Impact of Preoperative Chemotherapy Features on Patient Outcomes after Hepatectomy for Initially Unresectable Colorectal Cancer Liver Metastases: A LiverMetSurvey Analysis.

Background: Prognostic factors have been extensively reported after resection of colorectal liver metastases (CLM); however, specific analyses of the impact of preoperative systemic anticancer therapy (PO-SACT) features on outcomes is lacking. Methods: For this real-world evidence study, we used prospectively collected data within the international surgical LiverMetSurvey database from all patients with initially-irresectable CLM. The main outcome was Overall Survival (OS) after surgery. Disease-free (DFS) and hepatic-specific relapse-free survival (HS-RFS) were secondary outcomes. PO-SACT features included duration (cumulative number of cycles), choice of the cytotoxic backbone (oxaliplatin- or irinotecan-based), fluoropyrimidine (infusional or oral) and addition or not of targeted monoclonal antibodies (anti-EGFR or anti-VEGF). Results: A total of 2793 patients in the database had received PO-SACT for initially irresectable diseases. Short (<7 or <13 cycles in 1st or 2nd line) PO-SACT duration was independently associated with longer OS (HR: 0.85 p = 0.046), DFS (HR: 0.81; p = 0.016) and HS-RFS (HR: 0.80; p = 0.05). All other PO-SACT features yielded basically comparable results. Conclusions: In this international cohort, provided that PO-SACT allowed conversion to resectability in initially irresectable CLM, surgery performed as soon as technically feasible resulted in the best outcomes. When resection was achieved, our findings indicate that the choice of PO-SACT regimen had a marginal if any, impact on outcomes.

Stratification of Major Hepatectomies According to Their Outcome: Analysis of 2212 Consecutive Open Resections in Patients Without Cirrhosis.

OBJECTIVE: To stratify major hepatectomies (MajHs) according to their outcomes. SUMMARY OF BACKGROUND DATA: MajHs are associated with non-negligible operative risks, but they include a wide range of procedures. Detailed depiction of the outcomes of different MajHs is the basis for a new classification of liver resections. METHODS: We retrospectively considered patients that underwent hepatectomy in 17 high-volume centers. Patients with an associated digestive/biliary resection were excluded. We analyzed open MajHs in non-cirrhotic patients. MajHs were classified according to the Brisbane nomenclature. Right hepatectomies (RHs) were reference standards. Outcomes were adjusted for potential confounders, including indication, liver function, preoperative portal vein embolization, and enrolling center. RESULTS: We analyzed a series of 2212 patients. In comparison with RH, left hepatectomy had lower mortality [0.6% vs 2.2%, odds ratio (OR) = 0.25], severe morbidity (11.7% vs 14.4%, OR = 0.62), and liver failure rates (2.1% vs 11.6%, OR = 0.16). Left hepatectomy+Sg1 and mesohepatectomy+/-Sg1 had outcomes similar to RH, except for higher bile leak rate (31.3% and 13.5% vs 6.7%, OR = 4.36 and OR = 2.29). RH + Sg1 had slightly worse outcomes than RH. Right and left trisectionectomies had higher mortality (5.0% and 7.3% vs 2.2%, OR = 2.07 and OR = 2.71) and liver failure rates than RH (19.0% and 22.0% vs 11.6%, OR = 2.03 and OR = 2.21). Left trisectionectomy had even higher severe morbidity (25.6% vs 14.4%, OR = 2.07) and bile leak rates (14.6% vs 6.7%, OR = 2.31). CONCLUSIONS: The term "major hepatectomy" includes resections having heterogeneous outcome. Different MajHs can be stratified according to their mortality, severe morbidity, liver failure, and bile leak rates.

Clube Português do Pâncreas Recommendations for Chronic Pancreatitis: Medical, Endoscopic, and Surgical Treatment (Part II).

