Diagnostic pathways in acute appendicitis: Clinical score plus ultrasound outperform CT scan or upfront surgery, especially in doubtful cases.

BACKGROUND: Controversies remain on the diagnostic strategy in suspected AA, considering the different settings worldwide. MATERIAL AND METHODS: A prospective observational international multicentric study including patients operated for suspected AA with a definitive histopathological analysis was conducted. Three groups were analyzed: (1) No radiology; (2) Ultrasound, and (3) Computed tomography. The aim was to analyze the performance of three diagnostic schemes. RESULTS: Three thousand and one hundred twenty three patients were enrolled; 899 in the no radiology group, 1490 in the US group, and 734 in the CT group. The sex ratio was in favor of males (p < 0.001). The mean age was lower in the no radiology group (24 years) compared to 28 and 38 years in US and CT-scan groups, respectively (p < 0.001). Overall, the negative appendectomy rate 3.8%: no radiology group (5.1%) versus US (2.9%) and CT-scan (4.1%) (p < 0.001). The sensitivity and specificity analysis showed the best balance in clinical evaluation + score + US. These data reach the best results in those patients with an equivocal Alvarado score (4-6). Inverse probability weighting (IPW), showed as the use of ultrasound, is significantly associated with an increased probability of formulating the correct diagnosis (p 0.004). In the case of a CT scan, this association appears weaker (p 0.08). CONCLUSION: The association of clinical scores and ultrasound seems the best strategy to reach a correct preoperative diagnosis in patients with clinical suspicion of AA, even in those population subgroups where the clinical score may have an equivocal result. This strategy can be especially useful in low-resource settings worldwide. CT-scan association may improve the detection of patients who may potentially be submitted to conservative treatment.

A delayed conversion may increase the risk of major complications in acute cholecystitis approached laparoscopically. A retrospective comparative cohort study.

AIM: Aim of this study was to evaluate whether timing of laparoscopy lasting longer than two hours before converting to open surgery can worsen the postoperative course during laparoscopic cholecystectomy (LC) for acute cholecystitis (AC). MATERIALS AND METHODS: Medical records of 1,161 patients who underwent urgent laparoscopic cholecystectomy for AC during the period 2001-2017 were retrospectively analyzed. A conversion to open surgery was performed in 70 (6%) patients. Among these, two groups of patients were identified: group 1 (n=51; 73%) included patients who underwent laparotomy within 2 hours from the beginning of the operation, and group 2 (n=19; 27%) included patients who underwent conversion to open surgery after more than 2 hours of laparoscopy. Patients were analyzed for demographic data and comorbidities. Major outcome measures were mortality, morbidity and length of stay. A p value < 0.05 was considered significant. RESULTS: Reasons for conversion to open surgery included severe inflammation (46%), visceral adhesions (27%), inability to manage common bile duct stones (17%), intolerance to pneumoperitoneum (7%) and the presence of a cholecystoduodenal fistula (1%). By comparing these groups, no significant differences were noted regarding overall morbidity (29% vs 42%, p=0.31), mortality (2% vs 5%, p=0.46) and mean postoperative length of stay (8.7 vs 8.2 days, p=0.75). Major postoperative complications (grade III-V according to Clavien and Dindo classification) were significantly more frequent in group 2 (p=0.03). CONCLUSIONS: When approaching AC laparoscopically, the decision to convert to open surgery within two hours may prevent the occurrence of major postoperative complications. Early conversion does not seem to affect the mortality and length of hospital stay. KEY WORDS: Acute Cholecystitis, Conversion, Laparoscopy.

Splenic abscess after splenic blunt injury angioembolization.

INTRODUCTION: Splenic Angioembolization (SAE), during Nonoperative Management (NOM) of Blunt Splenic Injury (BSI), is an effective therapy for hemodynamically stable patients with grade III, IV, and V OIS splenic injuries. We report a case of a patient with a blunt abdominal trauma due to an accidental fall, who presented splenic abscess a week after SAE and a review of the literature. CASE REPORT: A 38-year-old male arrived at Emergency after an accidental fall with contusion of the left upper quadrant of the abdomen. Abdominal CT scan revealed the fracture of the lower splenic pole with intraparenchymal pseudoaneurysms (OIS spleen injury scale IV). Considering the hemodynamic stability, NOM was undertaken and SAE was performed. After a week, the patient developed a splenic abscess confirmed by Abdominal CT; therefore, splenectomy was performed. There was no evidence of bacterial growing in the perisplenic hematoma cultures but the histological examination showed multiple abscess and hemorrhagic areas in the spleen. DISCUSSION: Splenic abscess after SAE during NOM of BSI is a rare major complication. The most frequently cultured organisms include Clostridium perfringens, Alpha-Hemoliticus Streptococcus, gram-positive Staphylococcus, gram-negative Salmonella, Candida, and Aspergillus. This case represents our first reported splenic abscess after SAE. CONCLUSION: SAE is a very useful tool for BSI managing; splenic abscess can occur in a short time, even if it is a rare major complication, so it may be useful to monitor patients undergoing SAE, focusing not only on the hemodynamic parameters but also on the inflammatory and infectious aspects.

