Perianal disease in inflammatory bowel disease:Broadening treatment and surveillance strategies for anal cancer

The perianal disease affects up to one-third of individuals with Crohn's disease(CD),causing disabling symptoms and significant impairment in quality of life,particularly for those with perianal fistulising CD(PFCD).The collaborative effort between gastroenterologists and surgeons is essential for addressing PFCD to achieve fistula closure and promote luminal healing.Limited fistula healing rates with conventional therapies have prompted the emergence of new biological agents,endoscopic procedures and surgical techniques that show promising results.Among these,mesenchymal stem cells injection is a particularly hopeful therapy.In addition to the burden of fistulas,individuals with perianal CD may face an increased risk of developing anal cancer.This underscores the importance of surveillance programmes and timely interventions to prevent late diagnoses and poor outcomes.Currently,there is no established formal anal screening programme.In this review,we provide an overview of the current state of the art in managing PFCD,including novel medical,endoscopic and surgical approaches.The discussion also focuses on the relevance of establishing an anal cancer screening programme in CD,intending to propose a risk-based surveillance algorithm.The validation of this surveillance programme would be a significant step forward in improving patient care and outcomes.

Anal Pathologies: What Management at the Reference Health Center of Bamako’s Commune V?

Anal pathologies are conditions affecting the anal margin and the anal canal. The aim of our study was to update data on anal diseases. Non-specific, it can reveal an emergency, a serious illness, a chronic disease or a benign condition. It was a prospective, descriptive and analytical study from April 2022 to March 2023, carried out in the hepato-gastroenterology unit of the Centre de Santé de Référence de la commune V du District de Bamako in Mali. Out of seven hundred and forty-nine (749) patients seen in consultation, 98 had anal pathology, i.e. a prevalence of 13.08%. The mean age was 40 ± 15.15 years and the sex ratio was 1.5. Hemorrhoidal disease and anal fissure were the most frequent pathologies in 66.4% and 24.4% of cases respectively. Medical treatment was initiated in 91.9% of patients with hemorrhoidal disease and 91.7% with anal fissure. Anal pathologies are common in young male patients. In our context, they are dominated by benign conditions.

A comparative study of acupuncture combined with rehabilitation gymnastics on postoperative anal function of lower rectal cancer

BACKGROUND From the anal function,inflammatory response and other indicators,acupuncture combined with rehabilitation gymnastics was applied to patients with cancer undergoing low resection,aiming to improve the prognosis of patients.AIM To explore the effects of acupuncture combined with rehabilitation gymnastics on anal function after lower rectal cancer surgery.METHODS From January 2020 to December 2022,128 patients who underwent rectal cancer surgery in the Department of Oncology of Hebei Provincial Hospital of Traditional Chinese Medicine Hospital were selected and divided into two groups using the random number table method,with 64 patients in each group.Patients in the control group were not treated with acupuncture or rehabilitation gymnastics and served as blank controls.Patients in the study group were treated with acupuncture and rehabilitation gymnastics from the 7th postoperative day.The anal incontinence scores,changes in serum interleukin-4,interleukin-6,and interleukin-10 Levels,and serum motilin,5-hydroxytryptamine,and vasoactive intestinal peptide levels were compared.RESULTS There were no significant differences in serum interleukin-4,interleukin-6,and interleukin-10 Levels between the groups before treatment(P>0.05).After treatment,these levels were better than those of the control group(P<0.05).There was no significant difference in the anal incontinence scores between the groups before and 7 d after surgery(P>0.05).Anal incontinence scores in the study group were lower than those in the control group at 14 d,21 d,and 28 d postoperatively(P<0.05).There were no significant differences in serum motilin,5-hydroxytryptamine,or vasoactive intestinal peptide levels between the groups before treatment(P>0.05).After treatment,these levels were higher in the study group than in the control group,and vasoactive intestinal peptide level was lower in the study group than in the control group(P<0.05).CONCLUSION Acupuncture combined with rehabilitation gymnastics can promote the recovery of anal function and reduce the inflammatory response in patients with lower rectal cancer after surgery.

