PLOD2 expression and its prognosis in laryngeal cancer / 中国耳鼻咽喉头颈外科

OBJECTIVE To study the relationship of the expression of PLOD2 protein in laryngeal carcinoma and the clinicopathological features of patients. METHODS The expression of PLOD2 in paraffin-embedded specimens of 114 patients with laryngeal carcinoma was detected by immunohistochemistry. The relationship between the expression of PLOD2 and clinicopathological features was analyzed by χ2 t est, s urvival a nalysis b y K aplan-Meier method, and multivariate analysis of Cox proportional hazard model. The fresh frozen specimens of 8 patients randomly selected from the patients were detected by realtime quantitative polymerase chain reaction and Western blotting for the expression of PLOD2 in tumor tissues and adjacent normal tissues. RESULTS PLOD2 protein was associated w ith c linical s tage a nd T s tage(P <0.05). The expression level of PLOD2 protein in laryngeal squamous cell carcinoma was higher than that in adjacent normal tissue(P <0.05). Kaplan-Meier survival analysis showed that low expression of PLOD2 was associated with patient survival rate(χ2=12.484, P <0.001). Multivariate Cox regression analysis showed that PLOD2 protein expression and M stage were independent risk factors for laryngeal cancer growth (P value, both <0.05). CONCLUSION The level of POLD2 protein expression was positively correlated with clinical stage and T stage. PLOD2 protein is an independent risk factor for the growth of laryngeal cancer. The higher the expression of PLOD2 protein, the lower the prognosis of patients. PLOD2 protein expression may play an important role in the growth and prognosis of laryngeal cancer, and may be a new molecular marker for judging the growth and prognosis of laryngeal cancer.

Clinical anatomic study on the segment and adjacent of tract of congenital pyriform sinus fistula / 中华耳鼻咽喉头颈外科杂志

Objective@#To investigate the anatomic tract of congenital pyriform sinus fistula (CPSF).@*Methods@#A total of 90 patients with CPSF undergoing open surgery between August, 2007 and March, 2017 at the Department of Guangdong General Hospital were retrospectively analyzed.@*Results@#The tracts of all the fistulas actually walked far different from those of theoretical ones. A whole fistula may be divided into 4 segments according to adjacent anatomy of CPSF. The posterior inner segment to the thyroid cartilage was initial part of the fistula. It originated from the apex of pyriform sinus, then piercing out of the inferior constrictor of pharynx inferiorly near the inferior cornu of the thyroid cartilage (ICTC), and descended between the lateral branch of the superior laryngeal nerve and the recurrent laryngeal nerve. The ICTC segment was the second part of the fistula, firstly piercing out of the inferior constrictor of pharynx and/or cricothyroid muscle, and then entering into the upper pole of thyroid. The relationship between fistula and ICTC could be divided into three types: type A (medial inferior to ICTC) accounting for 42.2% (38/90); type B (penetrate ICTC) for 3.3% (3/90); and type C (lateral inferior to ICTC) for 54.5% (49/90). The internal segment in thyroid gland was the third part of fistula, walking into the thyroid gland and terminating at its upper pole (92.2%, 83/90) or deep cervical fascia near the upper pole of thyroid (7.8%, 7/90). The lateral inferior segment to thyroid gland was the last part of the fisula, most of which are iatrogenic pseudo fistula, and started from the lateral margin of thyroid gland.@*Conclusions@#CPSF has a complicated pathway. Recognition of the tract and adjacent anatomy of CPSF will facilitate the dissection and resection of CPSF in open surgery.

Relationship between Work Ⅱ type of congenital first branchial cleft anomaly and facial nerve and surgical strategies / 中华耳鼻咽喉头颈外科杂志

