Early Diagnosis of Anastomotic Leakage After Colorectal Surgery: Italian ColoRectal Anastomotic Leakage Study Group.
NCT ID: NCT03560180
Last Updated: 2018-06-18
Study Results
Results pending
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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Recruitment Status
UNKNOWN
Total Enrollment
1131 participants
Study Classification
OBSERVATIONAL
Study Start Date
2017-09-04
Study Completion Date
2018-09-30
Brief Summary
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Prospective evaluation of early diagnosis of anastomotic leak after colorectal resection through evaluation of Dutch leakage score, serum C-reactive protein and serum Procalcitonin
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Detailed Description
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BACKGROUND
Anastomotic leakage is a dreaded major complication after colorectal surgery. The overall incidence of anastomotic dehiscence and subsequent leaks is 2 to 7 percent when performed by experienced surgeons. The lowest leak rates are found with ileocolic anastomoses (1 to 3 percent) and the highest occur with coloanal anastomosis (10 to 20 percent). Leaks usually become apparent between five and seven days postoperatively. Almost half of all leaks occur after the patient has been discharged, and up to 12 percent occur after postoperative day 30. Late leaks often present insidiously with low-grade fever, prolonged ileus, and nonspecific symptoms attributable to other postoperative infectious complications. Small, contained leaks present later in the clinical course and may be difficult to distinguish from postoperative abscesses by radiologic imaging, making the diagnosis uncertain and underreported.
There is no uniform definition of an anastomotic dehiscence and leak. In a review of 97 studies, as an example, 56 different definitions of an anastomotic leak were used. The majority of reports define an anastomotic leak using clinical signs, radiographic findings, and intraoperative findings. The clinical signs include: Pain, Fever, Tachycardia, Peritonitis, Feculent drainage, Purulent drainage. The radiographic signs include: Fluid collections, Gas containing collections. The intraoperative findings include: Gross enteric spillage, Anastomotic disruption.
Risk factors for a dehiscence and leak are classified according to the site of the anastomosis (extraperitoneal or intraperitoneal). A prospective review of 1598 patients undergoing 1639 anastomotic procedures for benign or malignant colorectal disease found a significantly increased risk of anastomotic leak with extraperitoneal compared with intraperitoneal anastomoses (6.6 versus 1.5 percent; 2.4 percent overall).
Major risk factors for an extraperitoneal anastomotic leak include: The distance of the anastomosis from the anal verge (Patients with a low anterior resection and an anastomosis within 5 cm from the anal verge are the highest risk group for an anastomotic leak), Anastomotic ischemia, Male gender, Obesity.
Major risk factors for an intraperitoneal anastomotic leak include: American Society of Anesthesiologists (ASA) score Grade III to V, Emergent surgery, Prolonged operative time, Hand-sewn ileocolic anastomosis.
Controversial, inconclusive, or pertinent negative associations between the following variables and an anastomotic leak have been reported: Neoadjuvant radiation therapy, Drains, Protective stoma, Hand-sewn colorectal anastomosis, Laparoscopic procedure, Mechanical bowel preparation, Nutritional status, Perioperative corticosteroids.
Early diagnosis is crucial to treat patients limiting the related mortality. For this reason several clinical items were proposed in literature to detect anastomotic leakage as soon as possible: fever, pain, tachycardia, peritoneal, purulent or faecal drain, and dynamic ileus. Moreover, also laboratory markers were proposed, such as leukocytosis, serum procalcitonin (PCT) and C-Reactive Protein (CRP). Finally, in 2009 den Dulk et al. proposed a leakage score (DUtch LeaKage, DULK), that consider several items (fever, heart rate, respiratory rate, urinary production, mental status, clinical conditions, signs of ileus, gastric retention, fascial dehiscence, abdominal pain, wound pain, leukocytosis, CRP, increase of urea or creatinine and nutrition status), to give a score, based on which is chosen a therapeutic strategy.
Therefore, we planned this study to prospectively evaluate anastomotic leakage rate after colorectal resections, trying to give a definite answer to the need for clear risk factors, and testing the diagnostic yeald of DULK score and laboratory markers.
