Primary hepatic angiosarcoma: a systematic review.

Background: Hepatic angiosarcoma is a rare type of tumour. In adults, the diagnosis remains challenging as the clinical manifestations are generally nonspecific and are usually made too late when complications or metastases are already present, associated with a poor prognosis. Due to the lack of agreement regarding the optimal treatment approach, a comprehensive analysis of the evidence in the literature on the surgical and survival outcomes in terms of disease-free survival time (DFS) and overall survival (OS) for patients treated for primary hepatic angiosarcoma is needed. Study design: A systematic review of articles published in Pubmed, EMBASE, and Scopus, from 2000 to 2023 with the search terms hepatic angiosarcoma and liver resection or hepatectomy. Pooled individual data concerning the prognosis following various therapies was analyzed. Results: A total of 15 articles involving 886 patients were eligible for inclusion. The male population represents 66.2% (n=586) of the population, with a median age of 57 years (41-66). The median survival rate was 7 months. The median OS after surgical resection was 17.18 months (SD 12.6) vs. 3.72 months (SD 4.6) for patients treated without a surgical approach. The median DFS was 15.2 months (SD 11). Conclusion: Primary liver angiosarcoma remains a surgical challenge with a poor prognosis even with complete surgical resection and adjuvant therapy. Surgical management shows increased overall survival in comparison with non-surgical management. Early diagnosis could change the natural history of the disease. The literature available is scarce, and further studies are required to create standardized diagnostic and treatment protocols.

Justice for rural women: An exploratory analysis of institutions and mechanisms to access justice in Chimborazo, Ecuador.

Access to justice is a fundamental principal of the rule of law. With this in mind, this research aims to analyze the mechanisms and barriers that women from rural areas in the province of Chimborazo, Ecuador, face when seeking justice. This investigation adopted a qualitative method approach, and was comprised of exploratory fieldwork as well as descriptive documentary analysis. The findings indicate that in this province, rural women's access to justice is facilitated through various government institutions and university legal clinics. These entities collaborate to spread awareness and offer direct legal assistance. However, despite these efforts, challenges persist, including the lack of specific data on the affected women's localities and the need for broader dissemination of available legal pathways. The study concludes that addressing these shortcomings is essential to further bolster the province's legal infrastructure and better address the intricate needs of its female population, particularly those from rural backgrounds.

Association between clinical and surgical variables with postoperative outcomes in patients treated for intestinal obstruction for non-malignant conditions: a cross-sectional study.

Intestinal obstruction is considered a frequent surgical pathology related to previous surgical procedures. Many different factors can lead to different outcomes when surgical management is needed. Therefore, we aim to describe the factors related to morbidity and mortality in surgical management of IO in a single-center experience. Retrospective observational study with a prospective database, in which we described patients who underwent surgical management due to intestinal obstruction between 2004 and 2015. Demographics, perioperative data, surgical outcomes, morbidity, and mortality were described. 366 patients were included. Female were 54.6%. Mean age was 61.26. Laparoscopic approach was done in 21.8% and the conversion rate was 17.2%. Intestinal resection was performed in 37.9% of the cases. Postoperative complications were observed in 18.85%. Reintervention and mortality were 9.5% and 4.1% respectively. Laparoscopic approach shows lesser time of intestinal transit (mean 28.67 vs. mean 41.95 h), and restart of oral intake after surgery (mean 96.06 vs. mean 119.65) compared with open approach. Increased heart rate and intensive care unit length of stay were related with mortality (p 0.01 and 0.000 respectively). For morbidity, laparotomy and need and duration of ICU stay were related with any complication statistically significant (p 0.02, 0.008, 0.000 respectively). Patients with increased heart rate in the emergency room, decreased amount of intravenous fluids, need and higher length of stay in the intensive care unit, and delay in resuming oral intake after surgery appear to have poor outcomes. Laparoscopic approach seems to be a safe and feasible approach for intestinal obstruction in selected patients.