Chronic pancreatitis (CP) is a complex disease that should be treated by experienced teams of gastroenterologists, radiologists, surgeons, and nutritionists in a multidisciplinary environment. Medical treatment includes lifestyle modification, nutrition, exocrine and endocrine pancreatic insufficiency correction, and pain management. Up to 60% of patients will ultimately require some type of endoscopic or surgical intervention for treatment. However, regardless of the modality, they are often ineffective unless smoking and alcohol cessation is achieved. Surgery retains a major role in the treatment of CP patients with intractable chronic pain or suspected pancreatic mass. For other complications like biliary or gastroduodenal obstruction, pseudocyst drainage can be performed endoscopically. The recommendations for CP were developed by Clube Português do Pâncreas (CPP), based on literature review to answer predefined topics, subsequently discussed and approved by all members of CPP. Recommendations are separated in two parts: "chronic pancreatitis etiology, natural history, and diagnosis," and "chronic pancreatitis medical, endoscopic, and surgical treatment." This abstract pertains to part II.

Minor Hepatectomies: Focusing a Blurred Picture: Analysis of the Outcome of 4471 Open Resections in Patients Without Cirrhosis.

OBJECTIVE: To elucidate minor hepatectomy (MiH) outcomes. SUMMARY BACKGROUND DATA: Liver surgery has moved toward a parenchyma-sparing approach, favoring MiHs over major resections. MiHs encompass a wide range of procedures. METHODS: We retrospectively evaluated consecutive patients who underwent open liver resections in 17 high-volume centers. EXCLUSION CRITERIA: cirrhosis and associated digestive/biliary resections. Resections were classified as (Brisbane nomenclature): limited resections (LR); (mono)segmentectomies/bisegmentectomies (Segm/Bisegm); right anterior and right posterior sectionectomies (RightAnteriorSect/RightPosteriorSect). Additionally, we defined: complex LRs (ComplexLR = LRs with exposed vessels); postero-superior segmentectomies (PosteroSuperiorSegm = segment (Sg)7, Sg8, and Sg7+Sg8 segmentectomies); and complex core hepatectomies (ComplexCoreHeps = Sg1 segmentectomies and combined resections of Sg4s+Sg8+Sg1). Left lateral sectionectomies (LLSs, n = 442) and right hepatectomies (RHs, n = 1042) were reference standards. Outcomes were adjusted for potential confounders. RESULTS: Four thousand four hundred seventy-one MiHs were analyzed. Compared with RHs, MiHs had lower 90-day mortality (0.5%/2.2%), severe morbidity (8.6%/14.4%), and liver failure rates (2.4%/11.6%, P < 0.001), but similar bile leak rates. LR and LLS had similar outcomes. ComplexLR and Segm/Bisegm of anterolateral segments had higher bile leak rates than LLS rates (OR = 2.35 and OR = 3.24), but similar severe morbidity rates. ComplexCoreHeps had higher bile leak rates than RH rates (OR = 1.94); the severe morbidity rate approached that of RH. PosteroSuperiorSegm, RightAnteriorSect, and RightPosteriorSect had severe morbidity and bile leak rates similar to RH rates. MiHs had low liver failure rates, except RightAnteriorSect (vs LLS OR = 4.02). CONCLUSIONS: MiHs had heterogeneous outcomes. Mortality was low, but MiHs could be stratified according to severe morbidity, bile leak, and liver failure rates. Some MiHs had postoperative outcomes similar to RH.

Clube Português do Pâncreas Recommendations for Chronic Pancreatitis: Etiology, Natural History, and Diagnosis (Part I).

