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Weaver L, Troester A, Jahansouz C. The Impact of Surgical Bowel Preparation on the Microbiome in Colon and Rectal Surgery. Antibiotics (Basel) 2024; 13:580. [PMID: 39061262 PMCID: PMC11273680 DOI: 10.3390/antibiotics13070580] [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: 05/15/2024] [Revised: 06/13/2024] [Accepted: 06/21/2024] [Indexed: 07/28/2024] Open
Abstract
Preoperative bowel preparation, through iterations over time, has evolved with the goal of optimizing surgical outcomes after colon and rectal surgery. Although bowel preparation is commonplace in current practice, its precise mechanism of action, particularly its effect on the human gut microbiome, has yet to be fully elucidated. Absent intervention, the gut microbiota is largely stable, yet reacts to dietary influences, tissue injury, and microbiota-specific byproducts of metabolism. The routine use of oral antibiotics and mechanical bowel preparation prior to intestinal surgical procedures may have detrimental effects previously thought to be negligible. Recent evidence highlights the sensitivity of gut microbiota to antibiotics, bowel preparation, and surgery; however, there is a lack of knowledge regarding specific causal pathways that could lead to therapeutic interventions. As our understanding of the complex interactions between the human host and gut microbiota grows, we can explore the role of bowel preparation in specific microbiome alterations to refine perioperative care and improve outcomes. In this review, we outline the current fund of information regarding the impact of surgical bowel preparation and its components on the adult gut microbiome. We also emphasize key questions pertinent to future microbiome research and their implications for patients undergoing colorectal surgery.
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Affiliation(s)
- Lauren Weaver
- Department of Surgery, University of Minnesota, Minneapolis, MN 55455, USA; (L.W.); (A.T.)
| | - Alexander Troester
- Department of Surgery, University of Minnesota, Minneapolis, MN 55455, USA; (L.W.); (A.T.)
| | - Cyrus Jahansouz
- Division of Colon & Rectal Surgery, Department of Surgery, University of Minnesota, 420 Delaware St. SE, MMC 450, Minneapolis, MN 55455, USA
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2
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Paine H, Jones F, Kinross J. Preparing the Bowel (Microbiome) for Surgery: Surgical Bioresilience. Clin Colon Rectal Surg 2023; 36:138-145. [PMID: 36844712 PMCID: PMC9946716 DOI: 10.1055/s-0042-1760675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
The preparation of the bowel for radical surgery is a corner stone of elective colorectal practice. The evidence for this intervention is of variable quality and it is often contradictory, yet there is now a global move toward the adoption of oral antibiotic therapy for the reduction of perioperative infective complications, such as surgical site infections. The gut microbiome is a critical mediator of the systemic inflammatory response to surgical injury, wound healing, and perioperative gut function. The loss of critical microbial symbiotic functions caused by bowel preparation and surgery has an adverse impact on surgical outcomes, yet the mechanisms through which this occurs are poorly defined. In this review, the evidence for bowel preparation strategies is critically appraised in the context of the gut microbiome. The impact of antibiotic therapy on the surgical gut microbiome and the importance of the intestinal "resistome" to surgical recovery is described. Data to support the augmentation of the microbiome through diet, probiotic and symbiotic approaches, as well as fecal transplantation are also appraised. Finally, we propose a novel strategy of bowel preparation defined as " surgical bioresilience " and define areas or prioritization in this emerging field. This describes the optimization of surgical intestinal homeostasis and core surgical exposome-microbiome interactions that regulate the wound immune microenvironment, the systemic inflammatory response to surgical injury, and gut function across the perioperative time course.
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Affiliation(s)
- Heidi Paine
- Division of General Surgery, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Faye Jones
- Division of General Surgery, King Edward VII Hospital, London, United Kingdom
| | - James Kinross
- Division of Colorectal Surgery, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
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Gaidarski III AA, Ferrara M. The Colorectal Anastomosis: A Timeless Challenge. Clin Colon Rectal Surg 2022; 36:11-28. [PMID: 36619283 PMCID: PMC9815911 DOI: 10.1055/s-0042-1756510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Colorectal anastomosis is a sophisticated problem that demands an elaborate discussion and an elegant solution. "Those who forget the past are condemned to repeat it." George Santayana, Life of Reason , 1905.
