Mean platelet volume and mortality in patients with alcohol use disorder.

Several recent studies have pointed out the relationship of platelet size with increased mortality or adverse clinical course. Most studies show that increased mean platelet volume (MPV) may be associated with a deleterious outcome in different settings such as sepsis or neoplasia, whereas other researchers have found the opposite. In inflammatory conditions there is an altered secretion of several cytokines, some of them exerting a marked influence on platelet biogenesis and/or on platelet activation and aggregation. Alcohol use disorder is a chronic situation characterized by a protracted low-grade inflammation. In this study we analyze the relationship between proinflammatory cytokines and MPV and their relationships with mortality in patients with alcohol abuse. We determined serum levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6 and IL-8 and routine laboratory variables among 184 patients with alcohol use disorder admitted to our hospital and followed-up for a median of 42 months. We found that MPV was inversely related to TNF-α (ρ=-0.34), and directly to IL-8 (ρ=0.32, p<0.001 in both cases) and to IL-6 (ρ=0.15; p = 0.046). Reduced MPV was related both with short-term (<6 months) and long-term mortality. Conclusion: These results suggest that inflammatory cytokines are strongly related to MPV. A low MPV is associated with a poor prognosis among patients with alcohol use disorder.

Sclerostin, vascular risk factors, and brain atrophy in excessive drinkers.

Objective: Heavy alcohol consumption causes several organic complications, including vessel wall calcification. Vascular damage may be involved in the development of brain atrophy and cognitive impairment. Recently, sclerostin (whose levels may be altered in alcoholics) has emerged as a major vascular risk factor. The objective of the present study is to analyze the prevalence of vascular calcifications in alcoholics, and the relationships of these lesions with brain atrophy, as well as the role of sclerostin on these alterations. Patients and methods: A total of 299 heavy drinkers and 32 controls were included. Patients underwent cranial computed tomography, and several indices related to brain atrophy were calculated. In addition, patients and controls underwent plain radiography and were evaluated for the presence or absence of vascular calcium deposits, cardiovascular risk factors, liver function, alcohol intake, serum sclerostin, and routine laboratory variables. Results: A total of 145 (48.47%) patients showed vascular calcium deposits, a proportion significantly higher than that observed in controls (χ2 = 16.31; p < 0.001). Vascular calcium deposits were associated with age (t = 6.57; p < 0.001), hypertension (t = 5.49; p < 0.001), daily ethanol ingestion (Z = 2.18; p = 0.029), duration of alcohol consumption (Z = 3.03; p = 0.002), obesity (χ2 = 4.65; p = 0.031), total cholesterol (Z = 2.04; p = 0.041), triglycerides (Z = 2.05; p = 0.04), and sclerostin levels (Z = 2.64; p = 0.008). Calcium deposits were significantly related to Bifrontal index (Z = 2.20; p = 0.028) and Evans index (Z = 2.25; p = 0.025). Serum sclerostin levels were related to subcortical brain atrophy, assessed by cella media index (Z = 2.43; p = 0.015) and Huckmann index (ρ = 0.204; p = 0.024). Logistic regression analyses disclosed that sclerostin was the only variable independently related to brain atrophy assessed by altered cella media index. Sclerostin was also related to the presence of vascular calcifications, although this relationship was displaced by age if this variable was also included. Conclusion: Prevalence of vascular calcification in alcoholics is very high. Vascular calcium deposits are related to brain atrophy. Serum sclerostin is strongly related to brain shrinkage and also shows a significant relationship with vascular calcifications, only displaced by advanced age.

Ferritin and liver fibrosis among patients with chronic hepatitis C virus infection.

