[Laparoscopic cholecystectomy in day-surgery analysis of feasibility in 166 consecutive patients]. / La colecistectomia laparoscopica in day-surgery: analisi di fattibilità su 166 pazienti consecutivi.

BACKGROUND: Day-Surgery (DS) is a widely spreading reality, both for clinical advantages to patients and organizational and economic profit to hospitals. In the last years, DS has been proposed for the treatment of a large number of diseases as inguinal and crural hernias, varicose vein, benign anorectal and thyroid pathologies. Recently, also laparoscopic cholecystectomy (LC) has been realised as DS procedure, and the initial results are promising. OBJECTIVES: To determine both the clinical feasibility of LC in DS and the factors that can predict an extension of hospital stay. MATERIALS AND METHODS: The present study is a retrospective analysis of 166 patients who underwent surgery because of symptomatic cholelithiasis in a three-year period; all patients underwent elective LC in ordinary hospital-stay. In order to identifying the patients potentially eligible for LC in DS, we carried on a selection by means of 3 consecutive stages: stage A, selection on the basis of preoperative data, stage B, selection on the basis of intraoperative factors and stage C, selection on the basis of postoperative parameters. RESULTS: Out of 166 patients, only 33 (19,8%) would have been successfully treated in DS. CONCLUSIONS: This study showed that LC in DS can be realised in strictly selected patients, on the basis of rigorous clinical and organizational criteria; furthermore, a continuous training of surgeons and nursing staff, the implementation of tele-medical facilities and the improvement of anesthesiological techniques will allow to the best results.

The continuing challenge of gallbladder cancer. Survey of thirty years' experience at the University of Chicago.

The current concepts of the etiologic factors and spread of carcinoma of the gallbladder are discussed. The experience at the university of Chicago with this condition over a period of thirty years is reviewed. Of eighty-two cases diagnosed during this time, 88 per cent of the patients died within one year of diagnosis and the five year survival rate was 5 per cent. The difficulties in diagnosis of cholecystic neoplasms are considered, and the possibility of increasing diagnostic accuracy by the use of celiac axis angiography, immunologic tests for tumor-associated antigens, peptide hormone assays, and cytologic study of duodenal juice is discussed. The place of palliative surgery in the management of cancer of the gallbladder is outlined. Means of improving the current high mortality of this condition are evaluated, and a plea is made for a controlled trial of the various forms of treatment that have been suggested.

[Prognostic value of C reactive protein in acute pancreatitis]. / Valore prognostico della proteina C-reattiva nella pancreatite acuta.

Controversy still exists regarding the clinical features of acute pancreatitis: it is not known whether this is a disease which progresses from mild to severe forms or which arises immediately as severe acute pancreatitis. An early diagnosis, however, is regarded as mandatory for successful treatment. Over the years many Authors have proposed different scoring systems for the early assessment of the clinical evolution of acute pancreatitis. The most widely used scoring systems (Ranson, Osborne, Apache II) are often cumbersome and difficult to use in clinical practice because of their multifactorial nature. Thus, a number of unifactorial prognostic indices have been employed in routine hospital practice, such as C-reactive protein, serum amylase and serum lipase. These serum enzymes are easy to obtain in normal clinical practice and many authors consider them as reliable as multifactorial scoring systems. One hundred and five patients affected by acute pancreatitis have been hospitalised in the Surgical Department of San Giacomo Hospital (Rome) over an nine-year period. All patients underwent C-reactive protein, amylase, and lipase serum assays on days 1, 3 and 5 after admission. The results show that C-reactive protein assay is highly sensitive in detecting necrotic forms of acute pancreatitis. The authors conclude that C-reactive protein, together with both serum amylase and serum lipase, often provides a precise picture of the clinical situation in patients with acute pancreatitis. On this basis the best therapeutic option can be chosen.

[Multicenter prospective study of informed consent in general surgery]. / Studio prospettico multicentrico sul consenso informato in chirurgia generale.

To understand the level of acceptance, awareness and usefulness of informed consent, a group of 119 patients (59 men and 60 women) from different types of hospitals were given a questionnaire which required only 'YES or NO' answers, both before and after surgery. The questionnaire concerned the patient's knowledge about pathology, operative risks, approval, anxiety caused, understanding of information received and consent given, and also if he would inform a relative in the same condition. From the analysis of the results it was established that: the more information a patient has about his illness and operation risks, the more he will want to have; the less he knows the less he will want to know, and he will also have more faith in the doctors. Some patients would not inform a relative with a similar pathology. To conclude, informed consent, instead of being a right of the patient is progressively becoming more a right of the doctor. It does not have any real effect on the patient's choice but is useful, as it represents a moment of personalised attention from medical personnel, though the patient may not completely understand the information received. There are few advantages in strictly medical terms but informed consent has increased malpractice litigation.