Chronic pancreatitis (CP) is a heterogeneous disease, with different causes and often a long delay between onset and full classic presentation. Clinical presentation depends on the stage of the disease. In earlier stages, recurrent episodes of acute pancreatitis are the major signs dominating clinical presentation. As the inflammatory process goes on, less acute episodes occur, and pain adopts different aspects or may even disappear. After 10-15 years from onset, functional insufficiency occurs. Then, a classic presentation with pain and pancreatic exocrine and endocrine insufficiency appears. Diagnosis remains challenging in the early stages of the disease, as its initial presentation is usually ill-defined and overlaps with other digestive disorders. Computed tomography and magnetic resonance cholangiopancreatography should be the first choice in patients with suspected CP. If the results are normal or equivocal but still there is a high suspicion of CP, the next option should be endoscopic ultrasound. Endoscopic retrograde cholangiopancreatography is mainly a therapeutic technique, and for the diagnostic purpose should only be used when all other imaging modalities and pancreatic function tests have been exhausted. Indirect tests are used to quantify the degree of insufficiency in already-established late CP. Recommendations on CP were developed by Clube Português do Pâncreas (CPP), based on literature review to answer predefined topics, subsequently discussed and approved by all members of CPP. Recommendations are separated in two parts: "chronic pancreatitis etiology, natural history, and diagnosis," and "chronic pancreatitis medical, endoscopic, and surgical treatment." This abstract pertains to part I.

A pancreatite crónica (PC) é uma doença heterogénea, com diferentes etiologias, muitas vezes, com um longo período entre o início de sintomatologia e a apresentação clínica clássica. A clínica depende do estadio da doença, sendo que nos estadios iniciais, predominam episódios recorrentes de pancreatite aguda; com a progressão da doença, os episódios agudos tornam-se menos frequentes, e a dor adota padrões diferentes, podendo inclusive desaparecer; a insuficiência funcional desenvolve-se 10 a 15 anos após o início, assumindo-se então, a apresentação clássica com dor, insuficiência pancreática exócrina e endócrina. O diagnóstico pode ser desafiador nos estadios iniciais da doença, já que a apresentação inicial é geralmente mal definida e se sobrepõe a outros patologias gastrointestinais. A TAC e CPRM devem ser os primeiros métodos de imagem em doentes com suspeita de PC. Se os resultados forem normais ou ambíguos, a próxima opção deve ser a ecoendoscopia. A CPRE é uma técnica principalmente terapêutica, sendo que para fins de diagnóstico, deve ser reservada para quando todas os outros exames de imagem/testes de função pancreática forem inconclusivos. Testes indiretos de função pancreática devem ser usados para quantificação do grau de insuficiência pancreática em doentes com PC já estabelecida. As recomendações sobre PC foram desenvolvidas pelo Clube Português do Pâncreas (CPP), com base numa revisão da literatura para responder a questões predefinidas, posteriormente discutidos e aprovados por todos os membros do CPP. As recomendações encontram-se separadas em duas partes: "etiologia da pancreatite crónica, história natural e diagnóstico" e "tratamento médico, endoscópico e cirúrgico da pancreatite crónica." Este resumo corresponde à parte I.

The open abdomen: analysis of risk factors for mortality and delayed fascial closure in 101 patients.

INTRODUCTION: The core concepts of damage control and open abdomen in trauma surgery have been expanding for emergent general surgery. Temporary closures allow ease of access to the abdominal cavity for source control.The aim of the current study was to assess the outcomes of patients who underwent open abdomen management for acute abdominal conditions and evaluate risk factors for worse outcomes and inability of fascial closure during the initial hospitalization. METHODS: We conducted a retrospective analysis of 101 patients submitted to laparostomy in a single institution from January 2009 to March 2017. The evaluated outcomes were mortality, local morbidity, and rate of primary fascial closure. RESULTS: The most common indications for open abdomen were bowel perforation, bowel ischemia, and necrotizing pancreatitis. Global in-hospital mortality rate was 62.4%. For the 37 patients discharged from the hospital, a definitive abdominal closure was attained in 28.Multivariable logistic regression analysis revealed that people older than 60 years of age and with Acute Physiology and Chronic Health Evaluation (APACHE II) scores over 18.5 had higher in-hospital mortality rates. Definitive fascial closure was statistically associated with a lower number of re-interventions and ICU stay. CONCLUSIONS: Open abdomen management may be appropriate in these critically ill patients; however, it continues to be associated with significantly high mortality, especially in elder patients and with higher APACHE II scores. Recognition of risk factors for fascia closure failure should promote the investigation for a tailored surgical approach in these patients.

