Timing of breakfast does not influence therapeutic efficacy of liquid levothyroxine formulation

Oral levothyroxine (L-T4) is the mainstay of hypothyroidism treatment. Many factors may influence its absorption, including the timing of administration. Objective of the study is to demonstrate the therapeutic equivalence of administering liquid L-T4 with breakfast or 10 min before breakfast. This was a pilot study conducted with a crossover design AB/BA where A stays for L-T4 with breakfast and B for L-T4 10 min before breakfast. A post hoc analysis was conducted to compare L-T4 administered at breakfast or 10 min before breakfast with L-T4 administered 30 min before breakfast. Sixty-one hypothyroid patients were enrolled and assigned to one of the two treatment sequences. All patients were evaluated for TSH levels at the end of each period. Fifty-nine patients completed the study. The mean thyrotropin concentration was 1.52 ± 0.73 µU/ml when L-T4 was administered with breakfast and 1.46 ± 0.81 µU/ml when it was taken 10 min before breakfast, without clinically and statistically significant differences (P = 0.59), regardless of treatment sequence and period. The mean thyrotropin concentration was 1.54 ± 0.9 µU/ml when L-T4 was administered at 0-10 min intervals before breakfast and 1.25 ± 0.7 µU/ml when it was taken 30 min before breakfast (ratio = 1.23, within our definition of equivalence set at 0.8-1.25). There is therapeutic equivalence between liquid L-T4 administration at breakfast or 10 min before breakfast. We can also hypothesize that there are no clinically relevant differences between liquid L-T4 administration 30 min before breakfast or at shorter intervals.

Role of prophylactic central compartment lymph node dissection in clinically N0 differentiated thyroid cancer patients: analysis of risk factors and review of modern trends

In the last years, especially thanks to a large diffusion of ultrasound-guided FNBs, a surprising increased incidence of differentiated thyroid cancer (DTC), "small" tumors and microcarcinomas have been reported in the international series. This led endocrinologists and surgeons to search for "tailored" and "less aggressive" therapeutic protocols avoiding risky morbidity and useless "overtreatment". Considering the most recent guidelines of referral endocrine societies, we analyzed the role of routine or so-called prophylactic central compartment lymph node dissection (RCLD), also considering its benefits and risks. Literature data showed that the debate is still open and the surgeons are divided between proponents and opponents of its use. Even if lymph node metastases are commonly observed, and in up to 90% of DTC cases micrometastases are reported, the impact of lymphatic involvement on long-term survival is subject to intensive research and the best indications of lymph node dissection are still controversial. Identification of prognostic factors for central compartment metastases could assist surgeons in determining whether to perform RLCD. Considering available evidence, a general agreement to definitely reserve RCLD to "high-risk" cases was observed. More clinical researches, in order to identify risk factors of meaningful predictive power and prospective long-term randomized trials, should be useful to validate this selective approach.

Complications of Neck Dissections in Papillary Thyroid Carcinoma: A Modified Procedure to Reduce Parathyroid Morbidity

BACKGROUND/AIM

Hypoparathyroidism is the most significant morbidity after neck dissection for thyroid cancer. Addition of lateral neck dissection (ND) to central ND combined with total thyroidectomy (TT) increases the risk of postoperative hypoparathyroidism compared to TT plus central ND. The aim of this study was to verify if a modified procedure and different access to the neck for lateral ND may improve safety.

PATIENTS AND METHODS

In 62 patients with papillary thyroid cancer (PTC) undergoing TT plus central and lateral ND between 2010 and 2013, lateral ND was performed as first step approaching the neck via extrathyroideal space. Calcium in serum and parathormone (PTH) were determined preoperatively, intraoperatively and during the follow-up.

RESULTS

Twenty patients (32%) developed postoperative hypocalcemia. Calcium levels and PTH completely recovered for 58 out of 62 patients from 3 to 6 months after surgery. After a mean of 12 months' follow-up, only four patients (6.5%) had developed permanent hypoparathyroidism. The incidence of parathyroid complication after TT plus central ND and lateral ND did not differ from postoperative hypoparathyroidim after TT plus central ND.

CONCLUSION

The presented surgical procedure may provide a better outcome in terms of parathyroid morbidity.

Myoblastoma of the breast: Our experience and review of literature

INTRODUCTION

Breast myoblastoma or granular cell tumor involving the breast parenchyma has been described in detail for the first time since Abrikossoff in 1931. The location of this injury to the breast is very rare, accounting for between 5% and 15% of all cases of cancer of the granular cells. We present our experience regarding the identification of two cases because of the relative rarity of this tumor. It is often confused with breast cancer on clinical and radiological, and its diagnosis can then be difficult for physicians, radiologists and pathologists.

PRESENTATION OF CASES

We report the cases of two young women who came to our attention because of the presence of mass shoveled breast, mobile and accompanied by pain cycle independent. In both cases, mammography and ultrasound revealed the presence of heterogeneous mass and irregular, but in one of two such mass located at the Union of external quadrants of the left breast and was in contact with his serratus anterior and suspicion for malignancy. In both cases the 'histology combined with immunohistochemical study proved to be a granular cell tumor.

CONCLUSION

Although a granular cell tumor of the breast is a rare tumor breast, should be considered in the differential diagnosis of benign and malignant lesions. Surgeons and pathologists should keep in mind when considering a granular cell tumor cells with abundant granular cytoplasm containing materials to avoid misdiagnosing breast cancer, which could lead to unnecessary surgery.

Breast cancer and reconstruction: can surgical technique, reconstructive time and adjuvant treatment influence the result?

INTRODUCTION

Some techniques for the total reconstruction of the breast, regardless of the complexity, have specific complications, with varying degrees of morbidity. Therefore, we wanted to identify the most frequent complications of the main techniques used for breast reconstruction, and compare the relation to the relevant independent variables.

METHODS

Our study was conducted by examining the medical records of patients who had received complete reconstruction of the breast after a mastectomy due to breast cancer from January 2008 to December 2010, with a minimum follow-up of 3 years postoperatively. The data collected, such as the time of intervention, reconstruction techniques, operating time, and adjuvant treatment, were statistically correlated to the presence of complications.

RESULTS

Of the 40 total breast reconstructions analyzed, the technique in which they were used expanders followed by replacement with implants showed the lowest prevalence of complications (16.7%, p <0.000). Some surgical techniques have shown particular complications. The operative time for transplant transverse rectus abdominis musculocutaneous flap (363.57 ± 59.91 min) was significantly higher than that required for the techniques that use alloplastic materials (155.71 ± 38.02 min, p = 0, 01), but similar to that for the latissimus dorsi flap (309.69 ± 77.66 min). The operative time, the timing of reconstructive surgery, and type of adjuvant treatment was not correlated with the incidence of complications.

CONCLUSIONS

Each technique has its indications, contraindications and complications. The application of each technique must be tailored to the individual characteristics of each patient.

KEY WORDS

Adjuvant treatment, Reconstructive surgery, Results, Surgical procedure.

Surgical approach to mediastinal goiter: An update based on a retrospective cohort study

AIM

Surgery for mediastinal goiters (MG) is indicated for compression symptoms and risk of malignancy. Total thyroidectomy by cervicotomy is universally considered the standard surgical approach to MG. In selected cases sternotomy or a thoracotomy are used. Options of the operative technique and practical surgical problems are analysed.

METHODS

A retrospective analysis of twenty-eight-years on 1767 cases of MG in a referral centre for endocrine surgery was carried out. All patients underwent standard preoperative study and CT based surgical planning. Surgery was performed by an experienced surgical team with standard technique via cervical approach or in selected case via sternotomy or thoracotomy. Clinical records were examined.