METHODS Prospective enrollment from September 2017 to September 2018 in 19 Italian surgical centers. All patients undergoing elective colorectal surgery with anastomosis will be included in a prospective database after having provided a written informed consent. A total of 1,131 patients is expected based on a mean of 55 cases/year per center.
Outcome measures
1. Preoperative risk factors of anastomotic leakage (age, gender, obesity, state of nutrition, diabetes, cardiovascular, renal failure, inflammatory bowel disease, ASA class I-II vs III)
2. Operative parameters (approach, procedure, anastomotic technique, time of operation, pTNM stage)
3. Leukocyte count, serum CRP, serum procalcitonin and DULK score assessment in 2nd and 3rd postoperative day. Minor and major complications according to Clavien-Dindo classification
4. Anastomotic leakage rate
5. Morbidity-Mortality rates
6. Length of postoperative hospital stay
Recorded data and follow-up Potential patient-specific and intraoperative risk factors will be recorded: gender, body mass index, nutritional status according to the Mini Nutritional Assessment short-form, surgical indication (cancer, polyps, chronic inflammatory bowel disease, diverticular disease), preoperative albuminemia, use of steroids, renal failure and dialysis, preoperative leukocyte count, CRP, PCT cardiovascular or respiratory disease, American Society of Anesthesia score, bowel preparation (decision made by operating surgeon), laparoscopy or laparotomy, level of anastomosis and technique (mechanical or hand-sewn, intra- or extra-corporeal), operative time, presence of drainage, surgeon and perioperative blood transfusion(s). During the postoperative period, patients will be examined by the attending surgeon daily. Fever (central temperature \> 38 °C), pulse, abdominal signs, bowel movements, volume and aspect of drainage (if present) will be recorded daily. Leucocyte count, CRP, PCT and Dulk score will be measured in the evening before the operation (in addition to albuminemia) and on postoperative days 2, 3, and 6 (optional). The attending surgeon will make any decision for complementary exams and imaging according to his own criteria. The rate of any complication will be calculated and graded according to Clavien-Dindo including all leaks (independently of clinical significance), wound infection, pneumonia, central line infection, urinary tract infection. Urinary tract infection will be diagnosed on the basis of positive urine culture with bacterial count. Central line infection will be diagnosed on the basis of positive blood culture. Superficial and deep incisional infections will be diagnosed according to the definitions of the Centers for Disease Control and Prevention and a culture will be performed. Pneumonia will be diagnosed on the basis of clinical symptoms, and physical and radiological examinations. The surgeons will be blinded to the results of the CRP and PCT assays. Patients will be followed-up in the outpatient clinic up to 6 weeks after discharge from the hospital.
Main outcome is anastomotic dehiscence (intended as any deviation from the planned postoperative course related to the anastomosis, or presence of pus or enteric contents within the drains, presence of abdominal or pelvic collection in the area of the anastomosis on postoperative CT scan, performed at the discretion of the attending surgeon, leakage of contrast through the anastomosis during enema or evident anastomotic dehiscence at reoperation for postoperative peritonitis). Thus, all detected leaks will be considered independently of clinical significance. No imaging will be performed routinely in order to search for leakage.
Secondary outcomes are morbidity and mortality rates, and postoperative length of stay. All data will be prospectively recorded into CRF and transmitted to the coordinating center on a monthly basis. Thereafter, all data will be incorporated into a spreadsheet (MS Excel), checking for any discrepancy, that will be addressed and solved through strict cooperation between chief investigator, data manager and participating center.
Statistical Analysis Quantitative values will be expressed as mean ± standard deviation, median and range; categorical data with percentage frequencies. Mean values of duration of stay will be compared according to the presence or absence of fistulas using Student's two-sided t test (allowing for heterogeneity of variances) or with a non-parametric Mann-Whitney test. Mean values of DULK score, CRP and PCT levels will also be compared using Student's two-sided t test (allowing for heterogeneity of variances) or with a non-parametric Mann-Whitney test. Both univariate analysis and multivariate analysis will be performed to assess risk factors for leakage and overall complications. The odds ratio (OR) will be presented followed by its 95% confidence interval (95% CI). Areas under the receiver-operating characteristics (ROC) curve will be calculated. For all statistical tests the significant level is fixed at p \< .05. Multivariate analysis will be performed using logistic models. Statistical analyses will be carried out using STATA software (Stata Corp. College Station, Texas, USA).
