Gauze Research Articles

Clinical analysis of vacuum sealing drainage combined with artificial dermis in repairing chronic wounds

Objective To observe the clinical efficacy of vacuum sealing drainage (VSD) combined with artificial dermis in repairing chronic wounds.Methods 66 cases of chronic wounds were randomly divided into control group and observation group,33 cases in each group.Control group was treated by antiinfection,microcirculation improvement,and wounds were covered by gauze soaked with povidone iodine cream with regular dressing change.Observation group was treated by anti-infection,microcirculation improvement and early vacuum sealing drainage (VSD),wounds were covered by artificial dermis (PELNAC) to induce dermal reconstruction after granulation tissue grew.Some bigger wounds were treated by skin grafting on base of satisfying growth of granulation tissue.Results In control group,the average hospital stay was (55.3 ± 1.2) days,30 cases received skin grafting or skin flap transplantation,wounds in 3 cases healed by wound dressing with remarkable scar formation.In observation group,the average hospital stay was (31.6 ± 1.2) days,bigger wounds in 20 cases were treated by skin grafting after wound bed preparation (granulation tissue growth) by artificial dermis,wounds in other patients were covered by artificial dermis with little scar formation.Conclusion Vacuum sealing drainage combined with artificial dermis in repairing chronic wounds can accelerate the healing speed of chronic wounds,reduce scar formation and shorten hospital stay. Key words: Vacuum sealing drainage (VSD); Artificial dermis; Repair; Chronic wounds

Evaluation of the effect of the silver sulfadiazine lipid water gel dressings combined with VSD on treatment of deep wound infection

Objective To observe the effect of silver sulfadiazine lipid water gel dressings combined with vacuum sealing drainage （ VSD） on the treatment of deep wound infection .Methods From April 2010 to December 2012, 44 patients with wound clinic were randomly divided into treatment group （n=24） and control group （ n=20 ） .And treatment group received water gel dressing with silver sulfadiazine lipid binding VSD treatment,while control group received theordinary sterile gauze combination VSD treatment .Then, patients dressing pain , bacterial clearance rate at the same point , wound cleaning time , the number of times of plugging and times of changing drainage tube were observed .Results Pain with the treatment group was mild compared with the control group,and the difference was statistically significant （Z =-4.036, P ＆lt;0.05）.Bacterial clearance rate （94% vs 73%）, wound cleaning time （12 d vs 28 d）, plugging （0% vs 70%）, times of changing drainage tube （3.2 vs 9.1） in treatment group were significantly better than that in control group （χ2 =21.32,P＆lt;0.05）.Conclusions Silver sulfadiazine lipid water glue dressing combined with VSD can effectively improve the rate of bacterial clearance , prevent the drainage tube blockage , reduce the number of drainage tube replacement , shorten wound cleaning time , reduce the patient ’ s degree of pain , and be shorter hospital stay . Key words: Dressing,silver sulfadiazine lipid water glue; Infection; Vacuum sealing drainage; Deep wound

A novel technique for micro-reconstruction of posterior wall of external auditory canal and tympanum in patients with chronic supprative otitis media using pedicled temporalis myofascia

