Hemithyroidectomy versus total thyroidectomy in the intermediate-risk differentiated thyroid cancer: the Italian Societies of Endocrine Surgeons and Surgical Oncology Multicentric Study

The surgical treatment of the intermediate-risk DTC (1-4 cm) remains still controversial. We analyzed the current practice in Italy regarding the surgical management of intermediate-risk unilateral DTC to evaluate risk factors for recurrence and to identify a group of patients to whom propose a total thyroidectomy (TT) vs. hemithyroidectomy (HT). Among 1896 patients operated for thyroid cancer between January 2017 and December 2019, we evaluated 564 (29.7%) patients with unilateral intermediate-risk DTC (1-4 cm) without contralateral nodular lesions on the preoperative exams, chronic autoimmune thyroiditis, familiarity or radiance exposure. Data were collected retrospectively from the clinical register from 16 referral centers. The patients were followed for at least 14 months (median time 29.21 months). In our cohort 499 patients (88.4%) underwent total thyroidectomy whereas 65 patients (11.6%) underwent hemithyroidectomy. 151 (26.8%) patients had a multifocal DTC of whom 57 (10.1%) were bilateral. 21/66 (32.3%) patients were reoperated within 2 months from the first intervention (completion thyroidectomy). Three patients (3/564) developed regional lymph node recurrence 2 years after surgery and required a lymph nodal neck dissection. The single factor related to the risk of reoperation was the histological diameter (HR = 1.05 (1.00-1-09), p = 0.026). Risk stratification is the key to differentiating treatment options and achieving better outcomes. According to the present study, tumor diameter is a strong predictive risk factor to proper choose initial surgical management for intermediate-risk DTC.

Prolonged iatrogenic thoracic duct chylous fistula in Neck Surgery: conservative management or surgery? A Literature review

BACKGROUND

Thoracic duct chylous fistula is a rare complication following neck surgery, especially for malignant disease. Despite its low incidence, it can be a life-threatening postoperative complication increasing the risk of infection, bleeding, hypovolemia, electrolyte imbalance, and malnutrition. Currently, the management of thoracic duct fistula is not standardized yet. It can range from conservative to surgical approaches, and even when surgery indication occurs, there is no unanimous agreement on timing and operative steps, so the surgical approach still remains mostly subjective, in accordance with clinical conditions of the patients and with surgeon's experience.

AIMS

The aim of the study was to search into Literature a common accepted behaviour in thoracic duct chylous fistula occurring.

METHODS

A literature review was carried out. Conservative treatments include fasting associated with total parental nutrition or low-fat diet, compressive dressings, and octreotide administration. If conservative treatment fails, in order to avoid dangerous consequences, functional repair of the thoracic duct injury with lymphovenous microanastomosis should be the preferred solution, rather than an approach that obliterates the thoracic duct or lymphatic-chylous pathways, such as thoracic duct embolization, therapeutic lymphangiography, and thoracic duct ligation.

CONCLUSIONS

In our experience, patients undergone thyroidectomy and neck dissection for thyroid-differentiated cancer, who report an unrecognized thoracic duct chylous fistula after surgery, must be treated via integrated conservative and surgical treatment. A literature review about thoracic duct chylous fistula following neck surgery, focusing on the current management and therapeutic approach, was furthermore carried out, in order to delineate the actual therapeutic options in case of thoracic duct chylous fistula occurrence.

Long-term outcomes following "presumed" total parathyroidectomy for secondary hyperparathyroidism of chronic kidney disease

AIM

The most efficacious surgical treatment for renal hyperparathyroidism is still subject of research. Considering its low incidence rate of long-term relapse, "presumed" total parathyroidectomy without autotrasplantation (TP) may be indicated for secondary hyperparathyroidism (2HPT) in patients with chronic kidney disease (CKD), not eligible for kidney transplantation. The aim of this study was to analyse the TP long-term results in 2HPT haemodialysis (HD) patients.

METHOD

Between January 2004 and October 2009, 25 2HPT HD patients, not eligible for kidney transplantation, underwent TP of at least four parathyroid glands. Clinical status and intact parathyroid hormone (iPTH) serum levels were assessed intraoperatively and during a 36-month follow-up.

RESULTS

TP improved the typical clinical symptoms and a significant reduction of iPTH serum levels was achieved in each patient. Aparathyroidism was never observed; in case of severe postoperative hypocalcemia, hypocalcemic seizures were never reported and the long-term recurrence rate was 8%. Only one patient received a kidney transplantation. Postoperative cardiovascular events (hypertension, peripheral artery disease, arrhythmia, coronary or cerebrovascular disease) were observed in 32% of cases and mortality rate was 16%.

CONCLUSIONS

Considering its low long-term relapse rate and the absence of postoperative aparathyroidism, TP may still be considered the treatment of choice in patients with aggressive forms of 2HPT or of advanced dialytic vintage, with no access to renal transplantation. In case of postoperative hypoparathyroidism, hypocalcaemia can be effectively managed by medical treatment.