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Affiliation(s)
| | - Marco Ferrara
- Colon and Rectal Clinic of Orlando, Orlando, Florida,Address for correspondence Marco Ferrara, MD Colon and Rectal Clinic of Orlando110 West Underwood ST, Suite A, Orlando, FL 32806
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Carlini M, Grieco M, Spoletini D, Menditto R, Napoleone V, Brachini G, Mingoli A, Marcellinaro R. Implementation of the gut microbiota prevents anastomotic leaks in laparoscopic colorectal surgery for cancer:the results of the MIRACLe study. Updates Surg 2022; 74:1253-1262. [PMID: 35739383 DOI: 10.1007/s13304-022-01305-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/17/2022] [Indexed: 10/17/2022]
Abstract
The aim of this pilot study was to evaluate the effects of a novel perioperative treatment for the implementation of the gut microbiota, to prevent anastomotic fistula and leakage (AL) in patients undergoing laparoscopic colorectal resections for cancer. A series of 60 patients who underwent elective colorectal surgery at S. Eugenio Hospital (Rome-Italy) between December 1, 2020 and November 30, 2021 and received a novel perioperative preparation following the MIRACLe (Microbiota Implementation to Reduce Anastomotic Colorectal Leaks) protocol (oral antibiotics, mechanical bowel preparation and perioperative probiotics), was compared to a group of 500 patients (control group) operated on between March 2015 and November 30, 2020, who received a standard ERAS protocol. In the MIRACLe Group only 1 anastomotic leak was registered. In this group the incidence of AL was just 1.7% vs. 6.4% in the control group (p = 0.238) and the incidence of surgical site infections (1.7% vs. 3.6%; p = 0.686), reoperations (1.7% vs. 4.2%; p = 0.547) and postoperative mortality (0% vs. 2.2%; p = 0.504) were lower. The postoperative outcomes were also better: the times to first flatus, to first stool and to oral feeding were shorter (1 vs. 2, 2 vs. 3 and 2 vs. 3 days, respectively; p < 0.001). Additionally, the postoperative recovery was faster, with a shorter time to discharge (4 vs. 6 days; p < 0.001). In this pilot study, the MIRACLe protocol appeared to be safe and considerably reduced anastomotic leaks in elective laparoscopic colorectal surgery for cancer, even if not statistically significant, due to the small number of cases.
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Affiliation(s)
- Massimo Carlini
- Department of General Surgery, S. Eugenio Hospital, Piazzale dell'Umanesimo, 10, 00144, Rome, Italy
| | - Michele Grieco
- Department of General Surgery, S. Eugenio Hospital, Piazzale dell'Umanesimo, 10, 00144, Rome, Italy
| | - Domenico Spoletini
- Department of General Surgery, S. Eugenio Hospital, Piazzale dell'Umanesimo, 10, 00144, Rome, Italy
| | - Rosa Menditto
- Department of General Surgery, S. Eugenio Hospital, Piazzale dell'Umanesimo, 10, 00144, Rome, Italy
| | | | - Gioia Brachini
- Emergency Department, Policlinico Umberto I, Sapienza University, Rome, Italy
| | - Andrea Mingoli
- Emergency Department, Policlinico Umberto I, Sapienza University, Rome, Italy
| | - Rosa Marcellinaro
- Department of General Surgery, S. Eugenio Hospital, Piazzale dell'Umanesimo, 10, 00144, Rome, Italy.
