2.Use of wire frame tie-over to fix the facial skin grafts
Xin CHEN ; Fengjun QIN ; Hui CHEN
Chinese Journal of Tissue Engineering Research 2007;0(14):-
BACKGROUND: Facial tie-over is a conventional method for skin graft fixation, but it needs further improvements due to the unsatisfactory fixation, survival quality, postoperational contraction and appearance. OBJECTIVE: To improve the survival quality of facial skin grafts using the modified wire frame tie-over for the fixation. DESIGN, TIME AND SETTING: An observation trial was carried out at the Department of Burns in Beijing Jishuitan Hospital from January 2003 to December 2007. PARTICIPANTS AND MATERIALS: A total of 23 patients suffered from facial burns and post-burn scar were enrolled from the Department of Burns in Beijing Jishuitan Hospital, 16 males and 7 females, with a mean age of (37?18) years. The wire frame tie-over skin grafts were used in 32 facial wounds, including 8 cheek wounds, 20 eyelid wounds and 4 perioral wounds. The 1.0-1.5 Kirschner wire frame, made of stainless steel, was shaped as the wound outline; the rubber bands and clip were sterilized with ethylene oxide. METHODS: All the patients were grafted by means of wire frame tie-over, and the maximal area of skin graft was 18 cm?10 cm. After the routine skin grafting, the Kirschner wire frame was sutured to the edge of wound, then tie-over was performed using the sutures or the sterilized rubber bands fixed on the wire frame. The wire frame was removed three to four weeks after operation. MAIN OUTCOME MEASURES: The survival of skin grafts was recorded at the removal of tie-over, including survival rate of skin grafts and appearance of crater phenomenon that was prominent at edges and depressed in center; The skin grafts were pictured to observe the early contraction at the removal of wire frames 3-4 weeks later. The patients who were potential for the long-term follow-ups were used to observe the long-term contraction. RESULTS: Among 32 wounds in 23 patients, 31 skin grafts had an excellent skin grafting, except a partial graft necrosis occurred in one case due to insufficient debridement. The skin grafts were flat and intact, no crater phenomenon was found. Three or four weeks after operation, the area of skin grafts maintained in original style, no early contraction was found. One year later, the patients appeared mild contraction of skin graft, and the skin appearance was satisfactory. CONCLUSION: Improved wire frame tie-over method can increase the survival quality of facial grafts and alleviate the graft contraction.
3.Retrospection of hematopathologic research of the past 50 years in China.
Chinese Journal of Pathology 2005;34(9):553-555
Acute Disease
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Bone Marrow Neoplasms
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pathology
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Hematologic Neoplasms
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pathology
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Humans
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Immunohistochemistry
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In Situ Hybridization, Fluorescence
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Leukemia
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pathology
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Lymphoma
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pathology
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Myelodysplastic Syndromes
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pathology
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Neoplasm Invasiveness
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Plastic Embedding
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Purpura, Thrombocytopenic, Idiopathic
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pathology
4.Preliminary application of voxel-based morphometry technique on brain changes in neuromyelitis optica
Hui XIAO ; Lin MA ; Ziqian CHEN ; Xin LOU ; Zhiye CHEN
Chinese Journal of Radiology 2011;45(4):336-340
Objective To investigate the changes of brain volumes in neuromyelitis optica (NMO)patients using voxel-based morphometry (VBM) method, and preliminarily explore the pattern of cerebral anatomical impairment. Methods Twenty-three clinically defined NMO patients and 15 gender and age matched healthy volunteers underwent 3-dimensional (3D) fast spoiled gradient echo (FSPGR) sequence scanning on 3.0 Tesla MR systen. Raw data was processed and analyzed using statistical parametric mapping (SPM) 5. Whole brain volumes included grey matter volume (GMV), white matter volume (WMV), total intracranial volume (TIV), grey matter fraction (GMF), white matter fraction (WMF),brain tissue fraction (BTF) and regional brain volumes between the two groups were compared by independent samples t-test and an Pearson were performed to compare the regional brain volumes and the ages. Results GMV of NMO group[(610. 2 ± 55.0) ml] was significantly decreased comparing to healthy control group[(657. 2 ± 36. 3) ml] (t = - 2. 915, P < 0. 05). The age of NMO patients [(40 ± 9) years old] showed negative correlation with GMF [(42. 5 ± 2. 6) %] (r = - 0. 673, P < 0. 05). Regional brain volume analysis showed decreased GMV in left insula and bilateral posterior cingutates in NMO patients,while decreased WMV was found in left frontal and left parietal white matter. Conclusion VBM could detect brain volume changes sensitively. Total grey matter volume in NMO patients was decreased comparing to HC group. Regional grey matter atrophy in NMO patients occurred in left insular and bilateral posterior cingutates, regional white matter atrophy occurred in left frontal and left parietal lobe.
