RESUMO
BACKGROUND AND AIMS: Obesity is predictive of metabolic syndrome (metS), type 2 diabetes, cardiovascular (CV) disease and cancer. The aim of the study is to assess the risk of incident cancer connected to obesity and metS in a Mediterranean population characterized by a high prevalence of obesity. METHODS AND RESULTS: As many as 1133 subjects were enrolled in two phases and followed for 25 years (859 subjects) or 11 years (274 subjects) and incident cancer was registered in the follow-up period. Anthropometric measures and biochemical parameters were filed at baseline and evaluated as predictors of incident cancer by measuring hazards ratios (HR) using multivariate Cox parametric hazards models. Best predictive threshold for metabolic parameters and metS criteria were recalculated by ROC analysis. Fasting Blood Glucose >5.19 mmol/L [HR = 1.58 (1.0-2.4)] and the TG/HDL ratio (log10) (Males > 0.225, Females > 0.272) [HR = 2.44 (1.3-4.4)] resulted independent predictors of survival free of cancer with a clear additive effect together with age classes [45-65 years, HR = 2.47 (1.3-4.4), 65-75 years HR = 3.80 (2.0-7.1)] and male gender [HR = 2.07 (2.3-3.1)]. CONCLUSIONS: Metabolic disturbances are predictive of cancer in a 25 years follow-up of a Mediterranean population following a traditional Mediterranean diet. The high prevalence of obesity and metS and the observed underlying condition of insulin resistance expose this population to an increased risk of cardiovascular disease and cancer despite the healthy nutritional habits.
Assuntos
Doenças Cardiovasculares/epidemiologia , Síndrome Metabólica/epidemiologia , Neoplasias/epidemiologia , Obesidade/epidemiologia , Idoso , Área Sob a Curva , Biomarcadores/sangue , Glicemia/metabolismo , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/prevenção & controle , Distribuição de Qui-Quadrado , Dieta Saudável , Dieta Mediterrânea , Intervalo Livre de Doença , Feminino , Humanos , Incidência , Resistência à Insulina , Itália/epidemiologia , Lipídeos/sangue , Masculino , Síndrome Metabólica/sangue , Síndrome Metabólica/diagnóstico , Pessoa de Meia-Idade , Análise Multivariada , Neoplasias/diagnóstico , Neoplasias/prevenção & controle , Obesidade/diagnóstico , Prevalência , Modelos de Riscos Proporcionais , Fatores de Proteção , Curva ROC , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de TempoRESUMO
BACKGROUND: We performed a study to evaluate change in cardiometabolic and endothelial function in HIV-infected patients switching to darunavir/ritonavir (DRV/r) monotherapy versus triple therapy. METHODS: The MONARCH trial recruited 30 patients who were taking triple combination therapy and with HIV RNA<40 copies/ mL. Patients were randomized to either DRV/r 800/100 mg once daily (OD) monotherapy or DRV/r 800/100 mg OD plus 2 nucleoside reverse transcriptase inhibitors (NRTIs). The primary objective was to assess endothelial function change from baseline to 24 and 48 weeks in brachial artery flow-mediated dilation (FMD) test; changes in endothelial precursor cells (EPCs) and circulating endothelial cells (CECs) were secondary objectives. RESULTS: At baseline, the median age of participants was 43 years, 77% were men, and median CD4 cell count was 585 cells/µL. The median FMD (%) decreased in both arms in the study period (P ⯠.05), with no statistically significant difference between arms (10.7% at baseline and 6.7% at week 48 in the DRV/r + 2 NRTIs arm; 11.1% at baseline and 8.8% at week 48 in the DRV/r arm). The changes at week 48 were similar in the 2 arms for EPCs and CECs. Total cholesterol and low-density lipoprotein (LDL) cholesterol showed larger rises to week 48 in the DRV/r arm monotherapy group than in the triple-therapy group (+26 vs +9 mg/dL for total cholesterol and +14 vs +5 mg/dL for LDL cholesterol). CONCLUSIONS: In the MONARCH trial, switching from triple combination treatment to DRV/r, with or without nucleoside analogues, did not translate into clinically meaningful reductions in endothelial function as measured by FMD.