Intermediate risk of choledocholithiasis: are we on the right path?

The risk of choledocholithiasis should be assessed in every patient undergoing cholecystectomy to define the next step. The American Society for Gastrointestinal Endoscopy proposed a stratified predictor scale of choledocholithiasis. Therefore, we aimed to describe our experience managing patients with an intermediate risk of choledocholithiasis according to the American Society for Gastrointestinal Endoscopy guidelines and the actual presence of bile duct stones in magnetic resonance cholangiopancreatography. Methods: A retrospective observational study with a prospective database was conducted. The analysis included sociodemographic data, laboratory values, and imaging. Bivariate, multivariate, and receiver operating characteristic analysis were performed. Results: Three hundred twenty-seven patients had an intermediate risk for choledocholithiasis. Half the patients were at least 65 years old. 24.77% were diagnosed with choledocholithiasis. Bile duct dilation was documented in only 3.06% of cases. Diagnosis of choledocholithiasis is associated with an age odds ratio (OR): 1.87 (P 0.02), alkaline phosphatase OR: 2.44 (P 0.02), and bile duct dilation greater than 6 mm OR: 14.65 (P 0.00). Conclusions: High variability in the accuracy of imaging techniques results in a large number of patients classified as intermediate risk without choledocholithiasis in cholangioresonance. Therefore, enhancing the criteria to define intermediate risk for patients in order to optimize resources is of paramount importance.

Valentino's syndrome: Simulation of acute appendicitis in the context of peptic ulcer perforation. Case report and literature review.

INTRODUCTION AND IMPORTANCE: Abdominal pain (AP) is one of the main reasons for consultation in the emergency department worldwide. The causes of AP are gathered in a broad group of pathologies whose incidence and prevalence vary according to various factors. The great importance of an adequate approach to AP lies in ruling out or confirming the presence of acute abdomen that requires emergency surgical management. Valentino's Syndrome (VS) simulates the clinical manifestations of acute appendicitis whose origin is the perforation of a peptic ulcer. This is an infrequent entity, with very few reports in the literature, this being the second case reported in Colombia. CASE PRESENTATION: We present a case of VS in a 59-year-old male patient who was admitted to the emergency department with 3 days of pain in the right iliac fossa that met the diagnostic criteria for acute appendicitis. However, upon surgical exploration, it was determined that the cause was secondary to peptic ulcer perforation (PPU). DISCUSSION: PPU is one of the most infrequent complications of the disease, occurring in close to 10 % of cases, and is considered a surgical emergency. Minimally invasive surgery provides a significant benefit over open surgery, outcomes that directly lead to decreased healthcare costs and increased patient satisfaction. CONCLUSION: PPU represents a diagnostic challenge due to the variability of the symptoms and clinical features. Laparoscopic approach fulfills diagnostic and therapeutic roles with lesser morbidity and mortality rates, which is why it should be standardized. Malignancy should be ruled out in all cases.

Endovascular approach of hepatic artery pseudoaneurysm after Whipple procedure: Case report and literature review.

INTRODUCTION AND IMPORTANCE: Pseudoaneurysms after pancreatoduodenectomy are an uncommon complication, but they are associated with life-threatening outcomes in up to 50 % due to the development of postoperative bleeding. They usually result as a consequence of local inflammatory processes, such as pancreatic fistula or intra-abdominal collections. The cornerstones of treatment are thus intraoperative management and early identification of the complication. CASE PRESENTATION: We present a 62-year-old female patient in postoperative pancreatoduodenectomy due to a periampullary tumor, that presented upper gastrointestinal bleeding which required multiple transfusions. During hospitalization, the patient presented a refractory hypovolemic shock to conservative measures. It was documented intra-abdominal hemorrhage due to hepatic artery pseudoaneurysm that required endovascular management with common hepatic artery embolization, with successful bleeding control. CLINICAL DISCUSSION: Pseudoaneurysms are the result of tissue damage after surgery. The usual clinical presentation is upper gastrointestinal bleeding unresponsive to conservative treatment that results in hemodynamic instability due to hypovolemic shock. Prevention is currently based on preoperative and intraoperative measures such as nutritional repletion, vessel protection, adequate hemostasis, and prevention and treatment of pancreatic leak and abdominal infection. Once documented, treatment can be endovascular or surgical. CONCLUSION: The formation of pseudoaneurysms after pancreaticoduodenectomy is an uncommon and challenging complication. Early diagnosis, risk factor detection and a combined multidisciplinary approach lead to better outcomes, avoiding open surgical procedures that can increase morbidity and mortality rates.