5.Effect of contrast medium by left or right side ulnar vein injection on the quality of enhanced CT images
Hui CHEN ; Xin ZHANG ; Xinli ZHANG ; Aipeng CHU
Chinese Journal of Postgraduates of Medicine 2011;34(18):24-26
Objective To compare the effect of contrast medium by left or right side ulnar vein injection on the quality of enhanced CT images. Methods One hundred and sixty-five consecutive patients underwent thoracic CT contrast enhancement examination with multi-detector CT and scan delay time was 60 seconds. According to group sampling, subjects were divided into three groups: young age group ( < 40 years old) 35 cases, middle age group( 40-60 years old ) 60 cases, elder age group( > 60 years old ) 70 cases, and then patients were divided into two groups by random digits table with left side ulnar vein injection (left vein group, 77 cases ) and right side ulnar vein injection ( right vein group, 88 cases ) . Anteroposterior dimension between posterior border of manubrium sterni and anterior border of aortic arch (or brachiocephalic artery) where left brachiocephalic vein acrossing was measured and analyzed with relation of image quality. Results The anteroposterior dimension showed a statistical significant difference between young age group and elder age group(P< 0.05), but no statistical difference between middle age group and elder age group(P> 0.05). The CT value in left vein group and right vein group was (106 ?24 ), (149 ?29 ) HU respectively, and there was statistical difference between two groups (P<0.05). The good quality CT image in left vein group and right vein group was 61.0% (47/77),79.5% (70/88), and there was statistical difference (P <0.05). Conclusion CT contrast enhancement examination with right ulnar vein injection rather than left side may improve the quality of images by avoiding compression of left brachiocephalic vein in some patients .
6.A comparative study of diagnostic characteristics of the homeopathic medicine and Chinese medicine
Qunce ZHANG ; Yemeng CHEN ; Hui LI ; Xin ZHENG ; Tianfang WANG
International Journal of Traditional Chinese Medicine 2010;32(5):446-447
Homeopathy is a relatively independent therapeutic system that is very popular in Europe and the United States. Although homeopathic medicine and Chinese medicine belongs to two different medical systems stemmed from two distinct cultural backgrounds, they do share similar philosophies, holistic treatment principles, and more importantly diagnostic approaches. This study focuses on homeopathic diagnosis and discusses its diagnostic strategies, laws and clinic practice characteristics through the comparison of homeopathic and Chinese medicine diagnosis.
10.Study on the Effect of Borneol Nasal Drops on the Vasopermeability of Nasal Mucosa and Cerebral Vessel of Guinea Pigs
Ruitao ZHANG ; Hui WANG ; Li CHEN ; Xin LI
China Pharmacy 2005;0(17):-
OBJECTIVE:To observe the effect of different concentration of borneol nasal drops on the vasopermeability of nasal mucosa and the cerebral vessels.METHODS:Guinea pigs were divided into5groups,i.e.borneol group in3different concentrations(0.5%,1.0%and2.0%),histamine group and liquid paraffin group.Guinea pigs were injected i.v with2%evans blue(EB)after administration with nasal drops,which were then put to death10min later;the nasal mucosa and brain tissue of which were obtained and the EB contents in which were determined.RESULTS:Compared with the liquid paraffin group,the EB contents in the nasal mucosa and brain tissue in the borneol groups were higher(P