Sample size Considering that the ASA grade (I and II vs. III) is mostly significant among risk factors for anastomotic dehiscence, an estimation of the OR for anastomotic dehiscence and ASA grade is equal to 5.6; assuming a confidence interval for the estimation of the OR at 95% and a maximum error equal to 0.04, the required sample size is n=1,062 (about 885 and 177 cases expected in ASA I-II and ASA III, respectively).
Anastomotic leakage is a dreaded major complication after colorectal surgery. The overall incidence of anastomotic dehiscence and subsequent leaks is 2 to 7 percent when performed by experienced surgeons. The lowest leak rates are found with ileocolic anastomoses (1 to 3 percent) and the highest occur with coloanal anastomosis (10 to 20 percent). Leaks usually become apparent between five and seven days postoperatively. Almost half of all leaks occur after the patient has been discharged, and up to 12 percent occur after postoperative day 30. Late leaks often present insidiously with low-grade fever, prolonged ileus, and nonspecific symptoms attributable to other postoperative infectious complications. Small, contained leaks present later in the clinical course and may be difficult to distinguish from postoperative abscesses by radiologic imaging, making the diagnosis uncertain and underreported.
There is no uniform definition of an anastomotic dehiscence and leak. In a review of 97 studies, as an example, 56 different definitions of an anastomotic leak were used. The majority of reports define an anastomotic leak using clinical signs, radiographic findings, and intraoperative findings. The clinical signs include: Pain, Fever, Tachycardia, Peritonitis, Feculent drainage, Purulent drainage. The radiographic signs include: Fluid collections, Gas containing collections. The intraoperative findings include: Gross enteric spillage, Anastomotic disruption.
Risk factors for a dehiscence and leak are classified according to the site of the anastomosis (extraperitoneal or intraperitoneal). A prospective review of 1598 patients undergoing 1639 anastomotic procedures for benign or malignant colorectal disease found a significantly increased risk of anastomotic leak with extraperitoneal compared with intraperitoneal anastomoses (6.6 versus 1.5 percent; 2.4 percent overall).
Major risk factors for an extraperitoneal anastomotic leak include: The distance of the anastomosis from the anal verge (Patients with a low anterior resection and an anastomosis within 5 cm from the anal verge are the highest risk group for an anastomotic leak), Anastomotic ischemia, Male gender, Obesity.
Major risk factors for an intraperitoneal anastomotic leak include: American Society of Anesthesiologists (ASA) score Grade III to V, Emergent surgery, Prolonged operative time, Hand-sewn ileocolic anastomosis.
Controversial, inconclusive, or pertinent negative associations between the following variables and an anastomotic leak have been reported: Neoadjuvant radiation therapy, Drains, Protective stoma, Hand-sewn colorectal anastomosis, Laparoscopic procedure, Mechanical bowel preparation, Nutritional status, Perioperative corticosteroids.
Early diagnosis is crucial to treat patients limiting the related mortality. For this reason several clinical items were proposed in literature to detect anastomotic leakage as soon as possible: fever, pain, tachycardia, peritoneal, purulent or faecal drain, and dynamic ileus. Moreover, also laboratory markers were proposed, such as leukocytosis, serum procalcitonin (PCT) and C-Reactive Protein (CRP). Finally, in 2009 den Dulk et al. proposed a leakage score (DUtch LeaKage, DULK), that consider several items (fever, heart rate, respiratory rate, urinary production, mental status, clinical conditions, signs of ileus, gastric retention, fascial dehiscence, abdominal pain, wound pain, leukocytosis, CRP, increase of urea or creatinine and nutrition status), to give a score, based on which is chosen a therapeutic strategy.