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Yu K, Chen Z. Risks of anastomotic leakage in patients with colorectal cancer after operation and how to effectively avoid it. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2021; 46:1031-1040. [PMID: 34707015 PMCID: PMC10930173 DOI: 10.11817/j.issn.1672-7347.2021.200569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Indexed: 11/03/2022]
Abstract
Despite the considerable progress in surgical level and imaging examination methods, anastomotic leakage is still the major complication after intestinal surgery with high incidence rate and mortality rate. Moreover, anastomotic leakage has become one of the serious complications threatening the postoperative life safety, prognosis and quality of life. The occurrence of anastomotic leakage involves the changes of a variety of pathophysiological factors, and is affected by intestinal microbiota, inflammation and immune system. Preoperative intestinal preparation will change the type and number of microbial population in the intestine. Intraoperative anastomotic mode and bleeding volume are also closely related to the occurrence of anastomotic leakage. In addition, the occurrence of anastomotic leakage is associated with local recurrence of colorectal cancer after surgery. Intraoperative protective stoma is confirmed to reduce the incidence of anastomotic leakage. Combined preoperative adjustment of nutritional status and inflammatory factors is important for avoiding anastomotic leakage after surgery.
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Affiliation(s)
- Kexun Yu
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Zihua Chen
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha 410008, China.
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6
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Booth AT, Curran T. Preoperative optimization and enhanced recovery for colorectal surgery. SEMINARS IN COLON AND RECTAL SURGERY 2021. [DOI: 10.1016/j.scrs.2021.100827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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7
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Espin Basany E, Solís-Peña A, Pellino G, Kreisler E, Fraccalvieri D, Muinelo-Lorenzo M, Maseda-Díaz O, García-González JM, Santamaría-Olabarrieta M, Codina-Cazador A, Biondo S. Preoperative oral antibiotics and surgical-site infections in colon surgery (ORALEV): a multicentre, single-blind, pragmatic, randomised controlled trial. Lancet Gastroenterol Hepatol 2020; 5:729-738. [DOI: 10.1016/s2468-1253(20)30075-3] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/02/2020] [Accepted: 03/02/2020] [Indexed: 12/23/2022]
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Spinelli A, Anania G, Arezzo A, Berti S, Bianco F, Bianchi PP, De Giuli M, De Nardi P, de Paolis P, Foppa C, Guerrieri M, Marini P, Persiani R, Piazza D, Poggioli G, Pucciarelli S, D'Ugo D, Renzi A, Selvaggi F, Silecchia G, Montorsi M. Italian multi-society modified Delphi consensus on the definition and management of anastomotic leakage in colorectal surgery. Updates Surg 2020; 72:781-792. [PMID: 32613380 DOI: 10.1007/s13304-020-00837-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 06/21/2020] [Indexed: 02/06/2023]
Abstract
INTRODUCTION The incidence of anastomotic leak (AL) has not decreased over the past decades and some important grey areas remain in its definition, prevention, and management. The aim of this study was to reach a national consensus on the definition of AL and to identify key points to be applied in clinical practice. METHODS A 3-step modified Delphi method was used to establish consensus. Ten representative members of the major Italian surgical scientific societies with proven colorectal expertise were selected after a call to action. After a comprehensive literature search, each expert drew a list of evidence-based statements which were voted in round one by the scientific board. Panel members were asked to mark "totally disagree", "partially agree" or "totally agree" for each statement and provide comments. The same voting method was used for round 2. Round 3 consisted of a final face-to-face meeting. RESULTS Thirty-three statements (clustered into 14 topics) were included in round 1. Following the third voting round, a final list of 16 items was formulated, which encompass the following 9 topics: AL definition, patient- and operative-related risk factors, prevention measures, bowel preparation, surgical technique, intraoperative assessment, early diagnosis, radiological diagnosis and management of specific patterns of AL. The overall response rate was 100% for all items in all the three rounds. CONCLUSIONS This Delphi survey identified items that expert colorectal surgeons agreed were important to be applied in the prevention, diagnosis, and management of AL. This represents the first consensus involving all relevant national scientific societies, defining important and shared concepts in the diagnosis and management of AL.
