Laparoscopic sleeve gastrectomy for morbid obesity: role of intraluminal and intraperitoneal postoperative drainage

BACKGROUND AND AIMS

Bleeding and staple line leak are the most common postoperative complications of LSG. To prevent and/or to promptly identify such complications, conventional peri-operative protocols imply post-operative gastric decompression (NGT) and staple line drain (IAD). Our aim was to evaluate the role of naso-gastric tube (NGT) and intra-abdominal drain (IAD) in preventing and/or facilitating identification and treatment of post-operative complications after sleeve gastrectomy.

PATIENTS AND METHODS

A retrospective observational study on two consecutive series has been undertaken to evaluate the real utility of routine placement of NGT and IAD at the end of a LSG to prevent (primary end-point), promptly identify (secondary end-point) and manage (tertiary end-point) bleeding and staple line leakage. Collected outcome data of all consecutive cases, which underwent primary LSG at our Department, were analyzed. The first 100 consecutive patients (group A) received the standard perioperative protocol and the other consecutive 100 (group B) received a fast track protocol (no NGT neither IAD).

RESULTS

The two groups were not different in their outcome. Two bleeding occurred in Group A and were conservatively treated. One abscess developed in group B soon after surgery. It was diagnosed by an abdominal CT performed because patients presented fever, leucocitosis and tachycardia. It was successfully treated by percutaneous ultrasound-guided drainage. One fistula occurred in group B after discharge on 30th post-operative day. Fistula was suspected based on fever and tachycardia in absence of any abdominal discomfort and was confirmed by an abdominal CT. The patient was successfully treated in 40 days by endoscopic positioning of a gastric tube-prosthesis and percutaneous ultrasound-guided drainage of abdominal collection. A third patient in group B experienced bleeding suspected due to hemoglobin drop and confirmed by abdominal CT. He also was conservatively treated.

CONCLUSIONS

In conclusion, placement of drains does not facilitate detection of leak, abscess, or bleeding after primary LSG.

Management of Staple Line Leaks Following Laparoscopic Sleeve Gastrectomy for Morbid Obesity

PURPOSES

Management of staple-line leaks following laparoscopic sleeve gastrectomy (LSG) is challenging and controversial. Guidelines for leak treatment are not standardized and often involve multidisciplinary management by surgical, medical and radiological methods. Herein we present our experience and proposed strategy for handling leaks after LSG.

PATIENTS AND METHODS

Retrospective data regarding LSG performed from April 2012 to October 2017 at the Surgical Oncology Division, Department of Human Pathology in Adulthood and Childhood ''G. Barresi'', University Hospital "G. Martino", University of Messina, Italy, were reviewed. The management approaches and the surgical, endoscopic, and percutaneous procedures used were examined. Outcomes measured included the prevalence of gastric leaks, radiological features, related morbidities and mortalities, hospital stay and management.

RESULTS

LSG was performed in 310 patients. Eight patients were managed for gastric leak within the 5-year period: 5 (1.6% overall prevalence) from our division, 3 referred from another hospital. All cases were successfully treated conservatively with combined CT/US-guided drainage using a locking pigtail catheter and endoscopic gastric stent positioning. Endoscopic therapy included the use of fully covered self-expanding esophageal metal stents (Hanarostent® 24 cm; M.I. Tech, Seoul, Korea) in addition to pigtail drains (Drainage Catheter Locking Pigtail 8F/21cm; Tru-Set® Ure-Sil, Skokie, IL, USA). Complete closure of the leak was achieved in all patients. The mean time from presentation to healing was 74 days ± 37.76 (SD). None of the patients underwent remedial surgery.

CONCLUSION

This study presents our management strategy for leak resolution in LSG patients. Based on our results, we strongly recommend the conservative and combined management of gastric leaks following LSG by endoscopic stenting and percutaneous drainage.

