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Zeng K, Zhang F, Yang H, Zha X, Fang S. Laparoscopic versus open surgery in obstructive colorectal cancer patients following stents placement: a comprehensive meta-analysis of cohort studies. Surg Endosc 2024; 38:1740-1757. [PMID: 38443501 PMCID: PMC10978680 DOI: 10.1007/s00464-024-10710-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/21/2024] [Indexed: 03/07/2024]
Abstract
BACKGROUND Over the past decade, the use of stent placement as a bridge to surgery (BTS) has emerged as an alternative to emergency surgery for patients with (OCRC). However, the optimal surgical approach remains indeterminate. This study seeks to evaluate the safety and feasibility of a combined treatment modality involving stent placement and laparoscopic surgery for OCRC presenting with malignant obstruction. METHODS A comprehensive search of PubMed, Cochrane Library, EMBASE, Web of Science, and ClinicalTrials.gov was conducted until June 2023 to identify studies that compared laparoscopic to open surgery in patients with OCBC following stent insertion. RESULTS The meta-analysis incorporated 12 cohort studies, encompassing 933 patients. There was no statistically significant difference in the 30-day mortality rates between the two groups (relative risk [RR], 1.09; 95% confidence interval [CI] 0.26 to 4.48; P = 0.95). Compared to the laparoscopic approach group, the open approach group had a higher rate of overall postoperative complications (POCs) (RR 0.52; 95% CI 0.37 to 0.72, P < 0.0001). There was no significant variance in lymph node (LN) dissection number between the groups (mean differences [MD], 1.64; 95% CI - 1.51 to 4.78; P = 0.31). Notably, laparoscopic surgery resulted in less intraoperative blood loss (MD, - 25.84 ml; 95% CI - 52.16 to 0.49; P = 0.05) and a longer operation time (MD, 20.99 mins; 95% CI 2.31 to 39.44; P = 0.03). The laparoscopic approach was associated with a shorter length of hospital stay (LOS) (MD - 3.29 days; 95% CI - 5.27 to 1.31; P = 0.001). Conversely, the open approach group had a higher rate of postoperative surgical site infection (SSI) (RR 0.47; 95% CI 0.23 to 0.96, P = 0.04). Although the number of included studies was insufficient to conduct a meta-analysis, several of them imply that laparoscopic surgery may yield more favorable outcomes in terms of the 3-year overall survival rate (OS), 3-year disease-free survival rate (DFS), 5-year OS, and 5-year DFS when compared to open surgery. It is worth noting that these differences lack statistical significance. CONCLUSION In patients with OCRC subjected to stent insertion, laparoscopic surgery arguably presents a modest superiority over open surgery by diminishing the overall postoperative risk and potentially reducing the LOS.
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Affiliation(s)
- Kerui Zeng
- Department of Colorectal Anal Surgery, Zigong Fourth People's Hospital, Zigong, Sichuan, China.
- Department of General Surgery, Zigong Fourth People's Hospital, No.282, Dangui Street, Ziliujing District, Zigong, 643000, Sichuan, People's Republic of China.