Therefore, we planned this study to prospectively evaluate anastomotic leakage rate after colorectal resections, trying to give a definite answer to the need for clear risk factors, and testing the diagnostic yeald of DULK score and laboratory markers.
METHODS Prospective enrollment from September 2017 to September 2018 in 19 Italian surgical centers. All patients undergoing elective colorectal surgery with anastomosis will be included in a prospective database after having provided a written informed consent. A total of 1,131 patients is expected based on a mean of 55 cases/year per center.
Outcome measures
1. Preoperative risk factors of anastomotic leakage (age, gender, obesity, state of nutrition, diabetes, cardiovascular, renal failure, inflammatory bowel disease, ASA class I-II vs III)
2. Operative parameters (approach, procedure, anastomotic technique, time of operation, pTNM stage)
3. Leukocyte count, serum CRP, serum procalcitonin and DULK score assessment in 2nd and 3rd postoperative day. Minor and major complications according to Clavien-Dindo classification
4. Anastomotic leakage rate
5. Morbidity-Mortality rates
6. Length of postoperative hospital stay
Recorded data and follow-up Potential patient-specific and intraoperative risk factors will be recorded: gender, body mass index, nutritional status according to the Mini Nutritional Assessment short-form, surgical indication (cancer, polyps, chronic inflammatory bowel disease, diverticular disease), preoperative albuminemia, use of steroids, renal failure and dialysis, preoperative leukocyte count, CRP, PCT cardiovascular or respiratory disease, American Society of Anesthesia score, bowel preparation (decision made by operating surgeon), laparoscopy or laparotomy, level of anastomosis and technique (mechanical or hand-sewn, intra- or extra-corporeal), operative time, presence of drainage, surgeon and perioperative blood transfusion(s). During the postoperative period, patients will be examined by the attending surgeon daily. Fever (central temperature \> 38 °C), pulse, abdominal signs, bowel movements, volume and aspect of drainage (if present) will be recorded daily. Leucocyte count, CRP, PCT and Dulk score will be measured in the evening before the operation (in addition to albuminemia) and on postoperative days 2, 3, and 6 (optional). The attending surgeon will make any decision for complementary exams and imaging according to his own criteria. The rate of any complication will be calculated and graded according to Clavien-Dindo including all leaks (independently of clinical significance), wound infection, pneumonia, central line infection, urinary tract infection. Urinary tract infection will be diagnosed on the basis of positive urine culture with bacterial count. Central line infection will be diagnosed on the basis of positive blood culture. Superficial and deep incisional infections will be diagnosed according to the definitions of the Centers for Disease Control and Prevention and a culture will be performed. Pneumonia will be diagnosed on the basis of clinical symptoms, and physical and radiological examinations. The surgeons will be blinded to the results of the CRP and PCT assays. Patients will be followed-up in the outpatient clinic up to 6 weeks after discharge from the hospital.
Main outcome is anastomotic dehiscence (intended as any deviation from the planned postoperative course related to the anastomosis, or presence of pus or enteric contents within the drains, presence of abdominal or pelvic collection in the area of the anastomosis on postoperative CT scan, performed at the discretion of the attending surgeon, leakage of contrast through the anastomosis during enema or evident anastomotic dehiscence at reoperation for postoperative peritonitis). Thus, all detected leaks will be considered independently of clinical significance. No imaging will be performed routinely in order to search for leakage.
Secondary outcomes are morbidity and mortality rates, and postoperative length of stay. All data will be prospectively recorded into CRF and transmitted to the coordinating center on a monthly basis. Thereafter, all data will be incorporated into a spreadsheet (MS Excel), checking for any discrepancy, that will be addressed and solved through strict cooperation between chief investigator, data manager and participating center.