Structured magnetic resonance imaging and endoanal ultrasound anal fistulas reporting template(SMART):An interdisciplinary Delphi consensus

BACKGROUND There is still considerable heterogeneity regarding which features of cryptoglandular anal fistula on magnetic resonance imaging(MRI)and endoanal ultrasound(EAUS)are relevant to surgical decision-making.As a con-sequence,the quality and completeness of the report are highly dependent on the training and experience of the examiners.AIM To develop a structured MRI and EAUS template(SMART)reporting the minimum dataset of information for the treatment of anal fistulas.METHODS This modified Delphi survey based on the RAND-UCLA appropriateness for consensus-building was conducted between May and August 2023.One hundred and fifty-one articles selected from a systematic review of the lite-rature formed the database to generate the evidence-based statements for the Delphi study.Fourteen questions were anonymously voted by an interdisciplinary multidisciplinary group for a maximum of three iterative rounds.The degree of agreement was scored on a numeric 0–10 scale.Group consensus was defined as a score≥8 for≥80%of the panelists.RESULTS Eleven scientific societies(3 radiological and 8 surgical)endorsed the study.After three rounds of voting,the experts(69 colorectal surgeons,23 radiologists,2 anatomists,and 1 gastroenterologist)achieved consensus for 12 of 14 statements(85.7%).Based on the results of the Delphi process,the six following features of anal fistulas were included in the SMART:Primary tract,secondary extension,internal opening,presence of collection,coexisting le-sions,and sphincters morphology.CONCLUSION A structured template,SMART,was developed to standardize imaging reporting of fistula-in-ano in a simple,systematic,time-efficient way,providing the minimum dataset of information and visual diagram useful to refer-ring physicians.

Anal pruritus:Don’t look away

Anal pruritus is a common anorectal symptom that can significantly impair a patient’s quality of life,including their mental health.It can be one of the most difficult proctological conditions to treat.Patients often delay seeking medical attention,since it is an embarrassing but non-life-threatening situation.Pruritus ani can be associated with idiopathic and secondary causes,such as anorectal diseases,cancer(anal or colorectal),dermatological and sexually transmitted diseases,fungal infections and systemic diseases.If patients are referred for a colonoscopy,this can sometimes provide the first opportunity to evaluate the perianal area.Classifications of anal pruritus are based on the abnormalities of the perianal skin,one of the most commonly used being the Washington classi-fication.A proper digital anorectal examination is important,as well as an anoscopy to help to exclude anorectal diseases or suspicious masses.Endoscopists should be aware of the common etiologies,and classification of the perianal area abnormalities should be provided in the colonoscopy report.Information on treatment possibilities and follow-up can also be provided.The treatment normally consists of a triple approach:proper hygiene,elimination of irritants,and skin care and protection.Several topical therapies have been described as possible treatments,including steroids,capsaicin,tacrolimus and methylene blue intradermal injections.

Evaluating the clinical application and effect of acupuncture therapy in anal function rehabilitation after low-tension rectal cancer surgery

BACKGROUND According to the indexes of serum and anal function,acupuncture therapy was applied to patients with low rectal cancer in order to avoid the occurrence of anal incontinence and reduce complications.AIM To explore the clinical application and evaluate the effect of acupuncture therapy for anal function rehabilitation after low-tension rectal cancer surgery.METHODS From the anorectal surgery cases,we selected 120 patients who underwent colorectal cancer surgery between January 2020 and December 2022 and randomly divided them into a control group(n=60),observation group(n=60),and control group after surgery for lifestyle intervention(including smoking cessation and exercise),dietary factor adjustment,anal movement,and oral loperamide treatment.The serum levels of motilin,5-hydroxytryptamine,and vasoactive intestinal peptide(VIP),Wexner score for anal incontinence,and incidence of complications were compared between groups.RESULTS After treatment,the VIP and 5-hydroxytryptamine levels in the observation group were lower than those in the control group(P<0.05).The motilin level was higher than that in the control group(P<0.05).Postoperative anal incontinence was better in the observation group than in the control group(P<0.05).The incidence of complications in the observation group was 6.67%,which was significantly lower than that in the control group(21.67%;P<0.05).CONCLUSION Acupuncture therapy has a positive effect on the rehabilitation of anal function after low-tension rectal cancer surgery;it can effectively help to improve the serum indices of patients,avoid the occurrence of anal incontinence,and reduce the incidence of complications.Popularizing and applying it will be valuable.