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Affiliation(s)
- Antonino Spinelli
- Division of Colon and Rectal Surgery, Humanitas Clinical and Research Center IRCCS, Rozzano, Milan, Italy.
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.
| | - Gabriele Anania
- Dipartimento di Scienze Mediche-Università di Ferrara, Azienda Ospedaliero Universitaria S. Anna, Ferrara, Italy
| | - Alberto Arezzo
- Department of Surgical Sciences, University of Torino, Torino, Italy
| | - Stefano Berti
- S.C. Chirurgia Generale, Dipartimento Chirurgico, ASL 5 Spezzino-POLL-Regione Liguria, La Spezia, Italy
| | - Francesco Bianco
- General and Colo-Rectal Surgery Unit, S. Leonardo-ASL Naples 3 Hospital, C.mare di Stabia, Naples, Italy
| | - Paolo Pietro Bianchi
- UOC di Chirurgia Generale e Mini-Invasiva, Dipartimento di Chirurgia Generale e Specialistiche, ASL Toscana Sud-Est. Ospedale Misericordia, Grosseto, Italy
| | - Maurizio De Giuli
- Department of Oncology, Head, Digestive and Surgical Oncology, University of Torino, and San Luigi University Hospital, Orbassano, Italy
| | - Paola De Nardi
- Gastrointestinal Surgery, Scientific Institute San Raffaele Hospital, Milan, Italy
| | | | - Caterina Foppa
- Division of Colon and Rectal Surgery, Humanitas Clinical and Research Center IRCCS, Rozzano, Milan, Italy
| | - Mario Guerrieri
- Clinica Chirurgica Generale e d'urgenza, Università Politecnica delle Marche, Ancona, Italy
| | | | - Roberto Persiani
- Minimally-Invasive Surgical Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University, Rome, Italy
| | - Diego Piazza
- U.O.C. Chirurgia Oncologica, ARNAS Garibaldi, Catania, Italy
| | - Gilberto Poggioli
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Salvatore Pucciarelli
- Dipartimento di Scienze Chirurgiche Oncologiche e Gastroenterologiche-DISCOG, Università di Padova, Padova, Italy
| | - Domenico D'Ugo
- General Surgery Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Catholic University, Rome, Italy
| | - Adolfo Renzi
- Department of General Surgery, Fatebenefratelli Hospital, Naples, Italy
| | - Francesco Selvaggi
- Colorectal Surgery, Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Gianfranco Silecchia
- Deparment of Medico-Surgical Science and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Marco Montorsi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
- Department of Surgery, Humanitas Clinical and Research Center IRCCS, Rozzano, Milan, Italy
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Tong B, Wang M, Yu J, Feng S. Perioperative nursing care of a patient with urogenital sinus malformation who underwent vaginal calculus removal and correction: a case report. J Int Med Res 2020; 48:300060520931319. [PMID: 32552122 PMCID: PMC7303782 DOI: 10.1177/0300060520931319] [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: 11/22/2022] Open
Abstract
Cases of urogenital sinus malformation with a huge calculus are complex and rare.
Improper nursing care of these cases can lead to a series of problems. We report here a
23-year-old married woman who was admitted to hospital because of primary amenorrhea and
failed sexual intercourse for 5 years. Through combined diagnosis and treatment of
radiology, ultrasound, urology, gynecology, and other disciplines, the patient was
diagnosed with urogenital sinus malformation, a vaginal calculus, and primary amenorrhea.
After full preparation, the patient underwent an operation for extraction of the vaginal
calculus, urethroplasty, vaginoplasty, and hysteroscopy. The calculus of the patient was
removed and the vagina was returned to its normal anatomy. Patients with urogenital sinus
malformation and a huge calculus have complex care requirements and experience a
particular state of vulnerability during the diagnostic phase. By establishing good
communication with patients and providing proper perioperative nursing, physiological and
psychological rehabilitation of these patients can be achieved.
