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1.
J Clin Med ; 12(6)2023 Mar 12.
Article in English | MEDLINE | ID: mdl-36983199

ABSTRACT

To date, the exact pathophysiology of haemorrhoids is poorly understood. The different philosophies on haemorrhoids aetiology may lead to different approaches of treatment. A pathogenic theory involving a correlation between altered anal canal microflora, local inflammation, and muscular dyssynergia is proposed through an extensive review of the literature. Since the middle of the twentieth century, three main theories exist: (1) the varicose vein theory, (2) the vascular hyperplasia theory, and (3) the concept of a sliding anal lining. These phenomena determine changes in the connective tissue (linked to inflammation), including loss of organization, muscular hypertrophy, fragmentation of the anal subepithelial muscle and the elastin component, and vascular changes, including abnormal venous dilatation and vascular thrombosis. Recent studies have reported a possible involvement of gut microbiota in gut motility alteration. Furthermore, dysbiosis seems to represent the leading cause of bowel mucosa inflammation in any intestinal district. The alteration of the gut microbioma in the anorectal district could be responsible for haemorrhoids and other anorectal disorders. A deeper knowledge of the gut microbiota in anorectal disorders lays the basis for unveiling the roles of these various gut microbiota components in anorectal disorder pathogenesis and being conductive to instructing future therapeutics. The therapeutic strategy of antibiotics, prebiotics, probiotics, and fecal microbiota transplantation will benefit the effective application of precision microbiome manipulation in anorectal disorders.

2.
Life (Basel) ; 11(7)2021 Jun 25.
Article in English | MEDLINE | ID: mdl-34202398

ABSTRACT

Airway cancers have been increasing in recent years. Tracheal resection is commonly performed during surgery and is burdened from post-operative complications severely affecting quality of life. Tracheal resection is usually carried out in primary tracheal tumors or other neoplasms of the neck region. Regenerative medicine for tracheal replacement using bio-prosthesis is under current research. In recent years, attempts were made to replace and transplant human cadaver trachea. An effective vascular supply is fundamental for a successful tracheal transplantation. The use of biological scaffolds derived from decellularized tissues has the advantage of a three-dimensional structure based on the native extracellular matrix promoting the perfusion, vascularization, and differentiation of the seeded cell typologies. By appropriately modulating some experimental parameters, it is possible to change the characteristics of the surface. The obtained membranes could theoretically be affixed to a decellularized tissue, but, in practice, it needs to ensure adhesion to the biological substrate and/or glue adhesion with biocompatible glues. It is also known that many of the biocompatible glues can be toxic or poorly tolerated and induce inflammatory phenomena or rejection. In tissue and organ transplants, decellularized tissues must not produce adverse immunological reactions and lead to rejection phenomena; at the same time, the transplant tissue must retain the mechanical properties of the original tissue. This review describes the attempts so far developed and the current lines of research in the field of tracheal replacement.

3.
Surg Technol Int ; 38: 23-27, 2021 05 20.
Article in English | MEDLINE | ID: mdl-33537983

ABSTRACT

BACKGROUND: Arteriovenous fistula (AVF) is the vascular access of choice for hemodialysis patients. A correct microsurgical vascular anastomoses is essential to the optimal care of patients. Loupes can help surgeons perform such procedures, but often cause neck or back pain and fatigue. AIM: This study aimed to evaluate whether a video telescopic operating microscope (VITOM®; Karl Storz Endoscopy GmbH, Tuttlingen, Germany) could be used as a substitute for loupes to create microsurgical vascular anastomoses. METHODS: We evaluated microsurgical anastomoses with VITOM® in 10 patients (6 male, 4 female) from January 2019 to December 2019. The created anastomoses were 7 side-to-side, 2 side-to-end and 1 end-to-end. RESULTS: A valid thrill was always present on palpation. Surgical procedures had an average time of 87.6 min, ranging from 49 to 110 min. Eight patients had AVF maturation; in the remaining 2, one had a thrombosis after 25 days and one couldn't be dialyzed due to low flow in AVF. CONCLUSIONS: The VITOM® system makes it possible to carry out anastomosis in difficult cases. It is both safe and useful for the training of young surgeons.