Objective To explore a novel surgical treatment for chronic suppurative otitis media (CSOM) and evaluate its treatment effect.Methods All 97 patients with chronic suppurative otitis media were chosen to be treated using this new surgical method.The skin of the external auditory canal was maintained intact.Open radical mastoidectomy was used to complete clean-up lesions ; the fascia of pedicled temporalis myofascia (PTM) was used to repair the tympanic membrane.The pedicled temporalis fascia,pedicled postauricular periosteal flap and intact skin of the external auditory canal were used in reconstruction of the posterior wall of external auditory canal.Pure tone audiometry (PTA) was performed before and after surgery,recording the air conduction and bone conduction thresholds at 0.5 kHz,1.0 kHz,2.0 kHz,4.0 kHz.The average of the patient's air and bone conduction hearing thresholds was recorded at the 4 frequencies.External auditory canal gauze was removed 3 weeks after surgery.All subjects were followed up for over 2 years.Comparison of hearing thresholds (PTA) was made ① Before and 4 weeks after surgery.② Before and 2 years after surgery.Hearing function comparison include air conduction (AC),bone conduction (BC) and air-bone gap (ABG) analysis.SPSS 16.0 was used in statistical analysis.Pre-and postoperated AC,BC and ABG were compared using T-test.P ＜ 0.05 was considered statistically significant.Results The healing rate of post-operated tympanic membrane was 95.88％ (93/97).Ninty-six ears had 2-year follow-up,and 1 patient was lost in follow-up.There were 2 patients presented with eardrum perforation during the follow-up,and the 2-year healing rate of tympanic membrane perforation was also 93.85％ (92/97).In 96 ears with 2-year followed-up,the average of pre-AC was (52.10 ±3.96) dB,the average of post-AC was (35.67 ±2.52) dB; the average of preABG was (36.6 ± 5.2) dB,and the average of post-ABG (± SD) was (12.14 ± 6.20) dB.Statistical analysis showed significant difference between preoperative and postoperative AC or ABG values (P ＜ 0.05).Conclusion The present surgical procedure broke through the existing conventional mastoidectomy of making a surgical incision in the posterior wall of the external auditory canal.This procedure cleared the lesion completely and preserved the physiological function of the external auditory canal.The acoustic systems and state of gasification to the mastoid tymnpanum were reconstructed,rehabilitated and maintained.The healing rate of hearing and tympanic membrane perforation was improved. Key words: Chronic suppurative otitis media; Tympanoplasty; External acoustic meatus; Tissue flaps

The study of bioactive dressings to promote wound healing

Objective To study the role of developed chitosan biological activity dressings on wound healing.Methods Establish 10 sterile wound and infection wound animal models by clean level Wistar rats on both sides of the spine preparation area of about 2.0 cm × 1.0 cm and Autologous comparison,all animal were divided into experimental group and control group,experimental group covered with chitosan bioactive dressing,control group covered with Vaseline gauze (hypertonic saline gauze).We observed wound infection,tissue reaction,the growth of granulation and healing on 3,7,10,14 days after surgery.Both groups were regularly dressing until wound healing,comparing two dressing effect on wound healing.Results The wound healing time were (9.6 ± 1.5) and (15.3 ± 2.6) days in experimental group in sterile wound and infection wound,which were (14.6 ±2.1) and (19.0 ±3.2) days in control group.The therapeutic effect of experimental group was better than that of the control group,the difference was significant difference (P ＜ 0.05).Conclusion Developed chitosan biological activity dressings can control infection and promote wound healing. Key words: Biological activity ; Chitosan; Dressing; Wound healing

Study on the improvement effect of nursing method for urinary stoma

Objective To investigatethe improvement and effectiveness of nursing method for urinary stoma. Methods According to hospital admission time, 40 patients with urinary ostomy were selected and randomly divided into observation group and control group, with 20 patients in each group. When replacing chassis for the first time after urinary ostomy, the patients in the control group were given the conventional nursing method for urinary stoma, and the patients in the observation group were given the combination nursing method of DuoDERM Extra Thin dressing, leak-proof cream, stoma powder, gauze, 3M high strength belt and lumbar belt, as well as the conventional method. The damage of skin around the stoma, the occurrence of urine leakage in abdominal incision, the time of chassis continuous utilization and the cost were compared between the two groups. Results The incidence rate of the damage of skin around the stoma in the observation group was 5.0%, and lower than that of 35.0% in the control group, the difference was statistically significant （ x2 = 3. 906, P 〈 O. 05 ）. The incidence rate of urine leakage in abdominal incision was 25.0%, and lower than that of 60.0% in the control group, the difference was statistically significant （ x2 = 5.013, P 〈 O. 05 ）. The average time of chassis continuous utilization in the observation group was （4. 2 ± 1.9） days, and higher than that of （ 2.9 ± 1.7 ） days in the control group, the difference was statistically significant （ t = 2. 279, P 〈 0.05 ）. There was no statistically significant difference in the average daily cost between the two groups （ t = - O. 747, P 〉 O. 05）. Conclusions Mter urinary ostomy, the application of DuoDERM Extra Thin dressing used to protect incision, leak-proof cream used to prevent leakage, stoma powder used to protect the skin, gauze used to drain, 3M high strength belt and lumbar belt used to fix chassis, can decrease complications, prolong the time of chassis continuous utilization and reduce medical costs. Key words: Nursing; Urinary stoma; Improvement; Effectiveness