Fever of unknown origin due to intrahepatic wooden toothpick

Ingestion of foreign bodies is a common clinical problem, but intrahepatic migration is an exceptional occurrence. Clinical history is not helpful. Abdominal ultrasonography and CT are fundamental to exclude surgical causes of fever of unknown origin. Laparoscopic segmental liver resection is recommendable to avoid generalized peritonitis.

Three-Dimensional Versus Two-Dimensional Laparoscopic Right Hemicolectomy

BACKGROUND AND AIMS

To address the issue whether three dimensional (3D) offers real operative time advantages to the surgical procedure (primary endpoint) and significant reduction of surgeon's physical strain (secondary endpoint), we have retrospectively analyzed two consecutive series of laparoscopic right hemicolectomy (LRH) performed by a single experienced laparoscopic colorectal surgeon with two different imaging systems (two dimensional [2D] and 3D).

PATIENTS AND METHODS

Since January 2014, 25 consecutive patients with right colon cancer underwent 3D LRH and other 25 consecutive ones received a 2D LRH by a single experienced surgeon. After the insertion of the access ports, the surgical procedure has been divided in component tasks and the execution times were compared. Upon completion of each procedure, the consultant surgeon was asked to complete a nonvalidated subjective questionnaire to evaluate quality of depth perception and surgical strain.

RESULTS

The execution times for the entire procedure and the single tasks were not significantly different between the 2D and 3D groups, except for the second task "side-to-side ileotransverse anastomosis" (P < .05). The surgeon experienced better depth perception with the 3D system and subjectively reported less strain using the 3D vision system rather than the 2D system, particularly during longer procedures.

CONCLUSIONS

Three-dimensional imaging seems not to influence the performance time of laparoscopic right colon cancer surgery when the surgeon is experienced in 2D laparoscopy, although the 3D system seems to offer better depth perception and to subjectively determine less physical strain compared to 2D vision. Further comparative studies are necessary to address the issue whether novice surgeons could benefit from a reduced learning curve using 3D vision and to verify with greater numbers if 3D, even with a similar operative time, can reduce perioperative complications.

A clinical and nutritional comparison of biliopancreatic diversion performed with different common and alimentary channel lengths

BACKGROUND

This retrospective study compares the clinical and nutritional outcomes of 100 morbidly obese patients who underwent biliopancreatic diversion (BPD) with common (CC) and alimentary channel (AC) length, respectively, 50/250 and 80/200 cm.

METHODS

One hundred patients who received BPD from October 2006 to November 2011 were identified from a database of bariatric procedures performed at the University Hospital of Messina, and the outcomes in terms of weight loss and morbidity were compared. Forty morbidly obese patients underwent BPD with CC 80 cm and AC 200 cm (group 1) and 60 morbidly obese patients underwent BPD with CC 50 cm and AC 250 cm (group 2).

RESULTS

A gradual weight loss was observed in both groups during the first 3 years after the operation without any significant difference between the two groups. Two cases of protein malnutrition occurred in the group 2 (3 %) due to poor patient compliance in terms of adequate dietary protein intake. Sideropenic anemia was found in 42 % of obese patients in group 2 versus 22.5 % in group 1 at third-year follow-up despite adequate supplementation (p = 0.047). Diarrhea occurred more frequently with a shorter CC. Lipophilic vitamin deficiencies occurred more frequently with a shorter CC despite adequate oral supplementation.

CONCLUSIONS

In the medium term, our series showed that shorter CC was associated with no weight loss advantage but with higher morbidity rate, especially in young and fertile women. We recommend a longer CC (80 cm) to be performed especially in this sub-population of obese patients.

The Aquamantys® system as alternative for parenchymal division and hemostasis in liver resection for hepatocellular carcinoma: a preliminary study

OBJECTIVE

To evaluate the clinical feasibility and safety of a new technique for liver resection using a new saline-coupled bipolar sealing device (Aquamantys®) that has shown high performance in the animal setting.

