Biomedical subjects
Publications and source records attributed to D Clerico.
Pneumoperitoneum in diagnostic or therapeutic laparoscopy can be achieved by an open or a closed technique. The authors, on the basis of their experience, compare both techniques, concluding that open method is safer, because of the lack of major complications observed in the closed method and with only few minor complications.
During the period between 1-1-1979 and 30-9-1992, 43 cases of hemorrhagic necrotic acute pancreatitis were referred to the authors' attention. Six patients were not operated, 12 underwent emergency surgery and laparotomy was postponed in 25 cases. The introduction of sophisticated diagnostic methods, such as Eco, CT, ERCP, intensive medical therapy and postoperative NPT have allowed a more rational surgical approach in terms of timing and extent to be adopted, operating on patients who are metabolically more stable. NPT is a useful tool in the latter postoperative stage. In the series of patients undergoing emergency laparotomy there was a mortality rate of 66%. The mortality rate fell to 16% in those patients in whom surgery was postponed.
Between January 1983 and July 31, 1988 at the 1st Division of General Surgery of Cuneo S. Croce Hospital, 57 patients (33 m, 24 f) were subjected to abdomino-perineal amputation for rectal A.D.K. A definitive colostomy was fashioned for all patients. Neostoma complications were encountered in 33% of cases. 91% of patients completed the rehabilitative programme and 40% saw satisfactory results as regards the regularisation of the alvus and return to social life.
The prognostic factors regarding colon-rectal cancers in the under-40s are examined. A personal series of 15 cases shows that the incidence of tumour recurrence is higher and the disease-free interval shorter than in patients not selected for age and that 5-year survival is much less. These results permit the hypothesis of greater aggressiveness in colorectal cancers in the young, something that justifies the severer prognosis by comparison with the elderly population.
On the basis of experience acquired through 11 cases of acute mesenteric infarction personally observed over a 10-year period (1-1-1978-31-12-1987) and on the basis of a review on the literature, the usefulness for the purposes of early diagnosis and consequent early treatment of monitoring the essential, typical biological and clinical parameters of patients at risk of acute mesenteric infarction are reported.
The symptomatology and diagnostic procedure adopted in 11 cases of acute mesenteric infarction are examined. Stress is laid on the importance of early, aetiologically accurate diagnosis for the purpose of instituting profitable treatment. In order to comply with such needs it is essential to perform urgent selective arteriography and/or urgent laparoscopy which only with rare exceptions is carried out even in hospitals that should be better equipped.
The treatment adopted in 11 cases of acute mesenteric infarction is described: 6 cases involved arterial occlusion due to embolism and 5 arterial occlusion due to thrombosis. Six explorative laparotomies, 4 intestinal resections and one embolectomy of the superior mesenteric artery were carried out. Mortality was 63%. Stress is therefore laid on the need for very early, etiopathogenetic accurate diagnosis so as to commence treatment during the phase of reversible ischaemic intestinal lesion, targeting treatment to the cause of the ischaemia. The problem of the postoperative treatment problem is then discussed with special regard to the treatment of shock, the prevention of recurrences and the short intestine syndrome.
A personally observed case of biliary ileus triggers this description of its clinical features, blood chemical and diagnostic aspects and surgical treatment. Emphasis is placed on the importance of the preoperative rehydration and restoration of the electrolyte balance in patients with upper intestinal occlusion which reduces the risk involved in subsequent surgery.
Certain aspects of OPSI (Overwhelming Post-Splenectomy Infection) are examined, mainly its considerable gravity, its relatively high incidence, especially in children; its difficult prophylaxis with a report on personal experience of ectopic autotransplant of spleen tissue in two young patients after splenectomy for traumatic rupture. The technique was found to be simple and quickly performed. Scintigraphic follow-up for over 4 years after the operation showed satisfactory growth in the transplanted spleen tissue.
The problem of obstructed emptying of the gastric stump after Billroth II operations in patients previously treated with H2 receptors is discussed. Statistical comparison using the Student's "t" test revealed a significant difference (t = 2.173) between those given and not given H2-antagonists and confirmed the existence of greater postoperative hypotonia in the gastric stumps of the former group. This clinical syndrome demands careful monitoring of the hydroelectrolytic balance and possibly the use of a double naso-gastric and nasojejunal tube as a precaution to ensure the delivery of the jejunal contents to the stomach. The gastrokinetic drugs metoclopramide and domperidone are also beneficial.
A series of 172 cases of acute pancreatitis encountered between 1-1-79 and 30-4-88, including 57 treated with somatostatin is presented. A comparison between the latter and the other cases treated with a variety of drugs (aprotinin, cimetidine, ranitidine) led to the following conclusions: 1) somatostatin significantly improves the clinical course of acute oedematous pancreatitis with circumscribed necrosis; 2) it makes no difference to the development of cases with diffuse necrosis and haemorrhage.