Subject(s)
Arteriovenous Fistula , Surgeons , Anastomosis, Surgical , Female , Humans , Male
4.
J Med Case Rep ; 15(1): 85, 2021 Feb 18.
Article in English | MEDLINE | ID: mdl-33597001

ABSTRACT

BACKGROUND: Wound healing is a complex and dynamic process. Healing of acute and chronic wounds can be impaired by patient factors (that is, comorbidities) and/or wound factors (that is, infection). Regenerative medicine products, such as autologous/homologous platelet-rich plasma gel, may speed up the healing process. Autologous/homologous platelet-rich plasma is an advanced wound therapy used for hard-to-heal acute and chronic wounds. The cytokines and growth factors contained in platelet-rich plasma play a crucial role in the healing process. CASE PRESENTATION: A 61-year-old Caucasian male patient, suffering from mental retardation following meningitis, with a transplanted kidney due to prior renal impairment, and under immunosuppressant therapy, was submitted to aneurysmectomy of his proximal left forearm arteriovenous fistula. A few days later, the patient came to our attention with substantial blood loss from the surgical site. The wound presented no signs of healing, and after fistula reparation and considering persistent infection of the surgical site (by methicillin-resistant Staphylococcus aureus), surgeons decided for second-intention healing. To favor healing, 10 mL homologous platelet concentrate gel was sequentially applied. After each application, wound was covered with nonadherent antiseptic dressing. After only seven applications of homologous platelet concentrate gel, wound completely recovered and no amputation was necessary. CONCLUSIONS: Topical application of homologous platelet-rich plasma gel in healing wound shows beneficial results in wound size reduction and induces granulation tissue formation. Platelet-rich plasma could be a safe and cost-effective treatment for managing the cutaneous wound healing process to shorten the recovery period and thereby improve patient quality of life.


Subject(s)
Methicillin-Resistant Staphylococcus aureus , Platelet-Rich Plasma , Humans , Intention , Male , Middle Aged , Quality of Life , Wound Healing
5.
J Med Case Rep ; 14(1): 196, 2020 Oct 20.
Article in English | MEDLINE | ID: mdl-33076984

ABSTRACT

BACKGROUND: Anastomotic recurrences of the colon are postulated to arise due to inadequate margins, tumor implantation by exfoliated cells, altered biological properties of bowel anastomosis, and missed synchronous lesions. In this paper, a case of unexpected early local recurrence after surgery for colon cancer is presented. CASE PRESENTATION: A 68-year-old Caucasian man underwent right hemicolectomy for invasive G2 adenocarcinoma. Two months later, endoscopy revealed a wide and well-functioning anastomosis with a hyperemic, hard, and thickened mucosal area of about 2 cm in diameter. Biopsies showed the presence of an adenocarcinoma with the same grading of the previous lesion. Ten days later, the patient underwent a new intervention; the last 10 cm of the ileum and half of the remaining transverse colon were resected, and the patient started adjuvant therapy. Specimen examination confirmed the presence of an adenocarcinoma (G2) penetrating the muscular layer of the wall; also, in this case, resection edges were free from tumoral invasion, and the removed lymph nodes were exempt from neoplastic colonization. The patient was seen in follow-up for about 5 years, and he did not show local or systemic manifestations. CONCLUSIONS: Whenever a neoplastic recurrence on the anastomotic line occurs, in the presence of negative intestinal margins, as usual in right colectomies, the implantation of neoplastic cells could be the possible cause.


Subject(s)
Colonic Neoplasms , Neoplasm Recurrence, Local , Aged , Anastomosis, Surgical , Colectomy , Colonic Neoplasms/surgery , Humans , Male , Neoplasm Recurrence, Local/surgery
6.
Ann Thorac Cardiovasc Surg ; 26(6): 320-326, 2020 Dec 20.
Article in English | MEDLINE | ID: mdl-32418926