PATIENTS AND METHODS

Twelve Child-Pugh A cirrhotic patients with hepatocellular carcinoma underwent partial hepatectomies using Aquamantys®. Our primary end-point was to observe occurrence of early specific surgical complications as bleeding, biliary leakage and abscess development. Our secondary end-point was to evaluate local recurrence along resection margin after a minimum follow-up of 1 year.

RESULTS

One bisegmentectomy, five monosegmentectomies and six atypical resections were performed. Mean resection time was 45 minutes (range, 30-100 min). Mean blood loss was 20 mL (range 5-80 mL). Mean post-operative stay was 6 days (range 5-16 days). All specimens presented negative margins (R0) at pathological examination. No blood transfusion were required both intra-operatively and post-operatively. No mortality was observed within 30-days post-operatively. One fluid collection occurred after  6-7 bisegmentectomy and was successfully treated by ultrasound-guided percutaneous drainage. At 1 year follow-up two patients died: one because of new lesions into the liver and one because of distant metastases and multifocal new liver disease. Ten patient are alive disease free at 1 year follow-up.

CONCLUSIONS

Liver resection using Aquamantys® is feasible and safe and allows to achieve almost bloodless parenchymal division with minimal necrosis and negative margins even in atipycal resection. Comparative trials are needed to confirm our preliminary results.

Single-incision versus three-port conventional laparoscopic right hemicolectomy: is there any real need to go single?

BACKGROUND

Preliminary results showed some benefits of single-incision laparoscopic surgery (SILS) over conventional laparoscopic colectomy, including better cosmesis, less postoperative pain, and faster recovery, but these results need further confirmation. In addition, the literature still lacks comparative studies between the two approaches to prove the above-mentioned advantages of SILS over conventional laparoscopy and, most importantly, its equivalent effectiveness in terms of initial oncological results.

PATIENTS AND METHODS

Two consecutive series of 10 patients undergoing three-port conventional laparoscopic right hemicolectomy (3PCL-RH) and single-incision laparoscopic right hemicolectomy, respectively, were compared in their short-term surgical and oncological outcomes.

RESULTS

Analysis of perioperative and postoperative outcomes revealed no significant differences between the two groups. In the SILS group an anastomotic leakage occurred, which was conservatively treated by continuous drainage, total parental nutrition, and antibiotic therapy. The analysis of oncological outcomes showed no differences in terms of length of distal tumor-free margin and harvest of lymph nodes.

CONCLUSIONS

Despite its feasibility for right hemicolectomy and its equivalent short-term surgical and oncological outcome compared with conventional laparoscopy, SILS demonstrated no significant advantages in terms of surgical incision length and postoperative course compared with 3PCL-RH. We acknowledge that the small sample size and the nonrandomized design are a limit of the study. Thus, prospective randomized controlled trials are recommended to prove the superiority of single-incision laparoscopic right hemicolectomy.

LigaSure vs clamp-and-tie technique to achieve hemostasis in total thyroidectomy for benign multinodular goiter: a prospective randomized study

HYPOTHESIS

Occurrence of adverse effects and advantages of the LigaSure diathermy system (or LigaSure vessel sealing system) in total thyroidectomy have not been tested in prospective randomized studies comparing its use with that of the time-saving clamp-and-tie technique to ligate and divide thyroid vessels. The effectiveness of LigaSure in achieving vessel division and hemostasis remains dependent on vessel diameter, and the risk of damage to adjacent structures cannot be completely excluded. We tested the hypothesis that use of LigaSure compared with the clamp-and-tie technique can significantly and conveniently reduce operative time without increasing postoperative complications in patients undergoing total thyroidectomy for benign multinodular goiter.

DESIGN

Prospective randomized study.

SETTING

Regional hospital.

PATIENTS

Two hundred consecutive patients with benign multinodular goiter undergoing total thyroidectomy performed by 1 of 3 surgeons.