RESULTS

Total thyroidectomy was performed in all cases. A cervical approach was used in almost 99% of patients. Significant shorter surgical time was observed for surgery via the cervical approach vs sternotomy and thoracotomy. Benign struma was observed in 1503 patients and a carcinoma in 264. We observed postoperative bleeding in 0.5% of cases, permanent monolateral recurrent laryngeal nerve palsy occurred in 1.3%, bilateral palsy in 0.6%, transient and permanent hypoparathyroidism in 14% and 4.1% respectively.

CONCLUSION

MG may be approached by a cervicotomic access only with a clear knowledge of potential risk and complications of the surgical manoeuvres. Sternotomy or of a thoracotomy are indicated only in selected cases but their inapplicability may be really dangerous in those MG not otherwise resectable. MG should be referred only to specialized centre.

Necrotizing pancreatitis: A review of the interventions

Acute pancreatitis may have a wide range of severity, from a clinically self-limiting to a quickly fatal course. Necrotizing pancreatitis (NP) is the most dreadful evolution associated to a poor prognosis: mortality is approximately 15% and up to 30-39% in case of infected necrosis, which is the major cause of death. Intervention is generally required for infected pancreatic necrosis and less commonly in patients with sterile necrosis who are symptomatic (gastric or duodenal outlet or biliary obstruction). Traditionally the most widely used approach to infected necrosis has been open surgical necrosectomy, but it is burdened by high morbidity (34-95%) and mortality (11-39%) rates. In the last two decades the treatment of NP has significantly evolved from open surgery towards minimally invasive techniques (percutaneous catheter drainage, per-oral endoscopic, laparoscopy and rigid retroperitoneal videoscopy). The objective of this review is to summarize the current state of the art of the management of NP and to clarify some aspects about its diagnosis and treatment.

Thoracic duct lesions in thyroid surgery: An update on diagnosis, treatment and prevention based on a cohort study

INTRODUCTION

Thoracic duct fistula at the cervical level is a severe but rare complication following thyroid surgery, particularly associated to lateral dissection of the neck and to mediastinal goiter.

METHODS

we retrospectively analyzed chylous fistulas observed in a cohort of 13.224 patients underwent surgery for thyroid disease since 1986 to 2014, in the Unit of Endocrine Surgery, S. Maria University Hospital, Terni, Italy.

RESULTS

We observed 20 cases of chylous fistula. Thirteen patients underwent primary surgery in our institution while the remaining 7 cases had been referred to our Department from other hospitals for an already diagnosed lymphatic leak. Surgical procedures carried out included total thyroidectomy for mediastinal goiter in 4 patients, total thyroidectomy for cancer in 2 patients, unilateral functional lymphadenectomy in 11 patients and bilateral in 3. Intraoperative repair was carried out in 4 cases. Of the remaining 16 cases, 4 of the 6 fistulas with low flow leakage healed in about 30 days of conservative treatment, 2 cases instead required surgical repair. All 10 patients with "high-flow" fistula underwent surgery. Despite surgery was performed later, postoperative course in patients with late surgical repair is similar to what observed in those patients with early surgical repair. Both groups underwent cervical drainage removal in post-operative day 4.

CONCLUSION

Healing of a cervical chylous fistula can be achieved by conservative medical therapy (nutritional and pharmacological) but in case of therapeutic failure with rapid decrease of general condition, the surgical approach is necessary. In our experience, duct ligation after unsuccessful conservative treatment, is the only resolutive treatment.

Total or near-total thyroidectomy versus subtotal thyroidectomy for multinodular non-toxic goitre in adults

BACKGROUND

Total thyroidectomy (TT) and subtotal thyroidectomy (ST) are worldwide treatment options for multinodular non-toxic goitre in adults. Near TT, defined as a postoperative thyroid remnant less than 1 mL, is supposed to be a similarly effective but safer option than TT. ST has been shown to be marginally safer than TT, but it may leave an undetected thyroid cancer in place.

OBJECTIVES

The objective was to assess the effects of total or near-total thyroidectomy compared to subtotal thyroidectomy for multinodular non-toxic goitre.

SEARCH METHODS

We searched the Cochrane Library, MEDLINE, PubMed, EMBASE, as well as the ICTRP Search Portal and ClinicalTrials.gov. The date of the last search was 18 June 2015 for all databases. No language restrictions were applied.

SELECTION CRITERIA

Two review authors independently scanned the abstract, title or both sections of every record retrieved to identify randomised controlled trials (RCTs) on thyroidectomy for multinodular non-toxic goitre for further assessment.

DATA COLLECTION AND ANALYSIS

Two review authors independently extracted data, assessed studies for risk of bias and evaluated overall study quality utilising the GRADE instrument. We calculated the odds ratio (OR) and corresponding 95% confidence interval (CI) for dichotomous outcomes. A random-effects model was used for pooling data.

MAIN RESULTS

We examined 1430 records, scrutinized 14 full-text publications and included four RCTs. Altogether 1305 participants entered the four trials, 543 participants were randomised to TT and 762 participants to ST. A total of 98% and 97% of participants finished the trials in the TT and ST groups, respectively. Two trials had a duration of follow-up between 12 and 39 months and two trials a follow-up of 5 and 10 years, respectively. Risk of bias across studies was mainly unknown for selection, performance and detection bias. Attrition bias was generally low and reporting bias high for some outcomes. In the short-term postoperative period no deaths were reported for both TT and ST groups. However, longer-term data on all-cause mortality were not reported (1284 participants; 4 trials; moderate quality evidence). Goiter recurrence was lower in the TT group compared to ST. Goiters recurred in 0.2% (1/425) of the TT group compared to 8.4% (53/632) of the ST group (OR 0.05 (95% CI 0.01 to 0.21); P < 0.0001; 1057 participants; 3 trials; moderate quality evidence). Re-intervention due to goitre recurrence was lower in the TT group compared to ST. Re-intervention was necessary in 0.5% (1/191) of TT patients compared to 0.8% (3/379)of ST patients (OR 0.66 (95% CI 0.07 to 6.38); P = 0.72; 570 participants; 1 trial; low quality evidence). The incidence of permanent recurrent laryngeal nerve palsy was lower for ST compared with TT. Permanent recurrent laryngeal nerve palsy occurred in 0.8% (6/741) of ST patients compared to 0.7% (4/543) of TT patients (OR 1.28, (95% CI 0.38 to 4.36); P = 0.69; 1275 participants; 4 trials; low quality evidence). The incidence of permanent hypoparathyroidism was lower for ST compared with TT. Permanent hypoparathyroidism occurred in 0.1% (1/741) of ST patients compared to 0.6% (3/543) of TT patients (OR 3.09 (95% CI 0.45 to 21.36); P = 0.25; 1275 participants: 4 trials; low quality evidence). The incidence of thyroid cancer was lower for ST compared with TT. Thyroid cancer occurred in 6.1% (41/669) of ST patients compared to 7.3% (34/465)of TT patients (OR 1.32 (95% CI 0.81 to 2.15); P = 0.27; 1134 participants; 3 trials; low quality evidence). No data on health-related quality of life or socioeconomic effects were reported in the included studies.

AUTHORS' CONCLUSIONS

The body of evidence on TT compared with ST is limited. Goiter recurrence is reduced following TT. The effects on other key outcomes such as re-interventions due to goitre recurrence, adverse events and thyroid cancer incidence are uncertain. New long-term RCTs with additional data such as surgeons level of experience, treatment volume of surgical centres and details on techniques used are needed.

Surgical morbidity of cervical lymphadenectomy for thyroid cancer: A retrospective cohort study over 25 years

INTRODUCTION

Prognosis of thyroid cancer is strictly related to loco-regional metastases. Cervical lymphadenectomy has a specific oncologic role but may lead to significant increase of morbidity. Aim of the study is the analysis of surgical morbidity in cervical lymphadenectomy for thyroid cancer.