ABSTRACT

BACKGROUND: The lobar airway stenting remains an endoscopic procedure not well standardized in patients with locally advanced lung cancer disease. The goal of this study was to evaluate technical feasibility, clinical outcome, and complications of different stents in patients with malignant lesions involving lobar bronchi, primary and secondary carina. METHODS: Between November 2008 and October 2013, we retrospectively analyzed 146 patients with benign and malignant tracheobronchial stenosis who underwent airway stent insertion below main carina and main bronchi. RESULTS: In all, 170 airway stenting procedures were performed on 146 patients. In all, 51 of them with malignant peripheral airway stenosis underwent stents placement below main carina. In all but one patient, the deployment of stents was successful with improvement of symptoms. The chest radiograph after the procedure detected the lung re-expansion in 29 of 51 patients. The mean follow-up duration was 123 days ± 157. Complications observed included stent migration, tumor overgrowth, infections, granulation tissue formation, and obstruction due to tenacious secretions. Longer survival was observed in patients who received additional treatment after airway stenting compared to those who did not (p <0.01). CONCLUSIONS: Stenting of lobar bronchi and primary or secondary carina is technically feasible, effective, and acceptably safe.


Subject(s)
Airway Obstruction/therapy , Bronchi , Bronchoscopy/instrumentation , Lung Neoplasms/complications , Palliative Care , Stents , Tracheal Stenosis/therapy , Aged , Aged, 80 and over , Airway Obstruction/diagnostic imaging , Airway Obstruction/etiology , Bronchi/diagnostic imaging , Bronchoscopy/adverse effects , Feasibility Studies , Female , Humans , Lung Neoplasms/pathology , Male , Middle Aged , Retrospective Studies , Tracheal Stenosis/diagnostic imaging , Tracheal Stenosis/etiology , Treatment Outcome
7.
BMC Surg ; 18(Suppl 1): 128, 2019 Apr 24.
Article in English | MEDLINE | ID: mdl-31074390

ABSTRACT

BACKGROUND: laparoscopic adrenalectomy has become the standard treatment for adrenal lesions. The better clinical outcoms of laparoscopic technique are valid for treatment of small benign masses (< 5-6 cm), instead there are still open questions in literature regarding the correct management of larger lesions (> 6 cm) or in case of potentially malignant adrenal tumors. The aim of this study is to evaluate the outcomes of laparoscopic adrenalectomy in a referral surgical department for endocrine surgery. METHODS: at the University Hospital Policlinico "P. Giaccone" of Palermo between January 2010 and December 2017 we performed a total of 81 laparoscopic adrenalectomy. We created a retrospective database with analysis of patients data, morphologic and hormonal characteristics of adrenal lesions, surgical procedures and postoperative results with histological diagnosis and complications. RESULTS: Mean size of adrenal neoplasm was 7,5 cm (range 1.5 to 18 cm). The mean operative time was 145 min (range 75-240). In statistical analysis lenght of surgery was correlated to the lesion diameter (p < 0.05) but not with pre-operative features or histological results. 5 intraoperative complications occurred. Among these patients 4 presented bleeding and 1 a diaphagmatic lesion. No conversion to open surgery was necessary and no intraoperative blood transfusion were required. Mean estimated blood loss was 95 ml (range 50-350). There was no capsular disruption during adrenal dissection. Mean length of hospital stay was 3.7 days (range 3-6 days). CONCLUSIONS: Laparoscopic adrenalectomy is a safe procedure with low rate of morbidity. An accurate preoperative radiological examination is fundamental to obtain a stringent patients selection. The lesion diameter is related to longer operative time and appeares as the main predictive parameter of intraoperative complications but these results are not statistically significant. On the other side secreting adrenal tumors require more attention in operative management without increased rate of postoperative complications.


Subject(s)
Adrenal Gland Neoplasms/surgery , Adrenalectomy/methods , Laparoscopy/methods , Adult , Aged , Aged, 80 and over , Female , Hemorrhage/epidemiology , Humans , Intraoperative Complications/epidemiology , Length of Stay , Male , Middle Aged , Operative Time , Patient Selection , Postoperative Complications/epidemiology , Postoperative Period , Retrospective Studies
8.
Acta Biomed ; 90(1): 11-15, 2019 01 23.
Article in English | MEDLINE | ID: mdl-30889150

