New dosimetric parameters to predict ano-rectal toxicity during radiotherapy treatment.

PURPOSE: Radiotherapy is essential in the treatment of locally advanced rectal cancer. Side effects of radiotherapy in the treatment of rectal cancer have a great effect on quality of life. The aim of this retrospective study is to evaluate the correlation between dosimetric parameters and acute toxicity in rectal cancer patients. METHODS: We analyzed the Dose Volume Histogram parameters for both the target structures and the Organs at risk of 89 patients. A dedicated statistical analysis was performed for all the acute toxicities showing a frequency rate higher than 20%. A linear logistic regression model was elaborated using the variable showing the highest level of significance at the univariate analysis. RESULTS: The occurrence of proctitis was significantly correlated with three dosimetric parameters: D98% of low ano-rectum, D98% and Dmean of low ano-rectum wall. A predictive linear logistic regression model reports that the D98% of the wall of the low ano-rectum must be < 38.5 Gy to decrease the rate of proctitis. A general analysis on grade 2 acute toxicity occurrence reported that it was correlated with D98% of low ano rectum. CONCLUSIONS: Two dose constraints were elaborated: D98%<33.5 Gy for low ano rectum to prevent grade 2 acute toxicity and D98%<25 Gy for low ano-rectum wall to prevent proctitis (grade 1 or superior).

Fisurectomy and anoplasty with botulinum toxin injection in patients with chronic anal posterior fissure with hypertonia: a long-term evaluation.

Chronic anal fissure's (CAF) etiopathogenesis remain unclear. CAF of the posterior commissure (CAPF) are often characterized by internal anal sphincter (IAS) hypertonia. The treatment of this disease aimed to reduce IAS hypertonia. Due to the high rate of anal incontinence after LIS, the employment of sphincter preserving surgical techniques associated to pharmacological sphincterotomy appears more sensible. The aim of our study is to evaluate the long-term results of fissurectomy and anoplasty with V-Y cutaneous flap advancement associated to 30 UI of botulinum toxin injection for CAPF with IAS hypertonia. We enrolled 45 patients undergone to fissurectomy and anoplasty with V-Y cutaneous flap advancement and 30 UI botulinum toxin injection. All patients were followed up for at least 5 years after the surgical procedure, with evaluation of anal continence, recurrence rate and MRP (Maximum resting pressure), MSP (Maximum restricting pressure), USWA (Ultrasound wave activity). All patients healed within 40 days after surgery. We observed 3 "de novo" post-operative anal incontinence cases, temporary and minor; the pre-operative ones have only temporary worsened after surgery. We reported 3 cases of recurrences, within 2 years from surgery, all healed after conservative medical therapy. At 5 year follow-up post-operative manometric findings were similar to those of healthy subjects. At 5 years after the surgical procedure, we achieved good results, and these evidences show that surgical section of the IAS is not at all necessary for the healing process of the CAPF.

Surgical Sphincter Saving Approach and Topical Nifedipine for Chronic Anal Fissure with Hypertonic Internal Anal Sphincter.

PURPOSE: The role of augmented internal anal sphincter (IAS) tone in the genesis of posterior chronic anal fissure (CAPF) is still unknown. Lateral internal sphincterotomy is the most employed surgical procedure, nevertheless it is burdened by high risk post-operative anal incontinence. The aim of our study is to evaluate results of sphincter saving procedure with post-operative pharmacological sphincterotomy for patients affected by CAPF with IAS hypertonia. Methods: We enrolled 30 patients, undergone fissurectomy and anoplasty with V-Y cutaneous flap advancement; all patients received topical administration of nifedipine 0.3% and lidocaine 1.5% ointment-based therapy before and for 15 days after surgery. The primary goal was patient's complete healing and the evaluation of incontinence and recurrence rate; the secondary goal included the evaluation of manometry parameters, symptom relief and complications related to nifedipine and lidocaine administration. Results: All wounds healed within 40 days after surgery. We didn't observe any de novo postoperative anal incontinence case. We reported 2 cases of recurrences, healed after conservative therapy. We didn't report any local complications related to the administration of the ointment therapy; with whom all patients reported a good compliance. Conclusions: Fissurectomy and anoplasty with V-Y cutaneous advancement flap and topical administration of nifedipine and lidocaine, is an effective treatment for CAPF with IAS hypertonia.

Conservative Treatment of Splenic Haematoma After Colonoscopy: A Case Report.