Virtual Reality Simulation as a Tool to Monitor Surgical Performance Indicators: VIRESI Observational Study.

INTRODUCTION: Virtual reality simulation is a topic of discussion as a complementary tool to traditional laparoscopic surgical training in the operating room. However, it is unclear whether virtual reality training can have an impact on the surgical performance of advanced laparoscopic procedures. Our objective was to assess the ability of the virtual reality simulator LAP Mentor to identify and quantify changes in surgical performance indicators, after LAP Mentor training for digestive anastomosis. MATERIAL AND METHODS: Twelve surgeons from Centro Hospitalar de São João in Porto (Portugal) performed two sessions of advanced task 5: anastomosis in LAP Mentor, before and after completing the tutorial, and were evaluated on 34 surgical performance indicators. RESULTS: The results show that six surgical performance indicators significantly changed after LAP Mentor training. The surgeons performed the task significantly faster as the median 'total time' significantly reduced (p < 0.05) from 759.5 to 523.5 seconds. Significant decreases (p < 0.05) were also found in median 'total needle loading time' (303.3 to 107.8 seconds), 'average needle loading time' (38.5 to 31.0 seconds), 'number of passages in which the needle passed precisely through the entrance dots' (2.5 to 1.0), 'time the needle was held outside the visible field' (20.9 to 2.4 seconds), and 'total time the needle-holders' ends are kept outside the predefined operative field' (88.2 to 49.6 seconds). DISCUSSION: This study raises the possibility of using virtual reality training simulation as a benchmark tool to assess the surgical performance of Portuguese surgeons. CONCLUSION: LAP Mentor is able to identify variations in surgical performance indicators of digestive anastomosis.

Introdução: A simulação de procedimentos cirúrgicos através de realidade virtual é referida como uma alternativa complementar ao treino tradicional de laparoscopia no bloco operatório. Pretendeu-se avaliar a capacidade do simulador de realidade virtual LAP Mentor para identificar variações em indicadores de desempenho cirúrgico, após a sessão de treino em anastomose digestiva. Material e Métodos: Um grupo de 12 cirurgiões do Centro Hospitalar de São João do Porto realizou duas sessões da tarefa de anastomose do LAP Mentor, antes e depois da formação fornecida pelo simulador. Foram avaliados 34 indicadores de desempenho cirúrgico em cada sessão. Resultados: Seis indicadores de desempenho cirúrgico apresentaram variações significativas após o treino realizado. A mediana do 'tempo total' necessário para completar a tarefa diminuiu significativamente (p < 0,05) de 759,5 para 523,5 segundos. Verificámos uma diminuição significativa (p < 0,05) nas medianas dos indicadores 'tempo total de carregar a agulha no porta-agulhas' (303,3 para 107,8 segundos), 'tempo médio de carregamento da agulha' (38,5 para 31,0 segundos), 'número de passagens em que a agulha passou precisamente através dos pontos de entrada' (2,5 para 1,0), 'tempo em que a agulha foi manipulada fora do campo de visão' (20,9 para 2,4 segundos), e 'tempo total em que as extremidades dos porta-agulhas foram mantidas fora do campo operatório' (88,2 para 49,6 segundos). Discussão: Este estudo mostra o potencial da realidade virtual servir como ferramenta para a avaliação do desempenho cirúrgico dos cirurgiões portugueses. Conclusão: O simulador de realidade virtual LAP Mentor tem a capacidade de identificar variações em indicadores de desempenho cirúrgico de anastomose digestiva.