Assuntos
Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Fármacos Anti-HIV/administração & dosagem , Células Endoteliais/fisiologia , HIV-1 , Nucleosídeos/administração & dosagem , RNA Viral/sangue , Ritonavir/administração & dosagem , Sulfonamidas/administração & dosagem , Síndrome da Imunodeficiência Adquirida/sangue , Síndrome da Imunodeficiência Adquirida/fisiopatologia , Síndrome da Imunodeficiência Adquirida/virologia , Adulto , Artéria Braquial/fisiopatologia , LDL-Colesterol/sangue , Darunavir , Quimioterapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Carga ViralRESUMO
Antiretroviral therapy (ART) significantly reduced Human Immunodeficiency Virus (HIV) morbidity and mortality; nevertheless, stigma still characterises the living with this condition. This study explored patients' coping experience by integrating narrative medicine (NM) in a non-interventional clinical trial. From June 2018 to September 2020 the study involved 18 centres across Italy; enrolled patients were both D/C/F/TAF naïve and previously ART-treated. Narratives were collected at enrolment (V1) and last visit (V4) and then independently analysed by three NM specialist researchers through content analysis. One-hundred and fourteen patients completed both V1 and V4 narratives. Supportive relationships with clinicians and undetectable viral load facilitated coping. Conversely, lack of disclosure of HIV-positive status, HIV metaphors, and unwillingness to narrate the life before the diagnosis indicated internalised stigma. This is the first non-interventional study to include narratives as patient reported outcomes (PROs). Improving HIV awareness and reducing the sense of guilt experienced by patients helps to overcome stigma and foster coping.
Assuntos
Infecções por HIV , Medicina Narrativa , Humanos , HIV , Estigma Social , Infecções por HIV/tratamento farmacológico , Adaptação PsicológicaRESUMO
Background: The protease inhibitor (PI) darunavir (DRV) has proven to be highly effective and well tolerated for HIV treatment. The DAD (Data collection on Adverse Effects of Anti-HIV Drugs) cohort showed an increased 5-year cumulative cardiovascular (CV) risk in patients given various PIs, including DRV, whereas two other recent studies found no association between DRV and CV diseases. Methods: We performed a post-hoc analysis of CV adverse events (CVAEs) in an Italian cohort, the TMC114-HIV4042 observational study, where 875 patients treated with ritonavir-boosted DRV-based regimens were followed for a total of 1,566 patient-years. Results: We observed 23 CVAEs of any type, including 17 [12 (95%CI, 7-19) per 1,000 patient-years] primary; 14 [10 (95%CI, 5-17) per 1,000 patient-years] were primary Framingham-type general CVAEs, close to what expected according to the Framingham algorithm based on traditional risk factors. Age and systolic blood pressure (SBP) at the time of study enrolment were the only relevant (p<0.01) independent predictors of CVAEs in all models; patients with any CVAE were on average 10 years older and had an SBP 14 mmHg higher than patients without CVAEs. When controlling for age and SBP, the association with other traditional factors, including serum lipids, and with HIV-specific factors was not statistically significant (p>0.05). Models that also adjusted for previous ARV exposure showed no statistically significant association between any-type CVAEs and either DRV doses, 1,200 or 800 mg/daily (as also suggested by propensity score stratification), or previous DRV exposure duration. Conclusion : We found no evidence of a relationship between DRV use and increased CV risk.
Assuntos
Antirretrovirais/efeitos adversos , Doenças Cardiovasculares/induzido quimicamente , Darunavir/efeitos adversos , Infecções por HIV/tratamento farmacológico , Inibidores da Protease de HIV/efeitos adversos , Adulto , Antirretrovirais/farmacologia , Estudos de Coortes , Darunavir/farmacologia , Relação Dose-Resposta a Droga , Feminino , Inibidores da Protease de HIV/farmacologia , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Fatores de RiscoRESUMO
Darunavir/ritonavir (DRV/r) is a second-generation protease inhibitor used in treatment-naïve and -experienced HIV-positive adult patients. To evaluate efficacy and safety in these patient settings, we performed a meta-analysis of randomized controlled trials. We considered eight studies involving 4240 antiretroviral treatment (ART)-naïve patients and 14 studies involving 2684 ART-experienced patients. Regarding efficacy in the ART-naive patients, the virological response rate was not significantly different between DRV/r and the comparator. For the ART-experienced failing patients, the virological response rate was significantly higher with DRV/r than with the comparator (RR 1.45, 95% CI: 1.01-2.08); conversely, no significant differences were found between the treatment-experienced and virologically controlled DRV/r and comparator groups. Regarding safety, the discontinuation rates due to adverse events (AEs) and DRV/r-related serious adverse events (SAEs) did not significantly differ from the rates in the comparator group (RR 0.84, 95% CI: 0.59-1.19 and RR 0.78, 95% CI: 0.57-1.05, respectively). Our meta-analysis indicated that DRV/r-based regimens were effective and tolerable for both types of patients, which was consistent with published data.
