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Biomedical subjects

M Uravić

Publications and source records attributed to M Uravić.

17 recordsLinked to original sources

Crohn's disease and a gastrointestinal stromal tumor in an 81-year-old man--a rare coincidence.

We describe an 81-year old man presenting with ileus and two rare, pathologically distinct entities: gastrointestinal stromal tumor (GIST) and Crohn's disease. Within Meckel's diverticulum a polypous tumor, 3 cm in diameter, with preserved lumen was found. In the area of the terminal ileum, coecum and colon ascendens inflamed bowel loops were fixed together with fibrous adhesions. Partial resection of the ileum with end-to-end anastomosis and right hemicolectomy with resection of the terminal ileum and end-to-end ileotransverse anastomosis were performed. Pathohistological and immunohistochemical examination revealed the polypous tumor as GIST. Changes in terminal ileum, coecum and colon ascendens were referred as Crohn's disease. Although adenocarcinoma is well known in chronic, long-standing inflammatory bowel disease, other primary intestinal tumors are rare in those patients. Furthermore, Crohn's disease can be a part of differential diagnosis of ileus, also in such an old man.

Aged, 80 and over↗

[Transhiatal esophagectomy for carcinoma of the esophagus--our ten years experience].

During the past 10 years, at University Surgical Clinic Rijeka, 107 patients underwent operation for carcinoma of the esophagus and cardia. Transhiatal esophagectomy was performed in 29 patients; in 28 of them an esophagogastrostomy was performed, and in one patient a pharingogastrostomy. Of the 29 patients, there were 24 men (82.8 %) and 5 women (17.2 %), with an average age of 60.7 years. Histologically, 26 lesions (89.7 %) were squamous cell carcinomas, and 3 (10.3 %) were adenocarcinomas. According to the prognostic stage as defined by the UICC, 15 patients (51.7 %) were stage II A, and 14 (48.3 %) stage III. The lesion was located in the cervical esophagus in two, the thoracic esophagus in thirteen and the lower esophagus in fourteen patients. Six patients died, for a hospital mortality rate of 20.7 %; the most common cause of death was respiratory failure. Pulmonary complications occurred in 14 patients (48.3 %). Anastomotic leak with all clinical manifestations occurred in one patient, while in two patients the radiological diagnosis of anastomotic leakage was made without clinical manifestations. Five patients (17.2 %) developed anastomotic stenosis, which was satisfactory treated by endoscopic dilatation. Mean survival after surgery was 21 months. One-year survival was 65.5 %, two and three-year survival was 37.9 and 17.2 % respectively. Younger patients and patients with lower stage of disease survived significantly longer (p < 0.05).

Adenocarcinoma↗

[Portasystemic shunt--our twenty years experience].

OBJECTIVE: It was the aim of this study to demonstrate our experiences over twenty years with portasystemic shunt surgery in patients with chronic liver disease and variceal bleeding. PATIENTS AND METHODS: From January 1 st, 1980 to December 31 st, 2000 we performed 90 portasystemic shunt operations (PSO). The patients were divided in two groups. The patients of the first group were operated upon between 1980-1988 (n = 58), patients of the second group (n = 32) between 1988-1998. Both groups did not differ in age, gender and cause of hepatic disease. In the first group the most performed type of shunt was the portacaval shunt, in group II the splenorenal shunt. RESULTS: We observed an improved early and late mortality rate, encephalopathy rate and reduction of recurrent variceal bleeding in the second group: the early mortality rate decreased from 16 to 9 % (p < 0.01), the late mortality rate from 35 to 6 % (p < 0.05), the encephalopathy rate from 43 to 12 % and the variceal rebleeding rate from 10 to 6 %. CONCLUSION: Selective shunts, such as the distal splenorenal shunt are significantly superior to the standard (end-to-side or side-to-side) portasystemic shunt. In countries where acute treatment of recurrent variceal hemorrhage with sclerotherapy is not available in remote areas or in countries where transplantation procedures are in the very beginning and where TIPPS operations are too expensive, portasystemic shunt operations are the only possibility to save the patients life when sclerotherapy fails.

Adolescent↗

Congenital choledochal cysts in adults--comparative study.