CA 19-9 as a Marker of Survival and a Predictor of Metastization in Cholangiocarcinoma.

BACKGROUND: Cholangiocarcinoma is the second most frequent primitive liver malignancy and is responsible for 3% of the malignant gastrointestinal neoplasms. The aims of this study were to determine the association of serum levels of CA 19-9 at diagnosis with other clinical data and serum liver function tests and to identify possible factors that influence the survival rates during follow-up. METHODS: Retrospective observational study of 89 patients with a diagnosis of cholangiocarcinoma followed at the Department of Gastroenterology during 5 years. Statistical analyses were performed using SPSS version 20.0. RESULTS: Patients were followed up for a median time of 127 days (IQR: 48-564), and the median age at diagnosis was 71.0 years (IQR: 62.0-77.5). The median survival rate was 14.0 months (IQR: 4.3-23.7), and the mortality rate was 79%. Patients with CA 19-9 levels ≥103 U/L had lower albumin levels and higher levels of alanine aminotransferase and γ-glutamyltransferase. CA 19-9 levels ≥103 U/L were associated with a higher probability of metastization (p = 0.001) and lower rates of treatment with curative intent (p = 0.024). In a multivariate analysis, CA 19-9 levels <103 U/L and surgery were independent predictors of survival. CONCLUSION: Predictive factors for overall survival were identified, namely presence of metastasis, surgery, and chemotherapy. CA 19-9 levels ≥103 U/L were predictive factors for survival and metastization.

Gallstones and Bariatric Surgery: To Treat or Not to Treat?

BACKGROUND: Obesity and rapid weight loss after bariatric surgery are risk factors for gallstone disease. OBJECTIVES: The present study sought to evaluate the feasibility of selective concomitant cholecystectomy only in patients with symptomatic disease and study risk factors for the development of symptomatic gallstones after bariatric surgery. METHODS: Between January 2010 and December 2012, 734 consecutive patients presenting to our institution underwent bariatric surgery. From these, 81 patients were excluded due to prior or concurrent cholecystectomy. The remaining 653 patients with in situ gallbladder were followed for 12 months and were clinically screened for symptomatic or complicated cholelithiasis. Clinical and demographic characteristics were compared at baseline and 12 months after surgery. RESULTS: Of the 653 patients with in situ gallbladder, only 24 (3.3 %) developed symptomatic gallstones and only nine presented complicated disease. None of the patients with asymptomatic disease at the time of surgery progressed to symptomatic or complicated disease. Patients who developed symptomatic disease were not significantly different, although there was a trend toward longer obesity evolution, lower insulin levels, and lower hepatic enzymes level. A multivariate regression analysis revealed that patients with gastric sleeve were more likely to develop symptomatic gallstones. CONCLUSIONS: Although further studies are required, the management of gallstones in morbidly obese patients should not be different from normal-weight patients. Therefore, performing a laparoscopic cholecystectomy only in symptomatic patients is an effective approach and asymptomatic gallstones should not be treated at the time of bariatric surgery.

Spotlight on esophageal perforation: A multinational study using the Pittsburgh esophageal perforation severity scoring system.

