改良可灌洗式持续负压引流技术治疗难愈性创面的临床疗效观察

目的探讨改良可灌洗式持续负压引流技术治疗复杂难愈性创面的临床效果。方法11例难愈性创面．应用改良可灌洗式持续负压引流技术进行治疗,观察负压引流持续时间、更换次数、愈合方式以及应用游离皮片移植及皮瓣转移的愈合情况。结果单例患者敷料套件更换次数最少2次,最多6次,首次治疗后,创面肉芽组织不同程度增生10例;继续应用改良技术固定游离皮片移植愈合10例,皮瓣转移修复1例,11例难愈性创面全部愈合。结论改良可灌洗式持续负压引流技术可以有效地改善创面条件,确保皮片及皮移植瓣成功率,效果良好,值得推广。     

封闭负压吸引技术对慢性难愈创面的治疗及护理

目的:评价封闭负压吸引技术(VSD)用于各类慢性难愈创面的效果。方法:入选IV度压疮、III度烧伤创面、糖尿病足溃疡和周围血管病变引起的溃烂共计50例60处,分为传统组和治疗组,传统组行常规清创、换药、包扎、抗感染支持对症治疗;治疗组清创后采用自制的简易负压吸引装置治疗,在每次更换负压装置时进行清创,并给予抗感染支持对症治疗。观察VSD治疗组和传统组住院时间,换药次数,创面愈合时间,创面愈合费用,分析差异有无统计学意义。结果:经过治疗后创面清洁,面积较前缩小,肉芽生长新鲜,减少换药次数,减少住院时间,降低了住院费用。结论:负压吸引技术对不同慢性难愈创面均有效。     

封闭负压吸引及护理干预对慢性难愈性创面的影响

目的:探讨封闭负压吸引(VSD)技术及其相应的护理干预措施对慢性难愈性创面的影响。方法:60例慢性难愈性创面患者随机分为实验组和对照组,各30例,实验组使用VSD技术进行治疗并给予相应的护理干预,对照组常规换药治疗及护理措施;比较两组患者治疗前(T1)、治疗后3天(T2),治疗后7天(T3)的心理焦虑情况,更换床单次数、换药次数,创面愈合率等指标。结果:实验组治疗后7天患者的心理状态、创面愈合率、感染控制、住院时间及费用等方面均优于对照组,差异均有统计学意义(P0.05)。结论:封闭负压吸引技术在慢性难愈性创面治疗过程中,可以减轻患者的痛苦及焦虑状况,缩短病程,减轻经济负担,减少医务人员工作量。     

速愈乐创面敷料在骨科难愈性创面愈合中的应用

目的:分析速愈乐创面敷料在促进骨科难愈性创面愈合中的应用效果。方法:选择2021年3月-2022年3月笔者医院骨科收治的慢性难愈性创面患者79例作为观察对象,按随机数字表法分为试验组(n=40例,给予速愈乐创面敷料治疗)和对照组(n=39例,给予常规凡士林纱布外敷治疗)。比较两组治愈时间、换药次数、医疗费用、创面面积缩小率和愈合率、疼痛情况以及两组治疗效果,采用创面愈合评分表(Pressure ulcer scale for healing,PUSH)比较两组愈合效果。结果:试验组治愈时间短于对照组、换药次数少于对照组、医疗费用低于对照组,差异均有统计学意义(P<0.05);试验组创面面积缩小率和相对愈合速率均高于对照组(P<0.05),治疗后两组疼痛视觉模拟评分(Visual analogue scale,VAS)均低于治疗前,且试验组VAS评分低于对照组(P<0.05);试验组创面治疗有效率为95.00%,高于对照组的79.49%(P<0.05);治疗后两组PUSH评分均低于治疗前,且试验组治疗后不同时间点PUSH评分均低于对照组,存在组间、时间和交互意义(...     