ABSTRACT

Idiopathic granulomatous mastitis (IGM) is a chronic benign inflammatory disease of the breast that may mimic breast cancer. It is most common in parous young fertile women, although it can occur in nulliparous women and in men. IGM is an idiopathic disease due to the influence of some environmental factors in genetically predisposed subjects. Several pathogenic hypothesis have been proposed in the last years (autoimmune, hormonal, infective genesis). IGM presents as a painful palpable mass located in one of the two udders. The skin is usually normal but could present signs of inflammation with or without lymph nodes involvement. Ultrasonography, mammography, magnetic resonance can be diagnosed an IGM, but pathognomonic radiological signs has not yet reported in literature. Biopsy findings show granulomatous lesion centered on the breast lobule, as in granulomatous mastitis induced by tuberculosis or sarcoidosis. The aim of this review of literature is to verify the development of new advanced diagnostic techniques and multidisciplinary approach for this condition. In the last years innovative approaches have modified IGM diagnosis and therapy, avoiding surgery in most of cases, introducing a more conservative medical approach based on recent etiopathological hypothesis.


Subject(s)
Granulomatous Mastitis/diagnosis , Female , Granulomatous Mastitis/etiology , Granulomatous Mastitis/pathology , Humans , Selective Serotonin Reuptake Inhibitors/adverse effects
9.
J Med Case Rep ; 13(1): 43, 2019 Feb 25.
Article in English | MEDLINE | ID: mdl-30798788

ABSTRACT

INTRODUCTION: Hepatic abscess can be defined as an encapsulated collection of suppurative material within the liver parenchyma. Hepatic abscess can be distinguished as pyogenic, amebic, or fungal. Biliary tract disease remains the most common cause of hepatic abscess today, and the most common complications range from pleural effusion, empyema, and bronchohepatic fistula to subphrenic abscess and rupture into the peritoneal cavity, stomach, colon, vena cava, or kidney. A large abscess compressing the inferior vena cava and the hepatic veins may result in Budd-Chiari syndrome. In this report, we present a rare case of hepatic abscess with an unusual evolution that was treated with a noninvasive approach. CASE PRESENTATION: A 79-year-old Caucasian woman underwent endoscopic bile stone extraction and laparoscopic cholecystectomy. Six months later, a hepatic abscess in association with bilateral effusion was diagnosed. The prompt imaging-guided drainage solved the case. Three years later, she came to our attention complaining of dull, diffuse abdominal pain and high body temperature (38 °C). A retroperitoneal abscess was diagnosed that was spreading to the right lateral wall of the abdomen and extending across the muscular wall to the subcutaneous layer. The fluid collection also involved the right pleural cavity, forming an empyema. Also in this case, an imaging-guided drainage was performed, and the patient's clinical picture resolved in a few days. The retroperitoneal abscess recurred 14 months later, and it was dealt with using the same treatment. Three months from the last follow-up, the patient came back to our attention with an evident swelling of her right lumbar region. Computed tomography revealed a right inferior lumbar hernia comprising adipose tissue and the right kidney. A surgical intervention was recommended to the patient, but, owing to her poor general health, she refused any invasive approach. CONCLUSIONS: Retroperitoneal abscess is an uncommon complication of biliary tract surgery and represents a potential cause of death, especially in those patients with multiple diseases. Prompt drainage is crucial to the treatment. Failure in eliminating the primary infective focus could bring complications and, in general, a weakness of lumbar muscular wall, even resulting in a rare case of lumbar hernia.


Subject(s)
Biliary Tract Surgical Procedures , Hernia, Abdominal/complications , Hernia, Abdominal/diagnostic imaging , Liver Abscess/complications , Liver Abscess/therapy , Postoperative Complications/diagnostic imaging , Postoperative Complications/therapy , Aged , Diagnosis, Differential , Drainage , Female , Humans , Liver Abscess/diagnostic imaging , Lumbosacral Region/diagnostic imaging , Recurrence , Retroperitoneal Space/diagnostic imaging , Tomography, X-Ray Computed
10.
Acta Biomed ; 89(3): 337-342, 2018 10 08.
Article in English | MEDLINE | ID: mdl-30333456

