Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 59
Filter
Add more filters

Country/Region as subject
Affiliation country
Publication year range
2.
Lymphology ; 55(4): 167-177, 2022.
Article in English | MEDLINE | ID: mdl-37553005

ABSTRACT

Breast-conserving surgery (BCS) is the standard of care for early-stage breast cancer. We retrospectively enrolled 530 patients (mean age: 62.96 ± 12.69 years) undergoing BCS between January 1, 2018, and December 31, 2019. During the COVID-19 pandemic, all patients with at least 1 year of follow-up were telephonically asked after surgery to provide clinical signs and symptoms attributable to postoperative breast cancer-related lymphedema of the breast (BCRL-B). Thirty-one (5.8%) patients reported breast edema and were visited to measure the tissue dielectric constant (TDC) and to assess the induration of the skin. There was a difference seen in treatment with lumpectomy + ALND performed more frequently in patients with (29%) than without (12%) BCRL-B. In the subgroup of patients with BCRL-B (n=31), significantly higher values of local total water were calculated in the nine patients who underwent Lump + ALND procedure (1.86 ± 0.48 vs. 1.48 ± 0.38; p = 0.046). Among patients with BCRL-B (n=31), in eight patients (25.8%) tissue induration measured with SkinFibroMeter was >0.100 N, thus suggesting tissue fibrosis. Cumulative survival probability at 1-year after surgery was 0.992. No statistical differences in 1-year survival after surgery were found for type of surgery (p = 0.890) or absence/presence of BCRL-B (p = 0.480). In univariate logistic regression, only lumpectomy + ALND surgery (p = 0.009) and any subsequent axillary lymph node removal surgery (p = 0.003) were associated with BCRL-B. Both of these variables were also found to be statistically significant in the multivariate regression model. Further prospective research is warranted to analyze potentential predictors of BCRL-B and to reduce/ prevent this complication.

3.
Int J Immunogenet ; 38(4): 303-9, 2011 Aug.
Article in English | MEDLINE | ID: mdl-21545408

ABSTRACT

Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are represented by rare but life-threatening cutaneous adverse reactions to different drugs. Previous studies have found that in a Han Chinese population from Taiwan and other Asian Countries, a strong genetic association between HLA-class I alleles (B*15:02, B*58:01) and SJS and TEN was induced by carbamazepine and allopurinol, respectively. To identify genetic markers that covered the MHC region, we carried out a case-control association enrolling 20 Caucasian patients with SJS/TEN. Our patient series included 10 cases related to paracetamol, 7 to allopurinol and 3 to different drugs (plaquenil, itraconazol, nabumetone). Healthy controls were represented by 115 Caucasian bone marrow or stem cell donors. The HLA-A*, B*, C*, DRB1*, DQB1*, DQA1* and DPB1* genotyping were determined. The frequencies of HLA-A*33:03 as well as C*03:02 and C*08:01 were significantly higher in SJS/TEN patient subgroup showing allopurinol drug-induced severe cutaneous adverse reactions (SCAR) as compared to controls (28.6% vs 0%, P=0.00002, Pc=0.0011; 28.6% vs 0%, P=0.00002, Pc=0.001; 28.6% vs 0%, P=0.00002, Pc=0.001, respectively). In the same subgroup the frequencies of B*58:01, DRB1*15:02 and DRB1*13:02 alleles, although considerably higher than in control group (42.8% vs 5.2%, P=0.003; 28.6% vs 1.7%, P=0.005; 28.6% vs 3.5%, P=0.037, respectively), appeared no more statistically different after P correction (Pc=0.248; Pc=0.29; Pc=1.00, respectively). In addition, in 10 of the 20 SJS/TEN patient subgroup with paracetamol-induced SCAR no statistically significant association with HLA alleles could be found. However, in the same SJS/TEN patient subgroup showing allopurinol drug-induced SCAR, haplotype analysis indicated that B*58:01, DRB1*13:02 and DRB1*15:02 alleles, that in a single allele analysis lost statistical significance after P correction, may still confer susceptibility, because the B*58:01-DRB1*13:02 and DRB1*15:02-DQB1*05:02 are positively associated with the disease (14.2% vs 0.43%, P= 0.00001, Pc=0.00028; 14.2% vs 0.43%, P=0.00001, Pc=0.00028, respectively). Our results show that in contrast to SCAR-related to paracetamol, where HLA alleles do not appear to be involved, HLA molecules behave as a strong risk factor for SCAR-related to allopurinol even when a limited number of patients are considered.


