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ORAL BACTERIA AND COLORECTAL PATHOLOGY 口腔细菌与结直肠病理
Pub Date : 2021-06-01 DOI: 10.30476/ACRR.2021.91493.1105
Vineet Nair
Context- The oral cavity and the colon, though part of the alimentary tract are distantly located anatomically and hence are colonized by totally divergent microbes. The mouth is affected by several pathologies and so is the colon. So it is quite natural to investigate the probable connection between poor oral health and colorectal pathologies. Evidence acquisition- This article is a small attempt to identify the oral microbiota, how they translocate to the colon-rectum area and then how do they create pathology there. Pubmed indexed journals relating to this topic were screened and shortlisted to construct this article. Results- The organisms generally responsible for the oral diseases, namely Fusobacterium nucleatum and Porphyromonas gingivalis among others have been found in colon disorders resulting in intestinal dysbiosis and ultimately leading to colorectal cancer. Conclusions- If the disease pathogenesis is well understood, then it will open new ways on how to prevent or treat colorectal pathologies. However further studies are needed in this arena.
背景-口腔和结肠,虽然消化道的一部分在解剖学上位于较远的位置,因此由完全不同的微生物定植。口腔受到几种疾病的影响,结肠也是如此。因此,研究口腔健康状况不佳与结直肠疾病之间的可能联系是很自然的。证据收集-这篇文章是一个小的尝试来确定口腔微生物群,它们是如何转移到结肠-直肠区域的,以及它们是如何在那里造成病理的。筛选并入围了与该主题相关的Pubmed索引期刊,以构建本文。结果-通常导致口腔疾病的微生物,如核梭杆菌和牙龈卟啉单胞菌等,已在结肠疾病中发现,导致肠道生态失调,最终导致结直肠癌。结论-如果疾病的发病机制被很好地理解,那么它将为如何预防或治疗结直肠病理开辟新的途径。然而,在这一领域还需要进一步的研究。
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引用次数: 1
The Role of endoplasmic reticulum metallo protease 1 on Autophagy Pathway in HCT-116 Colorectal Cancer Cell Line 内质网金属蛋白酶1在HCT-116结直肠癌细胞自噬途径中的作用
Pub Date : 2021-06-01 DOI: 10.30476/ACRR.2021.91373.1102
Mozhdeh Zamani, S. Dastghaib, Mehran Erfani, S. Hosseini, P. Mokarram
BackgroundAutophagy and unfolded protein response (UPR) are mechanisms with dual roles in both maintaining the cellular homeostasis and progression of various diseases such as cancer. Therefore, identification of different molecules and proteins involved in the regulation of these pathways may contribute to find new therapeutic targets. A member of the M28 family of the metallopeptidases, Endoplasmic Reticulum Metallo Protease 1 (ERMP1), is overexpressed in cancers such as colorectal cancer. The role of this protein in the UPR activation was previously reported in breast cancer. We aimed to evaluate the role of ERMP1 in the activation of autophagy and apoptosis in colorectal cancer.MethodsERMP1 Gene silencing was performed using specific small hairpin RNA (shRNA) in HCT-116 colorectal cancer cell line. Then, autophagy associated protein markers including Beclin 1, p62 and LC3II were evaluated using western blot. The effect of ERMP1 knockdown on cellular apoptosis was also assessed by propidium iodide staining flow cytometry analysis. Statistical analysis was performed using SPSS software version 20.ResultsAll three autophagy markers were increased significantly in the ERMP1-silenced HCT116 cell lines compared with negative control cells (P 0.05).ConclusionThe oncogenic protein, ERMP1, activates autophagy in colorectal cancer cell line. Targeting of ERMP1 may be considered as a proper approach in colorectal cancer therapy. Further investigations are required to confirm these results.