[Surgical treatment of recurrent gastroesophageal reflux]. / Terapia chirurgica del R.G.E. recidivato.

From 1972 to 1994, 66 patients underwent 67 Belsey MK IV antireflux repairs in our unit. Fifteen of the 67 patients or 22% had previously undergone antireflux surgery (10 hiatal repairs and 5 antireflux repairs). Obstructive symptoms were present in one patient who had previously undergone a Nissen fundoplication whereas all other patients presented recurrent reflux. There were no operative complications and only one hospital mortality (6.6%). Long-term results were good-to-excellent in 62% of all patients and fair in 15% of all patients; failures constituted 23% of all cases and were due to recurrent reflux symptoms. In the literature of the last 20 years, two groups can be identified, one group consisting of 142 patients treated surgically after unsuccessful Nissen fundoplication, the other group consisting of 438 patients who underwent 580 operations due to failure of the more common antireflux procedures used today. Recurrent reflux was the most frequent cause of failure in both groups (48% in the first and 58% in the second group). With respect to obstructing symptoms (26% and 32% respectively), these were due to a tight wrap in those patients who underwent a Nissen fundoplication and to peptic stenoses in those patients who underwent other surgical procedures. In 25% of patients who underwent a Nissen fundoplication, the cause of failure was the so-called "Slipped Nissen", responsible for both obstructing symptoms and reflux. In 60% of patients treated for failure following a Nissen fundoplication, the same surgical procedure was used. In the second group, only 20% of all patients underwent a Nissen fundoplication while 20% underwent esophageal resections and another 20% other antireflux surgical procedures. The differences in mortality and morbidity in the two groups (0-2% vs 0-12% and 0-33% vs 21-73%) are probably related to a higher incidence of the thoracic approach in the second group. Good-to-excellent results were achieved in 60-100% of patients treated for failure after a Nissen fundoplication and in 58-60% in those patients treated for failure of other various surgical procedures.

[Isolated agenesis of the gallbladder: case report]. / Agenesia della colecisti: caso clinico.

The gallbladder agenesis is a rare congenital abnormality which is frequently mistaken with cholecystolithiasis, regardless of the imaging modality used. The diagnosis is confirmed at laparoscopic surgery with intraoperative sonography and intraoperative cholangiography and postoperative MRI-cholangiography. Intraoperative cholangiography may be risky because the absence of normal anatomical structures and the impossibility of pulling on the gallbladder to dissect the triangle of Calot represents an increased risk of iatrogenic injury to biliary or portal structures. Therefore postoperative MRI-cholangiography seems to be a more suitable approach to confirm the diagnosis.

[Palliative treatment of esophageal neoplastic stenoses with self-expanding metallic stents]. / Trattamento palliativo delle stenosi neoplastiche esofagee con stent metallico autoespandibile.

Thirty Strecker nickel-titanium self-expanding metallic stents were implanted in 20 patients with esophageal strictures and inoperable neoplasms in the Departments of Radiology of the University School of Medicine of Ferrara, Genoa, Novara and Rome, from March 1992 to April 1993; follow-up ranged 1 to 13 months. Thanks to the stents, esophageal strictures could be dilated, significantly reducing dysphagia and allowing the patients to return on to a solid diet. Radiological and endoscopic exams proved the efficacy of the stents in all but 2 patients in whom the tumors had invaded the stent lumen and caused obstruction. In all cases the stents were highly biocompatible and well tolerated. Neither major complications, such as perforation or bleeding, were observed, nor minor ones, such as fever or migration from the site of implant, which may occur with plastic prostheses. To conclude, self-expanding metallic stents used in clinical trials for 13 months proved an effective method in the palliative treatment of malignant esophageal strictures.

Palliative treatment of neoplastic strictures by self-expanding nitinol Strecker stent.

