Transanal drainage tube for prevention of anastomotic leak after anterior resection for rectal cancer: a meta-analysis / 中华胃肠外科杂志

Objective: To assess the effectiveness of transanal drainage tube (TDT) in reducing the incidence of anastomotic leak following anterior resection in patients with rectal cancer. Methods: We conducted a systematic search for relevant studies published from inception to October 2022 across multiple databases, including PubMed, Embase, Web of Science, Cochrane Library, CNKI, Wanfang, and VIP. Meta-analysis was performed using Review Manager 5.4 software. The primary outcomes included total incidence of anastomotic leak, grade B and C anastomotic leak rates, reoperation rate, anastomotic bleeding rate, and overall complication rate. Results: Three randomized controlled trials involving 1115 patients (559 patients in the TDT group and 556 in the non-TDT group) were included. Meta-analysis showed that the total incidences of anastomotic leak and of grade B anastomotic leak were 5.5% (31/559) and 4.5% (25/559), respectively, in the TDT group and 7.9% (44/556) and 3.8% (21/556), respectively, in the non-TDT group. These differences are not statistically significant (P=0.120, P=0.560, respectively). Compared with the non-TDT group, the TDT group had a lower incidence of grade C anastomotic leak (1.6% [7/559] vs. 4.5% [25/556]) and reoperation rate (0.9% [5/559] vs. 4.3% [24/556]), but a higher incidence of anastomotic bleeding (8.2% [23/279] vs. 3.6% [10/276]). These differences were statistically significant (P=0.003, P=0.001, P=0.030, respectively). The overall complication rate was 26.5%(74/279) in the TDT group and 27.2% (75/276) in the non-TDT group. These differences are not statistically significant (P=0.860). Conclusions: TDT did not significantly reduce the total incidence of anastomotic leak but may have potential clinical benefits in preventing grade C anastomotic leak. Notably, placement of TDT may increase the anastomotic bleeding rate.

Clinical observation of trabeculectomy combined with Dexamethasone iontophoresis in the treatment of acute PACG complicated with diabetes mellitus / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To observe the clinical effect of trabeculectomy combined with dexamethasone iontophoresis in the treatment of acute angle-closure glaucoma(PACG)with diabetes mellitus.<p>METHODS: Totally 42 eyes of 42 patients with acute PACG combined with diabetes in our hospital were selected and divided into trabeculectomy combined with iontophoresis group(group A)and trabeculectomy combined with peribulbar injection of methylprednisolone group(group B)according to different ways of controlling inflammation after surgery. Intraocular pressure, anterior chamber inflammation and complications before and after surgery were compared between the two groups.<p>RESULTS: The intraocular pressure of the two groups after surgery was significantly improved compared with that before surgery, and the difference was statistically significant(<i>P</i><0.05). Postoperative anterior chamber inflammation was well controlled in both groups without statistical significance(<i>P</i>>0.05). In terms of complications, group A was significantly superior to group B.<p>CONCLUSION: Trabeculectomy combined with dexamethasone iontophoresis or peribulbar injection of methylprednisolone can effectively control postoperative intraocular pressure and anterior chamber inflammation in patients with acute angle-closure glaucoma complicated with diabetes mellitus. Among them, the effect of combined dexamethasone iontophoresis in reducing complications is better and patients suffer less pain.

A Survey on Intelligent Screening for Diabetic Retinopathy / 中国医学科学杂志(英文版)

Diabetic retinopathy (DR) is one of the leading causes of vision loss and can be effectively avoided by screening, early diagnosis and treatment. In order to increase the universality and efficiency of DR screening, many efforts have been invested in developing intelligent screening, and there have been great advances. In this paper, we survey DR screening from four perspectives: 1) public color fundus image datasets of DR; 2) DR classification and related lesion-extraction approaches; 3) existing computer-aided systems for DR screening; and 4) existing issues, challenges, and research trends. Our goal is to provide insights for future research directions on DR intelligent screening.

