Prognostic role and characteristics of the indeterminate response in differentiated thyroid cancer: a systematic review

PURPOSE

The management of differentiated thyroid cancer (DTC) is actually based on a dynamic risk stratification based on classes of response to the therapy. Indeterminate response (IR) includes a heterogeneous group of patients with different characteristics, particularly different Tg and AbTg levels and/or imaging findings. The aim of systematic review (SR) is to evaluate the prognosis, diagnostic findings and other characteristics of patients in the IR class.

METHODS

A wide literature search in the Scopus, PubMed/MEDLINE and Web of Science databases was performed to find published articles on patients with DTC and IR after treatment. The quality assessment of studies was carried out using QUADAS-2 evaluation.

RESULTS

Eight articles were included in the systematic review. Six studies evaluated the prognosis and the prognostic factor in patients with IR, one study evaluated the role of 2-[18F]FDG PET-CT in the management of patients with IR and biochemical incomplete response and one study the risk factors for IR.

CONCLUSION

Patients with DTC and IR to therapy have a probability of disease relapse < 15%. Tg value could be a predictor of disease progression. The role of 2-[18F]FDG PET-CT needs to be further investigated.

Histological changes in odontogenic parakeratinized keratocysts treated with marsupialization followed by enucleation

Background

The purpose of this study was to evaluate whether marsupialization treatment induces changes in the histology of odontogenic keratocyst epithelium and to compare our experience with the literature.

Material and Methods

A retrospective revision of histological samples was performed. 5 patients with odontogenic keratocyst treated with marsupialization follow by enucleation were selected. Histologic evaluation analyzed the changes in the keratocyst epithelium after marsupialization in terms of type of keratinization, thickness of the epithelium and connective tissue, the presence of acanthosis, the presence and grade of fibrosis, the type and grade of inflammation and the presence and number of mitotic figures and daughter cysts.

Results

In our case series, a variation of para-keratinized into ortho-keratinized keratocyst was found in one case, and no significant increases were observed in the epithelium and capsule thickness, or even in the level of inflammation. However, we observed an increase in fibrosis and qualitative changes in inflammation type.

Conclusions

Minor and major histological changes were associated with reduction in cyst volume, which resulted in a simpler and less invasive cystic enucleation after marsupialization.

Key words:Keratocyst, marsupialization, enucleation, histology, histological changes.

Study on the Accuracy of Official Recording of Nosological Codes in an Italian Regional Hospital Registry

This paper describes an analysis of the quality of hospital discharge data stored in an Italian regional registry.

Although limited in scope, this analysis sheds some light on the level of quality that users can expect in official health data and describes some factors which can influence such quality. Attention focuses on the accuracy with which official administrators code Diseases of Circulatory System (DCS) in a specified health district, using the discharge diagnosis formulated on the case-notes.

Investigation of the data, a random sample of 993 medical records, shows a disturbing level of inaccuracy in the assignment of the primary diagnosis to the (DCS) group and sub-groups, especially when compared with other international experiences.

Two factors, namely the type of hospital where official administrators routinely collect the data and the age of the in-patients, are found to significantly influence such inaccuracy.

Explanations of these findings are suggested and proposals for the improved accuracy of hospital discharge data are presented.

Physicians' Perceptions of Factors Influencing the Treatment Decision-making Process for Men With Low-risk Prostate Cancer

OBJECTIVE

To assess physicians' attitudes regarding multiple factors that may influence recommendations for active surveillance (AS) vs active treatment (AT) given the central role physicians play in the treatment decision-making process.

MATERIALS AND METHODS

We conducted semistructured interviews to assess factors that physicians consider important when recommending AS vs AT, as well as physicians' perceptions of what their patients consider important in the decision. Participants included urologists (N = 11), radiation oncologists (N = 12), and primary care physicians (N = 10) from both integrated and fee-for-service healthcare settings.

RESULTS

Across the specialties, quantitative data indicated that most physicians reported that their recommendations for AS were influenced by patients' older age, willingness and ability to follow a surveillance protocol, anxiety, comorbidities, life expectancy, and treatment preferences. Qualitative findings highlighted physicians' concerns about malpractice lawsuits, given the possibility of disease progression. Additionally, most physicians noted the role of the healthcare setting, suggesting that financial incentives may be associated with AT recommendations in fee-for-service settings. Finally, most physicians reported spouse or family opposition to AS due to their own anxiety or lack of understanding of AS.

CONCLUSION

We found that patient and physician preferences, healthcare setting, and family or spouse factors influence physicians' treatment recommendations for men with low-risk PCa. These were consistent themes across physician subspecialties in both an Health Maintenance Organization and in fee-for-service settings.

Structural studies of the Fur protein from Rhizobium leguminosarum

The X-ray crystal structure of the apo-form of the Fur protein from Rhizobium leguminosarum has been solved at 2.7 A resolution. Small-angle X-ray scattering was used to give information on the solution conformation of the protein. The Fur homodimer folds into two domains. The N-terminal domain is formed from the packing of two helix-turn-helix motifs while the C-terminal domain appears primarily to stabilize the dimeric state of the protein.