ABSTRACT

BACKGROUND: A suitable, effective and free of complications anesthetic protocol is very important in experimental studies on animal models since it could bias the outcome of a trial. To date there is no universally accepted protocol for induction, maintenance and recovery from anesthesia. The endotracheal intubation with the use of inhalation anesthesia is used very especially in the from of large size laboratory animals, because it is a secure and easy control mode. However, it is not common for small laboratory animals because of the high technical skills required. AIM: The aim of this paper is a review of the main methods of induction of anesthesia in laboratory animals. MATERIALS AND METHODS: We performed an electronic search of MEDLINE (PubMed interface), ISI Web of Science and Scopus using the keywords "anesthesia" and "animal (s)" or "protocol (s)" or "surgery", without the data or the language restriction. We consider only the most common laboratory animals (rats, mice, rabbits, pigs). We identify all the scientific articles that refer to the use of anesthetics for studies on laboratory animals in all areas: experimental surgery, CT, MRI, PET. All documents identified the search criteria are subject to review only by identifying relevant studies. CONCLUSIONS: There is a strong need for application of existing guidelines for research on experimental animals; specific guidelines for anesthesia and euthanasia should be considered and reported in future studies to ensure comparability and quality of animal experiments.


Subject(s)
Anesthesia, General/methods , Animals, Laboratory , Anesthesia, General/standards , Anesthetics/administration & dosage , Animals , Euthanasia, Animal/methods , Guidelines as Topic , Intraoperative Complications/prevention & control , Intubation, Intratracheal/methods , Mammals , Monitoring, Intraoperative/methods , Preanesthetic Medication , Sample Size , Species Specificity
12.
Acta Biomed ; 88(3): 325-328, 2017 10 23.
Article in English | MEDLINE | ID: mdl-29083339

ABSTRACT

BACKGROUND: Secondary hyperparathyroidism is a common acquired disorder seen in chronic renal failure. Its pathophysiology is mainly due to hyperphosphatemia and vitamin D deficiency and resistance. When medical treatment fails, subtotal and total parathyroidectomy with autotransplantation are the standard procedures, although both are associated with high recurrence rates. METHODS AND RESULTS: 4 patients experienced persistence and 9 relapse. The first 4 were subjected to reoperation after 6 months for the persistence of symptoms due to the finding of a supernumerary adenomatous gland while the remaining patients at the reoperation showed in 5 cases 2 more glands in over thymic position, and 4 an hyperplasia of the residual glandular tissue. A classic cervicotomy was sufficient to remove the residual parathyroid in patients with persistent hyperparathyroidism. For cases of recurrent hyperparathyroidism it was enough a medial approach and sometimes lateral for the complete excision of the hyperplastic tissue. The advent of the intraoperative technique of parathyroid hormone dosage allowed a better performance of the surgical technique for the last 3 patients undergoing reoperation. After reoperation all patients had immediate regression of clinical symptoms with normalization of serum calcium and PTH levels. CONCLUSIONS: On the basis of these considerations, diagnostic imaging has a not negligible role because during the first intervention helps to have an idea of the possible location of the glands and thus to avoid the risk of recurrence and relapse due to ectopic or supernumerary tissue.


Subject(s)
Hyperparathyroidism, Secondary/surgery , Parathyroidectomy , Humans , Hyperparathyroidism, Secondary/diagnosis , Hyperparathyroidism, Secondary/etiology , Kidney Failure, Chronic/complications , Kidney Failure, Chronic/therapy , Recurrence , Renal Dialysis , Reoperation , Retrospective Studies
13.
J Med Case Rep ; 11(1): 75, 2017 Mar 21.
Article in English | MEDLINE | ID: mdl-28320457