INTRODUCTION: In chronic hepatitis C virus (HCV) infection there is increased iron absorption leading to iron overload, a fact that may promote ferritin synthesis. Theoretically, increased ferritin should promote ongoing liver fibrosis but disparate results have been described. OBJECTIVE: We analyze the behavior of iron metabolism- related variables, comparing them with fibrosis and inflammatory activity in liver biopsy in HCV infected patients. PATIENTS AND METHODS: We analyzed among 90 HCV patients subjected to liver biopsy prior to antiviral treatment the relationships of serum levels of iron, ferritin, transferrin, transferrin saturation index (TSI) and total iron binding capacity (TIBC) with liver fibrosis and histological severity, assessed by Metavir-f, Metavir-a and Knodell indices, as well as with liver function, and also compared the aforementioned iron metabolism- related variables with 34 controls. RESULTS: Patients showed higher values of sideremia (T = 2.04; p = 0.044) and transferrin (T = 2.29; p = 0.004) compared with controls; but not ferritin, that was significantly higher among the 33 patients who also consumed alcohol (Z = 2.05; p = 0.041). Most patients showed a well preserved liver function (86 cases, Child A). Patients with Child B or C showed higher ferritin levels (Z = 2.68; p = 0.007) and TSI (Z = 2.41; p = 0.016), but lower transferrin and TIBC (Z = 3.25; p = 0.001) than Child A patients. Transferrin and TIBC were directly related to albumin (ρ = 0.24; p = 0.026), whereas bilirubin showed direct relationships with iron (ρ = 0.25; p = 0.016), TSI (ρ = 0.39; p < 0.001) and ferritin (ρ = 0.36; p < 0.001). Both ferritin (ρ = -0.22; p = 0.04) and TSI (ρ = -0.25; p = 0.016) were related to platelet count. No relationships were observed between iron variables and Knodell index, but serum iron, serum transferrin, and TSI were directly related to Metavir-f score (ρ = 0.28; p = 0.009, ρ = 0.22; p = 0.044, and ρ = 0.22; p = 0.044, in this order). CONCLUSION: Alterations of iron related variables are relatively subtle in our series of 90 well compensated HCV patients. Serum ferritin was not related to liver fibrosis and increases only when alcoholism co-exists with HCV infection.

Incidence of cancer and mortality among heavy alcoholics.

BACKGROUND AND AIMS: Cancer risk is increased in alcoholics. Heavy ethanol consumption is also associated with other potentially lethal conditions such as cirrhosis, diabetes, hypertension, dyslipidemia or malnutrition, that increase mortality. The aim of the present study is to analyze the impact on mortality of new cancer development in a cohort of heavy alcoholics. METHODS: Three hundred and thirty nine heavy alcoholics (about 200 g ethanol/daily during more than 15 years), initially admitted for organic problems to our service (reference hospital) were prospectively followed up for a maximum period of 120 months (median = 26, interquartile range = 12-60 months), either as outpatients or during successive admissions. Clinical and laboratory evaluation including incidence of new cancer and drinking habits were recorded at each appointment, as well as mortality. RESULTS: During the study period 57 patients developed cancer and 151 died. Only 75 did not relapse in alcohol drinking. Mortality was related to deranged liver function, relapse of alcohol drinking, and malnutrition, whereas age, the development of new cancer, or the presence of diabetes, dyslipidemia or hypertension did not influence on mortality, especially in cirrhotics and among those who did not quit drinking. Cancer was related to mortality only among non-cirrhotics, together with ethanol abstention and age. CONCLUSIONS: Heavy drinking is associated with high mortality among alcoholic patients admitted to the hospital. If a patient is already cirrhotic or if there is drinking relapse, the development of a new cancer, the concurrent presence of diabetes, hypertension, dyslipidemia, or advanced age have no impact on survival. Mortality is only related to deranged liver function, relapse of alcohol drinking, and malnutrition.

Prognostic Value of Serum Iron, Ferritin, and Transferrin in Chronic Alcoholic Liver Disease.

Ethanol increases iron absorption. Therefore, increased amount of iron reaches the liver, and exerts pro-oxidant effects and stimulates ferritin synthesis and hepatic stellate cell activation, promoting fibrosis and inflammation. These mechanisms would theoretically support a role of ferritin as a marker of the transition to liver cirrhosis, and, consequently, as a prognostic factor, but there is controversy regarding its behavior in alcoholics. We analyzed among 238 severe alcoholics the prognostic value of iron, ferritin, transferrin, transferrin saturation index (TSI) and total iron binding capacity (TIBC), and the relationships of these variables with liver function, proinflammatory markers (C-reactive protein (CRP), interleukin (IL)-6, IL-8, and tumor necrosis factor α), and the presence of cirrhosis. Patients showed higher serum ferritin (Z = 2.50, p = 0.031) but lower transferrin (t(264) = 4.81, p < 0.001), TIBC (t(262) = 4.44, p < 0.001), and iron (Z = 3.19, p = 0.001) values compared with 32 age- and sex-matched controls. Ferritin was related to inflammatory cytokines such as IL-8 (ρ = 0.18, p = 0.012) and to IL-6 (ρ = 0.16, p = 0.016), but not to liver function. On the contrary, cirrhotics showed lower transferrin (t(234) = 4.77, p < 0.001) and TIBC (t(232) = 4.67, p < 0.001), but higher TSI (Z = 3.35, p < 0.001) than non-cirrhotics. Transferrin, TSI, and TIBC were related to liver function impairment (marked differences among the Child's groups regarding transferrin (KW (2) = 22.83, p < 0.001), TSI (KW (2) = 15.81, p < 0.001), and TIBC (KW (2) = 21.38, p < 0.001) but only weakly to inflammation (inverse relationships between IL-6 and total iron (ρ = - 0.16, p = 0.017), TIBC (ρ = - 0.20, p = 0.002), and transferrin (ρ = - 0.20, p = 0.003). In accordance, albumin, IL-6, alcohol quitting, and TSI, in this order, were independently related to mortality, but not ferritin or iron.

