Endoscopic transluminal pancreatic necrosectomy using a self-expanding metal stent and high-flow water-jet system.

Walled-off pancreatic necrosis and a pancreatic abscess are the most severe complications of acute pancreatitis. Surgery in such critically ill patients is often associated with significant morbidity and mortality within the first few weeks after the onset of symptoms. Minimal invasive approaches with high success and low mortality rates are therefore of considerable interest. Endoscopic therapy has the potential to offer safe and effective alternative treatment. We report here on 3 consecutive patients with infected walled-off pancreatic necrosis and 1 patient with a pancreatic abscess who underwent direct endoscopic necrosectomy 19-21 d after the onset of acute pancreatitis. The infected pancreatic necrosis or abscess was punctured transluminally with a cystostome and, after balloon dilatation, a non-covered self-expanding biliary metal stent was placed into the necrotic cavity. Following stent deployment, a nasobiliary pigtail catheter was placed into the cavity to ensure continuous irrigation. After 5-7 d, the metal stent was removed endoscopically and the necrotic cavity was entered with a therapeutic gastroscope. Endoscopic debridement was performed via the simultaneous application of a high-flow water-jet system; using a flush knife, a Dormia basket, and hot biopsy forceps. The transluminal endotherapy was repeated 2-5 times daily during the next 10 d. Supportive care included parenteral antibiotics and jejunal feeding. All patients improved dramatically and with resolution of their septic conditions; 3 patients were completely cured without any further complications or the need for surgery. One patient died from a complication of prolonged ventilation severe bilateral pneumonia, not related to the endoscopic procedure. No procedure related complications were observed. Transluminal endoscopic necrosectomy with temporary application of a self-expanding metal stent and a high-flow water-jet system shows promise for enhancing the potential of this endoscopic approach in patients with walled-off pancreatic necrosis and/or a pancreatic abscess.

Feasibility and safety of emergency ERCP and small-caliber pancreatic stenting as a bridging procedure in patients with acute biliary pancreatitis but difficult sphincterotomy.

BACKGROUND: The aims of the present study were: (1) to assess the feasibility and safety of emergency endoscopic retrograde cholangiopancreatography (ERCP) and pancreatic duct (PD) stenting with small-caliber stents as a bridging procedure in acute biliary pancreatitis (ABP) patients in whom biliary endoscopic sphincterotomy (EST) proved difficult, failed or was contraindicated, and (2) to compare the clinical outcome of those patients having emergency ERCP with and without pancreatic stent. METHOD: Eighty-seven consecutive patients with ABP were referred for emergency ERCP. In 60 of these ABP patients, ERCP, EST, and stone extraction (if necessary) were performed without PD stenting. In the remaining 27 patients, small-caliber (3-5 F, 4 cm) pancreatic stent insertion was initially applied. All patients were hospitalized for medical therapy and were followed up. RESULTS: The mean ages, the initial symptom-to-ERCP times, the Glasgow severity scores, and the peak amylase and CRP levels at initial presentation were not significantly different in the ERCP + EST with PD stent group versus the ERCP + EST without PD stent group. More importantly, the complication rate was significantly lower in the ERCP + EST with PD stent group versus the ERCP + EST without PD stent group (7.4% vs. 25%); while the mortality rates (0% vs. 6.7%) were comparable, reasonably low, and demonstrated no statistically significant differences. CONCLUSIONS: Temporary PD stenting with small-caliber stents is a safe and effective procedure that may afford sufficient PD decompression to reverse the process of ABP and serve as a bridging procedure in severe ABP in patients with failed, complicated, or contraindicated biliary EST.

Prophylactic pancreas stenting followed by needle-knife fistulotomy in patients with sphincter of Oddi dysfunction and difficult cannulation: new method to prevent post-ERCP pancreatitis.