| | - Faqiang Zhang
- Department of Colorectal Anal Surgery, Zigong Fourth People's Hospital, Zigong, Sichuan, China
| | - Hua Yang
- Department of Colorectal Anal Surgery, Zigong Fourth People's Hospital, Zigong, Sichuan, China
| | - Xiaoying Zha
- Department of Wound Care Center, Department of Colorectal Anal Surgery, Zigong Fourth Hospital, Zigong, Sichuan, China
| | - Shixu Fang
- Department of Colorectal Anal Surgery, Zigong First People's Hospital, Zigong, Sichuan, China
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Hernández-González PI, Barquín J, Ortega-Ferrete A, Patón V, Ponce-Alonso M, Romero-Hernández B, Ocaña J, Caminoa A, Conde-Moreno E, Galeano J, Campo RD, García-Pérez JC. Anastomotic leak in colorectal cancer surgery: Contribution of gut microbiota and prediction approaches. Colorectal Dis 2023; 25:2187-2197. [PMID: 37743721 DOI: 10.1111/codi.16733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/15/2023] [Accepted: 07/08/2023] [Indexed: 09/26/2023]
Abstract
AIM To monitor prospectively the occurrence of colorectal anastomotic leakage (CAL) in patients with colon cancer undergoing resectional surgery, characterizing the microbiota in both faeces and mucosal biopsies of anastomosis. In a second stage, we investigated the ability to predict CAL using machine learning models based on clinical data and microbiota composition. METHOD A total of 111 patients were included, from whom a faecal sample was obtained, as well as biopsy samples from proximal and distal sites in the healthy margins of the tumour piece. The microorganisms present in the samples were investigated using microbial culture and 16S rDNA massive sequencing. Collagenase and protease production was determined, as well as the presence of genes responsible for expressing enzymes with these activities. Machine learning analyses were developed using clinical and microbiological data. RESULTS The incidence of CAL was 9.0%, and CAL was associated with collagenase/protease-producing Enterococcus. Significant differences were found in the microbiota composition of proximal and distal biopsy samples, but not in faecal samples, among patients who developed CAL. Clinical predictors of CAL were 5-day C-reactive protein and heart disease, whereas 3-day C-reactive protein and diabetes were negative predictors. CONCLUSION Biopsy samples from surgical margins, rather than faecal samples, are the most appropriate samples for exploring the contribution of the intestinal microbiota to CAL. Enterococci are only enriched in the anastomosis after surgery, and their collagenases and proteases are involved in the degradation of the anastomotic scar.
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Affiliation(s)
- Patricia I Hernández-González
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
- Grupo de Sistemas Complejos, Universidad Politécnica de Madrid, Madrid, Spain
| | - José Barquín
- Servicio de Cirugía General y Digestivo, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Ana Ortega-Ferrete
- Servicio de Cirugía General y Digestivo, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Víctor Patón
- Grupo de Sistemas Complejos, Universidad Politécnica de Madrid, Madrid, Spain
| | - Manuel Ponce-Alonso
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
- CIBERINFEC, Madrid, Spain
| | - Beatriz Romero-Hernández
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
- CIBERESP, Madrid, Spain
| | - Juan Ocaña
- Servicio de Cirugía General y Digestivo, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Alejandra Caminoa
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
- Servicio de Anatomía Patológica, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Elisa Conde-Moreno
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
- Grupo de Biomarcadores y Dianas Terapeúticas, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Javier Galeano
- Grupo de Sistemas Complejos, Universidad Politécnica de Madrid, Madrid, Spain
| | - Rosa Del Campo
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
- CIBERINFEC, Madrid, Spain
- Universidad Alfonso X El Sabio, Villanueva la Cañada, Spain
| | - Juan Carlos García-Pérez
- Servicio de Cirugía General y Digestivo, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Universidad de Alcalá de Henares, Alcalá de Henares, Spain
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Bereda G. Hypertensive Urgency and Anterior Epistaxis Caused by Antihypertensive Medication Noncompliance: A Case Report. Open Access Emerg Med 2023; 15:47-51. [PMID: 36760918 PMCID: PMC9904137 DOI: 10.2147/oaem.s400167] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/27/2023] [Indexed: 02/05/2023] Open
Abstract
Background and Aims A sudden increase in blood pressure without serious, life-threatening symptoms or indications of immediate target organ damage is referred to as "hypertensive urgency." This case study revealed the rare direct cause of epistaxis and the direct cause of hypertensive urgency in an elderly man due to antihypertensive medication noncompliance. Case Presentation A black male farmer, age 63, was brought to the emergency room on June 1st, 2022, with chief complaints of breathing difficulties, epistaxis, and disorientation. The patient was hospitalized after exhibiting symptoms of breathlessness, malaise, nausea, and vomiting. Magnetic resonance imaging, an echocardiogram, and a computed tomography scan of the brain are all clear. For the treatment of epistaxis, he received 1g of tranexamic acid intravenously three times a day for two days. He received intravenous labetalol, which was effective in treating his hypertensive urgency and rebound hypertension, utilizing repeated dosages of 5-20 mg. The patient's intravenous labetalol and previous enalapril were switched to captopril 25 mg orally three times a day for one month after starting drugs per os. Discussion The patient's hypertensive urgency is directly caused by forgetting to take his blood pressure medication and by not adhering to his previous antihypertensive drugs as prescribed. In this study, the patient's hypertension had been uncontrolled for the previous six months despite his treatment plan. Unaware that he had missed two doses of his antihypertensive medication, he was admitted to the emergency room with progressive anterior nose bleeding that persisted for four hours. The patient's elevated arterial blood pressure is what's causing the patient's nose to bleed.