Objective@#To investigate the relationship between Work Ⅱ type of congenital first branchial cleft anomaly (CFBCA) and facial nerve and discuss surgical strategies.@*Methods@#Retrospective analysis of 37 patients with CFBCA who were treated from May 2005 to September 2016. Among 37 cases with CFBCA, 12 males and 25 females; 24 in the left and 13 in the right; the age at diagnosis was from 1 to 76 ( years, with a median age of 20, 24 cases with age of 18 years or less and 13 with age more than 18 years; duration of disease ranged from 1 to 10 years (median of 6 years); 4 cases were recurren after fistula resection. According to the classification of Olsen, all 37 cases were non-cyst (sinus or fistula). External fistula located over the mandibular angle in 28 (75.7%) cases and below the angle in 9 (24.3%) cases.@*Results@#Surgeries were performed successfully in all the 37 cases. It was found that lesions located at anterior of the facial nerve in 13 (35.1%) cases, coursed between the branches in 3 cases (8.1%), and lied in the deep of the facial nerve in 21 (56.8%) cases. CFBCA in female with external fistula below mandibular angle and membranous band was more likely to lie deep of the facial nerve than in male with external fistula over the mandibular angle but without myringeal web.@*Conclusions@#CFBCA in female patients with a external fistula located below the mandibular angle, non-cyst of Olsen or a myringeal web is more likely to lie deep of the facial nerve. Surgeons should particularly take care of the protection of facial nerve in these patients, if necessary, facial nerve monitoring technology can be used during surgery to complete resection of lesions.

Value of modified Killian′s method in diagnosis of congenital pyriform sinus fistula / 中华耳鼻咽喉头颈外科杂志

Objective@#To investigate the feasibility and significance of modified Killian(MK) method in the clinical diagnosis of congenital pyriform sinus fistula(CPSF) by electronic laryngoscopy.@*Methods@#The following examinations were performed for 30 suspected cases of CPSF, including the traditional electronic laryngoscopy, MK examination(modified Killian position+ head rotation+ the Valsalva maneuver), barium swallow X-ray(BSX) and CT , and a prospective comparison among them were done. Patients were divided into two groups according to their age: young age group(≤14 years old) and older age group (>14 years old). The results of MK examination from the patients were analyzed and the positive diagnostic rates (PDR) between groups were compared by using χ2 tests.@*Results@#Sinuses in 20 of 30 patients were depicted from pyriform sinus in BSX, and the PDR was 66.7%(20/30). The PRD of CT was 83.3%(25/30). The presence of air bubbles around the upper lobe of the thyroid gland or at the inferomedial edge of cricothyroid joints, morphological changes of thyroid grand as well as pseudo-fistula formation on lower neck were detected clearly on CT. Comparing to the traditional electronic laryngoscopy, the effect of exposing piriform fossa fistula by MK examination is significant(χ2=17.05, P<0.05), with the PDR of 13.3%(4/30) and 76.7%(23/30) respectively. Nevertheless, comparing to BSX and CT, there were no statistically significant differences in the effect to diagnose CPSF (χ2=0.31, χ2=0.10 respectively, P>0.05). The PDR of MK in older group is significantly higher than younger group(χ2=6.68, P<0.05).@*Conclusions@#MK examination can clearly reveal the hypopharyngeal anatomical structure and detect the sinus of CPSF .It could be a safe, feasible, convenient and economical method as an application in preoperative diagnosis and follow-up examination of clinical suspected CPSF.

Pharmaceutical Care for One Case of Uremia Complicated with Pulmonary Infection and Epilepsy / 中国药师

Objective:To explore the pharmaceutical care on an uremia patient with pulmonary infection complicated with epilepsy to provide ideas for clinical pharmacists in the clinical practice. Methods: According diagnosis and drug treatment characteristic of Chronic renal insufficiency, clinical pharmacist supplied individual treatment regiment and treatment of complications and adverse drug reactions occurred in the course of treatment, and pharmaceutical care for the patient in the whole process. Results: Pharmaceutical care on patients with uremia complicated with pulmonary should focous on the safety and rationality of the used of antibiotics, the poten-tial interaction of drugs, the treatment of adverse drug reaction, and the education of patients. Conclusion:Clinical pharmacist should supplied conventional pharmaceutical care on patients with uremia complicated with pulmonary to improve the safety and effectiveness of drug treatment.