NPWT联合美皮贴于游离皮片移植中的应用

目的:将负压创面治疗技术(negative pressure wound therapy,NPWT)联合美皮贴治疗与传统打包治疗方法进行对比,探讨不同方式对于游离移植皮片成活率、并发症发生率的影响,总住院时间及揭除辅料时疼痛程度等指标,评价其优缺点及临床实用性。方法:将60例住院患者(多种原因致皮肤缺损需行游离皮片移植术者)随机分为NPWT联合美皮贴组(A组)与传统打包组(B组)。A组:30例,行游离皮片移植后采用NPWT联合美皮贴行创面封闭、负压创面治疗;B组:30例,采用传统打包加压包扎固定移植皮片。手术治疗后由同一观察者对移植皮片成活情况及疼痛程度进行评估。结果:A组移植皮片成活不良1例,并发症发生率3.3%,B组发生皮肤坏死4例,并发症发生率13.3%,两组患者并发症发生率比较,差异有显著性意义(χ2=11.8916,P0.01),A组平均住院时间为(10.2±1.23)天,B组为(15.4±1.96)天,两组患者平均住院时间比较,差异有显著性意义(t=6.6589,P0.01)。A组I~II度以上疼痛患者2例,B组I~II度以上疼痛患者8例,两组患者疼痛程度比较有显著性差异(χ2=17.7778,P0.01)。结论:NPWT联合美皮贴治疗较传统打包操作简便,容易推广,可较明显地减轻患者病痛,降低并发症的发生率,降低移植皮片因黏附于敷料而在去除时造成破损的几率,缩短住院时间,具有更优的临床应用价值。     

简易持续负压吸引在深度创面的应用观察及护理

目的：探讨简易持续负压吸引对促进深度创面愈合的疗效及护理。方法：50例患者分为治疗组25例和对照组25例,对照组给予常规换药,治疗组用简易材料进行持续负压吸引,比较两组的换药次数、应用抗生素费用及总住院时间等指标,评估疗效。结果：在换药次数、应用抗生素费用及总住院时间等,治疗组均优于对照组。结论：简易负压吸引是一种良好的促进深度创面愈合的方法,配合创面观察及护理,疗效优于传统方法,值得推广。     

简易负压封闭引流治疗下肢严重感染性创面的效果观察

目的：探讨自制负压封闭引流装置治疗下肢严重感染性创面的效果.方法：对35例下肢严重感染并有软组织缺损的患者采用自制的封闭式负压吸引装置（由无菌高分子泡沫海绵、手术用无菌贴膜、医用硅胶管、墙壁式负压引流装置组成）治疗,压力-75～-100 mmHg,每48～72 h更换负压装置,并在每次更换负压装置时进行清创.根据创面清洁度及新鲜肉芽生长情况择期行二期游离植皮或皮瓣转移修复术.结果：35例患者经过负压封闭引流10～63 d（平均18 d）治疗后创面清洁,面积较前缩小,肉芽生长新鲜,游离皮片移植或皮瓣转移修复创面均一次性获得成功;且耗材费用（20～50元/次）较进口成套负压封闭引流装置（1000～3000元/次）低廉.结论：自制封闭式负压引流装置结合间断清创能够有效地控制创面感染,促进坏死物脱落,加速愈合,为组织移植、创面修复创造条件;且费用低廉,易于推广.     

游离植皮联合负压创面治疗技术治疗Ⅲ/Ⅳ度烧伤创面效果分析

目的:探讨清创植皮联合负压创面治疗技术(Negative pressure wound therapy,NPWT)治疗Ⅲ/Ⅳ度烧伤创面的临床效果。方法:选取2015年2月-2017年3月笔者医院烧伤科收治的Ⅲ/Ⅳ度烧伤患者78例为研究对象,根据患者治疗方案分为干预组(清创后NPWT联合游离植皮修复,42例)和对照组(清创后传统换药联合游离植皮修复,36例),比较两组患者创面愈合时间、住院时间、治疗费用及创面封闭成功率、术后并发症发生率。结果:干预组创面愈合时间、住院时间、1%烧伤面积治疗费用均低于对照组,差异有统计学意义(P0.05)。干预组一次性手术创面封闭成功率为80.95%高于对照组的58.33%,干预组创面感染率、肺部感染率(2.38%、0.00%)均低于对照组(16.67%、11.11%),差异有统计学意义(P0.05)。干预组瘢痕增生程度明显低于对照组,差异有统计学意义(P0.05)。结论:NPWT联合清创植皮治疗Ⅲ/Ⅳ度烧伤创面可缩短治疗时间、提高治疗效果,减轻术后瘢痕增生程度,具有显著治疗价值。     

VSD负压吸引技术对难愈性创面的治疗

总结了60例采用负压密闭引流(VSD)技术[1]对难愈性创面的治疗.对创面进行彻底清创后,采用VSD负压材料进行持续恒定的负压吸引,改善局部血运,促进肉芽生长,再配以游离植皮、皮瓣转移等方法促进伤口愈合缩短住院时间.     

