In-hospital mortality of heparin-induced thrombocytopenia in end-stage kidney disease. A retrospective national population-based cohort study.

AIM: Heparin induced thrombocytopenia (HIT) and end stage kidney disease (ESKD) are independent conditions associated with increased mortality and morbidity, however, whether ESKD is an independent risk factor for increased mortality in HIT admissions is not well studied. Therefore, we aimed to compare in-hospital mortality in HIT admissions based on their ESKD status. METHODS: This is a retrospective cohort study of HIT hospitalizations aged 18 and older using the 2016-2019 national inpatient sample (NIS) database. RESULTS: From 2016 to 2019 we had 12 161 admissions for HIT among 28 484 087 total hospitalizations. The annual incidence rate for HIT admissions per 100 000 admissions were: 47, 46, 41.1, and 36.6, respectively (p < .001) in 2016, 2017, 2018, and 2019 respectively. Among HIT admissions, the mean age was 64.3 years, 46.8% were females, 68% were Whites and 16% were Blacks. Black patients have a significantly higher likelihood of in-hospital mortality than White patients (aOR 1.25; 95% CI: 1.06, 1.48; p = .007). Patients who did not have any insurance or self-pay had higher mortality compared to Medicare (aOR 1.64; 95% CI: 1.13, 2.38; p = .009). ESKD status was not associated with higher or lower in-hospital mortality among HIT admissions (aOR 1.002; 95% CI: 0.84, 1.19; p = .981) after adjusting for age, sex, race, and insurance status. CONCLUSION: There are no higher or lower odds of in-hospital mortality in the ESKD subgroup in HIT admissions in adults. Decreasing incidence of HIT hospitalizations was seen over the years from 2016 to 2019.

Evaluation of lithium naphthalocyanine (LiNc) microcrystals for biological EPR oximetry.

A new paramagnetic crystalline material, namely, lithium naphthalocyanine (LiNc), whose electron-paramagnetic-resonance (EPR) line width is highly sensitive to oxygen content, has been evaluated for use as oximetry probe in cells and tissues. Previously,we reported on the synthesis, structural framework,magnetic and oxygen-sensing properties of LiNc microcrystalline powder (Pandian et al, J. Mater. Chem. 19, 4138, 2009). The material exhibited a single, sharp EPR line that showed a highly linear response of its width to surrounding molecular oxygen (pO(2)) with a sensitivity of 31.2 mG/mmHg. In the present study, we evaluated the suitability of this material for in vivo oximetry in biological systems. We observed that the probe was stable in tissues for more than two months without any adverse effect on its oxygen-sensing properties. We further demonstrated that the probe can be prepared in sub-micron sizes for uptake by stem cells. Thus, the high oxygen sensitivity, biocompatibility, and long-term stability in tissues may be useful for high-resolution EPR oximetry.

Hypoxic preconditioning induces the expression of prosurvival and proangiogenic markers in mesenchymal stem cells.

Stem cells transplanted to the ischemic myocardium usually encounter massive cell death within a few days of therapy. Hypoxic preconditioning (HPC) is currently employed as a strategy to prepare stem cells for increased survival and engraftment in the heart. However, HPC of stem cells has provided varying results, supposedly due to the differences in the oxygen concentration, duration of exposure, and passage conditions. In the present study, we determined the effect of HPC on rat mesenchymal stem cells (MSCs) exposed to 0.5% oxygen concentration for 24, 48, or 72 h. We evaluated the expression of prosurvival, proangiogenic, and functional markers such as hypoxia-inducible factor-1α, VEGF, phosphorylated Akt, survivin, p21, cytochrome c, caspase-3, caspase-7, CXCR4, and c-Met. MSCs exposed to 24-h hypoxia showed reduced apoptosis on being subjected to severe hypoxic conditions. They also had significantly higher levels of prosurvival, proangiogenic, and prodifferentiation proteins when compared with longer exposure (72 h). Cells taken directly from the cryopreserved state did not respond effectively to the 24-h HPC as those that were cultured under normoxia before HPC. Cells cultured under normoxia before HPC showed decreased apoptosis, enhanced expression of connexin-43, cardiac myosin heavy chain, and CD31. The preconditioned cells were able to differentiate into the cardiovascular lineage. The results suggest that MSCs cultured under normoxia before 24-h HPC are in a state of optimal expression of prosurvival, proangiogenic, and functional proteins that may increase the survival and engraftment in the infarct heart. These results could provide further insights into optimal preparation of MSCs which would greatly influence the effectiveness of cell therapy in vivo.

