Expression of nuclear survivin in normal skin and squamous cell carcinoma: a possible role in tumour invasion.

BACKGROUND: Survivin is detected in few adult normal cells and it is highly expressed in cancer. Nuclear survivin facilitates cell cycle entry, whereas the mitochondrial pool protects cells from apoptosis. Survivin is overexpressed in keratinocyte stem cells (KSCs) and protects them from apoptosis. METHODS: As KSCs are at the origin of squamous cell carcinoma (SCC), we evaluated survivin expression in normal and cancerous skin in vivo by immunohistochemistry and western blotting. HaCaT cells overexpressing survivin and wound-healing assay are used. Analysis of variance and Student's T-tests are used for statistical analysis. RESULTS: Survivin is localised in both the cytoplasm and nucleus of normal adult and young keratinocytes. Nuclear survivin is detected in one every 10 of 11 basal keratinocytes. When present in suprabasal cells, nuclear survivin is coexpressed with K10 but not with K15 or p75-neurotrophin receptor (p75NTR), a transit amplifying cell marker. Nuclear, but not cytoplasmic, survivin expression markedly increases in actinic keratosis and in SCC in situ, as compared with normal epidermis, and it is highest in poorly differentiated SCC. In SCC tumours, nuclear survivin-positive cells are mainly K10/p75NTR-negative and K15-positive. In poorly differentiated tumours, survivin mostly localises in the deep infiltrating areas. When overexpressed in keratinocytes, survivin increases cell migration. CONCLUSION: High survivin expression and the subcellular localisation of survivin correlate with keratinocyte differentiation and are associated with undifferentiated and more invasive SCC phenotype.

[Laparoscopic cholecystectomy in day-surgery analysis of feasibility in 166 consecutive patients]. / La colecistectomia laparoscopica in day-surgery: analisi di fattibilità su 166 pazienti consecutivi.

BACKGROUND: Day-Surgery (DS) is a widely spreading reality, both for clinical advantages to patients and organizational and economic profit to hospitals. In the last years, DS has been proposed for the treatment of a large number of diseases as inguinal and crural hernias, varicose vein, benign anorectal and thyroid pathologies. Recently, also laparoscopic cholecystectomy (LC) has been realised as DS procedure, and the initial results are promising. OBJECTIVES: To determine both the clinical feasibility of LC in DS and the factors that can predict an extension of hospital stay. MATERIALS AND METHODS: The present study is a retrospective analysis of 166 patients who underwent surgery because of symptomatic cholelithiasis in a three-year period; all patients underwent elective LC in ordinary hospital-stay. In order to identifying the patients potentially eligible for LC in DS, we carried on a selection by means of 3 consecutive stages: stage A, selection on the basis of preoperative data, stage B, selection on the basis of intraoperative factors and stage C, selection on the basis of postoperative parameters. RESULTS: Out of 166 patients, only 33 (19,8%) would have been successfully treated in DS. CONCLUSIONS: This study showed that LC in DS can be realised in strictly selected patients, on the basis of rigorous clinical and organizational criteria; furthermore, a continuous training of surgeons and nursing staff, the implementation of tele-medical facilities and the improvement of anesthesiological techniques will allow to the best results.

[The surgical needs of elderly patients in day-surgery]. / I fabbisogni di chirurgia in Day Surgery nell'anziano.

AIM: The possibility of carrying out surgery in day-surgery (DS) conditions is gradually becoming reality in most branches of surgery; in recent years, DS has also found a place in general surgery, with unquestionable advantages for the management of patients, particularly the elderly. The purpose of the present study is to investigate general surgery needs in DS conditions in elderly patients in order to analyse the clinical-administrative feasibility of DS procedure and the level of its acceptability in this group of patients. METHODS: A specially drafted questionnaire was submitted to patients admitted over a period of 18 months to the General Surgery Division of the University of L'Aquila. The details investigated in the questionnaire were: age, sex, educational qualification, working activity (independent or employee), presence in the patient's relational entourage of health workers willing to serve the patient at home, the patient's willingness to undergo the surgery for which he was admitted to the DS. The questionnaires of the over-64s were examined and the percentage of patients willing to undertake DS intervention instead of normal hospitalisation was evaluated; this willingness was then compared with the parameters sex, educational qualification, working activity and presence in the patient's relational entourage of health workers willing to assist the patient at home. RESULTS: 317 questionnaires were compiled. In 78 cases (24.6%) the patient was older than 64; the data for these patients were extrapolated. Willingness to undergo surgery in DS conditions was expressed by 23 patients (29%), whereas 55 patients (71%) stated that they were not available. In relation to sex, willingness to use the DS was 29.7% in the 37 male patients and 29.2% in the 41 females. With reference to the qualification, willingness was expressed by 71.4% of patients with a degree, 26.9% of patients with a high school leaving certificate and 15.7% of patients with a lower qualification. DS-willingness was 28% in the 75 pensioners and 66.6% in the 3 patients who worked for themselves. As regards the presence in the relational entourage of the patient of health workers ready to assist at home, DS-willingness was 23.9% in the 71 patients who did not have anyone in their relational entourage and 85.7% in the 7 patients who had such a health worker in their entourage. CONCLUSIONS: Willingness to undergo DS by elderly patients is mainly influenced by three factors: educational qualification, working activity and possibility to have home assistance from someone in the relational entourage; these parameters can be considered veritable selection criteria for DS in the elderly. The quality improvement in assistance levels and the introduction in the near future of telematic communication system could lead to an extension of DS indications to the elderly.