Assuntos
Darunavir/uso terapêutico , Infecções por HIV/tratamento farmacológico , Inibidores da Protease de HIV/uso terapêutico , HIV-1/efeitos dos fármacos , Ritonavir/uso terapêutico , Darunavir/efeitos adversos , Inibidores da Protease de HIV/efeitos adversos , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Ritonavir/efeitos adversos , Resultado do Tratamento , Carga Viral/efeitos dos fármacosRESUMO
SLE begins with renal symptoms in about 30-50% of the patients and after 10 years over 70% of them has complications. In the last years the medical therapy improved the outcome of SLE and its complications. Presently, the survival for lupus nephritis is 80% after five years. The nephritis treatment is divided into remission-inducing treatment that is followed by remission-maintaining treatment. Moreover, it is considered the therapy for preventing or reducing toxic and side-effects from drugs and the therapy for flare-ups. To initiate the specific therapy is important to consider the histological class (WHO). In the remission-inducing treatment steroids are used alone for 3-6 months in class IIB or in association with cyclophosphamide in classes III-IV and V and for flare-ups. For remission-maintaining treatment steroids are used in association with azathioprine. The drugs improved the outcome of nephritis but produced side-effects that determined the suspension of the drug and/or reduction of dosage and/or the use of other drugs like mycophenolate mofetil or rituximab.
Assuntos
Nefrite Lúpica/tratamento farmacológico , Árvores de Decisões , HumanosRESUMO
Peripheral vascular disease (PVD) is an indicator of diffuse atherosclerosis and is associated with a greatly increased incidence of coronary heart and cerebrovascular disease. Although several studies have assessed whether in vivo platelet activation takes place in patients with PVD, no data are available comparing different platelet function tests in this patient population. We have compared prospectively four tests for the measurement of in vivo platelet activation (plasma betaTG, plasma PF4, intraplatelet betaTG and urinary excretion of 11-dehydro-TXB2) and one in vitro platelet function test (ADP-induced platelet aggregation) in 63 well-characterized patients with intermittent claudication and in 18 age- and sex-matched healthy volunteers. No statistically significant difference was found between patients and controls for plasma betaTG (20.0 +/- 11.8 vs. 18.8 +/- 9.0 ng/ml, respectively), plasma PF4 (5.2 +/- 2.9 vs. 6.3 +/- 3.5 ng/ml), betaTG/PF4 ratio (4.0 +/- 2.9 vs. 3.6 +/- 1.8), intraplatelet betaTG (4503 +/- 1482 vs. 4059 +/- 1065 ng/ml), and threshold aggregatory concentration of ADP (1.7 +/- 0.72 vs. 1.45 +/- 0.56 microM). Urinary 11-dehydro-TXB2 was instead significantly higher in the PVD group (55.4 +/- 27.5 vs. 26.7 +/- 7.0 ng/h, p <0.001). Our study shows that urinary 11-dehydro-TXB2 is a more sensitive index of in vivo platelet activation than the measurement of either platelet specific proteins or of in vitro platelet aggregation in patients with PVD.