[Retroperitoneal dedifferentiated liposarcoma (DDLS) with hyperglycemic activity: case report and literature review]

The authors describe a Retroperitoneal De Differentiated LipoSarcomas (DDLs), that for its clinical behavior shows peculiar characteristics and original aspects: typical is the recurrence due to local invasiveness, but absolutely original seems to be the surviving time, maybe correlated to its histological evolution (dedifferentiation from leiomyosarcoma to liposarcoma) and an interesting correlation from the tumor recurrence and the glycemic curve first and after the surgical treatments. A 66-year-old woman, presenting typically with very big abdominal masses, treated three times in almost three years, every time with aggressive surgical treatments. Histological response was leiomyo-sarcoma in the first two operations and liposarcoma in the last treatment and in every preoperative phase the patient, normally prediabetic, started to have problem of glycemia balancing, needing an insulin support until the postoperative phases when its glycemia was coming back in normal value without insulin needs, of course until a new tumor recurrence. This last aspect, not depending on pancreas involvement or hormonal activity (immune-histo-chemistry was never conforming a neuro-endocrine activity), seems probably due directly to a mass and metabolic effect of the tumor. Beginning from the description of this case and its interesting biology and reviewing most of the literature on the argument, authors hope to give our support to still debated and partially unknown aspects of these kinds of tumors.

Ultrasound scissors versus electrocautery in axillary dissection: our experience

The ultrasound scissors are recently emerging as an alternative surgical tool for dissection and haemostasis and have been extensively used in the field of minimally invasive surgery. We studied the utility and advantages of this instrument compared with electrocautery to perform axillary dissection. The operative and morbidity details of thirty-five breast cancer patients who underwent axillary dissection using the ultrasound scissors were compared with 35 matched controls operated with electrocautery by the same surgical team. There was no significant difference in the operating time between the ultrasound scissors and electrocautery group (36 and 30 mins, p>0.05). The blood loss (60 +/- 35 ml and 294 +/- 155 ml, p<0.001) and drainage volume (200 +/- 130 ml and 450 +/- 230 ml, p<0.001) were significantly lower in the ultrasound scissors group. There was a significant reduction of draining days in ultrasound scissors group (mean one and four days, respectively p<0.05). There was significant difference in the seroma rate between the two groups (10% and 30%, respectively). Axillary dissection using harmonic scalpel is feasible and the learning curve is short. Ultrasound scissor significantly reduces the blood loss and duration of drainage as compared to electrocautery.

Biliary tract injuries during laparoscopic cholecystectomy: three case reports and literature review

INTRODUCTION

Biliary tract injuries (BTI) represent the most serious and potentially life-threatening complication of cholecystectomy. During open cholecystectomies (OC), the prevalence of bile duct injuries has been estimated at only 0.1-0.2%. We report 3 cases of BTI during laparoscopic cholecystectomy (LC). CASE 1: Ascalesi Hospital, Naples 2003-2007, 875 LC (BTI 0,11%). During the dissection of triangle of Calot a partial resection of biliary common duct was made. Immediately the lesion was evident and sheltered in laparoscopy, suturing with a spin reabsorbable, without biliar drainage. The post-operative outcome was good, without alteration of the some parameters, and the patient was discharged after three days. At the last follow-up (January 2006) the cholangiography didn't show stricture or leakage. CASE 2: General and Laparoscopic Surgical Unit San Giovanni di Dio Hospital Frattamaggiore 2004-2007, 720 LC (BTI 0,13%). Patient affected by cholecystitis with gallstones. The patient did not present jaundice, but abdominal pain, leucocitosis, fever and US evidence of parietal gallbladder inflammation. LC was performed after 36 h; during operation, common biliar duct was misidentified for subverted anatomy caused by inflammation. The common bile duct was clipped, and the patient presented jaundice after three days after operation. The colangiography was performed showing the stop. Therefore a reoperation was needed and laparotomic Roux-en-Y hepaticojejunostomy was performed. CASE 3: Dpt of Emergency Surgery, Second University of Naples 2000-2007, LC 520 (BTI 0,19%). Patient affected by more than 20 years symptomatic cholelithiasis, with only obesity risk factor; she underwent laparoscopic cholecystectomy and sudden bleeding of the cystic artery, poor vision and probably the long history of symptoms, producing a flogistic alteration of the anatomy, caused a misidentification of the cystic duct and the common bile duct with complete or lateral clipping of the common hepatic duct. The error was unrecognized intra-operatively but after progressive jaundice the postoperative colangiography showed a nearly complete stop by two clips. Roux-en-Y hepaticojejunostomy with intraoperative cholangiographic control was performed.

DISCUSSION

The most common cause of BTI is the failure to recognize the anatomy of the triangle of Calot. This is attributed to factors inherent to the laparoscopic approach, to inadequate training of the surgeon and to local anatomical risk factors. The laparoscopic "learning curve" of the surgeon is the most important factor of bile ducts injury. But also local anatomical risk factors are important such as acute cholecystitis, severe chronic scarring of the gallbladder and bleeding or excessive fat in the hepatic hilum. These local risk factors seem to be present in 15% to 35% of BTI. Abnormal biliary anatomy, such as a short cystic duct or a cystic duct entering into the right hepatic duct also may increase the incidence of BTI. Schematic representation of the common mechanisms of BTI during LC are: misidentification of the cystic duct and the common biliary duct, lateral clipping of the common biliary duct, traumatic avulsion the cystic duct junction, diatermic injury of common biliary duct during dissection of the Calot triangle or during the cholecystectomy, injury of anomalous right hepatic duct.

CONCLUSION

Conversion to laparotomy, in difficult cases involving inflammatory changes, aberrant anatomy or excessive bleeding, is not to be considered as a failure but rather as good surgical decision in order to ensure the patient's safety.

