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Timing of baseline quality of life assessment in an international adjuvant breast cancer trial: its effect on patient self-estimation. The International Breast Cancer Study Group.

BACKGROUND: Variability in timing of baseline quality of life (QL) assessments in two ongoing International Breast Cancer Study Group (IBCSG) randomized clinical trials occurred as a result of allowing some flexibility in the timing. This retrospective report describes the QL timing in relation to surgery and start of adjuvant therapy and its effect on QL self-estimation. PATIENTS AND METHODS: Self-administered measures of baseline QL were obtained on day 1 of adjuvant therapy or as close to that date as possible from 1389 pre- and post-menopausal women with operable breast cancer. RESULTS: Fifty-four percent of QL assessments were done on day 1 of adjuvant therapy, 18% before day 1 and 28% after. An ANOVA, controlling for surgery, institution and language, showed that: for patients receiving endocrine therapy alone, QL improved as time from surgery increased, but start of adjuvant treatment had no effect, while for chemotherapy patients, appetite, physical well-being and, in pre-menopausal patients, coping were worse 1 to 5 days after the start of treatment. Chemotherapy had little effect on mood and emotional well-being. CONCLUSIONS: Timing of QL assessment in relation to diagnosis affects global adjustment measures; timing in relation to chemotherapy affects measures sensitive to toxicity. Timing is an important consideration in study conduct and data analysis.

Adult↗

Competence of the internal jugular vein valve is damaged by cannulation and catheterization of the internal jugular vein.

BACKGROUND: Experimental results suggest that the competence of the internal jugular vein (IJV) valve may be damaged when the IJV is cannulated for insertion of a central venous catheter. It has further been hypothesized that the risk of causing incompetence of the proximally located valve might be reduced by using a more distal site for venous cannulation. The present study evaluated these hypotheses in surgical patients. METHODS: Ninety-one patients without preexisting incompetence of the IJV valve were randomly assigned to undergo distal or proximal IJV cannulation (> or = 1 cm above or below the cricoid level, respectively). Color Doppler ultrasound was used to study whether new valvular incompetence was present during Valsalva maneuvers after insertion of a central venous catheter, immediately after removal of the catheter, and, in a subset of patients, several months after catheter removal, when compared with baseline findings before cannulation of the IJV. RESULTS: Incompetence of the IJV valve was frequently induced both by proximal and distal cannulation and catheterization of the IJV. Its incidence was higher after proximal than after distal cannulation (76% vs. 41%; P < 0.01) and tended to be so after removal of the catheter (47% vs. 28%; P = 0.07). Valvular incompetence persisting immediately after removal of the catheter did not recover within 8-27 months in most cases. CONCLUSIONS: Cannulation and catheterization of the IJV may cause persistent incompetence of the IJV valve. Choosing a more distal site for venous cannulation may slightly lower the risk of causing valvular incompetence but does not reliably avoid it.

Catheterization, Central Venous↗

Internal jugular vein occlusion test for rapid diagnosis of misplaced subclavian vein catheter into the internal jugular vein.

BACKGROUND: During subclavian vein catheterization, the most common misplacement of the catheter is cephalad, into the ipsilateral internal jugular vein (IJV). This can be detected by chest radiography. However, after any repositioning of the catheter, subsequent chest radiography is required. In an effort to simplify the detection of a misplaced subclavian vein catheter, the authors assessed a previously published detection method. METHODS: One hundred adult patients scheduled for subclavian vein cannulation were included in this study. After placement of subclavian vein catheter, chest radiography was performed. While the x-ray film was being processed, the authors performed an IJV occlusion test by applying external pressure on the IJV for approximately 10 s in the supraclavicular area and observed the change in central venous pressure and its waveform pattern. The observations thus obtained were compared with the position of catheter in chest radiographs, and the sensitivity and specificity of this method were evaluated using a 2 x 2 table. RESULTS: In 96 patients, subclavian vein cannulation was successfully performed. In four patients, cannulation was unsuccessful; therefore, these patients were excluded from the study. There were six misplacements of venous catheters as detected by radiography. In five (5.2%) patients, the catheter tip was located in the ipsilateral IJV, and in one (1.02%), the catheter tip was located in the contralateral subclavian vein. In the patients who had a misplaced catheter into the IJV, IJV occlusion test results were positive, with an increase of 3-5 mmHg in central venous pressure, whereas the test results were negative in patients who had normally placed catheters or misplacement of a catheter other than in the IJV. There were no false-positive or false-negative test results. CONCLUSION: The IJV occlusion test successfully detects the misplacement of subclavian vein catheter into the IJV. However, it does not detect any other misplacement. The test may allow avoidance of repeated exposure to x-rays after catheter insertion and repositioning.