INTERVENTIONS

According to a randomized sequence, total thyroidectomy was performed in 100 patients using LigaSure and in 100 patients using the clamp-and-tie technique.

MAIN OUTCOME MEASURES

End points of the study included the comparative evaluation of postoperative complications, need for parathyroid gland autotransplantation, operative time, and time to hospital discharge. Preoperative, postoperative (24 hours), and 6-week follow-up serum Ca(++) levels are also reported and compared.

RESULTS

The postoperative complication rate was 35% overall, including all transient postoperative disturbances. The incidence of cervical hematomas was 2%, but 3 patients (1.5%), 1 in the LigaSure group and 2 in the clamp-and-tie group, required repeat operations because of respiratory tract obstruction. The incidence of permanent complications was 2.5% overall, including 3 patients (1.5%) with permanent hypocalcemia and 2 patients (1%) with permanent recurrent nerve lesions. No statistical difference in the incidence of complications was found between the 2 study groups. Similarly, no difference was found in mean hospitalization time and need for parathyroid gland autotransplantation. Preoperative, postoperative, and 6-week follow-up mean serum Ca(++) levels were not statistically different in the 2 study groups and in the subset of patients undergoing parathyroid gland autotransplantation. Mean operative time was significantly shorter in the LigaSure group, although the mean difference between the 2 study groups was minimal (7.4 minutes). Concomitantly, there was an additional cost of 45euro (US $57.40) per operation using LigaSure.

CONCLUSION

The use of LigaSure is equally as safe and effective at vessel division and homeostasis as the clamp-and-tie technique, with a statistically significant (although minimal) decrease in mean operative time. Because of this minimal decrease in operative time, use of LigaSure would allow more patients to undergo total thyroidectomy each year, which would eventually help to offset its higher cost.

Quality of life and predictors of long-term outcome in patients undergoing open Nissen fundoplication for chronic gastroesophageal reflux

BACKGROUND

Long-term outcome of antireflux operations as well as pre- and postoperative parameters able to predict their clinical results are still controversial. The aim of the present study was to evaluate long-term quality of life of patients undergoing open fundoplication for chronic GERD and to investigate pre- and early postoperative functional parameters possibly related to persistence or recurrence of symptoms.

METHODS

A cohort of 25 patients who underwent open Nissen fundoplications was reviewed for an evaluation of long-term residual symptoms and quality of life at an average follow-up of more than 10 years. Clinical evaluation was performed by using a symptom-specific score (DeMeester's score), 3 health-related quality of life scores, a GERD-specific (GERD-HRQL score) score, and 2 generic scores (SF-36) evaluating physical and psychological well-being. Subjective satisfaction grade of the patients was also investigated. In addition, a univariate analysis is provided, according to the long-term presence or absence of residual symptoms (120.6-month follow-up), taking into account pre- and postoperative (6-month follow-up) data of endoscopy, 24-hour pH monitoring, stationary manometry, and gastric-emptying test.

RESULTS

Persistence or recurrence of GERD-specific symptoms (heartburn and regurgitation) were reported by 8 patients (32%); 2 patients (8%) were reoperated on for persistent dysphagia, whereas 17 patients (68%) were asymptomatic. GERD-HRQL and SF-36 scores displayed significant postoperative improvement, which continued in long-term follow-up. Twenty patients (80%) had repeat fundoplication. Among tested parameters, only postoperative mean supine esophageal clearance and gastric emptying half-time, although on average improved significantly after the antireflux procedure, differed significantly in long-term asymptomatic and symptomatic subgroups. In long-term asymptomatic patients, postoperative (6 month) mean supine esophageal clearance was 0.8 +/- 0.3 minutes (P = .011) and 2.4 +/- 0.2 minutes in symptomatic patients. Postoperative (6 month) mean gastric emptying half-time of long-term asymptomatic patients was 93.3 +/- 8.9 minutes, whereas in symptomatic patients it was 127.5 +/- 14.3 minutes (P = .047).