Subject(s)
Alleles , Histocompatibility Antigens Class II/genetics , Histocompatibility Antigens Class I/genetics , Stevens-Johnson Syndrome/genetics , Adult , Aged , Case-Control Studies , Female , Gene Frequency/genetics , Haplotypes , Humans , Italy , Male , Middle Aged , Risk Factors , Stevens-Johnson Syndrome/immunology , Young Adult
4.
Eur Rev Med Pharmacol Sci ; 25(7): 2971-2980, 2021 04.
Article in English | MEDLINE | ID: mdl-33877660

ABSTRACT

OBJECTIVE: Up to 50% of patients hospitalized for acute heart failure (AHF) show resistance to diuretics. This condition contributes to a prolonged hospital length of stay and a higher risk of death. This review aimed to investigate whether a diuretic therapeutic approach more effective than furosemide alone exists for patients with diuretic-resistant AHF. MATERIALS AND METHODS: We identified all randomized controlled trials (RCTs) evaluating diuretic therapy in patients with diuretic-resistant AHF. We searched Pubmed, BioMed Central, and Cochrane CENTRAL databases. RESULTS: Six RCTs were identified, involving a total of 845 patients. The P-score ranges from 0.6663 for furosemide to 0.2294 for the tolvaptan-furosemide. We found no significant differences in efficacy for any drug comparison. CONCLUSIONS: None of the diuretics considered in RCTs performed to date (tolvaptan, metolazone, hydrochlorothiazide, indapamide) appear to be more effective than furosemide therapy alone for the treatment of patients with diuretic-resistant AHF.


Subject(s)
Carbonic Anhydrase Inhibitors/therapeutic use , Diuretics/therapeutic use , Heart Failure/drug therapy , Acute Disease , Drug Resistance/drug effects , Humans , Randomized Controlled Trials as Topic
5.
Hernia ; 24(5): 1019-1031, 2020 10.
Article in English | MEDLINE | ID: mdl-32767180

ABSTRACT

BACKGROUND: A currently unsolved problem of open inguinal hernia repair (IHR) is chronic postoperative inguinal pain (CPIP), which affects 10-12% of patients after IHR. In the present paper, we explored the results of a newly designed partially absorbable mesh made of polypropylene and polylactic acid (HybridMesh®) for open hernia repair and its impact on postoperative safety, efficacy, comfort and pain. METHODS: A prospective multicentric pilot trial was conducted in third-referral centers across Italy (n = 5). Inclusion criteria were unilateral primary inguinal hernia in patients of both genders and BMI < 30 kg/m2. All patients were submitted to elective Lichtenstein mesh hernia repair under local anesthesia with HybridMesh. Primary outcome measure was the evaluation of Carolina Comfort Scale and modifications at 2 years after surgery and its correlation with surgical variables; secondary outcomes were postoperative early and late morbidity, recurrence and postoperative early quality of life. RESULTS: Between 2015 and 2016, 125 (5 female) patients were operated, 2-year follow-up rate was 100%. The surgical site occurrence rate was 28% without the need of procedural interventions. Twenty-four months after surgery, no case of severe CPIP was recorded and altered global CCS score was present in 16 patients (13.0%). At univariate analysis, CCS score was negatively affected by fixation with sutures (OR 3.949; 95% CI 1.334-13.300), with no effect shown on multivariate analysis. Alterations in pain and movement limitations domains of CCS were observed in 9.7% of patients, at univariate analysis; they occurred more frequently when the mesh was sutured (OR 4.437; 95% CI 1.387-17.025) and in patients suffering from SSO (ecchymosis: OR 3.269; 95% CI 1.032-10.405); however, no effect was shown on multivariate analysis. Two recurrences (1.6%) were identified within the first postoperative year. CONCLUSIONS: The results of this study support the safety, efficacy and good tolerability of HybridMesh as a device to treat primary unilateral inguinal hernia during open anterior approach. Further studies are needed to clarify its role in comparison to currently available devices at longer follow-ups.


Subject(s)
Hernia, Inguinal/surgery , Herniorrhaphy/methods , Quality of Life/psychology , Surgical Mesh/standards , Female , Humans , Male , Pilot Projects , Prospective Studies
6.
J Chromatogr A ; 1190(1-2): 120-6, 2008 May 09.
Article in English | MEDLINE | ID: mdl-18343392

ABSTRACT

Biodiesel (a mixture of fatty acid esters) is normally analyzed using gas chromatography/flame ionization detection, as specified by the ASTM D6584 and EN14105 standards. This paper proposes a binary gradient method for analyzing biodiesel mixtures using non-aqueous reverse phase HPLC with a UV detector capable of overcoming the drawbacks of the gas chromatographic technique normally used. The new analytical method was developed by means of a statistical sensitivity analysis applied to the main parameters influencing the recording, using the full factorial design method combined with the Yates algorithm and the steepest ascent optimization procedure. The present study shows the influence of the main biodiesel mixture separation analysis parameters. The resulting tool proved valid for analyzing not only biodiesel but also any traces of unreacted oil.