Effect of Beclin-1 shRNA on hypoxia-induced autophagy in SH-SY5Y cells / 中国应用生理学杂志

OBJECTIVE@#To observe the effect of hypoxia on autophagy in Beclin-1-knockdown SH-SY5Y cells by constructing a stable transfected SH-SY5Y cell lines of silencing Beclin-1 gene.@*METHODS@#Beclin-1shRNA lentiviral vector and negative control lentiviral vector were constructed; the vector was transfected into SH-SY5Y cells; then the expression of Beclin-1 mRNA was detected by RT-PCR, the level of Beclin-1 protein was detected by Western blot. CCK-8 method was used to determine the effect of Beclin-1 knockdown on the viability of SH-SY5Y cells. Next, the blank control, negative control and transfected cells were cultured under 21% normoxia and 5% hypoxia conditions. The expression of LC3 protein in each group was detected by Western blot and the autophagic bodies were observed by electron microscopy.@*RESULTS@#Beclin-1 shRNA significantly inhibited the expression of Beclin-1 mRNA and protein in SH-SY5Y cells; after silencing Beclin 1 gene, the survival rate of Beclin-1 shRNA group cells was no different from that of negative control (NC) group. After 5% hypoxia treatment, compared with NC group, the ratio of LC3Ⅱ/LC3Ⅰand the number of autophagy bodies were all decreased in Beclin-1 shRNA group.@*CONCLUSIONS@#Beclin-1 knockdown SH-SY5Y cell lines and negative control cell lines were successfully established. Lentivirus-mediated Beclin-1 shRNA has no effect on the viability of SH-SY5Y cells, but can inhibit hypoxia-induced autophagy.

Activation of caspase-12 at early stage contributes to cardiomyocyte apoptosis in trauma-induced secondary cardiac injury / 生理学报

Trauma-induced secondary cardiac injury (TISCI) is associated with increased adverse cardiac events and death. We have previously reported that TISCI results in myocardial apoptosis and secondary cardiac dysfunction. However, the underlying mechanism is unclear. To identify the time course of trauma-induced cardiomyocyte apoptosis and possible apoptotic pathway, traumatic rat models were built with Noble-Collip drum. Meanwhile, normal rat cardiomyocytes were cultured with traumatic plasma (TP) for 48 h. Cardiomyocyte apoptosis, cardiac function and the apoptosis related enzymes, including caspase-3, -8, -9, and -12, were determined. The results showed that there was no direct injury of rat hearts immediately after trauma. However, compared with hearts from the sham rats, hearts isolated from traumatic rats exhibited reduced +dP/dTand -dP/dT24 h after trauma. In traumatic rats, myocardial apoptotic index and caspase-3 activity obviously increased 6 h after trauma, and achieved the maximal value 12 h after trauma. The activity and expression of caspase-12, an endoplasmic reticulum (ER) stress-specific caspase, elevated markedly 3 h after trauma and reached its peak 6 h after trauma. Otherwise, caspase-8 (extrinsic apoptotic pathway) and caspase-9 (intrinsic apoptotic pathway) in the myocardial tissue of traumatic rats were activated 24 h after trauma. Meanwhile, incubation of normal rat cardiomyocytes with TP increased caspase-12 activity at 6 h, caspase-3 activity at 12 h, caspase-8 and -9 activities at 24 h, respectively. TP-induced cardiomyocyte apoptosis was virtually abolished by Z-ATAD-FMK (a caspase-12 specific inhibitor). In addition, there was a significant negative correlation between myocardial caspase-12 activity and trauma-induced secondary cardiac dysfunction. Our present study demonstrated that caspase-12 is firstly activated and plays an important role in TISCI rats. Inhibition of caspase-12 mediated apoptosis may be a novel strategy in ameliorating posttraumatic cardiomyocyte apoptosis and secondary cardiac injury.

Effects of transcutaneous electrical acupoint stimulation assisting sodium nitroprusside controlled hypotension on Glu,ATⅡ and SOD / 重庆医学