Giant Hydatid Cyst with Diaphragmatic, Pericardial, and Hepatic Involvement: Use of Extracorporeal Circulation for Major Liver Resection: A Case Report and Literature Review.

BACKGROUND Echinococcosis is a zoonosis caused by the echinococcus microorganism, a parasite with 6 described species in the literature, the main one in humans being Echinococcus granulosus. Transmission is via the fecal-oral route, with main hepatopulmonary involvement but with high risk of dissemination. Diagnosis is often incidental and patients present a wide range of non-specific symptoms, closely related to localization, size, and quantity of cysts. The latent risk of the infection is septic shock secondary to intraperitoneal rupture, which increases the risk of mortality. The criterion standard of management involves anthelmintic therapy and radical surgical management. CASE REPORT We present the case of a man in the third decade of life from a rural area of Colombia, presenting abdominal pain and febrile peaks for 2 months. Imaging studies showed a cystic lesion with thoracic and hepatic involvement. He was treated in 2 surgical stages, the first achieving partial resection of the cyst involving lung, diaphragm, and rib cage, and the second with extracorporeal circulation assistance due to infiltration of the retrohepatic vena cava, achieving radical resection of the disease. CONCLUSIONS Echinococcosis is a condition endemic to rural areas, with wide geographical distribution. Given the slow growth, it is mostly asymptomatic, which causes diagnostic and therapeutic challenges involving high rates of complications and mortality. An individualized surgical and medical approach is recommended. Extracorporeal circulation assistance helps achieve hemodynamic stability in patients with cardiac or great vessel involvement. To the best of our knowledge, this is the first report of extracorporeal circulation assistance for large hepatic-diaphragmatic and pericardial cyst resection.

Variations in clinical course and surgical outcomes of acute appendicitis during COVID-19 Pandemic: a multicenter cohort study.

BACKGROUND: COVID-19 pandemic has led to changes in the presentation and treatment of surgical pathologies. Therefore, we aim to describe the influence of the COVID-19 pandemic on the clinical presentation and management of acute appendicitis (AAp) and its surgical outcomes. STUDY DESIGN: A multicenter cohort study with prospectively collected databases. Three high-volume centers were included and all patients over 18 years of age who underwent appendectomy for AAp were included. Multiple logistic regression and multinomial logistic regression were performed, and odds ratio, relative risk, and B-coefficient were reported when appropriate, statistical significance was reached with p-values < 0.05. RESULTS: 1.468 patients were included (709 in the pre-pandemic group and 759 in the COVID-19 group). Female patients constituted 51.84%. Mean age was 38.13 ± 16.96 years. Mean Alvarado's score was 7.01 ± 1.59 points. Open surgical approach was preferred in 90.12%. Conversion rate of 1.29%. Mortality rate was 0.75%. There was an increase of perforated and localized peritonitis (p 0.01) in the COVID-19 group. Presence of any postoperative complication (p 0.00), requirement of right colectomy and ileostomy (p 0.00), and mortality (p 0.04) were higher in the COVID-19 group. Patients in the pre-pandemic group have a lesser risk of mortality (OR 0.14, p 0.02, 95% CI 0.02-0.81) and a lesser relative risk of having complicated appendicitis (RR 0.68, p 0.00, 95% CI 0.54-0.86). CONCLUSION: Complicated appendicitis was an unexpected consequence of the COVID-19 pandemic, due to surgical consultation delay, increased rates of morbidity, associated procedures, and mortality, influencing the clinical course and surgical outcomes of patients with AAp.