[Metallic elements in tissues surrounding internal rigid fixation (IRF) devices]

BACKGROUND

Plates and other devices made by several alloys have been introduced to reach the stability of bone fractured fragments. Elements constituting alloys could be detected especially in organs, yet also in local tissues. Aim of the present study is the analysis of tissues surrounding IRF devices analyzing the morphology of released particles and studying the behavior of adjacent tissues to check metallic elements diffusion.

METHODS

Biopsies were retrieved from 18 patients, aged 20 to 76 years. The patients received IRF by plates, screws and grids from 4 months to 9 years. They were divided into five groups according to the local phlogistic degree. Ordinary light microscopy, scanning electron microscopy and X-ray microprobe analysis (EDS system) was used to perform morphological investigations and identification of metal particles and elements.

RESULTS

Metal particles or elements arising from plates, screws or grid may undergo tissular diffusion and cellular uptake. Not only Chromium, Iron or Aluminium but also Titanium may be easily released from devices and engulfed in tissues. In particular Titanium diffusion is evident in fibrous tissue surrounding IRF devices. Aluminium appears to be particularly accumulated in a persistent way in fibrous tissues and shows a characteristic embedding pattern in lamellar bone.

CONCLUSIONS

The degree of local phlogosis appears to be strictly correlated to metallosis. Chromium, Iron, Aluminium and also Titanium, even if at different degree, give rise to phlogistic effects. Metallosis and phlogosis can produce a cascade process in which they are both the cause and the effect at the same time. The abundant release of Titanium, which does not normally produce clinical phlogosis as i.e. Aluminium, should be worthy of further investigations on its cellular effects.

[Meta-analysis of the Italian studies on short-term effects of air pollution]

BACKGROUND

In recent years, much attention has been given to review reports on the early effects of air pollution on health, measured through daily series of deaths and/or hospital admissions. A number of large planned meta-analyses (in which methods for data retrieval and processing are commonly planned a priori for all participating centers) are on going both in the US and in Europe. The National Mortality, Morbidity and Air Pollution Study included data from 90 US cities, whereas APHEA (Air Pollution and Health, a European Approach) considers data from about 30 european cities. The present paper summarizes methods and findings of MISA, a meta-analysis of data from 8 Italian cities. It belongs to an ad hoc supplement of Epidemiologia & Prevenzione (Epidemiol Prev 2001; 25 (2) Suppl: 1-72), the official Journal of the Italian Association of Epidemiology, which contains a full description of the study. MISA was launched on March 2000, within the project "Statistics, Environment and Health" (GRASPA), funded by the Italian Ministry of Education. Additional support was given by the Authorities of the 8 participating cities (from North to South: Turin, Milan, Verona, Ravenna, Bologna, Florence, Rome and Palermo). DAILY HEALTH DATA: Deaths certificate and hospital admission data have been collected respectively from the Local Health Authority and regional files. The same programme for retrieval of data on selected hospital admissions for acute conditions was used in the 8 cities. Main data are summarized in Table 1. DAILY CONCENTRATION OF POLLUTANTS: Most data were obtained from Regional Environmental Protection Agencies, which are responsible for environmental monitoring since 1993. Verona, Palermo and Milan (1990-94) data were obtained from local sources. Monitors with more than 25% of missing data were excluded. Meteorological data were collected by the same monitors and completed with data from monitors situated in the suburbs or (in Milan and Bologna) in the airport. The monitors were selected by a group of experts to ensure comparability. For SO2 and NO2 daily averages of hourly measurements were used, whereas concentrations of ozone and CO were estimated as the maximum 8 hours moving average. Total suspended particulate or PM10 were measured as 24 hours deposition. All analyses used the whole range of observed values (Table 2). Daily data were considered as missing when more than 25% of hourly data were not available. Missing data in one monitor were imputed as average of data from the remaining monitors weighted by the ratio between the specific monitor's year average and the general year average of all the selected city monitors. Missing data in one day were imputed as average of four days (preceding and following day, the same day of the previous and following weeks). In the city of Florence and Palermo PM10 concentrations were available. For the other cities we applied a conversion factor from PTS to PM10 (0.6 for Turin and 0.8 for all the others) estimated through validation studies. Ozone concentrations were used only where background monitors were available (Turin, Verona, Bologna and Florence) and limited to the warm season (May through September).