自噬和未折叠蛋白反应(UPR)在维持细胞稳态和癌症等多种疾病的进展中具有双重作用。因此,鉴定参与这些途径调控的不同分子和蛋白质可能有助于发现新的治疗靶点。作为金属肽酶M28家族的一员,内质网金属蛋白酶1 (ERMP1)在结直肠癌等癌症中过度表达。该蛋白在UPR激活中的作用先前在乳腺癌中有报道。我们的目的是评估ERMP1在大肠癌自噬和凋亡激活中的作用。方法采用特异性小发夹RNA (shRNA)对HCT-116结直肠癌细胞株进行sermp1基因沉默。然后用western blot检测自噬相关蛋白标志物Beclin 1、p62和LC3II。用碘化丙啶染色流式细胞术分析ERMP1敲低对细胞凋亡的影响。采用SPSS软件20进行统计分析。结果ermp1沉默的HCT116细胞3种自噬标志物均较阴性对照显著升高(P < 0.05)。结论致癌蛋白ERMP1激活结直肠癌细胞自噬。以ERMP1为靶点治疗结直肠癌可能是一种合适的方法。需要进一步调查以证实这些结果。
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引用次数: 0
Collagenous Enteritis – An Alternative Cause of Malabsorptive Enteropathy 胶原性肠炎-吸收性肠病的另一种病因
Pub Date : 2021-06-01 DOI: 10.30476/ACRR.2021.91296.1100
Ebrahim Mirakhor, June Choe, R. Goodman
IntroductionCollagenous Enteritis (CE) is a less common cause of enteropathy presenting with malabsorption as its cardinal symptom. While historically considered a resistant form of celiac disease, newer evidence supports the interaction between genetic predispositions and environmental triggers as the pathophysiologic basis of CE.Case PresentationHerein we present the case of a 40-year-old woman with two-year history of diarrhea and 32 kg weight loss who was incorrectly diagnosed with celiac disease with refractory symptoms despite adherence to a gluten-free diet. Extensive infectious, inflammatory, secretory, autoimmune workup did not reveal an underlying etiology. Endoscopic evidence of severe villous blunting and biopsy with characteristic patchy enlarged subepithelial collagen layer solidified a diagnosis of CE. Treatment with steroids resulted in resolution of malabsorptive symptoms and gradual weight gain.ConclusionThis case highlights the importance of considering CE in patients presenting with malabsorption especially given significant clinical overlap with other malasbsorptive conditions as well as its therapeutic implications.
胶原性肠炎(CE)是一种不太常见的肠病,以吸收不良为主要症状。虽然历来被认为是一种抗性乳糜泻,但新的证据支持遗传易感性和环境诱因之间的相互作用是CE的病理生理基础。病例介绍在此,我们提出一个40岁的妇女,有两年的腹泻史,体重减轻32公斤,尽管坚持无麸质饮食,但她被错误地诊断为乳糜泻,症状难治性。广泛的感染、炎症、分泌、自身免疫检查未发现潜在的病因。内窥镜下绒毛严重变钝,活检表现为特征性的斑片状扩大的上皮下胶原层,证实了CE的诊断。类固醇治疗导致吸收不良症状消退,体重逐渐增加。结论:本病例强调了在出现吸收不良的患者中考虑CE的重要性,特别是考虑到与其他吸收不良疾病的临床重叠以及其治疗意义。
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引用次数: 0
Technique of Ghost (Khatith) Ileostomy-How I Do It? 幽灵(卡提斯)回肠造口术——我该怎么做?
Pub Date : 2021-06-01 DOI: 10.30476/ACRR.2021.89835.1082
M. Khan, N. Chowdri, R. Wani, F. Parray, A. Mehraj, A. Baba, M. Laway
The concept of ghost/Khatith ileostomy is a bridge between covering ileostomy and no-ileostomy (‘Khatith’ meaning ‘hidden’ in Kashmiri language). We performed the pre-stage ghost ileostomy (GI) without parietal wall split. The technique of GI is that after the completion of resection-anastomosis of rectal cancer, a terminal ileal loop at about 20cm from ileocecal junction is identified. Small (10-12F) Ryle’s tube (RT) is passed through a small opening in the mesentery of the identified ileal loop. A small 4-5mm incision is given on abdominal wall at pre-operatively marked proposed stoma site in right iliac fossa region. Haemostatic Kelly’s forceps is introduced through this small incision to get out the two limbs of the RT that has been already looped around the identified ileal loop. These two limbs of the RT are cut short and fixed to each other and to the skin around it with 2-0 silk sutures, taking care to keep the tubing loop loose enough to avoid any tension to the vascular supply of the ileal loop and without causing any luminal compression of the loop to avoid bowel obstruction. In case of AL, the pre-stage GI can be converted into a formal covering stoma under local or spinal anesthesia by gentle pull of the two limbs of the looped RT to extract the isolated ileal loop through an adequate circular incision around the site of GI. In case of uncomplicated postoperative course, the fixing RT is pulled out gently from the abdominal cavity to release down the GI.