The Clinical Impact of Thoracic Endovascular Aortic Repair in the Management of Thoracic Aortic Diseases.

PURPOSE: Thoracic endovascular aortic repair (TEVAR) has been described to be superior to an open surgical approach, and previous studies have found superiority in TEVAR by reducing overall morbidity and mortality rates. This study aimed to describe the outcomes of TEVAR for patients with thoracic aortic disease at a high complexity. MATERIALS AND METHODS: Descriptive study, developed by a retrospective review of a prospectively collected database. Patients aged above 18 years who underwent TEVAR between 2012 and 2022 were included. Patient demographics, perioperative data, surgical outcomes, morbidity, and mortality were described. Statistical and multivariate analyses were made. Statistical significance was reached when p values were <0.05. RESULTS: A total of 66 patients were included. Male patients were 60.61% and the mean age was 69.24 years. Associated aortic diseases were aneurysms (68.18%), ulcer-related (4.55%), intramural-related hematoma (7.58%), trauma-related pathology (1.52%), and aortic dissection (30.30%). The mean hospital stay was 18.10 days, and intensive care unit was required for 98.48%. At 30 days, the mortality rate was 10.61% and the reintervention rate was 21.21%. Increased intraoperative blood loss (p=0.001) and male sex (p=0.04) showed statistical relationship with mortality. Underweight patients have 6.7 and 11.4 times more risk of complications and endoleak compared with higher body mass index values (p=0.04, 95% confidence interval [CI]=0.82-7.21) and (p=0.02, 95% CI=1.31-12.57), respectively. CONCLUSION: Thoracic endovascular aortic repair seems to be a feasible option for patients with thoracic aortic pathologies, with adequate rates of mortality and morbidity. Underweight patients seem to have an increased risk of overall morbidity and increased risk for endoleak. Further prospective studies are needed to prove our results. CLINICAL IMPACT: Obesity and BMI are widely studied in the surgical literature. According to our study, there is a paradox regarding the outcomes of patients treated with TEVAR in terms of postoperative complications and mortality related to the body mass index. And shouldn't be considered as a high-risk feature in terms of postoperative morbidity and mortality in this procedure.

Hepatic artery lymph node relevance in periampullary tumors: A retrospective analysis of survival outcomes.

Background: The Periampullary area comprehends a heterogeneous and complex structure with different histological tissues. Surgical standards include the peripancreatic regional lymphadenectomy, and during pancreatoduodenectomy (PD) the hepatic artery lymph node HALN(8a) is dissected. We aimed to describe the prognostic significance of the HALN(8a) lymph node metastasis in terms of disease-free survival (DFS) and overall survival (OS) in a specific cohort of patients in limited economic and social conditions. Methods: A retrospective study was conducted based on a prospective database from the HPB department of patients who underwent pancreaticoduodenectomy (PD) due to periampullary tumors during 2014-2021. Overall survival (OS) and disease-free survival (DFS) were estimated to be associated with positive HALN(8a) using Kaplan-Meier analysis. Log Rank test and Cox proportional hazards regression analysis was used. Results: 111 patients were included, 55,4% female. The most frequent pathology was ductal adenocarcinoma (60.3%). The positive rate of the HALN(8a) node was 21.62%. The Median OS time was 25.5 months, and the median DFS time was 13,8 months. Positive HLAN(8a) node, the cutoff of lymph node ratio resection (LNRR), and vascular invasion showed a strong association with OS. (CoxRegression p = 0.03 HR 0.5, p 0.003 HR = 1.8, p = 0.02 HR 0.4 CI 95%). In terms of DFS, lymph node ratio cutoff, tumoral size, and vascular invasion showed a statistically significant association with the outcome (p = 0.008, HR = 1.5; p = 0.04 HR = 2.1; p = 0.02 HR = 0.4 CI 95%). Conclusion: In this series of PD, OS was reduced in patients with HALN(8a) compromise in patients with pancreatic cancer, however without statistical significance in DFS. In multivariate analysis, lymph node status remains an independent predictor of OS and DFS. Further studies are needed.