CONCLUSIONS

Patients undergoing Nissen fundoplication had a satisfactory long-term quality of life. Clinical results did not deteriorate over time and showed to be related to postoperative esophageal clearance and gastric emptying, which could be regarded as early postoperative predictors of long-term clinical outcome.

Prospective evaluation of ultrasonography plus MIBI scintigraphy in selecting patients with primary hyperparathyroidism for unilateral neck exploration under local anaesthesia

BACKGROUND

Unilateral neck exploration (UNE) is currently replacing conventional bilateral neck exploration with cervicotomy for the surgical treatment of primary hyperparathyroidism (PHPT). However, many concerns still exist about the indications and the effectiveness of this minimally invasive approach.

METHODS

Prospective evaluation of operative results in consecutive patients having indications for UNE on the basis of strict selection criteria consisting of ultrasound-MIBI agreement in adenoma localization, absence of thyroid disease, and psychological suitability for undergoing a procedure under local anesthesia. No intraoperative confirmation study was adopted.

RESULTS

Among 149 consecutive PHPT patients, 45 (30.2%) had indications for UNE. No operative morbidity or mortality was observed. Mean operative time for the UNE procedure was 42 minutes (range 25 to 57). Conversion to general anesthesia was chosen for 5 patients (11.1%), whereas conversion to bilateral neck exploration was chosen for 3 patients (6.6%). For the UNE procedure, the success rate was as high as 91.7%. When the only factor indicated UNE, ultrasound-MIBI localization agreement had low sensibility (44.1%) and specificity (55.6%) but a high positive predictive value (91.1%).

CONCLUSIONS

We concluded that UNE performed under local anesthesia, without intraoperative confirmation studies, could be considered a safe and effective approach to treating patients with PHPT, but we regret the low rate of patients selected for this procedure because of the low sensitivity of the imaging-inclusion criterion.

A primary pancreatic carcinoid tumour with unusual clinical complaints: A case report

Background

Unless metastatic or compressing the pancreatic duct, carcinoid of the pancreas are asymptomatic showing normal levels of serotonine and its metabolites in plasma and urine, thus resulting in delayed diagnosis and a consequent poor prognosis. However, if resection is timely accomplished, no local recurrence might be encountered and a normal survival might be expected in the absence of metastatic disease.

Case Presentation

The reported case of pancreatic carcinoid tumour in a 62-year-old woman reporting only atypical symptoms consisting of intermittent epigastric pain and nausea. Urinary 5-hydroxyindolacetic acid levels were within normal limits and only a slight elevation of serum serotonine level was detected on admission. After tumour localisation with endoscopic ultrasonography, left splenopancreasectomy with splenic, celiac and hepatic lymphadenectomy was carried out.

Conclusion

The role of endoscopic ultrasonography in early detection and precise localisation of pancreatic carcinoids, as well as the role of somatostatin-receptor scintigraphy with ¹¹¹Indium labelled pentreotide in excluding distant metastases, are confirmed. The radical resection with lymphadenectomy is recommended in order to have a precise histological examination and detect occult lymph node metastases.

Laparoscopic Palliative Gastrojejunostomy for Advanced Recurrent Gastric Cancer After Billroth I Resection

Palliative surgery for advanced gastric cancer has equivocal results. Laparoscopy is likely to provide some advantage compared to open procedures. We present a case of laparoscopic gastrojejunostomy for advanced gastric cancer, which recurred after Billroth I resection. Reproducing the results of the early experiences so far reported in the literature, laparoscopy provided us with the accurate staging of the disease along with the opportunity, at the same time, to perform a palliative procedure, avoiding laparotomy. Operative results were good, vomiting was relieved, and the patient was able to cope with his disease until death eventually occurred after 6 months.