ABSTRACT

BACKGROUND: Plasmoblastic lymphoma is a rare and aggressive subtype of diffuse large B cell lymphoma, which occurs usually in the jaw of immunocompromised subjects. CASE PRESENTATION: We describe the occurrence of plasmoblastic lymphoma in the mediastinum and chest wall skin of an human immunodeficiency virus-negative 63-year-old Caucasian man who had had polycytemia vera 7 years before. At admission, the patient showed a superior vena cava syndrome, with persistent dyspnoea, cough, and distension of the jugular veins. Imaging findings showed a 9.7 × 8 × 5.7 cm mediastinal mass. A chest wall neoformation biopsy and ultrasound-guided fine-needle aspiration biopsy of the mediastinal mass allowed diagnosis of plasmoblastic lymphoma and establishment of an immediate chemotherapeutic regimen, with rapid remission of compression symptoms. CONCLUSIONS: Plasmoblastic lymphoma is a very uncommon, difficult to diagnose, and aggressive disease. The presented case represents the first rare mediastinal plasmoblastic lymphoma in a human immunodeficiency virus-/human herpesvirus-8-negative patient. Pathologists should be aware that this tumor does appear in sites other than the oral cavity. Fine-needle aspiration biopsy is a low-cost, repeatable, easy-to-perform technique, with a high diagnostic accuracy and with very low complication and mortality rates. Fine-needle aspiration biopsy could represent the right alternative to surgery in those patients affected by plasmoblastic lymphoma, being rapid and minimally invasive. It allowed establishment of prompt medical treatment with subsequent considerable reduction of the neoplastic tissue and resolution of the mediastinal syndrome.


Subject(s)
Jugular Veins/pathology , Mediastinal Neoplasms/diagnosis , Mediastinum/pathology , Plasmablastic Lymphoma/diagnosis , Polycythemia Vera/diagnosis , Thrombosis/diagnostic imaging , Biopsy, Fine-Needle , Cough/etiology , Dyspnea/etiology , HIV Seronegativity , Herpesviridae Infections/diagnosis , Herpesviridae Infections/therapy , Herpesvirus 8, Human , Humans , Jugular Veins/diagnostic imaging , Male , Mediastinal Neoplasms/drug therapy , Mediastinal Neoplasms/pathology , Middle Aged , Plasmablastic Lymphoma/drug therapy , Plasmablastic Lymphoma/pathology , Polycythemia Vera/drug therapy , Polycythemia Vera/pathology , Syndrome , Thrombosis/therapy , Treatment Outcome , Ultrasonography
14.
Article in English | MEDLINE | ID: mdl-27623957

ABSTRACT

AIM: Intestinal dysbiosis seems to be the leading cause of inflammatory bowel diseases, and probiotics seems to represent the proper support against their occurrence. Actually, probiotic blends and anti-inflammatory drugs represent a weapon against inflammatory bowel diseases. The present study evaluates the long-term (2 years) effects of combination therapy (mesalazine plus a probiotic blend of Lactobacillus salivarius, Lactobacillus acidophilus and Bifidobacterium bifidus strain BGN4) on ulcerative colitis activity. METHOD: Sixty patients with moderate-to-severe ulcerative colitis were enrolled: 30 of them were treated with a single daily oral administration of mesalazine 1200 mg; 30 patients received a single daily oral administration of mesalazine 1200 mg and a double daily administration of a probiotic blend of Lactobacillus salivarius, Lactobacillus acidophilus and Bifidobacterium bifidus strain BGN4. The treatment was carried out for two years and the clinical response evaluated according to the Modified Mayo Disease Activity Index. RESULTS: All patients treated with combination therapy showed better improvement compared to the controls. In particular, the beneficial effects of probiotics were evident even after two years of treatment. CONCLUSIONS: A long-term treatment modality of anti-inflammatory drugs and probiotics is viable and could be an alternative to corticosteroids in mild-to moderate ulcerative colitis.


Subject(s)
Colitis, Ulcerative/drug therapy , Probiotics/therapeutic use , Adult , Aged , Analysis of Variance , Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Bifidobacterium bifidum , Double-Blind Method , Drug Therapy, Combination , Female , Humans , Lactobacillus acidophilus , Ligilactobacillus salivarius , Male , Mesalamine/therapeutic use , Middle Aged , Treatment Outcome
15.
Acta Biomed ; 87(1): 13-5, 2016 05 06.
Article in English | MEDLINE | ID: mdl-27163890