Colonoscopy is a routine procedure performed worldwide, nevertheless, a small risk of splenic injury, often under-estimated, is still present. As a matter of fact, the diagnosis may be delayed, leading to a rising risk of morbidity and mortality. This paper describes a case of conservative treatment of colonoscopy-associated splenic injury. A 57-year-old woman presented with worsening pain in the upper left abdominal quadrant; she had radiation therapy to the ipsilateral subscapular region, and a diagnostic colonoscopy 18 hours earlier. The computed tomography (CT) scan revealed splenic laceration without signs of hemoperitoneum. Because of the hemodynamic stability of the patient, successful conservative treatment and serial controls of the blood and hemodynamic parameters were adopted. Even if rare splenic injury during colonoscopy is associated with significant morbidity and mortality. A high degree of clinical suspicion is essential to achieve a prompt diagnosis as well as an early surgical evaluation. The nonoperative approach is usually taken in patients with no intraperitoneal bleeding, a closed subcapsular haematoma and a stable hemodynamic status.

Gallbladder Agenesis: Report of a Preoperative Diagnosis With Magnetic Resonance Cholangiopancreatography.

Agenesis of the gallbladder is an extremely rare congenital entity with shaded clinical and radiologic features, which make the preoperative diagnosis really challenging. Here, we report a case of a 52-year-old symptomatic female with biliary symptoms and contracted gallbladder at ultrasound (US). The final diagnosis was made with magnetic resonance cholangiopancreatography (MRCP) and the treatment was conservative. However, diagnosing this condition preoperatively is still challenging. However, with innovations in terms of biliary tract imaging technique, and with better knowledge of this entity, many unnecessary surgical procedures might be avoided.

Long term outcomes of fissurectomy and anoplasty for chronic anterior anal fissure without hypertonia: low recurrences and continence conservation.

INTRODUCTION: Aetiopathogenesis of Chronic Anal Anterior Fissure (CAAF) remains poorly understood. Some anatomical, clinical and functional features suggest that pathophysiology may be linked to a reduced anal canal pressure. LIS appear illogical as a treatment for CAAF and the employ of techniques aiming to save the integrity of the sphincterial system appears more sensible. The aim of this study was to evaluate 5 years results of fissurectomy and anoplasty with cutaneous V-Y advancement flap in patients affected by CAAF without IAS hypertonia. METHODS: We enrolled 20 women, affected by idiopathic and non-recurrent CAAF without hypertonic IAS. All patients were followed up for 5 years after surgery with evaluation of anal continence, short and long term post-operative complications, recurrence rate. RESULTS: At 5 years follow up we did not record any new case of anal incontinence and the pre-existing ones haven't worsened. We observed 2 recurrences, which occurred within 2 years after surgery and healed after medical therapy. The manometric values were similar than those recorded prior to surgery. CONCLUSION: Our study suggests that the procedure performed allows us to preserve anal continence and avoid worsening of its pre-existing alteration. KEY WORDS: Anal canal, Anoplasty, Fissure, Fissurectomy, Proctology, Sphincterotomy.

Mesothelial cyst of the round ligament of the uterus A case report of a rare condition.

BACKGROUND: Differential diagnosis of inguinal mass must include, especially in female patients, a wide variety of lesions among which our analysis will focus on mesothelial cyst of the round ligament of the uterus. A rare developmental lesion often misdiagnosed as hernias and accidentally detected during surgical exploration of the groin region. CASE REPORT: Of a left inguinal mass causing local discomfort and progressive worsening of local pain. A pre-operative diagnosis of left symptomatic femoral hernia was made and the patient consented to surgical treatment. The surgical exploration of the inguinal and femoral canals revealed a femoral hernia associated to a clear fluid cystic lesion of around 2 cm arising from the round ligament. Histopathology demonstrated a mesothelial cyst of the round ligament CONCLUSIONS: Mesothelial cysts of the round ligament of the uterus must be taken into consideration in the differential diagnosis of groin swelling in female patients and a greater effort is needed in order to reach a preoperative diagnosis and prevent an over treatment. Key words: Mesothelial cyst, Preoperative diagnosis, Uterus.

Giant pseudocyst of the abdominal wall following incisional ventral hernia repair: an extremely rare clinical entity. Report of a case.