Subject(s)
Bioelectric Energy Sources , Chromatography, High Pressure Liquid/methods , Gasoline
7.
Transplant Proc ; 40(6): 1820-2, 2008.
Article in English | MEDLINE | ID: mdl-18675060

ABSTRACT

Evaluation of research products released during activities that have received public funds should be a mandatory practice. In this study, we evaluated the research products released during the research program "Innovative Strategies to Expand Cadaveric Donor Pool for Liver Transplantation" (SITF Project), funded by the Italian Ministry of Health. The SITF Project prefigured the participation of Italian transplantation centers with more advanced experience in the field of liver transplantation. The research products released during the SITF Project were evaluated according to Guidelines for Research Evaluation of the Committee for Evaluation of Research (CIVR) from the Italian Ministry of Education, University and Research. Thus, we considered as the research products released during the SITF Project the number of articles published in English language in peer-reviewed scientific journals by each operative unit (OU), as returned by PubMed. The articles were included on the basis of relationship with the research lines of the SITF Project and availability of the impact factor (IF) calculated by Thomson Scientific for each journal. Following these criteria, 62 research products were released during the executive phase of the SITF Project (January 1, 2004-December 31, 2005). All research products were original articles, with no reviews or letters. The articles were published in 10 different scientific journals (mean IF, 2.64+/-1.74). Spearman's rank test found a weak negative correlation between journal IF and number of published articles (r= -.2919; P= .413). Although the OU involved in the coordination of the SITF Project released a relatively high number of articles (n=8; IF, 0.923+/-0.352), several other OUs obtained better results for number of articles (9-11) and/or IF (3.071+/-2.248 or 2.959+/-1.779). In projects that benefit from public funds, the potential negative impact of coordination activities to scientific production should be adequately considered.


Subject(s)
National Health Programs/standards , Research/standards , Transplantation/standards , Hospitals/standards , Humans , Italy , Periodicals as Topic , Publishing , Research/trends
8.
Transplant Proc ; 40(6): 1844-6, 2008.
Article in English | MEDLINE | ID: mdl-18675066

ABSTRACT

In the mid-1980s, RAND Corporation and University of California Los Angeles (UCLA) developed the RAND/UCLA Appropriateness Method (RAM) to evaluate the correctness of medical and surgical procedures. In this study, the RAND/UCLA Appropriateness Method was used to evaluate the appropriateness of a dataset concerning kidney transplantation in adult and pediatric recipients for an information system funded by the Italian Ministry of Health. The original dataset was obtained using an interdisciplinary pool of regional experts (n=60). This dataset held 514 items about kidney transplantation in adult (n=268) and pediatric (n=246) recipients. The items were stratified as 3 main groups: pretransplantation items (adult, n=141; pediatric, n=122), transplantation items (adult, n=49; pediatric, n=45), and early posttransplantation and follow-up items (adult, n=78; pediatric, n=79). In the second round, the dataset was subjected to an extraregional panel of independent experts (n=9) to assess each item using a score ranging from 1 to 9 based on increasing appropriateness. The expert-opinion process returned for adult and pediatric kidney recipient items whole mean scores of 8.52+/-0.32 and 8.65+/-0.32, respectively. Overall agreement, uncertainty, and disagreement between experts about item appropriateness concerning adult kidney recipients were 94.6%, 5.4%, and 0%, respectively. For pediatric kidney recipients, overall agreement, uncertainty, and disagreement between experts about item appropriateness were 96.9%, 2.35%, and 0.07%, respectively. This study supported the use of a structured expert-opinion process as an effective strategy to evaluate the appropriateness of large datasets for kidney transplantation in both adult and pediatric recipients.