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Affiliation(s)
- Gudisa Bereda
- Pharmacy Department, Alert Comprehensive Specialized Hospital, Addis Ababa, Ethiopia,Correspondence: Gudisa Bereda, Pharmacy Department, Alert Comprehensive Specialized Hospital, Addis Ababa, 1000, Ethiopia, Tel +251913118492; +251910790650, Email
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Shi S, Liu Y, Wang Z, Jin X, Yan W, Guo X, Lin B, Wang H, Li B, Zheng J, Wei Y. Fusobacterium nucleatum induces colon anastomosis leak by activating epithelial cells to express MMP9. Front Microbiol 2022; 13:1031882. [PMID: 36590433 PMCID: PMC9794562 DOI: 10.3389/fmicb.2022.1031882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/17/2022] [Indexed: 12/15/2022] Open
Abstract
Background Despite advances in anastomotic techniques and perioperative care, the incidence of anastomotic leak (AL) has not substantially decreased over time. Although it is known that AL etiology is multifactorial and the mechanisms involved remain unclear, there is accumulating evidence pointing at AL related to gut microbiota. Method We firstly performed a clinical study to analyze the gut microbiota between colorectal cancer patients who developed AL and those who did not (nAL) using 16S-rRNA sequencing and quantitative real-time PCR to identify AL risk bacterial taxa. Then we built a rat anastomosis model and performed a bacteria transplantation to ensure the cause-effect relationship. The anastomotic healing score was used to evaluate the healing of anastomosis. In addition, we assessed the adhesion ability of bacteria by staining with fluorescein isothiocyanate and attachment assay. The expression of matrix metalloproteinase 9 (MMP9) was detected by western blot, and the activity was detected by gelatin zymography. Results We found that the abundance and positive rate of Fusobacterium nucleatum (Fn) were higher in the AL patients. Exposure of the rat's colon anastomosis to Fn contributes to the loss of submucosa collagen I and III, leading to AL's pathogenesis. Fn can attach to the gut epithelial cells and stimulate intestinal MMP9 expression in vitro and in vivo. We further confirmed that these effects of Fn depended on the E-cadherin/β-catenin signaling pathway. Conclusion This work demonstrates that Fn attaches and then stimulates the expression of epithelial cells MMP9 by the E-cadherin/β-catenin signaling pathway. These effects contribute to collagen break down in the intestinal tissue, finally leading to AL.