Minimally invasive management of insulinomas. A case report

BACKGROUND

Recently, preoperative endoscopic ultrasonography (EUS) was shown to be less time consuming, posing less risk of adverse events than other more invasive diagnostic procedures used for locating insulinomas. Furthermore, laparoscopy can be part of a less aggressive approach in the management of such tumors, avoiding open surgery, which is used all out of proportion for benign small-size lesions, as insulinomas frequently are.

CASE REPORT

The reported case of pancreatic insulinoma involved a 45-year-old woman suffering from a neuroglycopenic syndrome. Tumor location was possible with endoscopic ultrasonography, which detected a hypoechoic 10 x 10-mm mass in the pancreatic tail. Tumor enucleation was accomplished laparoscopically.

CONCLUSIONS

Insulinomas may be managed with videolaparoscopy, but this approach, which is not applicable for multiple or malignant tumors, must be contraindicated also in single insulinomas located on the posterior wall or deeply in the head of the pancreas. The disadvantages of the laparoscopic approach, as compared with conventional surgery, are the absence of palpation and difficulty exploring the whole pancreas, which is partly overcome, but not completely eliminated, by EUS. The advantages are the absence of a parietal incision and good postoperative comfort. The reported low-invasive EUS laparoscopy sequence may be successful in selected cases of pancreatic insulinomas. However, it seems this treatment could be proposed for many patients affected by this benign disease.

Results of laparoscopic and open splenectomy for nontraumatic diseases

The medical records of patients who had undergone splenectomy for nontraumatic diseases of the spleen between 1997 and 2000 were reviewed. The aim of the study was to evaluate the short-term outcomes of open and laparoscopic splenectomies and to determine whether some well-known benefits of laparoscopic surgery could be observed in patients who underwent laparoscopic splenectomy for nontraumatic splenic diseases. The data of 44 patients were available for analysis and included 20 patients (45.5%) who underwent laparoscopic splenectomy and 24 patients (54.5%) who underwent open splenectomy. Various parameters were reported for open and laparoscopic procedures separately, including associated surgical procedures, spleen weight, postoperative mortality and morbidity rates, perioperative blood transfusions, use and length of abdominal drainage, accessory spleen removal, operative times, length of hospital recovery, and hematologic parameters on admission to and discharge from the hospital. Laparoscopic splenectomy was successfully completed in all 20 considered patients with no conversion to open splenectomy. The supine position and four trocars were adopted in all patients. Accessory spleens were found in four (9.0%) patients: two (4.5%) during open splenectomy and two (4.5%) during laparoscopic splenectomy. The postoperative mortality rate was 2.7% (a case of myocardial infarction). The morbidity rate was 9% (four patients), but no postoperative complications occurred after laparoscopic splenectomy. A significant statistical difference was shown by the increase in platelet counts after open versus laparoscopic splenectomy. The open and laparoscopic mean operative times (73.70 +/- 13.42 minutes and 78.42 +/- 14.63 minutes, respectively) were comparable. These times were comparable also considering patients who underwent only splenectomy. Mean recovery time was shorter after laparoscopic splenectomy (3.95 +/- 0.60 days) than after open splenectomy (7.0 +/- 1.68 days). After open procedures, however, the mean recovery time was shorter in uncomplicated cases (6.68 +/- 1.49 days) than in the open group as a whole. Authors conclude that many well-known advantages of the laparoscopic approach. especially those related to its low invasiveness, can be observed in patients requesting splenectomy for nontraumatic diseases of the spleen, without lowering the efficacy of this operation. They suggest that such advantages can be entirely displayed when selection criteria of the patients are applied.