BACKGROUND: The gold standard treatment for incisional ventral hernia (IVH) is a surgical repair with mesh employment, nevertheless this procedure is burdened by several post-operative complications; among these latter, giant pseudocyst of abdominal wall (GPAW) formation is one of the most rare and its etiopathogenesis remains unclear. CASE REPORT: We describe the case report of a 36 years old, diabetic and obese woman, previously underwent to a csection and IVH repair with on-lay mesh placement, presented to our unit with an asymptomatic left iliac fossa swelling. At ultrasound (US) and CT scan examination it appears to be a subcutaneous cyst of the anterior abdominal wall associated with a recurrent IVH. Therefore, she underwent to a surgical procedure in order to accomplish a complete excision of the lesion along with a repair of the incisional IVH, with a sub-lay mesh positioning. The extensive dead space resulting from the procedure was managed with a quilting suture. No recurrence or complications have been detected at 2 years follow up. CONCLUSION: GPAWs are a rare clinical entity following IVH repair, which occur commonly in female obese patients treated with on-lay mesh positioning. The only effective and definitive treatment is a complete surgical excision along with a correct management of the dead space resulting from the surgical procedure, in order to reduce the recurrence rate. KEY WORDS: Abdominal wall, Incisional hernia, Mesh, Pseudocyst, Surgery.

Superior Mesenteric Artery Syndrome: Clinical, Endoscopic, and Radiological Findings.

BACKGROUND: The superior mesenteric artery (SMA) syndrome is a rare entity presenting with upper gastrointestinal tract obstruction and weight loss. Studies to determine the optimal methods of diagnosis and treatment are required. AIMS AND METHODS: This study aims at analyzing the clinical presentation, diagnosis, and management of SMA syndrome. Ten cases of SMA syndrome out of 2074 esophagogastroduodenoscopies were suspected. A contrast-enhanced computed tomography (CECT) scan was performed to confirm the diagnosis. After, a gastroenterologist and a nutritionist personalized the therapy. Furthermore, we compared the demographical, clinical, endoscopic, and radiological parameters of these cases with a control group consisting of 10 cases out of 2380 EGDS of initially suspected (but not radiologically confirmed) SMA over a follow-up 2-year period (2015-2016). RESULTS: The prevalence of SMA syndrome was 0.005%. Median age and body mass index were 23.5 years and 21.5 kg/m2, respectively. Symptoms developed between 6 and 24 months. Median aortomesenteric angle and aorta-SMA distance were 22 and 6 mm, respectively. All patients improved on conservative treatment. In our series, a marked (>5 kg) weight loss (p = 0.006) and a long-standing presentation (more than six months in 80% of patients) (p = 0.002) are significantly related to a diagnosis of confirmed SMA syndrome at CECT after an endoscopic suspicion. A "resembling postprandial distress syndrome dyspepsia" presentation may be helpful to the endoscopist in suspecting a latent SMA syndrome (p = 0.02). The narrowing of both the aortomesenteric angle (p = 0.001) and the aortomesenteric distance (p < 0.001) was significantly associated with the diagnosis of SMA after an endoscopic suspicion; however, the narrowing of the aortomesenteric distance seemed to be more accurate, rather than the narrowing of the aortomesenteric angle. CONCLUSION: SMA syndrome represents a diagnostic and therapeutic challenge. Our results show the following findings: the importance of the endoscopic suspicion of SMA syndrome; the preponderance of a long-standing and chronic onset; a female preponderance; the importance of the nutritional counseling for the treatment; no need of surgical intervention; and better diagnostic accuracy of the narrowing of the aorta-SMA distance. Larger prospective studies are needed to clarify the best diagnosis and management of the SMA syndrome.

Minimally invasive surgical approach for radicalization of incidental post-cholecystectomy gallbladder carcinoma: safety, feasibility and outcomes.