Subject(s)
Information Systems , Kidney Transplantation , Patient Education as Topic , Adult , Child , Humans , Italy , Liver Transplantation/immunology , Los Angeles , Universities
9.
Transplant Proc ; 40(6): 2021-3, 2008.
Article in English | MEDLINE | ID: mdl-18675119

ABSTRACT

With the aim to evaluate the correctness of medical and surgical procedures, RAND Corporation and University of California Los Angeles (UCLA) developed the RAND/UCLA Appropriateness Method (RAM). In this study, the RAM was applied to evaluate the appropriateness of a dataset concerning kidney/pancreas transplantation in adult recipients for an information system funded by the Italian Ministry of Health. The original dataset was obtained using an interdisciplinary pool of experts (n=60) involved in kidney/pancreas transplantation activity in the Liguria Region. This dataset held 291 items, stratified as pretransplantation items (n=158), transplantation items (n=49), and early posttransplantation and follow-up items (n=84). In the second round, the dataset was subjected to an extraregional panel of independent experts (n=9) to assess each item using a score ranging from 1 to 9 based on increasing appropriateness. The expert-opinion process returned a whole mean score of 8.47+/-0.43 (95% confidence interval [CI] 8.30-8.63). Overall agreement, uncertainty, and disagreement between experts about item appropriateness were 98.5%, 1.49%, and 0%, respectively. Agreement/uncertainty for pretransplantation, transplantation, and posttransplantation items were 99.87%/0.12%, 100%/0%, and 96.37%/3.62%, respectively. This study supported the utility of a structured expert-opinion process as an effective strategy to evaluate the appropriateness of large datasets for kidney/pancreas transplantation in adult recipients.


Subject(s)
Information Systems , Kidney Transplantation/physiology , Pancreas Transplantation/physiology , Adult , California , Clinical Protocols , Cluster Analysis , Humans , Los Angeles , Preoperative Care , Reproducibility of Results , Software , Treatment Outcome , Universities
10.
Transplant Proc ; 40(6): 1903-5, 2008.
Article in English | MEDLINE | ID: mdl-18675084

ABSTRACT

Since February 2002, the United Network for Organ Sharing (UNOS) proposed to adopt a modified version of the Model for End-Stage Liver Disease (MELD) to assign priority on the waiting list for orthotopic liver transplantation (OLT). In this study, we evaluated the impact of MELD score on liver allocation in a single center series of 198 liver recipients (mean age of patients, 52.21+/-8.92 years), considering the relationship between clinical urgency derived from MELD score (overall MELD, 18.7+/-6.83; MELD <15 in 69 patients, MELD >or=15 in 129 patients) and geographical distribution of cadaveric donors (inside/outside Liguria Region, 125/73). The waiting time for OLT was 230+/-248 days, whereas the 3-month and 1-year patient survivals were 87.37% and 79.79%, respectively. No difference was observed for MELD score retrospectively calculated for patients who underwent OLT before February 2002 (n=71) compared with MELD score calculated for patients who received a liver thereafter (18.26+/-6.68 vs 18.94+/-6.92; P= .504). No significant difference was found in waiting time before and after adoption of MELD score (213+/-183 vs 238+/-278 days; P= .500), or by stratifying patients for MELD <15/>or=15 (225+/-234 vs 232+/-256 days; P= .851). Using the geographical distribution of donors as a grouping variable (outside vs inside Liguria Region), no significance occurred for MELD score (19.68+/-7.42 vs 18.17+/-6.42; P= .135) or waiting time (211+/-226 vs 242+/-261 days; P= .394). In our series, more OLTs were performed among sicker patients and no differences were found in the management of livers procured from cadaveric donors outside or inside Liguria Region. However, further efforts are needed to reduce the waiting time among patients with higher MELD scores.


Subject(s)
Liver Failure/surgery , Liver Transplantation/statistics & numerical data , Tissue Donors/statistics & numerical data , Adult , Cadaver , Follow-Up Studies , Humans , Liver Failure/classification , Liver Transplantation/methods , Liver Transplantation/mortality , Middle Aged , Resource Allocation , Retrospective Studies , Severity of Illness Index , Survival Analysis , Time Factors , Waiting Lists
11.
Transplant Proc ; 40(6): 1950-2, 2008.
Article in English | MEDLINE | ID: mdl-18675098