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Affiliation(s)
- Baoqin Tong
- Department of Gynaecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Meili Wang
- Department of Gynaecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Jieqiong Yu
- Department of Gynaecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Suwen Feng
- Department of Gynaecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
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10
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Bartolini I, Risaliti M, Ringressi MN, Melli F, Nannini G, Amedei A, Muiesan P, Taddei A. Role of gut microbiota-immunity axis in patients undergoing surgery for colorectal cancer: Focus on short and long-term outcomes. World J Gastroenterol 2020; 26:2498-2513. [PMID: 32523307 PMCID: PMC7265137 DOI: 10.3748/wjg.v26.i20.2498] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/27/2020] [Accepted: 05/13/2020] [Indexed: 02/06/2023] Open
Abstract
Human body is colonized by a huge amount of microorganisms mostly located in the gastrointestinal tract. These dynamic communities, the environment and their metabolites constitute the microbiota. Growing data suggests a causal role of a dysbiotic microbiota in several pathologies, such as metabolic and neurological disorders, immunity dysregulations and cancer, especially the well-studied colorectal cancer development. However, many were preclinical studies and a complete knowledge of the pathogenetic mechanisms in humans is still absent. The gut microbiota can exert direct or indirect effects in different phases of colorectal cancer genesis. For example, Fusobacterium nucleatum promotes cancer through cellular proliferation and some strains of Escherichia coli and Bacteroides fragilis produce genotoxins. However, dysbiosis may also cause a pro-inflammatory state and the stimulation of a Th17 response with IL-17 and IL-22 secretion that have a pro-oncogenic activity, as demonstrated for Fusobacterium nucleatum. Microbiota has a crucial role in several stages of postoperative course; dysbiosis in fact seems related with surgical site infections and Enterococcus faecalis (and other collagenase-producers microbes) are suggested as a cause of anastomotic leak. Consequently, unbalanced presence of some species, together with altered immune response may also have a prognostic role. Microbiota has also a substantial role in effectiveness of chemotherapy, chemoresistance and in the related side effects. In other words, a complete knowledge of the fine pathological mechanisms of gut microbiota may provide a wide range of new diagnostic tools other than therapeutic targets in the light of tailored medicine.
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Affiliation(s)
- Ilenia Bartolini
- Department of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy
| | - Matteo Risaliti
- Department of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy
| | - Maria Novella Ringressi
- Department of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy
| | - Filippo Melli
- Department of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy
| | - Giulia Nannini
- Department of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy
| | - Paolo Muiesan
- Department of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy
| | - Antonio Taddei
- Department of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy
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11
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Nakov R, Segal JP, Settanni CR, Bibbò S, Gasbarrini A, Cammarota G, Ianiro G. Microbiome: what intensivists should know. Minerva Anestesiol 2020; 86:777-785. [PMID: 32368882 DOI: 10.23736/s0375-9393.20.14278-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The standard conditions of critical illness (including sepsis, acute respiratory distress syndrome, and multiorgan failure) cause enormous global mortality and a growing economic burden. Increasing evidence suggests that critical illness may be associated with loss of commensal microbes and overgrowth of potentially pathogenic and inflammatory bacteria. This state could be associated with poor outcomes. Therefore, microbiota-targeted interventions are potentially attractive novel treatment options. Although the precise mechanisms of microbiome-directed treatments such as prebiotics, probiotics, and fecal microbiota transplantation remain to be determined, they can be utilized in the Intensive Care Unit (ICU) setting. The current review aims to offer intensivists an evidenced-based approach on what we currently know about the role of the microbiome in critical illness and how the microbiome could be targeted in the clinical practice to improve ICU-related outcomes.
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Affiliation(s)
- Radislav Nakov
- Department of Gastroenterology, Tsaritsa Yoanna University Hospital, Medical University of Sofia, Sofia, Bulgaria
| | | | - Carlo R Settanni
- Digestive Disease Center, IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Stefano Bibbò
- Digestive Disease Center, IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Antonio Gasbarrini
- Digestive Disease Center, IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Giovanni Cammarota
- Digestive Disease Center, IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Gianluca Ianiro
- Digestive Disease Center, IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy -
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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: 48] [Impact Index Per Article: 12.0] [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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13
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Abstract
Whether to administer purgative cleansing and oral antibiotics before colon surgery as a method to prevent postoperative infections, once standard of care, is now being considered unnecessary with today’s advancements of care. A new study questions the efficacy of this bowel preparation approach with a prospective randomized trial.