Pharmacological preconditioning of mesenchymal stem cells with trimetazidine (1-[2,3,4-trimethoxybenzyl]piperazine) protects hypoxic cells against oxidative stress and enhances recovery of myocardial function in infarcted heart through Bcl-2 expression.

Stem cell transplantation is a possible therapeutic option to repair ischemic damage to the heart. However, it is faced with a number of challenges including the survival of the transplanted cells in the ischemic region. The present study was designed to use stem cells preconditioned with trimetazidine (1-[2,3,4-trimethoxybenzyl]piperazine; TMZ), a widely used anti-ischemic drug for treating angina in cardiac patients, to increase the rate of their survival after transplantation. Bone marrow-derived rat mesenchymal stem cells (MSCs) were subjected to a simulated host tissue environment by culturing them under hypoxia (2% O(2)) and using hydrogen peroxide (H(2)O(2)) to induce oxidative stress. MSCs were preconditioned with 10 microM TMZ for 6 h followed by treatment with 100 microM H(2)O(2) for 1 h and characterized for their cellular viability and metabolic activity. The preconditioned cells showed a significant protection against H(2)O(2)-induced loss of cellular viability, membrane damage, and oxygen metabolism accompanied by a significant increase in HIF-1alpha, survivin, phosphorylated Akt (pAkt), and Bcl-2 protein levels and Bcl-2 gene expression. The therapeutic efficacy of the TMZ-preconditioned MSCs was evaluated in an in vivo rat model of myocardial infarction induced by permanent ligation of left anterior descending coronary artery. A significant increase in the recovery of myocardial function and up-regulation of pAkt and Bcl-2 levels were observed in hearts transplanted with TMZ-preconditioned cells. This study clearly demonstrated the potential benefits of pharmacological preconditioning of MSCs with TMZ for stem cell therapy for repairing myocardial ischemic damage.

Measurement of oxygenation at the site of stem cell therapy in a murine model of myocardial infarction.

We have developed a noninvasive EPR (electron paramagnetic resonance) oximetry, based on a new class of oxygen-sensing nano-particulate probe (LiNc-BuO), for simultaneous monitoring of stem-cell therapy and in situ oxygenation (partial pressure of oxygen, pO2) in a mouse model of acute myocardial infarction (AMI). AMI was induced by a permanent occlusion of left-anterior-descending (LAD) coronary artery. Skeletal myoblast (SM) cells were used for therapy. The oximetry probe was implanted in the mid-ventricular region using a needle. Tissue histological studies after 3 weeks of implantation of the probe revealed significant fibrosis, which was solely due to the needle track and not due to the probe particles. The feasibility of long-term monitoring of pO2 was established in control (non-infarct) group of hearts (> 3 months; pO2 = 15.0 +/- 1.2 mmHg,). A mixture of the probe with/without SM cells (1 x 10(5)) was implanted as a single injection in the infarcted region and the myocardial tissue pO2 at the site of cell therapy was measured for 4 weeks. The pO2 was significantly higher in infarcted hearts treated with SM cells (pO2 = 3.5 +/- 0.9 mmHg) compared to untreated hearts (pO2 = 1.6 +/- 0.7 mmHg). We have demonstrated, for the first time, the feasibility of monitoring pO2 in mouse hearts after stem cell therapy.

[Hyperthyroidism in the elderly]. / L'ipertiroidismo nell'anziano.