ABSTRACT

INTRODUCTION: Endotracheal intubation in the rat is difficult because of the extremely small size of anatomical structures (oral cavity, epiglottis and vocal cords), small inlet for an endotracheal tube and the lack of proper technical instruments. MATERIAL AND METHODS: In this study we used seventy rats weighting 400-500 g. The equipment needed for the intubation was an operating table, a longish of cotton, a cotton tip, orotracheal tube, neonatal laryngoscope blades, KTR4 small animal ventilator and isoflurane for inhalation anaesthesia. Premedication was carried out by medetomidine hydrochloride 1 mg/mL; then, thanks to a closed glass chamber, a mixture of oxygen and isoflurane was administered. By means of a neonatal laryngoscope the orotracheal tube was advanced into the oral cavity until the wire guide was visualized trough the vocal cords; then it was passed through them. The tube was introduced directly into the larynx over the wire guide; successively, the guide was removed and the tube placed into the trachea. Breathing was confirmed using a glove, cut at the end of a finger, simulating a small balloon. RESULTS: We achieved a fast and simple orotracheal intubation in all animals employed. CONCLUSIONS: We believe that our procedure is easier and faster than those previously reported in scientific literature.


Subject(s)
Intubation, Intratracheal/methods , Animals , Rats
16.
Acta Biomed ; 87(3): 271-274, 2016 01 16.
Article in English | MEDLINE | ID: mdl-28112693

ABSTRACT

BACKGROUND AND AIM: The aim of the present work is to evaluate the effectiveness of the use of ultrasound scalpel during laparoscopic ovariectomy in the bitch. METHODS: Two groups of 10 subjects each, of different races and ages, were compared. In the first group, ovariectomy was performed laparoscopically, using harmonic scalpel to remove ovary. In the second group surgery was performed by means of classical laparotomy. RESULTS: Pre-operative time was similar in both groups. Total operative time, from incision to skin suture, showed significant difference between the two groups, being laparoscopy faster than laparotomy. Partial operative time for bilateral oophorectomy resulted lower using open technique, but, considering each ovary, there was no significant difference in both groups. CONCLUSIONS: The use of harmonic scalpel to perform ovariectomy during laparoscopy is an effective time-sparing surgical approach compared to the already great practicality of laparotomy.


Subject(s)
Laparoscopy , Laparotomy , Ovariectomy/methods , Animals , Dogs , Female , Operative Time
17.
Int J Surg ; 28 Suppl 1: S128-32, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26708705

ABSTRACT

Primary Neuroendocrine Tumours (NETs) of the gallbladder are rare. Among all NETs of the gallbladder, large cell neuroendocrine carcinoma (LCNEC) is exceedingly rare. In most of the cases LCNECs are combined with other histological components. We reviewed clinical presentation and management of all patients with "pure" LCNEC from published literature since the first case was published in 2000, as well as one patient from our experience. Only 7 cases of "pure" LCNEC has been described in the last 15 years, our case is the eighth. The diagnosis of gallbladder NETs is rarely made preoperatively since the presentation generally consists of non-specific symptoms including upper abdominal pain, discomfort, jaundice, weight loss. The majority of patients are identified incidentally at the time of cholecystectomy for cholelithiasis. It is not possible to differentiate preoperatively between gallbladder adenocarcinoma and gallbladder neuroendocrine carcinoma (NEC) with imaging techniques. The only curative therapeutic modality for LCNECs is a complete en bloc surgical resection, including regional lymph node clearances and hepatic lobectomy, but only in patients without multiple metastasis. LCNECs benefit from an aggressive surgical resection in combination with chemotherapy, if resectability is possible. If the tumour is non-resectable, the primary management is therefore medical and not surgical. All patients with LCNEC presented a poor prognosis with a median survival of 10 months after the initial diagnosis. Only in five patients (62.5%) a wide surgical excision was performed, while in the other cases the tumour was non-resectable or multiple liver metastases were present at diagnosis.


Subject(s)
Carcinoma, Large Cell/pathology , Carcinoma, Neuroendocrine/pathology , Cholecystectomy, Laparoscopic , Gallbladder Neoplasms/pathology , Gallstones/surgery , Incidental Findings , Adenocarcinoma/diagnosis , Aged , Carcinoma, Large Cell/surgery , Carcinoma, Neuroendocrine/surgery , Diagnosis, Differential , Female , Gallbladder Neoplasms/surgery , Hepatectomy , Humans , Liver Neoplasms/secondary , Neuroendocrine Tumors/surgery
18.
Acta Biomed ; 86(1): 92-6, 2015 Apr 27.
Article in English | MEDLINE | ID: mdl-25948034