Adult↗

An international, multidisciplinary approach to the management of advanced colorectal cancer. International Working Group in Colorectal Cancer.

The International Working Group in Colorectal Cancer conducted a survey (the Colorectal Cancer Care Pathway Review) in the summer of 1995 to examine medical, surgical and oncology nursing perceptions of patient management throughout Europe and the United States. The sample included 319 oncologists (surgical, medical and radiation) and 103 oncology nurses from a variety of centres in France, Germany, Italy, the United Kingdom and the United States. In response to issues identified in the Colorectal Cancer Care Pathway Review, a model for the optimal management of patients has been developed by the Working Group. The objectives of the Patient Management Model are: to define current best practice in advanced colorectal cancer; and to identify areas for ongoing research and clinical trials. Due to the multicultural nature of the Working Group, the model incorporates the differences in treatment that occur between countries. The Patient Management Model gives recommendations on treatment issues such as diagnosis, staging of disease, management strategy and therapy considerations including surgery, radiotherapy, chemotherapy, palliative supportive care, therapy management, auxiliary management and patient support. A multidisciplinary team approach to patient management is recommended to ensure optimal treatment and care. The multidisciplinary team should include all those involved in the treatment of the patient including specialists such as the oncology nurse. A summary of the recommendations of the Patient Management Model is presented here.

Colorectal Neoplasms↗

Acceptability of voluntary HIV testing by pregnant women in developing countries: an international survey. Ghent International Working Group on Mother-to-Child Transmission of HIV.

OBJECTIVE: To evaluate acceptability of voluntary HIV counselling and testing (VCT) by pregnant women in the context of clinical trials assessing interventions to reduce mother-to-child transmission (MCT) of HIV in developing countries. METHODS: During September-October 1997, 13 studies located in West (Abidjan, Bobo Dioulasso), East (Nairobi, Mombasa, Dar Es Salaam, Blantyre, Lusaka, Harare) and South Africa (Soweto, Durban), and Thailand (Bangkok) were included in a cross-sectional mailing survey about the acceptability of VCT in antenatal clinics. Acceptance rate, return rate, overall acceptability of VCT (acceptance of both pre- and post-VCT sessions) were obtained using a standardized questionnaire. RESULTS: The median overall acceptability of VCT was 69% (range, 33-95%). Overall acceptability of VCT most frequently depended on return rates because acceptance rates were generally high. Where several studies were conducted in parallel in the same city or the same country, overall acceptability rates of HIV testing were generally comparable even if the intervention programmes differed. Overall acceptability rates of VCT were high in antenatal clinics where a particular effort in implementing VCT programmes had been made. CONCLUSIONS: This international survey shows that despite many obstacles, VCT is feasible and acceptable for pregnant women aiming to reduce their risk of transmitting HIV to their children.

AIDS Serodiagnosis↗

INTERSEPT: an international, multicenter, placebo-controlled trial of monoclonal antibody to human tumor necrosis factor-alpha in patients with sepsis. International Sepsis Trial Study Group.