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Affiliation(s)
- Shang Shi
- Oncology and Laparoscopy Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China,Pancreatic and Gastrointestinal Surgery Division, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Yang Liu
- Pancreatic and Gastrointestinal Surgery Division, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China,Ningbo Clinical Research Center for Digestive System Tumors, Ningbo, China
| | - Zhiyue Wang
- Oncology and Laparoscopy Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiangren Jin
- Oncology and Laparoscopy Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Yan
- Oncology and Laparoscopy Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiao Guo
- Oncology and Laparoscopy Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Baiqiang Lin
- Oncology and Laparoscopy Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Haoran Wang
- Oncology and Laparoscopy Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Bowen Li
- Oncology and Laparoscopy Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jianjun Zheng
- Imaging Center, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China,Ningbo Clinical Medical Research Center of Imaging Medicine, Ningbo, China,Jianjun Zheng,
| | - Yunwei Wei
- Pancreatic and Gastrointestinal Surgery Division, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China,Ningbo Clinical Research Center for Digestive System Tumors, Ningbo, China,*Correspondence: Yunwei Wei,
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Liu Y, Li B, Wei Y. New understanding of gut microbiota and colorectal anastomosis leak: A collaborative review of the current concepts. Front Cell Infect Microbiol 2022; 12:1022603. [PMID: 36389160 PMCID: PMC9663802 DOI: 10.3389/fcimb.2022.1022603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 10/06/2022] [Indexed: 01/24/2023] Open
Abstract
Anastomotic leak (AL) is a life-threatening postoperative complication following colorectal surgery, which has not decreased over time. Until now, no specific risk factors or surgical technique could be targeted to improve anastomotic healing. In the past decade, gut microbiota dysbiosis has been recognized to contribute to AL, but the exact effects are still vague. In this context, interpretation of the mechanisms underlying how the gut microbiota contributes to AL is significant for improving patients' outcomes. This review concentrates on novel findings to explain how the gut microbiota of patients with AL are altered, how the AL-specific pathogen colonizes and is enriched on the anastomosis site, and how these pathogens conduct their tissue breakdown effects. We build up a framework between the gut microbiota and AL on three levels. Firstly, factors that shape the gut microbiota profiles in patients who developed AL after colorectal surgery include preoperative intervention and surgical factors. Secondly, AL-specific pathogenic or collagenase bacteria adhere to the intestinal mucosa and defend against host clearance, including the interaction between bacterial adhesion and host extracellular matrix (ECM), the biofilm formation, and the weakened host commercial bacterial resistance. Thirdly, we interpret the potential mechanisms of pathogen-induced poor anastomotic healing.
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Affiliation(s)
- Yang Liu
- Pancreatic and Gastrointestinal Surgery Division, HwaMei Hospital, University of Chinese Academy of Science, Ningbo, China,Ningbo Clinical Research Center for Digestive System Tumors, Ningbo, China
| | - Bowen Li
- Pancreatic and Gastrointestinal Surgery Division, HwaMei Hospital, University of Chinese Academy of Science, Ningbo, China,Department of Oncology and Laparoscopy Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yunwei Wei
- Pancreatic and Gastrointestinal Surgery Division, HwaMei Hospital, University of Chinese Academy of Science, Ningbo, China,Ningbo Clinical Research Center for Digestive System Tumors, Ningbo, China,*Correspondence: Yunwei Wei,
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Schardey J, von Ahnen T, Schardey E, Kappenberger A, Zimmermann P, Kühn F, Andrassy J, Werner J, Arbogast H, Wirth U. Antibiotic Bowel Decontamination in Gastrointestinal Surgery—A Single-Center 20 Years’ Experience. Front Surg 2022; 9:874223. [PMID: 35651691 PMCID: PMC9150795 DOI: 10.3389/fsurg.2022.874223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Anastomotic leakage, surgical site infections, and other infectious complications are still common complications in gastrointestinal surgery. The concept of perioperative antibiotic bowel decontamination demonstrates beneficial effects in single randomized controlled trials (RCTs), but data from routine clinical use are still sparse. Our aim was to analyze the data from the routine clinical use of perioperative antibiotic bowel decontamination in gastrointestinal surgery. Methods Based on 20 years’ experience, we performed a retrospective analysis of all cases in oncologic gastrointestinal surgery with the use of antibiotic bowel decontamination in gastric, sigmoid, and rectal cancer. Clinical data and perioperative outcomes were analyzed, especially regarding anastomotic leakage, surgical site infections, and other infectious complications. Results A total of n = 477 cases of gastrointestinal surgery in gastric cancer (n = 80), sigmoid cancer (n = 168), and rectal cancer (n = 229) using a perioperative regimen of antibiotic bowel decontamination could be included in this analysis. Overall, anastomotic leakage occurred in 4.4% (2.5% gastric cancer, 3.0% sigmoid cancer, 6.1% rectal cancer) and surgical site infections in 9.6% (6.3% gastric cancer, 9.5% sigmoid cancer, 10.9% rectal cancer). The incidence of all infectious complications was 13.6% (12.5% gastric cancer, 11.3% sigmoid cancer, 15.7% rectal cancer). Mortality was low, with an overall rate of 1.1% (1.3% gastric cancer, 1.8% sigmoid cancer, 0.4% rectal cancer). Antibiotic decontamination was completed in 98.5%. No adverse effects of antibiotic bowel decontamination could be observed. Conclusion Overall, in this large cohort, we can report low rates of surgery-related serious morbidity and mortality when perioperative antibiotic bowel decontamination is performed. The rates are lower than other clinical reports. In our clinical experience, the use of perioperative antibiotic bowel decontamination appears to improve patient safety and surgical outcomes during gastrointestinal oncologic procedures in a routine clinical setting.