Objective To observe the effects of transdermal acupoint electric stimulation(TEAS)assisting sodium nitroprus-side induced controlled hypotension on serum glucose (Glu),angiotensin Ⅱ (ATⅡ)and superoxide dismutase (SOD),and to inves-tigate the protective effect of TEAS under controlled hypotension anesthesia.Methods 60 cases undergoing elective endoscopy si-nus surgery by adopting sodium nitroprusside induced controlled hypotension under general anaesthesia maintained the mean arterial pressure(MAP)in 50-60 mm Hg and were randomly and equally divided into two groups.The group Ⅰ conducted TEAS,while the group Ⅱ did not conduct TEAS.The controlled hypotension time and surgery time were recorded in the two groups;Glu and ATⅡ values were detected before anesthesia (T0 ),30 min after hypotension (T1 ),hypotension stopping(T2 );SOD was detected at T0 ,T2 ,30 min after hypotension(T3 ).Results The operation time and controlled hypotension continuous time had no statistically significant difference between the two groups(P >0.05).The Glu value in the group Ⅰ had no statistically significant difference a-mong the 3 time points,while which at T1 ,T2 was higher than that at T0 in the group Ⅱ(P 0.05),which at T1 ,T2 in the group Ⅱwas higher than that in the group Ⅰ (P <0.05);the SOD value at T2 was lower than that at T0 in the group Ⅰ,which at T2 ,T3 in the group Ⅱwas lower than that in the group Ⅰ(P <0.05).Conclusion TEAS assisting sodium nitroprusside controlled hypotension can better in-hibit the stress response.

Effects of assisted-electroacupuncture on recovery of fast tracking anesthesia in mPCNL / 中国针灸

<p><b>OBJECTIVE</b>To compare the effects on anesthesia recovery between assisted-electroacupuncture fast tracking anesthesia and simple fast tracking anesthesia in patients with minim ally invasive percutaneous nephrolithotomy (mPCNL).</p><p><b>METHODS</b>Eighty cases of mPCNL were selected and randomly divided into a treatment group and a control group. Fentanyl (1-2 microg/kg), sevoflurane (8%) and rocuronium (0.5 mg/kg) were applied to perform anesthesia induction in both groups, and endotracheal inhalation of sevoflurane and intravenous pump injection of remifentanil were adopted to main anesthesia status during the operation. 20 min before anesthesia induction, bilateral Neiguan (PC 6), Neimadian, Hegu (LI 4), Yangxi (LI 5), Zhongji (CV 3), Qichong (ST 30), Zuwuli (LR 10) were selected and punctured in the treatment group, and elecctroacupuncture was given after arrival of qi until 30 min after the wake-up from anesthesia and withdrawal of endotracheal tube. The dosage for anesthesia maintenance, recovery time of awareness, extubation time, incidences of nausea, vomiting and chill and irritation of urethral catheters were observed and recorded.</p><p><b>RESULTS</b>(1) The dosages of remifentanil and sevoflurane in the treatment group during the operation were obviously less than those in the control group [remifentanil: (5. 27 +/-1.23) micro g/kg h vs (7.35+/-1.70) micro g/kg . h; sevoflurane: (1.12+/-0.43) vol% vs (2.35+/-0.87) vol% , both P<0. 001]. (2) The recovery time of awareness and extubation time in the treatment group were significantly earlier than those in the control group [recovery time of awareness: (5.65 +/- 2.34) min vs (8. 87 +/- 6. 84) min, P<0. 01; extubation time : (7. 23+/-4. 35) min vs (10. 62+/-8. 16) min, P<0. 05]. (3) The incidences of nausea, vomiting and chill in the treatment group were significantly less than those in the control group (all P<0. 05). (4) The irritation of urethral catheters on urethra in the treatment group was significantly less than that in the control group (P<0. 001).</p><p><b>CONCLUSION</b>The assisted-electroacupuncture anesthesia could reduce the dosage of remifentanil and sevoflurane in mPCNL fast tracking anesthesia in urinary surgery, reduce the incidences of nausea, vomiting, chill and irritation of urethral catheters during recovery stage, and prompt recovery of mPCNL patients.</p>

Analyses on antigen epitopes and drug resistance mutations of HIV-1 gag and pol genes / 病毒学报

To study the CTL antigen epitopes and drug resistance mutations of HIV-1 gag and pol genes through analyzing gag and pol gene sequences. The HIV-1 gag and pol gene fragments were amplified using nested polymerase chain reaction. A total of 23 PCR sequences, 449 cloned gag sequences and 402 cloned pol sequences were obtained. Sequence analyses showed the 23 samples were subtype B or B'. A total of 4 in 8 CTL antigen epitopes appeared 8 mutations in consensus sequence of subtype B and B'. There were no mutations found in the PCR sequences, whereas a few mutations were found in clone sequences (9.80%) in 5 antigen epitopes in p24 region. Eighteen PIs-related mutations and 24 RTIs-related mutations were found in PCR sequences and clone sequences in pol gene region, in which 17 (94.44%) PIs-related mutations and 15 (62.50%) RTIs-related mutations were found only in the clone sequences, respectively. The results showed that the prevalence of HIV-1 drug resistance strains in this study was at a higher level (17.39%), suggesting that some samples were resistant.to existing antiviral drugs.