Assuntos
Doenças Vasculares Periféricas/sangue , Ativação Plaquetária/fisiologia , Difosfato de Adenosina/administração & dosagem , Difosfato de Adenosina/farmacologia , Adulto , Idoso , Biomarcadores/sangue , Estudos Transversais , Feminino , Humanos , Perna (Membro)/irrigação sanguínea , Perna (Membro)/patologia , Masculino , Pessoa de Meia-Idade , Doenças Vasculares Periféricas/urina , Agregação Plaquetária/efeitos dos fármacos , Fator Plaquetário 4/metabolismo , Testes de Função Plaquetária , Estudos Prospectivos , Tromboxano B2/análogos & derivados , Tromboxano B2/metabolismo , Tromboxano B2/urina , beta-Tromboglobulina/metabolismoRESUMO
There is growing interest in the relationship between H. pylori infection and gastro-oesophageal reflux disease (GORD). However, this relationship is complex, as yet not fully elucidated, and probably based on a multiplicity of factors. The prevalence of H. pylori infection in patients with GORD is similar, more often lower than in matched controls. There is a negative correlation between H. pylori infection and the severity of GORD. There are many hypothetical mechanisms by which H. pylori infection may protect from the development of GORD. Conversely, there are many possible mechanisms by which H. pylori infection could theoretically foster the GORD. Patients after H. pylori eradication may develop GORD, and this seems to suggest a protective role of H. pylori infection, but other possible explanations include weight gain after H. pylori eradication, changes in dietary habits and smoking, and pre-existing GORD. H. pylori infected patients treated by various acid-inhibiting therapies such as proton pump inhibitors (PPIs), H2-receptors antagonists (H2-RA) or vagotomy, have an increase of their corpus gastritis severity, both in the activity of inflammation and in the density of organisms. Long-term therapy of GORD in H. pylori infected may lead to rapid progression of atrophic gastritis intestinal metaplasia and dysplasia, and increase the risk of developing gastric cancer. More recently it has been shown that H. pylori infection may interfere with the acid suppressive therapies used for treating GORD. In our opinion the progression of gastritis depends on the threshold of acid output at which H. pylori can 'flourish'. Recently interest is growing on gastric transitional zones and Helicobacter ecology. Any decrease of acid secretion changes the behaviour of H. pylori: the activity of gastritis improves in the antrum, but it deteriorates in the body. During proton pump inhibitor treatment, H. pylori redistribution occurs within the stomach, from an antral to a corpus or fundus prevalent pattern; corpus-fundus gastritis, exacerbated by PPI therapy, may result both in a diminished acid secretion and gastro-oesophageal reflux. The interest in Barrett's oesophagus is growing due to the associated risk of adenocarcinoma. The literature seems to demonstrate that the prevalence of H. pylori infection of the stomach in Barrett's oesophagus patients is not different from that exhibited by controls, roughly one-third of the subjects. Intestinal metaplasia of the gastric cardia seems to be equally frequent in patients with and without GORD. Finally, it appears unlikely that a causal relationship exists between H. pylori infection and Barrett's-associated adenocarcinoma.
Assuntos
Refluxo Gastroesofágico/microbiologia , Refluxo Gastroesofágico/terapia , Infecções por Helicobacter/microbiologia , Helicobacter pylori , Animais , Refluxo Gastroesofágico/fisiopatologia , Infecções por Helicobacter/fisiopatologia , HumanosRESUMO
BACKGROUND: Triple therapies containing omeprazole and ranitidine have been shown to be equivalent in eradicating H. pylori infection, but have been assessed either separately or head-to-head, only in small trials. AIM: To carry out a large randomized controlled study comparing omeprazole and ranitidine combined with two antibiotic combinations for 1 week. METHODS: Three hundred and twenty H. pylori-positive patients were randomly subdivided into four equal-sized groups and received one of the following treatments: OAM = omeprazole 20 mg b.d. + amoxycillin 1 g b.d. + metronidazole 500 mg b.d.; RAM = ranitidine 300 mg b.d. + amoxycillin 1 g b.d. + metronidazole 500 mg b.d.; OAC = omeprazole 20 mg b.d. + amoxycillin 1 g b.d. + clarithromycin 250 mg t.d.s.; RAC = ranitidine 300 mg b.d. + amoxycillin 1 g b.d. + clarithromycin 250 mg t.d.s. The assessment of H. pylori status was performed before and 4 weeks after the end of therapy by means of CLO-test and histology. H. pylori infection was considered to be eradicated when both tests were negative. RESULTS: OAM and RAM eradicated H. pylori in 89% and 85% of cases on per protocol (P = 0.48) and in 77% and 75% of cases on intention-to-treat analyses (P = 0.71). OAC and RAC eradicated H. pylori in 67% and 70% of cases on per protocol (P = 0.68) and in 57% and 64% of cases on intention-to-treat analyses (P = 0.41). In contrast, there was significant difference between OAM and OAC (P<0.01) and between RAM and RAC (P<0.05). Side-effects occurred in 15%, 10%, 17% and 16% of patients with respect to the above four subgroups. CONCLUSIONS: Omeprazole and ranitidine combined with two antibiotics for 1 week are equally effective in the eradication of H. pylori infection, and these results question the role of profound acid suppression in the eradication of the bacterium.