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Affiliation(s)
- Josefine Schardey
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
- Institute for Surgical Research Oberbayern, Hausham, Germany
| | - Thomas von Ahnen
- Institute for Surgical Research Oberbayern, Hausham, Germany
- Department for General, Visceral, Endocrine and Vascular Surgery, Krankenhaus Agatharied GmbH, Hausham, Germany
| | - Emily Schardey
- Institute for Surgical Research Oberbayern, Hausham, Germany
| | - Alina Kappenberger
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Petra Zimmermann
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Florian Kühn
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Joachim Andrassy
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Jens Werner
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Helmut Arbogast
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Ulrich Wirth
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
- Institute for Surgical Research Oberbayern, Hausham, Germany
- Correspondence: Ulrich Wirth
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Safety and Efficacy of Local Tranexamic Acid for the Prevention of Surgical Bleeding in Soft-Tissue Surgery: A Review of the Literature and Recommendations for Plastic Surgery. Plast Reconstr Surg 2022; 149:774-787. [PMID: 35196701 PMCID: PMC8860217 DOI: 10.1097/prs.0000000000008884] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background: Although high-bleed surgery routinely utilizes the antifibrinolytic drug tranexamic acid, most plastic surgical procedures are conducted in soft tissue with low-volume bleeding. Unease regarding possible systemic adverse effects prevents widespread systemic use, but local use of tranexamic acid is gaining popularity among plastic surgeons. Randomized controlled trials on topical use of tranexamic acid are mainly from high-bleed surgeries, and few studies address the effect in soft tissue. This article reviews the scientific evidence regarding local use of tranexamic acid in soft-tissue surgery, discusses pharmacological effects and possible adverse reactions, and presents recommendations for use in plastic surgery. Methods: A systematic search of databases for studies on local use of tranexamic acid in soft-tissue surgery was performed. Randomized controlled trials were included for a systematic review on effect; a narrative review regarding other clinically relevant aspects is based on extensive literature searches combined with the authors’ own research. Results: Fourteen randomized controlled trials, including 1923 patients, were included in the systematic review on local use of tranexamic acid in soft-tissue surgery. Conclusions: Local use of tranexamic acid may reduce blood loss comparably to intravenous prophylactic use with negligible risk of systemic adverse effects, but high-quality randomized controlled trials are few. Prolonged exposure to high local concentrations is discouraged, and direct contact with the central nervous system may cause seizures. No single superior means of administration or dosage is supported in the literature, and lowest effective dose is unknown. There may not be one single ideal dosing regimen, but rather many possibilities adaptable for different surgical situations.
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Zhao Y, Li B, Sun Y, Liu Q, Cao Q, Li T, Li J. Risk Factors and Preventive Measures for Anastomotic Leak in Colorectal Cancer. Technol Cancer Res Treat 2022; 21:15330338221118983. [PMID: 36172641 PMCID: PMC9523838 DOI: 10.1177/15330338221118983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Anastomotic leak (AL) represents one of the most detrimental complications after colorectal surgery. The patient-related factors and surgery-related factors leading to AL have been identified in previous studies. Through early identification and timely adjustment of risk factors, preventive measures can be taken to reduce potential AL. However, there are still many problems associated with AL. The debate about preventive measures such as preoperative mechanical bowel preparation (MBP), intraoperative drainage, and surgical scope also continues. Recently, the gut microbiota has received more attention due to its important role in various diseases. Although the underlying mechanisms of gut microbiota on AL have not been validated completely, new strategies that manipulate intrinsic mechanisms are expected to prevent and treat AL. Moreover, laboratory examinations for AL prediction and methods for blood perfusion assessment are likely to be promoted in clinical practice. This review outlines possible risk factors for AL and suggests some preventive measures in terms of patient, surgery, and gut microbiota.