Comparative imaging studies of congenital pyriform sinus fistula / 中华放射学杂志

Objective To investigate the image features of congenital pyriform sinus fistula (CPSF). Methods We retrospectively analyzed the clinical features and preoperative images of 80 patients with confirmed diagnosis of CPSF by surgical and pathological outcome in Guangdong general hospital from January 2007 to December 2014. At least one of the following imaging examinations were performed for all the patients, including Barium swallow X-ray (BSX), CT and MRI. Among them, 63 patients were examined with BSX, while 42 patients underwent plain and enhanced CT scans, wherein 40 of them were exanimated shortly after BSX. Thirty-two patients underwent plain and enhanced MRI scans. Patients were divided into two groups according to their age, young age group (≤14 years old) and older age group (>14 years old). Furthermore, they were also grouped based on inflammatory or quiescent stage clinically. The images of BSX, CT, and MRI from the patients were analyzed and the positive diagnostic rates (PDR) between groups were compared by using χ2 tests. Results For the patients examined with BSX, sinuses in 35 of 63 were depicted from pyriform and fistulas in 9 of 63 were depicted from the pyriform. The overall PDR of BSX was 74.6%(47/63),wherein 46.2%(12/26)in young age group , 94.6%(35/37)in older age group, 52.9%(9/17) in inflammatory stage group ,and 82.6%(38/46)in quiescent stage group. The inter-group differences were statistically significant (χ2 were 18.911 and 5.766,both P0.05).Conclusions BSX could be a screening method for suspected cases of CPSF in quiescent stage. However, the PDR could be affected by many factors (age and inflammation). CT and MRI could provide valuable information for diagnosis. An examination combined BSX and CT is preferred to improve the positive detective rate of CPSF.

Analysis of osteoporosis related factors in premenopausal patients with early rheumatoid arthritis / 中华风湿病学杂志

Objective To identify the clinical features and risk factors of early rheumatoid arthritis (RA)-associated osteoporosis in premenopausal women. Methods A total of 76 premenopausal women with early RA were randomly selected in the Department of Kidney and Rheumatology in the hospital. A total of 84 health cases were randomly selected in our hospital as controls. Bone mineral density (BMD) was determined using dual energy X-ray absorptiometry (DEX). Bone metabolism (CTX, PINP) and inflammatory cytokines (IL-17, IL-6, TNF-α) were examined with quantitative enzyme-linked immune-sorbent assay (ELISA). Quantitative data were expressed as x ±s deviation and the data were compared between groups using non- parametric test (Z value). Multi-group comparison was performed with variance analysis. Qualitative data were compared with Fisher's test. Logistic regression was used to investigate the risk factors. Results ①Compared with the control group, BMD in the premenopausal women with early RA group [neck: (0.802 ±0.193) g/cm2, GT zone: (0.923±0.033) g/cm2, L1: (0.862±0.011) g/cm2] was significantly decreased [(0.981±0.032) g/cm2, (0.771 ±0.023) g/cm2, (0.912 ±0.012) g/cm2, F=14.401, 19.860, 6.560, respectively, both P<0.05). The prevalence of osteoporosis in this group was 7%(5/76), which was higher than controls 1%(1/84). ② According to values of Bone meta-bolism [(CTX: (0.37±0.21) ng/ml] and inflammatory cytokines, TNF-α: (9.8±4.1) pg/ml, IL-6: (33.6±5.7) pg/ml and IL-17: (129±24) pg/ml were markedly increased in premenopausal women in early RA group [(0.24 ±0.09) ng/ml, (6.7 ±1.9) pg/ml, (1.5 ±0.4) pg/ml, (45 ±7) pg/ml, Z=2.722, 5.932, 7.501, 4.370, respectively, both P<0.05]. ③ The premenopausal women with early RA group with osteoporosis were signifi- cantly difference with controls in BMI [(9±3) kg/m2 vs (16±3) kg/m2], bone density of neck [(0.85±0.20) ng/ml vs (0.88±0.14) g/cm2], L2 [(0.75±0.23) g/cm2 vs (0.88±0.14) g/cm2], L3 [(0.87±0.07) g/cm2 vs (0.93±0.14) g/cm2], L4 [(0.92±0.12) g/cm2 vs (0.94±0.16) g/cm2], serum ESR [47.8(22.0, 76.0) mm/1 h vs 18.8(8.7, 35.2) mm/1 h] and DAS28-CRP (5.3 ±1.2 vs 3.8 ±1.2) F=0.68, 14.632, 26.114, 20.931, 36.582, Z=3.21, 6.58, respectively, both P<0.05. ④ Logistic regression showed that IL-6 (Wald χ2=5.78, P=0.021), PINP (Wald χ2=5.12, P=0.031), CTX (Wald χ2=9.17, P=0.003), ESR (Wald χ2=9.24, P=0.011), DAS28-CRP (Wald χ2=17.28, P=0.001) were significantly positively correlated with osteoporosis. Moreover, ordered unconditional Logistic regression analysis of the variables (IL-6, PINP, CTX, ESR, DSA28) described above showed that DAS 28-CRP score [OR=1.58, 95%CI: (1.10, 2.20)] was the most important risk factor for osteoporosis in premenopausal women with early RA. Conclusion The incidence of osteoporosis is high in premenopausal women with early RA than healthy cases. DAS 28-CRP score is the important risk factor for premenopausal women with early RA- associated osteoporosis. Measures relieve symptoms of RA can help to prevent and treatment osteoporosis.