Assuntos
Antibacterianos/administração & dosagem , Antiulcerosos/administração & dosagem , Infecções por Helicobacter/tratamento farmacológico , Helicobacter pylori/efeitos dos fármacos , Omeprazol/administração & dosagem , Ranitidina/administração & dosagem , Adulto , Idoso , Quimioterapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
BACKGROUND: It is now clear that the extent to which gastric acid secretion must be suppressed varies with the clinical condition being treated. AIM: To assess the 24-h control of gastric acidity and the individual response variability of three different doses of pantoprazole. METHODS: Sixty-four duodenal ulcer patients were recruited for this prospective, randomized, multicentre, double-blind, parallel-group study. They were subdivided into three well-matched groups treated with 20 mg o.m., 40 mg o.m. and 40 mg b.d. of pantoprazole, respectively. Endoscopy and intragastric pH monitoring were performed in each patient before and after 14 days of treatment. RESULTS: Fifty-five patients were eligible for final analysis (17 treated with 20 mg o.m., 18 with 40 mg o.m. and 20 with 40 mg b.d. pantoprazole). The ulcer crater healed in 94, 88 and 95% of cases, respectively. The three dosages of pantoprazole produced significant increases in gastric pH compared to basal levels (P < 0.0001). There was also a clear dose-dependent pharmacodynamic effect, which augmented on moving from the lowest dosage of 20 mg o.m. pantoprazole to the highest dosage of 40 mg b.d. (P < 0.01-0.001). The inter-individual response variability within the three treatment groups was more marked with the dose of 20 mg than with the two higher doses of pantoprazole. CONCLUSIONS: All three doses of pantoprazole we tested are highly effective in decreasing gastric acidity and there is a clear dose-dependent pharmacodynamic effect on moving from the lowest to the highest dosage. The greatest inter individual variation in the degree of acid inhibition was seen with pantoprazole 20 mg o.m., while the majority of patients responded adequately to the two higher doses of the drug.
Assuntos
Antiulcerosos/farmacologia , Benzimidazóis/administração & dosagem , Úlcera Duodenal/tratamento farmacológico , Ácido Gástrico/metabolismo , Sulfóxidos/administração & dosagem , 2-Piridinilmetilsulfinilbenzimidazóis , Adolescente , Adulto , Método Duplo-Cego , Esquema de Medicação , Endoscopia , Feminino , Determinação da Acidez Gástrica , Humanos , Concentração de Íons de Hidrogênio , Masculino , Pessoa de Meia-Idade , Omeprazol/análogos & derivados , Pantoprazol , Fatores de TempoRESUMO
BACKGROUND: Ranitidine bismuth citrate (RBC) co-prescribed with clarithromycin and metronidazole for 1 week has been shown to be an effective eradicating regimen for Helicobacter pylori. AIM: To determine the optimal duration of this regimen. METHODS: A series of 165 dyspeptic patients were recruited for this randomized, open, parallel-group study. They were subdivided into three groups receiving RBC 400 mg b.d. plus clarithromycin 250 mg b.d. and metronidazole 500 mg b.d. for three different periods (4, 7 and 10 days). H. pylori infection was assessed by the concomitant positivity of CLO-test and histology performed at the pre-entry endoscopy. The bacterium was considered eradicated on the basis of a negative 13C-urea breath test performed at least 28 days after the completion of treatment. RESULTS: The three subgroups were well matched and 16 patients dropped out of the study for many reasons (six in the 4-day, five in the 7-day and five in the 10-day treatment regimens). Intention-to-treat cure rates were 60%, 84% and 85%, and the per-protocol rates 67%, 92% and 94% in the 4-day, 7-day and 10-day treatment regimens, respectively. There was a significant difference, P = 0.003-0.006 on intention-to-treat and P = 0.001-0. 002 on per protocol analysis between the 4-day and the 7-day and the 4-day and the 10-day periods, respectively. The 7-day and 10-day periods did not differ from each other. Side-effects were reported in 9%, 14% and 20% of the 4-, 7- and 10-day regimens. They led to stopping treatment in four cases (one in the 7-day and three in the 10-day period). There was no statistical difference among them. CONCLUSIONS: Reducing the duration of RBC-based triple therapy to 4 days provides a low and unacceptable rate of H. pylori eradication. As there is no difference between 7 and 10 days of treatment, 1 week represents the optimal time period for this kind of treatment, based on RBC plus two antibiotics.