METHODS

A common protocol for the city-specific analyses was defined on the basis of a structured exploratory analysis. The adopted basic model was a Generalized Additive Model for Poisson data. Effect estimates were age-adjusted (0-64, 65-74, 75+) and formal tests of interaction pollutant-age were conducted. In the first two age groups, indicator variables for seasonality were specified, and cubic splines with fixed number of degree of freedom were specified for the last age group and for all age groups for the morbidity data. Model adequacy was checked by residual analysis and inspection of the partial autocorrelation function. In a sensitivity analysis non linear pollutant effects were considered and overdispersed [table: see text] transitional models were fitted; the analysis was conducted for all lags 0-3 and some distributed lags (0-1, 1-2, 0-3); no multipollutant models were fitted. The same model was fitted to the city data. No model selection was done: Table 3 describes the steps in model building. In the meta-analysis, for each outcome, the estimates for each pollutant and for each city were combined using fixed and random effects models. Heterogeneity of effects was tested according to DerSimonian and Laird. Results were checked using a hierarchical bayesian model, which was used to investigate heterogeneity across cities in a meta-regression phase. Non informative priors were used. Posterior distributions of parameters of interest have been obtained with WinBUGS. 10,000 iterations (excluding [table: see text] the first 2000) were retained, while for the meta-regression 100,000 iterations (excluding the first 4000) were stored. To approximate the marginal posteriors only one sample out of five were used. Achieved convergence was assessed using the Gelman and Rubin approach. In the meta-regression the models specified were the following: [formula: see text] i denotes city, j calendar period (1990-1994; 1995-1999). The first model includes only period as effect modifier, while the second model other potential variables. The ui terms (which do not vary with j) represent city specific random effects.

RESULTS

For each pollutant, the meta-analysis detected a statistically significant association with mortality for natural causes. But for ozone, positive associations were commonly found for death and hospital admissions for both cardiovascular and respiratory diseases. Indeed, the only estimates whose lower 95% confidence limit bore a negative sign regarded the association between PM10 and mortality from respiratory diseases. Ozone in the warm season was positively and significantly associated with daily mortality and mortality for cardiovascular diseases whereas other estimates did not reach statistical significance and some were negative (only lag 0-1 for external comparability are reported in Table 4). Risks were highest (up to 4%) for respiratory conditions (Table 4). They were more pronounced at lag 1-2 for mortality, and at lag 0-3 for hospital admissions. Age was an effect modifier for mortality, the elderly being more susceptible. In the random effect meta-analysis, at lag 1-2, excess risks for unit increase of the pollutants at age 75+ and at age 0-64 were respectively: 4.9% and -0.4% for SO2, 1.7% and 0.6% for NO2; 2.3% and 0.2% for CO. Corresponding figures for PM10 at lag 0-1 were 1.1% and 0.2%. The effect of PM10 on mortality [table: see text] was greater during the warm season (2.8% vs 0.8%). A complete analysis is reported in the Italian text. Here we provide some details on the effects of PM10, about which the residual heterogeneity across cities was highest (Table 4). In addition, the epidemiological evidence on the hazards from this fraction of particulate matter is more controversial. Table 5 reports the excess risk estimated through the meta-analysis in 1995-99 for a 10 micrograms/m3 increase of PM10 for some outcomes. Proper prior distributions (overdispersed normal and inverse gamma) were adopted in the final bayesian analyses. The sensitivity of results to the choice of the priors were investigated (we defined proper and improper uniform, student's t), obtaining comparable results. Total natural mortality was significantly heterogeneous across cities (Q = 18.96, 5 df, p < 0.001). City-specific estimates are represented graphically in Fig. 1. As expected, the confidence (credibility) intervals are widest [table: see text] for bayesian estimates, intermediate for those obtained under a random effects model, and narrowest for those found under a fixed effects model. Nevertheless, differences in point estimates are negligible. A North-South gradient in risk is obvious. Table 6 shows, for the cities for which mortality data were available, the improvement in precision and the shrinkage of effect estimates toward the overall mean introduced by the bayesian modelling. In the meta-regression, total mortality and a deprivation score were associated with greater effects. The excess risks on hospital admission were modified by the deprivation score and by the NO2/PM10 ratio. Overall, the risk estimates were greater in the calendar period 1995-99 and there was a North-South gradient, with larger effects in cities located in Central and Southern Italy (Florence, Rome, Palermo).

CONCLUSIONS

The meta-analysis of the Italian studies on short-term effects of air pollution in 8 cities, MISA, exhibits the following features: With the exception of Naples, all greatest Italian cities were included; overall a population of 7 million was enrolled. The study protocol was accurate with regard to the selection of hospital admissions for acute conditions. Monitored data of concentration of pollutant were carefully evaluated before their inclusion in the meta-analysis. City specific analyses were carried out according to a common protocol controlling for seasonality, influenza epidemics, age and meterological variables; [table: see text] the protocol derived from a structured exploratory analysis. The meta-analysis was done using fixed and random effects models; a hierarchical bayesian model was fitted in a sensitivity analysis. The heterogeneity of effects across cities was investigated using a hierarchical bayesian model for meta-regression. While mortality data are of good quality, hospital admission data are more problematic. Since the filing criteria for the latter changed around 1995, comparability of results before and after such date is limited. Moreover, hospital admissions rely on availability of beds, the offer of which may be restricted during the warm season. Comparability of pollutant concentration estimates among cities may have been influenced by differences in monitor characteristics. (ABSTRACT TRUNCATED)

Can a cyclo-oxygenase type-2 selective tocolytic agent avoid the fetal side effects of indomethacin?