Outcomes after Frey's procedure for chronic pancreatitis: a 8-year single-center experience in Colombia.

BACKGROUND: Chronic pancreatitis is an inflammatory disease characterized by irreversible morphological changes due to chronic pancreatic fibrosis. The treatment goals are to relieve pain, preserve function, and prevent further pathological consequences. Endoscopic treatment, surgery, or both are options for untreatable pain or suspected malignancy. Frey procedure is a reasonable surgical intervention because of its hybrid character, combining resection and drainage. Unfortunately, there is limited information about the outcomes of this procedure in Latin America, and few cases described in Colombia. This study aims to describe the experience of a pancreatic surgery reference center in the management of patients undergoing Frey's surgery for chronic pancreatitis. METHODS: A retrospective review of a prospectively collected database of patients who underwent a Frey procedure due to chronic pancreatitis between January 2014 to February 2022 in a hospital in Bogotá, Colombia, was made. A demographic, clinical, and postoperative outcome description was performed. Mann-Whitney Willcoxon test was performed between operative variables and long-term outcomes. RESULTS: Eighteen patients met the inclusion criteria. 55.5% of patients were male. Chronic pancreatitis etiology in most cases (83.3% n = 15) was idiopathic. The median duration of symptoms and chronic pancreatitis diagnosis before surgery was 6.15 months (IQR 5;97). Overall morbidity was 38.88%. One patient died at 30 days of follow-up. The median follow-up time was 42.5 (IQR 19;65 months). The median pain reduction was 3 points according to the visual analog score. Six patients were diagnosed with malignant conditions after surgery (mean 27.8 ± 7.5 months). Wirsung's duct size was statistically related with malignancy presentation after Frey's procedure (Z = 2.54; P = 0.01). CONCLUSION: According to our data, Frey's procedure remains safe and feasible, with acceptable outcomes in terms of pain relief and pancreatic function. The study confirms the importance of a longstanding follow-up due to an inherent risk of pancreatic malignancy. Our data suggest that pancreatic duct size could be related with the malignancy diagnosis after Frey's procedure; however, further prospective studies with a larger sample size would be helpful to confirm these results.

Transversus abdominis release (TAR) procedure: a retrospective analysis of an abdominal wall reconstruction group.

Complex abdominal wall defects are important conditions with high morbidity, leading to impairment of patients' physical condition and quality of life. In the last decade, the abdominal wall reconstruction paradigm has changed due to the formation of experienced and excellence groups, improving clinical outcomes after surgery. Therefore, our study shows the perspective and outcomes of an abdominal wall reconstruction group (AWRG) in Colombia, focused on the transverse abdominis release (TAR) procedure. A retrospective review of a prospectively collected database was conducted. All the patients older than 18 years old that underwent TAR procedures between January 2014-December 2020 were included. Analysis and description of postoperative outcomes (recurrence, surgical site infection (SSI), seroma, hematoma, and re-intervention) were performed. 47 patients underwent TAR procedure. 62% of patients were male. Mean age was 55 ± 13.4 years. Mean BMI was 27.8 ± 4.5 kg/m2. Abdominal wall defects were classified with EHS ventral Hernia classification having a W3 hernia in 72% of all defects (Mean gap size of 11.49 cm ± 4.03 cm). Mean CeDAR preoperative risk score was 20.5% ± 14.5%. Preoperative use of BOTOX Therapy (OR 1.0 P 0.00 95% CI 0.3-1.1) or pneumoperitoneum (OR 0.7 P 0.04 95% CI 0.3-0.89) are slightly associated with postoperative hematoma. In terms of hernia relapse, we have 12% of cases; all of them over a year after the surgery. TAR procedure for complex abdominal wall defects under specific clinical conditions including emergency scenarios is viable. Specialized and experienced groups show better postoperative outcomes; further studies are needed to confirm our results.

