Georgios Polymeneas

Enteroatmospheric fistulae--gastrointestinal openings in the open abdomen: a review and recent proposal of a surgical technique.

The occurrence of an enteric fistula in the middle of an open abdomen is called an enteroatmospheric fistula, which is the most challenging and feared complication for a surgeon to deal with. It is in fact not a true fistula because it neither has a fistula tract nor is covered by a well-vascularized tissue. The mortality of enteroatmospheric fistulae was as high as 70% in past decades but is currently approximately 40% due to advanced modern intensive care and improved surgical techniques. Management of patients with an open abdomen and an enteroatmospheric fistula is very challenging. Intensive care support of organs and systems is vital in order to manage the severely septic patient and the associated multiple organ failure syndrome. Many of the principles applied to classic enterocutaneous fistulae are used as well. Control of enteric spillage, attempts to seal the fistula, and techniques of peritoneal access for excision of the involved loop are reviewed in this report. Additionally, we describe our recent proposal of a lateral surgical approach via the circumference of the open abdomen in order to avoid the hostile and granulated surface of the abdominal trauma, which is adhered to the intraperitoneal organs.

Is the Routine Use of Drainage After Elective Laparoscopic Cholecystectomy Justified? A Randomized Trial

BACKGROUND Laparoscopic cholecystectomy (LC) is the gold standard for the surgical treatment of cholelithiasis. However, the use of drainage after elective LC in literature remains controversial. METHODS A randomized study was performed in Larnaka General Hospital. The purpose of the study was to evaluate drainage of the gallbladder bed after elective LC. One hundred sixteen patients were randomly allocated in two groups, sustained an uneventful LC, and were included in the study after an informed consent was obtained. Sixty-three patients were included in drainage group (YD) and 53 patients in nondrainage group (ND). Drain tubes, made of polyethylene, were placed at the end of the procedure in the patients of YD group. Postoperative pain was assessed using two scales: a 10-point visual analog scale and a 5-point verbal response scale. The two groups were evaluated and compared regarding postoperative pain, the time needed for surgery, length of postoperative hospital stay, the postoperative collection of fluid in the subhepatic space, and the incidence of postoperative complications. Chi-square and t-tests were used to evaluate the data, and statistical significance was established at P < .05. RESULTS The mean operative time in YD patients was 6.9 minutes longer compared with ND patients (P = .056). The postoperative pain was higher in the YD group by more than one point on the average in the visual analog scale both at 6 and 24 hours (P = .01 and <.001, respectively). When measured with the verbal response scale, the difference in the reported pain was very significant at 24 hours (mean level for YD 1.24 and for ND 0.75). The proportion of patients staying in hospital for >2 days was higher in the YD group: 28.6% of the patients versus 13.2% in the ND group (P = .05). Subhepatic fluid was more often observed in the YD group (47% versus 34% in the ND), but the difference was not statistically significant. There was no statistical difference in the rate of wound infections, shoulder pain, nausea, vomiting, and respiratory infections between the two groups. CONCLUSIONS Our results indicate that routine drainage of gallbladder bed after elective LC may not be justified. Drainage causes more postoperative pain, prolongs the operative time and hospital stay, increases the occurrence of fluid in the subhepatic space, and does not protect from other complications.

A tailored approach to the management of perforations following endoscopic retrograde cholangiopancreatography and sphincterotomy.

BackgroundThe management of endoscopic retrograde cholangiopancreatography (ERCP)-related perforations remains controversial. Τhe aim of the study was to determine the incidence of perforations following ERCP, their characteristics, operative and non-operative management options and clinical outcome.MethodsA retrospective review of ERCP-related perforations, during a 21-year period, was performed. Each perforation was categorized into types I to IV according to the location, mechanism and radiographic evaluation of the injury. Comparisons were made between patients treated operatively and non-operatively.ResultsForty-four perforations (0.4%) occurred in 9,880 procedures. They were mainly caused by the passage of the endoscope (type I) in 7 (16%) and sphincterotomy (type II) in 30 (68%) patients. The management was non-operative in 32 (72%) and operative in 12 patients. In multivariate analysis, only the type of perforation (type I: endoscope-related) was found significant for predicting operative treatment. The hospital stay was longer for patients requiring an operation (median, 24 vs 9 days). The overall mortality was 2/44 (4.5%). There was no death in the non-operative group.ConclusionsThe need for immediate operative intervention should be based on the type of injury and clinical findings. Patients with type I perforations should be treated surgically and primary repair should be tried. Patients with type II injuries may be treated initially non-operatively. Delayed operative intervention will be required in a minority of these patients.