METHODS

We retrospectively analyzed 1.765 thyroid cancers operated over a period of 25 years at S. Maria University Hospital, Terni, University of Perugia, Italy. Type of lymphadenectomy, histology and complications were analysed.

RESULTS

A prevalence of differentiated and medullary cancers was observed (respectively 88% and 7.2%). Central lymphadenectomy was carried out in 425 patients, lateral modified and radical lymphadenectomy respectively in 651 and 17 cases. Following central neck dissection we observed: bilateral and unilateral temporary recurrent nerves palsy respectively of 0.7% and 3.5%, unilateral permanent palsy in 1.6% of cases, temporary and permanent hypoparathyroidism respectively in 17.6% and 4.4%. After lateral neck dissection we observed: intra and post-operative haemorrhage respectively in 2% and 0.29%, respiratory distress in 0.29%, lesions of facial nerve in 0.44%, of vagus in 0.14%, of phrenic nerve in 0.14%, of hypoglossal nerve in 0.29%, of the accessory nerve, transient in 1.34% and permanent in 0.29%, permanent lesion of cervical plexus in 0.29%, salivary fistula in 0.14% and chylous fistula in 1.04% of patients. Student's t test was used to compare groups when appliable.

CONCLUSION

Central and lateral cervical lymph node dissection are associated to severe morbidity. Correct indication, surgical expertise, high volume of patients and early multidisciplinary management of complications is the key of an acceptable balance between oncologic benefits and surgical morbidity.

A Gelatin-Thrombin Matrix Topical Hemostatic Agent (Floseal) in Combination With Harmonic Scalpel Is Effective in Patients Undergoing Total Thyroidectomy: A Prospective, Multicenter, Single-Blind, Randomized Controlled Trial

BACKGROUND

Hemostasis during thyroidectomy is essential; however, the safest, most efficient, and most cost-effective way to achieve this is unclear. This randomized, multicenter, single-blind, prospective study evaluated the efficacy and safety of using different hemostatic approaches in patients undergoing total thyroidectomy.

METHODS

Patients aged ≥18 to 70 years were randomized to Floseal + a harmonic scalpel (HS), Floseal alone, HS alone, or standard total thyroidectomy. Primary endpoint was 24-hour drain output. Secondary endpoints included surgery duration and complications.

RESULTS

Two hundred and six patients were randomized to Floseal + HS (n = 52), Floseal alone (n = 54), HS alone (n = 50), and standard total thyroidectomy (n = 50). The 24-hour drain output was lower in the Floseal + HS group compared with standard thyroidectomy. Floseal + HS also had a shorter surgery time (P < .0001) versus the other 3 treatments.

CONCLUSION

Floseal + HS can be effective at reducing postsurgical drain output and provides a complementary hemostatic approach in patients undergoing total thyroidectomy.

Can the measurement of amylase in drain after distal pancreatectomy predict post-operative pancreatic fistula?

INTRODUCTION

The most frequent reason for performing a distal pancreatectomy is the presence of cystic or neuroendocrine tumors, in which the distal pancreatic stump is often soft and non fibrotic. This parenchymal consistence represents the main risk factor for post-operative pancreatic fistula. In order to identify the fistula and assessing its severity postoperative monitoring of amylase from intraperitoneal drains is important.

METHODS

From a retrospective multicentric database analysis were included 33 patients who underwent distal pancreatectomy for pancreatic neoplastic disease.

RESULTS

Postoperative pancreatic fistula occurred in four cases. One patient had a ductal adenocarcinoma, two presented with pancreatic endocrine neoplasms and the last one had an intraductal papillary mucinous neoplasia. Two patients underwent open, the other two laparoscopic distal pancreatectomy.

DISCUSSION

Postoperative pancreatic fistulas after distal pancreatectomy worsen the quality of life, prolong the post-operative stay and delay further adjuvant therapy. In patients who underwent distal pancreatectomy literature exposed some advantages deriving from the placement of abdominal drainages only in selected cases and from their early removal. Patients presenting a high risk of pancreatic fistula had higher amylase levels of drainage fluid in the first postoperative day.

CONCLUSION

POPF is the most frequently complication after pancreatectomy. In our analysis DFA1>5000 can be considered as a predictive factor for pancreatic fistula. For this reason, the systematic measurement of amylase in drain fluid in first-postoperative day can be considered a good clinical practice.

A rare case of Amyand's hernia in a 67-year-old male. A case report and review of the literature

AIM

The aim of the study is to indicate the Amyand's hernia as a possible complication during surgery for hernia repair performed in emergency

CASE REPORT

A case Amyand's hernia complicated by the presence of acute gangrenous appendicitis perforated at the base is reported.

DISCUSSION

Amyand's hernia is an hernia which is the vermiform appendix inside. This condition may remain asymptomatic and behave like a normal inguinal hernia or can simulate strangulated hernia when the hernia contains inflamed appendix.

CONCLUSION

Acute appendicitis in an incarcerated inguinal hernia is a rare event. The preoperative diagnosis is very difficult because it simulates the behavior of a strangulated inguinal hernia. The treatment depends on the severity of appendicitis. The appendicitis status influences the type of surgery and the type of access.

Is robot-assisted laparoscopic right colectomy more effective than the conventional laparoscopic procedure? A meta-analysis of short-term outcomes

AIM

The use of robotic technology procedures has proved to be safe and effective, arising as a helpful alternative to standard laparoscopic surgery in a variety of colorectal procedures. However, the role of robotic assistance in laparoscopic right colectomy is still not demonstrated.

METHODS

A systematic review of the literature was carried out performing an unrestricted search in MEDLINE, EMBASE, the Cochrane Library and Google Scholar up to 30th August 2014. Reference lists of retrieved articles and review articles were manually searched for other relevant studies. We meta-analyzed the currently available data regarding the incidence of anastomotic leakage, operative time, intra-operative blood loss, conversion rate, retrieved lymphnodes, post-operative hemorrhage, intra-abdominal abscess, time to 1st flatus, post-operative ileus, wound infection, incisional hernia, not-surgical complications, total complications, hospital stay, post-operative mortality, surgery-related costs and total costs, in conventional laparoscopic right colectomy (LRC) compared to robot-assisted laparoscopic right colectomy (RRC).

RESULTS

Overall 8 studies were included, thus resulting in 616 patients. The meta-analysis showed that the RRC decreases the intra-operative blood loss and the time to the 1st flatus, if compared to the LRC. On the other hand, the robotic assistance increases the operative time and the surgery-related costs. No statistically significant differences were found about the other post-operative outcomes.

CONCLUSION

RRC may ensure limited improvements in post-operative outcome, thus increasing procedural costs and without a proved enhanced oncological accuracy to date, if compared to the LRC.

Interleukin-6 and pro inflammatory status in the breast tumor microenvironment

BACKGROUND

Greater than 50,000 new cases of breast cancer cases were diagnosed in Italy during 2013, with nearly 15,000 women succumbing to the disease. These epidemiological statistics highlight the overwhelming clinical dilemma of breast cancer and emphasize the need for novel therapeutic targets and prevention strategies. Countless studies in the fields of mammary gland development and breast cancer have led to an appreciation of a breast tumor microenvironment that actively contributes to the heterogeneous nature of breast cancer.

METHODS

The current review will focus on the impact of IL-6 and in the breast tumor microenvironment. Excessive IL-6 has been demonstrated in primary breast tumors and breast cancer patient sera and is associated with poor clinical outcomes in breast cancer. These clinical associations are corroborated by emerging preclinical data revealing that IL-6 is a potent growth factor and promotes an epithelial-mesenchyme (EMT) phenotype in breast cancer cells to indicate that IL-6 in the breast tumor microenvironment is clinically relevant.