New trends on fibrin glue in seroma after axillary lymphadenectomy for breast cancer

BACKGROUND

Axillary lymphadenectomy remains an integral part of breast cancer treatment, yet seroma formation occurs in 15-85% of cases. Among methods to reduce seroma magnitude and duration, fibrin glue has been proposed in several studies with controversial results.

PATIENTS AND METHODS

Ninety patients underwent quadrantectomy or mastectomy with level I/II axillary lymphadenectomy; a suction drain was fitted in all patients. Fibrin glue spray were applied to the axillary fossa in 45 patients; the other 45 patients were treated conventionally.

RESULTS

Suction drainage was removed between post-operative (p.o.) days 3 and 4. Seroma magnitude and duration were significantly reduced (p 0.004 and 0.02, respectively), and there were fewer evacuative punctures, in patients receiving fibrin glue compared with the conventional treatment group.

CONCLUSIONS

Use of fibrin glue does not always prevent seroma formation, but does reduce seroma magnitude, duration and evacuative punctures.

Ductal carcinoma in situ of the breast: our experience

AIM

The ductal carcinoma in situ (DCIS) is a more and more frequent neoplasia, representing over 25% of diagnosed breast cancer in recent surveys.It is particularly interesting as concerns several aspects of which the most important are issues linked to clinical diagnosis and the difficulties of histopathological classification, with evident and important therapeutic implications.

PATIENTS AND METHODS

The authors report their experience about 161 ductal carcinoma in situ of the breast. Guidelines for surgical treatment are: radiological or clinical diagnosis, tumor's extension, histological classification, grading and margin status. At the present the authors prefer breast conserving surgery with tumor margin's study. They report their experience in the last seven years about sentinel lymph node biopsy.

RESULTS

The most frequent histotype resulted comedocarcinoma (61,8%) followed by non comedo (38,2%). Local recurrence after DCIS therapy is 6,1%.

CONCLUSIONS

80-90% of the patients currently treated for DCIS present non-palpable breast lesions at diagnosis. Breast conserving surgery is the first choice and radiotherapy and endocrine therapy are indicated for selected patients.

[Non recurrent inferior laryngeal nerve: our surgical experience]

AIM

Iatrogenic damage to the recurrent laringeal nerve is the most feared complication in thyroid surgery and the main cause for vocal cord palsy. Prevention of such a lesion is based upon the thorough search for the nerve along its anatomic pathway. In the present study the Authors discuss an important anatomic variation: non-recurrent inferior laryngeal nerve, emphasizing the aspects of surgical anatomy, on the basis of their own experience in neck surgery.

MATERIALS AND METHODS

The study takes into conideration 301 surgical interventions on the thyroid gland, in 268 women and 33 men; consisting in 256 total thyroidectomies and 45 loboisthmectomies, as follows: 186 for nodular goiter, 48 for follicular nodule, 34 for papillifer carcinoma, 33 for toxic goiter. The identification and exposure of inferior laryngeal nerve was performed according to the principles and technique by Lahey.

RESULTS

The overall prevalence of non recurrent inferior laryngeal nerve was equal to 0.33% (1/301 operations). The anomaly is prevailing on the right side, being due by an anomalous reabsorption of the IV ventral arch. This is the cause of the formation of a subclavian artery that is responsible for dysphagia lusoria.

CONCLUSIONS

The rationale for the preservation of recurrent nerve is its systematic identification and exposure along all its course from its laryngeal entry. Diagnosis of non recurrent inferior laryngeal nerve is exclusively intra-operative. The anomaly is clinically asymptomatic and its suspicion can be posed in case of vascular anomalies or dysphagia. In such a circumstance the golden diagnostic tool is the angio Tc-RMN, while both the EGDS and baritate esophagous can be of some diagnostic help.

Plurifocal breast cancer and double lymphatic spread

BACKGROUND

Sentinel node (SN) has been proved to be a reliable technique in predicting the lymph nodes state of the axilla in breast cancer. For the majority of the authors the intradermal and peritumoral injection is the best way.

PATIENTS AND METHODS

Our experience, from 1997, includes 587 cases of SN in women with resectable breast cancer less than 3 cm of diameter. We performed the lymphoscintigraphy after a peritumoral injection of radioactive tracer and, if the lesion was superficial, we associated an intradermal injection on the skin above the lesion itself. Two patients had multifocal right breast cancer. We did two separate injections around each tumor.

RESULTS

The radioactive tracer spread towards the internal mammary chain and homolateral axillary nodes.

CONCLUSIONS

We consider the peritumoral injection as essential in tumors located deeply in the breast (under ultrasound guide if not palpable) together with intradermal injection in superficial ones. Using this technique the possibility of a mis-identification of the SN is reduced.

Fibrin glue to reduce seroma after axillary lymphadenectomy for breast cancer

Axillary lymphadenectomy remains an integral part of breast cancer treatment, yet seroma formation occurs in 15-85% of cases. Among the methods employed to reduce seroma magnitude and duration, fibrin glue has been proposed in numerous studies with controversial

RESULTS

Sixty patients underwent quadrantectomy or mastectomy with level I/II axillary lymphadenectomy; a suction drain was fitted in all patients. Fibrin glue spray was applied to the axillary fossa in 30 patients; the other 30 patients were treated conventionally. Suction drainage was removed between postoperative days III and IV. Seroma magnitude and duration were significantly reduced (P=0.004 and 0.02, respectively), and there were fewer evacuative punctures, in patients receiving fibrin glue compared with the conventional treatment group. The authors conclude that the use of fibrin glue does not always prevent seroma formation, but does reduce seroma magnitude, duration and necessary evacuative punctures.