OBJECTIVE: To determine the safety and efficacy of BAY x 1351, a murine monoclonal antibody to recombinant human tumor necrosis factor (TNF)-alpha, in patients with sepsis. DESIGN: An international, multicenter, prospective, placebo-controlled trial in patients with sepsis, stratified into shock/nonshock groups. SETTING: Forty acute clinical care facilities in 14 countries. PATIENTS: Of the 564 patients enrolled in the study, 553 patients received study drug or placebo. INTERVENTIONS: Patients received 15 mg/kg or 3 mg/kg of BAY x 1351, or placebo, as a single intravenous infusion. MEASUREMENTS AND MAIN RESULTS: The patients were well matched for severity of illness and for risk factors known to influence the outcome of sepsis. There was no difference in 28-day mortality rates between groups (placebo group 66 [39.5%] of 167;3 mg/kg group 57 [31.5%] of 181; 15 mg/kg group 87 [42.4%] of 205). Approximately 9 months after this study had begun, an interim safety examination of NORASEPT, a North American Sepsis Trial using the same monoclonal antibody, indicated that there was no benefit to patients in the nonshock group and further enrollment of these nonshock septic patients into INTERSEPT was stopped. The analysis therefore focused on the 420 patients in shock. The primary efficacy variable was the 28-day, all-cause mortality rate: placebo group 57 (42.9%) of 133; 3-mg/kg group 51 (36.7%) of 139; and 15-mg/kg group 66 (44.6%) of 148 (not significant). Two secondary efficacy variables were identified prospectively: shock reversal and frequency of organ failures. Life-table analysis showed that in patients who survived 28 days, there was a more rapid reversal of shock in both treatment groups compared with placebo (15-mg/kg group vs. placebo group log-rank statistic p = .007, 3-mg/kg group vs. placebo group p = .01). Similarly, in patients surviving 28 days, there was a significant delay in the time to the onset of first organ failure (log rank 15 mg/kg vs. placebo p = .03, 3 mg/kg vs. placebo p = .07), and more patients in the placebo group developed at least one organ failure: 15-mg/kg group 33 (40.2%) of 82; 3-mg/kg group 39 (44.3%) of 88; and placebo group 45 (59.2%) of 76 (15 mg/kg vs. placebo p = .03, 3 mg/kg vs. placebo p = .06). No significant adverse events were associated with the monoclonal antibody treatment. CONCLUSIONS: INTERSEPT provides additional clinical data implicating TNF-alpha as an integral mediator of septic shock. The study suggested a possible role for anti-TNF antibody as adjunctive therapy, but this possibility requires confirmation by another clinical trial.

APACHE↗

Moclobemide and imipramine in chronic depression (dysthymia): an international double-blind, placebo-controlled trial. International Collaborative Study Group.

An international, multicenter, placebo-controlled study was undertaken to determine the safety and antidepressant efficacy of moclobemide, a new reversible inhibitor of monoamine oxidase A, and imipramine in the treatment of dysthymia (DSM-III-R). A total of 315 patients were enrolled and randomly assigned to an 8-week treatment in one of three groups (moclobemide, imipramine and placebo). Patients were male or female outpatients aged between 18 and 65 years meeting DSM-III-R criteria for dysthymia, primary type, with late or early onset. Of the patients in each group 85% completed the 8-week treatment period. The percentage of patients who no longer fulfilled DSM-III-R symptom criteria at treatment endpoint was significantly higher in the moclobemide (60%) and imipramine (49%) treatment groups than in the placebo group (22%). Differences to placebo were also statistically significant both for moclobemide and for imipramine on the other efficacy variables (i.e. Hamilton Rating Scale for Depression, final overall efficacy assessment, Clinical Global Impression and symptom check list self-rating). A significant superiority of moclobemide and imipramine over placebo was found in pure dysthymia and in double-depression, as well as in early and late onset subgroups. In early onset cases, moclobemide was significantly more effective than was imipramine on the Hamilton Rating Scale for Depression. Anticholinergic symptoms and sleepiness were significantly more frequent side effects on imipramine than on moclobemide or on placebo, and the investigators' final overall assessment of tolerability significantly favoured moclobemide over imipramine. This study demonstrates the efficacy of high dose moclobemide (mean dose 675 mg/day) and high dose imipramine (220 mg/day) against placebo in the treatment of dysthymia. Moclobemide was better tolerated than was imipramine.

Adolescent↗

Valaciclovir versus acyclovir in the treatment of first-episode genital herpes infection. Results of an international, multicenter, double-blind, randomized clinical trial. The Valaciclovir International Herpes Simplex Virus Study Group.