Congenital choledochal cysts are rare anomalies of the biliary tree and their presentation in adults is infrequent. They are more common in Asia. Females are more commonly affected. Surgery remains the treatment of choice. Nine patients were operated for congenital choledochal cysts in the last fifteen years, i.e. from 1988 to 2002. The diagnosis was established by case history, clinical features and laboratory tests. The imaging methods proved to be the most informative among them. Classification of the choledochal cysts was based on modified Todani classification. All patients have undergone cyst excision with Roux-en-Y hepaticojejunostomy. The complications, like recurrent cholangitis or pancreatitis, were avoided.

Adult↗

Influence on gallbladder volume of early postoperative gastric supply of nutrients.

BACKGROUND & AIM: The gallbladder volume is a predictor of biliary stasis and the formation of biliary sludge. Biliary stasis and sludge have been recently recognized as the precursors of acute acalculous cholecystitis, as well as 'idiopathic' postoperative pancreatitis, rare but very serious complications after surgery. The aim of the study was to establish how early postoperative gastric supply of nutrients affects the gallbladder volume in patients after noncardiac and cardiac surgery. METHODS: In the two prospective, randomized studies 40 patients (study I-noncardiac surgery) treated at surgical ICU after major elective extrahepatobiliary and extragastrointestinal surgeries (7 thoracic, 19 vascular, 14 urological) and 40 patients (study II-cardiac surgery) treated at cardiosurgical ICU after CABG surgery were analyzed. In both studies the patients were divided into two groups: control group C (study I: 20 patients, age 45+/-18 yrs, male 65%; study II: 20 patients age 58+/-7 yrs, male 60%) and group E (group of early postoperative gastric supply of nutrients) (study I: 20 patients, age 52+/-17 yrs, male 50%; study II: 20 patients; age 59+/-8 yrs, male 65%). For the first 24 hours the patients in group C received only crystalloid solutions and the gallbladder volume was verified 24 hours after the surgery. In group E, postoperative gastric supply of nutrients began 18 hours after surgery (Osmolite, Ross; first 3 hours 30 ml/h and second 3 hours 50 ml/h; total 240 ml after 6 hours). In all patients sonographic measurement of gallbladder volume was performed immediately before surgery and 6 hours after the start of feeding (24 hours after surgery). The measurement was done with ultrasonographic scanner Hitachi 405 EUB (convex probe 3.5-5MHz) by the same specialist, and the volume was calculated using the ellipsoid method. RESULTS: The gallbladder volume measured by ultrasonography 24 hours after surgery in study I (noncardiac surgery) in group E amounted to 43+/-25 ml while in control group C it was significantly higher, i.e. 67+/-30 ml (P<0.05). In study II (cardiac surgery) in group E gallbladder volume amounted to 59+/-15 ml while in control group C it was also significantly higher, i.e. 71+/-11 ml (P<0.05). CONCLUSION: An early postoperative gastric supply of nutrients after both noncardiac and cardiac adult surgery diminishes the volume and probably stimulates the motility of the gallbladder, thus preventing biliary stasis and the formation of biliary sludge.

Adult↗

Colorectal war injuries.

During the war in Croatia (1991-1995), 851 war casualties were treated by the surgical teams of Rijeka Clinical Hospital. Among them, 66 patients (7.8%) had colon and/or rectum injuries, usually combined with trauma of other abdominal organs, most often jejunum and ileum (24.2%). Regarding the site of injury, right and sigmoid colon were the most frequently traumatized areas (30.3% and 31.8%, respectively). All patients received surgical treatment within 3 hours from wounding. In 89% of patients, relieving colostomy was formed after the resection of the damaged part of the intestine; 11% of patients were treated with primary resection or sutures without colostomy. The mortality rate of 3% (2 patients) was caused by mutilating multiple organ abdominal trauma combined with massive brain injury.

Adult↗

Organ transplantation at the Rijeka Clinical Medical Center--from kidney to pancreas.