The purpose of this study was to evaluate technical and clinical results of self-expanding esophageal stent implanted in patients with malignant esophageal strictures and clinically significant dysphagia. From June 1992 to September 1994, 27 patients with inoperable tumors of the esophagus or gastric cardiac were treated by placement of 37 self-expanding nitinol stents. Water-soluble contrast and endoscopy studies were performed after the procedure and during the follow-up period. Successful stenting of the stricture was achieved in 27 patients. The mean dysphagia grade dropped from 2.3 to 1 (SD +/- 0.54) immediately after the procedure. After the insertion of the stent, 16 patients died in a period of time ranging from 0 to 13 months (mean 5.6 months), whereas at the end of the study 11 patients were alive 4-15 months after the procedure (mean 8.3 months). No major complications were observed. The results of this study are encouraging because esophageal stent placement was technically easy and clinically effective.

Effect of gastrointestinal hormone infusions of lower oesophageal competence of rhesus monkeys.

The lower oesophageal high pressure zone (HPZ) was studied in 5 non-refluxing and 3 refluxing Rhesus monkeys. The changes in HPZ and reflux status in response to infusion of various doses of secretin, cholecystokinin and glucagon were measured in all animals, and, in the 5 non-refluxing monkeys, after oesophagogastrectomy with replacement of the lower oesophagus by a stomach tube. All three hormones consistently produced a transient decrease in the HPZ pressure. The only change in response following oesophagagastrectomy and gastric tube replacement was a significant delay in the response to each hormone. Neither hormone infusion nor operation altered gastro-oesophageal reflux status. It appears that lower oesophageal competence in primates is more dependent on the presence of narrow, muscular, intra-abdominal tube than on a specialized segment of the lower oesophagus.

Functional evaluation of the interposed colon as an esophageal substitute.

Five Rhesus monkeys and four human adults with colonic reconstruction of the esophagus have been studied by manometric, fluoroscopic and reflux tests. Transit through the graft is mainly under the influence of gravity. Infrequent colon contractions can be propulsive, and sequential haustral contractions give the appearance of peristalsis. The diaphragmatic hiatus and esophagocolic anastomosis are the sites of weak barriers to reflux which are readily overcome by abdominal compression and gastric distension. Esophageal peristalsis is necessary to return refluxed material and cricopharyngeus muscle is the final barrier to regurgitation.

Heller-Belsey and Heller-Nissen operations for achalasia of the esophagus.

From 1972 to 1985, 101 consecutive patients underwent Heller's myotomy and Belsey repair (H + B) (n = 43) or Nissen fundoplication (H + N) (n = 58) for achalasia of the esophagus. There was no operative mortality after either operation; minor pulmonary complications occurred after H + B procedure in 9.3 per cent of the patients. Good to excellent long term results were achieved in 87 per cent of the patients after H + B repair and 83 per cent of the patients undergoing H + N. The failure rates were 2.5 and 11.3 per cent, respectively. The analyses of postoperative esophageal symptoms showed that the incidence of heartburn was greater after H + B repair and the incidence of obstructive symptoms was greater after H + N. The inability to vomit or belch, or both, was 10.2 per cent in the H + B group and 13.1 per cent in the H + N group. Finally, 56.4 per cent of patients after H + B repair and 41.0 per cent of those after myotomy and H + N were considered to be cured after the operative procedure was performed. Patients were improved in 41.0 and 47.3 per cent, respectively.

Belsey and Nissen operations for gastroesophageal reflux.

From 1972 to 1985, 37 consecutive patients underwent primary Belsey repair and 40 consecutive patients underwent primary Nissen fundoplication because of reflux disease. The operative procedures were performed by a single surgeon in each group. For the purpose of comparison, both groups were divided into two subsets: (1) patients with proved reflux, and (2) patients with different indications. The first subset consisted of 30 patients in the Belsey series and 32 in the Nissen series. The remaining patients were included in the second subset. One death occurred in the Belsey series; morbidity consisted of minor pulmonary complications in the Belsey series (10.8%) and spleen injuries requiring splenectomy (5%) in the Nissen series. In patients with proved reflux good-to-excellent results were achieved in 89.3% of subjects of the Belsey series and 86.6% of patients of the Nissen group. The failures rates were 7.1% and 10%, respectively. Inability to vomit and/or belch was reported in 7.1% of patients with proved reflux of the Belsey group and 10% of patients with proved reflux of the Nissen group. In patients with different indications there were no failures after either operation. Finally 82.2% of subjects in the Belsey group and 73.3% of patients in the Nissen group declared that they were satisfied with the operative results. In conclusion the Belsey and the Nissen procedures are equally able to achieve long-term control of reflux disease in comparable groups of patients. Failures and gastrointestinal symptoms are equally frequent after either procedure and do not affect the overall patient acceptance of antireflux surgery.