BACKGROUND AND OBJECTIVES: Valaciclovir, the L-valine ester prodrug of acyclovir, is much better absorbed than acyclovir and produces acyclovir exposures three to five times those attainable with the parent drug. GOALS: To determine whether the improved bioavailability of valaciclovir and a more convenient, less frequent dose regimen can maintain the clinical efficacy previously demonstrated for acyclovir. STUDY DESIGN: This was an international, multicenter, randomized, double-blind clinical trial comparing 10-day regimens of valaciclovir (1000 mg, twice daily) and acyclovir (200 mg, 5 times daily) in the treatment of 643 otherwise healthy adults (> or = 18 years of age) with first-episode genital herpes. Patients were evaluated clinically and lesions were staged and cultured on days 1, 2, 3, 5, 7, 10, 14, and then twice weekly until healed. Blood for herpes serology tests was obtained on days 1 and 14; hematology and chemistry toxicity screening was done on days 1 and 7. RESULTS: Valaciclovir and acyclovir did not differ significantly in efficacy with respect to duration of viral shedding (hazard ratio, 1.00; 95% confidence interval [CI], 0.84-1.18), time to healing (hazard ratio, 1.08; 95% CI, 0.92-1.27), duration of pain (hazard ratio, 1.0; 95% CI, 0.85-1.18), and time to loss of all symptoms (hazard ratio, 1.02; 95% CI, 0.85-1.22). Patients with primary genital herpes (no preexisting antibody to either herpes simplex virus type at enrollment with seroconversion at day 14) had longer times to healing and longer duration of viral shedding and pain than patients with nonprimary first genital episodes. Adverse experiences were generally infrequent and mild and were comparable in the two treatment groups. CONCLUSIONS: Twice-daily valaciclovir proved as effective and well tolerated in the treatment of first-episode genital herpes as five-times-daily acyclovir. Valaciclovir provides a useful alternative to acyclovir with the advantage of a more convenient dosing regimen and the potential for improved compliance.

Acyclovir↗

Oral white lesions with special reference to precancerous and tobacco- related lesions: conclusions of an international symposium held in Uppsala, Sweden, May 18-21 1994. International Collaborative Group on Oral White Lesions.

An international group of epidemiologists, clinicians and pathologists with a special interest in oral white lesions and their precancerous significance has reviewed earlier work on this topic and identified some of the problems associated with previous definitions, descriptions and classifications. Modifications to these definitions, descriptions and classifications have been proposed, accompanied by explanations of the reasons for identifying the need for changes to be made. Leukoplakia may be a provisional or definitive diagnosis dependent upon the circumstances of oral examination and the availability of other information. Guidelines are provided to assist in the application of the definitions of oral leukoplakia and illustrations depict the homogeneous and non-homogeneous clinical variants. Consideration is also given to the importance of a red component in a white lesion, or a lesion that is entirely red (erythroplakia). A new clinical staging procedure for oral leukoplakia is also proposed.

Erythroplasia↗

Dramatic early postnatal growth failure in children with early onset growth hormone deficiency. The International Board of the Kabi Pharmacia International Growth Study.

From the large group of patients included in the Kabi Pharmacia International Growth Study, 58 were studied who were treated with growth hormone (GH) before the age of 2 years, after diagnosis of GH deficiency (GHD). The growth parameters calculated from these infants indicate dramatic early postnatal growth failure, thus suggesting that GH could participate in early postnatal growth. The intensity of growth failure in these infants with GHD suggests that early screening on clinical grounds is possible.

Body Constitution↗

Predicting the response to recombinant human growth hormone in Turner syndrome: KIGS models. KIGS International Board. Kabi International Growth Study.

A mathematical model for predicting the growth response in patients with Turner syndrome who received growth hormone (GH) therapy was developed by analysing data from KIGS, the Pharmacia & Upjohn International Growth Database. A model for year 1 of GH therapy explained 46% of the variability of the growth response, with GH dose being the most important of the predictors of height velocity. In years 2-4 of therapy, height velocity during the previous year was the most important predictor, suggesting that an individual's initial response to GH may determine the height outcome of treatment. Additional predictors of height velocity in years 1-4 of GH therapy included age (negative), weight SDS and additional treatment with oxandrolone. The predictions in all 4 years were highly accurate, as indicated by the low error SDs. However, relatively low predictive power (R) during years 2-4 of treatment suggests the models are missing other parameters that would explain more of the variability of the growth response. These growth prediction models could help clinicians to design individualized treatment regimens, provide realistic expectations of therapy outcomes, and adjust treatment on the basis of detected differences between observed and predicted height velocities.

Body Height↗

Assessment of ribosomal large-subunit D1-D2, internal transcribed spacer 1, and internal transcribed spacer 2 regions as targets for molecular identification of medically important Aspergillus species.