负压封闭引流技术结合植皮术治疗足踝部慢性溃疡体会

目的:探讨足踝部难愈性创面应用负压封闭引流( Vacuum sealing draining VSD)技术结合植皮手术治疗的临床疗效.方法:对18例足踝部溃疡创面有效清创,使用VSD技术后待创面有新鲜肉芽组织,再行刃厚皮或中厚皮移植并再次使用VSD技术治疗.结果:18例患者足踝部难愈性创面移植皮片全部存活.讨论:该方法操作简单,术后护理方便,是部分足踝部难愈性创面一种较理想的治疗方法.     

两种负压创面治疗技术临床疗效比较

Objective To compare the differences of the clinical effects, side effects and treatment-related cost between two kinds of negative-pressure wound therapy (NPWT). Methods Forty-four inpa-tients with acute, subacute, and chronic wounds were divided into simplified NPWT group ( A group) and conventional NPWT group ( B group) according to the random number table. Wounds of patients in A group were treated with gauze + continuous suction with hospital central negative pressure ( -10.64 kPa) for 24 hs; wounds of patients in B group were treated with sponge + interrupted suction with a purpose-designed suction appliance ( -16.63 kPa) for 24 hs. Gross wound condition, treatment time, survival rates of skin graft and flap, changes of bacterial species on wound, treatment cost, and ratio of side effects between two groups were compared. Results There was no significant difference between A and B groups in respect of gross wound condition, treatment time [ A group (29 ± 12) d, B group (26 ± 13) d, P > 0. 05 ], changes of bacterial species, survival rates of skin graft [ A group (98 ± 4 ) % , B group ( 98 ± 4 ) % , P > 0. 05 ] and flap (A group 98% , B group 100% , P >0.05). Treatment cost of A group $ (374 ± 134) was obviously lower than that of B group $ (9825 ± 4956) ( P <0. 01 ), while more side effects were observed in A group (33.3%) than that in B group (5.0%) ( P < 0.05 ). Conclusions Both simplified NPWT and NPWT with purpose-designed appliance ean effectively improve wound healing. The simplified method may cause many side effects and has a potential risk of inciting nosocomial infection, but it can be conveniently employed with a low cost. In contrast, the cost of using purpose-designed appliance should be cut down to meet the aim of generalization.     

Novel negative pressure wound therapy device without foam or gauze is effective at −50 mmHg

Negative pressure wound therapy (NPWT) promotes healing in acute or chronic wounds. Conventional NPWT devices consist of a filler (such as foam or gauze) that covers the wound and of a permeable membrane and tubing that connects the space under the membrane to a suction pump. The permeable membrane increases airflow and thus increases the required pump capacity that can cause patient discomfort or even ischemia in wounds with compromised vascularity. In addition, foam or gauze may fragment and become colonized with bacteria over time. To mitigate these, negative aspects, we have developed a new impermeable single layer component membrane dressing to deliver NPWT that does not need a foam or gauze to function. Therefore, the purpose of this study was to introduce this novel NPWT system (platform wound device, PWD) and evaluate its usability and effectiveness in the treatment of porcine full‐thickness burns. A total of 48 burn wounds were created across four Yorkshire pigs on the dorsum. Wounds were created on day 0 and continuous NPWT with ?50 mmHg and ? 80 mmHg was initiated immediately. Subsequently, the burns were debrided on day 3 and animals were euthanized on day 7. The efficacy of the PWD on wound healing and reduction of bacterial burden was measured and compared to wounds that did not receive NPWT. The results showed that PWD promoted wound healing by outperforming the wounds that did not receive NPWT and that PWD was efficient at reducing bacteria from the burn eschar and from the wound bed. In conclusion, this study demonstrated that PWD promoted wound healing with a negative pressure as low as ?50 mmHg, which likely benefits healing and avoids potential safety issues.     