幽灵/Khatith回肠造口术的概念是覆盖回肠造口术和无回肠造口术之间的桥梁(“Khatith”在克什米尔语中的意思是“隐藏”)。我们在不劈开肠壁的情况下进行了预造回造口术。GI技术是在直肠癌切除吻合术完成后,在距回盲交界处约20cm处发现回肠末端袢。小(10-12F)赖尔管(RT)通过确定回肠袢肠系膜上的一个小开口。在腹壁右侧髂窝区术前标记的建议造口处做一个4-5mm的小切口。止血凯利钳通过这个小切口取出RT的两个肢体,这两个肢体已经绕在确定的回肠环周围。RT的这两个分支被剪短,用2-0丝缝合线相互固定,并与周围的皮肤固定,注意保持管环足够宽松,以避免对回肠袢的血管供应造成任何张力,也不会造成回袢的管腔压迫,以避免肠梗阻。在AL情况下,在局部或脊髓麻醉下,通过在胃肠道周围适当的圆形切口,轻轻牵拉环形RT的两肢,将孤立回肠袢取出,将前期胃肠道转化为正式的覆盖口。在术后过程简单的情况下,将固定RT从腹腔中轻轻拔出,向下释放胃肠道。
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引用次数: 1
Colorectal Cancer in People with Cystic Fibrosis under the Age of 40: A Case Series 40岁以下囊性纤维化患者的结直肠癌:一个病例系列
Pub Date : 2021-04-01 DOI: 10.30476/ACRR.2021.89837.1083
S. Devarajan, Benjamin L. Musher, J. Abraham
Introduction Mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene cause cystic fibrosis (CF), a disease which affects primarily the respiratory and gastrointestinal (GI) tracts. The lifetime risk of colorectal cancer (CRC) in patients with CF is approximately 5-10 times that of the general population. In 2018, the CF Foundation CRC Screening Task Force recommended initiating CRC screening in adults with CF at age 40. Case Presentations In this case series, we present three cases of females with CF younger than age 40 diagnosed with CRC with variable presentations and stages. We discuss the data supporting current CRC screening guidelines in CF in an effort to raise awareness among clinicians regarding young-onset CRC in this population. Furthermore, we aim for this case series to help drive further investigation into the mechanisms underlying CF-related CRC and to open the door to changes in current screening practices. Conclusion People with CF are at substantially higher risk of development of CRC relative to the general population. While current CRC screening practices advocate for earlier screening in this population compared to average-risk patients, this case series highlights potential limitations to current screening guidelines.
囊性纤维化跨膜传导调节因子(CFTR)基因突变导致囊性纤维化(CF),这是一种主要影响呼吸道和胃肠道的疾病。CF患者患结直肠癌(CRC)的终生风险约为一般人群的5-10倍。2018年,CF基金会CRC筛查工作组建议对40岁的成年CF患者进行CRC筛查。在这个病例系列中,我们报告了三例年龄小于40岁的女性CF,诊断为CRC,表现和分期不同。我们讨论了支持CF中当前CRC筛查指南的数据,以提高临床医生对这一人群中年轻发病的CRC的认识。此外,我们的目标是通过这个病例系列来帮助推动对cf相关CRC的潜在机制的进一步研究,并为当前筛查实践的改变打开大门。结论CF患者发生结直肠癌的风险明显高于普通人群。虽然目前的CRC筛查实践提倡在这一人群中进行比平均风险患者更早的筛查,但该病例系列强调了当前筛查指南的潜在局限性。
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引用次数: 0
Concomitant enterostomy closure and ventral abdominal wall reconstruction using the Lázaro da Silva technique 使用Lázaro da Silva技术进行肠造口闭合和腹壁重建
Pub Date : 2021-04-01 DOI: 10.30476/ACRR.2021.90252.1086
R. M. Melo, Pedro Ducatti Oliveira-e-Silva, E. Oliveira
We present a small series of patients who underwent concomitant treatment of external digestive bypass (stoma) and incisional hernia, using the Lazaro da Silva technique - a special method of purely tissue repair. The rational was not to use meshes on contaminated wounds. Initially, five patients were enrolled and all were operated on by the same group. Some demographic data were recorded, but also the time interval between the making of the stoma (or the appearance of the enterocutaneous fistula). Some characteristics of the hernia and data related to surgical procedures were also pointed out. The primary outcome was to verify the rate of hernial recurrence, but also the surgical site occurrences in the first 30 days. Only one patient had superficial wound infection and in none of them was a recurrence detected. Our work raises some questions about the best approach in these more complex cases, such as dissociating or not dissociating the procedures, the use of meshes anyway, and employment of mini-invasive surgery in some steps.