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This nineteen-year retrospective review was designed to evaluate diaphragmatic hernias due to blunt thoracoabdominal trauma in a series of 50 patients. Motor-vehicle accidents were the most frequent cause. The diagnosis was made immediately after injury in 34 patients (acute hernias), but delayed from two months to 30 years in 16 (chronic hernias). Two patients, with multiple associated injuries, died soon after admission and diagnosis was made at necropsy. The nature of injury, the physical findings and the plain chest roentgenograms suggested a traumatic diaphragmatic hernia in most of the remaining acutely injured patients. All patients with chronic hernias had suggestive or suspicious abnormalities on chest roentgenograms; however, appropriate upper gastrointestinal tract and barium enema studies were of utmost importance for the correct diagnosis. Reduction of herniated viscera and repair of diaphragmatic defect were generally accomplished through a laparotomy in acute hernias, whereas thoracotomy was the preferred approach in delayed instances. There were four postoperative deaths, three with severe multiple associated injuries and one with respiratory failure.
Palliative substernal gastric bypass was performed in 20 patients with far-advanced, obstructing carcinoma of the thoracic esophagus between the years 1978 and 1982. In 18 patients the thoracic esophagus was bypassed using the stomach brought to the neck by substernal route for anastomosis to the proximal end of the divided cervical esophagus. The thoracic esophagus was completely excluded in 10 patients; the tumor-bearing segment of the esophagus excluded formed a small and asymptomatic mucocele with time. The Kirschner-Ong technique with the additional step of Roux-en-Y jejunal anastomosis to the intra-abdominal esophagus was used to provide drainage of esophageal secretions in 8 patients with tracheoesophageal invasion or impingement, for fear of imminent esophagorespiratory fistula; in three of these patients a radiation therapy was subsequently administered. In two patients an isoperistaltic gastric tube formed from the greater curvature and brought to the neck substernally was used for esophageal bypass. Anastomotic leakage occurred in 3 patients (15%). The thirty day operative mortality was 10 per cent (2/20) and the mean survival time was 10 months. The palliation afforded was excellent in all survivors with restoration of the ability to swallow a normal diet until the time of death. The authors believe that a simple one-stage bypass of the esophagus using the stomach substernally is an effective alternative to esophageal intubation, prolonged radiation therapy or colon bypass in achieving palliation with an acceptable morbidity and mortality in a high risk patient group.
In a total of 142 patients with adenocarcinoma of the proximal third of the stomach and cardia, curative resection was carried out in 88 during the period 1960-1980. The patients were divided in two groups. I group included 32 patients with tumor distal to the esophagogastric junction. In II group (54 patients) the tumor involved the esophagogastric junction (adenocarcinoma of the gastric cardia). In I group, when the proximal border of the cancer was well defined and sufficient length was maintained between the proximal tumor border and esophagogastric junction, the abdominal approach was preferred and the operation performed was generally a total gastrectomy combined with splenectomy and celiac node dissection. Distal pancreatectomy was performed as necessary. In most patients of the II group, the operation was performed using separate abdominal and right-sided thoracic incisions. Two principally types of operation were used: extended total gastrectomy and extended proximal subtotal gastrectomy, depending on degree of gastric wall involvement, combined with extensive esophagectomy, splenectomy and regional nodes dissection in both cases. Distal pancreatectomy was not performed routinely but only as necessary. In this group of patients there was no significant difference in the overall cure rate between the extended total gastrectomy and the extended proximal subtotal gastrectomy. Operative morbidity and mortality rates were also comparable.
An experience with 16 patients with respiratory tract fistula (RTF) related to carcinoma of the esophagus is presented. The malignant fistula was present at the time of initial presentation and/or before any therapeutic intervention in 11 patients, and developed either during or following a course of radiation therapy in 5 patients. Bronchoscopy examination in 8 patients prior to RTF development showed tracheobronchial invasion or impingement in all. The patients were divided in five groups according to the treatment received. One patient received no specific therapy although was fed via nasogastric tube. Three patients had a feeding gastrostomy. Four patients underwent insertion of a Celestin tube. Three patients were submitted to esophageal exclusion with combinations of cervical esophagostomy, feeding gastrostomy and ligation or complete division of the gastroesophageal junction; drainage of the excluded esophagus was provided by a red rubber catheter. Five patients received by-pass operation: four had Kirschner-Ong operation with gastric by-pass placed substernally and distal esophagus anastomosed to a Roux-en-Y jejunal loop; in one patient an isoperistaltic gastric tube brought to the neck substernally was used for esophageal by-pass. These patients had, by far, the best palliative results with complete relief of their respiratory tract symptoms and restoration of the ability to eat and drink. Substernal gastric by-pass of the RTF is therefore advocated if the general conditions of the patient are improved with the institution of parenteral hyperalimentation and antibiotic therapy.
During the period between november 1964 and december 1982, 48 patients were operated upon for metastatic lesions of lung from previous or actual carcinomas and sarcomas elsewhere in the body. The most frequent sites of origin of the primary malignancy were colon, testis and breast. The usual approach was through a thoracotomy; bilateral lung metastases were removed with one-stage procedure through a median sternotomy in two patients. The operative mortality was 2%. Overall five-year survival was 26%, which was not influenced by tumor histology, disease-free interval, or extent of pulmonary excision. In view of these findings, conservative pulmonary resection of metastatic lesions is advocated, regardless of the tumor histology or the disease-free interval, when the following criteria are adhered to: primary site controlled or controllable; no extrapulmonary metastases demonstrable; good operative risk; no other effective means of treatment available.