RESULTS

High serum levels of interleukin-6 correlate with poor outcome in breast cancer patients. However, few data are yet available on the relationship between IL-6 and stem/progenitor cells, which may fuel the genesis of breast cancer in vivo. Mammospheres (MS) from node invasive breast carcinoma tissues express IL-6 mRNA at higher levels than MS from matched non-neoplastic mammary glands. IL-6 mRNA is detectable only in basal-like breast carcinoma tissues; our results reveal that IL-6 triggers a Notch-3-dependent upregulation of the Notch ligand Jagged-1, whose interaction with Notch-3 promotes the growth of MS and Michigan Cancer Foundation-7 (MCF-7)-derived spheroids. IL-6 induces a Notch-3-dependent upregulation of the carbonic anhydrase IX gene and promotes a hypoxia-resistant/invasive phenotype in MCF-7 cells and MS.

CONCLUSIONS

In conclusion, our data support the hypothesis that IL-6 induces malignant features in Notch-3-expressing, stem/progenitor cells from human ductal breast carcinoma and normal mammary gland.

The measurement of amylase in drain fluid for the detection of pancreatic fistula after gastric cancer surgery: an interim analysis

Background

Pancreatic fistula is still one of the most serious and potential complications after D2-D3 distal and total gastrectomy (4% to 6%). Despite their importance, pancreatic fistulas still have not been uniformly defined. Amylase concentration of the drainage fluid after surgery for gastric cancer can be considered as a predictive factor of the presence of pancreatic fistula.

Methods

From January 2009 to April 2013, 53 patients underwent surgery for gastric cancer. Amylase concentration in the drainage fluid was measured on the first postoperative day and if it was ≥1,000 UI, it was measured again on the third postoperative day. Pancreatic fistula occurred in four cases (7.5%). Pancreatic fistulas were classified using the International Study Group on Pancreatic Fistula (ISGPF) criteria into different grades of severity. Two fistulas were Grade A, one was Grade B, and one was Grade C.

Results

Management of drainage tubes is still crucial after gastrectomy, not only for the likelihood of anastomotic leaks but also the eventual diagnosis and management of pancreatic fistula. High amylase drainage content and then the presence of the pancreatic fistula may be due to several causes: the operation itself when it includes splenectomy or pancreatic tail-splenectomy, the extended lymphadenectomy but even the ‘gently and softly’ pancreatic manipulation, according literature, may be a risk factor.

Conclusions

The authors assessed amylase concentration in the drainage fluid collected from the left subphrenic cavity on POD1 and POD3 in 53 patients who had undergone curative gastrectomy for cancer and concluded that amylase drainage content >3 times the serum amylase was a useful predictive risk factor for pancreatic fistula. Our work is an interim analysis and the aim of this study is to increase the accrual of the number of patients to have a significant number. For this reason, a protocol for a multicenter trial will be designed to verify whether the systematic measurement of amylase in drain fluid is better than abdominal ultrasound for the detection of pancreatic fistula after gastric cancer surgery.

Approach to lymph node metastases in sporadic medullary thyroid carcinoma An istitutional experience

AIM

Analyse the impact of aggressive surgical treatment with accurate lymphadenectomy in medullary thyroid carcinoma.

MATERIALS AND METHODS

We retrospectively analysed 152 patients affected by medullary thyroid carcinoma, divided in two groups, considering outcome and surgical complications.

RESULTS

Primary surgical treatment with thyroidectomy plus central and lateral neck dissection, offers significant reduction in post-operative calcitonin levels, reduced recurrences and limited complications.

DISCUSSION

Accurate lymphadenectomy, according to the international guidelines and the main results of clinical studies, is the only treatment combined to total thyroidectomy which offers improved outcome in medullary thyroid carcinoma since inefficacy of chemotherapy and radiotherapy.

CONCLUSIONS

Surgery is the unique and fundamental therapy for patients affected by medullary thyroid carcinoma. Extended neck dissection combined to precocious diagnosis and strict follow-up might be considered the standard of treatment of medullary thyroid carcinoma.

KEY WORDS

Complications, Lymphadenectomy, Medullary carcinoma, Prognosis.

Left colon acute diverticulitis: an update on diagnosis, treatment and prevention

Diverticulosis of the colon is a common disease with an increasing incidence in Western Countries. It represents a significant burden for National Health Systems in terms of costs. Most people with diverticulosis remain asymptomatic, about one quarter of them will develop an episode of symptomatic diverticular disease and up to 5% an episode of acute diverticulitis (AD). AD shows an increasing prevalence. Recently, progresses have been reached about the etiology, pathogenesis, natural course of diverticular disease and its complications; improvements about the diagnosis and treatment of AD have been achieved. However, the treatment options are not well defined because of a lack of solid evidence: there are few systematic reviews and well conducted trials to guide decision-making in the treatment of AD and in the prevention of its recurrences. This review describes the recent evidence about diagnosis, treatment and prevention of AD.

The role of surgery in the current management of differentiated thyroid cancer

In the last decades, a surprising increased incidence of differentiated thyroid cancer (DTC), along with a precocious diagnosis of "small" tumors and microcarcinomas have been observed. In these cases, better oncological outcomes are expected, and a "tailored" and "less aggressive" multimodal therapeutic protocol should be considered, avoiding an unfavorable even if minimal morbidity following an "overtreatment." In order to better define the most suitable surgical approach, its benefits and risks, we discuss the role of surgery in the current management of DTCs in the light of data appeared in the literature. Even if lymph node metastases are commonly observed, and in up to 90 % of DTC cases micrometastases are reported, the impact of lymphatic involvement on long-term survival is still argument of intensive research, and indications and extension of lymph node dissection (LD) are still under debate. In particular, endocrine and neck surgeons are still divided between proponents and opponents of routine central LD (RCLD). Considering the available evidence, there is agreement about total thyroidectomy, therapeutic LD in clinically node-positive DTC patients, and RCLD in "high risk" cases. Nevertheless, indications to the best surgical treatment of clinically node-negative "low risk" patients are still subject of research. Considering on the one hand, the recent trend toward routine central lymphadenectomy, avoiding radioactive treatment, and on the other hand, the satisfactory results obtained reserving prophylactic LD to "high risk" patients, we think that further prospective randomized trials are needed to evaluate the best choice between the different surgical approaches.

Hypocalcemia following thyroid surgery: incidence and risk factors. A longitudinal multicenter study comprising 2,631 patients

Postoperative hypocalcemia is the most frequent complication of total thyroidectomy. It may have a delayed onset, and therefore delays the discharge from the hospital, requiring calcium replacement therapy to alleviate clinical symptoms. During a 7-month period, 2,631 consecutive patients undergoing primary or completion thyroidectomy were prospectively followed up and underwent analysis regarding postoperative hypoparathyroidism. Data were prospectively collected by questionnaires from 39 Italian endocrine surgery units affiliated to the Italian Endocrine Surgery Units Association (Club delle Unità di EndocrinoChirurgia-UEC), where thyroid surgery is routinely performed. The incidence of hypoparathyroidism was 28.8 % (757 patients), including transient hypocalcemia (27.9 %-734 patients) and permanent hypocalcemia (0.9 %-23 patients). The rate of asymptomatic hypocalcemia was 70.80 %. The incidence of permanent hypocalcemia was higher in the symptomatic hypocalcemia group (7.5 %) than in asymptomatic one (1.5 %). Female patients experienced a transient postoperative hypocalcemia more frequently than male patients (29.7 and 21.2 %, respectively; p < 0.0001). The percentage developing hypocalcemia in patients in which parathyroid glands were intraoperatively identified and preserved was higher than in the patients in which the identification of parathyroid glands was not achieved (29.2 vs. 18.7 %, p < 0.01). This prospective study confirmed the main risk factors for postoperative hypocalcemia: thyroid cancer, nodal dissection, and female gender. It farther showed that identifying parathyroids has an important role to prevent permanent hypocalcemia though with a higher risk of transient hypocalcemia. A suitable informed consent should especially emphasize the importance of some primary factors in increasing the risk of hypocalcemia after thyroid surgery.