INTRODUCTION: The aim of the present study was to reduce post-endoscopic retrograde cholangiopancreatography (ERCP) complications with a combination of early needle-knife access fistulotomy and prophylactic pancreatic stenting in selected high-risk sphincter of Oddi dysfunction (SOD) patients with difficult cannulation. METHODS: Prophylactic pancreatic stent insertion was attempted in 22 consecutive patients with definite SOD and difficult cannulation. After 10 min of failed selective common bile duct cannulation, but repeated (>5x) pancreatic duct contrast filling, a prophylactic small calibre (3-5 Fr) pancreatic stent was inserted, followed by fistulotomy with a standard needle-knife, then a standard complete biliary sphincterotomy followed. The success and complication rates were compared retrospectively with a cohort of 35 patients, in which we persisted with the application of standard methods of cannulation without pre-cutting methods. RESULTS: Prophylactic pancreatic stenting followed by needle-knife fistulotomy was successfully carried out in all 22 consecutive patients, and selective biliary cannulation and complete endoscopic sphincterotomy were achieved in all but two cases. In this group, not a single case of post-ERCP pancreatitis was observed, in contrast with a control group of three mild, 10 moderate and two severe post-ERCP pancreatitis cases. The frequency of post-ERCP pancreatitis was significantly different: 0% versus 43%, as were the post-procedure (24 h mean) amylase levels: 206 U/L versus 1959 U/L, respectively. CONCLUSIONS: In selected, high-risk, SOD patients, early, prophylactic pancreas stent insertion followed by needle-knife fistulotomy seems a safe and effective procedure with no or only minimal risk of post-ERCP pancreatitis. However, prospective, randomized studies are awaited to lend to support to our approach.

Somatosensory hypersensitivity in the referred pain area in patients with chronic biliary pain and a sphincter of Oddi dysfunction: new aspects of an almost forgotten pathogenetic mechanism.

BACKGROUND AND AIMS: Somatosensory hyperalgesia in the referred pain area (RPA) in patients with acute or chronic abdominal pain syndromes may result from the convergence of nerve fibers from visceral and somatic tissues at the spinal and supraspinal levels. Chronic biliary pain in patients with the postcholecystectomy syndrome (i.e., biliary hypersensitivity) may be explained by persistent hyperexcitability of neurons in the central nervous system (CNS). The aim of this study was to evaluate the cutaneous neural sensory perception in the RPA in patients with chronic postcholecystectomy biliary pain and a sphincter of Oddi (SO) dysfunction (SOD). METHODS: Forty-two patients with persistent biliary pain and suspected SOD, 27 age-matched healthy volunteers, and 18 age-matched asymptomatic cholecystectomized controls were prospectively investigated by quantitative sensory testing (Neurometer CPT). The biliary symptoms and the severity of pain were classified on a visual analog pain severity scale system via a previously validated and standardized questionnaire. The patients helped the doctors locate the RPA in the right upper quadrant. The sensory detection threshold was determined noninvasively (Neurometer CPT) with transcutaneous electrical stimulation at 5, 250, and 2,000 Hz, and different current intensities (range from 0.01 to 9.99 mA) applied in a single (patient) blinded method. These three frequencies selectively excite small unmyelinated (C fibers), small myelinated (A-delta), and large myelinated (A-beta) fibers, which transmit dull pain, sharp pain, and touch, respectively. The contralateral region of the abdomen left upper quadrant served as the control area. The sensory current perception threshold ratio (SCPTR) of the data measured in the contralateral area and the RPA was calculated. RESULTS: The SCPTRs in the definite SOD patients with biliary pain, healthy volunteers, the asymptomatic cholecystectomized controls, and the symptomatic cholecystectomized patients but without SOD were 2.32 +/- 1.4 versus 1.06 +/- 0.24 versus 0.97 +/- 0.16 versus 0.83 +/- 0.35 at 2,000 Hz; 2.19 +/- 1.0 versus 1.01 +/- 0.26 versus 1.02 +/- 0.25 versus 0.88 +/- 0.35 at 250 Hz; and 2.19 +/- 1.1 versus 1.12 +/- 0.26 versus 0.99 +/- 0.37 versus 0.84 +/- 0.32 at 5 Hz, respectively. Significant hypersensitivity was detected in the RPA at different stimulation frequencies in the SOD patients with biliary pain versus the cholecystectomized controls: at 5 Hz: P = 0.00001; at 250 Hz: P = 0.00001; and at 2,000 Hz: P = 0.0001, respectively. CONCLUSION: Continuous visceral pain (biliary pain) caused by local inflammatory/sensitizing processes or a CNS malfunction could lead to significant hypersensitivity of the peripheral nociceptive nerve fibers in SOD patients. Postcholecystectomy pain may be explained by persistent hyperexcitability of the nociceptive neurons in the CNS with or without objective motility disorders of the SO.