We evaluated the efficacy and safety of nimesulide (100 mg orally twice daily for > 48 hours) in a pilot series of five women (two with twin pregnancies) at 24(+6) weeks (range 21(+3) - 27(+2)) in preterm labour which was unresponsive to intravenous ritodrine. Nimesulide therapy was continued for eight days (5-16) and was associated with a prolongation of pregnancy of 27 days (6-69). Oligohydramnios occurred in all seven fetuses after three to nine days of therapy, and in the five pregnancies that continued after discontinuation of nimesulide, it resolved within four days (2-7). None of the babies manifested permanent renal damage.

Laparoscopic cholecystectomy and the Peter Pan syndrome

We report the case of a patient who experienced hemobilia a few weeks after undergoing laparoscopic cholecystectomy (LC). This condition was due to the rupture of a pseudo-aneurysm of the right hepatic artery in the common bile duct, probably caused by a clip erroneously fired during LC on the lateral right wall of the vessel. It also caused the formation of multiple liver abscesses and the onset of sepsis. This life-threatening complication led to melena, fever, epigastric pain, pancreatitis, liver dysfunction, and severe anemia, requiring urgent hospitalization and operation. In the operating theater, the fistula was closed, the liver abscesses drained, and a Kehr tube inserted. Thereafter, the patient's general condition improved, and she is now well. LC is often considered to be the gold standard for the management of symptomatic cholelithiasis. However, recent data have undermined that opinion. The apparent advantages offered by LC in the short term (less pain, speedier recovery, shorter hospital stay, and lower costs) have been overwhelmed by the complications that occur during long-term follow-up. When the late downward trend in the bile duct and the vascular injury rate are taken into consideration, the learning curve is prolonged. Therefore, LC should be regarded as the surgical equivalent of a modern Peter Pan-i.e., it is like a young adult who should make definitive steps toward becoming an adult but does not succeed in doing so. We report the case of a patient who experienced hemobilia a few weeks after undergoing laparoscopic cholecystectomy. Based on the facts in this case, we argue that the endoscopic procedure still needs to be perfected and cannot yet be considered the gold standard for selected cases of gallstone disease.

[Risk factors and neonatal outcomes in shoulder dystocia]

BACKGROUND

Shoulder dystocia (SD) is a rare obstetrical complication but linked with a high perinatal morbidity and mortality rate. SD has been associated to a series of maternal and fetal risk factors due to a multifactorial etiology. This study analyzes the incidence of SD, its morbidity and associated risk factors.

METHODS

Cases of SD occurred at the St. Gerardo Hospital (Monza) between January 1992 trough December 1997 have been retrospectively reviewed. Obstetrical and feto-neonatal data regarding cases of SD were compared to data regarding all the cephalic vaginal deliveries occurred in the same period in our Center.

RESULTS

A total of 14,157 cephalic vaginal deliveries were included in this study, of these 21 infants (0.15%) had SD. A significantly higher incidence of SD cases was found in fetal macrosomia, maternal diabetes, induction of labor by PGE2, use of obstetrical vacuum, length of first stage of labor > 4 hours in multiparas and > 8 hours in nulliparas, and length of second stage > 60 minutes, regardless of parity. A closed association was also observed between SD and birth trauma as brachial plexus injury and humerus fracture.

CONCLUSION

The incidence of SD in our population (0.15%) is below the average reported in the literature (0.37-1.1%). The well-known risk factors, whose low positive predictive value can nevertheless modify obstetrical management, are confirmed.

[Treatment of maternal hyperthyroidism and fetal goiter]

A fetal goitre is a potentially dangerous phenomenon because of mechanical obstruction and possible fetal thyroid function disorders. During pregnancy women with a history of Graves' disease under treatment with propylthiouracil (PTU) have an increased risk for fetal goitre. In this report a patient with Graves' disease diagnosed in early pregnancy and treated with PTU which resulted in a fetal goitre is described. The fetal thyroid status, investigated by percutaneous fetal umbilical cord blood sampling, was normal and the reduction of PTU dosage was sufficient to decrease goitre volume.

Amnioreduction in emergency cerclage with prolapsed membranes: comparison of two methods for reducing the membranes

To evaluate the effectiveness of amnioreduction in pregnancies requiring emergency cerclage placement, we performed a retrospective case-control study of all consecutive pregnant women with cervical dilation and effacement with prolapse of the fetal membranes in vagina between 16 and 26 weeks' gestation, who required placement of a McDonald emergency cerclage during the period January 1991-December 1997. Duration of pregnancy prolongation, rate of delivery before 32 weeks, and duration of neonatal hospital stay were compared between women in whom amniochorionic membranes were reduced at the time of cerclage placement using only intracervical Foley balloon catheter (controls; n = 7) and those who in addition underwent amnioreduction to facilitate cerclage placement (n = 9). Statistical analysis utilized Fisher's exact test and Wilcoxon rank sum test. A p value <0.05 was considered significant. There were no procedure-related ruptures of membranes. Gestational age at cerclage and rate of positive cervico-vaginal cultures were not different between the two groups. Gestation was prolonged for a median of 100 days (range 4 to 144 days) in the amnioreduction group and 10 days (2 to 133) among controls (p = 0.3). The rate of delivery before 32 weeks was significantly lower (1/7 vs. 6/8, p = 0.03) and the duration of neonatal hospital admission significantly shorter (median 3 vs. 37 days, p = 0.001) in the amnioreduction group than among controls. The amount of amniotic fluid withdrawn ranged from 220 to 340 mL. These findings suggest that amnioreduction at the time of emergency cerclage placement is associated with a lower rate of extreme prematurity and related neonatal morbidity.

