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Biomedical subjects

M C Giuffrida

Publications and source records attributed to M C Giuffrida.

7 recordsLinked to original sources

[Spigelian hernia: 3 case reports].

Spigelian hernia is an uncommon hernia of the abdominal wall, often not easily diagnosed. Three cases of Spigelian hernia are reported. In the first patient it was an incidental discovery, in the second one hernia was complicated by strangulation of the small bowel, in the third patient hernia was symptomatic without complications. In all the patients, in their previous clinical history, an operation for hernia or other abdominal pathologies was observed. These patients were treated surgically, using direct reconstruction of the abdominal wall in two cases, while a non-absorbable mesh was positioned in the preperitoneal space in the third patient. The anatomopathological and clinical features of Spigelian hernia are described and the problems in diagnosis discussed; in addition, the importance of surgical cure in incidental hernia is underlined.

Aged↗

Effects of carbon dioxide pneumoperitoneum, air pneumoperitoneum, and gasless laparoscopy on body weight and tumor growth.

BACKGROUND: The oncologic consequences of intraperitoneal carbon dioxide (CO2) insufflation during the laparoscopic resection of cancer are under debate. The effect of other insufflating gases or gasless laparoscopy on cancer requires study. OBJECTIVE: To study body weight and tumor growth in rats after CO2 pneumoperitoneum, air pneumoperitoneum, and gasless laparoscopy. METHODS: On day 1, an 8-mg bolus of ROS-1 tumor was placed under the renal capsule of both kidneys in rats. In experiment A, rats had either CO2 insufflation (n=10) or a gasless laparoscopic bowel resection (n=10) on day 3 and were humanely killed after 7 days. In experiment B, rats had either a laparoscopic bowel resection with CO2 insufflation (n=11) or insufflation with air (n=11) on day 3 and were killed after 7 days. In both experiments, postoperative weight loss and tumor growth were measured, and the differences were tested with an analysis of covariance. RESULTS: Renal subcapsular tumor growth in the group having gasless laparoscopy was less than that in the group having CO2 pneumoperitoneum (P=.04). Postoperative weight loss in these groups showed no differences (P=.55). No differences in tumor growth or weight loss were found between rats having insufflation with CO2 and those having insufflation with air (P=.61 and P=.68, respectively). CONCLUSIONS: The restoration of body weight after a laparoscopic surgical procedure was similar with CO2, air, or gasless laparoscopy. Gasless laparoscopy was associated with less renal subcapsular tumor growth than was insufflation with CO2. Therefore, the application of gasless techniques in laparoscopic oncologic surgical treatment demands further study.

Air↗

Laparoscopic splenectomy and nephrectomy in a rat model. Description of a new technique.

BACKGROUND: In experimental studies on the effects of laparoscopic procedures on tumor biology, a localized tumor model is desirable. The spleen and the kidney are preferable, because these organs are amenable to tumor placement and subsequent removal. This study describes the technique of laparoscopic splenectomy and nephrectomy in the rat model. METHODS: Pneumoperitoneum was established by CO2 insufflation. Laparoscopic splenectomy involved two-handed dissection, intracorporeal ligation, and division of gastrosplenic attachments and hilar and short gastric vessels. Laparoscopic nephrectomy was done by intracorporeal ligation and division of the renal vessels and the ureter after mobilization of the kidney. RESULTS: Laparoscopic splenectomy was performed in six rats; laparoscopic nephrectomy was done in six rats. Operative time ranged from 45 to 90 min for splenectomy and from 40 to 65 min for nephrectomy. Postoperatively, two rats died from hemorrhage. Necropsy of the rats after 10 days revealed adhesion in three rats after splenectomy and in four rats after nephrectomy. Inflammatory processes were found around the silk ligatures in all rats after splenectomy; in two rats wound infections occurred at the port sites. CONCLUSIONS: Laparoscopic splenectomy and nephrectomy in the rat proved technically feasible and may provide new localized tumor models suitable to be used in further studies on the oncological effects of laparoscopic surgery.

Animals↗

Open versus closed establishment of pneumoperitoneum in laparoscopic surgery.

BACKGROUND: Closed laparoscopy, employing a Veress needle and blind insertion of the first trocar, is favoured by most laparoscopic surgeons. The potential danger of this technique is the occurrence of visceral or vascular injury. Establishment of pneumoperitoneum by an open technique using a blunt-tipped trocar may be a safer alternative. METHODS AND RESULTS: Retrospective review of the literature and the authors' experience was used to compare closed and open laparoscopy. Data on closed laparoscopy in 489335 patients and on open laparoscopy in 12444 patients were culled. Rates of visceral and vascular injury were respectively 0.083 and 0.075 per cent after closed laparoscopy, and 0.048 per cent and zero after open laparoscopy. Mortality rates after closed and open laparoscopy were respectively 0.003 per cent and zero. Pearson chi 2 analysis demonstrated a statistically significant difference in terms of visceral and vascular injury between closed and open laparoscopy (P = 0.002); there was no such difference for mortality rates. CONCLUSION: Open establishment of pneumoperitoneum is advocated in laparoscopic surgery because it is safer than the closed method.

Humans↗

[Diverticula of the right colon. The diagnosis and treatment of complications].

BACKGROUND: Diverticula are localized in the right colon with a rate of 6.7-14% in Western countries. Two types of diverticula have been described in the right colon, on the basis of etiologic and pathological features: multiple diverticula and solitary diverticulum of the caecum. The most common clinical presentation of the right-sided colonic diverticula is an acute inflammatory complication, which is difficult to distinguish from other causes of right iliac fossa pain. METHODS: A survey of the literature is presented and personal experience relative to 4 cases of acute diverticulitis of the right colon observed over a 10-year period is described. RESULTS: In all the patients the preoperative diagnosis was acute appendicitis. In two cases the poor clinical conditions of the patients were associated with the free perforation of a solitary caecal diverticulum and diffuse faecal peritonitis. A temporary caecostomy was therefore required. In two cases a localized inflammatory mass was found around a perforated solitary diverticulum of the caecum. An ileocaecal resection was performed. CONCLUSIONS: The purpose of this study is to emphasize the epidemiological, etiologic and clinical features of right-sided colonic diverticula, and the diagnostic and therapeutic management of their complications.

Acute Disease↗

[Mirizzi's syndrome].

Two cases of Mirizzi's syndrome are reported. The syndrome consists of: external compression of the common bile duct due to a benign lesion (Type I)--presence of a cholecystobiliary fistula with impacted stones and partial or total obstruction of the hepatic duct (Type II). Clinical signs are non-specific and suggest at first sight an obstructive jaundice. Ultrasonography shows dilatation of the upper biliary tract with narrowing of the biliary tract below the dilatation. ERCP often proves mandatory for diagnosis. Therapeutical procedures are reported.

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