Different early nursing methods for catheter outlet in patients undergoing peritoneal dialysis

Objective To explore some effective early nursing methods for the catheter outlet of peritoneal dialysis.Methods 60 patients undergoing peritoneal dialysis were randomly divided into a research group (30 cases) and a control group (30 cases).The catheter outlet of the research group was covered with wound dressing (10 cm × 10 cm,3M) after being disinfected with iodophor and normal saline,while the catheter outlet of the control group was traditionally covered with sterile gauze after being disinfected with iodophor and normal saline.The incidence of abdominal infection,skin itching,and inflamed redness were compared between the 2 groups.Results 26 cases had no sign or symptom of exposure,one case got inflamed redness around the outlet,and 3 cases underwent skin itching in the research group.However,only 8 cases had no sign or symptom of exposure,10 cases got inflamed redness around the outlet,11 cases had skin itching,one case got abdominal infection.There was statistical difference in the efficacy between the 2 groups.Conclusions That the catheter outlet of peritoneal dialysis is covered with wound dressing (10 cm × 10 cm,3M) after being disinfected with iodophor and normal saline is easy to learn and helpful for fasting the catheter,can bring convenience,comfort,and satisfaction to the patients,and is thought highly by the patients. Key words: Peritoneal dialysis; Catheter outlet; Early stage; Nursing

The effect of improving the fixed methods through oral endotracheal intubation

Objective To explore safe,comfortable effective of fixed method through oral endotracheal intubation.Methods A total of 110 cases of patients through oral endotracheal intubation were divided into observation group and control group by hospital number of odd and even,observation group was treated with a gauze attached to the middle of the tape length,the first fixed around the neck,pad a gauze at the left and right tape through the mouth,then left and right ends of the tape were reversed wound clockwise and counterclockwise intubation and dental after one roll and pad attached to the opposite side of the tape.Control group was used traditional fixed methods of tape.The firmness,comfort,the number of cases of unplanned extubation of two fixed methods were observed.Results The solid and comfortable degree of fixed method in observation group were significantly better than those of control group (P ＜ 0.01),the rate of self tube drawing was lower than that of control group (P ＜ 0.05).Conclusions Improved methods of endotracheal intubation is more firmly fixed,security,which is increased patient comfort,improved the quality of nursing,and is worthy of clinical application. Key words: Oral endotracheal intubation; Fixed methods; Nursing

Effect of compound lysostaphin disinfectant in treatment of gram-positive coccus infection of burn wounds

Objective To compare the effect of Baikerui compound lysostaphin (FE complex phosphoesterasum) disinfectant and povidone iodine in treatment of burn wound infection resulted from gram-positive (G ±) coccus.Methods The study involved 60 patients with superficial second degree burns (1％-5％ TBSA； age range of 18-50 years).All the patients received bacterial culturing of wound secretions prior to treatment.Every 20 patients were indentified with infection of staphylococcus aureus (SA),staphylococcus epidermidis (SE),and enterococcus (EC) respectively and randomized into control group and experiment group,with 10 patients per group.Patients allocated to the experiment group were covered with four-layer sterile gauze soaked into the Baikerui compound lysostaphin disinfectant,while the patients in the control group were treated with four-layer sterile gauze soaked into the povidone iodine.Dressing was changed once a day.Wound culturing was performed again at each day of the 5-day treatment.Wound healing was compared among each group.Results SA wound infection turned negative for all the 10 patients in experimental group and three patients in control group (P ＜ 0.01).SE wound infection turned negative for all the 10 patients in experimental group and six patients in control group (P ＜ 0.05).EC wound infection turned negative for nine patients in experimental group and seven patients in control group (P ＞ 0.05).Mean wound healing time was (10.87 ± 1.93) days for experimental group and (13.31 ± 2.89) days for control group (P ＜ 0.05).Conclusion Baikerui compound lysostaphin disinfectant can effectively prevent burn wound infection with common G + coccus and accelerate wound healing. Key words: Burns; Staphylococcal skin infection; Compound lysostaphin disinfectant