UNLABELLED: Hyperthyroidism in elderly patients is not to be under-evaluated, since it is characterized in such age range by particular clinical and prognostic features. Based upon literature survey and their clinical experience, the authors discuss in the present paper clinical, diagnostic and therapeutic problems of hyperthyroidism in geriatric patients. MATERIAL AND METHOD: In the period between 1978-2003 out of 1804 patients surgically treated for thyroid disease (non neoplastic in 1470 pts.), 180 subjects presented hyperthyroidism (17%). 36 were in geriatric age-range (mean age 76 yr.; 29 females and 7 males). 26 presented a Multinodular Toxic Goiter (72.2%), whereas 9 patients complained of Plummer Adenoma (25%); only 1 patient showed Basedow disease (2.7%). RESULTS: As far as ASA classification, there were 7 ASA I, 27 ASA II and 2 ASA III. Compression of digestive tract and/or respiratory airway represented a surgical indication in 15 patients (41.6%). 12 (33.4%) were operated due to predominant cardiac symptoms (tachycardia, atrial fibrillation). The remaining 9 patients (25%) were treated for the concomitance of atypical symptoms of hyperthyroidism. We performed 15 total thyroidectomy, 7 "near totally", 8 sub-total, 6 hemithyroidectomy in case of Plummer adenoma. Postoperative mortality was nihil; p.o. morbidity was 5.5% for medical conditions (pneumonia) and surgery-related (1 laryngeal recurrent paralysis and 1 hypoparathyroidism) in 5.5%. Post-operative follow-up, conducted at 6 and 12 months from the operation, showed regression of hyperthyroidism and regression or improvement of all clinical symptoms complained by the patient. CONCLUSION: Surgical treatment seems to be the only immediate and definitive cure for hyperthyroidism. Geriatric age does not seem to be a surgical contraindication.

Transduodenal papillostomy as a routine procedure in managing choledocholithiasis.

The purpose of this study was to evaluate the results of transduodenal papillostomy as a routine procedure in managing choledocholithiasis in treating common bile duct (CBD) stones. From 1973 to 1978, 117 patients underwent transduodenal papillostomy for CBD lithiasis. The operation was carried out in standard manner, and all patients had preoperative telecholangioscopy, cholangiography, and biliary manometry. The mean age of patients was 53.7 years, and women predominated in a ratio of 4.5:1.0. Papillostomy was performed together with cholecystectomy for CBD stones in 111 patients (group 1). In five patients, we had to perform a choledochotomy to remove the stones after an unsuccessful papillostomy (group 2). Eight patients who previously had cholecystectomies underwent papillostomy for retained or recurrent stones (group 3), and three patients had a choledochoduodenostomy for recurrent stones after a previous cholecystectomy and papillostomy (group 4). Complications included two deaths in group 1 (1.9%). No mortality was observed in groups 2 and 4. Moreover, the overall morbidity was due to six cases of wound infection, one case of postoperative bleeding, one case of phlebitis, and three cases of cholangitis. The mean length of hospital stay was 12.9 days, considering all the groups. Lack of confidence with this procedure may explain the different results reported in the literature for transduodenal papillostomy, which on the basis of this study has been shown to ba a valid alternative to supraduodenal choledochotomy in treating CBD stones.

Intrahepatic lithiasis. Study of thirty-six cases and review of the literature.

In 2,700 operations for biliary tract stones, intrahepatic lithiasis (stones located proximal to the confluence of the main hepatic ducts) was discovered in 36 patients (1.3 per cent). The diagnosis of intrahepatic lithiasis was determined only via intraoperative chalangiography in thirty-two cases (88.9 er cent); in 23 per cent of our cases of intrahepatic lithiasis, jaundice was never observed. This confirms that intraoperative cholangiography should be performed routinely in every case of biliary lithiasis. The removal of stones was generally performed by an indirect approach (papillostomy and/or choledochotomy). In 16.7 per cent of our cases, a direct approach was indicated. It is extremely important, after removal of calculi, to assure ample bilioenteric flow. Our surgical approach was therefore based mostly on the caliber of the biliary tract. When the tract was dilated less that 2 cm (in 20 cases), choledochohepaticotomy with papillostomy was most often performed (12 cases, 60 per cent). When the dilatation was more that 2 cm (12 cases), Roux-en-Y hepaticojejunostomy was performed in all. There was no operative mortality, although the long-term follow-up results were poor in 9.6 per cent of the cases.

Retained antral mucosa in pancreaticoduodenectomy patients.

Thirteen patients with pancreaticoduodenectomy were studied. In three patients presenting with stomal ulcer or bleeding stomitis, endoscopic biopsies showed the presence of retained antral mucosa (RAM). No disease and no RAM was present in the remaining ten patients. Bombesin (BBS) infusion augmented both gastric acid and gastrin secretion in the group with RAM, whereas no change was apparent in the remaining ten patients. The BBS infusion test is useful in detecting stomal ulcer high risk pancreaticoduodenectomy patients.

Bowel stricture due to ischemic colitis: report of three cases requiring surgery.