Surgical treatment of differentiated thyroid carcinoma: a retrospective study

INTRODUCTION

We carried out a retrospective analysis of our experience in the management of Differentiated Thyroid Carcinoma (DTC), in order to better define prognostic factors (age, gender, histological type, stage) and outline a standard procedure, where it's possible, for surgical treatment.

PATIENTS AND METHODS

Patient population consisted of 432 cases, operated from 1978 to 2003. We carried out 285 operations of total thyroidectomy of which 39 associated to some kind of lymphadenectomy, 66 totalization (21 pts had been operated in other institutes), 60 subtotal thyroidectomies and 21 lobo-isthmectomies. Survival and mortality curves for age, sex, histological type, grading and staging have been calculated. Kaplan-Meyer statistical elaboration for disease-free interval and Mann-Whitney test for the comparison of different clinical and pathological data have been employed.

RESULTS

The statistical analysis puts in evidence that on 432 cases examined, with a follow-up from 1 to 25 ys (median = 6.33 ys) and with a drop-out of 60 cases (13.8 %), total mortality for cancer has been of 24 cases (6,4%), with a median interval free by disease of 4.2 ys (range 5 months to 25 ys), and a probability to stay free by disease at 12 and 24 months respectively of 95.1% and 91.6%. The median survival is resulted of 5.8 ys (range 1 to 25 ys) with a probability of survival at 24 and 48 months respectively of 97.5% and 94.3%. The multivariate analysis evidences the most important variables, i.e. age > 45 ys, tumor of intermediate malignancy, with size 1.5 cm, operative M+, significantly condition the prognosis, noticeably getting worse it, independently by the kind of carried out operation.

CONCLUSION

Our present therapeutic choices are: 1. total thyroidectomy in the treatment of the apparently benign pathology when bilaterally with spread; the checking at the final histological exam of a cancer makes however think adequate the carried out operation; 2. lobo-isthmectomy in the treatment of unilateral benign pathology or with suspect FNAB for follicular neoplasm; the histological checking of a cancer makes think the operation adequate only in presence of favourable prognostic parameters, but in presence even of just one unfavourable variable, we consider necessary the totalization; 3. total thyroidectomy in presence of a certain or strongly suspected preoperative diagnosis of cancer.

Surgical treatment with Ligasure Precise of schwannoma of brachial plexus: case report

English version We present a case of bulky schwannoma arising from the brachial plexus treated by a new surgical device. A 38-year-old man presented with a slow-growing left-sided supraclavicular mass and complained paresthesia of the third and forth fingers of the hand and forearm weakness. Physical examination revealed Tinel's sign. A CT-scan revealed a solid mass situated in the left profound supraclavicular fossa. The tumour was resected with the utilization of bipolar vessel sealing system (Ligasure Precise). This device is very useful in sutureless removal of masses localized in deep supraclavicular fossa. During the operation, care was taken to preserve the nerve function.

[Is extrauterine endometriosis confined to the gynecological sphere? A critical review of the experience in a general surgery unit]

Extrauterine or external endometriosis (e.e.) describes ectopic localization of functional endometrial tissue, a finding whose incidence is increasing due to the diffusion of laparoscopic procedures. The clinical presentation of such disease is often non-specific, even in those cases with a definite surgical indication, depending on the site and pathology of the lesions. Surgical planning is therefore difficult at times, specifically regarding the extent of resection in patients--as young women--willing to maintain fertility. The Authors report on 7 cases observed in their own experience (inguinal endometriosis--1 case, umbilical endometriosis--1 case, abdominal wall endometriosis--3 cases, intestinal endometriosis--1 case, diaphragmatic endometriosis associated with pneumothorax--1 case), representing the wide range of clinical settings related to e.e. Based on literature data, an analysis of clinical and diagnostic issues is carried out. Specifically, the problems related to extent of surgical resection in multifocal cases, possible malignant degeneration and localization on abdominal wall scars are discussed.

[Male breast cancer. Five years experience and literature review]

Male breast cancer is an uncommon disease and its aetiology, clinical behaviour and treatment is not well-known . Retrospective studies show that age and stage-matched breast cancer in men and women are compared. Nevertheless, the poor mammary tissue in man allow a rapid local infiltration, late diagnosis and poor survival rate. The Authors report their five years experience and with a short literature review they summarise what is currently known about this uncommon neoplasm in terms of prognostic factors, therapy and survival.

[Thyroid microcarcinoma: our experience]

Differentiated thyroid cancer had an excellent prognosis; the diagnosis of sub-centimetric differentiated cancer (microcarcinoma) is more and more frequently. Clinical evolution of microcarcinoma could be various: microcarcinoma can represent an autoptic finding or can evolve with locoregional lymph node involvement or metastasis. Various clinical and genetic factors have been considered to predict the aggressiveness of this neoplasm. From 2001 to 2004, 74 patients with diagnosis of thyroid microcarcinoma underwent surgical treatment. By a retrospective survey we evaluated risk factors and the choice of surgical treatment. The aggressiveness appear to be related mainly to multifocality and size. Our therapeutic strategy is to perform total thyroidectomy for benign pathologies, total thyroidectomy with lymphadenectomy in cases with preoperative diagnosis of microcarcinoma.