Contamination of surgical materials by exfoliated cancer cells during gastric carcinoma operation

To explore the exfoliated cancer cell contamination in different surgical materials during the malignant gastrectomy. Ninety gastric cancer patients undergoing gastrectomy were prospectively enrolled in this study. The operation materials of these 90 gastrectomy were divided into 5 groups: surgical instruments (A), gloves for surgeons (B), gloves and gauzes of scrub nurse (C), gauzes for hemostasis (D), anastomosis instrument (E). The rinse fluid of materials was cultured to verify positive cancer cells. Associations among different pathological stages, differentiations, materials and positive cancer cells rates were examined. Stage II and III patients had higher positive rates of exfoliated cancer cell contamination than stage I patients [26.5 (9/34) and 47.5% (21/46) vs. 10.0% (1/10),P=0.046]. Low differentiated adenocarcinoma group had higher positive rate than moderately and well differentiated adenocarcinoma groups [44.8% (26/58) vs. 16.7% (4/24) and 12.5% (1/8), P=0.020]. Positive cancer cell rates of 5 kinds of materials were as follows: 12.2% (11/90) in A group, 6.7% (6/90) in B group, 22.2% (20/90) in C group, 15.6% (14/90) in D group and 3.3% (3/90) in E group, and the differences were significant (P<0.01). Different operation materials have different risks to be contaminated by cancer cells, which is associated with the contact frequency, cancer staging and pathological classification.

Clinical observation of continuous compress with multiple drugs mixed in the treatment of skin lesions caused by chemotherapeutic drugs extravasation

Objective To explore the effects of continuous compress with multiple drugs mixed in the treatment of skin lesions caused by chemotherapeutic drugs extravasation.Methods Totals of 32 cases of cancer applied peripheral superficial vein chemotherapy and occurred drugs extravasation from Jan.2009 to Dec.2010 as control group,lidocaine 100 mg,dexamethasone 3 mg and saline 5 ml were used through circular hypodermic injection around the point of puncture;Totals of 33 cases applied peripheral superficial vein chemotherapy and occurred drugs extravasation from Jan.2011 to Jun.2012 as treatment group,in addition to the therapeutic methods mentioned above,local continuous compress with gauze soaked by multiple drugs (50％ magnesium sulfate,2％ lidocaine,dexamethasone,5％ sodium bicarbonate,anisodamine,vitamin B12,saline) mixed were implemented.Results The treatment group had a higher overall response rate(100.0％),and more effective rate(75.8％),with the control group overall response rate(78.1％),and more effective rate(46.9％),and the difference was statistically significant (x2 =5.97,5.73,respectively;P ＜ 0.05).The cases of swelling disappeared within 24 hours of treatment group was significantly more than that of control group(16 vs 7),while the cases of swelling disappeared within 73-120 hours of treatment group was significantly less than that of control group(4 vs 12),with significant difference(x2 =5.03,5.64;P ＜ 0.05).Conclusions On the base of using lidocaine to cure skin lesions caused by chemotherapeutic drugs extravasation,continuous compress with gauze soaked by multiple drugs mixed is an effective therapy. Key words: Extravasation of diagnostic and therapeutic materials; Chemotherapy drug; Skin lesion; Multiple drugs mixture; Continuous compress

Analysis of operative contamination of surgical gear by exfoliated cancer cells in hepatocellular carcinoma: a retrospective study on seventy-eight patients