OBJECTIVE: The Pittsburgh group has suggested a perforation severity score (PSS) for better decision making in the management of esophageal perforation. Our study aim was to determine whether the PSS can be used to stratify patients with esophageal perforation into distinct subgroups with differential outcomes in an independent study population. METHODS: In a retrospective study cases of esophageal perforation were collected (study-period, 1990-2014). The PSS was analyzed using logistic regression as a continuous variable and stratified into low, intermediate, and high score groups. RESULTS: Data for 288 patients (mean age, 59.9 years) presenting with esophageal perforation (during the period 1990-2014) were abstracted. Etiology was spontaneous (Boerhaave; n = 119), iatrogenic (instrumentation; n = 85), and traumatic perforation (n = 84). Forty-three patients had coexisting esophageal cancer. The mean PSS was 5.82, and was significantly higher in patients with fatal outcome (n = 57; 19.8%; mean PSS, 9.79 vs 4.84; P < .001). Mean PSS was also significantly higher in patients receiving operative management (n = 200; 69%; mean PSS, 6.44 vs 4.40; P < .001). Using the Pittsburgh strata, patients were assigned to low PSS (≤2; n = 63), intermediate PSS (3-5; n = 86), and high PSS (>5; n = 120) groups. Perforation-related morbidity, length of stay, frequency of operative treatment, and mortality increased with increasing PSS strata. Patients with high PSS were 3.37 times more likely to have operative management compared with low PSS. CONCLUSIONS: The Pittsburgh PSS reliably reflects the seriousness of esophageal perforation and stratifies patients into low-, intermediate-, and high-risk groups with differential morbidity and mortality outcomes.

Nonrecurrent Laryngeal Nerve and Associated Anatomical Variations: The Art of Prediction.

INTRODUCTION: A nonrecurrent laryngeal nerve (NRLN) is a rare anatomical variation in which the nerve enters the larynx directly off the cervical vagus nerve. CASE REPORT: We present 2 patients who underwent thyroid surgery for benign disease. Intraoperatively, type 2a and 1 NRLN were identified. Due to the frequent association with a vascular abnormality, an ultrasound and a computed tomography were performed which showed a right aberrant subclavian artery with a retroesophageal course and a common trunk of the common carotids in both patients. DISCUSSION AND CONCLUSION: The presence of an NRLN is a major risk during surgical procedures and the surgeon should be aware of the possibility of its existence. NRLN may be associated with rare vascular anomalies, such as arteria lusoria and a bicarotid trunk. This paper reveals this association in 2 patients for the first time.

The good, the bad and the ugly: surgical resection for non-colorectal, non-neuroendocrine liver metastases.

BACKGROUND/AIMS: The aim of this retrospective study was to analyze outcomes after partial hepatectomy for non-colorectal non-neuroendocrine metastases (mNCRNNE) and to identify prognostic factors associated with survival. METHODOLOGY: Patient demographics, tumor characteristics, treatment and outcome of 30 consecutive patients operated between January 1995 and June 2012 were analyzed. The Kaplan-Meier method was used to analyze survival and Cox regression models were applied to identify independent prognostic variables. RESULTS: NCRNNE primaries included stomach (n=13), breast (n=5), pancreas (n=3), choroid melanoma (n=2), unknown primary (n=1) and others (n=6). Thirty-day mortality. rate was 3.3% and morbidity rate was 23.3%. Following hepatectomy, median overall (OS) and disease- free survival (DFS) were 24 and 12 months, respectively. In univariate analysis, longer disease-free interval (p=0.04) was associated with better OS. Histology of the primary tumor (p=0.003) and the presence of extrahepatic disease (p=0.04) were associated with a lower DFS. Cox regression analysis identified histology as an independent prognostic factor for DFS (p=0.013). CONCLUSIONS: In selected patients, resection of mNCRNNE appears associated with prolonged survival and may be performed in a specialized environment with acceptable morbidity and mortality. Patients with a longer disease-free interval, specific primary location and histology and absence of extra-hepatic disease seem to benefit the most from this approach.

Three decades of clinical-pathological trends in gastric cancer: prospective data from a Portuguese hospital.