Porto-biliary fistula as an uncommon cause of haemobilia: A case report and literature review.

BACKGROUND: Haemobilia is a rare cause of gastrointestinal bleeding. It can be related to iatrogenic injuries, inflammatory diseases, and, more recently, postoperative, or post-procedure complications. Porto-biliary fistula is an uncommon case of haemobilia and has been related to iatrogenic injury or chronic inflammatory processes. To date, less than 30 cases of Porto-biliary fistula have been reported. CASE PRESENTATION: We present a 53 years-old woman with a history of biliary obstruction due to a choledochal cyst that required hepaticojejunostomy with evidence of anastomotic stricture. A percutaneous transhepatic biliary drainage (PTBD) was performed, with 3 failed attempts of percutaneous dilatation. A new hepaticojejunostomy was completed, however, 45 days later the patient presented to the emergency room with haemobilia and secondary hemodynamic instability. An emergency damage control laparotomy was performed, achieving bleeding control. In the second procedure, there is evidence of an ulcerative injury of the biliary tract secondary to a Porto-biliary fistula. CONCLUSION: Porto-biliary fistula is an entity that cannot be ruled out in cases of haemobilia, especially in cases with a history of bile duct surgical or percutaneous procedures. The prognosis is usually good if multidisciplinary management is performed, and the source of the bleeding is identified early.

Hemosuccus pancreaticus as an unusual cause of upper gastrointestinal bleeding: Case report and literature review.

BACKGROUND: Hemosuccus pancreaticus is a rare cause of upper gastrointestinal bleeding (1/1500) and represents the loss of blood through the main pancreatic duct and its exteriorization through the major duodenal papilla. It can lead to massive bleeding, which is potentially life-threatening. This condition most commonly follows pseudoaneurysm formation due to acute or chronic pancreatitis. As a result of its infrequency, it is difficult to diagnose, and the mortality rate remains high. To our knowledge, this is the first case report on the Latin-American population. CASE PRESENTATION: A 70-year-old male patient presented with diffuse severe abdominal pain associated with melaena. Angiotomography was performed, ruling out mesenteric ischemia, with evidence of pancreatic head tumor with liver metastases. Sandblom's triad was present and the diagnosis of hemosuccus pancreaticus was confirmed. Multiple arteriograms were performed, with pseudoaneurysm of gastroduodenal artery findings. Therefore, endovascular coil embolization was performed in two opportunities to control the bleeding. CONCLUSION: Upper gastrointestinal bleeding is a clinical challenge for the surgeon and emergency medicine. It's a complex entity with high mortality that should be suspected in patients with acute or chronic pancreatitis and periampullary tumors with non-established sources of bleeding. Clinically manifested by Sandblom's triad. Its diagnosis gold standard is arteriography plus embolization which is also therapeutic. Surgery is related to higher mortality and reserved for specific situations.

Trans-gastric and trans-abdominal percutaneous drainage of acute peripancreatic fluid infected collections: A retrospective analysis.