Hepatitis C virus infection is associated with a higher incidence of cholestasis of pregnancy

To investigate a possible relationship between hepatitis C virus infection and cholestasis of pregnancy, we identified all cases of cholestasis of pregnancy (145/16,271) and hepatitis C virus infection (63/16,271) between January 1992 and December 1997. Serologic screening was performed universally. The rate of cholestasis of pregnancy was greater in women whose hepatitis C virus antibodies were positive rather than negative [15.9% (10/63) vs 0.8% (135/16,208), P < 0.001]. Among women with cholestasis of pregnancy, mean (standard deviation) gestational age at onset of symptoms and at delivery was significantly lower among women whose hepatitis C virus antibodies were positive compared with negative women: 28.9 (3.2) vs 34.3 (3.5) weeks, P < 0.001 and 36.3 (0.9) vs 37.0 (1.6) weeks, P = 0.03, respectively. These findings suggest that early occurrence of cholestasis of pregnancy may be an indication for serologic testing for hepatitis C virus.

Avoidable mortality in Europe 1955-1994: a plea for prevention

OBJECTIVE

To analyse trends of avoidable mortality in Europe, emphasising causes of death amenable to primary prevention through reduction of exposures, secondary prevention through early detection and treatment, and tertiary prevention through improved treatment and medical care.

DESIGN

Descriptive study of mortality from avoidable causes for the years 1955 through 1994, for ages 5-64 at time of death. Using the World Health Organisation Mortality Database, five year death rates were standardised to the world population.

SETTING

21 countries of Europe in four regions (northern, central, and southern Europe, Nordic countries).

PARTICIPANTS

All causes of deaths for men and women, aged 5-64, at time of death.

MAIN RESULTS

Between 1955-59 and 1990-94, the reduction in mortality was somewhat greater for avoidable causes than for all causes: 45.8% v 45.1% (women) and 39.3% v 32.6% among men. Reductions in mortality were greater for causes amenable to improved medical care: 77.9% among women and 76.3% among men. The smallest reduction in mortality was seen in women for causes amenable to secondary prevention (11.0%), and in men for causes amendable to primary prevention including tobacco related conditions (16.6%). From a geographical point of view, there were slight differences in trends between European regions, but overall the patterns were similar.

CONCLUSIONS

The greatest reduction of avoidable mortality in Europe from 1955-94 came from causes amenable to improved treatment and medical care for both sexes. Further reductions of avoidable mortality can be achieved through implementation of primary and secondary prevention activities, such as tobacco control, reduction of occupational exposures, and universal access to breast and cervical cancer screening programmes.

[Psychological consequences in women with symptomatic HPV infection]

OBJECTIVE

Evaluation of psychological and social aspects of women with diagnosed genital HPV-infection.

EXPERIMENTAL DESIGN

A retrospective study of 40 women with a diagnosis of HPV-genital infection has been made. INTERVENTIONS AND MEASURES: A questionnaire for gathering information on social life, sexuality and emotional relationship with the partner was submitted to the patients.

RESULTS

There is a high percentage of sexual impairments after diagnosis of HPV-infection.

CONCLUSIONS

HPV infections, as many genital pathologies, lead to problems with sexuality as well as hypochondriac fears.

[Incidence of CIN in HIV-positive women]

BACKGROUND

The aim of this study was to evaluate the incidence of CIN in HIV-seropositive women.

METHODS

A group of 23 women with a mean age of 28 years was recluted. Three of them were clinically affected, and 20 were non-AIDS HIV-seropositive. The patients underwent cervical cytology, colposcopically directed biopsy and T-cell studies. In addition, HPV using the in vitro hybridization, was investigated.

RESULTS

Eight of 23 patients (24.78%) had CIN. Patients with CIN had significantly lower CD4 cell counts and CD4/CD8 ratios than those without CIN. Patients with AIDS had higher grade lesions than those non-AIDS HIV-sero-positive.

CONCLUSIONS

The data obtained suggest that abnormal cervical pathology is common among HIV seropositive women, and so cervical colposcopy should be part of the routine management of HIV-seropositive women.

[Diagnosis and therapy of CIN in pregnant women]

BACKGROUND

CIN is the most frequent neoplasm in pregnancy. At present, in Italy, Pap test and colposcopy are not included in routine examinations in prenatal visits.

METHODS

In this study, we submitted 560 pregnant women to Pap test during prenatal visits. In case of abnormal or doubtful smears a colposcopy and target biopsy were performed.

RESULTS

Of the 560 women studied, 124 had genital bleeding and the other 436 were asymptomatic. Six cases of CIN symptomatic women and 5 cases in the asymptomatic ones. In no cases we thought necessary a therapeutic operation. We limited the therapy to a follow-up.

CONCLUSIONS

In our opinion, it is necessary to treat CIN during pregnancy.