Breast surgery and sentinel node biopsy. Our experience

Massive campaigns of screening of breast pathologies improved early diagnosis of breast cancers. Most of these cancers are small-sized (T1) and seldom show intraoperative nodal involvement. Sentinel node biopsy is the elective choice in the above mentioned cases because, if negative, it avoids axillary dissection. International literature reports rates of false negative sentinel node biopsy ranging among 4.5 and 12%; results in our experience account for almost 6%. As a consequence, there is the definite risk of potentially positive axilla that will not be dissected with subsequent risk of axillary recurrence within 24 months. The reason of that could be related to the fact that in Referral Centers this technique is performed in strictly selected patients, so as to gain a diagnostic accuracy of 98%. The rate of axillary recurrences does not justify the routine axillary dissection, since this is just a staging, not a therapeutic procedure. In case of doubt, it can be recommended a close and careful follow-up of the axilla.

Seeding from hepatocellular carcinoma after percutaneous ablation: color Doppler ultrasound findings

BACKGROUND

We describe the clinical and color Doppler ultrasound findings in a series of cases of seeding from hepatocellular carcinoma (HCC) observed in patients treated with percutaneous ablation therapy (PAT) over a 15-year period.

METHODS

We reviewed the clinical and imaging records of 12 patients with cirrhosis (nine men and three women, age range 51-82 years, mean age 63 years) that showed neoplastic seeding from HCC occurring after one or more PAT procedures. Five of 12 cases of seeding were observed as a complication of 1080 PAT procedures (0.46%) performed in 545 patients (0.96%) by two of the authors (L.T., G.F.) over a long period (15 years) at different institutions. The other seven patients had been treated with PAT procedures at other institutions and had come to our attention during post-treatment follow-up.

RESULTS

The 12 patients who had seeding nodules had undergone the following PAT procedures: multisession conventional percutaneous ethanol injection (PEI) without anesthesia (four patients), single-session PEI with general anesthesia (three patients), single-session PEI with general anesthesia plus multisession conventional PEI (four patients), and single-session PEI plus radiofrequency ablation (one patient). Seeding nodules ranged from 0.9 to 6.0 cm (mean 1.7 cm). Eleven of 12 seeding nodules appeared as hypervascular hypoechoic nodules with smooth and regular margins and multiple intralesional vascular signals.

CONCLUSIONS

Clinical and imaging findings of seeding from HCC should be recognized by physicians who perform follow-up ultrasound examinations of patients who are treated with PAT. Early diagnosis of seeding can be reliably made by scanning the abdominal wall with small probes in the area where the previous PAT has been performed. Hypoechoic hypervascular pattern of the seeding nodule allows definitive diagnosis.

Which therapy to prevent post-thyroidectomy hypocalcemia?

Hypocalcemia is one of the most frequent complications after total extracapsular thyroidectomy (TET). In most of cases it is a transient phenomenon. The aim of this study is to evaluate if and how the oral administration of calcium or calcium combined with D-vitamin could effectively prevent post-thyroidectomy hypocalcemia. A randomized prospective study was performed, recruiting 120 patients who underwent total thyroidectomy. The patients in our series were randomly assigned to one of two groups: group A--patients who received calcium lactogluconate/calcium carbonate (mg 300 per day); group B--patients who received calcium carbonate/cholecalciferol therapy (calcium carbonate: 1500 mg per day; cholecalciferol 400 UI per day). The groups were well matched for age, sex and pathologies. Patients of both A and B groups were divided in two subgroups: those operated on for benign thyroid diseases (A1 and B1) and those operated on for malignancy (A2, B2). Serum calcium assays, performed 24, 48 and 72 hours after surgery, showed mean values of calcemia higher in patients of the B1 and B2 group. Statistical analysis was performed using a Student's t test. Mean serum calcium concentrations on post-operative day one, two and three were higher in patients of the group B (p<<0.01). Early and combined oral administration of both calcium and vitamin D seemed to prove major efficacy in preventing and treating post-operative hypocalcemia, showing mean serum calcium levels higher than those of patients who received only oral calcium administration. Nevertheless, further studies are necessary to validate these data.

Major complications in thyroid surgery: utility of bipolar vessel sealing (Ligasure Precise)

In the present study the Authors tried and assess the advantages of the standard sutureless thyroidectomy performed by the Ligasure Vessel Sealing System, thanks to the use of the dedicated Precise handle. The Authors compared the efficacy of haemostasis and the economical impact of the device, in terms of drug administration and costs. The Authors comparatively analyzed 120 total extracapsular thyroidectomies (TET) performed by the standard operative technique (Group A, control) and 70 TET achieved by the "sutureless technique" (Group B, case). There was a statistically significant decrease of transient postoperative hypocalcemia (5.71% vs 7.5%) and also of mean operative time (about 20 minutes) in patients of the group B. Non significant decrease of other kind of complications (postoperative hemorrhage, transient and permanent inferior laryngeal palsy, stupor of the superior laryngeal nerve, seromas) were also observed. The use of the Ligasure Precise resulted easy, safe and efficient in the Authors' experience. It allowed the decrease of postoperative haemorrhages and mean operative time.