The diagnosis of ischemic colitis is challenging and still based upon a high index of suspicion. We report here, three patients affected by ischemic colitis causing stenosis and intestinal obstruction that required surgical treatment. Results of surgery in the three cases were not fair reflecting the high mortality and morbidity rate of ischemic colitis. However, the three cases showed peculiar features allowing us to make a few speculative considerations. Better results in the treatment of ischemic colitis might be achieved by means of a prompt recognition of the initial picture and through a better control of the many associated diseases, that represent the main risk factor for the development of ischemic colitis itself and for the bad prognosis of surgical treatment.

[Intestinal obstruction caused by ischemic colitis: description of 3 surgically treated cases]. / Occlusione intestinale da colite ischemica: descrizione di 3 casi trattati chirurgicamente.

The diagnosis of ischemic colitis is challenging and still based upon a high index of suspicion. We report here, three patients affected by ischemic colitis causing stenosis and intestinal obstruction who required surgical treatment. Results of surgery in the three cases were not fair reflecting the high mortality and morbidity rate of ischemic colitis. However, the three cases showed peculiar features allowing us to make a few speculative considerations. Better results in the treatment of ischemic colitis might be achieved by means of a prompt recognition of the initial picture and through a better control of the many associated diseases, that represent the main risk factor for the development of ischemic colitis itself and for the bad prognosis of surgical treatment.

[The role of melatonin in the immediate postoperative period in elderly patients]. / Il ruolo della melatonina nell'immediato decorso postoperatorio dei pazienti anziani.

BACKGROUND: Melatonin induces sleep and modulates immune system. Aim of the paper is to show a possible relation between impaired rhythm of melatonin secretion and the onset of postoperative septic complications and insomnia in old patients undergoing surgery. METHODS: Fifty old patients, aged from 60 to 94 years, have been studied; 39.5% of the patients had neoplastic disease. Melatonin serum levels have been evaluated by ELISA technique at 12 p.m., 3 a.m. 8 a.m. immediately before operation. Postoperative clinical findings of insomnia and septic complications have been recorded. RESULTS: The melatonin serum mean values of all the patients were 16.3 pg/ml at 12 p.m., 22.4 pg/ml at 3 a.m. and 7.1 pg/ml at 8 a.m. Neoplastic patients showed the higher values of melatonin (26.696 pg/ml, 33.143 pg/ml, 9.185 pg/ml), long-lived patients (> 90 years) the lower. The melatonin secretion curve of the old patients with postoperative insomnia (19.961 pg/ml, 20.297 pg/ml, 9.378 pg/ml) or postoperative septic complications (20.695 pg/ml, 16.183 pg/ml, 6.036 pg/ml) was significantly different compared with that of other patients. The peak was advanced, lower and decreased slowly in the midnight. CONCLUSIONS: The study seems to show a possible correlation between impaired rhythm of melatonin secretion and postoperative insomnia and postoperative sepsis in old patients undergoing surgery.

[Risk indices in geriatric surgery: ASA index versus Reiss index]. / Indici di rischio in chirurgia geriatrica: indice ASA versus Indice Reiss.

The use of the Risk Index in surgery is aimed to plan surgical strategy in order to achieve a better postoperative prognosis. This is especially true in geriatric surgery where the ASA Index and, more recently, the Reiss Index are widely employed. Since the mentioned Risk Indices are calculated on the basis of different factors, in this study we compared the two Risk Indices with the aim of verifying which index offers better prognostic indications. 210 patients, aged over 70 years, undergoing surgical treatment, were investigated. The patients were grouped according to the ASA and Reiss Indices. The ASA Index showed good correlation only with postoperative mortality. The three classes of Reiss Index showed a significant correlation with the incidence of post-operative morbidity and mortality (p.o. morbidity: 7.1%, 21.5%, 30.3%; p.o. mortality; 1.7%, 9.2%, 24.2% -Chi 2 = 20.7; p < 0.001). Our results support the hypothesis that Reiss index offers better prognostic evaluation of postoperative outcome, suggesting its use in assessing postoperative prognosis in geriatric patients. In addition, our observation confirms the criticism reported of the ASA Index, merely considered as an indicator of health status regardless of surgical treatment. In conclusion, routine preoperative evaluation of the Reiss Index should be advised in geriatric patients with the aim to forecasting surgical risk in the first place, and them modifying operative strategy in order to improve postoperative results.