Statistical Analysis Quantitative values will be expressed as mean ± standard deviation, median and range; categorical data with percentage frequencies. Mean values of duration of stay will be compared according to the presence or absence of fistulas using Student's two-sided t test (allowing for heterogeneity of variances) or with a non-parametric Mann-Whitney test. Mean values of DULK score, CRP and PCT levels will also be compared using Student's two-sided t test (allowing for heterogeneity of variances) or with a non-parametric Mann-Whitney test. Both univariate analysis and multivariate analysis will be performed to assess risk factors for leakage and overall complications. The odds ratio (OR) will be presented followed by its 95% confidence interval (95% CI). Areas under the receiver-operating characteristics (ROC) curve will be calculated. For all statistical tests the significant level is fixed at p \< .05. Multivariate analysis will be performed using logistic models. Statistical analyses will be carried out using STATA software (Stata Corp. College Station, Texas, USA).
Sample size Considering that the ASA grade (I and II vs. III) is mostly significant among risk factors for anastomotic dehiscence, an estimation of the OR for anastomotic dehiscence and ASA grade is equal to 5.6; assuming a confidence interval for the estimation of the OR at 95% and a maximum error equal to 0.04, the required sample size is n=1,062 (about 885 and 177 cases expected in ASA I-II and ASA III, respectively).
Conditions
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Anastomotic Leak
Colorectal Surgery
Study Design
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Observational Model Type
COHORT
Study Time Perspective
PROSPECTIVE
Interventions
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Dutch score
leakage score (DUtch LeaKage, DULK), that consider several items (fever, heart rate, respiratory rate, urinary production, mental status, clinical conditions, signs of ileus, gastric retention, fascial dehiscence, abdominal pain, wound pain, leukocytosis, CRP, increase of urea or creatinine and nutrition status), to give a score
Intervention Type
DIAGNOSTIC_TEST
Serum C-reactive Protein
see study protocol
Intervention Type
DIAGNOSTIC_TEST
serum Procalcitonin
see study protocol
Intervention Type
DIAGNOSTIC_TEST
Other Intervention Names
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Dulk score, Anastomotic Leakage Clinical score
Eligibility Criteria
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Inclusion Criteria
1. Patients submitted to laparoscopic/robotic/open/converted ileo-colo-rectal resection with anastomosis (both intra- and/or extra-corporeal), including planned Hartmann's reversals.
2. American Society of Anesthesiologists' (ASA) class I, II or III
3. Elective surgery
4. Patients' written acceptance to be included in the study.
2. American Society of Anesthesiologists' (ASA) class I, II or III
3. Elective surgery
4. Patients' written acceptance to be included in the study.
Exclusion Criteria
1. American Society of Anesthesiologists' (ASA) class IV-V
2. Patients with stoma before or at operation
3. Simple stoma closure
4. Transanal procedure
5. Pregnancy
6. Ongoing infection prior to surgery
7. Hyperthermic intraperitoneal chemotherapy for carcinomatosis
2. Patients with stoma before or at operation
3. Simple stoma closure
4. Transanal procedure
5. Pregnancy
6. Ongoing infection prior to surgery
7. Hyperthermic intraperitoneal chemotherapy for carcinomatosis
Eligible Sex
ALL
Accepts Healthy Volunteers
No
Sponsors
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Ospedale C & G Mazzoni
OTHER
Sponsor Role
lead
Responsible Party
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Marco Catarci
Director, General Surgery Unit
Responsibility Role