Background: Acute pancreatitis is one of the most common gastrointestinal diseases. Approximately 20% of the patients develop peripancreatic collections. Step-up management it's now the best approach with less rate of morbidity and mortality compared with open or minimally invasive surgery. Percutaneous management could reach a success rate between 50 and 76%. Our study shows the outcomes of trans-gastric versus transabdominal percutaneous drainage in cases of acute peripancreatic fluid infected collections in the absence of interventionist endoscopy. Methods: A retrospective review of a prospectively collected database was conducted. All the patients older than 18 years old that underwent percutaneous drainage between January 2010-December 2021 were included. Analysis and description of outcomes such as mortality, complications, and avoidance of surgical procedures was performed. Results: 18 patients underwent percutaneous drainage. 66.67% of patients were male. Mean age was 52.55 ± 22.06 years. Mean weight was 74.43 ± 15.25 kg. Mean size of peripancreatic collections 118.4 ± 49.12 mm. Wall-off necrosis was present in 33.33%. Trans-gastric approach was performed in 50% of the cases, the rest was trans-abdominal. No mortality was evidenced after 30 days of follow up. After trans-gastric percutaneous drainage, all patients avoided surgical open or laparoscopic procedure. Conclusion: Standardized step-up approach shows increased rates of success in percutaneous drainage of peripancreatic collections. Our case series shows a high rate of success in terms of avoidance any surgical procedure with no mortality after trans-abdominal and trans-gastric percutaneous drainage. Nevertheless, further prospective studies with higher sample size are needed.

Postoperative outcomes of minimally invasive adrenalectomy: do body mass index and tumor size matter? A single-center experience.

BACKGROUND: Since Gagner performed the first laparoscopic adrenalectomy in 1992, laparoscopy has become the gold-standard procedure in the treatment of adrenal surgical diseases. A review of the literature indicates that the rate of intra- and postoperative complications are not negligible. This study aims to describe the single-center experience of adrenalectomies; and explore the associations between body mass index (BMI) and tumor volume in main postoperative outcomes. METHODS: Retrospective observational study with a prospective database in which we described patients who underwent adrenalectomy between January 2015 and December 2020. Operative time, intraoperative blood loss, conversion rate, complications, length of hospital stay, and comparison of the number of antihypertensive drugs used before and after surgery were analyzed. Analysis of BMI and tumor volume with postoperative outcomes such as anti-hypertensive change (AHC) in drug usage and pre-operative conditions were performed. RESULTS: Forty-five adrenalectomies were performed, and all of them were carried out laparoscopically. Four were performed as a robot-assisted laparoscopy approach. Nineteen were women and 26 were men. Mean age was 54.9 ± 13.8 years. Mean tumor volume was 95.698 mm3 (3.75-1010.87). Mean operative time was shorter in right tumors (2.64 ± 0.75 h) than in left tumors (3.33 ± 2.73 h). Pearson correlation was performed to assess the relationship between BMI and AHC showing a direct relationship between increased BMI and higher change in anti-hypertensive drug usage at postoperative period r(45) = 0.92, p > 0.05 CI 95%. Higher tumor volume showed a longer operative time, r(45) = 0.6 (p = 0.000 CI 95%). CONCLUSIONS: Obese patients could have an increased impact with surgery with an increased change in postoperative anti-hypertensive management. Tumor volume is associated with increased operative time and blood loss, our data suggest that it could be associated with increased rates of morbidity. However, further prospective studies with larger sample sizes are needed to validate our results.

Cholecystogastric fistula in Bouveret syndrome: Case report and literature review.

INTRODUCTION AND IMPORTANCE: Cholelithiasis is the benign bile pathology with major prevalence. A rare condition has been described, when a stone migrates through the duodenum causing small bowel obstruction (SBO), it's known as Bouveret syndrome, and it's attributed to almost 5% of SBO. Just 2% of the cases present with the migration of the stone through a fistula between gastric chamber and gallbladder, with limited reports in the literature. CLINICAL FINDINGS: We present a case of an 87-year-old male with Bouveret syndrome and a cholecystogastric fistula with a stone in the gastric chamber who underwent laparoscopic gastrotomy to resolve the clinical case. CONCLUSION: Bouveret syndrome remains to be a rare condition in benign bile pathology. Individualized treatment should be performed and multidisciplinary approach leads to improved outcomes for the patient.

Appendicular agenesis as an unusual intraoperative finding in acute abdomen: Case report and literature review.