Synchronous gastric adenocarcinoma and gastrointestinal stromal tumor (GIST) of the stomach: A case report

Gastrointestinal stromal tumors (GISTs) are rare mesenchymal neoplasms of the gastrointestinal tract (1%), and stomach is the most common location involved. However, the co-existence of gastric adenocarcinoma and GIST is very rare. A case of an 80-year-old male with a simultaneous presentation of a gastric adenocarcinoma and GIST is presented. Various hypotheses have been proposed in order to explain this rare simultaneous development, but even though its cause has not been proven yet.

Safety and effectiveness of outpatient laparoscopic cholecystectomy in a teaching hospital: a prospective study of 110 consecutive patients.

BackgroundThe aim of this study was to evaluate the safety and efficacy of outpatient laparoscopic cholecystectomy (OLC) in a day surgery unit in a teaching hospital. OLC was offered to patients with symptomatic cholelithiasis who met the following established inclusion criteria: ASA (American Society of Anesthesiology) physical status classification class I and II; age: 18 - 70 years; body mass index (BMI) < 30 kg/m2; patient acceptance and cooperation (informed consent); presence of a responsible adult to accompany the patient to his residency; patient residency in Athens. The primary study end-point was to evaluate success rates (patient discharge on the day of surgery), postoperative outcome (complications, re-admissions, morbidity and mortality) and patient satisfaction. A secondary endpoint was to evaluate its safe performance under appropriate supervision by higher surgical trainees (HSTs).Findings110 consecutive patients, predominantly female (71%) and ASA I (89%) with a mean age 40.6 ± 8.1 years underwent an OLC. Surgery was performed by a HST in 90 patients (81.8%). A mean postoperative pain score 3.3 (range 0-6) occurred in the majority of patients and no patient presented postoperative nausea or vomiting. Discharge on the day of surgery occurred in 95 cases (86%), while an overnight admission was required for 15 patients (14%). Re-admission following hospital discharge was necessary for 2 patients (1.8%) on day 2, due to persistent pain in the umbilical trocar site. The overall rate of major (trocar site bleeding) and minor morbidity was 15.5% (17 patients). At 1 week follow-up, 94 patients (85%) were satisfied with their experience undergoing OLC, with no difference between grades of operating surgeons.ConclusionsThis study confirmed that OLC is clinical effective and can be performed safely in a teaching hospital by supervised HSTs.

A multimodal approach to acute biliary pancreatitis during pregnancy: a case series.

The treatment of acute biliary pancreatitis during pregnancy remains controversial. We present our experience of treating 7 pregnant women with acute biliary pancreatitis and verified or suspected choledocholithiasis, by using magnetic resonance cholangiopancreatography (MRCP), endoscopic retrograde cholangiopancreatography (ERCP), and sphincterotomy followed by laparoscopic cholecystectomy. MRCP was performed in all patients to confirm the presence of common bile duct stones, their size and number. ERCP and sphincterotomy were performed without the use of radiation. The procedure was terminated only when all stones (the number clarified at MRCP), were retrieved into the duodenum. All patients underwent laparoscopic cholecystectomy the following day. Neither post-ERCP nor postoperative major complications were noted. All but one patient reached a healthy natural-term labor. One patient had a planned cesarean section on 35th week. The combination of MRCP, nonradiation ERCP, and immediate laparoscopic cholecystectomy provides definite treatment and seems to put both mother and fetus at lower risk than presumed.

A solid pseudopapillary tumor of the pancreas treated with laparoscopic distal pancreatectomy and splenectomy: a case report and review of the literature

IntroductionLaparoscopic distal pancreatectomy has been described for more than a decade now and has been considered technically feasible, safe, and with reproducible outcomes. It seems to exhibit several benefits of minimally invasive surgery and should be performed in carefully selected patients.Case presentationWe report the case of a 55-year-old Greek woman with a solid pseudopapillary tumor of the tail of the pancreas. She underwent a laparoscopic distal pancreatectomy and splenectomy. The histopathologic examination finally revealed a cystic-solid pseudopapillary neoplasm of the pancreas. Solid pseudopapillary tumors of the pancreas are rare and affect predominantly young women. These tumors are of unclear pathogenesis and low malignancy, and surgical resection offers an excellent chance for long-term survival.ConclusionThis case report indicates that in selected centers and for selected patients, laparoscopic distal pancreatectomy is feasible. The benign characteristics of these tumors make them ideal for laparoscopic excision.