Objective To investigate the risks of operative contamination of surgical gear by exfoliated cancer in 78 patients who received surgery for hepatocellular carcinoma.Methods Surgical gear from 78 patients who were operated for primary hepatocellular carcinoma were divided into four groups:A.surgical instruments; B.surgeon gloves; C.gauze and gloves used for cleaning equipment; D.gauze and gauze pad used for cleaning operation area.Saline was used to soak the surgical gear followed by low speed centrifugation.The precipitate was stained and then observed for cancer cells.Results The positive rates of cancer cell on surgical gear were significantly associated with the TNM stage,tumor location,tumor size,and surgical approach.The positive rate of liver cancer cell on surgical gear in TNM stage Ⅲ was higher than TNM stage Ⅰ / Ⅱ (56.3％ vs 21.7％,P=0.002).The positive rate of cancer cell on surgical gear was significantly related to tumor size and location (P=0.006,P=0.001).The positive cancer cell detection rate of non-anatomical liver resection was significantly higher than anatomical resection (53.8 ％ vs 26.9 ％,P =0.019).The positive cancer cell detection rate was significantly associated with different types of surgical gear (P=0.008),in which group C showed the highest cancer cell detection rate.Conclusion The risks of cancer cell contamination of surgical gear were significantly associated with progression of hepatocellular carcinoma,tumor size,location and surgical approach,and also associated with the frequency in the use of surgical gear,the operation scope of contact and the nature of surgical gear. Key words: Hepatocellular carcinoma; Operation materials; Pollution; Exfoliated cancer cell

The curative effect of the AnduofuPVP-I local soaking on the paronychia therapy

Objective To explore the clinical effects of 0.5％ anduofuPVP-Ⅰ local soaking on the paronychia therapy.Methods The outpatients were randomly divided into two groups observation group and control group.The observation group adopted 0.5％ anduofuPVP-Ⅰ local soaking 30 minutes,dressing change and sterile gauze dressing; the control group adopted dressing change directly and sterile gauze dressing.The therapeutic effect was compared between two groups.Results The total effective rate was 97.56 in the observation group.and 73.36 in the control group.There was significant difference (P ＜ 0.005) Conclusions 0.5％ anduofuPVP-Ⅰ local soaking can treat paronychia effectively. Key words: Paronychia; AnduofuPVP-Ⅰ; Local soaking; Nursing

Clinical curative effect analysis on double cavity latex catheter in treatment of axillary sinus mucosal collapse

Objective To observe the clinical efficacy of double-lumen latex catheter in maxillary sinus mucosa collapse.Methods 40 patients during maxillary sinus surgery process suffered maxillary sinus mucosa collapse were given dual-chamber latex catheter reset.And then we compared its efficacy with that of other 40 patients using vaseline gauze.Results With double-lumen latex catheter repair for the maxillary sinus mucosa collapse,the mucosal repair time,the degree of post-operative pain,the degree of swelling of the face,and the amount of bleeding were obviously better than those using vaseline gauze,showing significant difference (P＜0.05).Conclusion Double-lumen latex catheter efficacy in the treatment of maxillary sinus mucosa collapse has better effect than vaseline gauze,it can shorten the healing time of patients,effectively alleviate the pain and swelling of the face,with less amount of bleeding. Key words: Double-lumen the latex catheter; Maxillary sinus mucosa collapse; Vaseline gauze

Management of acute traumatic eyelid defects

Objective To investigate the clinical characteristics,operation techniques and keys for acute traumatic eyelid defects.Method 34 cases with traumatic eyelid defects,in which none of the wounds could be repaired by direct closure.In anterior lamella eyelid defects,moderate defects (less than 2/3 involvement) were repaired by advancement,rotation or transposition flaps,and skin grafts from posterior auricular skin and medial upper arm were used for large defects (more than 2/3) followed by tarsorrhaphies afterwards.Moderate full-thickness eyelid defects (＜ 1/2 involvement) were repaired by semicircular flaps with lateral cantholysis,while extensive full-thickness defects (＞ 1/2 involvement) were repaired layer by layer through skin flaps,preserved sclera (replacing the tarsal plate) and advanced conjunctival flaps followed by tarsorrhaphies afterwards.For those special patients with heavy systemic problem or trauma,after copious irrigation washes and through debridement the wound were covered by iodoform gauzes for secondary repair.Result 19 cases of the 25 cases with anterior lamella upper eyelid defects were repaired by various skin flaps,and recovered well.The other 6 cases repaired by skin grafts.There were 9 cases of full-thickness eyelid defects,5 cases with ＜ 1/2 involvement repaired by semicircular flaps with lateral cantholysis and recovered well,and 2 cases were repaired layer by layer through skin flaps,preserved sclera and advanced conjunctival flaps.In the remainder 2 cases,covered by iodoform gauzes there was no infection in the wound,and the eyelid were reconstructed 7 and 20 days later respectively.Conclusion The keys to successful surgery for traumatic eyelid defect are careful debridement,flexible operation skills and meticulous suture of the fragmentized tissues.Additionally,flap is always the first choice to ensure the best contour and optimal function.The special patients who couldn' t endure emergent surgery need reasonable treatment and preparation for secondary repair. Key words: Eyelid defect, traumatic ; Reconstruction