[Authors' experience with medical therapy of herpes genitalis in pregnancy]

BACKGROUND

Neonatal risk in herpes infections is very high: in the USA it is 1:2,000, in Japan 1:15,000 and in England 1:65,000. These differences seem to be due mostly to the different risk factors associated to the mother infection. The best strategy to cure herpes infection is to examine every patient during pregnancy and to identify the high risk ones.

METHODS

In this study, 1,860 pregnant women have been submitted to a colposcopic and cytologic screening for the research of HSV.

RESULTS

HSV was found in twenty (1.07%) women. Two groups have been made: the first with 14 HSV positive women at 3-6 months of pregnancy and second with 6 HSV positive women at eight months of pregnancy. Both groups were treated with acyclovir per os. The 14 women of the first group underwent vaginal delivery. The women of the second group underwent cesarean section. Only in 1 case a neonatal infection has been observed.

[Triptorelin therapy in uterine leiomyomatosis. Study of 18 cases]

BACKGROUND

The validity of tryptoreline treatment in uterine myomatosis is demonstrated, both as alternative therapy to surgery in patients in fertile age and as preoperative therapy reducing myomatosis volume.

MATERIALS AND METHODS

In the outpatients department of Gynecologic and Obstetric Institute of the Second University of Naples, eighteen women, from 35 to 56 years old, with symptomatic uterine myomas, diagnosed by clinical examination and confirmed by pelvic ultrasonographic were treated with a delayed-release microcapsule preparation of D-Trp-6-LHRH (triptorelin) injected im, every 28 days. The duration of treatment was 6 months.

RESULTS

The results are statistically significant for 16 patients that have completed the therapy with maximal reduction in uterine and leiomyomas volumes after 3 months of treatment. Minor side effects such as hot flushes, vaginal dryness, headache, dyspareunia were frequently encountered, but they disappeared progressively after the end of therapy.

CONCLUSIONS

Four months after treatment, no significant increase in uterine and myoma volume, was noted.

Therapeutic protocol of vulvar and cervical HPV-infection

BACKGROUND

The stages of HPV (Human Papilloma Virus) infection are under the control of the immune system, which is inhibited by the virus itself. Thus, at present the treatment of condyloma acuminata is based on the use of interferon (IFN). The aim of the present study was to evaluate immune system activation and clinical response to IFN therapy. In addition, in the most serious cases, medical treatment with IFN was associated with diathermocoagulation (DTC) of persistent warts. The effectiveness of the combined therapy was also assessed.

METHODS

7 women (age range: 16-52) suffering from cervix condylomata were selected for our study. All of them were injected intramuscularly with doses of 3 million UI of IFN-alpha leucocytar every three days for six weeks together with daily applications of alpha-IFN for six weeks. The women that were still ill three months after IFN therapy, were treated with DTC. In one case, another cycle of IFN treatment was necessary.

RESULTS

Clinical response to IFN treatment was complete in 46 cases, partial in 20 cases and unsuccessful in 4 cases. After three months of medical therapy, 30 women were treated with DTC. After this therapy, in 21 cases, the warts were resolved. After 24 months the percentage of relapse was 37.9% when only IFN was used, and 4.51% when IFN was combined with DTC.

CONCLUSIONS

These data suggest that a successful protocol for the treatment of condyloma acuminata consist of IFN therapy associated with DTC when warts persisted.

Role of ultrasonography in the early diagnosis of ovarian cancer

BACKGROUND

Malign ovarian carcinomas are the main cause of death from gynaecological cancer. In fact, only in 30% of cases is it diagnosed at an early stage. In our study the possibility of an early diagnosis of the ovarian malignant neoplasia was evaluated.

METHODS

One hundred and thirty-nine women with adnexal swelling were subjected to pelvic echography. The sample was selected during routine gynaecological checkups.

RESULTS

All the cases showing a mass diameter exceeding 25 mm were classified as positive. Echotomography showed 129 cases of positive ovarian mass with an accurate diagnosis in 92.27%. Integrating the results of echography with those of radioimmunoassay an early diagnosis of ovarian cancer was achieved in 92.53 of the cases.

CONCLUSIONS

A routine pelvic examination associated with pelvic echotomography represent an effective protocol for the diagnosis of ovarian cancer at an early stage.

[Estrogen therapy in women with postmenopausal osteoporosis]

BACKGROUND

The effects of estrogen-therapy on bone mineral density and the incidence of fractures in 132 women with postmenopausal osteoporosis have been studied.

MATERIALS AND METHODS

The patients were randomly assigned to receive placebo or estrogens (0.15 or 0.3 or 0.625 mg) for 64 months. Bone mineral density of the lumbar spine was measured by dual-energy X-ray absorptiometry with the use of Hologic QR-1000 densitometers, in all women.

RESULTS

A significant increase in bone mineral density was observed in women receiving estrogens, whereas in those receiving placebo there was a decrease in bone mineral density.

A case of malignant melanoma of the vagina during pregnancy: immunological problems

BACKGROUND

A clinical case of malignant melanoma of the vagina diagnosed during late pregnancy is described. Prompt histological examination showed a malignant melanoma at an early stage. The treatment of choice for malignant melanoma is surgical exicision. At present we are trying to associate immunological and chemotherapeutic treatments with surgical ones.