Preliminary experiences of endoscopic CO₂ laser cauterization for treatment of congenital pyriform sinus fistula / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To evaluate the effectiveness of endoscopic CO₂ laser cauterization (ECLC) as a definitive treatment of congenital pyriform sinus fistula (CPSF).</p><p><b>METHODS</b>Eleven patients with CPSF underwent ECLC between January 2011 to March 2013 at Guangdong General Hospital. Of the 11 patients aging from 20 to 672 months (median: 60 months), there were 4 males and 7 females; 10 lesions located in the left necks and 1 located in the right; 6 untreated previously and 5 recurrent; 10 sinus (with internal opening) and 1 fistula. The presentations included reduplicative neck swelling, pain, or a fistulous opening with purulent discharge at the anterior neck region. Preoperative examinations included barium esophagogram, CT, MRI and so on. Six patients had at least received one time incision and drainage procedure previously. All patients had been treated with antibiotics in acute infection period. After inflammation subsided, the openings of pyriform sinus fistula were confirmed by esophagoscopy and then ECLC on internal opening was routinely performed.Esophagoscopy was carried out again by 3 months later in every patient, the same technique would be performed immediately if the internal opening was not completely closed.</p><p><b>RESULTS</b>The existence of an orifice in the pyriform fossa was identified by esophagoscopy in 11 patients. In 9 patients, the treatment was successful and the internal opening completely closed after the first ECLC. However, the other 2 patients received the second cauterization 3 months later because of the incomplete close of the internal opening. The average number of treatments was 1.2 times. No complications such as dysphagia, hoarseness occurred with the endoscopic procedure. Both the patients and their families were satisfied with the cervical appearance. All the patients had an uneventful recovery and remained no symptom from 11 to 35 months (median: 24 months).</p><p><b>CONCLUSION</b>The endoscopic CO₂ laser cauterization is safe, effective, repeatable and minimally invasive, which can be suggested as first-line treatment for congenital pyriform sinus fistula.</p>

Endoscope-assisted superficial parotidectomy via retroauricular hairline approach: anatomical study / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To provide anantomical basis for the endoscope-assisted partial superficial parotidectomy via retroauricular hairline approach (EASPRHA) and assess its feasibility and safety.@*METHOD@#The surgical anatomy of retroauricular hairline region and parotid gland region were observed in 15 fresh human cadavers (30 halves). The EASPRHA was performed on 5 human cadavers (10 halves). After the procedure, the related vascular and neural structures were evaluated.@*RESULT@#The retroauricular hairline region extends between superficial musculoaponeurotic system and superficial cervical fascia. On the superficial surface of the upper sternocleidomastoid lie the lesser occipital nerve, the great auricular nerve and the external jugular vein. The bifurcation of great auricular nerve is(22.85 ± 2.01) mm from the bottom of earlobe. The parotid gland region extends between parotidomassteric fascia and parotid gland parenchyma. The facial nerve emerging from the stylomastoid foramen runs across the superficial surface of base of styloid process, passes through the interspace between cartilage of external acoustic meatus and posterior belly of digastric muscle, and enters the parotid gland. The bifurcation of facial nerve trunk is (19.10 ± 3.10)mm from the mastoidale and (39.49 ± 5.78) mm from the mandibular angle. Above the posterior belly of digastric muscle, the posterior auricular artery arises from the posterior wall of the external carotid artery with its main stem running over the superficial surface of facial nerve trunk. In all endoscope-assisted operations, the partial superficial parotidectomy was successful without the need for an additional incision. No major neurovascular damage wasobserved.@*CONCLUSION@#A thorough knowledge of the surgical anatomy of retroauricular hairline region and parotid gland region is an essential requirement in performing the safe and feasible EASPRHA.