ABSTRACT

Sirolimus (SRL) is an mTOR inhibitor that has been shown, in contrast to calcineurin inhibitors (CNI), to inhibit cancers in experimental models. Since February 2005, we introduced SRL in liver transplant patients in group a, in whom the primary disease was hepatocellular carcinoma (HCC) associated with hepatitis B virus (HBV), hepatitis C virus (HCV), alcoholic or autoimmune liver cirrhosis, and group b, HCC-negative patients who developed posttransplantation cancers de novo. Of 18 patients in group a, 11 received SRL ab initio (subgroup a1), starting for 10 patients at 66.1+/-29.2 days after surgical healing and after 10 days in 1 case; the remaining 7 patients (subgroup a2) received SRL at 31.2+/-24.2 months. Three patients in group b, included 1 with Kaposi's sarcoma, 1 with bladder cancer, and 1 with thyroid cancer. In this group, SRL was introduced at 80.8+/-40.4 months. In all patients but one, who received a single 5 mg loading dose, SRL was started at 2 mg/d and adjusted to 6 to 8 ng/mL blood levels. CNI drugs, present as primary therapy, were gradually tapered to low levels and eventually stopped. The following observations were drawn from this initial experience: (1) 4/21 (19.0%) patients had to discontinue SRL because of early and late side effects: thrombocytopenia (n=2) and headache with leukopenia and leg edema associated with knee joint arthralgia (n=2); (2) 14 patients (11 in group a and 3 in group b) are still on SRL monotherapy; (3) 1 HCC recurrence and 1 de novo pancreatic adenocarcinoma were observed at 14 and 16 months, respectively (at the time of transplantation, both patients were beyond the MIlan HCC criteria), and (4) 1 patient, from subgroup a1, died after 99 days due to pneumonitis and possible relation to SRL lung toxicity. In conclusion, SRL appeared to be an effective immunosuppressant that could be used as monotherapy in liver transplant patients. Any conclusion on SRL anticancer effects can only come from randomized large studies after long follow-up.


Subject(s)
Liver Transplantation/immunology , Sirolimus/therapeutic use , Anemia/epidemiology , Carcinoma, Hepatocellular/surgery , Carcinoma, Hepatocellular/virology , Hepatitis B/complications , Hepatitis C/complications , Humans , Hypercholesterolemia/epidemiology , Hypertriglyceridemia/epidemiology , Immunosuppressive Agents/adverse effects , Immunosuppressive Agents/therapeutic use , Liver Neoplasms/surgery , Liver Neoplasms/virology , Retrospective Studies , Sirolimus/adverse effects , Treatment Outcome
12.
Transplant Proc ; 40(6): 2065-6, 2008.
Article in English | MEDLINE | ID: mdl-18675131

ABSTRACT

An unusual case of early double kidney transplant dysfunction due to abdominal compartment syndrome is herein reported. A 62-year-old woman on peritoneal dialysis underwent dual kidney transplantation. The grafts were positioned extraperitoneally in both iliac possae using standard techniques. Surgical procedures and immediate postoperative period were uneventful. The urine output was immediate and the creatinine decreased, but in a few days she developed severe ascites with reduced urine output, increased creatinine, and progressive changes on Doppler ultrasound. The patient underwent paracentesis: the kidney function recovered as well as the Doppler ultrasound. Kidney biopsy was negative for rejection or renal pathology. Graft dysfunction was related to the presence of ascites. A catheter inserted in the abdomen measured intra-abdominal pressure (IAP) of 14 mm Hg. IAP correlated with renal function showing that IAP probably explained renal flow modifications.


Subject(s)
Compartment Syndromes/physiopathology , Glomerulonephritis, Membranoproliferative/surgery , Kidney Transplantation/adverse effects , Postoperative Complications/physiopathology , Compartment Syndromes/surgery , Female , Glomerulonephritis, Membranoproliferative/therapy , Humans , Kidney Transplantation/methods , Middle Aged , Peritoneal Dialysis/adverse effects , Portasystemic Shunt, Transjugular Intrahepatic , Treatment Outcome
13.
Transplant Proc ; 39(6): 1813-9, 2007.
Article in English | MEDLINE | ID: mdl-17692620

ABSTRACT

Artificial neural network, a computer-based technology that uses nonlinear statistics to recognize the relationship between input variables and an output variable, has been previously applied to outcome prediction in adult kidney recipients. In this study, we evaluated the effectiveness of a neural network model to predict a delayed decrease of serum creatinine in pediatric kidney recipients. The neural network was constructed with a training set of pediatric kidney recipients (n = 107) by using 20 input variables and assuming for the output variable, the time after 3 days to reach a serum creatinine level 50% below that before kidney transplantation. In the final model, the following input variables showing higher predictive values were retained: serum creatinine on day 1 post transplant, urine volume in the first 24 hours, diagnostic category, pretransplant dialysis mode, patient sex, donor sex, body weight on day 1 posttransplant, and patient age. The model was validated in a second set of patients (n = 41) by blinding the network for the output variable. The overall accuracies of the neural network for the training set, the validation set, and the whole patient cohort were 89.1%, 76.92%, and 87.14%, respectively. A comparative logistic regression analysis revealed only serum creatinine on day 1 posttransplant to be an independent predictor for the output variable (overall accuracy: 79.05%). The neural network showed sensitivity and specificity for the whole patient cohort to be 0.875 and 0.87, respectively, whereas using logistic regression sensitivity and specificity yields 0.37 and 0.94, respectively. This study proposes a neural network model that seemed to predict a delayed decrease in serum creatinine among pediatric kidney recipients. The availability of the source code may allow development of stand-alone neural networks to validate our model in prospective studies.