BACKGROUND AND AIMS: Gallbladder carcinoma is a rare but aggressive malignant neoplasm. The incidence of intra- or post-operative incidental gallbladder carcinoma diagnosis following laparoscopic cholecystectomy is estimated to be 1-2%. Aggressive re-resection is warranted as the majority of patients have residual disease either in the liver or the lymph nodes. However the use of a minimally invasive surgical approach (MISA) to perform a radicalization in these patients has not been investigated yet. We retrospectively analyzed surgical and oncologic outcome of a small selected cohort of patients with incidental gallbladder carcinoma whom underwent redo radicalization surgery by MISA. MATERIAL AND METHODS: From April 2012 to June 2014 at our department six patients (three females and three males) with incidental findings of gallbladder carcinoma pT1b (stage I) following laparoscopic cholecystectomy, and referred to our center from other secondary-level referral hospitals, underwent a redo surgery for radicalization by means of laparoscopic (n. 3) or robotic approach (n. 3). A retrospective analysis of prospective collected data was performed. RESULTS: The redo procedure consisted of a liver resection (segments IVb + V) and lymph nodes clearance of hepatoduodenal hilum and common hepatic artery. Conversion rate was zero. Median operative time was 290 (250-310) min. Estimate blood loss was 175 (100-350) ml. Total hospital stay was 6 (5-10) days. All liver resections were performed without inflow vascular clamping. One patient was re-operated for hemoperitoneum while peri-operative mortality was zero. Oncologically, an R0 resection was always achieved with a mean number of lymph nodes retrieved of 17,5 (14-22). The stage of the neoplasm was confirmed in all cases but one, who was found to have a pN1 status (stage IIIb). At 21 (6-32) months follow-up all patients are alive and no recurrence has been observed. CONCLUSIONS: Our data suggest that radicalization of patients with stage I incidental postoperative gallbladder carcinoma can be done by a MISA without compromising the oncologic outcome. Larger studies are needed to validate these results.

Self-expandable metal stent placement for closure of a leak after total gastrectomy for gastric cancer: report on three cases and review of the literature.

In the setting of the curative oncological surgery, the gastric surgery is exposed to complicated upper gastrointestinal leaks, and consequently the management of this problem has become more critically focused than was previously possible. We report here three cases of placement of a partially silicone-coated SEMS (Evolution Controlled Release Esophageal Stent System, Cook Medical, Winston-Salem, NC, USA) in patients who underwent total gastrectomy with Roux-en-Y end-to-side esophagojejunostomy for a gastric adenocarcinoma. The promising results of our report, despite the small number of patients, suggest that early stenting (through a partially silicone-coated SEMS) is a feasible alternative to surgical treatment in this subset of patients. In fact, in the treatment of leakage after total gastrectomy, plastic stents and totally covered metallic stents may not adhere sufficiently to the esophagojejunal walls and, as a result, migrate beyond the anastomosis. However, prospective studies with a larger number of patients might assess the real effectiveness and safety of this procedure.

[Laparoscopic incisional hernia repair: our experience and review of the literature]. / La riparazione laparoscopica del laparocele. Revisione della letteratura e nostra esperienza.

Incisional hernia after laparotomy closure continues to be an important postoperative complication. Historically, the best results have been obtained with the open Rives-Stoppa technique. This approach is done by fixing a prosthetic mesh behind the posterior fascia of the rectus muscle. The laparoscopic approach allows similar mesh placement with minimal dissection. In this study, we review the scientific literature and report our experience, describing the clinical outcome of patients who have undergone laparoscopic repair of ventral hernias. After describing the standard technique of laparoscopic insertion of a prosthesis, we reviewed the records of all our patients who underwent such a procedure from March 2004 to January 2006. A laparoscopic approach was attempted in all patients. The patients' demographic characteristics, operative details and outcomes were recorded. Of 55 patients scheduled to undergo laparoscopic incisional herniorrhaphy, conversion to an open procedure was necessary in 2/55 (3.6%). All the remaining 53 patients (31 men and 22 women; mean age 51.8 years) underwent laparoscopic repair of ventral hernias. The mean fascial defect size was 98.3 cm (range: 5-200 cm). In 52/53 patients (98%) a dual mesh was used. 40% of patients (22/53) had multiple wall defects. The mean operative time was 90 minutes (range: 32-190 minutes). The average hospital stay was 2.6 days (range: 1-16 days). 50/53 patients (94.3%) tolerated an oral diet 24 hours after the operation. 49/53 (92.4%) returned to normal working activity within two weeks. The percentage of complications amounted to 13% (7/55), with 5.6% (5/53) minor and 3.7% (2/55) major complications. In one patient it was necessary to remove the mesh 6 months after surgery because of pain. The recurrence rate of 5.6% confirms the permanence of the repair. The follow-up was 12 months for 44/53 patients and 6 months for 9/53 patients. The procedure for incisional hernia repair used in our study may be performed safely with low complication and recurrence rates and should be considered for the majority of incisional hernia repairs requiring a mesh prosthesis.