[Biliary lesions after laparoscopic cholecystectomy]

Laparoscopic cholecystectomy is the suitable treatment for symptomatic cholelithiasis, even if the incidence of biliary lesions following this procedure may be up to threefold higher than that of open cholecystectomy. We report our experience concerning the incidence, aetiopathogenesis, diagnosis and treatment of complications in a homogeneous group of laparoscopic cholecystectomies. In a total of 492 laparoscopic cholecystectomies only three bile duct lesions were observed (0.6%); they were classified according to Bismuth and re-assessed according to Strasberg. They consisted in two biliary leakages and one bile duct stricture. All patients were evaluated by full blood test, ultrasonography and endoscopic retrograde cholangiopancreatography. Endoscopic treatment was successful in the two patients with biliary leakage, while the patient with a stricture required surgical therapy. In conclusion, we suggest that a correct knowledge of the aetiopathogenesis together with a multidisciplinary approach to the diagnosis appear to be the best method for the detection, complete classification and most suitable treatment of symptomatic cholelithiasis.

Blind versus open approach to laparoscopic cholecystectomy: a randomized study

Intraabdominal structures may be damaged during blind introduction of the first trocar for laparoscopic operations. In this study, 150 patients with gallbladder lithiasis who underwent laparoscopy were randomly assigned to two groups, a blind (V group) or an open (H group), in order to compare the results and the rate of complications. No mortality was observed. Major complications occurred in 3/75 (4%) patients of the V group and in 1/75 (1.3%) patient of the H group (p < 0.05). Minor complications occurred in 5/75 (6.7%) patients of either group. The achievement of pneumoperitoneum required 4.5+/-0.4 min in the V group and 3.2+/-0.2 min in the H group (p < 0.05). The open laparoscopic technique is safer and faster than the blind approach; therefore, it is proposed that this approach be routinely used in all laparoscopic procedures.

[Urogenital sequelae in surgery of rectal carcinoma]

Seventeen consecutive patients with rectal cancer underwent surgery at our institution between January 1988 and December 1990. The aim of this study was to assess the urogenital symptoms after radical resection of the rectum. Ten of these patients were suitable for the study, 9 of whom had an Anterior Resection (with colorectal anastomosis in 7 cases and with coloanal anastomosis in 2) and 1 a Miles operation. We observed urogenital disturbances in 2 patients (20%), 1 male with urinary tract dysfunction and 1 female with difficulties of sexual activity. The disease-free interval, at 36 months, was 100%. We suggest that curative surgery for rectal cancer can be associated, in overall cases, with a low incidence of urogenital disturbances. This allows the improvement of quality of life without evidence of loco-regional recurrence. A resective approach of rectal cancer, able to preserve nervous fiber of pelvic plexus but providing at the same time a radical excision of the tumor, seems to be a determining factor.

[Biliary scintigraphy. Application to the study of chronic cholestasis]

In a sample population of 49 subjects (7 normal, 42 with various liver diseases), the parameters of the activity/time curve of trimethylbromo-iminodicetic acid (TBIDA) biliary scintigraphy were compared with the clearances of bromosulfophthalein (BSP) and indocyanine green (ICG). Correlation between T1/2 and P2 BSP slope was r = 0.50 (n = 33; P < 0.01). Correlation between Tmax TBIDA and fractional ICG clearance (P ICG) was r = 0.65 (n = 44; P < 0.001). In 23 cases of chronic cholestasis correlations remained significant (T1/2-P2 BSP: r = 0.53; n = 17; P = 0.02; Tmax-P ICG: r = 0.59; n = 17; P < 0.01). A prospective study of 11 cases of chronic intrahepatic cholestasis (primary biliary cirrhosis 8, primary sclerosing cirrhosis 3) showed that these two types of tests varied concordantly. Biliary scintigraphy, therefore, seems to be an accurate method to explore hepatocellular mass (degree of hepatic insufficiency) and cholestasis. The validation of biliary TBIDA scintigraphy as hepatobiliary functional exploration method and the possibility to study intrahepatic "regions of interest" defined a priori would make it possible to obtain a functional estimate of hepatic segments or lobes, for example before wide liver excision.