Molecular approaches are now being developed to provide a more rapid and objective identification of fungi compared to traditional phenotypic methods. Ribosomal targets, especially the large-subunit RNA gene (D1-D2 region) and internal transcribed spacers 1 and 2 (ITS1 and ITS2 regions), have shown particular promise for the molecular identification of some fungi. We therefore conducted an assessment of these regions for the identification of 13 medically important Aspergillus species: Aspergillus candidus, Aspergillus (Eurotium) chevalieri, Aspergillus (Fennellia) flavipes, Aspergillus flavus, Aspergillus fumigatus, Aspergillus granulosus, Aspergillus (Emericella) nidulans, Aspergillus niger, Aspergillus restrictus, Aspergillus sydowii, Aspergillus terreus, Aspergillus ustus, and Aspergillus versicolor. The length of ribosomal regions could not be reliably used to differentiate among all Aspergillus species examined. DNA alignment and pairwise nucleotide comparisons demonstrated 91.9 to 99.6% interspecies sequence identities in the D1-D2 region, 57.4 to 98.1% in the ITS1 region, and 75.6 to 98.3% in the ITS2 region. Comparative analysis using GenBank reference data showed that 10 of the 13 species examined exhibited a < or = 1-nucleotide divergence in the D1-D2 region from closely related but different species. In contrast, only 5 of the species examined exhibited a < or = 1-nucleotide divergence from sibling species in their ITS1 or ITS2 sequences. Although the GenBank database currently lacks ITS sequence entries for some species, and major improvement in the quality and accuracy of GenBank entries is needed, current identification of medically important Aspergillus species using GenBank reference data seems more reliable using ITS query sequences than D1-D2 sequences, especially for the identification of closely related species.

Aspergillus↗

Identification of an essential region for internal initiation of translation in the aphthovirus internal ribosome entry site and implications for viral evolution.

Translation of aphthovirus RNA is initiated at an internal ribosome entry site (IRES) element, preceding the first functional AUG initiation codon. The effect of mutations at the base of domain 3 of the aphthovirus IRES on translation activity has been analyzed by site-directed mutagenesis and expression of bicistronic RNAs in transfected cells. The results have shown that the enhanced IRES activity associated with a single pyrimidine transition fixed in a persistent aphthovirus variant (E. Martínez-Salas, J. C. Sáiz, M. Dávila, G. J. Belsham, and E. Domingo, J. Virol. 67:3748-3755, 1993) is base specific. Mutations predicted to destabilize the base of domain 3 were detrimental to IRES function, but subsequent restoration of the RNA structure gave rise to fully competent IRES. In contrast, single or multiple mutations that did not affect predicted helical structures modified the relative efficiency of translation by at most 10-fold, suggesting that primary sequence also plays a role in IRES activity. A correlation between the energy of stabilization of the IRES structure and the efficiency of translation has been noted. None of the 15 mutations studied reached a level of initiation of translation comparable to that of the IRES from the persistent variant. The results indicate a critical participation of the base of domain 3 in the activity of the aphthovirus IRES, with a strong effect of secondary or higher-order structures and minor effects of primary structure.

Animals↗

Conserved structural motifs located in distal loops of aphthovirus internal ribosome entry site domain 3 are required for internal initiation of translation.

A comparison of picornavirus internal ribosome entry site (IRES) secondary structures revealed the existence of conserved motifs located on loops. We have carried out a mutational analysis to test their requirement for IRES-driven translation. The GUAA sequence, located in the aphthovirus 3A loop, did not tolerate substitutions that disrupt the GNRA motif. Interestingly, this motif was found at similar positions in all picornavirus IRESs, suggesting that it may form part of a tertiary-structure element. The RAAA tetranucleotide located in the 3B loop was conserved only in cardiovirus and aphthovirus. A mutational analysis of the RAAA motif revealed that activities of 3B loop mutants correlated with both the presence of a sequence close to CAAA at the new 3B loop and the absence of reorganization of the 3B and 3C stem-loops. In support of this conclusion, insertion of a large number of nucleotides close to the 3B loop, which was predicted to reorganize the 3B-3C stem-loop structure, led to defective IRES elements. We conclude that the aphthovirus IRES loops located at the most distal part of domain 3, which carries GNRA and RAAA motifs, are essential for IRES function.

Aphthovirus↗

A cross-kingdom internal ribosome entry site reveals a simplified mode of internal ribosome entry.