Negative pressure wound therapy using gauze and foam: histological, immunohistochemical and ultrasonography morphological analysis of the granulation tissue and scar tissue. Preliminary report of a clinical study

Negative pressure wound therapy (NPWT) is becoming routine for the preparation of wounds prior to grafting for wound closure. We have been using both foam- and gauze-based NPWT to prepare wounds for closure prior to skin grafting and have obtained similar proportions of closed wounds; 7/7 for wounds treated with gauze-based NPWT and 11/11 for wounds treated with foam-based NPWT. In our follow-up consultations we observed that skin grafts on the foam-treated patients were less pliable than those on the gauze-treated patients. To assess what the mechanism of this effect might be, we compared the specific details of the treatments of both 11 foam and 7 gauze patients, including depth, location, patients' age and co-morbidity; biopsies of granulation and scar tissue were taken and stained with haematoxylin-eosin and by Masson's trichrome staining and conducted ultrasound analysis of the closed wounds, to see if there were features which explained those effects. All foam patients were treated at -125 mm Hg for an average of 25·9 days before skin grafts were applied. All gauze patients were treated at -80 mm Hg for an average of 24·7 days before skin grafts were applied. Biopsies of granulation tissue prior to skin grafting from five foam and four gauze-based NPWT patients did not reveal any obvious histological differences between the treatments. Ultrasound analysis of the skin-grafted wounds showed an average depth of scar tissue of 18 mm in the wound beds of the foam-treated wounds and 7 mm in the gauze-treated ones. Biopsies taken on the scar tissue after treatment with the gauze showed a minor tissue thickness and disorganisation and less sclerotic components. The findings of this preliminary analysis suggest that foam-based NPWT may induce a thicker layer of scar tissue beneath skin grafts than gauze-based NPWT which might explain a reduced pliability of the reconstructed bed. At present it is unclear which mechanism might be responsible for the difference in pressure (-125 versus -80 mm Hg), either the length of the time taken to reconstruct the wound bed or the intrinsic nature of the foam or gauze on the tissue surface. Prospective studies are necessary to investigate whether these preliminary observations are confirmed and to investigate what the mechanism might be.     

清创术-负压治疗-组织移植模式治疗复杂难愈性创面临床观察

目的 观察清创术-负压治疗-组织移植模式对复杂、难愈性创面的临床疗效. 方法 选择2008年5月-2010年6月笔者单位收治的20例患者(共计20处复杂、难愈性创面),清创后按照交替法随机分为治疗组(负压治疗,- 19～-8 kPa)与对照组(凡士林纱布+生理盐水纱布+干纱布覆盖),每组10例.治疗4、7、14d切取4 mm×3 mm×2 mm创面肉芽组织进行HE染色,观察肉芽组织生长情况,包括毛细血管、炎性细胞数量及胺原纤维的排列;采用兔抗人凝血因子Ⅷ相关抗原多克隆抗体、鼠抗人Ki-67单克隆抗体进行免疫组织化学染色,计数血管内皮细胞和增殖期细胞.对数据进行t检验.在此基础上采用清创术-负压治疗(同前)-适时植皮(皮瓣)修复模式,治疗笔者单位同一时期收治的59例患者共计62处复杂、难愈性创面,观察疗效. 结果 (1)与对照组比较,治疗组治疗7d时毛细血管数量明显增多、炎性细胞少;治疗14 d,治疗组腔原排列较对照组规则.治疗组治疗4、7、14 d时血管内皮细胞计数分别为每400倍视野(108.7±11.2)、(138.0±14.7)、(68.7±6.9)个,明显高于对照组[(31.0±3.6)、(34.6±4.5)、(55.1±6.5)个,t值为4.62～30.28,P值均等于0.01].治疗组治疗4、7 d增殖期细胞计数分别为每400倍视野(88.9±5.9)、(128.1±13.0)个,明显高于对照组[(16.6±3.3)、(11.01±8.9)个,t值分别为19.89、3.33.P值均小于0.05],治疗组治疗14 d增殖期细胞计数为每400倍视野(26.7±5.1)个,明显低于对照组[(59.7±4.5)个,t=12 43,P =0.01].(2)经过上述模式治疗,62处复杂、难愈性创面坏死组织被彻底清除,肉芽组织生长快,皮片或皮瓣成活率高,创面修复教果好.结论 负压治疗能加速清创后组织血管内皮细胞生成,刺激细胞增殖.清创术-负压治疗-适时植皮(皮瓣)修复的模式能有效提高复杂、难愈性创面的愈合率.     