Anal carcinoma-exploring the epidemiology,risk factors,pathophysiology,diagnosis,and treatment

Anal carcinoma is a relatively rare tumor that accounts for approximately 2%of gastrointestinal malignancies and less than 7%of anorectal cancers.Most anal tumors originate between the anorectal junction and the anal verge.Risk factors for the disease include human papillomavirus infection,human immunodeficiency virus,tobacco use,immunosuppression,female sex,and older age.The pathogenesis of anal carcinoma is believed to be linked to human papillomavirusrelated inflammation,leading to dysplasia and progression to cancer.Squamous cell carcinoma is the most common type of anal tumor,with an annual incidence of approximately 1 to 2 per 100000 persons.Treatment regarding anal cancer has emerged over time.However,chemoradiation therapy remains the mainstay approach for early localized disease.Patients with metastatic disease are treated with systemic therapy,and salvage surgery is reserved for disease recurrence following chemoradiation.This article aims to provide background information on the epidemiology,risk factors,pathology,diagnosis,and current trends in the management of anal cancer.Future directions are briefly discussed.

Clinical Study on the Treatment of Low Anal Fistula in Infants and Young Children by Anal Gland Excision and Virtual Hanging Procedure

Objective:To compare the efficacy of anal adenectomy with virtual hanging wire and anal fistulotomy in the treatment of low anal fistula in infants and children.Methods:60 children with low anal fistula who were admitted to our hospital from October 2021 to March 2022 and met the inclusion criteria were randomly divided into two groups of 30 cases each;the treatment group was treated with anal adenectomy and virtual hanging wire surgery,and the control group was treated with anal fistula resection.The clinical efficacy after treatment was compared.Results:The total effective rate of both groups was 96.67%and the difference between the two groups was not statistically significant(P>0.05).The postoperative pain score of the treatment group was lower than that of the control group(P<0.05).The length of hospitalization and healing time of the treatment group was lower than that of the control group(P<0.05).The anal function of the patients in both groups was normal,and there was no adverse reaction.Conclusion:Anal gland excision and virtual hanging surgery for the treatment of low anal fistula in infants and children have the advantages of mild pain,reduced length of hospitalization,short healing time,and better patient experience as compared to anal fistula excision.

A case study illustrating the use of an integrated approach to treat secondary Anal Fistula Post I&D of Perianal Abscess

Background:Anal fistula is a long-term disease characterized by a tubular structure with one end opening in the anorectal canal and the other end opening on the surface of the perineum or perianal skin with chronic pus drainage.It is linked to Bhagandar in Ayurveda,and in Sushruta Samhita,Acharya has mentioned 5 forms of Bhagandar.The boil in the present case was Shukla,sthira i.e.hard and firm,with Picchila strava and Kandu resembling the features of Parisraavi bhagandar.Aim and objective:The current case was diagnosed as Parisravi bhagandar,which resembles trans-sphincteric or intersphincteric fistula in modern ano.In Ayurveda,the management of Parisraavi Bhagandar,Shastra,kshara,and Agnikarma is advised and the use of Ksharasutra,which contributes to complete cutting and healing of the track without reoccurrence,similarly Modern surgeon depends on surgery i.e radical excision of the track,ligation with Seton,and use of chemical irritants like urethane,silver nitrates,etc.A cutting seton(tight)gently slices the confined muscle to close the fistula with the least interruption to continence.This operation is especially advised when a one-stage fistulotomy poses a considerable risk of incontinence.Material and methods:The method performed here was Core Partial Fistulectomy followed by Ksharasutra application till complete healing of the wound.Discussion and conclusion:This case study provides the successful management of Parisraavi Bhagandara(high anal,trans-sphincteric fistula in ano)in 61-year-old male patient with an integrated surgical&Ayurvedic management approach.