[Intraoperative cholangiography during laparoscopic cholecystectomy: selective or routine?]. / Colangiografia intraoperatoria in corso di colecistectomia laparoscopica: selettiva o di routine?

Since its presentation by Mirizzi in 1931, the role of intraoperative cholangiography (ICHO) has been controversial and has become an argument even more disputed with the introduction of laparoscopic cholecystectomy (VLC) in 1988. The Authors reviewed their experience to determine the most appropriate use of ICHO during VLC on the basis of a retrospective analysis of cases of selective ICHO. From December 1991 to January 2001, 597 patients, 552 elective procedure and 45 emergency procedure, were reviewed. Of 552 patients 62 presented with at least one diagnostic criterion for symptomatic gallstone disease and were treated by means of ERCP completed with endoscopic sphincterectomy (ES) when a stone of the common bile duct was found, while the remaining 490 patients underwent VLC; a total of 10 ICHO were performed, two of which in the ERCP group and 8 in the VLC group. The 45 patients treated in emergency underwent VLC; in 43 cases ICHO was performed. Of all patients, there were 2 cases of common bile duct injuries (0.33%) and in both cases ICHO was not performed. A cholangiogram added 27 min to the average duration of surgery. On the basis of both the literature and Authors' experience, it can be stated that the routine use of ICHO is not useful to reduce bile duct injuries, while it significantly increases the cost of the surgical procedure due to the increase of average operative time. The use of ICHO seems to be effective to demonstrate clinically unsuspected choledocholitiasis, although, at present, the real clinical advantage deriving from the detection of these stones is not clear. The Authors conclude that further prospective, randomized studies are necessary to assess the precise role of ICHO with regard to VLC.

[Total thyroidectomy in the surgical treatment of thyroid disease a retrospective clinical study]. / La tiroidectomia totale nel trattamento della patologia tiroidea.

BACKGROUND: Thyroid diseases constitute a group of benign and malignant affections, among which the most represented is multinodular goitre. Nowadays, an important question regards routine total thyroidectomy as the treatment of choice for all thyroid diseases. The aim of the present study is to verify if total thyroidectomy can always represent an option for modern surgery of thyroid disease. METHODS: One hundred-thirty-seven patients underwent operations for thyroid disease during an 11-year period. Fifty-three patients underwent total thyroidectomy, 27 affected by a benign pathology and 26 by a malignant one. RESULTS: Both short term and long term results have been analysed. CONCLUSIONS: In conclusion, the authors affirm that a complete resection of the gland is mandatory for the surgeon in the treatment of malignant diseases because the primary aim for oncologic surgery of the thyroid is the reduction of local recurrence and the increase of survival. As far as benign diseases are concerned, some surgeons affirm that morbility of non-total operations is lower than total thyroidectomy; anyway, the authors affirm that the most important factor to prevent morbility after total thyroidectomy is an appropriate surgical technique. In this way, both the identification of parathyroid glands and the identification preparation of recurrent nerve are considered the most valid method to prevent lesions. Another factor in favour of total thyroidectomy is represented by the risk of carcinoma on the residual tissue.

[Non-palpable lesions of the breast: retrospective clinical study]. / Lesioni non palpabili della mammella: studio clinico retrospettivo.