[Interstitial laser photocoagulation in liver tumours: our experience]

Interstitial lasertherapy (ILT) is one of the percutaneous thermal procedures allowing the ablation of primary or secondary hepatic lesions. This technique can be performed without general anaesthesia, since the patient is completely painless, in spite of the high temperatures reached, because there are no sensitive fibers around the lesion. This study includes patients with small hepatocarcinomas (< 2 cm) non peripherically sited, far from the gallbladder and the hepatic hilum. Twenty patients suffering from 24 cirrhotic hepatocarcinomas (two patients showed two nodules) have been enrolled for the present study. Mean diameter of lesions was 1.8 cm (1.3-2 cm). One or more 21 G (length 20 cm) Chiba's needles were inserted under sonographic view into the lesions. The laser energy was switched on at 4 Watts for 4-6 minutes, until an amount of energy of 900-1800 Joule was reached. All the patients were discharged 48 hours after the procedure. Triphasic CT-scan with contrast were performed 7 to 14 days after ILT, in order to check its efficacy. CT-scan showed complete necrosis in all the nodules ranging from 1.5 to 3 cm. All the patients received only one IL T session, whose longest duration was 20 minutes. No major complications occurred. ILT of small hepatocarcinomas is a safe, efficient procedure, also feasible without anaesthesia. Differently from percutaneous radiofrequency, in fact, it shows the advantage of less pain, that can avoid the need for general anaesthesia.

[Bile leakage after laparoscopic cholecystectomy: report of three cases in our experience]

Laparoscopic cholecystectomy (LC) is associated with an higher incidence of bile duct injury than open cholecystectomy. There has been concern and the reason why bile leakages are more frequent with LC is yet unclear. Bile collections can occurr because of major about (75%) or minor (about 25%) injuries. Anyway, external biliary decompression is a key factor in the treatment, in order to avoid an emergency intervention. The Authors report their experience concerning 3 cases of bile leakages among a series of 458 LC. Only in one of the three cases the subhepatic space was not drained and an emergency laparotomy was performed. The Authors, on the basis of their own experience and of the data reported in literature, suggest the routinary intraoperative placement of a drainage into the subhepatic space, to be removed, if no complications occur, one day after surgery.

[Intrahepatic cholangiocarcinoma: case report]

The primitive tumors of the liver are relatively rare in the Western countries (around the 0.7% of all the neoplasms) while they present more elevated incidence in Africa and in the South Asian East. While the hepatocellular carcinoma rises up in the 50-70% of the cases in livers cirrosis, this correlation is not valid for the form of carcinoma to departure from the learned intra and extra biliar. The etiology of the intrahepatic colangiocarcinoma (CC) stays unknown. They have stayed observe, on the other hand, of the conditions sometimes correlated to the development of the CC (Carolí morbs, ulcerative colitis, asbestosis). The CC usually rises up from the epithelial cells of surface that delimit the biliary ducts, although different studies suggest that these tumors can also originate from the learned smaller biliary ducts, from the hepatic cysts of the policistic illness and from the complexes of von Meyenburg. The low incidence of the CC, the clinical atypical debut, the not facility of a precise diagnosis have aroused our interest so that the present job wants to be a modest scientific contribution to this type of pathology.

[Interstitial laser treatment of small hepatocarcinoma on cirrhosis without anesthesia: feasibility study]

OBJECTIVE

We evaluated if interstitial laser photocoagulation (ILP) under ultrasound (US) guidance of intraparenchymal small HCC (<2 cm) in cirrhosis can be safely and effectively performed without any anesthesia.

PATIENTS AND METHODS

Twelve cirrhotic patients with 14 nodules of HCC (diameter 1.2-2.0 cm; mean: 1.7) underwent ILP. All procedures were performed without local or general anesthesia. Necrosis of the nodules was evaluated with triphasic contrast-enhanced CT.

RESULTS

Post-treatment CT showed complete necrosis in all cases. Pain occurred in 5 patients during the treatment was treated with iv pain-killer and only in 1 case the procedure was stopped before the scheduled time. No major complication occurred.

CONCLUSIONS

ILP under US guidance is feasible without any anesthesia in patients with small intraparenchymal HCC.

[Intrahepatic biliary cystadenoma: case report]

According to the OMS classification of the epithelial benign neoplasm of the liver, the adenomas represent the most important group. In literature an increase of their incidence in the last years is reported especially in the female sex, in relationship to the diffusion of the use of hormonal contraceptives. The biliar cistoadenoma (BCA) represents a not frequent neoplasm of the liver that has origin on the inside of the liver, and less frequently from the extrahepatic biliar system. The surgical interest is underlined by the potentiality of the malignant evolution of the lesion and by its high tendency to the relapse. The real difficulty is represented by differential diagnosis from the other cystic lesions of the liver and by the need of its radical excision and therefore of real hepatectomy.

Gastrointestinal tumours in elderly

The Authors report their experience concerning 129 cases of gastrointestinal neoplasms (gastric, colonic, anorectal), recorded during the last years among patients aged between 70 and 81 years, who underwent radical surgery. The main issues evaluated were: anaesthesiological risk, stage, post-operative mortality and morbidity. Elderly seems not to be a contraindication, nor a limit for surgery if the patient is correctly and strictly managed pre and post-operatively.

[Hormonal therapy in oncologic treatment: pathogenic hypotheses and interactions between thyroid and breast pathologies]

INTRODUCTION

The aim to individuate the eventual correlation between the two pathologies has justified deeper studies to achieve new prospective approaches for both disease.

BACKGROUND

We have selected 4 groups of patients who presented an association between the two pathologies: a) malignant breast pathology associated to a malignant thyroid pathology, b) patients with breast carcinoma who presented association with some thyroid alterations, c) patients with thyroid carcinoma who presented association with some breast alterations, d) patients who presented some associations between benign breast pathology and benign thyroid pathology.