我们介绍了一小部分患者,他们使用Lazaro da Silva技术(一种纯组织修复的特殊方法)接受了外部消化搭桥(造口)和切口疝的同时治疗。合理的做法是不要在污染的伤口上使用网格。最初,5名患者被招募,所有患者都由同一组进行手术。记录了一些人口统计学数据,但也记录了造口(或肠皮瘘的出现)之间的时间间隔。本文还指出了疝的一些特点和与外科手术有关的资料。主要结果是验证疝复发率,以及手术部位在前30天的发生率。仅有1例患者有浅表伤口感染,且均未发现复发。我们的工作提出了一些关于在这些更复杂的情况下的最佳方法的问题,例如分离或不分离手术,无论如何使用网格,以及在某些步骤中使用微创手术。
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引用次数: 0
Bioactive compounds as a potential inhibitor of colorectal cancer; an insilico study of Gallic acid and Pyrogallol 生物活性化合物作为潜在的结直肠癌抑制剂没食子酸和邻苯三酚的计算机研究
Pub Date : 2021-04-01 DOI: 10.30476/ACRR.2021.89642.1080
P. Mohapatra, D. Mitra, A. Dey, Ishita Biswas
Abstract Introduction- Now a day’s colorectal cancer (CRC) is one of the most deadly cancers in the world. The objective of this investigation was to evaluate the protective effect of gallic acid and pyrogallol in colorectal cancer. Previous reports suggest that there is an association present between some tannase producing bacteria and colorectal cancer. Tannase hydrolyze tannic acid into gallic acid and pyrogallol. Are those compounds have any therapeutic effect on colorectal cancer? This study will help to find those quarries. Methods-The remedial effect of gallic acid and pyrogallol was studied by descriptor properties and molecular docking methods. 100 CRC causing protein structures were docked in this investigation. Results- Lipinski Rule of Five and other descriptor properties of those compounds have showed their nontoxic and therapeutic nature. Molecular docking studies have showed highest score -38.22 KJ/Mol with gallic acid and -33.6 KJ/Mol with pyrogallol. Conclusion- This is the first report on docking investigation of these large numbers of protein. The findings of this research concluded that gallic acid and pyrogallol have a protective effect in colorectal cancer by stopping the effect of those CRC causing protein.
摘要导读-现在一天的结直肠癌(CRC)是世界上最致命的癌症之一。本研究的目的是评价没食子酸和邻苯三酚对结直肠癌的保护作用。先前的报告表明,某些产生单宁酶的细菌与结直肠癌之间存在关联。单宁酶将单宁酸水解成没食子酸和邻苯三酚。这些化合物对结直肠癌有治疗作用吗?这项研究将有助于找到这些采石场。方法采用描述子性质和分子对接方法研究没食子酸和邻苯三酚的治疗效果。在这项研究中发现了100个引起结直肠癌的蛋白质结构。结果:这些化合物的利平斯基五定律和其他描述性质显示了它们的无毒和治疗性质。分子对接研究表明,与没食子酸和邻苯三酚的分子对接得分最高,分别为-38.22 KJ/Mol和-33.6 KJ/Mol。结论:这是首次对这些大量蛋白进行对接研究的报道。本研究结果表明,没食子酸和邻苯三酚通过阻止结直肠癌致病蛋白的作用,对结直肠癌具有保护作用。
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引用次数: 11
Perforation Due to Rectal Foreign Body and Radiological Findings 直肠异物穿孔及影像学表现
Pub Date : 2021-04-01 DOI: 10.30476/ACRR.2021.90332.1090
T. Uuml, Saim Rkoğlu, Adem Yokuş, Fırat Aslan
Perforation Due to Rectal Foreign Body and Radiological Findings Introduction: Rectal foreign bodies have been increasingly seen and cause urgent surgical complications. Diagnosis and treatment of these cases in emergency departments may be difficult. The effective use of radiological imaging techniques can accelerate and facilitate this process. Case presentation: A 65-year-old male patient, who underwent computed tomography with the suspicion of a foreign body in the rectum, was admitted to the emergency outpatient clinic. The patient was a male patient with a psychiatric illness who later underwent emergency surgery. Since the patient had impaired consciousness during the examination, anamnesis could not be obtained, so surgical consultation in the emergency service was first consulted as perforation due to rectal tumoral thickening. In almost all cases, plain radiography is sufficient and can eliminate diagnostic difficulties. However, this is not possible in non-opaque objects. Therefore, CT played an important role in the diagnosis of this patient. A 30cm foreign body, salami, was removed from the abdomen of the patient, who was later taken into emergency surgery. Conlusion: The guiding role of radiological examinations in diagnosis and treatment was discussed, and it was emphasized that CT is a problem-solving tool for rectal foreign body.