多发性压力性溃疡的外科治疗

目的 总结多发性压力性溃疡的治疗经验. 方法 2001年1月-2007年5月,笔者应用多种皮瓣转移联合皮肤移植治疗21例患者的56处压力性溃疡创面,其中骶尾部21处、坐骨结节14处、股骨大转子部13处、其他部位8处.围手术期行全身支持治疗,尽早清创,依据扩创后创面大小、深度、部位及邻近皮肤软组织条件,选用皮瓣、肌皮瓣或游离植皮修复创面.术后对伤口行连续灌洗与负压吸引,卧翻身床定期翻身. 结果 25处创面以筋膜皮瓣或肌皮瓣修复,愈合率为92%;13处创面以邻近局部皮瓣修复,愈合率为85%;8处创面直接缝合,其中6处一次性愈合;10处创面游离植皮,其中7处一次性愈合.在延期愈合的创面中,4处经再次清创缝合或植皮愈合,4处经短期换药愈合,1例遗留慢性窦道.随访6个月时,3例患者复发压力性溃疡. 结论加强围手术期全身支持治疗,合理、有效地利用臀部及其周围健康组织形成多个筋膜皮瓣或肌皮瓣同时修复多个创面,术后对伤口行连续灌洗与负压吸引,采用翻身床定期翻身等等,是多发性压力性溃疡手术成功的有效措施.     

Effective use of negative pressure wound therapy provides quick wound-bed preparation and complete graft take in the management of chronic venous ulcers

Venous ulcers are characterised by longstanding and recurrent loss of skin integrity. Once occurred, healing is slow and recurrence is high because of inappropriate conditions of the wound bed. This study involves 20 patients with chronic venous ulcers at least 6 weeks of duration treated with negative pressure wound therapy (NPWT). Patients underwent a radical debridement of all devitalised tissues in the first operation. After adequate haemostasis, silver-impregnated polyurethane foam was applied. Once the wounds were determined to be clean and adequate granulation tissue formation was achieved, split-thickness skin grafts were applied. Black polyurethane foam was applied over them. All wounds completely healed without the need for further debridement or regrafting. The mean number of silver-impregnated foam dressing changes prior to grafting was 2·9 (one to eight changes). The mean number of NPWT foam changes was 2·6 after skin grafting (two to five changes). Two patients who did not use conservative treatments for chronic venous insufficiency (CVI) after discharge from the hospital had recurrence of venous ulcers in the follow-up period. Application of NPWT provides quick wound-bed preparation and complete graft take in venous ulcer treatment.     

Effects of negative pressure wound therapy on fibroblast viability, chemotactic signaling, and proliferation in a provisional wound (fibrin) matrix

Vacuum Assisted Closure brand Negative Pressure Wound Therapy (V.A.C. NPWT) has been shown to be an effective therapeutic option for the treatment of recalcitrant wounds; however, the mechanism of action at the cellular level remains to be elucidated. Here, we examined the effects of negative pressure wound therapy, manifolded with two different dressings, on fibroblast viability, chemotactic signaling, and proliferation in a fibrin clot matrix. Fibroblasts were grown in a three-dimensional fibrin matrix and were treated for 48 hours with either V.A.C. NPWT and GranuFoam Dressing, or with gauze under suction, or as static controls without negative pressure or dressings. Cells treated by gauze under suction showed significantly greater cell death and stimulated less migration and proliferation than static and V.A.C. NPWT-treated cells (p<0.05). Apoptosis was also significantly higher in gauze under suction than in static treatments. These results indicate that the dressing material has a significant effect on cell response following negative pressure wound therapy. The ability to support cell growth, stimulate chemotaxis, and proliferation without increasing apoptosis may provide an insight into the mechanisms of action of V.A.C. NPWT.     