Ischemia as a possible effect of increased intra-abdominal pressure on central nervous system cytokines, lactate and perfusion pressures.

IntroductionThe aims of our study were to evaluate the impact of increased intra-abdominal pressure (IAP) on central nervous system (CNS) cytokines (Interleukin 6 and tumor necrosis factor), lactate and perfusion pressures, testing the hypothesis that intra-abdominal hypertension (IAH) may possibly lead to CNS ischemia.MethodsFifteen pigs were studied. Helium pneumoperitoneum was established and IAP was increased initially at 20 mmHg and subsequently at 45 mmHg, which was finally followed by abdominal desufflation. Interleukin 6 (IL-6), tumor necrosis factor alpha (TNFa) and lactate were measured in the cerebrospinal fluid (CSF) and intracranial (ICP), intraspinal (ISP), cerebral perfusion (CPP) and spinal perfusion (SPP) pressures recorded.ResultsIncreased IAP (20 mmHg) was followed by a statistically significant increase in IL-6 (p = 0.028), lactate (p = 0.017), ICP (p < 0.001) and ISP (p = 0.001) and a significant decrease in CPP (p = 0.013) and SPP (p = 0.002). However, further increase of IAP (45 mmHg) was accompanied by an increase in mean arterial pressure due to compensatory tachycardia, followed by an increase in CPP and SPP and a decrease of cytokines and lactate.ConclusionsIAH resulted in a decrease of CPP and SPP lower than 60 mmHg and an increase of all ischemic mediators, indicating CNS ischemia; on the other hand, restoration of perfusion pressures above this threshold decreased all ischemic indicators, irrespective of the level of IAH.

Complete traumatic main pancreatic duct disruption treated endoscopically: a case report

IntroductionPancreatic injury is uncommon and the management remains controversial. The integrity of the main pancreatic duct is considered the most important determinant for prognosis.Case presentationA 19-year-old Greek man was referred to our tertiary referral centre due to blunt abdominal trauma and an associated grade III pancreatic injury. He was haemodynamically stable and his initial treatment was conservative. Due to deterioration in his clinical symptomatology he underwent an endoscopy 20 days postinjury, where a stent was placed in the proximal pancreatic duct remnant and a bulging fluid collection of the lesser sac was drained transgastrically. He made an uneventful recovery and remains well 7 months postinjury, but a stricture with upstream dilatation of his main pancreatic duct has developed.ConclusionsThe clinical status of the patient rather than the grade of pancreatic injury should be the principal determinant to guide treatment. Endoscopic stenting and drainage is an attractive minimally invasive procedure and it may obviate the need for surgery. However, further investigation is required regarding the safety and outcome.

Minimally Invasive Retroperitoneal Approach for Pancreatic Necrosectomy via a Percutaneous Drainage Tract

Aim-BackgroundInfected pancreatic necrosis (IPN) develops in approximately one third of patients with necrotizing pancreatitis (NP). In the past, open necrosectomy (ON) was the standard treatment for this condition, but it carried significant morbidity and mortality. Currently, minimally invasive procedures (MIPs) have been established for the management of IPN, decreasing the risk of complications compared with ON.MethodsA prospective study was made of patients with IPN treated by a MIP for necrosectomy via a percutaneous drainage catheter, followed by video-assisted retroperitoneal debridement (VARD).ResultsBetween 2013 and 2016, 3 consecutive patients, with a mean age of 58 years, underwent a MIP for the management of IPN. All 3 patients had left lateral retroperitoneal pockets of necrosis, and the first-line procedure consisted of placement of a pigtail catheter. The drain tract was subsequently used to carry out VARD. None of the patients presented major postoperative complications or required re-intervention.ConclusionThe management of IPN has shifted away from ON, which was associated with high morbidity, towards less invasive techniques. MIPs should be used initially as the surgical treatment of choice in most cases. When this is not feasible, or when the MIP is not successful, ON should be implemented.