直肠异物穿孔及其影像学表现简介:直肠异物越来越多地出现并引起紧急手术并发症。在急诊科诊断和治疗这些病例可能很困难。放射成像技术的有效使用可以加速和促进这一过程。病例介绍:一名65岁男性患者,因怀疑直肠内有异物而行计算机断层扫描,被送入急诊门诊。患者是一名患有精神疾病的男性患者,后来接受了紧急手术。由于患者在检查时意识受损,无法获得记忆,因此急诊外科会诊首先以直肠肿瘤增厚穿孔就诊。在几乎所有病例中,x线平片是足够的,可以消除诊断困难。然而,这在非透明对象中是不可能的。因此,CT在该患者的诊断中发挥了重要作用。从患者的腹部取出了一个30厘米的异物,香肠,随后被送往紧急手术。结论:讨论了影像学检查在诊断和治疗中的指导作用,强调CT是直肠异物解决问题的工具。
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引用次数: 0
SIMPLE ANAL FISTULA: CLINICAL CRITERIA FOR DIAGNOSIS AND LOCAL ANESTHESIA WITH CONSCIOUS SEDATION FOR SURGERY - AN OBSERVATIONAL STUDY 单纯性肛瘘:诊断的临床标准和手术局麻清醒镇静-一项观察性研究
Pub Date : 2021-04-01 DOI: 10.30476/ACRR.2021.90260.1085
BHUPENDRA KUMAR JAIN, H. Gupta, M. Mohta, Nitasha Sharma, Sanjay Gupta
ABSTRACT PURPOSE: To evaluate (i) acceptability of surgery for simple anal fistula under local anesthesia with conscious sedation by the patients and (ii) accuracy of a set of clinical criteria for diagnosis of simple anal fistula. METHODS: A set of clinical criteria based on physical findings was used to diagnose patients with simple anal fistula. These patients were operated under local anesthesia with conscious sedation. Intravenous paracetamol, diclofenac sodium, and midazolam were administered as adjuvants. Fistulotomy with/without marsupialisation was performed in most patients. Clinical diagnosis was matched with operative findings. RESULTS: Among 193 patients presenting with anal fistula, 61 patients were diagnosed as simple anal fistula and were scheduled for surgery under local anesthesia with conscious sedation. One patient was found to have complex anal fistula during intraoperative assessment and surgery was deferred. Surgery could be completed under local anesthesia with conscious sedation for 58/60 (96.7%) patients. Acceptability of the procedure was assessed with two parameters: the patients’ satisfaction score on visual analogue scale and their willingness to undergo fistula surgery under local anesthesia again, if required. Median (interquartile range) visual analogue scale score for patients’ satisfaction was 10 (9-10). All the patients expressed their willingness to undergo fistula surgery under local anesthesia again, if required. The clinical criteria was successful in diagnosing simple anal fistula in 58/61 (95.1%) patients. The remaining three patients had high intersphincteric fistula (1) and blind sinus (2). CONCLUSIONS: Acceptability of surgery for simple anal fistula under local anesthesia with conscious sedation was excellent. The proposed clinical criteria were highly accurate in diagnosing simple anal fistula.