A non-palpable breast lesion (NPBL) is a disease of the mammary gland that cannot be detected during clinical examination but that can be visualized by mammography and/or ultrasonography, either during screening programs or sometimes in asymptomatic women. These small lesions require an adequate diagnostic-therapeutic approach to ensure correct treatment. The aim of the present study was to analyse a series of NPBLs retrospectively in order to define them nosologically and establish an adequate diagnostic-therapeutic work-up for such cases. Ninety-three patients with a total of 99 NPBLs were observed from January 1989 to December 1999. The 99 NPBLs were submitted to ultrasonography and 31 (31.3%) were also submitted to US-guided fine needle aspiration biopsy (FNAB). Later on the diagnostic-therapeutic procedure involved surgical biopsy after radiological centering and, in the case of malignant neoplastic lesions, surgical intervention and adjuvant therapy. Ultrasonography confirmed the presence of NPBL in 45 cases of the 99 detected at mammography (45.4%). Cytological examination of the 31 FNABs yielded the following results: unreliable 19.3%, suspected malignancy 42%, negative for neoplastic cytology 6.5%, positive for carcinoma 32.3%. The histological diagnosis was one of mammary carcinoma in 41 patients (43%). Among the 41 carcinomas there were 8 (19.5%) carcinomas in situ, 24 (58.5%) invasive ductal carcinomas, 8 (19.5%) invasive lobular carcinomas, and 1 (2.5%) medullary carcinoma. In the 32 (80%) patients submitted to lymphadenectomy for 33 invasive carcinomas, 6 patients (18.7%) presented positive lymph nodes (N1). The Authors conclude that NPBLs are an important clinical entity because they may be the expression of a malignant lesion; most NPBLs are diagnosed during screening programs or sometimes in asymptomatic women by means of mammography, which is the only standardised method for their identification. The poor diagnostic capability of non-invasive methods and the potential malignancy of NPBL justify the indication for surgical excisional biopsies; in cases of histological findings of malignancy it is often possible to perform conservative surgery with similar results to radical surgery in terms of survival. When NPBLs turn out to be invasive carcinomas, a concomitant lymphadenectomy is mandatory.

[Laparoscopic appendicectomy: an 8-year clinical experience]. / Appendicectomia laparoscopica: esperienza clinica di 8 anni.

BACKGROUND: For more than a century, open appendectomy through a laparotomy has been the golden standard for the surgical removal of the appendix. Nowadays, many surgeons question the utility of laparoscopic surgery to perform appendectomies because it is commonly stated that the appendix can be removed through a small surgical incision carrying a minimal surgical trauma to the patient. Although open appendectomy is really safe, on the other hand it carries a considerable risk of postoperative complications, is associated with postoperative pain and affects patient s normal activity. Laparoscopic appendectomy was first described in 1983 and, in many studies, it is described to be better than open standard technique for the treatment of appendiceal diseases. The aim of the present study is the retrospective analysis of laparoscopic appendectomies performed in a 8-year period. METHODS: The authors report on 129 patients who underwent laparoscopic appendectomy. RESULTS: Conversion rate was 0.7 %, while the laparoscopic procedure was completed in 96 female and 32 male patients. The position of the appendix was behind the cecum in 37 cases, associate diseases were found in 15 cases. Mean operative time was 51 minutes; kind of laparoscopic instrumentation affected the operation time. Histologically there were 71 (55.5 %) focal appendicitis, 22 (17.1 %) suppurative appendicitis, 11 (8.6 %) gangrenous appendicitis, 18 (14.1 %) chronic appendicitis showing signs of previous suppurative episodes and 6 (4.7 %) normal appendix. There were neither in-hospital morbidity nor mortality. Follow-up showed reduced postoperative pain, short hospital stay, fast return to complete social activity. CONCLUSIONS: The authors conclude that laparoscopic technique can be considered a safe and effective procedure for the removal of the appendix as it has the advantage of allowing faster postoperative recovery; moreover the author recommend a wider and routinely use for appendectomy.

[An intramural hematoma of the duodenum]. / L'ematoma intramurale del duodeno.

Intramural hematoma of the duodenum is a rare event which is usually associated with trauma. Because of the rarity of this problem, there has been little conformity of opinions as to diagnosis and treatment of this disease. The authors report on a case of intramural hematoma of the duodenum post-traumatically occurred in a young woman. Etiopathogenesis, diagnosis and treatment of hematoma of the duodenum are thoroughly examined in the present study. Plain abdominal radiography, oral barium study, ultrasound examination, CT and RNM are diagnostic tools in this disease. It appears that most patients with intramural hematoma of the duodenum would respond well to conservative management; surgery should be reserved for those cases that remain obstructed over seven days or have evidence of peritonitis. However surgery is mandatory in cases of uncertain diagnosis. The evacuation of hematoma is considered the most effective and safest surgical treatment.

[Adenocarcinoma of the duodenojejunal flexure. A report of 2 clinical cases and a review of the literature]. / L'adenocarcinoma della giunzione duodeno-digiunale. Presentazione di due casi clinici e revisione della letteratura.

The authors report two cases of adenocarcinoma of the duodenojejunal angle and remark the rarity of this pathology, the difficulty of making diagnosis peculiar to neoplasm of the small intestine and the difficulty of treatment peculiar to tumours of the duodenum. According to the literature the diagnosis was determined through X-ray films, after traditional endoscopy was inadequate. Surgical treatment is radical, with extensive exeresis procedures (unless the mesenteric upper vessels are infiltrated) since the prognosis of this tumours is good.