CASE

A 27-year-old primipara was diagnosed with malignant melanoma at 38 weeks' gestation. The patient underwent a cesarean section. Careful evaluation of the immunological characteristics of the patient induced us to treat the melanoma with human leukocyte alpha interferon. The result was an increase in T4 cells with respect to T8 cells, with an enhancement in the ratio of CD4 to CD8.

CONCLUSION

The results suggest the immune system plays a major role in the modification and regulation of neoplasias of the genital tract.

[Folic acid and cervix dysplasia]

The localized folate deficiency, which is sometimes misdiagnosed as cervical dysplasia, because of morphological similarities between the cytologic features of megaloblastosis seen with folate deficiency and the changes associated with dysplasia, could be a component of the dysplastic process. In this study we attempted the effect of oral folic in women with cervical dysplasia. A total of 154 subjects with grade 1 or 2 CIN were randomly assigned either 10 mg of folic acid or a placebo daily for 6 months. Clinical status, human papillomavirus type 16 infection and blood folate levels were monitored at 2 month intervals. After 6-months no significant differences were observed between supplemented and unsupplemented subjects regarding dysplasia status, biopsy results, or prevalence of human papillomavirus type 16 infection. Folate deficiency the initiation of cervical dysplasia, but folic acid supplements do not alter the course of established disease.

[Drug treatment in vulvar lichen sclerosus]

This study was made in the Oncologic Gynecology's surgery of the Department of Obstetrics and Gynecology of the University of Naples. We evaluated the efficacy of local therapy with testosterone and progesterone in Vulvar Lichen Sclerosus. We treated 65 women suffering from Vulvar Lichen Sclerosus. In the group of 38 women treated with testosterone, we observed a complete response in 26 cases (68%). In the group of 27 women treated with progesterone we observed a complete response in 18 cases (66.6%). This demonstrates the efficacy of local therapy with testosterone and Progesterone in Vulvar Lichen Sclerosus. The authors believe that medical treatment with topical testosterone and progesterone represents an effective alternative to invasive methods for the care of Vulvar Lichen Sclerosus.

[Drug therapy of condylomata acuminata]

This study seeks to evaluate two candidate regimens (5-fluorouracil and interferon) as adjuvants to optimally performed laser surgery in the treatment of condylomata acuminata. Skillful laser ablation can remove any volume of human papillomavirus-associated vulvar disease but cannot prevent reactivation of the surrounding latent viral reservoir during postoperative healing. Conversely, interferon and 5-fluorouracil are relatively ineffective as primary therapies. This study involves 118 evaluable patients: 32 in the laser-CO2 group, 34 in the 5-fluorouracil group and 52 in the interferon group. At assessment of final outcome, it was found that 43 of 52 (82%) assessable patients in the adjuvant interferon arm were controlled by a single laser ablation as compared with only 17 of 34 (50%) in the 5-fluorouracil group and 13 of 32 (40%) in the laser alone group. There was no statistical difference in outcome within the 5-fluorouracil and laser only arms. Conversely, a relatively low dose of recombinant interferon, used in combination with effective surgical deleulking, can markedly reduce the risk of postoperative recurrence.

[Anencephaly: a still unresolved problem]

The anencephaly is a congenital malformation, characterized by the absence of the cerebral structures and of the skull. In this study we have considered 5 cases of anencephaly, occurred in the decade 1985-1994. All the pregnant women have been interviewed and underwent ultrasonographic evaluation. Four out of 5 pregnant women have voluntarily interrupted pregnancy. In only 1 case, having achieved woman the 40th week of pregnancy, the delivery has been spontaneous: the fetus has died after few hours. The results of this study suggest that, being the anencephaly the most commonly indications for the abortion, would be important to help the women bearers of anencephalic fetuses to consent taking the organs, using them for transplantations on children that necessitate them.

[Vulvo-vaginal HPV infection: immunological aspects]

All phases of HPV infection are under the control of the immunitary system which is probably inhibited by the virus itself. We studied 65 patients (range 22-55 year). They presented an HPV vulvovaginal infection not healed after common therapy. The aim of our study was to verify the changes occurring in the immune system during HPV vulvo-vaginal infection. Using the immunohistochemical method we evaluated the number of T4,T8 and NK lymphocytes inside the lesion. Moreover we measured the immunitary cells of the hematic compartment. Inside the lesion we noted a reduction of the immune system in 69.23% of cases, while in the hematic compartment it was reduced only in 6.15% of cases. These data strongly suggested that the evaluation of the immunitary state, before starting therapy, is important in deciding when it would be useful to associate immunostimulating substances at the common treatment of vulvo-vaginal infection.