PRINCIPAL_INVESTIGATOR
Principal Investigators
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Marco Catarci, MD
Role: STUDY_DIRECTOR
ASUR Marche
Locations
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UOC Chirurgia Generale - Jesi - AV5 - ASUR Marche
Iesi, AN, Italy
Site Status
RECRUITING
UOC Chirurgia Generale - Ospedale Montichiari (BS) - ASST Spedali Civili di Brescia
Brescia, BS, Italy
Site Status
RECRUITING
Clinica Chirurgica, Università di Brescia - UOC Chirurgia Generale 3, ASST Spedali Civili di Brescia - Brescia
Brescia, BS, Italy
Site Status
RECRUITING
S.C. Chirurgia Generale e Oncologica - Azienda Ospedaliera S. Croce e Carle - Cuneo, Italia
Cuneo, CN, Italy
Site Status
RECRUITING
UOC di Chirurgia Addominale IRCCS Casa Sollievo della Sofferenza - San Giovanni Rotondo - Foggia
San Giovanni Rotondo, FG, Italy
Site Status
RECRUITING
UOC Chirurgia Generale e Oncologica - Ospedale S. Stefano - Prato (FI) - ASL Toscana Centro
Prato, FI, Italy
Site Status
RECRUITING
UOC Chirurgia Generale ad Indirizzo Oncologico - IRCCS San Martino IST - Genova
Genova, GE, Italy
Site Status
RECRUITING
SOC Chirurgia Generale, Oncologica e Vascolare - Azienda Ospedaliera Marche Nord - Pesaro
Pesaro, PU, Italy
Site Status
RECRUITING
UOC Chirurgia Generale - Ospedale "Regina Apostolorum" Albano Laziale (RM)
Albano Laziale, RM, Italy
Site Status
RECRUITING
U.O. di Chirurgia Generale e d'Urgenza - Policlinico Casilino - Roma
Roma, RM, Italy
Site Status
RECRUITING
UOC Chirurgia Generale e Oncologica - Ospedale San Filippo Neri - ASL Roma1
Roma, RM, Italy
Site Status
RECRUITING
UOS Chirurgia Geriatrica - Policlinico Campus BioMedico - Roma
Roma, RM, Italy
Site Status
RECRUITING
UOC Chirurgia Generale, Laparoscopica, Toracica -Ospedale "Ceccarini" di Riccione - Area Vasta Romagna
Riccione, RN, Italy
Site Status
RECRUITING
UOC Chirurgia Generale 1 - Ospedale S. Chiara - APSS Trento
Trento, TN, Italy
Site Status
RECRUITING
UOC Chirurgia Generale - Ospedale "E. Agnelli" di Pinerolo (TO) - ASL TO3
Pinerolo, TO, Italy
Site Status
RECRUITING
UOC Chirurgia Generale - Ospedale Sacro Cuore Don Calabria Negrar Verona
Negrar, VR, Italy
Site Status
RECRUITING
UOC Chirurgia Generale Oncologica - Azienda Ospedaliera Belcolle - Viterbo
Viterbo, VT, Italy
Site Status
RECRUITING
SOC Chirurgia Colorettale - Istituto Nazionale dei Tumori - IRCCS Fondazione "G.Pascale" - Napoli
Napoli, , Italy
Site Status
RECRUITING
Countries
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Italy
Central Contacts
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Facility Contacts
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References
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Slieker JC, Komen N, Mannaerts GH, Karsten TM, Willemsen P, Murawska M, Jeekel J, Lange JF. Long-term and perioperative corticosteroids in anastomotic leakage: a prospective study of 259 left-sided colorectal anastomoses. Arch Surg. 2012 May;147(5):447-52. doi: 10.1001/archsurg.2011.1690.
Reference Type
BACKGROUND
Kingham TP, Pachter HL. Colonic anastomotic leak: risk factors, diagnosis, and treatment. J Am Coll Surg. 2009 Feb;208(2):269-78. doi: 10.1016/j.jamcollsurg.2008.10.015. Epub 2008 Dec 4. No abstract available.
Reference Type
BACKGROUND
Hyman N, Manchester TL, Osler T, Burns B, Cataldo PA. Anastomotic leaks after intestinal anastomosis: it's later than you think. Ann Surg. 2007 Feb;245(2):254-8. doi: 10.1097/01.sla.0000225083.27182.85.
Reference Type
BACKGROUND
Park JS, Choi GS, Kim SH, Kim HR, Kim NK, Lee KY, Kang SB, Kim JY, Lee KY, Kim BC, Bae BN, Son GM, Lee SI, Kang H. Multicenter analysis of risk factors for anastomotic leakage after laparoscopic rectal cancer excision: the Korean laparoscopic colorectal surgery study group. Ann Surg. 2013 Apr;257(4):665-71. doi: 10.1097/SLA.0b013e31827b8ed9.