[Therapeutic strategy in symptomatic diverticular disease of the colon]. / La strategia terapeutica nella malattia diverticolare conclamata del colon.

Diverticular disease of the colon has been recorded with increasing frequency and approximately 25-30% of symptomatic patients require surgery for complications. Controversy still surrounds the best operative approach for the management of diverticular disease, particularly when it presents with complications. The three-stage operation has, for the most part, been abandoned because of its unacceptably high morbidity and mortality rates. Today it is generally believed that performing two-stage surgery is a wise decision, namely segmentary resection either without (Hartmann's procedure) or with anastomosis, protected by a covering colostomy. However, the ideal intervention is a one-stage surgical procedure (segmentary resection and primary anastomosis without a covering colostomy), but this can only be performed in selected patients. The aim of this study was to analyse the clinical course and the medical and surgical therapy retrospectively in 79 patients with symptomatic diverticular disease in order to identify the best therapeutic procedure; specifically, the severity of septic complications was evaluated using Hinchey's classification. The authors conclude that most patients with symptomatic diverticular disease require specific medical therapy. If surgical treatment is necessary (complicated diverticular disease), Hartmann's procedure is still a valid surgical option, particularly in the presence of diffuse faecal peritonitis. Colonic resection and primary anastomosis are certainly a satisfactory treatment, because of their low morbidity and mortality rates, but this surgical approach is only feasible in selected patients. Finally, it is a matter for the individual surgeon's experience to select the best surgical procedure in any particular situation, depending on age and general state, local findings and the extent of peritonitis.

[Aortic dissection: role of the general surgeon in diagnostic-therapeutic procedure]. / Dissecazione aortica: ruolo del chirurgo generale nell'iter diagnostico-terapeutico.

Aortic dissection occurs when there is a tear or separation of the aortic intima from the media; flow of blood into the intima-media space allows the tear to develop into a dissecting hematoma. Aortic dissection is a rare condition which represents an acute cardiovascular emergency for which the appropriate therapy is immediate surgical correction. Patients with aortic dissection show a heterogeneous constellation of symptoms; hence, clinical suspicion is often difficult. Only a minority of patients has "classic" symptomatology, the electrocardiogram is often misleading and the chest radiogram is almost always non-specific. In Italy, the usual "hospital routine practice" assigns the key-role in the emergency diagnostic procedure for these patients to the general surgeon. In view of the necessity of immediate cardiac surgery and the overwhelming likelihood of adverse events when surgery is delayed, techniques for diagnosis must be accurate, widely available and easily and quickly used. The present study consists of four case-reports of aortic dissection thoroughly examined and confronted with the literature. Management strategy based on emergency echocardiography is a reliable, feasible and successful technique for evaluating patients with aortic dissection. It allows a rapid accurate diagnosis with a single examination that can also be performed in the emergency room and provides information of sufficient diagnostic value to allow immediate cardiovascular surgery. CT scan and/or MRI are also valid tools for the emergency diagnosis of aortic dissection. However, a major problem still exists: the range of symptoms is sufficiently broad that a high index of "personal suspicion" of aortic dissection is required on the part of the general surgeon when he performs the role of "emergency-team leader".

Penetration of oral cefuroxime axetil into the human aqueous humor.

The purpose of this study was to investigate the penetration into the aqueous humor of cefuroxime after a single oral dose as cefuroxime axetil. Fourteen patients scheduled for cataract extraction received a single oral dose of cefuroxime axetil corresponding to 500 mg of cefuroxime 2-8 h preoperatively. Aqueous humor samples were obtained at the beginning of the cataract surgery and blood samples were drawn at the time of anesthesia. Cefuroxime levels were determined by high-performance liquid chromatography. The aqueous levels were (mean +/- SEM) 0.48 +/- 0.13 microgram/ml from 3 to 8 h after administration. Serum levels averaged 3.80 +/- 0.58 micrograms/ml. These data indicate that detectable levels of cefuroxime, exceeding the MIC of some bacterial species that frequently cause intraocular infections, may be achieved in uninflamed eyes after a low dose of cefuroxime axetil.

Argon laser trabeculoplasty: long-term results.

We analyzed the long-term success of argon laser trabeculoplasty (ALT) performed in 237 eyes of 175 patients diagnosed with primary open-angle glaucoma and followed for up to 11 years (maximum, 132 months) after treatment. The cumulative proportion of success, defined as the avoidance of glaucoma surgery or an intraocular pressure never exceeding 22 mm Hg, was calculated throughout follow up using the Kaplan-Meier life-table analysis. The success rates were: 78% at 1 year (n = 205), 71% at 3 years (n = 139), 61% at 5 years (n = 73), and 40% at 10.5 years (n = 19). Our data confirm previous reports of the high initial success rate of ALT, followed by a time-dependent decrease in its efficacy.