Assuntos
Antibacterianos/administração & dosagem , Antiulcerosos/administração & dosagem , Bismuto/administração & dosagem , Claritromicina/administração & dosagem , Infecções por Helicobacter/tratamento farmacológico , Helicobacter pylori , Metronidazol/administração & dosagem , Ranitidina/análogos & derivados , Testes Respiratórios/métodos , Quimioterapia Combinada , Feminino , Antagonistas dos Receptores H2 da Histamina/administração & dosagem , Humanos , Masculino , Pessoa de Meia-Idade , Ranitidina/administração & dosagem , Resultado do Tratamento , Ureia/metabolismoRESUMO
BACKGROUND: One-week triple regimens are currently the most recommended therapy for the eradication of Helicobacter pylori. No previous study has evaluated the efficacy of a short-term regimen combining ranitidine bismuth citrate with two antibiotics. METHODS: Seventy-two consecutive H. pylori-positive dyspeptic patients were recruited for this randomized, three-centre, open, parallel-group study. They were subdivided into two groups receiving either ranitidine bismuth citrate 400 mg b.d. + clarithromycin 250 mg b.d. and metronidazole 500 mg b.d. (group A) or ranitidine bismuth citrate 400 mg b.d. + clarithromycin 250 mg b.d. and metronidazole 250 mg q.d.s (group B) for 1 week. H. pylori infection was assessed by CLO-test and histology on both antral and corpus biopsies before and at least 4 weeks after the end of therapy. The bacterium was considered eradicated when both tests were negative. Eradication rates and the number of side-effects were evaluated in each group. The Chi-squared test was used for statistical analysis. RESULTS: One patient with only CLO-test positivity was erroneously randomized to group B and four patients dropped out of the study (two in group A and two in group B), mainly because they refused the second endoscopy. In group A, H. pylori was eradicated in 31 of 36 patients (intention-to-treat = 86%; 95% CI = 71-95% and per protocol 31/34 = 91%; 95% CI = 76-98%). Side-effects occurred in 10 patients (27%) and they were generally mild. In group B, H. pylori was eradicated in 29 of 35 patients (intention-to-treat = 83%; 95% CI = 66-93%; and per protocol 29/33 = 88%; 95% CI = 72-97%). Seven patients (20%) complained of modest side-effects. There was no significant difference between the two treatment arms (P = N.S.): no severe adverse events occurred and none of the patients was withdrawn from the study because of them. CONCLUSIONS: The co-administration of ranitidine bismuth citrate plus clarithromycin at low dosage and metronidazole in twice daily doses for 1 week is a short, effective and well-tolerated regimen for the eradication of H. pylori. These findings should provide the impetus for large-scale investigations.
Assuntos
Antibacterianos/administração & dosagem , Antibacterianos/uso terapêutico , Bismuto/uso terapêutico , Claritromicina/uso terapêutico , Infecções por Helicobacter/tratamento farmacológico , Helicobacter pylori , Antagonistas dos Receptores H2 da Histamina/uso terapêutico , Metronidazol/administração & dosagem , Ranitidina/análogos & derivados , Quimioterapia Combinada , Feminino , Infecções por Helicobacter/microbiologia , Helicobacter pylori/isolamento & purificação , Humanos , Masculino , Antro Pilórico/microbiologia , Ranitidina/uso terapêuticoRESUMO
There is much experimental work on the occurrence of tolerance to the antisecretory effect of H2-receptor antagonists in healthy subjects, while data on its development in patients with duodenal ulcer are poor and conflicting. Moreover, this phenomenon has not been studied previously with 24 h gastric pH-metry in patients with active duodenal ulcer. For these reasons, we carried out a prospective pharmacodynamic investigation in 48 patients with endoscopically proven duodenal ulcer using the well-established once daily dosing schedule of H2 blockers. They were studied by means of 24 h continuous endoluminal pH-metry which was performed before, on d1 and d28 after receiving an oral bedtime dose (2200 hours) of either roxatidine 150 mg or ranitidine 300 mg, given in randomized and single-blind fashion. Eight patients did not complete the study for various reasons and 82% of ulcers healed after 4 weeks of therapy. Gastric pH was higher (P < 0.001) on d1 and d28 than basal values during all time periods, but the evening, with both H2 blockers. There was no significant difference between pH values of d1 and d28 in any time interval with both roxatidine and ranitidine. There was also no difference in pharmacodynamic data between the two active treatments. We conclude that tolerance does not develop after 1 month's treatment with a bedtime dose of H2 antagonist in patients with active duodenal ulcer and therefore data gathered on this phenomenon in healthy subjects are not applicable to ulcer patients.