Long-term results of dual anti-collagen membrane in guided tissue regeneration / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To evaluate the long-term clinical effect of dual anti-collagen membranes in guided tissue regeneration (GTR).</p><p><b>METHODS</b>This randomized clinical trial included 26 teeth in 24 patients, presenting a total of 31 lesions consisting of intrabony defects and furcation defects. Twenty-six teeth were divided into two groups and treated by GTR with dual anti-collagen membranes and atelocollagen membranes, respectively. At baseline, 6 months, 1, 3 and 6 years, the following parameters were recorded: clinical attachment level, probing depth, gingival recession and the quantity of alveolar bone analyzed by computer assisted densitometry image analysis (CADIA).</p><p><b>RESULTS</b>At 1 year after GTR surgery, the gain of clinical attachment in dual anti-collagen membranes group was (3.93 ± 1.74) mm, compared with (2.25 ± 1.90) mm in atelocollagen group (P = 0.044). The increasing of the value of CADIA in dual anti-collagen membrane and atelocollagen group were (53.14 ± 21.35) and (32.96 ± 17.97), P = 0.031. At 3 and 6 years, clinical parameters remained basically stable in both groups, compared to that at 1 year after surgery.</p><p><b>CONCLUSIONS</b>The regeneration of periodontal tissues obtained by GTR with dual anti-collagen membranes could be maintained on a long-term basis.</p>

Mechanism of linoleic acid on the expression of plasminogen activator inhibitor type-1 in HepG2 cells / 中国应用生理学杂志

<p><b>AIM</b>To investigate the molecular mechanism underlying the effect of linoleic acid on plasminogen activator inhibitor type-1 (PAI-1) expression in HepG2 cells.</p><p><b>METHODS</b>HepG2 cells were exposed to different concentrations of linoleic acid and PAI-1 expression was determined by RT-PCR and colorimetric assay. Luciferase reporter gene plasmids containing four sequentially truncated fragments of the PAI-1 promoter region (-804 to +17) were constructed, and plasmids carrying constructs of Smad binding element (SBE)-site directed deletions in PAI-1 promoter were also generated using overlap extention PCR and transiently transfected into HepG2 cells, the transcriptional activity of PAI-1 was demonstrated by the luciferase activity.The effect of linoleic acid on Smad3 and Smad4 protein levels in cultured HepG2 cells was measured by Western blot analysis.</p><p><b>RESULTS</b>(1) Linoleic acid remarkably increased PAI-1 mRNA expression and transcription in varying concentrations. (2) The level of PAI-1 transcription was gradually decreased induced by linoleic acid when transfected the SBE- site directed-deletions plasmids in PAI-1 promoter at -734/-731. (3) Protein levels of both Smad3 and 4 in HepG2 cells were increased by linoleic acid.</p><p><b>CONCLUSION</b>Linoleic acid regulated the expression of PAI-1 from transcriptional level in HepG2 cells and SBE involved in the regulation, and both Smads protein and Smad signaling pathway acted main role in this procession.</p>

Protective effect of baicalin on experimental periodontitis in rats and its possible mechanisms / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To investigate the effect of baicalin on the experimental periodontitis in rats, as well as the expression of MMP-1, MMP-2, MMP-9.</p><p><b>METHODS</b>Twenty-seven adult male Sprague-Dawley rats were divided into three groups, with 9 rats in each group. A nylon thread was placed around the lower first molars of rats, which were sacrificed after 7 days. Baicalin (200 mg/kg) was administered to the experimental group by oral gavage, starting one day before the induction of periodontitis. The negative control group received vehicle (0.5% carboxymethylcellulose) alone. The blank control group did not get induction of periodontitis. The alveolar bone loss (ABL) and the area fraction (AA% ) occupied by collagen fibers were assessed. MMP-1, MMP-2 and MMP-9 protein expressions in the gingiva were detected by immunohistochemistry.</p><p><b>RESULTS</b>Baicalin treatment significantly decreased ABL compared with the negative control group (P = 0.009). AA% of collagen fibers was significantly higher in baicalin-treated group than in the negative control group (P = 0.047). Baicalin treatment significantly down-regulated the protein expression for MMP-1 (P = 0.023) and MMP-9 (P = 0.042) and decreased the expression for MMP-2 (P = 0.099) compared with the negative control group.</p><p><b>CONCLUSIONS</b>Baicalin protects against tissue damage in ligature-induced periodontitis in rats, which might be mediated in part by its inhibitory effect on the expression of MMP-1, MMP-2 and MMP-9.</p>