[Association of interleukin 2 and interferon alpha in the management of cervical condylomatosis]

At present the therapy of cervical condylomatosis is based on the use of interferon because the HPV types responsable for condyloma inhibit the immunitary system. But many A. studying the effects of IFN have found that at high concentration it has an immunosuppressive action. The aim of the present study was to evaluate if interleukin-2 associated with IFN is useful in avoiding this negative effect by improving the efficacy of cervical condylomatosis therapy. We treated 25 women suffering from cervical condyloma with increasing doses of IL-2 injected intralesionally and associated with natural alpha-IFN injected intramuscularly. The duration of the whole therapy was six weeks. We evaluated the percentage of inflammatory cells in peripheral blood before and after treatment. The per-cent number of lymphocytes, eosinophils and lymphoblasts was increased by 27%, 88% and 40%, respectively. The clinical response to the therapy was total in 14 cases, partial in 9 cases and unsuccessful in 2 cases. These data suggested that combination therapy with interleukin-2 and alpha-IFN for the treatment of patients with cervix condylomatous is successful.

[Incidence of HPV and CIN in HIV positive women]

Cervical intraepithelial lesions associated with genital human papilloma virus (HPV) infection occur with increased frequency and severity among women with immunodeficiency. In this study, we considered 24 HIV-seropositive and 12 HIV-seronegative women. Each woman was interviewed and underwent a cytologic and colposcopic evaluation. Then colposcopic and cytologic findings were correlated with histologic and differences between HIV-seropositives and seronegatives were analyzed. Ten (41%) of 24 HIV-seropositive and one (9%) of 12 HIV-seronegative women had human papilloma virus infection. Among seropositives, eight (34%) had cervical intraepithelial (CIN): of those eight, 5 had CIN I, 2 CIN II and 1 CIN III. There (24%) of the 12 HIV-seronegative had CIN: two had CIN I and one CIN II. Six of the HIV-seropositive women were found to have multicentric disease (two or more sites). The objective of this study is to determine the relationship between human immunodeficiency virus (HIV) and human papilloma virus infection, sexual habits, reproducive history, and risk of cervical intraepithelial neoplasia (CIN). The results of this study suggest that cervical intraepithelial neoplasia is a common finding in HIV-infected women. Papanicolaou tests should be effective for detecting cervical disease in this population.

[Indirect morbidity indicators and social differences in the ISTAT quarterly workforce survey]

Information on the health condition job related of the population are often collected in specific studies, usually limited over time and concerned with a small part of the general population. Looking at official statistics, sources such as national health surveys (in Europe and in North America) are rich on health data, but often offer little information on job-conditions, and job history. On the other hand, one also can find official sources, mainly concerned with labour and job related topics, in which information related to the health status of the people interviewed are routinely collected. These are the Labour Force Surveys, carried out in the most of developed countries. In the Italian Labour Force Survey (RTFL) the Italian Statistical Institute (ISTAT) quarterly collects information on health-related sick absence, part-time job and unemployment. Data from RTFL of two Italian regions (Lombardy: 1985, '86, '89 and Veneto: 1985, '86) show differentials by age and job-position that are consistent with expectation, encouraging an extensive use of this source for surveillance purposes at the national and regional level.

Malignant melanoma of the vagina in pregnancy: description of a clinical case

Vaginal melanoma in pregnancy is a rare but extremely malignant tumour for which the prognosis is worsened by the fact that pregnancy increases the secretion of Melanocyte-Stimulating Hormone (MSH). The clinical case is described of a malignant vaginal melanoma in a 27 year-old woman in her 38th week of gestation, who was referred for slight vaginal bleeding. Clinical examination revealed a 3 cm pedunculate tumour on the anterior wall of the vagina. Vaginal cytology suggested a melanoma and instrumental examination failed to reveal any lymph node involvement. The vaginal tumour was removed during a caesarean section and subsequent histological examination identified it as a Breslow Stage II malignant melanoma. A 24-month follow-up showed the patient to have been completely cured.

Role of HPV-DNA typing in women with cytological diagnosis of squamous atypia

The study was performed in 293 patients (mean age 36 years old). Pap tests, colposcopy and target biopsy were performed in all patients. Results showed 100 cases of cellular atypia, 53 cases of CIN (36 CIN I, 10 CIN II, 7 CIN III) and 140 normal cases. The last phase of the study consisted in the collection of exfoliated cervical cells which were then subjected to "Enzo Pathogen DNA Probe assay" using HPV-DNA 6/11, 16/18 and 31/33/51 probes. The aim of this study was to evaluate the relationship between HPV type and neoplastic evolution. The results were not sufficiently convincing to support proposing HPV/DNA typing as the sole diagnostic method in lesions of the last section of the female genital tract.

Role of magnesium in pregnancy

The importance of magnesium in pregnancy has been emphasised by several studies. Magnesium is considered a membrane-stabilizing ion and a permeability regulator acting at an intracellular level which intervenes in the oxidative phosphorylation and oxidation reduction processes as well as in enzymatic synthesis and activity. The authors performed a double-blind study in which 15 mmol of magnesium or placebo were administered to the treatment and control groups respectively. There were more cases admitted to hospital in the control group than in that treated with magnesium. Even if there is not a large body of data which supports improved fetus development as a result of magnesium supplementation during pregnancy, the authors suggest that pregnant women with a high risk of gestosis and premature labour should receive additional magnesium.