INTRODUCTION: Appendicular agenesis is a rare condition that accounts for 1 of every 100,000 exploratory laparotomies, usually in clinical suspicion of appendiceal inflammatory processes with higher incidence in adults. CLINICAL FINDINGS: We present a case of a 19-year-old female with appendicular agenesis who underwent exploratory laparoscopy in the context of appendiceal inflammatory process. CONCLUSION: Vermiform appendix agenesis is a challenging diagnosis made in most cases as an intraoperatively finding. Systematic revision of abdominal cavity should be performed after ruling out other causes of acute abdomen. No implications have been described in patients with appendix abnormalities.

Morbimortality assessment in abdominal surgery: are we predicting or overreacting?

BACKGROUND: High-risk surgical procedures represent a fundamental part of general surgery practice due to its significant rates of morbidity and mortality. Different predictive tools have been created in order to quantify perioperative morbidity and mortality risk. POSSUM (Physiological and Operative Severity Score for the enumeration of Mortality and morbidity) is one of the most widely validated predictive scores considering physiological and operative variables to precisely define morbimortality risk. Nevertheless, seeking greater accuracy in predictions P-POSSUM was proposed. We aimed to compare POSSUM and P-POSSUM for patients undergoing abdominal surgery. METHODS: A retrospective observational study with a prospective database was conducted. Patients over 18 years old who complied with inclusion criteria between 2015 and 2016 were included. Variables included in the POSSUM and P-POSSUM Scores were analyzed. Descriptive statistics of all study parameters were provided. The analysis included socio-demographic data, laboratory values ​​, and imaging. Bivariate analysis was performed. RESULTS: 350 Patients were included in the analysis, 55.1% were female. The mean age was 55.9 ± 20.4 years old. POSSUM revealed a moderated index score in 61.7% of the patients, mean score of 12.85 points ± 5.61. 89.1% of patients had no neoplastic diagnosis associated. Overall morbidity and mortality rate was 14.2% and 7.1%. P-POSSUM could predict more precisely mortality (p < 0.00). CONCLUSIONS: The POSSUM score is likely to overestimate the risk of morbidity and mortality in patients with high/moderate risk, while the P-POSSUM score seems to be a more accurate predictor of mortality risk. Further studies are needed to confirm our results.

Associating liver partition and portal vein ligation (ALPPS): A two staged procedure, in Bogotá Colombia. Case report and literature review.

INTRODUCTION: For liver tumors (primary or metastases), surgery combined with neoadjuvant, or adjuvant chemotherapy is the treatment of choice, offering long term survival time and disease-free time period (Alvarez et al., 2012) Associating liver partition and portal vein ligation, or ALPPS, it's a surgical technique that increases the future liver remnant in a short period of time, trying to avoid postoperative liver failure (PLF), and achieving R0 resections in liver malignant tumors (Alvarez et al., 2012). PRESENTATION OF THE CASE: A 43 years old woman with colorectal liver metastases in both lobes. Colorectal surgical procedure was performed 1 year previous the liver intervention, followed by adjuvant chemotherapy. Decision of a tri-segmental hepatectomy was made to resolve the metastases. Into the surgical procedure, we evaluated the liver parenchyma, and the future liver remnant tissue was insufficient, for that reason we decided to perform ALPPS procedure. DISCUSSION: Colorectal liver metastases (CLRM) are considered the most common indication for ALPPS procedure according to the international registry. Compared with the portal vein ligation, resection rate varies from 50 to 80%, and the non-resectability disease was explained by tumor progression. Postoperative mortality rate was 5.1% in young patients (<60 years old), and 8% in general for CRLM. Oncologic outcomes represent an increased disease-free survival period and overall survival time compared with non-surgical approach. CONCLUSION: The ALPPS procedure it's an interesting approach to patients with not enough liver remnant tissue, with good oncologic results in terms of disease-free survival time, and overall survival. Appropriate selection of the patient, careful postoperative management, and a multidisciplinary approach are related with good postoperative outcomes.