[Intrahepatic lithiasis. Apropos of 36 cases of "regional" intraheptic lithiasis]. / La litiasi intraepatica. A proposito di 36 casi di l.i. "nostrana".

Out of 2,700 operations for cholelithiasis and its sequelae (1960-1976), 36 cases (1.3%) of intrahepatic lithiasis (i.l.), namely proximal to the origin of the common hepatic, were observed. The prime objective of treatment namely removal of calculi, was achieved indirectly (hepatocholedochus and/or papilla) in 84% of cases, directly (hilar) in 16%. The second objective, that of ensuring optimal bilio-enteric drainage, was achieved by papillostomy or hepaticojejunostomy depending on the lumen of the bile way (respectively less or more than 2 cm.). Operative mortality was nil, while long-term results have proved poor in 9.6% of cases. The i.l. problematic is dealt with in detail on the basis of this series.

[Early laparoscopic cholecystectomy in the treatment of acute cholecystitis]. / Colecistectomia laparoscopica precoce nel trattamento della colecistite acuta.

BACKGROUND: The aim of the study was to demonstrate the importance of early laparoscopic cholecystectomy for acute cholecystitis. METHODS: From 1998 to 2000, 66 patients were submitted to laparoscopic cholecystectomy. All patients were submitted to US scans preoperatively and operated on by surgeon skilled in emergency laparoscopic operative technique. RESULTS: Only one patient (1.5%) had conversion to open cholecystectomy. There was no mortality and no bile duct or major vascular injuries. The overall operative morbidity rate was 3%. The mean postoperative hospital stay was 3.1 days. CONCLUSIONS: Author's experience and results support the validity of early laparoscopic cholecystectomy in the treatment of acute cholecystitis, since it reduces the postoperative length of hospital stay and hospital costs. Early treatment is always helpful for inflamed and oedematous tissue which favours dissection.

[Recurrent abdominal pain and "chronic appendicitis"]. / Dolore addominale ricorrente e "appendicite cronica".

BACKGROUND: Chronic appendicitis may be the cause of recurrent abdominal pain. This hypothesis is the subject of controversy. The aim is to clarify the possible existence of a chronic inflammation of the appendix by a clinical and histopathologic study. METHODS: The case history and the preoperative symptoms and serum findings of 269 patients with appendectomy have been studied. All the appendices have been histologically examined. Chronic appendicitis was diagnosed when at least two typical histological factors of chronic inflammation were present. The histological findings of the appendices have been correlated with preoperative clinical and serum findings of the patients. 14-46 months after the appendectomy, the patients have been examined. RESULTS: Histological examination revealed 187 cases (69.5%) with acute appendicitis, 44 cases (16.3%) with non disease of appendix and 38 cases (14.2%) with chronic appendicitis. Recurrent abdominal pain and normal leukocyte count were closely correlated (chi 2 = 18.3, p < 0.001; chi 2 = 21.3, p < 0.001 respectively) with diagnosis of chronic appendicitis. 81.8% of 33 patients with chronic appendicitis who underwent follow-up had relief of all the symptoms after appendectomy. CONCLUSION: Therefore, the study seems to confirm the existence of a clinico-pathological condition that can be defined as chronic appendicitis, resolvable with appendectomy.

[The use of prosthetic meshes in the surgical treatment of inguinal hernia: the costs and profits for the local health screening unit]. / Utilizzazione delle reti protesiche nel trattamento chirurgico dell'ernia inguinale: costi e guadagni per la ULSS.

BACKGROUND: Inguinal hernioplasty represents one of the most frequently performed surgical operation. The recent introduction of prosthetic mesh made Bassini operation obsolete, with more space gained by the newly developed "tension-free" and "sutureless" surgical techniques. This new approach, however, results in increased initial costs for the hospital, due to the purchase of mesh materials. On the other hand a reduction of overall expenses for a single hernia repair should be expected. In this work an attempt is made to verify this, by calculating the cost-benefit ratio of different techniques for hernia repair. METHODS: The type and amount of materials used in a standard Bassini hernia repair, Lichtenstein and Trabucco have been examined. The amount of anesthetic drugs required, the average hospital stay and time away from work were recorded too. The costs of the three operations considered, not including routine expenses (operating room, bed sheet, etc.) have been estimated. RESULTS: Lichtenstein and Trabucco repair performed in local anesthesia (L. 1.354.120, L. 1.567.120) were cheaper than Bassini (L. 2.820.950). CONCLUSIONS: Since the system of diagnosis-related group offers a fixed amount of reimbursement for hernia repair (L. 3.247.000), the extensive use of tension free and sutureless methods, offers better profit for the Hospital. Last but not least, tension free hernia repair ensures short hospital stay, less postoperative pain, good compliance and better quality of life for the patient.