Assuntos
Úlcera Duodenal/tratamento farmacológico , Antagonistas dos Receptores H2 da Histamina/administração & dosagem , Piperidinas/administração & dosagem , Ranitidina/administração & dosagem , Adulto , Análise de Variância , Tolerância a Medicamentos , Feminino , Determinação da Acidez Gástrica , Humanos , Concentração de Íons de Hidrogênio/efeitos dos fármacos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Método Simples-CegoRESUMO
Increasingly frequent reports of lymphoma with a gastro-intestinal primary location have stimulated much interest. Symptomatology has been shown not to be very specific, and scarcely different to that of other gastro-intestinal pathologics, both benign and malignant. The identification of some endoscopic pictures which suggest a lymphomatosic pathology and the possibility of collecting targeted biopsy samples, have placed endoscopy among the most important tests in the diagnostic and staging phase of gastro-intestinal lymphoma. This technique plays an equally important role in the follow-up period, since it allows the therapeutic efficacy of treatment to be assessed and the early identification of possible relapses.
Assuntos
Endoscopia Gastrointestinal , Neoplasias Gastrointestinais/diagnóstico , Linfoma/diagnóstico , Neoplasias Gastrointestinais/patologia , Humanos , Linfoma/patologia , Estadiamento de NeoplasiasRESUMO
Significant progress has been made in the treatment of duodenal ulcers since cimetidine went on the market. Furthermore widespread use of the H2 blockers has enable us to identify a group of patients who take 8-12 weeks to heal, despite effective treatment and who are now known as "slow" or non-responders. In tackling the problem of ulcers resistant to medical treatment, the paper details the possibilities offered by current solutions on the basis of personal experience as well as reports in the literature. The results obtainable by surgery are also assessed with emphasis on the identification of suitable patients for and the appropriate timing of his surgical option. Finally a therapeutic flow-chart providing guidelines for the rational selection of therapeutic strategies that still had to be based on uncodified personal preferences is proposed.
Assuntos
Antiulcerosos/uso terapêutico , Úlcera Duodenal/terapia , Antagonistas dos Receptores H2 da Histamina/uso terapêutico , Parassimpatolíticos/uso terapêutico , Quimioterapia Combinada , Úlcera Duodenal/tratamento farmacológico , Úlcera Duodenal/cirurgia , Seguimentos , Antagonistas dos Receptores H2 da Histamina/administração & dosagem , Humanos , Parassimpatolíticos/administração & dosagem , Recidiva , Fatores de Tempo , Vagotomia Gástrica Proximal , Vagotomia TroncularRESUMO
BACKGROUND: Chronic Obstructive Pulmonary Disease (COPD) is a profoundly disabling disease managed predominantly by General Practitioners (GPs). We planned this prospective trial to evaluate the applicability of Italian GP-directed guidelines in routine practice and whether adherence to them improves treatment efficacy, with respect to decreased exacerbations, hospital admissions, drug use, and out-patient appointments and improved quality of life (QoL). METHODS: In a cluster randomised trial, 22 GPs were randomly put into two groups: one group was asked to follow the guidelines (YES-GL), the other to continue normal clinical practice (NO-GL). These GPs enrolled 123 patients with COPD and followed them for one year. RESULTS: Patients managed by the YES-GL GPs had more outpatient appointments and specialist consultations and a higher probability of being classified as having severe COPD. The QoL was fairly low in both groups, and all other clinical outcomes taken into consideration, were not affected by application of the guidelines. CONCLUSION: The guidelines did not substantially alter the clinical evolution of COPD patients, even though some facets of management improved.