[Celiac artery compression syndrome--stepchild of abdominal angina?]. / A truncus coeliacus kompressziós szindróma--a hasi angina "mostohagyermeke"?

BACKGROUND: Celiac trunk compression in few percentages of the cases can cause chronic abdominal pain that shows no connection with eating. CASE REPORT: Detailed preoperative examinations showed significant, segmental stenosis of the celiac trunk, caused by outer compression of a tendonous arc of diaphragm, in the background of abdominal pain and mesenteric ischemia of a 58-year-old woman. After preparation we have executed the surgery by removing a tight ring, located at around 8-10 mm from the origin of trifurcation, and a part of the celiac ganglion. The patient was dismissed from our hospital 6 days after surgery in good general condition. DISCUSSION: The abdominal pain can normally be the consequence of mesenteric ischemia. The root cause in most of the cases is the alteration of the particular artery. The outer compression is normally responsible only for a few percentages of the cases. In our case the problem was caused by a stronger tendonous part of the aortic hiatus. The first sign of this during the examination was a recognisable noise over the artery, which was caused by the poststenotic turbulent flow. Detailed radiological examinations executed based on this indeed proved this malfunction. CONCLUSION: In case of unidentified abdominal pain we have to consider the possibility of the stenosis of the celiac trunk. By our case study we would like to call the attention to the importance of the auscultation over the abdomen, which is a relevant part of the basic physical examinations. When getting to the final diagnosis, apart from the duplex doppler sonography, we also used the results of angiography. The essence of the surgery was to get rid of the outer compression of the artery, which has to be done as soon as possible in order to avoid that compression causes degeneration of the artery itself.

[Carcinoid tumor of the papilla of Vater]. / Vater papilla carcinoid.

Carcinoid tumor of the papilla of Vater is extreme rare. Only 73 cases have been reported in the world literature to date and only 1 case in Hungary. This tumor differs clinically and has a different prognosis from other carcinoid tumors of the gastrointestinal tract as it is more aggressive. The clinical feature is determined by the expansion and infiltrative nature of the tumor. Endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic biopsy (EB) are the most accurate methods of diagnosis, while endoscopic ultrasonography (EUS) is the most important method to decide the surgical strategy. Depending on the tumor size and the grade of invasion of other structures surgical treatment can be local excision or radical resection. We present a 67-year-old female patient with obstructive jaundice, caused by carcinoid tumor of the papilla of Vater. Diagnosis was obtained by ERCP and EB. Because of the signs of local invasion emerging on EUS a pylorus preserving pancreatoduodenectomy was performed. Six months after the operation there is no evidence of recurrence.

[Organization and coordination of long-term total parenteral nutrition at home in the course of rehabilitation]. / Hosszan tartó otthoni teljes parenterális táplálás megszervezése, koordinálása a rehabilitáció során.

UNLABELLED: At the rehabilitation hospital of Visegrád between 1996-2003 there were altogether 7 patients suffering from short bowel syndrome, 6 of them in the last 2 years. The purpose of this study is to demonstrate 2 cases of long-term total parental nutrition. One of the patients is a 60 year-old man, in whom gut resection has been performed because of acute arteria mesenterica superior occlusion. After gut resection 10 cm jejunum, a half colon transversum and the colon descendent were left. The central total parenteral nutrition has been going on for 365 days, for the last 255 days it has been performed at home: 2000 ml/day all-in-one nutrition solution + 500 ml oral high-fibre food preparation. At the beginning of the total parenteral nutrition the patient's weight was 64.5 kg (BMI: 23.5 kg/m2) which decreased to 51.5 kg (BMI: 18.5 kg/m2) owing to the reduction of the TPN to 1200 ml/day. This weight has been kept since then and the quality of life is satisfactory. Complication: increase of liver enzymes (GGT, ALP). The other patient is 48 years old with gut resection owing to art. mes. thrombosis. After gut resection 20 cm jejunum and the left side colon were left. The parenteral nutrition has been going on for 352 days (30 days were spent at home): 2000 ml all-in-one nutrition solution (the high-fibre oral nutrition solution was not tolerated in this case). The patient's weight is 54.5 kg (BMI: 18.33 kg/m2), ALP and GGT are getting back to normal. COMPLICATIONS: central venous tube sepsis which made it necessary to change the tube on several occasions.