Subject(s)
Creatinine/blood , Kidney Transplantation/physiology , Neural Networks, Computer , Adolescent , Adult , Biomarkers/blood , Blood Transfusion , Body Size , Child , Humans , Kidney Failure, Chronic/surgery , Kidney Failure, Chronic/therapy , Predictive Value of Tests , Renal Replacement Therapy , Retrospective Studies
14.
Transplant Proc ; 39(6): 1918-20, 2007.
Article in English | MEDLINE | ID: mdl-17692652

ABSTRACT

A Bayesian simulation model has been applied to a database developed for split liver transplantation on two adult recipients (SLT A/A) in the context of a macroregional project funded by the Italian Ministry of Health. The model was entered within Bayesian inference Using Gibbs Sampling (WinBUGS), a free software for Bayesian analysis of complex statistical models using Markov chain Monte Carlo techniques developed by the MRC Biostatistics Unit Cambridge jointly with the Imperial College School of Medicine at St Mary's, London. The model was built by using data entry performed from January 1, 2005 to August 5, 2005. In that period, 20 potential donors suitable for the SLT A/A procedure were entered into the database. We only selected the continuous and dichotomous donor-related variables (DRV, n = 62) for which almost one data entry procedure. The model assumed that a database user learned during data entry procedures for each donor, and that the probability of a successful input may depend on the number of previous errors and corrections. After binary transformation of the DRV (value 0 for each input record, value 1 for each no input record), we calculated an overall value of 0.28 +/- 0.27 (median: 0.3; 95% confidence interval: from 0.18 to 0.629). The transformed DRV were entered within the WinBUGS environment after model specification, assuming as success (y = 1) each procedure of input record, and as failure (y = 0) each procedure of no input record. A unequivocal convergence was obtained after 10,000 iterations, and a simulation run was launched for a further 10,000 updates. We obtained a negligible Monte Carlo error and a fine profile in the kernel density plot. This study supported the application of simulation models to databases concerning liver transplantation as a useful strategy to identify a critical state in the data entry process.


Subject(s)
Computer Simulation , Databases, Factual , Hepatectomy/methods , Liver Transplantation/methods , Adult , Bayes Theorem , Health Services , Humans , Italy , Tissue and Organ Harvesting/methods , Treatment Outcome
15.
Transplant Proc ; 39(6): 1921-2, 2007.
Article in English | MEDLINE | ID: mdl-17692653

ABSTRACT

In the context of the national research program "Innovative Strategies to Expand Cadaveric Donor Pool for Liver Transplantation" (SITF project), funded by the Italian Ministry of Health, an experimental and multicentric Web-based information system was developed to automate theoretical matching between a potential donor and two adult recipients for in situ split liver transplantation (SLT A/A). Data entry in the SITF database was performed in addition to activities formally required for patient and donor management by national legislation and guidelines. Data entry carried out within the SITF database from January 1, 2005 to August 8, 2005 was processed by stratifying original variables as donor- and patient-related. Only records required for donor-recipients matching had a mandatory data entry. The donor subset showed data entry procedures in 62 variables for 20 potential donors, whereas in the patient subset, we found 28 variables for 100 potential liver recipients. In the donor subset, 1004 records were filled, for a raw completeness of 77.08%. After adjustment for appropriateness, there were 935 remaining records with an adjusted completeness of 76.64% (P = .823). In the patient subset, 2653 records were filled, for a raw completeness of 98.69%. No difference in patient subset records was found after rechecking for appropriateness. A significant difference occurred for adjusted completeness between the donor versus the patient subsets (P < .0001). The results of this study suggested that only the presence of mandatory donor records may produce a consistent database suitable for SLT A/A.