From January 1971 to January 1994 the authors performed 560 kidney, and two simultaneous pancreas and kidney, transplantations at the Rijeka Clinical Medical Center. Three hundred and nine kidneys (55%) were from a related living donor (two from unrelated living donors), while 253 (45%) kidney and two pancreas grafts were from cadaveric donors. Analyzing the mean patients' age at the time of transplantation the authors noticed its steady increase over five-year periods, a decrease of chronic glomerulonephritis from 76% to 60%, and a gradual increase in diabetic nephropathy from 0 to 6%. Cumulative 1- and 5-year patient survival rates after living donor transplants including conventional immunosuppression were 95 and 83%, respectively; with Cs the survival rates were 94% and 90% (N. S.). For living donor kidney grafts the 1- and 5-year survival rates with conventional immunosuppression were 76% and 50%, respectively. With Cs the survival rates were considerably higher: 88% after 1 year and 71% after 5 years (p < 0.01). Cumulative survival rates of patients with cadaveric transplants receiving conventional immunosuppression were 82% and 71%, respectively; with Cs they were 87% and 78% (N.S.). The survival rate of cadaveric transplants was 51% after one year and 38% after five years in the first period, but it improved significantly after introduction of Cs. increasing to 81% and 52%, respectively (p < 0.001). Renal transplantation in diabetics does not preclude the recurrence of diabetic nephropathy in the graft; successful pancreas and kidney transplantation does, however, and thus offers the patient a better quality of life.

Adult↗

[Reoperation after kidney transplantation].

On Surgical Clinic KBC and Medical faculty at Rijeka in the period from 30.01.1971 to 30.03.1988 403 kidney transplantations were performed. There were 257 (63.8%) transplant from living related donor, 2 (0.5%) from living nonrelated donor and 144 (35.7%) from cadaver. On 90 patients 104 reinterventions were performed. There were 29 reinterventions in 24 patients because of vascular complications. 14 patients lost their graft, and two patients died because of sepsis and liver failure. Among 140 patients with uretero-ureteral anastomoses 18 reinterventions were performed in 16 patients, patients lost the graft. In the group of 271 patients with ureterocystoneostomia there were 18 reinterventions in 17 patients. One patient died because of pulmonary emboli on the first postoperative day. Wound infections were surgically treated 39 times in 33 patients. 3 grafts were lost because of acute rupture, and one patient died in haemorrhagic shock. The complications after kidney transplantation should be recognized as soon as possible and if it is necessary to start surgical reintervention immediately.

Graft Rejection↗

[Emergency surgical conditions after kidney transplantation].

During the period from 30. 01. 1971 to 30. 03. 1988 403 kidney transplantations were performed on the Surgical clinic KBC and Medical faculty at Rijeka. Satisfactory results were achieved concerning surviving of patients and grafts. Emergency vascular complications leads to lost of graft in most cases. Urologic complications less affecting the graft but because of possible infection could jeopardize the life of patient. In the surgical treatment of urological complications recipient ureter was used in most cases and in two patients isolated ileal loop. Among gastrointestinal complications bleeding from gastroduodenal ulcer was the major problem. After onset of routine use of antagonists of histamine H2 receptors those complications has been reduced from 6.6% to 1.5%. In five patients a spontaneous rupture of graft has happened. In two patients direct suture of rupture saved the graft. All our activities with the patients after kidney transplantation should be in careful treatment and early recognition of complications and aggressive surgical approach when it is necessary.

Acute Disease↗

Duodenal obstruction from chronic pancreatitis.

The fibrosclerosing process of the pancreas in the chronic pancreatitis may constrict not only the pancreatic duct but also the bile duct, splenoportal venous system and duodenum. In our retrospective study we analysed 24 patients with duodenal obstruction associated with chronic pancreatitis. Duodenal obstruction was suspected whenever repeated vomiting occurred or large volumes of nasogastric aspirate were obtained. The diagnosis was confirmed by barium meal and endoscopic examination. Duodenal obstruction was relieved by gastrojejunostomy in eight patients, gastrojejunostomy and vagotomy in eight patients, gastroduodenostomy and vagotomy in two patients, vagotomy with Finney pyloroplasty in one patient, duodenoplasty with vagotomy in one patient and Whipple procedure in four patients. We concluded that vagotomy and gastroenterostomy are the procedures of choice. Bypass surgery is helpful to relieve the obstruction of the common bile duct and pancreatic duct. Whipple procedure should be reserved for the small duct form of chronic pancreatitis and for the cases in which there is high suspicion of malignancy.

Adult↗