Thyroid anaplastic carcinoma: the impact of multimodality treatment on survival. The experience of a referral center for endocrine surgery

AIM

Anaplastic thyroid carcinoma (ATC) is characterized by local invasiveness, risk of recurrence and very poor prognosis.

METHODS

We retrospectively reviewed 79 consecutive patients treated between 1996 and 2012. We analysed the multimodality treatment of ATC considering the impact of surgery and radiotherapy on survival.

RESULTS

Patients were divided in groups A and B (tumor less and larger than 5 cm). Surgery was carried out in 44 patients, radiotherapy in 48 patients. Tracheostomy and endoprosthesis were used respectively in 48.1% and in 25.3% of patients. The mean survival was 5.35 (± 3.2) months with no significant difference in group A vs. group B. Considering patients undergone surgery, significant impact on survival was observed comparing A vs. B (P=0.013). Combination of surgery and radiotherapy significantly improves outcome comparing A vs. B (P=0.017). Improvement in survival compared to no treatment at all was observed in both groups respectively for surgery (P=0.001 and P=0.0001) and radiotherapy (P=0.047 and P=0.0001).

CONCLUSION

Although the severity of prognosis of ATC, multimodality treatment still significantly improves local control of the disease achieving acceptable survival in selected patients and adequate palliation of symptoms for the others. Surgery is still a fundamental treatment.

Intraoperative recurrent laryngeal nerve monitoring in thyroid surgery Evaluation of its use in terms of "spending review"

BACKGROUND

Intra Operative Nerve Monitoring (IONM) has been used in head and neck surgery since the 1970s. Its utilization for monitoring and protecting the recurrent laryngeal nerve, however, is a controversial subject. This paper details the use, value, and cost of this technology within a single institution.

METHODS

We conducted a retrospective chart review, analysis of surgery time with and without IONM, analysis of postoperative vocal cord function, and review of the literature

RESULTS

IONM did not reduce the operative time during total thyroidectomies in our experience. Use of IONM increased the cost of each surgery by € 450. IONM did not decrease the number of injured nerves (postoperative paresis).

CONCLUSIONS

IONM has proven to be highly useful in certain circumstances but has not been definitively proven to protect the nerve any more effectively than the gold standard of nerve visualization. In our study, the use of IONM did not reduce the time of thyroid surgery and did increase the cost. While IONM may, in special clinical circumstances such as revision and malignant thyroid surgery, increase the value of the operation, its use for every thyroid surgery does not appear to be cost effective or valuable to the patient.

Robot-assisted or conventional laparoscoic rectopexy for rectal prolapse? Systematic review and meta-analysis

AIM

The use of robotic technology has proved to be safe and effective, arising as a helpful alternative to standard laparoscopy in a variety of surgical procedures. However the role of robotic assistance in laparoscopic rectopexy is still not demonstrated.

METHODS

A systematic review of the literature was carried out performing an unrestricted search in MEDLINE, EMBASE, the Cochrane Library, and Google Scholar up to 30th June 2014. Reference lists of retrieved articles and review articles were manually searched for other relevant studies. We meta-analyzed the data currently available regarding the incidence of recurrence rate of rectal prolapse, conversion rate, operative time, intra-operative blood loss, post-operative complications, re-operation rate and hospital stay in robot-assisted rectopexy (RC) compared to conventional laparoscopic rectopexy (LR).

RESULTS

Six studies were included resulting in 340 patients. The meta-analysis showed that the RR does not influence the recurrence rate of rectal prolapse, the conversion rate and the re-operation rate, whereas it decreases the intra-operative blood loss, the post-operative complications and the hospital stay. Yet, the RR resulted to be longer than the LR. Post-operative ano-rectal and the sexual functionality and procedural costs could not meta-analyzed because the data from included studies about these issues were heterogeneous and incomplete.

CONCLUSION

The meta-analysis showed that the RR may ensure limited improvements in post-operative outcomes if compared to the LR. However, RCTs are needed to compare RR to LR in terms of short-term and long-term outcomes, specially investigating the functional outcomes that may confirm the cost-effectiveness of the robotic assisted rectopexy.

Temporary percutaneous ileostomy for faecal diversion after intestinal resection for acute abdomen in elderly: how to avoid the conventional loop ileostomy

Conventional loop ileostomy (CLI) is a suitable procedure for transitory faecal diversion after colocolic or colorectal anastomosis, but it causes relevant morbidities (dehydration, discomfort, peristomal infections) and requires a second operation to be closed. We already described an alternative technique of temporary percutaneous ileostomy (TPI), which can be removed without surgery, as faecal diversion in low colorectal anastomosis. Now we report our experience with the TPI in protecting colocolic and colorectal anastomosis in urgency in elderly. From January 2012 to June 2014, 45 patients underwent urgent surgical procedures for acute abdomen with colonic and/or rectal resections and colocolic or colorectal anastomosis with faecal diversion by TPI. Nineteen out of 45 patients were older than 70. Four low colorectal anastomoses, 10 intra-peritoneal colorectal anastomosis and 4 colocolic anastomosis were performed. Neither intra-operative complications nor post-operative deaths were observed. None of the 19 patients treated had evidence of clinical or radiological leakage of the anastomosis. Post-operative complications occurred in 7 patients and nobody required re-intervention. No intestinal obstruction was reported in the early (30 days) post-operative period. The TPI seems to be a valid alternative to standard ileostomy, ensuring an optimal faecal diversion both in elective surgery and in urgency. The TPI also ensures less patient discomfort and it can be easily removed without surgery, unlike the CLI. The limited duration of the faecal diversion and the uselessness of a second surgical procedure to remove the TPI are the most important advantages of this new technique, especially in elderly.

To drain or not to drain elective uncomplicated laparoscopic cholecystectomy? A systematic review and meta-analysis

Laparoscopic cholecystectomy (LC) has largely replaced conventional cholecystectomy in the past decade. However, there are still limited data about the value of prophylactic sub-hepatic drainage for elective uncomplicated LC. We carried out a systematic review of the literature in order to perform a meta-analysis about this issue. An unrestricted search in MEDLINE, EMBASE and Cochrane Library up to 31 December 2013 was performed. Overall, seven high-methodological quality randomized controlled trials (RCTs) were included in the meta-analysis, resulting in 1310 patients totally. The incidence of abdominal collections, wound infection and overall mortality according to the presence or absence of the sub-hepatic drainage were meta-analyzed. Sub-hepatic drainage showed an increase in the abdominal collection rate in patients who underwent elective uncomplicated LC (OR 1.56, 95% CI 1.00-2.43) if compared to patients without drainage. A non-significant correlation was found in overall mortality and infection rates. The meta-analysis shows that the presence of the sub-hepatic drainage does not reduce the incidence of abdominal collection after uncomplicated LC, whereas it does not influence wound infection and mortality rates, postoperative pain and hospital stay.

Pancreatico-jejunal anastomosis with invaginating jenunal "J"-loop. Preliminary report of a new technique

INTRODUCTION

The pancreatic anastomosis is the most demanding step after pancreaticoduodenectomy (PD) and the pancreatic fistula (PF) is the most dreaded complication. Many techniques have been investigated to assess the best way to deal with the pancreatic stump after PD and none of these has shown to be superior in terms of statistically significant reduction of PF rate. We report the preliminary experience of a new technique of pancreaticojejunostomy (PJ).

METHODS

Fifteen patients underwent PD for neoplasms with end-to-side PJ with dunking jejunal "J"-loop, between July 2011 and March 2014. The data about their post-operative outcomes were analyzed.

