNA from Giemsa-stained or unstained blood smears. Nested PCR was employed for amplification and identification of allelotypes in the Plasmodium vivax merozoite surface protein-1(PvMSP-1). Results Target DNA bands appeared in all samples of unstained thick blood smears, while no DNA bands were visible in the fixed and stained thin smears. Both methods identified PvMSP-1 alleles from smears with parasitemia of ≥0.01%. Conclusion It is feasible to identify PvMSP-1 alleles from Giemsa-stained blood smear.

Adult ; Cerebrospinal Fluid Rhinorrhea ; etiology ; Female ; Humans