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Affiliation(s)
- Yongqing Zhao
- 154454Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Bo Li
- 74569Department of Rehabilitation Medicine, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yao Sun
- 154454Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Qi Liu
- 154454Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Qian Cao
- 154454Department of Education, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Tao Li
- 154454Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Jiannan Li
- 154454Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China
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Alverdy JC, Schardey HM. Anastomotic Leak: Toward an Understanding of Its Root Causes. J Gastrointest Surg 2021; 25:2966-2975. [PMID: 34100248 PMCID: PMC8815793 DOI: 10.1007/s11605-021-05048-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 05/18/2021] [Indexed: 01/31/2023]
Abstract
BACKGROUND When an anastomotic leak is discussed at a typical surgical morbidity and mortality conference, it is often presented as a due to an error in surgical technique involving ischemia, tension, or device failure. Here we assert that without direct visual analysis of the leak site and its tissue histology, an ex post facto claim that an anastomotic leak is due to an error in surgical technique remains speculative. METHODS The arguments and rationale used to conclude that an anastomotic leak is due to an error in surgical technique are critically reviewed and assessed for their validity. RESULTS No case series or literature exists in which a root cause analysis has been carried out with visual and tissue level evidence to determine the root cause(s) of an anastomotic leak. CONCLUSIONS At the individual case level, declaring that an anastomotic leak is due to an error in surgical technique without clear and compelling evidence either visually and/or at the tissue level to substantiate such a claim remains speculative.
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Affiliation(s)
- John C Alverdy
- Department of Surgery, University of Chicago, Pritzker School of Medicine, 5841 S. Maryland, Chicago, IL, 60637, USA,Corresponding author
| | - Hans Martin Schardey
- Department of General, Visceral, and Transplantation Surgery, Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377, Munich, Germany and Department of General, Visceral and Vascular Surgery, Agatharied Hospital, Norbert-Kerkel-Platz, 83734, Hausham, Germany
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Anastomotic leak risk in complete responders to neoadjuvant therapy for rectal cancer: a systematic review. Int J Colorectal Dis 2021; 36:671-676. [PMID: 33427960 DOI: 10.1007/s00384-021-03833-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/05/2021] [Indexed: 02/04/2023]
Abstract
PURPOSE The oncological benefits of achieving a complete pathological response following neoadjuvant chemoradiotherapy for rectal cancer are well defined. How a pathological response affects anastomotic healing or leak rates is not clear. The aim of this systematic review was to compare anastomotic leak rates among patients who did and did not achieve a complete pathological response. METHODS Three major databases (PubMed, Embase, and Scopus) were searched. Predetermined inclusion criteria included prospective and retrospective articles published in English reporting complete pathological response and anastomotic leak rates following total mesorectal excision in ≥ 30 patients with rectal cancer who underwent neoadjuvant chemoradiotherapy and total mesorectal excision. The primary outcomes measured included complete pathological response and 30-day postoperative morbidity. RESULTS From a total of 8919 patients with rectal cancer in 7 studies, 4165 fulfilled the criteria for inclusion. The majority (> 80%) of patients had clinical stage II or III disease. A defunctioning loop ileostomy was formed in 76.5%. A total of 589 (14.1%) patients achieved a pCR of whom 63 (10.7%) developed an anastomotic leak compared to 272/3576 (7.6%) patients without a pCR (p = 0.02). CONCLUSION Patients with complete pathological response following neoadjuvant chemoradiotherapy and total mesorectal excision may be at higher risk of anastomotic leak than incomplete responders. This may need to be taken into account when counseling patients about the relative risks of organ preservation versus anterior resection.