RESULTS

There were no intra-operative neither post-operative deaths. One patient had a grade A PF (6.7%). Total post-operative complications occurred in 6 patients (40%), major post-operative complications occurred in 3 patients (20%).

CONCLUSION

The new "sandwich" technique for dunking PJ after PD that we describe proved to be easy to perform and sure. It appears to be suitable for a dunking PJ when the diameter of the jejunum is too small than this of the pancreatic stump.

Intra-abdominal drainage after pancreatic resection: is it really necessary? A meta-analysis of short-term outcomes

INTRODUCTION

Pancreatic fistula (PF) is the most dreadful complication of patients after pancreatic resection. The use of operative site drains is considered routine all along in pancreatic surgery in order to remove any collections and to act as a warning of hemorrhage or anastomotic leakage. To date few studies investigated the potential benefit and safety of routine drainage compared with no drainage after pancreatic resection and the evidence by literature is not clear.

METHODS

A systematic review of the literature was carried out performing an unrestricted search in MEDLINE, EMBASE and Cochrane Library up to 28th February 2014. Reference lists of retrieved articles and review articles were manually searched for other relevant studies. The currently available data regarding the incidence of post-operative short-term outcomes after pancreatic resection were meta-analyzed according to the presence or absence of the intra-abdominal drainage.

RESULTS

Overall 7 studies were included in the meta-analysis, that is 2 randomized controlled trials (RCTs) and 5 non-RCTs resulting in 2704 patients totally. Intra-abdominal drainage showed to increase the PF (OR 2.31, 95% CI 1.52-3.51), the total post-operative complications (OR 1.52, 95% CI 1.30-1.78) and the re-admission (OR 1.30, 95% CI 1.06-1.61) rates. A non-significant correlation was found with the presence/absence of the drainage about biliary and enteric fistula, post-operative hemorrhage, intra-abdominal infected collection, wound infection and overall mortality rates.

CONCLUSION

The meta-analysis shows that the presence of an intra-abdominal drainage does not improve the post-operative outcome after pancreatic resection.

Indoleamine 2,3-dioxygenase 1 (IDO1) is up-regulated in thyroid carcinoma and drives the development of an immunosuppressant tumor microenvironment

CONTEXT

Indoleamine 2,3-dioxygenase 1 (IDO1) is a single chain oxidoreductase that catalyzes tryptophan degradation to kynurenine. In cancer, it appears to exert an immunosuppressive function as part of an acquired mechanism of immune escape mediated by the inhibition of lymphocyte proliferation and survival and by the induction of FoxP3+ T regulatory cells.

OBJECTIVE

The objective of the study was to evaluate IDO1 expression in thyroid carcinoma and demonstrate its immunosuppressive function in the context of thyroid tumors.

SETTING

IDO1 expression was evaluated by quantitative PCR in 105 papillary thyroid carcinomas (PTCs), 11 medullary thyroid carcinomas, six anaplastic thyroid carcinomas, and five thyroid carcinoma cell lines (TCCLs), by immunohistochemistry in 55 PTCs and by Western blotting in five TCCLs. FoxP3+ Treg lymphocyte density was evaluated by immunohistochemistry in 29 PTCs. IDO1 inhibitory effect on lymphocyte proliferation was tested in coculture experiments of TCCLs and activated lymphocytes.

RESULTS

IDO1 mRNA expression resulted significantly higher in all the analyzed thyroid carcinoma histotypes compared with normal thyroid. Interestingly, an increase of IDO1 mRNA expression magnitude could be observed with gain of aggressiveness (PTCs and medullary thyroid carcinomas ≪ anaplastic thyroid carcinomas). In PTCs, IDO1 mRNA expression magnitude correlated with IDO1 immunostaining intensity in cancer cells and with FoxP3+ Treg lymphocyte density in the tumor microenvironment. IDO1 was expressed in human thyroid cancer cell lines in vitro, and FTC-133 cells showed high kynurenine concentration in the conditioned medium and a strong suppressive action on the proliferation of activated lymphocytes in coculture experiments.

CONCLUSIONS

For the first time, this study demonstrates a pivotal role of IDO1 in the suppression of lymphocyte function in thyroid carcinoma microenvironment.

Fournier's gangrene: early diagnosis. How to diagnose, how to manage it

Fournier's gangrene (FG) is a rare surgical emergency and a life-threatening condition with a rapidly progressive gangrene defined as a necrotizing fasciitis of the perineal or genital areas leading to septic shock and death if untreated. Risk factors are diabetes, immune compromise, obesity, drug use, or genital trauma. Patients are treated by incision and drainage. Aim of the study is to analyze cases of early manifestations of FG and consider aspect of diagnosis based on clinical presentation and the importance of precocious surgical treatment. We had experience of early lesions of FG in 22 cases. We report three cases in which the initial clinical presentation was typical of precocious signs referable to FG. Foley catheter was used in all cases, no diverting colostomy was performed. The patients were treated by artificial i.v. feeding. No extensive demolition of perineal tissues were operated, neither plastic surgery was required. Antibiotic therapy combined to surgical treatment with incision and drainage were performed in all cases. Admission in the intensive care unit was effective when indicated. No mortality was registered in all 22 cases of the series. FG is rare, severe condition requiring a multidisciplinary approach. An early diagnosis and an aggressive surgical treatment, improved by antibiotic therapy, hyperbaric oxygen therapy and proper wound care are the key points of FG management. In selected patients, colostomy or cystostomy must be considered when simple catheterization is not sufficient. Severe cases must be therefore referred to high-volume and specialized centres with specialist professional and intensive care facilities.

Metaplastic carcinoma of the breast: Treatment, results and prognostic factors based on international literature

Metaplastic carcinoma of the breast (MCB) is a rare form of cancer containing mixture of epithelial and mesenchymal elements in variable combinations. Few and conflicting clinical data are available in the literature addressing optimal treatment modalities, prognosis and outcome. A retrospective study was conducted to review all patients with MCB diagnosed and treated at Breast Unit of Azienda Ospedaliera "Santa Maria" Terni - Italy between 2001/2010. The aim is to describe patient's clinic pathologic features and to analyze treatment results. Six female patients were studied. The median age was 48 years (range 14/58). The median tumor size was 9 cm. (range 3/18 cm.). Two cases (33%) were identified as purely epithelial and 4 (67%) as mixed epithelial and mesenchymal metaplasia. Hormone receptors were positive in only 2 patients. Modified radical mastectomy performed in 3 patients and 5 underwent axillary node dissection. Adjuvant chemotherapy was given to all patients and postoperative radiotherapy to 4. Four patients relapsed with median time of relapse of 12 months. MCB is an aggressive form of breast cancer associated with poor outcome, high incidence of local recurrence and pulmonary metastases. The disease tends to be estrogen/progesterone receptor negative. Tumor size has an important impact on outcome. The best treatment approach is yet to be defined.

Axillary metastases from occult breast cancer. Our experience

We report the case of a 63-year-old woman with occult breast cancer who presented with a hard metastatic nodule in the left axilla. Although histology identified a metastatic carcinoma in the lymph nodes, numerous tests failed to detect the primary tumor. Resected lymph node was positive for both estrogen and progesterone receptors, suggesting the breast as the site of the primary tumor. Left modified radical mastectomy was performed. Pathology revealed an invasive lobular carcinoma (2.5 x 2 mm in size) with extensive lymphatic involvement, which strongly expressed both vascular endothelial growth factor-C (VEGF-C) and VEGF-D.

Male breast cancer in the twenty-first century: What's new?

Male breast cancer is an uncommon disease although the incidence has increased over the past 25 years. As with many other rare "orphan" diseases, male breast cancer is understudied. The rarity of the disease precludes prospective randomized clinical trials. In addition, few researchers and minimal funding have focused on breast cancer in men, but further work is clearly needed to better understand this disease. It shares many similarities with breast cancer in women; yet some clear differences have emerged. In this article, the latest information on the epidemiology, biology, and treatment of male breast cancer is reviewed.