The role of laparoscopy in adult bowel obstruction caused by intussusception.

AIM: The intestinal intussusception in the adult represent 1% of all occlusions. Organic causes are detectable in 90% of cases. Aim of this study is to discuss the diagnostic and therapeutic iter of adult intestinal intussusception with particular emphasis on role of laparoscopy. MATERIALS AND METHODS: We retrospectively considered 10 cases of intussusception between January 2000 and January 2013, demographic and clinical issue, location of invagination, the type of surgical treatment, the post-operative morbidity and mortality and histological nature of occlusion cause. RESULTS: Ten (F: M 1.5:1) patients were admitted in emergency with bowel obstruction, the median age was 50 years (r.18-91). All required surgical treatment. Three patients (30%) underwent a totally laparoscopic procedure, four patients (40%) laparoscopic exploration followed by laparotomy, three patients (30%) open surgery directly. The invagination was ileo-ileal (50%), ileo-colonic (40%) and colo-colonic (10%). Nine out of ten underwent to surgical resection. The malignancy was the most frequent cause. DISCUSSION: In case of colonic intussusception should not be performed any reduction because the frequent association with neoplastic disease. The laparoscopy can be safe and effective to allow, in entero-enteric and entero-colic intussusception, the definitive treatment of the occlusion. In the case of colo-colonic intussusception laparoscopy is a valuable diagnostic aid and can facilitate the later processing. CONCLUSION: The intestinal invaginations diagnosis can often be difficult. Laparoscopy is safe and effective in the diagnosis and treatment of adult intussusception.

Laparoscopic repair of perforated peptic ulcer: single-center results.

BACKGROUND: Perforated peptic ulcer (PPU), the most common indication for emergency gastric surgery, is associated with high morbidity and mortality rates. Outcomes might be improved by performing this procedure laparoscopically, but no consensus exists on whether the benefits of laparoscopic repair (LR) of PPU outweigh the disadvantages. METHODS: From January 2002 to December 2012, 111 patients underwent surgery for perforated ulcer. A "laparoscopy-first" policy was attempted and then applied for 56 patients. The exclusion criteria for LR ruled out patients who had shock at admission, severe cardiorespiratory comorbidities, or a history of supramesocolic surgery. The aim of this study was a retrospective analysis of the 56 patients treated laparoscopically. RESULTS: The patient distribution was 30 men and 26 women, who had a mean age of 59 years (range 19-95 years). The mean ulcer size was 10 mm, and the Mannheim peritonitis index (MPI) was 21. LR was performed for 39 (69.6%) of the 56 patients and included peritoneal lavage, suturing of the perforation, and omental patching. Conversion to laparotomy was necessary in 17 cases (30.4%). The "conversion group" showed significant differences in ulcer size (larger ulcers: 1.9 vs. 0.7 mm; p < 0.01), ulcer-site topography (higher incidence of posterior ulcers: 5 vs. 0; p < 0.01), and MPI score (higher score: 24 vs. 20; p < 0.05). The LR group had a mean operating time of 86 min (range 50-125 min), an in-hospital morbidity rate of 7.6 %, a mortality rate of 2.5%, and a mean hospital stay of 6.7 days (range 5-12 days). None of these patients required reintervention. CONCLUSIONS: The results showed that LR for PPU is feasible with acceptable mortality and morbidity rates. Skill in laparoscopic abdominal emergencies is required. Perforations 1.5 cm or larger, posterior duodenal ulcers, and an MPI higher than 25 should be considered the main risk factors for conversion.

Gene promoter methylation in colorectal cancer and healthy adjacent mucosa specimens: correlation with physiological and pathological characteristics, and with biomarkers of one-carbon metabolism.