Relationship between anal cancer recurrence and cigarette smoking

BACKGROUND The incidence of anal cancer has been increasing in the United States.Smoking is a well-established risk factor;however,the impact of smoking on disease recurrence and outcome has not been well studied.The aim of this study was to assess the association between anal cancer recurrence and cigarette smoking.AIM To investigate the relationship between cigarette smoking status and anal cancer treatment outcome.METHODS The cancer registry from a single,community hospital was screened for patients with anal cancer between 2010 and 2021.The following characteristics were gathered from the database:Age;sex;cigarette smoking history;American Joint Committee on Cancer Clinical Stage Group;response to therapy;recurrence;time to recurrence;mortality;time to death;and length of follow-up.Patients were divided into the following groups:Current smokers;former smokers;and never smokers.SPSSv25.0 software(IBM Corp.,Armonk,NY,United States)was used for statistical analysis.RESULTS A total of 95 patients from the database met the screening criteria.There were 37 never smokers,22 former smokers,and 36 current smokers.There was no difference between groups in regards to race or sex.There was no difference in the American Joint Committee on Cancer Clinical Stage Group between groups.The former smokers were significantly older when compared to never smokers and current smokers(66.5±13.17 vs 57.4±7.82 vs 63.7±13.80,P=0.011).Former smokers and current smokers had a higher recurrence rate compared to never smokers(30.8%and 20.8%compared to zero,P=0.009).There was not a significant difference in recurrence between former smokers and current smokers.There was no difference in the mortality,non-response rate,or time to death between the groups.CONCLUSION Our data contributes evidence that cigarette smoking status is associated with increased recurrence for patients with anal cancer.

Observation on Curative Effect of Self-made Wubeizi Decoction Combined with rhaFGF in Promoting Postoperative Wound Healing in Patients with Anal Fistula

[Objectives]To explore the curative effect of Self-made Wubeizi Decoction combined with recombinant human acidic fibroblast growth factor(rhaFGF)in promoting postoperative wound healing in patients with anal fistula.[Methods]A total of 82 patients with anal fistula who underwent anal fistula resection+use of setons in Luodian Hospital during January and March of 2020 were randomly divided into observation group and control group with 41 cases in each group.The control group was given rhaFGF external application regimen,and the observation group was treated with Self-made Wubeizi Decoction on the basis of the control group.After 3 weeks of treatment,the differences in curative effects of TCM syndromes were compared between the two groups.Besides,the changes in TCM symptom scores,inflammatory mediators[interleukin-12(IL-12),tumor necrosis factor-α(TNF-α),interferon-γ(IFN-γ)],anorectal functions[anal resting pressure(ARP),maximal systolic pressure(MSP)and maximum tolerated volume(MTV)of the anal canal],quality of life[GQOLI-74 scores]were compared.[Results]After 3 weeks of treatment,the total effective rate of the observation group was significantly higher than that of the control group(P<0.05);the levels of TCM symptom scores,IL-12,TNF-α,IFN-γ,ARP,MSP,and MTV in both groups were significantly lower than those before treatment,and these levels in the observation group was significantly lower than that in the control group at the same time(P<0.05).The GQOLI-74 scores of both groups were significantly higher than those before treatment,and the observation group was significantly higher than the control group(P<0.05).[Conclusions]The Self-made Wubeizi Decoction combined with rhaFGF therapy has a significant effect in promoting postoperative wound healing in patients with anal fistula.It can effectively inhibit the local inflammation of patients,facilitate the recovery of anorectal function and improve the quality of life,thus has high clinical application value.

Comparative analysis of Parikartika and Anal Fissure: unraveling diagnostic, therapeutic, and surgical dimensions