Lipid profile and bone mineral density in heavy alcoholics.

BACKGROUND & AIMS: Some studies have illustrated the association between serum lipid profile and bone mineral density (BMD) or fractures. None of these studies was performed among alcoholics, despite the fact that alcoholism may affect both bone mass and lipid metabolism. We here analyse the relationship of serum lipid profile with bone mass among a population of 280 heavy alcoholics (29 women). METHODS: patients underwent a densitometric assessment of BMD and determination of a serum lipid panel. Castelli index (Total cholesterol/HDL cholesterol) and the LDL/HDL cholesterol index were calculated. RESULTS: There was a direct correlation between both total cholesterol and LDL-cholesterol and femoral neck (r = 0.17 and r = 0.20, respectively) and lumbar spine (r = 0.16 and r = 0.20) T score, total BMD (r = 0.14 and r = 0.18) or pelvis BMD (r = 0.16 and r = 0.23; p < 0.025 in all cases). HDL-cholesterol showed no relationship with BMD. Serum triglycerides were also directly related to T score at the lumbar spine (ρ = 0.13; p = 0.032) and pelvis BMD (ρ = 0.13; p = 0.037). Pelvis BMD was significantly related to Castelli index (ρ = 0.15) and LDL/HDL index (ρ = 0.18; p < 0.015 in both cases). Multivariate analysis showed that the association between the serum lipid panel and BMD was independent of liver function and body mass index. CONCLUSIONS: Therefore, BMD was directly related to total cholesterol and LDL cholesterol in heavy alcoholism. This counter intuitive observation adds to others derived from several similar studies conducted in different population groups but not in alcoholics as of yet. The mechanisms that explain the association between serum lipids and bone metabolism need further investigation.

Alpha Klotho and Fibroblast Growth Factor-23 Among Alcoholics.

AIMS: Alcoholism may be a cardiovascular risk factor. Osteocyte derived molecules such as fibroblast growth factor 23 (FGF-23) and soluble α Klotho have recently been associated with cardiovascular disease, but their role in alcoholics is unknown. We here analyze the behavior of FGF23 and α Klotho in alcoholics. METHODS: Ninety-seven alcoholic patients were assessed for liver function, presence of hypertension, diabetes, atrial fibrillation, left ventricular hypertrophy (LVH), vascular calcifications (assessed by chest X-ray) and nutritional status (lean and fat mass measured by densitometry). We measured plasma levels of FGF-23 and serum soluble α Klotho, using ELISA in 97 patients and 20 age- and sex-matched controls. RESULTS: FGF-23 levels were higher in patients than in controls (Z = 3.50; P < 0.001). FGF-23 (Z = 5.03; P < 0.001) and soluble α Klotho (Z = 5.61; P < 0.001) were higher in cirrhotics, and both were related to liver function, independently of serum creatinine FGF-23 levels were higher among alcoholics with diabetes (Z = 2.55; P = 0.011) or hypertension (Z = 2.56; P = 0.01), and increased body fat (ρ = 0.28; P = 0.022 for trunk fat), whereas α Klotho levels were higher in patients with LVH (Z = 2.17; P = 0.03) or atrial fibrillation (Z = 2.34; P = 0.019). CONCLUSIONS: FGF-23 was higher in alcoholics than in controls, especially among cirrhotics, and soluble α Klotho levels were also higher among cirrhotics. Both were related to liver function impairment, independently of serum creatinine levels, and also showed significant associations with vascular risk factors, such as hypertension, diabetes or trunk fat amount in the case of FGF-23, or LVH or atrial fibrillation in the case of α Klotho. SHORT SUMMARY: We report increased values of fibroblast growth factor 23 (FGF-23) and soluble α Klotho in cirrhotic alcoholics. Both molecules are associated with liver function impairment, and with some cardiovascular risk factors such as diabetes, hypertension, increased body fat, left ventricular hypertrophy and atrial fibrillation independently of serum creatinine.