["Occult" carcinoma of the thyroid: clinical, morphological, and biologic characteristics for a correct therapeutic regime]. / Il carcinoma "occulto" della tiroide: caratteristiche cliniche, morfologiche e biologiche per una corretta programmazione terapeutica.

The "occult" carcinoma of the thyroid is still a highly controversial topic. The controversies not only regard its diagnosis, treatment, natural history and, therefore, its biological potential, but also aspects of a nosological nature in that there is still no unequivocal acceptance of its originality, thus leading to discussions focused on its precise definition. On the basis of our experience and other published data, we have reached the following conclusions: a) the term "occult" carcinoma of the thyroid must be used to describe a neoplasia which does not exceed 1.5 cm in diameter, irrespective of the presence or otherwise of laterocervical adenopathy, and leaving aside the fact that it can be identified using clinical and instrumental tests; b) high-resolution echography and echo-guided FNA are fundamental instruments for a correct and early preoperative diagnosis; c) the clinical, morphological and, above all, biological (a very slowly evolving neoplasia) characteristics make the occult carcinoma of the thyroid seem to be a tumour with its own nosological identity; d) on the strength of the latter, and in particular in view of its natural history, conservative surgery (lobectomy with isthmectomy), in the differentiated forms, might play a primary role in the treatment of occult carcinoma of the thyroid in the very near future. However, at present complete thyroidectomy represents the treatment of choice even in differentiated forms, whereas lobectomy is only reserved for incidental cases of occult carcinoma discovered during the final histological test; e) lymphadenectomy is indicated in the event of lymph node involvement, not to achieve a longer survival rate but to reduce the incidence of recidivation in the form of lymph node metastases. In these cases, even the mere removal of macroscopically damaged lymph nodes is sufficient to ensure the virtual absence of recidivation on which, it is worth noting, metabolic radio-iodotherapy is efficacious in the large majority of cases.

[Subcutaneous emphysema. Complication associated with pneumoperitoneum during videolaparoscopic cholecystectomy]. / Enfisema sottocutaneo. Complicanza legata al pneumoperitoneo in corso di videolaparocolecistectomia.

Diagnostic and therapeutic laparoscopy is a safe procedure, which, however, is not without complications. The rare occurrence of subcutaneous emphysema, as a consequence of pneumoperitoneum, following laparoscopic cholecystectomy, is reported. The mechanism for the development of this complication and its management are discussed.

[Laparoscopic inguinal hernia repair "IPOM" vs "open tension free". Preliminary results of a prospective randomized study]. / Ernioplastica inguinale laparoscopica "IPOM" vs "open tensionfree." Studio prospettico randomizzato: risultati preliminari.

AIM: The authors report the preliminary results of a prospective comparison of IPOM (group A) and "open tension free" (group B) hernioplasty in 50 patients having a mono or bilateral primitive hernia. METHODS: In group A (26 patients) hernia repair was performed using "Gore-Tex DualMesh Plus biomaterial with holes Corduroy" and in group B (24 patients) using the patch and plug technique with Marlex prosthesis. RESULTS: No intraoperative complications occurred and, in group A, no conversion was necessary. Four minor complications were obser-ved in group A (10.8%): 3 seromas and 1 transient paresthesia; 5 in group B (16%): 4 hematomas and 1 wound infection (p=n.s.). In group A only 2 patients (7.6%) needed analgesics after the first 24 hours and 12 patients (50%) in group B (p<0.001). Mean resumption of normal activity was 8 days in group A and 17 days in group B (p<0.001). At a 12-month-follow-up, no recurrence was reported in both groups. CONCLUSIONS: The results of this prospective randomized study show that IPOM may be not only a feasible and effective procedure in the treatment of recurrent and bilateral hernia or when hernia repair is performed during other laparoscopic procedures, but also in particular cases of primitive hernia such as in very active young males or heavy duty workers. However it is necessary to definitely ascertain the true incidence of recurrence in non limited series and in longer follow-up and the preliminary results of this study encourage the authors to complete the randomized study.