Effect of hypoxic preconditioning on the learning and memory ability and expressions of survivin and HSP-70 proteins in rats with focal cerebral ischemia/reperfusion injury / 南方医科大学学报

<p><b>OBJECTIVE</b>To study the neuroprotective effect of hypoxic preconditioning on reperfusion injury following ischemia and its molecular mechanism.</p><p><b>METHODS</b>Forty-eight rats were randomized into 3 groups, namely the sham operated group, ischemia/reperfusion (I/R) group, and I/R following hypoxic preconditioning group (HP+I/R). In the latter two groups, the rats were subjected to middle cerebral artery occlusion (MACO) for 3 h followed by reperfusion for 24 h to induce cerebral I/R injury. The learning and memory ability of the rats 24 h after reperfusion was assessed using Y-maze test. Immunohistochemistry was performed to quantify the expressions of survivin and HSP-70 proteins in the rat brain tissues.</p><p><b>RESULTS</b>The number of survivin- and HSP-70-positive cells in the brain tissues was significantly different between HP+I/R group and IR and the sham operated groups (P<0.05), and following I/R injury, the rats in HP+I/R group showed much better performance in the Y-maze test than those in I/R group.</p><p><b>CONCLUSION</b>Hypoxic preconditioning can protect the ischemic brain against reperfusion injury, promote recovery of the learning and memory ability and neurological functions following the injury. Up-regulation of the expressions of survivin and HSP-70 proteins might be one of the molecular mechanisms for this neuroprotective effect.</p>

Expression of Scleraxis in human periodontal ligament cells and gingival fibroblasts / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To study if Scleraxis, a basic helix-loop-helix type transcription factor, could be expressed in human periodontal ligament cells (hPDLC), bone marrow cells (hBMSC) and gingival fibroblasts (hGF), and to investigate if Scleraxis was involved in hPDLC differentiation.</p><p><b>METHODS</b>hPDLC, hBMSC and hGF were cultured. Expression of Scleraxis in hPDLC from different passages and in hBMSC and hGF was analyzed by reverse transcription polymerase chain reaction (RT-PCR).</p><p><b>RESULTS</b>Scleraxis expression in hPDLC, hBMSC and hGF were significantly different (P < 0.05). The A values of Scleraxis/beta-actin in these kinds of cells were 0.877 +/- 0.024, 0.438 +/- 0.031, 0.313 +/- 0.083, respectively. The expression of Scleraxis was the highest in hPDLC and lowest in hGF. Scleraxis expression of hPDLC decreased with increase of passages in culture.</p><p><b>CONCLUSIONS</b>Scleraxis was expressed in hPDLC, hBMSC and hGF in vitro, and may play an important role in differentiation of hPDLC.</p>

Revision of submucous resection of nasal septum / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To explore the clinical significance and surgical technique for revisionary submucous resection of nasal septum.</p><p><b>METHODS</b>Thirty-two patients who had undergone nasal septal resection were evaluated rhinologically and the causes of unsuccessful septoplasty were analysed . Based on the location and extent of deviation, the status of residual cartilage and bone, and the age of the patients, one of three incisions was chosen during septal surgeries: (1) For 5 cases with anterior, 1 with inferior and 14 with superior deviation, a "U" shaped incision at the left side of anterior edge of septum cartilage was used. (2) For 8 cases with posterior and 2 with superior deviation, the site of the incision was located just anterior to the deviation, with the aid of endoscope. (3) For 2 cases with anteroinferior deviation, because of their young age, a sublabial incision was made to surge the mucosa of the septum and base of nasal cavity, the otological electronic drill was then used.</p><p><b>RESULTS</b>Revision nasal septoplasty was successful in all cases. The symptoms resulting from septal deviation disappeared or significantly relieved. Following successful revision surgery, the treatment outcomes of concomitant nasal and/or sinusal diseases also significantly improved.</p><p><b>CONCLUSION</b>Revision nasal septoplasty requires different approaches depending on different clinical characteristics. A successful correction of septal deviation can not only relieve the symptoms derived from deviation, but also be of significance for the treatment of concomitant nasal and/or sinusal diseases.</p>