Reference Type
BACKGROUND
Bruce J, Krukowski ZH, Al-Khairy G, Russell EM, Park KG. Systematic review of the definition and measurement of anastomotic leak after gastrointestinal surgery. Br J Surg. 2001 Sep;88(9):1157-68. doi: 10.1046/j.0007-1323.2001.01829.x.
Reference Type
BACKGROUND
Lipska MA, Bissett IP, Parry BR, Merrie AE. Anastomotic leakage after lower gastrointestinal anastomosis: men are at a higher risk. ANZ J Surg. 2006 Jul;76(7):579-85. doi: 10.1111/j.1445-2197.2006.03780.x.
Reference Type
BACKGROUND
Platell C, Barwood N, Dorfmann G, Makin G. The incidence of anastomotic leaks in patients undergoing colorectal surgery. Colorectal Dis. 2007 Jan;9(1):71-9. doi: 10.1111/j.1463-1318.2006.01002.x.
Reference Type
BACKGROUND
Giaccaglia V, Salvi PF, Cunsolo GV, Sparagna A, Antonelli MS, Nigri G, Balducci G, Ziparo V. Procalcitonin, as an early biomarker of colorectal anastomotic leak, facilitates enhanced recovery after surgery. J Crit Care. 2014 Aug;29(4):528-32. doi: 10.1016/j.jcrc.2014.03.036. Epub 2014 Apr 5.
Reference Type
BACKGROUND
Ortega-Deballon P, Radais F, Facy O, d'Athis P, Masson D, Charles PE, Cheynel N, Favre JP, Rat P. C-reactive protein is an early predictor of septic complications after elective colorectal surgery. World J Surg. 2010 Apr;34(4):808-14. doi: 10.1007/s00268-009-0367-x.
Reference Type
BACKGROUND
Oberhofer D, Juras J, Pavicic AM, Rancic Zuric I, Rumenjak V. Comparison of C-reactive protein and procalcitonin as predictors of postoperative infectious complications after elective colorectal surgery. Croat Med J. 2012 Dec;53(6):612-9. doi: 10.3325/cmj.2012.53.612.
Reference Type
BACKGROUND
den Dulk M, Noter SL, Hendriks ER, Brouwers MA, van der Vlies CH, Oostenbroek RJ, Menon AG, Steup WH, van de Velde CJ. Improved diagnosis and treatment of anastomotic leakage after colorectal surgery. Eur J Surg Oncol. 2009 Apr;35(4):420-6. doi: 10.1016/j.ejso.2008.04.009. Epub 2008 Jun 27.
Reference Type
BACKGROUND
Dindo D, Demartines N, Clavien PA. Classification of surgical complications: a new proposal with evaluation in a cohort of 6336 patients and results of a survey. Ann Surg. 2004 Aug;240(2):205-13. doi: 10.1097/01.sla.0000133083.54934.ae.
Reference Type
BACKGROUND
Clavien PA, Barkun J, de Oliveira ML, Vauthey JN, Dindo D, Schulick RD, de Santibanes E, Pekolj J, Slankamenac K, Bassi C, Graf R, Vonlanthen R, Padbury R, Cameron JL, Makuuchi M. The Clavien-Dindo classification of surgical complications: five-year experience. Ann Surg. 2009 Aug;250(2):187-96. doi: 10.1097/SLA.0b013e3181b13ca2.
Reference Type
BACKGROUND
Kaiser MJ, Bauer JM, Ramsch C, Uter W, Guigoz Y, Cederholm T, Thomas DR, Anthony P, Charlton KE, Maggio M, Tsai AC, Grathwohl D, Vellas B, Sieber CC; MNA-International Group. Validation of the Mini Nutritional Assessment short-form (MNA-SF): a practical tool for identification of nutritional status. J Nutr Health Aging. 2009 Nov;13(9):782-8. doi: 10.1007/s12603-009-0214-7.
Reference Type
BACKGROUND
Skipper A, Ferguson M, Thompson K, Castellanos VH, Porcari J. Nutrition screening tools: an analysis of the evidence. JPEN J Parenter Enteral Nutr. 2012 May;36(3):292-8. doi: 10.1177/0148607111414023. Epub 2011 Nov 1.