The clinical application of modified rhytidectomy incision in superficial parotid tumor surgery / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To evaluate the modified rhytidectomy incision in superficial parotidectomy.@*METHOD@#Thirty-five patients with superficial parotid tumor were included in this study. A modified rhytidectomy incision often used in facial plastic surgery was used for superficial parotidectomy and subtotal superficial parotidectomy with preservation of facial nerve and great auricular nerve. The follow-up study included the exposed region, the cosmetic effect of this approach and the rate of complication.@*RESULT@#All patients healed without salivary fistula, and were satisfied with this modified approach. Temporary paralysis of the marginal mandibular branch of facial nerve were found in five patients, and six patients felt insensible around earlobe after operation. They all recovered in 1 to 3 months after surgery, no recurrence was happened during follow-up in 36 to 60 months (median follow-up period was 48 months).@*CONCLUSION@#The modified rhytidectomy incision provided good exposure, had less complication and better cosmetic outcome.

A comparison between endoscopic-assisted second branchial cleft cyst resection via retroauricular hairline approach and conventional second branchial cleft cyst resection / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To assess the feasibility, risks and advantages of endoscope-assisted second branchial cleft cyst (SBCC) resection via the retroauricular hairline approach (RHA) by comparing with conventional trans cervical approach.@*METHOD@#Using prospective clinical controlled study, in twenty five patients with SBCC, 13 cases underwent endoscope-assisted resection via the RHA, 12 cases underwent conventional transcervical approach resection. Preoperatively, the sizes, locations and adjacency of all lesions were evaluated by ultrasonography, CT or MRI. Pathologic diagnoses of all cases were identified as SBCC using fine needle aspiration biopsy. Two groups were compared at length of incision, operation time, bleeding, incision cosmetic result, complication etc.@*RESULT@#All 25 operations were successfully performed. Length of incision and operation time in endoscopic group were significantly longer than that of the transcervical group (P < 0.05). After three months, the mean subjective satisfaction score of incision scar in the endoscopic group was significantly higher than that of transcervical group (P < 0.01). In endoscopic group, 1 cases (7.7%) with temporary numbness of earlobe and 1 case (7.7%) with a darkened color change of the flap margin at the incision angle were found postoperatively. However, they were recovered within 1 month. All the 25 patients were disease free with a follow-up from 18 to 36 months (median follow-up: 26 months).@*CONCLUSION@#Endoscope-assisted SBCC resection via RHA is feasible and safe for the treatment of SBCC. In comparison with the transcervical approach, this method can provide an invisible incision and better cosmetic re suits without significant complications.

The configuration of soft palate muscular phenotype in obstructive sleep apnea hypopnea syndrome / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To study the mRNA expression of muscle phenotype and collagen of soft palate and pathology in obstructive sleep apnea hypopnea syndrome (OSAHS).@*METHOD@#We used the Real-time PCR to test the mRNA expression of soft palate muscle myosin heavy chain (MyHC) phenotype and collagen in 12 OSAHS patients and 8 control patients. We also distinguished the muscle isoforms I , II with ATPase staining, then counted the numbers of isoforms muscle fiber.@*RESULT@#The mRNA expression of OSAHS group was more than control group in II A MyHC phenotype (P<0.01). The number of OSAHS group muscle fibre I isoform was less than control group with pH4. 3 ATPase staining (P<0.05).@*CONCLUSION@#Compare to control group, the enhancement happened in the mRNA expression of II A MyHC phenotype which can increase the velocity and power but de crease the enduring quality of muscle in OSAHS, and the reduce be in the I MyHC isoform of muscle fiber that can cause muscle velocity become slower and persistency become longer in OSAHS patients.

Clinical observation of methyprednisolone combined with high dose immunoglobulin in treatment of severe bullous skin disease / 中国基层医药