Rhopalosiphum padi virus (RhPV) is an insect virus of the Dicistroviridae family. Recently, the 579-nucleotide-long 5' untranslated region (UTR) of RhPV has been shown to contain an internal ribosome entry site (IRES) that functions efficiently in mammalian, plant, and insect in vitro translation systems. Here, the mechanism of action of the RhPV IRES has been characterized by reconstitution of mammalian 48S initiation complexes on the IRES from purified components combined with the toeprint assay. There is an absolute requirement for the initiation factors eIF2 and eIF3 and the scanning factor eIF1 to form 48S complexes on the IRES. In addition, eIF1A, eIF4F (or the C-terminal fragment of eIF4G), and eIF4A strongly stimulated the assembly of this complex, whereas eIF4B had no effect. Although the eIF4-dependent pathway is dominant in the RhPV IRES-directed cell-free translation, omission of either eIF4G or eIF4A or both still allowed the assembly of 48S complexes from purified components with approximately 23% of maximum efficiency. Deletions of up to 100 nucleotides throughout the 5'-UTR sequence produced at most a marginal effect on the IRES activity, suggesting the absence of specific binding sites for initiation factors. Only deletion of the U-rich unstructured 380-nucleotide region proximal to the initiation codon resulted in a complete loss of the IRES activity. We suggest that the single-stranded nature of the RhPV IRES accounts for its strong but less selective potential to bind key mRNA recruiting components of the translation initiation apparatus from diverse origins.

5' Untranslated Regions↗

Internal quality assurance in a clinical virology laboratory. I. Internal quality assessment.

AIMS: In April 1991 an internal quality assessment scheme (IQAS) was introduced into the virology section of the Clinical Microbiology and Public Health Laboratory, Cambridge. The IQAS was established to identify recurring technical and procedural problems, to check the adequacy of current techniques, and to calculate the frequency of errors. METHODS: Between April 1991 and December 1993, 715 anonymous clinical serum samples were submitted to the laboratory to test 3245 individual procedures of diagnostic viral serology. RESULTS: A total of 485 (14.9%) procedural and 61 (1.9%) technical discrepancies were observed, the technical discrepancies mainly being recorded in complement fixation tests. Twenty two (0.7% of total procedures) of the technical discrepancies were diagnostically significant. CONCLUSIONS: Evaluation criteria developed with the introduction of IQAS to viral serology, and technical and procedural discrepancies are assessed. As yet, IQAS has not been introduced to other sections of the diagnostic virology laboratory (virus isolation, electron microscopy, immunofluorescence, and enzyme linked immunosorbent assays for viral and chlamydial antigens).

Humans↗

Internal quality assurance in a clinical virology laboratory. II. Internal quality control.

AIMS: In April 1991 additional quality control procedures were introduced into the virology section of the Clinical Microbiology and Public Health Laboratory, Cambridge. Internal quality control (IQC) samples were gradually included in the serological assays performed in the laboratory and supplemented kit controls and standard sera. METHODS: From April 1991 to December 1993, 2421 IQC procedures were carried out with reference sera. RESULTS: The IQC samples were evaluated according to the Westgard rules. Violations were recorded in 60 of 1808 (3.3%) controls and were highest in the IQC samples of complement fixation tests (25/312 (8%) of controls submitted for complement fixation tests). CONCLUSIONS: The inclusion of IQC samples in the serological assays performed in the laboratory has highlighted batch to batch variation in commercial assays. The setting of acceptable limits for the IQC samples has increased confidence in the validity of assay results.

Complement Fixation Tests↗

Terminology. International Academy of Cytology Task Force summary. Diagnostic Cytology Towards the 21st Century: An International Expert Conference and Tutorial.

ISSUES: Differences in type, structure, quality of health care systems and availability of resources influence reporting systems. In most countries, individual systems have a long history of usage that might preclude adoption of a uniform terminology worldwide. CONSENSUS POSITION: It is desirable but unrealistic at this time to aim for a unified terminology worldwide. It should be the stated objective of the International Academy of Cytology to serve as an umbrella organization for various terminologies and enhance mutual understanding and cooperation. Translation tables of equivalent terms have been created to allow increased communication. Consensus has been achieved in defining essential elements required of any terminology system: (1) the report must be text based: numerical Papanicolaou class designations alone are inadequate; (2) an assessment of the adequacy of the sample should be included; and (3) the diagnosis must address the primary purpose of cervical cytology: to indicate the presence or absence of epithelial abnormalities. Incorporating additional elements within a terminology system may be more or less appropriate, depending on the setting in which the system is used. ONGOING ISSUES: Despite the cited problems in adopting a uniform terminology worldwide, a single system would have many advantages in terms of communication and research and may be a long-term goal worth pursuing. Countries are invited to present their individual national terminology systems and participate in an ongoing dialogue, critically evaluating the advantages and disadvantages of all systems.

Cervix Uteri↗