INTRODUCTION: Gastric cancer is a heterogeneous disease, whose pathological and clinical patterns have changed in the last decades. In most western countries, decreases in incidence and mortality and a proximal migration have been reported. The clinical and pathological trends in an European country with high prevalence of gastric cancer were reviewed, based on the patients treated at a University Hospital. METHODS: Analysis of a prospective database with 1618 patients who underwent surgery for gastric cancer in the last 3 decades. The patients were divided in 3 groups according to decades and the cohorts were analyzed according to demographic, surgical and pathological factors. RESULTS: The mean age increased from 59.8 to 65.6 years. Antral tumors and intestinal cancer were the most frequent. The rate of complete resection increased as well as the percentage of total gastrectomies and D2-type lymphadenectomies. There was an increase both in early stage carcinomas and in surgically treated Stage-IV carcinomas. The median overall crude survival almost doubled from 14 to 22 months (p = 0.003), but once stratified for stage, only in stage II patients could we observe a significant increase in survival time. (29-47 months; p = 0.047). CONCLUSION: The proximal migration described for Western Europe was not observed and the intestinal-type carcinoma is still the most frequent. We are treating older patients, often with more advanced disease. In spite of an increasing surgical aggressiveness, the prognosis has only been significantly improved in Stage-II cancers. The prognosis for advanced cancer is still dismal, hence the need for effective adjuvant treatments.

Gastric bypass is a cost-saving procedure: results from a comprehensive Markov model.

BACKGROUND: Obesity is a growing public health problem in industrialized countries and is directly and indirectly responsible for almost 10% of all health expenditures. Bariatric surgery is the best available treatment, however, associated with important economical expenditures. So, cost-effectiveness analysis of the available surgical options is paramount. METHODS: We developed a Markov model for three different strategies: best medical management, gastric band, and gastric bypass. The Markov model was constructed to allow for the evaluation of the impact of several obesity-related comorbidities. The results were derived for a representative population of morbidly obese patients, and subgroup analyses were performed for patients without comorbidities, patients with diabetes mellitus, different age, and body mass index (BMI) groups. Cost-effectiveness analysis was performed accounting for lifetime costs and from a societal perspective. RESULTS: Gastric bypass is a dominant strategy, rendering a significant decrease in lifetime costs and increase in quality-adjusted life years (QALYs). Comparing with the best medical management, in the global population of patients with a BMI of > 35 kg/m2, gastric bypass renders 1.9 extra QALYs and saves on average 13,244€ per patient. Younger patients, patients with a BMI between 40 and 50 kg/m2, and patients without obesity-related diseases are the ones with a bigger benefit in terms of cost effectiveness. CONCLUSIONS: Gastric bypass surgery increases quality-adjusted survival and saves resources to health systems. As such, it can be an important process to control the ever-increasing health expenditure.

Prognostic factors for traumatic bowel injuries: killing time.

BACKGROUND: Intestinal rupture/perforation after abdominal trauma is a rare complication, but it is related to significant morbidity and mortality. Our objective is to identify determinants of prognosis in patients surgically treated for a bowel injury (small bowel and colon) after abdominal trauma. METHODS: The present study is a retrospective analysis of 102 patients seen at our hospital during a 10-year period in whom laparotomy for traumatic bowel injury was performed. Predictors for morbidity and mortality were assessed in univariate and multivariate analysis models. RESULTS: Mean age at diagnosis was 40 years, and most patients were male. There was a slight preponderance of blunt abdominal trauma, and the most frequent mechanism of injury was motor vehicle accident. In 75% of patients there was a small bowel lesion, and the colon was affected in 47%. There was no statistical relation between stoma construction and mortality, but an increase in morbidity was ultimately dependent on the severity of the underlying trauma. The univariate determinants of mortality were the new injury severity score (NISS) and American Society of Anesthesiologists (ASA) scores, the presence of blunt trauma and multiple intestinal or extra-abdominal lesions, and the elapsed time to surgery. The occurrence of postoperative complications was related to all these factors, as well as to tachycardia, hypotension, and bleeding. In multivariate analysis ASA score (p = 0.015), NISS (p = 0.002), time to surgery (p = 0.007), and presence of colonic lesions (p = 0.02) were identified as independent prognostic factors for postoperative morbidity. CONCLUSIONS: The only modifiable determinant of morbidity seems to be the time to surgery. Only an expeditious evaluation and diagnosis and prompt surgical intervention can improve the prognosis of these patients.