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11
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Patient Acceptance of Routine Serial Postoperative Endoscopy Following Low Anterior Resection (LAR) and Its Ability to Detect Biomarkers in Anastomotic Lavage Fluid. World J Surg 2021; 45:2227-2234. [PMID: 33742231 DOI: 10.1007/s00268-021-06062-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Various reports have now established that postoperative endoscopy to examine and intervene in the process of anastomotic healing is both feasible and safe. Here we present our preliminary experience with serial postoperative endoscopy to determine its feasibility, patient acceptance and the ability to obtain and the utility of perianastomotic material for molecular analysis. METHODS Patients undergoing LAR with ileostomy for rectal cancer were recruited for study to undergo routine serial endoscopic surveillance (SES) at three time points during the course of LAR: intraoperatively, before discharge (postoperative day 3-7) and at follow-up (postoperative day 10-28). At each endoscopy, images were captured, anastomotic tissues were lavaged and lavage fluid was retrieved. Fluid samples were analyzed using proteomics, zymography, ELISA and bacteria via 16S rRNA gene amplicon sequencing and culture of collagenolytic strains. RESULTS SES is feasible and acceptable to this limited set of patients following LAR. Biologic analysis of perianastomotic fluids was able to detect the presence of proteins, microbiota and inflammatory mediators previously identified at anastomotic sites in animals with pathologic healing. CONCLUSION SES can be implemented in patients undergoing LAR with a high degree of patient compliance and capture of biologic information and imaging. Application of this approach has the potential to uncover, for the first time, the natural history of normal versus pathologic anastomotic healing in patients undergoing anastomotic surgery.
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The Benefits of Robotic Surgery: Are They Technical or Molecular? J Gastrointest Surg 2021; 25:578-580. [PMID: 33409821 PMCID: PMC7904706 DOI: 10.1007/s11605-020-04901-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 12/19/2020] [Indexed: 01/31/2023]
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Foppa C, Ng SC, Montorsi M, Spinelli A. Anastomotic leak in colorectal cancer patients: New insights and perspectives. Eur J Surg Oncol 2020; 46:943-954. [PMID: 32139117 DOI: 10.1016/j.ejso.2020.02.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 02/09/2020] [Accepted: 02/20/2020] [Indexed: 12/14/2022] Open
Abstract
Anastomotic leak (AL) remains a potentially life-threatening sequela of colorectal surgery impacting on mortality, short- and long-term morbidity, quality of life, local recurrence (LR) and disease-free survival. Despite technical improvements and the identification of several surgery- and patient-related factors associated to the risk of AL, its incidence has not significantly changed over time. In this context, the clarification of the mechanisms underlying anastomotic healing remains an important unmet need, crucial for improving patients' outcomes. This review concentrates on novel key findings in the etiopathogenesis of AL, how they can contribute in determining LR, and measures which may contribute to reducing its incidence. AL results from a complex, dynamic interplay of several factors and biological processes, including host genetics, gut microbiome, inflammation and the immune system. Many of these factors seem to act in concert to drive both AL and LR, even if the exact mechanisms remain to be elucidated. The next generation sequencing technology, including the microbial metagenomics, could lead to tailored bowel preparations targeting only those pathogens that can cause AL. Significant progress is being made in each of the reviewed areas, moving toward translational and targeted therapeutic strategies to prevent the difficult complication of AL.
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Affiliation(s)
- Caterina Foppa
- Division of Colon and Rectal Surgery, Humanitas Clinical and Research Hospital, Rozzano, Milan, Italy.
| | - Siew Chien Ng
- Department of Medicine and Therapeutics, Division of Gastroenterology and Hepatology, State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China.
| | - Marco Montorsi
- Division of General and Digestive Surgery, Humanitas Clinical and Research Hospital, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy.
| | - Antonino Spinelli
- Humanitas Clinical and Research Center - IRCCS -, via Manzoni 56, 20089 Rozzano (Mi) - Italy; Humanitas University, Department of Biomedical Sciences, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele - Milan, Italy.
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