Twenty four cases of cholesterol granuloma of the paranasal sinuses / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To investigate the etiology and pathogenesis of cholesterol granuloma of the paranasal sinuses and the treatment for the disease.</p><p><b>METHODS</b>Twenty four cases of cholesterol granuloma of the paranasal sinuses treated in our hospital during the period from March 1996 to March 2003 were retrospectively analysed. All cases were verified by surgery and pathology.</p><p><b>RESULTS</b>Of all cases, 10 cases were diagnosed as chronic sinusitis, 8 cases as nasal sinus cyst, and 5 cases as nasal polyp before operation, only 1 case was considered as cholesterol granuloma. The main symptoms were nasal obstruction (20/24), rhinorrhea (18/24), dysosmia (10/24), headache (7/24), pain around the eye (5/24), double vision (2/24), et al. Different surgical approaches were selected depending upon different pathological changes. Good results were obtained in 23 cases and postoperative follow-up for at least one year showed no recurrence. Only one case received revision nasal endoscopic surgery two years after Caldwell-Luc operation because of recurrence, and remained symptom-free for three years.</p><p><b>CONCLUSIONS</b>The pathogenesis of cholesterol granuloma includes obstruction of ventilation and drainage and brooding in sinuses. Cholesterol granuloma of the paranasal sinuses seems to have a close relation with chronic sinusitis, especially sinus mucocele. The surgical approach depends upon the location, extension, and severity of the lesion. The principle of surgery is to eliminate the pathological focus and create an adequate drainage.</p>

Effects of baicalin on the expression of pro-MMP-1 and MMP-3 in human gingival fibroblasts and periodontal ligament cells / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To investigate the influence of baicalin on the IL-1beta induced pro-MMP-1 in HGF and the effects of baicalin on MMP-3 expression in periodontal ligament cells (PDLCs).</p><p><b>METHODS</b>The amount of secreted pro-MMP-1 and MMP-3 expression was detected by ELISA and cell immunochemistry.</p><p><b>RESULTS</b>(1) The amount of secreted pro-MMP-1 (3.333 +/- 0.123) microg/L increased significantly following 1 microg/L of IL-1beta, compared with control group (1.960 +/- 0.180) microg/L. Addition of baicalin to cell culture medium for 1 hour following IL-1beta decreased pro-MMP-1 secretion in a dose-dependent manner in the range of 10 approximately 1,000 microg/L. (2) 1 microg/L IL-1beta could significantly stimulate the synthesis and secretion of MMP-3 in PDLCs. (3) The baicalin could not interfere the synthesis of MMP-3, but could inhibit the release of MMP-3 from PDLCs.</p><p><b>CONCLUSIONS</b>Baicalin could inhibit the secretion of pro-MMP-1 and MMP-3 expression in IL-1beta induced HGF and PDLCs, which suggests that baicalin may play an important role in preventing and treating periodontal disease.</p>

Correction of posttraumatic deviated nose in 136 cases / 中华创伤杂志

Objective To explore a good of treating posttraumatic deviated nose. Methods Clinical data of 136 patients with posttraumatic deviated nose were analyzed.Closed nasal bone replacement was employed in 34 patients with the disease history of 20-30 days,while open rhino- plasty approach was employed in 102 patients with the disease history over 6 months to correct their postt- raumatic deviated nose,and straightening the septum and ectomizing the inferior turbinate were done if necessary.Results The follow-up was over one year.In the 34 patients with the disease history of 20- 30 days,the outcome was excellent in 28 cases and good in 6.In the 102 patients with the disease history over 6 months,the outcome was excellent in 81 cases and good in 21.The deformity of nose was corrected satisfactorily.Normal nasal shape and good ventilation were obtained.Conclusion Posttraumatic devi- ated nose deformities are often caused by delayed and inaccurate treatment.Closed nasal bone replace- ment can be employed for the patients with trauma history less than one month,and open rhinoplasty ap- proach and straightening the septum and restoration of the nasal shape are employed for other patients.In this way good results can be obtained.