Background:Agnimandya,the underlying cause of anorectal disorders,of which Parikartika is the most well-known,is brought on by lifestyles characterized by sedentary behavior,elevated stress,poor nutrition,and sleep habits.The illness known as Parikartika,with signs and symptoms like fissure-in-ano in modern sources,is characterized by kartanvat Vedana(cutting pain)over the anal region.Acute fissure-in-ano is treated with analgesics,stool softeners,and soothing creams.Treatment options for hazy chronic fissures include anal dilatation,sphincterotomy,fissurectomy,and anal advancement flap.In addition to using laxatives and substances that promote wound healing(vranaropaka),the concepts of management of Parikartika in Ayurveda are more heavily weighted towards enhancing the nature,character,and consistency of stool and stabilizing the digestive functions Parikartika is mentioned in Ayurvedic texts as a complication of many Ayurvedic procedures,such as Vamana,Virechana,and Basti,as well as a complication of some disorders,such as Arsh,Atisar,and Grahani.Aim and objective:This article aims to comprehensively review the literature,diagnostic,and therapeutic aspects of Parikartika,with its correlation to Fissure in ano,and compare the clinical outcomes of the treatment modalities with supporting references,consolidating all pertinent information on the subject.Material&method:Collection from Samhita’s,commentaries,exploring medical websites,Ayurvedic journals related to the topic of Parikartika and fissure in ano,systematic record of the collected literature and a summary of each item.Organize the collected materials,reference and citation are the material and method followed here.Discussion&conclusion:This is an extensive literature review on Parikartika in Ayurveda,exploring its contemporary association with Fissure in Ano.The research offers insights that can inform the evaluation and treatment of this condition,considering both conservative and surgical approaches,thereby enhancing clinical management strategies.

Diagnostic performance of texture analysis in the differential diagnosis of perianal fistulising Crohn’s disease and glandular anal fistula

BACKGROUND Perianal fistulising Crohn's disease(PFCD)and glandular anal fistula have many similarities on conventional magnetic resonance imaging.However,many patients with PFCD show concomitant active proctitis,but only few patients with glandular anal fistula have active proctitis.AIM To explore the value of differential diagnosis of PFCD and glandular anal fistula by comparing the textural feature parameters of the rectum and anal canal in fat suppression T2-weighted imaging(FS-T2WI).METHODS Patients with rectal water sac implantation were screened from the first part of this study(48 patients with PFCD and 22 patients with glandular anal fistula).Open-source software ITK-SNAP(Version 3.6.0,http://www.itksnap.org/)was used to delineate the region of interest(ROI)of the entire rectum and anal canal wall on every axial section,and then the ROIs were input in the Analysis Kit software(version V3.0.0.R,GE Healthcare)to calculate the textural feature parameters.Textural feature parameter differences of the rectum and anal canal wall between the PFCD group vs the glandular anal fistula group were analyzed using Mann-Whitney U test.The redundant textural parameters were screened by bivariate Spearman correlation analysis,and binary logistic regression analysis was used to establish the model of textural feature parameters.Finally,diagnostic accuracy was assessed by receiver operating characteristic-area under the curve(AUC)analysis.RESULTS In all,385 textural parameters were obtained,including 37 parameters with statistically significant differences between the PFCD and glandular anal fistula groups.Then,16 texture feature parameters remained after bivariate Spearman correlation analysis,including one histogram parameter(Histogram energy);four grey level co-occurrence matrix(GLCM)parameters(GLCM energy_all direction_offset1_SD,GLCM entropy_all direction_offset4_SD,GLCM entropy_all direction_offset7_SD,and Haralick correlation_all direction_offset7_SD);four texture parameters(Correlation_all direction_offset1_SD,cluster prominence_angle 90_offset4,Inertia_all direction_offset7_SD,and cluster shade_angle 45_offset7);five grey level run-length matrix parameters(grey level nonuniformity_angle 90_offset1,grey level nonuniformity_all direction_offset4_SD,long run high grey level emphasis_all direction_offset1_SD,long run emphasis_all direction_offset4_SD,and long run high grey level emphasis_all direction_offset4_SD);and two form factor parameters(surface area and maximum 3D diameter).The AUC,sensitivity,and specificity of the model of textural feature parameters were 0.917,85.42%,and 86.36%,respectively.CONCLUSION The model of textural feature parameters showed good diagnostic performance for PFCD.The texture feature parameters of the rectum and anal canal in FS-T2WI are helpful to distinguish PFCD from glandular anal fistula.