ABSTRACT

BACKGROUND: There is no standard practice in the induction of colitis by 2,4,6-trinitrobenzene sulfonic (TNBS) acid. Usually, the repeated administration of TNBS is preferred, because it will result in a local Th1 response that has the characteristics of Crohn`s disease. MATERIALS AND METHODS: A total of 30 rats were randomized into two groups, consisting of a saline control group of ten rats and a TNBS groups of 20 rats. After the animals were anesthetized, 0.5 ml of either 0.9% saline (controls) or TNBS 50 mg/kg dissolved in 50% ethanol were instilled into the colon through a rubber catheter. The experiment was repeated weekly for four weeks, then, the rats were killed at day 40, and the distal colon removed. RESULTS: At day 40, the bowel wall was basically normal in the control group. In the TNBS group, the bowel lumen became narrow with thickened wall, and the mucosal surface presented adherent membrane with brown black, linear ulcers, proliferous lymphocyte tissue, inflammatory granulomas and submucosal neutrophil infiltration. The median score of the severity of the colonic damage was 0 in the control group, and 4,75 (range 4-5) in the TNBS group; the mean weight of the rats was 180+35 g in the TNBS group, while it was 215+25 in the control group. CONCLUSIONS: The presented experiment is a cost-effective and safe method to induce Crohn-like colonic damage using a lower dose of TNBS, thus avoiding the risk of a massive loss of rats. This model is rather suitable for the assessment of the effects of potential therapeutic agents. (www.actabiomedica.it).


Subject(s)
Colitis/chemically induced , Colitis/pathology , Disease Models, Animal , Trinitrobenzenesulfonic Acid/administration & dosage , Animals , Instillation, Drug , Male , Rats , Rats, Wistar , Reproducibility of Results
19.
Artif Organs ; 39(10): 916-21, 2015 Oct.
Article in English | MEDLINE | ID: mdl-25900063

ABSTRACT

Automatic vascular staplers for vascular anastomoses in kidney transplantation may dramatically reduce the operative time and, in particular, warm ischemia time, thus increasing the outcome of transplantation. Ten pigs underwent kidney auto-transplantation by automatic anastomotic device. Kidneys were collected by laparotomy with selective ligations at the renal hilum and perfused with cold storage solution. To overcome the shortage in length of renal hilum, a tract of the internal jugular vein was harvested to increase the length of the vessels. The anastomoses were totally performed by the use of the anastomotic device. On 10 kidney transplants, nine were successful and no complications occurred. Renal resistive indexes showed a slight increase in the immediate postoperative period returning normal at 10 days of follow-up. We demonstrated the possibility to perform renal vascular anastomoses by means of an automatic anastomotic device. This instrument developed for coronary bypass surgery by virtue of the small caliber of the vessels could be adopted on a larger scale for renal transplantation. The reduced warm ischemia time needed for anastomosis may help to achieve a better outcome for the graft and expand the pool of marginal donors in renal transplantation.


Subject(s)
Anastomosis, Surgical/methods , Kidney Transplantation/methods , Animals , Automation/methods , Disease Models, Animal , Female , Iliac Artery/anatomy & histology , Iliac Artery/surgery , Kidney/blood supply , Kidney/surgery , Renal Artery/anatomy & histology , Renal Artery/surgery , Swine
20.
Nutrients ; 7(4): 2125-33, 2015 Mar 25.
Article in English | MEDLINE | ID: mdl-25816159

ABSTRACT

Malnutrition is a common consequence of inflammatory bowel disease (IBD). Diet has an important role in the management of IBD, as it prevents and corrects malnutrition. It is well known that diet may be implicated in the aetiology of IBD and that it plays a central role in the pathogenesis of gastrointestinal-tract disease. Often oral nutrition alone is not sufficient in the management of IBD patients, especially in children or the elderly, and must be combined with oral supplementation or replaced with tube enteral nutrition. In this review, we describe several different approaches to enteral nutrition-total parenteral, oral supplementation and enteral tube feeding-in terms of results, patients compliance, risks and and benefits. We also focus on the home enteral nutrition strategy as the future goal for treating IBD while focusing on patient wellness.


Subject(s)
Enteral Nutrition/methods , Inflammatory Bowel Diseases/therapy , Malnutrition/therapy , Disease Management , Humans , Nutritional Status
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