Management of lumbar artery injury related to pedicle screw insertion.

We report on 2 patients who experienced injury to one of their lumbar arteries related to pedicle screw misplacement. In this report, the lumbar pedicle screw holes were made laterally with resultant injury to the lumbar artery. During surgery, arterial bleeding was controlled with pressure and gauze; however, the patients experienced vital shock after surgery. Vital shock ensued and they were rescued by catheter embolization. If patients receiving lumbar instrumentation surgery experience severe anemia or vital shock postoperatively, the surgeon should assume lumbar artery injury as a differential diagnosis.

Effect of silver ion dressing and gel foam dressing on the healing of surface abscess after incision drainage

Objective To study the effect of Silver ion dressing and gel foam dressing on the healing of Surface abscess after incision drainage.Methods Totals of 80 cases with body abscess after incision drainage were randomly divided into the observation group and the control group,with 40 cases each group.In observation group,used ions silver dressing to fill the wound,and fixed by gel foam dressing.While in control group,used iodoform gauze for residual cavity wound drainage,and fixed by topical sterile gauze.The two groups were dressing one time after 2-3 days.After the treatment,residual cavity volume,frequency of dressing changes and residual cavity healing time were observed and compared.Results No significant difference was found in the residual cavity volume before the intervention (P ＞ 0.05).Three days after the intervention,no significant difference was found in residual cavity volume between observation group and control group [(3.26 ± 1.17) ml vs (3.48 ± 1.16) ml ; P ＞ 0.05)],while significant difference was in the 7th day and 14th day after the intervention [(1.89 ± 0.92) ml vs (2.73 ± 1.02) ml,(0.61 ± 0.52) ml vs (1.43 ± 0.66) ml;t =3.86,6.17,respectively; P ＜ 0.01)].And the frequency of dressing changes and residual cavity healing time in observation group respectively were (7.87 ± 1.18) times and (18.31 ± 2.67) days,and that in control group were (11.04 ± 1.45) times and (21.24 ± 3.24) days,and the difference was statistically significant (t =4.41,5.62,respectively; P ＜ 0.01).Conclusions Ions silver dressing and gel foam dressing in treating residual cavity on body surface after abscess is a new method to prompt the healing of residual cavity,which can reduce the frequency of dressing change and clinic nursing workload. Key words: Surface abscess; Ions silver dressing; Gel foam dressing; Incision drainage; Wound healing

The effect of microwave combined with magnesium sulfate in treatment of PICC catheter to mechanical phle-bitis

Objective To observe the effect of microwave combined with magnesium sulfate in treatment of peripherally inserted central catheter （PICC） catheter to mechanical phlebitis. Methods 75 patients with mechanical phlebitis were randomly divided into two groups, the observation group （40 cases ） was given microwave treatment ＋ 50% magnesium sulfate after heated and gauzed to soak in the inflammatory area 1 -2d,50% magnesium sulfate gauze is soaked, heating tile on inflammation in the area,2 - 3times/d,30min/time, continuous use 2 -3d. Results The observation group cure 37 cases （92.5%） ,2 cases were markedly improved （5.0%） ,effective 1 case （2.5%） ,invalid 0 case （0.0%） ,control group were 18 cases （51.4%） ,4 cases （11.4%） ,8 cases （22.8%） ,5 cases （ 14.3% ）, respectively. The difference of cure rate between two groups was statistically significant （X^2 = 17. 224,P 〈0. 05 ）. Conclusion The effect of microwave combined with magnesium sulfate in treatment mechanical phlebitis is remarkable. Key words: Phlebitis; catheterization, central venous ; Microwave ; Magnesium sulfate