Liver steatosis in hepatitis C patients.

There is controversy regarding some aspects of hepatitis C virus (HCV) infection-associated liver steatosis, and their relationship with body fat stores. It has classically been found that HCV, especially genotype 3, exerts direct metabolic effects which lead to liver steatosis. This supports the existence of a so called viral steatosis and a metabolic steatosis, which would affect HCV patients who are also obese or diabetics. In fact, several genotypes exert metabolic effects which overlap with some of those observed in the metabolic syndrome. In this review we will analyse the pathogenic pathways involved in the development of steatosis in HCV patients. Several cytokines and adipokines also become activated and are involved in "pure" steatosic effects, in addition to inflammation. They are probably responsible for the evolution of simple steatosis to steatohepatitis, making it difficult to explain why such alterations only affect a proportion of steatosic patients.

Vitamin D, vascular calcification and mortality among alcoholics.

AIMS: To analyze the relationship between low vitamin D levels and mortality among alcoholics. METHODS: One hundred twenty-eight alcoholic patients admitted to our hospital were followed up as outpatients. Nutritional status was evaluated measuring percentages of fat and lean mass in different body compartments. RESULTS: Lower vitamin D levels were observed in patients with worse liver function. Vitamin D was lower in patients with lower total lean mass (Z = 2.8, P = 0.005), but it was not related to fat mass. There was a significant trend to higher long-term mortality among non-cirrhotics with vitamin D levels below 30 ng/ml, although Cox's regression model revealed that only Child score and age were independently related to mortality. CONCLUSION: Vitamin D deficiency is common among alcoholic patients and is associated with low lean mass and liver dysfunction. Among non-cirrhotics, serum vitamin D levels below 30 ng/ml are associated with a greater long-term mortality.

Interleukin-15 and other myokines in chronic alcoholics.

AIMS: Interleukin (IL)-15 is highly expressed in skeletal muscle, where it exerts anabolic effects, increasing protein content in muscle fibres and promoting muscle growth. Alcoholics frequently suffer myopathy. Therefore, we analyse the behaviour of IL-15 (and other myokines, such as IL-6, IL-8 and tumour necrosis factor α (TNF-α)) in alcoholics. METHODS: These myokines and also malondialdehyde (MDA)--a lipid peroxidation product--were determined by radioimmunoanalytic techniques in blood samples of 35 chronic alcoholics and 13 age- and sex-matched controls, and compared with body composition, nutritional status, liver function, amount of ethanol and routine biochemical variables. RESULTS: IL-15, IL-6, TNF-α, IL-8 and MDA were all higher in alcoholics than in controls; MDA and IL-6 were clearly related with liver function impairment and short-term prognosis, whereas IL-15 was higher among those who died and was related to serum bilirubin. No relation was found between IL-15 and lean mass. CONCLUSION: IL-15 levels were higher in alcoholics than in controls, especially among those who died within 18 months after admission. They are not related with muscle mass, intensity of alcoholism or nutritional status, but only with serum bilirubin. IL-6 showed inverse correlations with liver function, intensity of alcoholism, nutritional status, left arm muscle mass and short-term mortality.

Factors involved in the paradox of reverse epidemiology.

BACKGROUND & AIMS: The hypothesis of reverse epidemiology holds that some cardiovascular risk factors, such as obesity, hypercholesterolemia and hypertension, in the elderly or in some chronic diseases are not harmful but permit better survival. However, this phenomenon is controversial and the underlying reasons are poorly understood. OBJECTIVE: To search for factors simultaneously linked to reverse epidemiology and to short or long term survival. METHODS: We included 400 patients, older than 60 years, hospitalized in a general internal medicine unit; 61 died in hospital and 338 were followed up by telephone. RESULTS: Obesity, higher blood pressure and serum cholesterol, besides being related to lower mortality both in hospital and after discharge, were associated with better nutrition and functional capacity, less intense acute phase reaction and organ dysfunction, and lower incidence of high-mortality diseases such as dementia, pneumonia, sepsis or cancer. These associations may explain why obesity and other reverse epidemiology data are inversely related to mortality. Weight loss was related to mortality independently of BMI. Patients with BMI under 30 kg/m(2) who died in hospital showed more weight loss than those who survived; the lower the BMI, the greater the weight loss. In contrast, patients with BMI over 30 kg/m(2) who died in hospital gained more weight than those who survived; the higher the BMI, the greater the weight gain. CONCLUSION: In patients over 60 years of age admitted to an internal medicine ward, obesity did not show independent survival value, being displaced by other nutritional parameters, functional capacity, acute phase reaction, organ dysfunction and diseases with poor prognosis.