先天性巨结肠肠道微生态平衡维持措施的研究进展

先天性巨结肠是肠神经系统发育障碍、肠神经节细胞缺如引起功能性肠动力紊乱的疾病,是小儿外科常见的先天性消化道畸形疾病,其主要特征是病变肠管肌间和黏膜下神经丛内神经节细胞的缺乏引起病变肠管的痉挛。主要治疗方式为手术切除无神经节细胞肠管。针对先天性巨结肠患儿存在肠道免疫功能缺陷,容易引起细菌易位导致感染的特点,本文就营养状态、微生态制剂、扩肛、结肠灌洗、手术方式等方面对先天性巨结肠患儿肠道菌群的影响进行阐述,以加强临床医师对先天性巨结肠的认识,提高治疗效果。

Research Progress of Traditional Chinese and Western Medicine Dressing Change on Wound Healing After Anal Fistula Surgery

With the change of people’s lifestyle and diet,the incidence of anorectal diseases is increasing year by year.Anal fistula is a common anorectal disease.Because it cannot heal by itself,surgery has become the main treatment method.Due to the particularity of wound location and physiological structure,the wound is easily contaminated by bacteria,so dressing change after surgery plays a decisive role in wound healing.Modern western medicine and traditional Chinese medicine have different dressing changing methods respectively.In this paper,we reviewed commonly used dressing changing methods of traditional Chinese and western medicine after anal fistula surgery.

Therapeutic Effect of Integrated Traditional Chinese and Western Medicine on Anal Pruritus After Anorectal Surgery

Objective:To explore the therapeutic effect of integrated traditional Chinese and western medicine on anal pruritus after anorectal surgery.Methods:Ninety-eight patients with anal pruritus after anorectal surgery in our hospital were selected as the research subjects.They were divided into two groups,the control group(50 cases)and the study group(48 cases),according to the treatment plan.The control group was under a simple western medicine treatment plan,while the study group was under an integrated traditional Chinese and western medicine treatment plan.The overall efficacy,severity of anal pruritus,time to eliminate clinical symptoms,and anxiety and depression scores of the two groups of patients under different treatment plans were compared.Results:After two weeks of treatment,the total effective rate of the study group was 95.83%,which was significantly higher than that of the control group(82.00%,P<0.05).After 7 and 14 days of treatment,the anal pruritus scores improved significantly in both the groups,but the study group was superior to the control group,with statistical difference(P<0.01).The time of disappearance of skin itching and skin damage in the study group was shorter than that in the control group.After 14 days of treatment,the anxiety and depression scores of both groups were lower than those after 7 days of treatment;however,there was statistical difference between the two groups(P<0.01).Conclusion:In the clinical treatment of anorectal postoperative diseases,such as anal pruritus,the combination of traditional Chinese and western medicine can significantly improve the symptoms of pruritus,shorten the time of disappearance of clinical symptoms,improve depression and anxiety,and create a positive clinical application value in promoting the rehabilitation of patients and improving their quality of life.

金银花黄芪汤联合中药熏洗对肛瘘术后患者肛门功能及炎症因子的影响

目的探讨金银花黄芪汤联合中药熏洗对肛瘘术后患者肛门功能及炎症因子的影响。方法选择如皋市中医院肛肠外科2020年5月—2021年6月经肛瘘切除术治疗的肛瘘患者162例的病例资料,按随机对照临床研究原则,分对照组(81例)和治疗组(81例),两组均予以肛瘘切除术治疗。术后对照组采用术后温水熏洗疗法;治疗组采用金银花黄芪汤联合中药熏洗治疗,治疗前后观察并记录视觉模拟(visual analog scale,VAS)评分、大便失禁严重程度(fecal incontinence severity index,FISI)、渗液程度积分,测定肛门功能指标,治疗后采血测定血清白细胞介素族(interleukin,IL)及β内啡肽(β-endorphin,β-EP)含量,同时对比临床疗效和并发症状况。结果与手术前比较,两组患者治疗后VAS评分、FISI评分、渗液程度积分降低,治疗后肛管最大收缩压(anal maximum contraction pressure,AMCP)、肛管最长收缩时间(anal longest contraction time,ALCT)升高,直肠静息压(rectal resting pressure,RRP)、肛管静息压(anal resting pressure,ARP)降低,治疗后血清IL-4、IL-6、IL-10以及β-EP含量升高(P<0.05);与对照组比较,治疗组治疗后VAS评分、FISI、渗液程度积分较低,ALCT较低,RRP、ARP较高,血清IL-4、IL-6、IL-10以及β-EP含量较低(P<0.05);对照组创口愈合时间和住院时间(22.16±3.21)d、(20.04±2.69)d与治疗组(17.25±2.69)d、(15.92±2.34)d,差异有统计学意义(P<0.05);对照组有效率为72.84%(59/81),治疗组有效率为90.12%(73/81),治疗组高于对照组(P<0.05)。结论金银花黄芪汤联合中药熏洗对肛瘘术后患者疗效显著,较好的保护患者肛门功能,降低疼痛应激及炎症反应,值得在临床上推广应用。