KEY WORDS

Epidemiology, Male breast cancer, Prognosis, Treatment.

Diagnostic, therapeutic and healthcare management protocols in parathyroid surgery: II Consensus Conference of the Italian Association of Endocrine Surgery Units (U.E.C. CLUB)

AIM

To update the Diagnostic-Therapeutic-Healthcare Protocol (Protocollo Diagnostico-Terapeutico-Assistenziale, PDTA) created by the U.E.C. CLUB (Association of the Italian Endocrine Surgery Units) during the I Consensus Conference in 2008.

METHODS

In the preliminary phase, the II Consensus involved a selected group of experts; the elaboration phase was conducted via e-mail among all members; the conclusion phase took place during the X National Congress of the U.E.C. CLUB. The following were examined: diagnostic pathway and clinical evaluation; mode of admission and waiting time; therapeutic pathway (patient preparation for surgery, surgical treatment, postoperative management, management of major complications); hospital discharge and patient information; outpatient care and follow-up.

CONCLUSIONS

The PDTA for parathyroid surgery approved by the II Consensus Conference (June 2013) is the official PDTA of the U.E.C. CLUB.

To drain or not to drain extraperitoneal colorectal anastomosis? A systematic review and meta-analysis

AIM

Anastomotic leakage is the one of the most serious complications in rectal cancer surgery and is associated with high mortality, morbidity and an increased incidence of local recurrence. Although many studies have compared drained and undrained colorectal anastomoses, to date the role of pelvic drainage in extraperitoneal colorectal anastomosis remains undefined.

METHOD

We carried out a systematic review of the literature, performing an unrestricted search in MEDLINE and Embase up to 30 October 2012. Reference lists of retrieved articles and review articles were manually searched for other relevant studies. We performed a meta-analysis of the data currently available on the incidence of extraperitoneal anastomotic leakage, according to the presence or absence of pelvic drainage.

RESULTS

Overall, eight studies - three randomized clinical trials (RCTs) and five non-RCTs, comprising a total of 2277 patients - were included in the meta-analysis. Pelvic drainage was demonstrated to reduce both the leak rate and the rate of reintervention in patients who underwent anterior rectal resection with extraperitoneal colorectal anastomosis (OR = 0.51, 95% CI: 0.36-0.73; and OR = 0.29, 95% CI: 0.18-0.46, respectively) compared with patients without drainage. Overall mortality and infection rates were also evaluated, but a nonsignificant correlation was found with the presence of drainage.

CONCLUSION

The meta-analysis shows that the presence of a pelvic drain reduces the incidence of extraperitoneal colorectal anastomotic leakage and the rate of reintervention after anterior rectal resection.

Papillary thyroid microcarcinoma: proposal of treatment based on histological prognostic factors evaluation

BACKGROUND

Papillary thyroid cancer accounts for approximately 80% of thyroid tumors and its incidence has increased over the past decades. Papillary thyroid microcarcinomas (PMCs), defined by the World Health Organization as less than 1.0 cm in size, are identified with greater frequency. The majority of patients with PMCs follows a benign clinical course, however a subgroup of these carcinomas is as aggressive as bigger tumors. Risk factors related with poor outcome have not been defined and the optimal treatment has not been proved. The authors investigated histologic prognostic factors predicting high risk patients considered for more aggressive treatment and propose reviewed therapeutic guidelines based on analysis of histopathologic features which determined the recurrence rate.

STUDY DESIGN

One hundred forty nine patients with PMC who underwent surgery were retrospectively analyzed. Clinical and histopathologic parameters potentially predicting patient outcome and recurrent disease were statistically investigated, after a minimum follow-up of 5 years.

RESULTS

After a median follow-up of 5.4 years 28 of 149 patients experienced recurrent disease. All of them were reoperated on and newly treated with radioiodine administration. The multivariate statistical analysis identified extrathyroidal invasion (Odds Ratio, OR, 58.54; P=0.013), the solid pattern (OR,25.77; P>0.001), the tumor multifocality (OR, 15.80; P= 0.005), and the absence of tumor capsule (OR, 9.74; P=0.015) as significant and indipendent risk factors for the appearance of PMCs recurrences. Of note, none of the PMC "incidentally" discovered at histopathological examination alone experienced recurrent disease during follow-up.

CONCLUSIONS

Although most PMC have favourable long-term prognosis, some patients (19% in our series) presented aggressive clinical course strongly correlated with some histopathologic features (extrathyroidal invasion, tumor multifocality, solid pattern and absence of capsule) who need to be investigated and for whom a radical therapeutic approach is recommended based on total thyroidectomy and regional lymphadenectomy followed by radioiodine administration.

Do Italian surgeons use antibiotic prophylaxis in thyroid surgery? Results from a national study (UEC--Italian Endocrine Surgery Units Association)

Thyroid surgery is a clean procedure and therefore antibiotic prophylaxis is not routinely recommended by most international guidelines. However, antibiotics are often used in clinical practice. We enrolled 2926 patients who performed a thyroid surgical operation between the years 2009 and 2011 in the 38 centers of endocrine surgery that joined the UEC--Italian Endocrine Surgery Units Association. Antibiotic prophylaxis was used in 1132 interventions (38.7%). In case of antibiotic prophylaxis, cephalosporins or aminopenicillins ± beta lactamase inhibitors were employed. At logistic regression analysis the use of drainage or device and the presence of malignancy were independent predictors of antibiotic prophylaxis employment. In conclusion our study shows that antibiotic prophylaxis was not rarely used in clinical practice in the setting of thyroid surgery. Drainage apposition, use of device, and malignant disease were independent predictors for antibiotic prophylaxis employment. More data on everyday practice and infection rate in well-designed studies are warranted to provide definitive recommendations on the utility of antibiotic prophylaxis in this setting. According to our experience, we don't consider to be strictly necessary the antibiotic prophylaxis employment in order to reduce infection rate in thyroid surgery.

Differentiated thyroid tumors: surgical indications

Thyroid gland tumors represent 1% of malignant tumors. In Italy their incidence is in constant growth. The aggressiveness depends on the histological type. The relative non-aggressive grade of different forms of tumors is the basis for discussing the treatment of choice: total thyroidectomy vs lobectomy with or without lymphadenectomy of the sixth level in the absence of metastasis. Authors report about their experience, and they advocate, given the high percentage of multicentric forms, total thyroidectomy as treatment of choice.

Randomized study comparing use of THUNDERBEAT technology vs standard electrosurgery during laparoscopic radical hysterectomy and pelvic lymphadenectomy for gynecologic cancer

STUDY OBJECTIVE

To compare operative time with use of THUNDERBEAT (TB) vs standard electrosurgery (SES) during laparoscopic radical hysterectomy and pelvic lymphadenectomy to treat gynecologic tumors.

DESIGN

Evidence obtained from a properly designed, randomized, controlled trial (Canadian Task Force classification I).

SETTING

Gynecologic Oncology Unit of the Catholic University of the Sacred Heart in Rome, Italy.

PATIENTS

Fifty patients with early cervical cancer (FIGO stages IA2, IB1, IIA <2 cm) or locally advanced cervical cancer (FIGO stages IB2, IIA >2cm, IIB) who received neoadjuvant treatment (chemotherapy or radiochemotherapy) and demonstrated a complete or partial clinical response and early stage endometrioid endometrial cancer (FIGO stages IB, II) were randomly assigned to undergo TB (arm A) or SES (arm B).

INTERVENTION

Laparoscopic radical hysterectomy with bilateral pelvic lymphadenectomy, using an easily reproducible technique was performed.