We evaluated the promoter methylation levels of the APC, MGMT, hMLH1, RASSF1A and CDKN2A genes in 107 colorectal cancer (CRC) samples and 80 healthy adjacent tissues. We searched for correlation with both physical and pathological features, polymorphisms of folate metabolism pathway genes (MTHFR, MTRR, MTR, RFC1, TYMS, and DNMT3B), and data on circulating folate, vitamin B12 and homocysteine, which were available in a subgroup of the CRC patients. An increased number of methylated samples were found in CRC respect to adjacent healthy tissues, with the exception of APC, which was also frequently methylated in healthy colonic mucosa. Statistically significant associations were found between RASSF1A promoter methylation and tumor stage, and between hMLH1 promoter methylation and tumor location. Increasing age positively correlated with both hMLH1 and MGMT methylation levels in CRC tissues, and with APC methylation levels in the adjacent healthy mucosa. Concerning gender, females showed higher hMLH1 promoter methylation levels with respect to males. In CRC samples, the MTR 2756AG genotype correlated with higher methylation levels of RASSF1A, and the TYMS 1494 6bp ins/del polymorphism correlated with the methylation levels of both APC and hMLH1. In adjacent healthy tissues, MTR 2756AG and TYMS 1494 6bp del/del genotypes correlated with APC and MGMT promoter methylation, respectively. Low folate levels were associated with hMLH1 hypermethylation. Present results support the hypothesis that DNA methylation in CRC depends from both physiological and environmental factors, with one-carbon metabolism largely involved in this process.

Mesoappendix and appendix stump treatment in laparoscopic appendectomy: a retrospective study in 1084 patients.

BACKGROUND: Laparoscopic appendicectomy (LA) rapresents a standard but questionable approach in the treatment of acute appendicitis. The scope of this study is to show our experience using different methods in the mesoappendix and appendix stump treatment. MATERIALS AND METHODS: A retrospective analysis of all patient with acute appendicitis that underwent to LA was obtained. The results have been analysed compareing the single techniques used in the treatment of mesoappendix and appendix stump. RESULTS: The study included 1084 patients (M=648; F=436; mean age 28,4 years). During laparoscopic procedure we have founded in 296 cases a CAA (27.3%). The rate of conversion to open has resulted 3,2%; the mean operative time was 57,1'; mean postoperative stay was 2,7 days. Eighteen patients have experienced surgical complications. From our data, in the treatment of mesoappendix (Clip =863, bipolar coagulation = 165, stapler = 22) and the appendix stump (endoloop =784; stapler = 265) we found no statistically difference about postoperative stay, and incidence of IAA; the operative time was longer (54,2 vs 66' p<0.05) when the surgeon prefered stapling the appendix stump; but in this group there was a higher incidence of CAA (35.2 % vs 18.7%). CONCLUSIONS: Laparoscopic appendicectomy is safe and effective. We judge that there isn't a better technique than others but various options that should be evaluated taking care about costs, the experience of the surgeon and the degree of inflammation of the appendix.

Uncommon cause of acute abdomen: volvulus of gallbladder with necrosis. Case report and review of literature.

Gallbladder volvulus is a rare condition which can mimic an acute cholecystitis. This condition is characterized from a rotation of the gallbladder on its mesentery along the axis of the cystic duct and cystic artery. Preoperative diagnosis is difficult. This is an acute surgical emergency that must be treated with immediate detorsion and cholecystectomy. We report a case of acute gallbladder torsion in an elderly man and review the clinical aspects of the disease in the context of the available literature.

Oncologic colon cancer resection in emergency: are we doing enough?

BACKGROUND: The primary challenge of surgery for colon cancer (CC) presenting as an emergency is the control of the complication but a proper oncologic technique should not be missed when bowel resection is feasible. Currently, recommended oncologic criteria include en-bloc resection of invaded organs and structures, an adequate extent of the bowel resection and of the free margins and an adequate number of lymph nodes yielded. METHODS: Chart-review of 499 CC patients undergone colectomy. One hundred and twenty-one (group A) presented as emergencies (obstruction n=85, perforation n=30, hemorrhage n=6) and were analyzed for tumor stage, need for enlarged resection, distal free margin, lymph node yield, mortality and morbidity. Results were compared with those observed in the 378 patients operated electively (group B). RESULTS: Group A patients had a more advanced cancer stage (stage III/IV 62.8% vs. 48.7%, p<.01), but the need for enlarged resection was not significantly different in the two groups. Also the length of free distal margin was similar (means, group A: 97 mm; group B: 84 mm, p=ns). The number of excised nodes was greater in emergency (means, group A: 26.2 nodes; group B: 20.8 nodes, p<.01). Compared with group B, emergency procedures resulted in higher morbidity (22.3% vs. 13.4%, p<.05) and mortality (8.2% vs. .8%, p<.0001). CONCLUSIONS: Recommended oncologic resection techniques may be applicable to surgery for complicated tumors of the colon and radical resection may be warranted by emergency colectomy. The worse long-term prognosis for patients with colonic cancer presenting acutely may be related to the stage of the disease rather than to the failure of surgery.

Gastrointestinal stromal tumour of the duodenum in childhood: a rare case report.