[The use of fibrin glue in the surgery of breast carcinoma]

Twenty-four patients operated on for breast carcinoma with associated axillary node dissection were randomly assigned to two protocols. In the first group fibrin glue was applied intraoperatively, in the second group no complementary treatment was accomplished. The aim of the study was to evaluate the effect of fibrin glue in reducing postoperative axillary sero-lymphatic secretion. In the fibrin glue group a significant reduction of postoperative axillary secretion was observed.

[Reflux esophagitis. What factors influence the choice of antireflux surgery?]

The surgical goal of gastroesophageal reflux treatment is to restore the ability of antireflux barrier. The basal tone and the length of lower esophageal sphincter are commonly considered the most important factors in the assessment of gastroesophageal reflux symptoms. However, reflux symptoms may also occur after surgical correction of sphincter incompetence. In the present study, 20 patients were evaluated pre- and postoperatively by 24 hours pH monitoring, esophageal manometry, endoscopy and analysis of gastric emptying of solids, in order to verify surgical results and connected functional changes. Preoperative data suggested to perform a partial fundoplication in 12 patients and a total fundoplication in 8 cases. Our results can indicate that fundoplications are able to significantly control reflux symptoms, to improve the competence of lower esophageal sphincter and finally to normalize gastric emptying of solids. This study emphasizes the value of normalizing a delayed gastric emptying to assure a satisfactory clinical outcome. The postoperative impaired gastric emptying rates in fact appear to associate with persistent symptoms.

[The role of esophageal sphincter tonus and of gastric motility in the extent of reflux esophagitis]

Thirty-two patients with symptomatic gastroesophageal reflux disease were investigated by esophagogastroduodenoscopy, 24 h pH monitoring, esophageal manometry and measurement of gastric emptying of solids, in order to elucidate the relative importance of lower esophageal sphincter tone, amount of acid reflux and gastric emptying on the degree of esophagitis. The mechanical competency of lower esophageal sphincter was significantly deranged in patients with moderate/severe esophagitis than in patients with mild esophagitis. The gastric emptying time was significantly delayed in patients with moderate/severe esophagitis than in patients with mild esophagitis. No relationship was observed between amount of acid reflux, lower esophageal sphincter function and gastric emptying time. Our results suggest that resting pressure of lower esophageal sphincter and the gastric motor function play a major role in severity of reflux esophagitis.

[Treatment and prognosis of metachronous bilateral carcinoma of the breast]

In this study the incidence, the treatment and the survival of 7 patients with bilateral metachronous breast cancer have been evaluated. From this experience, the value of careful follow-up of mastectomized patients in order reach an early diagnosis of bilateral breast cancer is stressed.

[Vascular compression syndrome of the duodenum. Diagnostic and therapeutic update]

Superior mesenteric artery syndrome is an uncommon clinical condition. A case of duodenal vascular compression and a review of the literature are reported in order to clarify the pathophysiology of the disease. Diagnostic values of hypotonic duodenography and angiography are emphasized. Although, the significance of long-term pH monitoring and gastric emptying for preoperative study and its importance in follow-up after the surgical treatment are evaluated.

[Gastric emptying of solids in gastroesophageal reflux]

Delayed gastric emptying has been assumed to play an important role in the pathogenesis of gastroesophageal reflux (GER), even though this relationship has not been definitely established. Eleven patients with symptomatic GER were studied by esophageal manometry, endoscopy, gastroesophageal scintiscanning and gastric emptying of a mixed meal. Nine healthy subjects served as controls. Gastric emptying of solids (evaluated both as emptying half-time and emptying index) in GER patients was significantly slower than in controls. In comparison with a "normal" range previously established in 50 healthy subjects, only 2 of 11 (18.2 p. 100) of GER patients had a normal emptying rate. In addition, a significant correlation was found between the emptying half-time and the degree of esophageal lesions. These results suggest that impaired motor function of the gastric antrum could influence the natural history of GER disease and especially the appearance of esophagitis. The lack of esophageal lesions in the only two patients with "normal" emptying strongly supports this hypothesis.