Reference Type
BACKGROUND
Horan TC, Gaynes RP, Martone WJ, Jarvis WR, Emori TG. CDC definitions of nosocomial surgical site infections, 1992: a modification of CDC definitions of surgical wound infections. Infect Control Hosp Epidemiol. 1992 Oct;13(10):606-8. No abstract available.
Reference Type
BACKGROUND
Italian ColoRectal Anastomotic Leakage (iCral) study group; Borghi F, Migliore M, Cianflocca D, Ruffo G, Patriti A, Delrio P, Scatizzi M, Mancini S, Garulli G, Lucchi A, Carrara A, Pirozzi F, Scabini S, Liverani A, Baiocchi G, Campagnacci R, Muratore A, Longo G, Caricato M, Macarone Palmieri R, Vettoretto N, Ciano P, Benedetti M, Bertocchi E, Ceccaroni M, Pace U, Pandolfini L, Sagnotta A, Pirrera B, Alagna V, Martorelli G, Tirone G, Motter M, Sciuto A, Martino A, Scarinci A, Molfino S, Maurizi A, Marsanic P, Tomassini F, Santoni S, Capolupo GT, Amodio P, Arici E, Cicconi S, Marziali I, Guercioni G, Catarci M. Management and 1-year outcomes of anastomotic leakage after elective colorectal surgery. Int J Colorectal Dis. 2021 May;36(5):929-939. doi: 10.1007/s00384-020-03777-7. Epub 2020 Oct 29.
Reference Type
DERIVED
Italian ColoRectal Anastomotic Leakage (iCral) study group. Risk factors for adverse events after elective colorectal surgery: beware of blood transfusions. Updates Surg. 2020 Sep;72(3):811-819. doi: 10.1007/s13304-020-00753-2. Epub 2020 May 12.
Reference Type
DERIVED
Italian ColoRectal Anastomotic Leakage (iCral) Study Group. Anastomotic leakage after elective colorectal surgery: a prospective multicentre observational study on use of the Dutch leakage score, serum procalcitonin and serum C-reactive protein for diagnosis. BJS Open. 2020 Jun;4(3):499-507. doi: 10.1002/bjs5.50269. Epub 2020 Mar 5.
Reference Type
DERIVED
Benedetti M, Ciano P, Pergolini I, Ciotti S, Guercioni G, Ruffo G, Borghi F, Patriti A, Del Rio P, Scatizzi M, Mancini S, Garulli G, Carrara A, Pirozzi F, Scabini S, Liverani A, Baiocchi G, Campagnacci R, Muratore A, Longo G, Caricato M, Macarone Palmieri R, Vettoretto N, Ceccaroni M, Guadagni S, Bertocchi E, Cianflocca D, Lambertini M, Pace U, Baraghini M, Pandolfini L, Angeloni R, Lucchi A, Martorelli G, Tirone G, Motter M, Sciuto A, Martino A, Luzzi AP, Di Cesare T, Molfino S, Maurizi A, Marsanic P, Tomassini F, Santoni S, Capolupo GT, Amodio P, Arici E, Clementi M, Ruggeri B, Catarci M. Early diagnosis of anastomotic leakage after colorectal surgery by the Dutch leakage score, serum procalcitonin and serum C-reactive protein: study protocol of a prospective multicentre observational study by the Italian ColoRectal Anastomotic Leakage (iC. G Chir. 2019 Jan-Feb;40(1):20-25.
Reference Type
DERIVED
Italian ColoRectal Anastomotic Leakage (iCral) study group. Colorectal surgery in Italy: a snapshot from the iCral study group. Updates Surg. 2019 Jun;71(2):339-347. doi: 10.1007/s13304-018-00612-1. Epub 2019 Feb 11.
Reference Type
DERIVED
Provided Documents
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Document Type: Study Protocol
Other Identifiers
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01/2017
Identifier Type: -
Identifier Source: org_study_id
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