面向碳中和目标的中国工业部门减排路径与战略选择

工业部门(包含电力工业)是中国碳排放量最多的国民经济部门.探寻工业部门合理有效的碳减排路径是中国碳达峰、碳中和目标顺利实现的关键.本文分解了中国2000年—2019年工业碳排放历史演变路径的驱动因素,预测了三种情景下2019年—2060年工业碳排放的潜在演变路径,估计了工业部门碳中和进程中所需的投资额,讨论了不同减排时点选择下投资需求的异质性.研究发现:1)规模效应和效率效应是历史演变路径中最关键的驱动因素,而化石能源清洁转化效应、化石能源内部结构效应和清洁能源替代效应的影响较小;2)非电力工业未来核心的碳减排技术路径为能源效率提升和清洁能源消费替代,电力工业未来核心的碳减排技术路径则为清洁能源发电替代;3)在当前的技术水平下,工业部门碳中和的进程中需要超过300万亿元的巨额投资,所需投资主要集中于高排放的非电力工业.本文最后提出了“以技术为核心,以市场为机制,以政策为引导”的中国工业部门实现碳中和的战略选择.

肛瘘镜技术临床应用专家共识

视频辅助下肛瘘治疗(video-assistedanalfistula treatment,VAAFT),简称肛瘘镜,2006年由意大利的P.Meinero教授创新地将腔镜技术引入到肛瘘的治疗[1]。肛瘘镜是一种使用硬式内镜经病理性管道进行探查和处理的肛瘘微创手术技术,具有安全、微创、有效的临床优势[2]。2014年此项技术在我国开始推广,通过近十年的应用,肛瘘镜已被应用于越来越多的疾病诊治,但是相关的适应证、禁忌证、操作规范等尚未形成共识和规范。因此,由上海市医师协会肛肠专业委员会和上海市中西医结合学会大肠肛门病专业委员会共同发起,邀请国内行业专家对肛瘘镜在肛肠疾病临床应用的适应证、禁忌证和并发症防治等问题进行讨论,以期为临床提供肛瘘镜技术在肛肠疾病应用的共识意见,提高疗效、减少并发症、加速康复。

消胀止痛锭治疗混合痔术后肛门坠胀疼痛的临床疗效观察

目的:观察消胀止痛锭治疗混合痔术后肛门坠胀疼痛的临床疗效。方法:选取2021年1月到2022年8月住院患者。将符合纳入标准的120例混合痔术后患者进行随机分组,分为治疗组和对照组,两组患者各60例。治疗组给予消胀止痛锭直肠给药,对照组给予复方角菜酸脂酸直肠给药。比较两组患者术后肛门坠胀、水肿、疼痛、抑郁、焦虑评分,住院时间、手术创面愈合时间、肛门直肠测压、盆底表面肌电图等指标。结果:治疗组术后3、5、7天的肛门水肿、坠胀、疼痛、抑郁、焦虑评分均较对照组明显缓解(P<0.01),治疗组的住院时间较对照组减少(P<0.05),治疗组的伤口愈合时间较对照组明显缩短(P<0.01),治疗组患者术前与术后盆底肌电图和肛门直肠压力未发生明显变化(P>0.05),其中对照组在术后的初始感觉、最大耐受以及排便感觉阈值较术前增高(P<0.01),肛管长度增加(P<0.05),力排时直肠收缩压明显降低(P<0.01)。表面肌电图测量中,治疗组患者术后7天与术前相比较差异无统计学意义(P>0.05),对照组术后7天盆底肌力较术前比较则有明显的降低(P<0.01)。结论:消胀止痛锭直肠给药对混合痔术后肛门坠胀疼痛有明显疗效,能缓解混合痔术后患者焦虑紧张的情绪,缩短了住院时间,促进了术后创面的愈合,未见明显不良反应,操作简便,值得临床推广应用。