MATERIALS AND METHODS

We have excluded all patients with a clear physiological or surgical menopausal status, and we've so considered only patients with a regular menstrual cycle. We've so selected a group of 120 patients and we've performed in all these patients during the early follicular phase the following exams: breast echographic evaluation and thyroid echographic-structure and volume determination and finally hormonal determinations we have so obtained two breast subgroups: 32 patients with hyperestrogenic integrative hormonal characteristics, 28 patients subjected to adjuvant hormonal therapy with hypoestregenic hormonal status and finally two thyroid subgroups, 22 patients showing clinical or subclinical hypothyroidism, 38 patients showing clinical or subclinical hyperthyroidism. We've compared these data to a random age-matched health control women group of 25 patients.

RESULTS

The first group of patient showed a thyroid hormonal pattern of subclinical hypothyroidism or at least free T3 and free T4 mean value currently under and TSH and TPO Ab levels curve currently over the mean values of the control group. The second group showed the TSH suppressed with free T3 and free T4 curves currently over the mean value of the control group. The third group showed slight elevations in serum PRL levels curve. The fourth group showed increased estrogen levels-curve, often over the mean value of the control group.

CONCLUSION

How much is it allowed to perform an hormonal therapy, specially for a benign pathology if we're not yet able to understand the deep and unknown interaction between breast and thyroid?

[Total implantable venous systems in day surgery]

Total implantable venous system (port-cath)in day surgery.

AIMS

Most of patients underwent to a total implantable venous system (port-cath) can be treated in day surgery.

METHODS

Since January 2000 to March 2003 we have implanted 31 port-a-cath, preferring access in subclavia v. We've treated all patients in day surgery and we've performed a Rx-control with a medium follow up of two hour.

RESULTS

We have not reported any early complication, only 3 late complications: a device malfunction, a "kinking" reservoir and an infection of the subcutaneous pocket. The last two complications have required the explantation of the device. In difficult catheterizations can be helpful to use a pediatric kit. The rules of an aseptic and antiseptic operative procedure and the utilization of a short term antibiotic prophylaxis can avoid infective complications. We have proposed, after the device implantation, cardioaspirina like preventive therapy of septic and no septic thrombosis. In the thrombotic occlusion of the catheter we propose the use of activase. In malfunction's prevention we propose a lateral placement (to the skin incision) of the subcutaneous pocket and a 45 degrees reservoir rotation.

CONCLUSIONS

The total venous system (port-cath) implantation can be mostly performed in day surgery, improving the compliance of the patients with a low cost procedure.

[Cancer risk in breast lesions: diagnostic and therapeutic strategy]

BACKGROUND

The classification, diagnostic recognition and surgical treatment of breast lesions at risk of neoplastic transformation represent some of the most important objectives in breast research. Attention has been focused on lesions at risk of neoplastic transformation in breast pathology, such as: atypical ductal hyperplasia (ADH), atypical lobular hyperplasia (ALH), multiple intraductal papilloma and sclerosing adenosis.

METHODS

Our experience regards activity carried out from 1996 to 2001; the diagnostic approach included routine performance of echotomographic examination, mammography screening indicated in women >40 and, in selected cases, in women <40; FNAB was carried out in all lesions containing suspicious cells. In the case of non-palpable lesions we carried out a CT-guided FNAB using the stereotaxic technique. In cases of secreting breast, galactography proved useful. As regard clinically suspect nipple secretions, cytology was useful in the diagnosis of intraductal papillomatous lesions. Surgery was indicated for: mammographically negative nodular lesions with cytological finding of suspect lesions. Continuous, spontaneous mono-orificial, serous, sero-hematic or hematic secretion of the nipple also in the presence of negative and/or inconclusive galactographic and cytological findings. From a nosological viewpoint we have distinguished 3 groups: A) 49 women (average age 47.3 years) with suspect lesions subjected to biopsy. On the basis of the cytological response we carried out: 37 quadrantectomies with extemporary examination, 4 excisional biopsies, 5 radical ductectomies and 3 microductectomies. B) 26 patients (36.7 years) subjected to mammary biopsy for non-suspect lesions; in 24 cases excisional biopsy of the lesion and in 2 cases radical ductectomy. C) Control group consisting of 141 women (average age 44.5 years) suffering from benign pathology not suspected of lesions at risk and not subjected to surgery.

RESULTS

The final histological examination evidenced: Group A: 7 cases of T1aN0M0 carcinoma (14.3%); 20 lesions at risk (40.8%); 22 lesions not at risk; Group B: 25 (96.1%) lesions not considered at risk, in 1 case (3.9%) area of sclerosing adenosis with ductal proliferation and slight atypias; Group C: in 4 cases (3.1%) the onset at follow-up of lesions at risk made it necessary to remove the lesion. Histology did not confirm the presence of cancer in any case.

CONCLUSIONS

The diagnostic and therapeutic protocol proposed enables us to identify and radically treat high risk patients (Group A) and follow them up closely. On the contrary, Group B evidenced a very low incidence of lesions at risk which escaped preoperative diagnosis and in confirmation of this in Group C, during follow-up, the onset of only 4 lesions at risk was identified in which histological examination however excluded the presence of cancer.

[Post-thyroidectomy hypocalcemia. Personal experience]

BACKGROUND

The study evaluates the incidence of both early and protracted post-thyroidectomy hypocalcemia over a 6-year period (1995-2000) in a series of 330 consecutive thryoid operations. The aim was to identify the profile of patients with the greatest risk of permanent parathyroid functional insufficiency and a suitable treatment protocol.