Subject(s)
Hepatectomy/methods , Liver Transplantation/physiology , Multicenter Studies as Topic , Tissue and Organ Harvesting/methods , Adult , Cadaver , Humans , Italy , Medical Records , Tissue Donors/supply & distribution
16.
Transplant Proc ; 39(6): 1927-9, 2007.
Article in English | MEDLINE | ID: mdl-17692655

ABSTRACT

The Delphi Method (DM) is the most frequently used technique to acquire structured expert-opinion elicitation (EOE). It has been increasingly applied to construct guidelines in medicine and to evaluate the appropriateness of clinical procedures. In this study, the RAND/UCLA appropriateness method was used as a structured EOE process to evaluate the appropriateness of a dataset concerning liver transplantation in adult and pediatric recipients for an information system funded by the Italian Ministry of Health. The original dataset was obtained using an interdisciplinary pool of regional experts (n = 60). This dataset held 280 items stratified into three groups: I. pretransplant items (n = 123); II. transplant items (n = 65); III. early posttransplant and follow-up items (n = 92). In the second DM round, the dataset was subjected to an extraregional panel of independent experts (n = 9) to assess a score ranging from 1 to 9 on each item based on increasing appropriateness, according to the RAND/UCLA Appropriateness Method. Overall agreement, uncertainty, and disagreement between experts was 95.89%, 3.12%, and 0.99%, respectively. For each group, agreement-uncertainty-disagreement were 99.35%/0.65%/0% (group I), 91.53%/5.30%/3.17% (group II), and 96.87%/3.13%/0% (group III), respectively. This study supported the use of a structured EOE process to evaluate the appropriateness of a large dataset for liver transplantation activity.


Subject(s)
Delphi Technique , Liver Transplantation/statistics & numerical data , Surveys and Questionnaires , Adult , Child , Humans , Italy
17.
Transplant Proc ; 39(6): 1923-6, 2007.
Article in English | MEDLINE | ID: mdl-17692654

ABSTRACT

BACKGROUND: Split liver transplantation (SLT) has become a crucial option to maximize the liver pool, while organ procurement organizations (OPOs) usually allocate whole livers to single centers. In 2003, Italian Ministry of Health funded the Innovative Strategies to Expand Cadaveric Donor Pool for Liver Transplantation project with the goal to establish sharing criteria for SLT for two adults (SLT A/A), involving Italian transplantation centers, the North Italy Transplant OPO, and the Italian National Transplant Center. METHODS: SITF group defined donor/recipient inclusion criteria, setting minimum graft/recipient weight ratio (GRWR) at 1.2%. Donors and recipients on waiting list were shared on an Internet secured Web-based application (Split Liver Network [SLN]). SLN performs real-time matches between the registered donor and all patients on the bases of GRWR, displaying a size-based list of matched donor/patients, figuring hemiliver allocation once the whole organ is referred to a specific center. RESULTS: In the 2005 period, 47 donors and 124 patients were entered by nine centers, and six hemiliver allocations for three SLT A/A procedures were performed. By retrospective simulation of 32 donors and 613 recipients in the Nord Italia Transplant area, matchable recipients were available for all donors, while blood group frequency seemed a determining factor, more than donor body weight. COMMENTS: SLN hemiliver allocation might increase matching possibilities, offering a timely transplant for recipients of rare group, small-size, or in need of short wait. Our experience suggests that such an environment may be helpful to share a macroregional pool of liver recipients and to optimize SLT.


Subject(s)
Hepatectomy/methods , Internet , Liver Transplantation/statistics & numerical data , Tissue Donors/statistics & numerical data , Tissue and Organ Harvesting/methods , Tissue and Organ Procurement/methods , Adult , Databases, Factual , Humans , Italy , Retrospective Studies , Software
18.
Transplant Proc ; 39(6): 1910-7, 2007.
Article in English | MEDLINE | ID: mdl-17692651

ABSTRACT

The usage of a computerized system to organize data and ease the activity procedures of liver transplantation is useful in clinical transplantation. Preliminary cognitive research on systems of clinical transplantation database concerning medical reports was performed to verify their development level. The survey highlighted that, so far, there has been no experimentation that can be applied to a medical report type devoted to liver transplantation. Regulations in force substantially point out that the medical report ought to contain all items that have to be taken into account in handling the patient from pretransplantation to follow-up. The Department of Transplantation of Genoa chose its medical report model for liver transplantation. The medical report model included the following items: personal data; case history; diagnosis; initial examination for prelisting; fitness for transplantation; assistance context; clinical data including subjective, objective, and instrumental parameters; pharmacological therapies; informed consent, evaluation of fitness; nursing data; counseling and clinical evaluations according to protocols and guidelines of the national transplantation centers. If the computing is well trained, it is supposed to help maintain a whole data view provided it is supplied information in an adequate way. Immediate clinical procedural advantages and useful scientific observations may be obtained from a high-quality database. In fact, all functions have to be applied to specific clinical, administrative needs to be remotely shared and conveniently integrated with each other to make the liver transplantation medical report an easy and handy instrument for inputting and handling data. It must be a precise, complete instrument that may be accessible in real time from any site connected with the intranet network, be unchangeable, and be protected to ensure certification and forensic medicine value.