BACKGROUND: Gastrointestinal stromal tumours (GISTs) are uncommon primary mesenchymal tumours of the gastrointestinal tract mostly observed in the adults. Duodenal GISTs are relatively rare in adults and it should be regarded as exceptional in childhood. In young patients duodenal GISTs may be a source of potentially lethal haemorrhage and this adds diagnostic and therapeutic dilemmas to the concern about the long-term outcome. CASE PRESENTATION: A 14-year-old boy was referred to our hospital with severe anaemia due to recurrent episodes of upper gastrointestinal haemorrhage. Endoscopy, small bowel series, scintigraphy and video capsule endoscopy previously done elsewhere were negative. Shortly after the admission, the patient underwent emergency surgery for severe recurrence of the bleeding. At surgery, a 4 cm solid mass arising from the wall of the fourth portion of the duodenum was identified. The invasion and the erosion of the duodenal mucosa was confirmed by intra-operative pushed duodenoscopy. The mass was resected by a full-thickness duodenal wall excision with adequate grossly free margins. Immunohistochemical analysis of the specimen revealed to be positive for CD117 (c-KIT protein) consistent with a diagnosis of GIST. The number of mitoses was < 5/50 HPF. Mutational analysis for c-KIT/PDGFRA tyrosine kinase receptor genes resulted in a wildtype pattern. The patient had an uneventful course and he has remained disease-free during two years of follow-up. CONCLUSION: Duodenal GISTs in children are very rare and may present with massive bleeding. Cure can be achieved by complete surgical resection, but even in the low-aggressive tumours the long-term outcome may be unpredictable.

[Simultaneous laparoscopic treatment for common bile duct stones associated with acute cholecystitis. Results of a prospective study]. / Trattamento laparoscopico simultaneo per coledocolitiasi associata a colecistite acuta. Risultati di uno studio prospettico.

Laparoscopy for the management of acute cholecystitis has gained wide acceptance. Although it is well known that acute cholecystitis may be complicated by common bile duct stones in up to 15% of cases, to date there are no published studies addressing the management of common bile duct stones detected during laparoscopy for acute cholecystitis. We postulated that, when found, common bile duct stones associated with acute cholecystitis could be effectively and safety managed during the same laparoscopic procedure. We report on a five-year prospective study (2001-2005) involving 313 unselected patients who presented with a clinical diagnosis of acute cholecystitis (confirmed by specimen examination) and without any contraindication to laparoscopy. At surgery, transcystic cholangiograms were obtained in 289 (92%); the other 24 were excluded from the study. With an established diagnosis of common bile duct stones, attempts were made to clear the common bile duct by transcystic basket retrieval, ERCP or choledochotomy. Prevalence of common bile duct stones in acute cholecystitis, success of laparoscopic common duct clearance, conversion rate, operative time, morbidity, and postoperative hospital stay were the main outcome measures. Common bile duct stones were found in 63 pts (21.7%) presenting with acute cholecystitis. At laparoscopy, 12 patients (19%) required conversion to open surgery, 3 of these being due to failure to achieve common bile duct clearance. Common bile duct stones were cleared entirely laparoscopically in 51 patients (81%) by means of transcystic stone retrieval (38 pts, 75%), ERCP (12 pts, 23%) or choledocotomy (1 pt, 2%). At intention to treat analysis, patients undergoing cholecystectomy plus common bile duct clearance compared to those undergoing cholecystectomy alone, spent significantly more time in the operating theatre (mean 192 min vs 118 min, p < 0.001), needed open conversion more frequently (19% vs 6.1%, p = 0.0045), and had a higher overall morbidity rate (17.4% vs 4.4%, p = 0.015). The simultaneous procedure also adversely affected the postoperative hospital stay (mean 4.8 vs 3.4 days, p = 0.0164). Mortality was nil in both groups. The prevalence of common bile duct stones in patients presenting with acute cholecystitis should not be neglected. When common bile duct stones are found, clearance may be obtained laparoscopically in a substantial number of cases without any need for open surgery. The simultaneous laparoscopic approach for acute cholecystitis and common bile duct stones remains, however, a highly skilled and technically demanding procedure. Although a moderate incidence of drawbacks is observed, the results should be interpreted from the point of view of an all-in-one procedure that allows the patients to be cured without needing any further sequential interventions.

Giant aneurysm of the splenic artery in an elderly man short report and review of the literature.

UNLABELLED: Splenic Artery Aneurysms (SAAs) are usually single and small lesions, and their size rarely exceed 3 cm. In a review of the literature from 1950 to date, only 18 aneurysms defined as "giant" were found in 15 reported papers. CASE REPORT: A case of an 87-year-old man, successfully treated for a 7 cm wide aneurysm of the splenic artery is reported. Except for his age, the patient did not show any significant association with aneurysm-related diseases and was successfully submitted to en-bloc aneurysmectomy and splenectomy via open surgery.