Assuntos
Guias de Prática Clínica como Assunto , Doença Pulmonar Obstrutiva Crônica/terapia , Idoso , Feminino , Seguimentos , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Guias de Prática Clínica como Assunto/normas , Estudos Prospectivos , Qualidade de Vida , Resultado do TratamentoAssuntos
Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Responsabilidade pela Informação/legislação & jurisprudência , Legislação Farmacêutica , Interações Medicamentosas , Humanos , Relações Interprofissionais , Responsabilidade Legal , Farmacêuticos/legislação & jurisprudência , Relações Profissional-Paciente , Estados UnidosRESUMO
We report the case of a 73-year-old woman who was hospitalized for mild abdominal pain after her referral following a diagnostic assessment of acute lithiasic cholecystitis. After the spontaneus regression of her painful symptoms and fever and several days of well-being, her clinically acute abdominal features suddenly showed an obstruction of the upper gastrointestinal tract. An emergency esophagogastroduodenoscopy (EGDS) confirmed that a large gallstone completely obstructed the pylorus as previously demonstrated by an ultrasound examination of the gallbladder. During the course of endoscopy, removal of the gallstone from the duodenum was achieved by pulling it into the stomach; the patient underwent an operation, the gallstone was removed, and the cholecystoduodenal fistula resolved. Postoperative procedures and recovery were rapid and favorable.
Assuntos
Colelitíase/cirurgia , Endoscopia Gastrointestinal , Estenose Pilórica/cirurgia , Idoso , Colelitíase/complicações , Feminino , Humanos , Prognóstico , Estenose Pilórica/etiologia , Síndrome , Fatores de TempoRESUMO
The stomachs of cirrhotic patients are frequently subject to a number of alterations, detectable by endoscopy, the presence of which indicates a disturbance in the mucosa. Several investigators believe that portal hypertension plays an etiopathogenetic role. Three groups of subjects were studied prospectively: 83 cirrhotic patients with portal hypertension, 53 cirrhotic patients without portal hypertension, and 135 control subjects. Snake skin, scarlatina rash, and petechia were the most frequent endoscopic findings in the cirrhotic patients with portal hypertension (P less than 0.001); these findings were also most frequently present in association with each other in this group. There was no correlation between the endoscopic findings, the clinical gravity of liver cirrhosis (Child-Pugh grade), and the gravity of esophageal varices (Beppu score). There were no characteristic inflammatory findings in the gastric mucosa. Hypergastrinemia was often observed in cirrhotic patients with and without angiodysplasias.
Assuntos
Mucosa Gástrica/patologia , Gastrite/etiologia , Hipertensão Portal/complicações , Cirrose Hepática/complicações , Idoso , Biópsia , Doença Crônica , Análise por Conglomerados , Feminino , Gastrinas/sangue , Gastrite/sangue , Gastrite/patologia , Gastrite Atrófica/etiologia , Gastrite Atrófica/patologia , Gastroscopia , Humanos , Hipertensão Portal/sangue , Cirrose Hepática/sangue , Masculino , Pessoa de Meia-Idade , Estudos ProspectivosRESUMO
Endoscopic studies were performed to determine whether changes occurred in the duodenum related to portal hypertension in patients with liver cirrhosis. The total of 271 patients studied were subdivided into three groups: 83 patients with liver cirrhosis and portal hypertension, 53 with liver cirrhosis but no portal hypertension, and 135 controls. In the duodenum of cirrhotic patients with portal hypertension several changes were observed on endoscopy that were also present in the other two groups. Atrophy and vascular malformations, however, were present only in the duodenum of cirrhotic patients with portal hypertension, although in only a few patients and with statistical significance only for vascular malformations (p less than 0.01, phi = 0.21). Eleven percent of the patients had more than one endoscopic finding, but the associations of findings were without statistical significance. No statistically significant correlation was observed between the clinical severity of cirrhosis or the severity of esophageal varices and the endoscopic findings. Finally, there was no statistically significant difference between the histological findings of duodenitis in the three groups of patients.