METHODS

Having performed a statistical ana-lysis of all the variables, we divided the entire population of 330 patients into 4 groups based on the extent of demolition, the method of organotherapeutic replacement with L-Thyroxine and the (eco-radioguided) procedure used to identify the parathyroids: 59 patients undergoing subtotal thyroidectomy; 155 patients undergoing total thyroidectomy who commenced replacement organotherapy from postoperative day 15-30; 94 patients undergoing total thyroidectomy who commenced replacement organotherapy from postoperative day 1; 22 patients undergoing total thyroidectomy who underwent routine intraoperative parathyroid assay.

RESULTS

The results show that the impact of more radical surgery in determining hypocalcemia, in particular protracted hypocalcemia, represents the most striking characteristic of patients with the greatest probability of permanent parathyroid insufficiency. We emphasise that early correction of postoperative hypothyroidism can drastically reduce the incidence of both early and protracted hypocalcemia.

CONCLUSIONS

In conclusion, hypoparathyroidism is an exceptional event, whereas hypocalcemia is relatively common after total thyroidectomy. The effects of the early correction of postoperative hypothyroidism are undoubtedly beneficial, as is the use of eco- and radioguided methods for the intraoperative identification of the parathyroid glands, although they are not free from limits and criticism.

[Carotid glomus tumours. Personal experience in the surgical treatment of chemodectoma]

The authors present 6 cases of carotid glomus tumours referred to their attention over the past 10 years. Their experience shows that colour ultrasonography (using both morphological and functional evaluation) is the diagnostic key for defining the treatment of paraganglioma. More recent experience highlights the role of 111In Pentreotride using a multidisciplinary therapeutic approach.

[Efficacy of somatostatin analogs in the treatment of neuroendocrine tumours and paraneoplastic syndromes]

BACKGROUND

The authors report their experience with octreotide LAR in the adjuvant treatment of 10 patients suffering from neuroendocrine tumours and paraneoplastic syndromes.

METHODS

All patients were studied preoperatively using traditional radiology and scintigraphy using octreoscan.

RESULTS

Octreoscan was positive in all cases for somatostatin receptors. All patients with neuroendocrine tumours underwent surgery of the primary neoplasm; treatment with somatostatin was commenced at a later stage.

CONCLUSIONS

The authors' experience with octreotide LAR proved to be an efficacious means of controlling symptoms and stabilising disease without collateral effects. They conclude by affirming that octreotide LAR represents a valid therapeutic choice in the symptomatic treatment of neuroendocrine tumours.

[Differentiated thyroid carcinoma. Prognosis and therapy]

BACKGROUND

We have conducted retrospective analysis of 90 cases of Differentiated Thyroid Cancer (DTC) operated between 1978 and 1998. The aim of this study was to verify the most widely used prognostic factors and to try to identify differences in the development of these tumors.

METHODS

The DTCs, selected from the histopathologic reports of the Institute of Pathologic Anatomy, were divided into high, intermediate and low malignancy tumors according to the classification of Carcangiu and Rosai.

RESULTS

We found that age >45 years associated with a cancer larger than 1.5 cm and intermediate malignancy was related to the most dismal prognosis. Ten of the 90 cases had a dismal prognosis; 6/10 (60%) had disease recurrence. Four of those six patients died; one has disease recurrence 5 months after surgery, and one patient with disease recurrence after one year was lost to follow-up. The identification of metastases at the primary operation is of course an unfavourable prognostic factor. In fact, all of the six cases with metastases had disease recurrence after the treatment: three patients have died; two survive (one have a disease period of 5 months and the other a disease period of 2 years); one patient with disease recurrence one year after surgery was lost to follow-up.

CONCLUSIONS

The most significant negative factors for prognosis purposes were the higher degrees of T, the presence of metastases at diagnosis or their appearance at follow-up, age greater than 45, male sex and areas of dedifferentiation within the histological pattern. Total thyroidectomy remains the treatment of choice.

[Primary lymphoma of the gastrointestinal tract]

BACKGROUND

A retrospective analysis of 12 years' experience (1987-1999), concerning gastro-intestinal lymphomas (LNH-GI) has been performed, to offer a contribution for the identification of the diagnostic and prognostic criteria.

METHODS

During this period, 11 cases (9 male and 2 female) have been treated: 8 with gastric localization and 3 with intestinal localization, with age ranging between 12 and 78 years. Most of the analyzed cases (5 cases out of 8 with gastric localization and all the cases with intestinal localization) underwent surgical treatment without a sure understanding of the nature of lymphoma. Clinical observation showed forms in an advanced state of local development.

RESULTS

However, the low specifity of available diagnostic tools and the therapeutic delay are factors that seems do not influence the prognosis, as well as the stage of the disease determined with traditional classification methods. The aspect that seems to be crucial for the prognosis of the disease is the histotype (5 low grade cases free of desease from 36 months to 10 years, vs 4 high grade cases died between 46 days and 40 months after the surgical treatment).

CONCLUSIONS

Some interesting considerations arise from the analysis of the diagnostic procedure and from the method of treatment: the specifity and precocity of the diagnosis could be improved by a large use of endoscopic ultrasonography that allow to obtain deep biopsy; the identification of histotype before surgical treatment can address and modulate the therapeutic strategy eliminating the over treatment for L.G. forms.