MEASUREMENTS AND MAIN RESULTS

Fifty patients were available for analysis, with 25 women randomly assigned to TB (arm A) and 25 to SES (arm B). The median operative time was 85 minutes for TB vs 115 minutes for SES (p = .001). At multivariate analysis, endometrial cancer (p = .001) and TB (p = .001) were independently associated with shorter operating time. No differences in perioperative outcomes and postoperative complications were observed between the 2 arms. Patients who underwent TB reported less postoperative pain, both at rest (p = .005) and after the Valsalva maneuver (p = .008), with less additional analgesic therapy other than standard therapy required in patients who underwent SES (p = .02).

CONCLUSION

TB is associated with shorter operative time and less postoperative pain than is the standard technique (SES) in patients with uterine cancer.

Surgical margins in breast-conserving therapy: current trends and future prospects

Inadequate surgical margins represent a high risk for adverse clinical outcome in breast-conserving therapy (BCT) for early-stage breast cancer. The majority of studies report positive resection margins in 20% to 40% of the patients who underwent BCT. This may result in an increased local recurrence (LR) rate or additional surgery and, consequently, adverse effects on cosmesis, psychological distress, and health costs. In the literature, various risk factors are reported to be associated with positive margin status after lumpectomy, which may allow the surgeon to distinguish those patients with a higher “a priori” risk for re-excision. However, most risk factors are related to tumor biology and patient characteristics, which cannot be modified as such. Therefore, efforts to reduce the number of positive margins should focus on optimizing the surgical procedure itself, because the surgeon lacks real time intraoperative information on the presence of positive resection margins during breast-conserving surgery. This review presents the status of pre- and intraoperative modalities currently used in BCT. Furthermore, innovative intraoperative approaches, such as positron emission tomography, radio-guided occult lesion localization, and near-infrared fluorescence optical imaging, are addressed, which have to prove their potential value in improving surgical outcome and reducing the need for re-excision in BCT.

Health technology assessment and thyroid surgery

The growth of technological innovation, the request for assistance, the rising patient's expectations and the interest of the industry have led to a rise in the cost of health care systems. In this context the role of the National Health System is not to delay the development or adoption of new technologies, but rather to drive the development selecting priorities and promoting its use. Health Technology Assessment (HTA) is a multidisciplinary and multidimensional approach for analyzing the medical-clinical, social, organizational, economic, ethical and legal implications of a technology (devices, drugs, procedures) through the assessment of multiple parameters such as effectiveness, safety, costs of the social and organizational impact. A health technology assessment is a comprehensive, systematic evaluation of the prerequisites for estimating the consequences of using health technology. Main characteristic of HTA is that the problem is tackled using an approach focused on four main elements: - technology; - patient; - organization; - economy. The authors have applied the HTA method for the analysis of the ultrasonic focus dissector on thyroid surgery. They compared the cost of the surgical procedure using the ultrasonic dissector and without it in a case study of 440 patients who underwent thyroidectomy.

Laparoscopic treatment of pheochromocytomas smaller or larger than 6 cm. A clinical retrospective study on 44 patients. Laparoscopic adrenalectomy for pheochromocytoma

INTRODUCTION

Laparoscopic adrenalectomy is a gold standard for the treatment of pheochromocytomas less than 6 cm in diameter. Given the difficulty in dissecting the adrenal glands, the presumed increase in the risk of malignancy, and capsular disruption there is controversy regarding minimally invasive surgery for neoplasms greater than 6 cm. The aim of this study was to report laparoscopic adrenalectomy results in 44 patients with pheochromocytomas either larger or smaller than 6 cm.

METHODS

The retrospective clinical study was conducted on 44 patients who underwent surgery in the Campania region in Italy, between January 1998 and January 2008. In 30 cases the lesion measured ≤ 6 cm (group A) in diameter and in 15 > 6 cm (group B). The authors compared cardiovascular instability, operative time, conversion rate, incidence of intra and postoperative complications, length of hospital stay, and medium long term follow-up results in the two groups of patients.

RESULTS

By comparing group A vs group B no significant differences were observed in operative time, incidence of intra and postoperative complications length of hospital stay or medium long term follow-up results. In patients with pheochromocytomas > 6 cm a higher conversion rate, although not statistically significant, was observed. The same occurred with cardiovascular instability shown by intraoperative sudden bouts of hypertension. One patient underwent "open" reoperation for residual retrocaval glandular tissue, not removed during laparoscopic treatment.

CONCLUSIONS

Laparoscopic adrenalectomy for pheochromocytoma by experienced laparoscopic surgeon is safe and probably preferable also in selected cases larger than 6 cm. These patients may have a longer operative time, a greater intraoperative blood loss, a higher conversion rate, more intraoperative hypertensive crises than other patients. Adequate preoperative pharmacological therapy and careful anaesthesia monitoring make possible optimal management of cardiovascular instability.

Peroxisome proliferator activated receptor-α/hypoxia inducible factor-1α interplay sustains carbonic anhydrase IX and apoliprotein E expression in breast cancer stem cells

AIMS

Cancer stem cell biology is tightly connected to the regulation of the pro-inflammatory cytokine network. The concept of cancer stem cells "inflammatory addiction" leads to envisage the potential role of anti-inflammatory molecules as new anti-cancer targets. Here we report on the relationship between nuclear receptors activity and the modulation of the pro-inflammatory phenotype in breast cancer stem cells.

METHODS

Breast cancer stem cells were expanded as mammospheres from normal and tumor human breast tissues and from tumorigenic (MCF7) and non tumorigenic (MCF10) human breast cell lines. Mammospheres were exposed to the supernatant of breast tumor and normal mammary gland tissue fibroblasts.

RESULTS

In mammospheres exposed to the breast tumor fibroblasts supernatant, autocrine tumor necrosis factor-α signalling engenders the functional interplay between peroxisome proliferator activated receptor-α and hypoxia inducible factor-1α (PPARα/HIF1α). The two proteins promote mammospheres formation and enhance each other expression via miRNA130b/miRNA17-5p-dependent mechanism which is antagonized by PPARγ. Further, the PPARα/HIF1α interplay regulates the expression of the pro-inflammatory cytokine interleukin-6, the hypoxia survival factor carbonic anhydrase IX and the plasma lipid carrier apolipoprotein E.

CONCLUSION

Our data demonstrate the importance of exploring the role of nuclear receptors (PPARα/PPARγ) in the regulation of pro-inflammatory pathways, with the aim to thwart breast cancer stem cells functioning.

A rare breast tumor: solid neuroendocrine carcinoma

BACKGROUND

Solid neuroendocrine carcinoma of breast (NECB) is extremely rare. In this paper, we present a case of inflammatory primary solid neuroendocrine carcinoma of breast managed by surgery and chemotherapy and a brief review of the epidemiology, clinical features, diagnosis, pathologic features, treatment, and prognosis of solid NECB.

METHODS

A 63-year-old woman was admitted in our institution with inflammatory primary solid neuroendocrine carcinoma of breast. A bulky mass of 6,5 cm tumor was located in the upper-outer and intern quadrant of her right breast. The patient underwent neo-adjuvant chemotherapy, and subsequent radical mastectomy with axillary lymph node dissection. Microscopically, the tumor was classified as solid cohesive, the tumor cells were positive for neuroendocrine markers chromogranin A and synaptophysin. 19 lymph nodes of 27 were metastatic.

RESULTS

Local recurrence and metastatic progression was noted only one month after the surgery, the patient was managed by chemotherapy and hormone-therapy. She is still alive, 24 months after diagnosis.

CONCLUSIONS

Solid neuroendocrine carcinoma is a subtype of mammary carcinoma with several distinctive features. Because of the rarity of this disease, there is no standard treatment, they are characterized by a higher propensity for local and distant recurrence, This case reinforces the importance to explore the novels therapeutics regimen and one of ways to explore is the use of VP16-cisplatine as treatment as it was partially efficacy for this kind of tumor.