Subject(s)
Computers , Liver Transplantation/standards , Program Development/standards , Anesthesia/methods , Humans , Medical History Taking , Quality Assurance, Health Care , Reproducibility of Results
19.
Surg Endosc ; 20(8): 1214-20, 2006 Aug.
Article in English | MEDLINE | ID: mdl-16823653

ABSTRACT

BACKGROUND: The Italian Registry of Laparoscopic Surgery of the Spleen (IRLSS) was developed to provide at the national level an informative tool useful for performing multicenter studies in the field of spleen laparoscopic surgery. In this first study analyzing the IRLSS data, a cohort of patients with hematologic diseases was retrospectively investigated for potential predictive parameters that could affect the outcome of laparoscopic splenectomy. METHODS: A total of 309 patients who underwent laparoscopic splenectomy for hematologic diseases in 17 Italian centers (between February 1, 1993, and September 30, 2004) were entered in the IRLSS. Their records were analyzed retrospectively by the Student's t-test, chi-square, and logistic regression. RESULTS: The mean operative time was 141 min (range, 30-420 min). Conversion was necessary in 21 cases (7%), and approximately 1 accessory spleen in 25 patients (9%) was found. The mean spleen weight was 1191 g (range, 85-4,500 g). Perioperative death occurred in two cases (0.6%). No complications were experienced by 253 patients (81.9%), who had a mean hospital stay of 5.4 days (range, 2-30 days). Overall morbidity occurred in 56 patients (18.1%), mainly associated with transient fever (n = 22), pleural effusion (n = 13), and actual or suspected hemorrhage (n = 12), requiring a reintervention for 7 patients. Multivariate analysis found that body mass index (p = 0.024) and clinical indication (p = 0.004) were independent predictors for surgical conversion. The clinical indication was almost significant as an independent predictor for the occurrence of postoperative complication (p = 0.05). CONCLUSIONS: This first study analyzing the IRLSS data shows that laparoscopic splenectomy may represent the gold standard treatment for hematologic diseases with normal-size spleen. The low morbidity and mortality rate suggests that laparoscopic splenectomy can be successfully proposed also for splenomegaly in hematologic malignancies.


Subject(s)
Hematologic Diseases/surgery , Laparoscopy , Splenectomy , Adolescent , Adult , Aged , Aged, 80 and over , Body Mass Index , Child , Cohort Studies , Female , Fever/etiology , Hematologic Diseases/mortality , Hematologic Diseases/pathology , Hemorrhage/etiology , Humans , Italy , Laparoscopy/adverse effects , Length of Stay , Male , Middle Aged , Organ Size , Pleural Effusion/etiology , Predictive Value of Tests , Registries , Retrospective Studies , Spleen/pathology , Splenectomy/adverse effects , Treatment Outcome
20.
Transplant Proc ; 37(6): 2415-6, 2005.
Article in English | MEDLINE | ID: mdl-16182693

ABSTRACT

In 2002, the Italian Ministry of Health (IMH) launched a formal call for health research programs within the Research and Development (R&D) Policy. In this context, the research program "Innovative Strategies to Expand Cadaveric Donor Pool for Liver Transplantation" (SITF Project) has been proposed. The SITF Project has been formally approved by IMH as a 2-year research program included in the R&D Policy. The main goals of the SITF Project are to improve matching criteria for split liver transplantation (SLT) in both pediatric and adult recipients, to promote an increase of the SLT/full- size liver transplantation ratio at the national level, and, especially, to establish shared criteria for SLT in 2 adult recipients. The original executive plan of the SITF Project prefigured the participation of both the Italian transplantation centers with more advanced experience in the field of SLT, and institutional partnership, such as Nord Italia Transplant (NITp) and Italian National Transplant Center. A first Web public area concerning the SITF Project has been activated, as well as a reserved Web area with the aim to share cadaveric donors and patients in the waiting lists between Operative Units involved in the research program. For this objective, the first version Oracle-based database able to perform an automatic matching between a single cadaveric donor and 2 potential adult recipients has been released at the beginning of 2005. The SITF Project represents a new approach in the management of SLT for 2 adult recipients in Italy and a model for a functional network between Italian transplantation centers.


Subject(s)
Liver Transplantation/statistics & numerical data , Tissue Donors/supply & distribution , Cadaver , Humans , Interinstitutional Relations , Italy , Tissue and Organ Procurement/organization & administration
SELECTION OF CITATIONS
SEARCH DETAIL