Pathologic change after intranasal endoscopic dacryocystorhinostomy with hyaluronate stuffing on rabbits

Objective To investigate the pathological changes in the post-operative lacrimal sac mucosa by intranasal endoscopic dacryocystorhinostomy with hyaluronate (HYAFF,MeroGel) stuffing.Methods 24 rabbits received nasal endoscopic dacryocystorhinostomy were randomly divided into 3 groups.The hyaluronate,gelatin sponge and Vaseline gauze were used respectively for stuffing anastomosis.And two rabbits were normal control.The clinical signs and lacrimal sac mucosa pathological changes were observed in each group by double-blind.Results 3-5 days after operation,clinical reaction and pathological inflammatory reaction were mild in hyaluronate group; In this group,we observed that the hyaluronate dissolved and the anastomotic was covered by epithelia 7 days after operation.The dissolved hyaluronate was absorbed partly 10 days after operation.Conclusion The hyaluronate can reduce the lacrimal sac mucosal inflammation after nasal endoscopic dacryocystorhinostomy,promote incision healing,and dissolve itself gradually. Key words: Nasal endoscopy; Dacryocystorhinostomy; Hyaluronate; Rabbit

The efficacy of artificial dermis in the repair of chronic wounds

Objective To explore therapies for chronic wounds.Methods The therapies for chronic wounds in 62 patients who had been hospitalized during 2008 to 2011 were retrospectively analyzed.The patients were randomly divided into control group ( 32 patients ) and study group ( 30 patients ).The control group received anti-infection,microcirculation improvement and their wounds were covered by gauze soaked with povidone iodine cream with regular dressing change; the study group received anti-infection,microcirculation improvement and early debridement and their wounds were covered by artificial dermis ( PELNAC ) to induce dermal reconstruction after infection control and to promote granulation tissue regeneration and/or scar formation a nd wound healing.Some bigger wounds were treated by skin grafting after satisfied growth of granulation tissues.Results In the control group,the average length of hospital stay was ( 58.2 ± 1.3 )days; 18 patients were treated by skin grafting or skin flap transplantation for wound healing and the wounds in 14 patients were healed by wound dressing with remarkable scar formation.In the study group,the average length of hospital stay was ( 31.4 ± 1.1 )days; the wounds in the patients were covered with artificial dermis with little scar formation,7 of whom with bigger wounds were treated by skin grafting after wound bed preparation ( granulation tissue growth ) by artificial dermis.Conclusions Artificial dermis could accelerate the healing speed of chronic wounds.Wound repair with artificial dermis could shorten length of hospital stay and decrease surgical duration and risks.It is worth popularizing. Key words: Artificial dermis (PELNAC); Repair; Chronic wounds

The application effects of Biatain foam dressings as changing the incision dressings after tracheotomy

Objective To study the application effects of Biatain foam dressings as changing the incision dressings after tracheotomy.Methods A total of 90 patients were divided into two groups randomly,and in the experimental group 45 cases were changed with Biarain foam dressings as the incision dressings after tracheotomy,then the rest of ones with the sterile gauze pads in the control group.The skin conditions of the two groups were observed and recorded at different times.Results The incidence rate of skin adverse reactions ( including infiltrating,congestion and rash) in the experimental group was significantly lower than that of control group ( P ＜ 0.05 ).The sterile gauzepads should be changed dressings everyday,but Biatain foam dressings every third/fourth day.Conclusions Changing dressings with Biatain foam dressings can not only reduce the incidence rate of skin adverse reaction and the times of changing dressing in the nursing,but also improve the patients' comfort. Key words: Foam dressing; Incision; Change dressing; Tracheotomy; Skin nursing