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14
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Gershuni VM, Friedman ES. The Microbiome-Host Interaction as a Potential Driver of Anastomotic Leak. Curr Gastroenterol Rep 2019; 21:4. [PMID: 30684121 DOI: 10.1007/s11894-019-0668-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW The goal of this paper is to review current literature on the gut microbiome within the context of host response to surgery and subsequent risk of developing complications, particularly anastomotic leak. We provide background on the relationship between host and gut microbiota with description of the role of the intestinal mucus layer as an important regulator of host health. RECENT FINDINGS Despite improvements in surgical technique and adherence to the tenets of creating a tension-free anastomosis with adequate blood flow, the surgical community has been unable to decrease rates of anastomotic leak using the current paradigm. Rather than adhere to empirical strategies of decontamination, it is imperative to focus on the interaction between the human host and the gut microbiota that live within us. The gut microbiome has been found to play a potential role in development of post-operative complications, including but not limited to anastomotic leak. Evidence suggests that peri-operative interventions may have a role in instigating or mitigating the impact of the gut microbiota via disruption of the protective mucus layer, use of multiple medications, and activation of virulence factors. The microbiome plays a potential role in the development of surgical complications and can be modulated by peri-operative interventions. As such, further research into this relationship is urgently needed.
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Affiliation(s)
- Victoria M Gershuni
- Department of Surgery, Perelman School of Medicine, Hospital of the University of Pennsylvania, 3400 Spruce Street, 4 Maloney, Philadelphia, PA, 19104, USA. .,Division of Gastroenterology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Elliot S Friedman
- Division of Gastroenterology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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15
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Gaines S, Shao C, Hyman N, Alverdy JC. Gut microbiome influences on anastomotic leak and recurrence rates following colorectal cancer surgery. Br J Surg 2018; 105:e131-e141. [PMID: 29341151 DOI: 10.1002/bjs.10760] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 10/10/2017] [Accepted: 10/19/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND The pathogenesis of colorectal cancer recurrence after a curative resection remains poorly understood. A yet-to-be accounted for variable is the composition and function of the microbiome adjacent to the tumour and its influence on the margins of resection following surgery. METHODS PubMed was searched for historical as well as current manuscripts dated between 1970 and 2017 using the following keywords: 'colorectal cancer recurrence', 'microbiome', 'anastomotic leak', 'anastomotic failure' and 'mechanical bowel preparation'. RESULTS There is a substantial and growing body of literature to demonstrate the various mechanisms by which environmental factors act on the microbiome to alter its composition and function with the net result of adversely affecting oncological outcomes following surgery. Some of these environmental factors include diet, antibiotic use, the methods used to prepare the colon for surgery and the physiological stress of the operation itself. CONCLUSION Interrogating the intestinal microbiome using next-generation sequencing technology has the potential to influence cancer outcomes following colonic resection.
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Affiliation(s)
- S Gaines
- Department of Surgery, Pritzker School of Medicine, University of Chicago, 5841 South Maryland Avenue, MC 6090 Chicago, Illinois 60025, USA
| | - C Shao
- Department of Surgery, Pritzker School of Medicine, University of Chicago, 5841 South Maryland Avenue, MC 6090 Chicago, Illinois 60025, USA
| | - N Hyman
- Department of Surgery, Pritzker School of Medicine, University of Chicago, 5841 South Maryland Avenue, MC 6090 Chicago, Illinois 60025, USA
| | - J C Alverdy
- Department of Surgery, Pritzker School of Medicine, University of Chicago, 5841 South Maryland Avenue, MC 6090 Chicago, Illinois 60025, USA
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