目的:评估(i)局部麻醉下单纯性肛瘘患者在清醒镇静下手术的可接受性和(ii)单纯性肛瘘诊断的一套临床标准的准确性。方法:采用一套基于身体表现的临床诊断标准对单纯性肛瘘进行诊断。这些患者在局部麻醉和清醒镇静下进行手术。静脉注射扑热息痛、双氯芬酸钠和咪达唑仑作为佐剂。大多数患者行瘘管切开术伴/不伴有袋化。临床诊断与手术表现相符。结果:193例肛瘘患者中,61例诊断为单纯性肛瘘,在局麻清醒镇静下行手术治疗。一名患者在术中评估时发现有复杂的肛瘘,手术被推迟。58/60(96.7%)患者可在局麻清醒镇静下完成手术。通过两个参数来评估手术的可接受性:患者的视觉模拟量表满意度评分和如果需要,他们是否愿意在局部麻醉下再次进行瘘管手术。患者满意度视觉模拟量表得分中位数(四分位范围)为10分(9-10分)。所有患者均表示如有需要,愿意在局麻下再次行瘘管手术。单纯肛瘘的诊断成功率为58/61(95.1%)。其余3例患者存在高括约肌间瘘(1例)和盲窦(2例)。结论:局麻清醒镇静下单纯性肛瘘手术可接受性好。提出的临床诊断标准对单纯性肛瘘的诊断准确率较高。
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引用次数: 0
Sigmoid volvulus: 10-year report from Maharat Nakhon Ratchasima Hospital 乙状结肠扭转:Maharat Nakhon Ratchasima医院10年报告
Pub Date : 2021-03-01 DOI: 10.30476/ACRR.2021.89658.1081
Warut Boonnithi
Introduction: Sigmoid volvulus is an uncommon cause of colonic obstruction in adults. There have been fewer reports of sigmoid volvulus in Thailand. The aims of this study were to assess characteristics and outcomes of treatment in patients who were diagnosed with sigmoid volvulus at Maharat Nakhon Ratchasima Hospital over a 10-year period. Methods: This retrospective study included 42 sigmoid volvulus patients between 01/2010 and 12/2019. Patients’ characteristics, investigations for diagnosis, operative details and postoperative outcomes were analyzed. Results: From 42 sigmoid volvulus patients, 34 (80%) were males with average age of 64.6 years. Two most common co-morbidities were hypertension (33.3%) and bedridden status (14.2%). Classic “Coffee bean” sign on plain abdominal radiography was found in 33 patients (78.6%). Colonoscopic detorsion was attempted in 17 patients (40.5%) with a success rate of 76.5%. From 13 patients who had successful detorsion, only 5 patients (38.5%) underwent sigmoidectomy with primary anastomosis in the same index admission. Overall 30-day mortality rate was 9.5% and mortality rate was 10.3% for emergency surgery. Conclusions: Sigmoid volvulus usually presents in elderly patients. Endoscopic detorsion should be the initial management of patients without peritonitis. Sigmoidectomy should be done in the same index admission.
乙状结肠扭转是一种罕见的成人结肠梗阻的原因。泰国乙状结肠扭转的报告较少。本研究的目的是评估在Maharat Nakhon Ratchasima医院诊断为乙状结肠扭转的患者10年期间的特征和治疗结果。方法:对2010年1月至2019年12月42例乙状结肠扭转患者进行回顾性研究。分析患者特点、诊断方法、手术细节及术后结果。结果:42例乙状结肠扭转患者中,男性34例(80%),平均年龄64.6岁。两种最常见的合并症是高血压(33.3%)和卧床不起(14.2%)。33例(78.6%)患者腹部平片表现为典型的“咖啡豆”征。17例(40.5%)患者尝试结肠镜下扭转,成功率为76.5%。在13例成功扭转的患者中,只有5例(38.5%)在同一指数入院时行乙状结肠切除术并一期吻合。总的30天死亡率为9.5%,急诊手术死亡率为10.3%。结论:乙状结肠扭转多见于老年患者。内镜下扭转应作为无腹膜炎患者的首选治疗方法。乙状结肠切除术应在同一指数入院时进行。
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引用次数: 0
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Annals of Colorectal Research
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