Clinical evaluation of gauze‐based negative pressure wound therapy in challenging wounds

The aim of this randomised clinical study was to evaluate the effectiveness and safety of gauze‐based negative pressure wound therapy (NPWT) in patients with challenging wounds. A total of 50 consecutive patients who had wound drainage for more than 5 days, required open wound management and had existence of culture positive infection were included the study. In this study, gauze‐based NPWT was compared with conventional dressing therapy in the treatment of patients with difficult‐to‐heal wounds. The patients were randomly divided into two groups. Group I (n = 25) was followed by conventional antiseptic (polyhexanide solution) dressings, and group II (n = 25) was treated with saline‐soaked antibacterial gauze‐based NPWT. The wounds' sizes, number of debridement, bacteriology and recurrence were compared between group I and group II. The mean age of the patients was 59·50 years (range 23–97). In group I, average wound sizes of pre‐ and post‐treatment periods were 50·60 ± 55·35 and 42·50 ± 47·92 cm², respectively (P < 0·001). Average duration of treatment was 25·52 ± 16·99 days, and average wound size reduction following the treatment was 19·99% in this group. In group II, the wounds displayed considerable shrinkage, accelerated granulation tissue formation, decreased and cleared away exudate. The average wound sizes in the pre‐ and post‐treatment periods were 98·44 ± 100·88 and 72·08 ± 75·78 cm², respectively (P < 0·001). Average duration of treatment was 11·96 ± 2·48 days, and average wound size reduction following the treatment was 32·34%. The patients treated with antibacterial gauze‐based NPWT had a significantly reduced recurrence (2 wounds versus 14 wounds, P = 0·001), and increased number of the culture‐negative cases (22 wounds versus 16 wounds, P < 0·047) in a follow‐up period of 12 months. There was a statistically significant difference between two groups in all measurements. As a result, we can say that the gauze‐based NPWT is a safe and effective method in the treatment of challenging infective wounds when compared with conventional wound management.     

Clinical evaluation of improvised gauze‐based negative pressure wound therapy in military wounds

The use of negative pressure wound therapy (NPWT) in civilian and military wounds is found effective in promoting granulation tissue, decreasing exudate and improving patient comfort. The Use of gauze‐based NPWT is increasing in civilian trauma cases with availability of proprietary systems using gauze as filler material rather than the traditionally used reticulated open‐cell foam. Military trauma wounds differ from civilian trauma wounds in energy of impact, degree and nature of contamination as well as the hostile environments. The Use of gauze as filler material for NPWT in military trauma wounds is less well studied. This study is a retrospective analysis of use of improvised gauze‐based NPWT in military trauma wounds. The whole assembly was constructed from commonly available operation theatre supplies and no proprietary system was used. Results were very encouraging and the use of this improvised method can be useful and cheap alternative to costly proprietary systems.     

Patient's pain feedback using negative pressure wound therapy with foam and gauze

Wounds can be caused by different mechanisms and have a significant morbidity and mortality. Negative pressure wound therapy (NPWT) is one of the most successful treatment modalities for wound healing. We have been using both foam and gauze-based NPWT. During application of NPWT, we noticed that the patient's pain was of varying intensity depending on the filler used. The aim of our work was to compare the level of pain and feedback before, during the treatment and at the dressing change after treatment with NPWT with two different fillers. For this study, we compared a pool of 13 gauze-treated patients with a pool of 18 foam-treated patients regarding the level of pain and feedback before, during the treatment and at the dressing change after treatment with NPWT. They were all post-traumatic patients with loss of tissue up to the muscular band. The patients were asked to respond to a questionnaire interviewed by the same physician to assess the level of pain using VNS (verbal numerical scale). We observed similar difference of means before and during the treatment with NPWT with gauze and foam. Regarding the pain at the dressing change, the mean of the scores for the foam was 6·5 while for the gauze was 4·15. In this case, we noticed the most significant difference between means from the scores given: 2·35 which was a statistically significant difference between the two groups (P = 0·046). The finding of this study confirms less pain at the dressing change after treatment with gauze-based NPWT. In our opinion, this finding is related to the more adhesive property of the foam probably because of the ingrowth of the granulation tissue in the micropores present on the foam. Considering this statement, we recommend the foam for neuropathic and paraplegic patients and the gauze for patients with bone and tendon exposition wounds, patients that do not tolerate NPWT with foam and low compliant patient particularly paediatric and old-age patients. We remind that the performance of this study was not sponsored by any company.