[Prevention and therapy of critical ischemia in hemodialyzed patients]. / Prevenzione e terapia dell'ischemia critica nell'uremico in terapia dialitica.

The cardiovascular disease is largely increased in chronic renal failure and the patients have a 10-20 times higher mortality respect normal population. Besides habitual risk-factors they add the mineral metabolism alterations, iperomocisteine and chronical vessel flogosis. In these patients the vascular disease is often lately diagnosed, but early diagnosis would be extremely important to establish appropriate pharmacologic or surgical treatment (PTA or by pass). The basic diagnostic methods are still digital angiography, angio-NMR or angio-CT. In our experience appears that dialysed patients present high total mortality and re-vascolarization (particularly for peripheral occlusive disease) gives less guarantee of success. During last years endovascular surgery procedures extremely improved short-term prognosis for these patients. When there is no space for the re-vascolarization and the situation is strongly compromised by the presence of extended gangrene or infected lesion, amputation is still indicated and can be considered the only possible solution.

[Peripheral arteriopathy in ESRD dialysed patients: when and how to intervene]. / L'arteriopatia periferica nel paziente in emodialisi cronica: quando e come intervenire.

Critical limb ischemia secondary to chronic peripheral occlusive disease is common in chronically dialysed patients, with an incidence rate of 25-30%. Atherosclerotic lesions are more frequent in the infrainguinal arteries and long infrapopliteal occlusions often occur. Due to diabetes, hypertension and ischemic cardiopathy, the surgical prognosis is very poor in these patients; medical treatment should always be attempted associated with analgesia, without an excessive delay in surgical therapy if needed. Both spinal stimulation and lumbar simpaticectomy often fail; open and endovascular surgery are the best options before major amputation, which has a high incidence in this patient subgroup. Between 2000 and 2003, 23 chronically dialysed patients underwent surgery. Nine open and 13 endovascular procedures were performed, associated with four immediate and five late minor amputations. Despite an immediate mortality rate of 8.6%, we obtained immediate patency and limb salvage in all cases. In a medium follow-up of 25 months (range 3-36), five thromboses were found in subinguinal procedures; not one in iliac procedures. The five patients underwent major amputation. Another two patients underwent amputation despite arterious patency. Seven patients died due to cardiovascular diseases during the follow-up. Our experience confirms that the association between POAD and dialysis is a prediction factor for medium-term death and that the surgical risk is highly increased. It is important to select patients undergoing surgical treatment to check for the lowest invasivity.

[Treatment of chronic critical ischemia of the lower limbs with spinal cord electrostimulation]. / Il trattamento dell'ischemia critica cronica degli arti inferiori con elettrostimolazione midollare.

The treatment of Fontaine's third and fourth stage chronic critical lower limb ischemia can be considered a medical, social and economic problem. One current form of therapeutic intervention in some cases is medullary electrostimulation (SCS: spinal cord stimulator). This study looks at the period from January 1998 to December 1997 in which patients were selected for an etiological and symptomatological examination. The criteria established at the European Consensus Conference on Critical Leg Ischemia were employed to perform medullary electrostimulation. The entire procedure included a trial period with a temporary implant and if considered tolerable and effective, a permanent implant. One hundred sixty-four patients (117 male and 46 female, aged 41-93) affected by peripheral obstructive arteriopathy were examined. Etiological causes included atherosclerosis (70.7%), diabetes or other atherosclerotic diseases (25%), inflammatory arteriopathy (1.8%) and chronic renal failure under dialysis treatment (2.4%). The procedure was successful in 103 patients (62.8%) while unsuccessful in 61 (37.2%). The best results were obtained in patients at the Fontaine's 3rd stage in which the limb was saved in 72.2% of the patients and at the beginning of the 4th stage with a success rate of 62.7%. The advanced 4th stage had a success rate of only 42.4%. From an etiological point of view, the rate of limb preservation for atherosclerosis patients was 68.1%, in diabetics 56% and inflammatory diseases 33%. However, no positive results were obtained in patients with chronic renal failure.

[Resection surgery in malignant neoplasms of the exocrine pancreas: our experience, 1987-1994]. / La chirurgia resettiva nelle neoplasie maligne del pancreas esocrino: nostra esperienza 1987-1994.

From 1987 to 1994, 24 patients underwent resection for pancreatic cancer; they represented 24% of all patients observed in that period. Surgical procedures were a pancreatoduodenectomy (PD) in 20 cases, a distal pancreatectomy in 4 cases, a palliative intervention in 61 cases, an exploratory laparotomy in 13 cases and a video laparoscopy in 2 cases. Adjuvant treatments were given in addition to resection in 20 patients. In the 20 patients undergoing PD, mortality was 20% and morbidity 20%. There was no mortality and no morbidity in distal pancreatectomy. The 1-year survival in pancreatoduodenectomy was 50% and 0% for distal pancreatectomy. Pancreatic resection, radical and palliative, whenever technically possible, represents the treatment of choice for pancreatic cancer.

[Retroperitoneal ruptures of the duodenum. Our experience]. / Rotture retroperitoneali del duodeno. Nostra esperienza.

The authors describe a case of retroperitoneal rupture of the duodenum following blunt abdominal trauma. The aetiology, symptomatology of these lesions are discussed and treatment is stressed. Duodenal fistula continues to be a serious postoperative complication. Primary repair with drainage is the preferred treatment. Gastrostomy, internal decompression and feeding jejunostomy are usefully added in the most severe duodenal injuries.

Solitary diverticulum of the cecum and right colon. Report of six cases.

Diverticulum of the cecum is a rare, benign, generally asymptomatic lesion that manifests itself only following inflammatory or hemorrhagic complications. A personal series of six cases discusses the difficulty of differential diagnosis at both the preoperative and intraoperative levels. The preferable treatment is simple resection.