Objective To explore the effect of methylprednisolone combined with high dose immunoglobulin (IVIg) in treatment of severe bullous skin disease. Methods 51 cases of severe bullous skin diseases were randomly divided into control group and observation group and control group received conventional methylprednisolone treatment on the basis of the observation group in this high-dose injection combined with IVIg,therapeutic effect were observed.Results The observation group hospitalization days ( 15.6 ± 6. 2) d, hormone usage ( 87. 6 ± 13.7 ) mg, hormone reduction time(8. 6 ±2. 4) d,were obviously lower than the control group(23. 1 ±6. 3)d,( 105.3 ± 1.64) mg, ( 13.8 ±4. 1 ) d ( t = 2. 771,3. 102,3. 219, P ＜ 0. 05 ). The observation group total effective rate was significantly higher than the control group( x2 =6. 248,P ＜0. 05). The observation group therapy effect-acting period and obviously subsidise lesions time was(8. 9 ±2. 4)d, (17.6 ±3. 7)d respectively,were significantly lower than the control group( 13. 1 ±3. 8) d, (23. 6 ± 5. 1 ) d, the differences between the two groups were statistically significant ( t = 2. 893,3. 347, P ＜0. 05). The observation group complication occurred in 5 cases were lower than those of the control group of 9 cases (x2 = 5.245 ,P ＜ 0. 05 ). Conclusion Methylprednisolone combined with high dose IVIg treatment of severe bullous skin disease could shorten the course and speed up the restoration of skin lesions, reduce and alleviate the glucocorticoid dosage and side effects, improve the cure rate , and it was worthy of promotion.

Identification of predicted epitopes of HLA-A*0201-restricted cytotoxic T lymphocytes derived from human papillomavirus type 11 E7 antigen / 中华微生物学和免疫学杂志

Objective To screen and identify the predicted epitopes of synthesized HLA-A*0201restricted CTL derived from HPVll E7 antigen.Methods Five HPVll E7 CTL epitope peptides and terramers consisting of HLA-A*0201 were selected by way of computer and synthesized by Sanquin company,including HPVllE7 7-15(TLKDIVLDL),15-23(LQPPDPVGL),47-55(PLTQHYQIL),81-89(DLLLGTLNI)and 82-90(LLLGTLNIV).These peptides binding to human peripheral blood-derived DCs were tested for their ability to activate T cells isolated from peripheral blood lymphocytes of HLA-A*0201 healthy individuals.the number of specific tetramer+CD8+T cells by flow cytometry,the level of the section of IFN-γ by ELISA,and the ability of the CTL to kill the target cells were observed.Results The immature DCs could be fully activated by all the five HPV11 E7 peptides.Peptide-loaded mature DCs were able to stimulate the epitope-specific T cells responses in vitro.An increased frequency(P<0.05)of T ceils specific for the E7 7-15 epitope compared to other epitopes of HPV11E7.The epitope-specific CTL of E7 7-15 induced by the activated DCs specifically killed HPV11E7 expressing 293 cell line,and in a ratio of 50:1,the specific cytolytic activity was the strongest than the others(P<0.05).Conclusion DCs loaded with HPV11 E7 7-15(TLKDIVLDL)peptide can induce highly effective and specific ectogenic processed epitopespecific CTL responses in vitro.This peptide may be the candidate for development of CTL based vaccine in the treatment of HPV infeetions.

The prevalence rate of three species of integrons in multi-drug resistant Pseudomonas aeruginosa and investigation of class Ⅰ integron structure in Jiangyin area / 国际检验医学杂志

Objective To investigate the resistance rate of Pseudomonas aeruginosa to several commonly used antibiotics,as well as the prevalence status of three species of integrons in multi-drug resistant Pseudomonas aeruginosa from 2005 to 2006 in our hospital,and to identify the genetic structure of class Ⅰ integron in in our hospital.Methods Drug resistance slip method was applied to detecting the resistant rates of 100 isolates of Pseudomonas aeruginosa to ciprofloxacin,cefotaxime,gentamicin and imipenem.Boiling method was adopted to abstract DNA template of 100 isolates of Pseudomonas aeruginosa,and PCR assay adopted to identify the prevalence rate of three species of integrons and class Ⅰ integron structure.Results The resistant rates of 100 isolates of Pseudomonas aeruginosa to ciprofloxacin,cefotaxime,gentamicin,cefoxitin,tobramycin and imipenem were 32%,45%,82%,37%,39% and 43% respectively.The prevalence rates of three species of integrons was as follows:class Ⅰ 53%,Ⅱ 21% and Ⅲ 5%.Sequence analysis displayed there existed box gene dfrA17 and aadA2 in variable region of class Ⅰ integron.Conclusion The resistant rates of Pseudomonas aeruginosa to four drugs are elevated,especially to gentamycin.Multi-drug resistance may be partly due to prevalence of class Ⅰ integron.