Factores de riesgo vascular y enfermedad obstructiva microvascular de la retina / Vascular risk factors and retinal occlusive disease

Fundamento y objetivo: Nuestro objetivo fue caracterizar el perfil de factores de riesgo vascular que presentan diferentes enfermedades vasculares oclusivas de la retina, como son la trombosis venosa, la embolia arterial y la neuropatía óptica isquémica anterior (NOIA). Para eso estudiamos a los pacientes que diagnosticó el servicio de oftalmología sobre la base de criterios clínicos, funduscópicos y angiográficos. Pacientes y método: Estudio transversal de 284 sujetos con enfermedades vasculares de la retina entre 25–93 años de edad a los que se seleccionó consecutivamente en la consulta de oftalmología y que se remitieron a la consulta de medicina interna. Resultados: De 284 pacientes, el 52 % eran varones y el 48 % eran mujeres, con una edad media (DE) de 62 (12) años (intervalo: 25–93 años). La trombosis venosa retiniana era la enfermedad más frecuente, con un 66 % (intervalo de confianza [IC] del 95%: 60,4–71,5), seguida de la NOIA, con un 21% (IC del 95%: 16,1–25,8) y la embolia arterial, con un 11% (IC del 95 %: 7,29–14,7). En conjunto, presentaban alta prevalencia de antecedentes de factores de riesgo vascular, sobre todo hipertensión arterial, en un 50 % (IC del 95%: 44,0–55,9), y síndrome metabólico en un 39% (IC del 95%: 33,2–44,7). Individualmente, la trombosis venosa retiniana se asoció a hipertensión arterial con hipertrofia ventricular izquierda en el 54% (p<0,009), y fue significativa (p<0,01) en la trombosis central respecto a las trombosis de ramas. Los enfermos con embolia arterial tenían menos sobrepeso y obesidad (p<0,04), pero presentaban significativamente (p<0,001) soplos vasculares y placas aterosclerosas en carótidas, así como enfermedad vascular extraocular. La NOIA va asociado a obesidad, sobrepeso y diabetes. No existían diferencias significativas en los marcadores inflamatorios (proteína C reactiva, factor de necrosis tumoral alfa, interleucina 6 e interleucina 10) en las diversas enfermedades retinianas (AU)

Background and objective: The aim of the present study is to define the risk factors associated with different retinal occlusive diseases, such as retinal venous thrombosis, arterial emboli and ischaemic anterior optic neuritis. Patients with any of these entities entered the study. Patients and method: A cross-sectional study on 284 consecutive subjects, aged 25–93, who were initially attended at the ophthalmology unit and then sent to the internal medicine unit. Results: We included 284 patients, 52% men, 48% women, aged 62±12 years (range 25–93). Retinal vein thrombosis was observed in 66% (IC 95%: 60.4–71,5), followed by anterior ischemic optic neuropathy in 21% (IC 95%: 16, 1–25,8) and arterial embolism in 11% (IC 95 %: 7,29–14,7). Vascular risk factors were frequently recorded, especially hypertension in 50% (IC 95%: 44, 0–55,9) and metabolic syndrome in 39% (IC 95%: 33,2–44,7). Venous thrombosis showed an association with hypertension and with left ventricular hypertrophy, especially central vein thrombosis (54%, p<0.009). Among those with arterial embolism obesity was less frequently observed (p=0.04), but these patients showed significantly (p<0.001) more vascular bruits, carotideal atheromatous plaques and extraocular vascular disease. Anterior optic ischaemic neuritis was significantly associated with obesity, overweight, and diabetes. No differences were observed regarding inflammatory markers (CRP, TNF alpha, IL-6 and IL-10) among the different retinal occlusive diseases analysed. Conclusions: Occlusive retinal diseases are associated with vascular risk factors, but the association is specific for each entity (AU)

[Vascular risk factors and retinal occlusive disease]. / Factores de riesgo vascular y enfermedad obstructiva microvascular de la retina.

BACKGROUND AND OBJECTIVE: The aim of the present study is to define the risk factors associated with different retinal occlusive diseases, such as retinal venous thrombosis, arterial emboli and ischaemic anterior optic neuritis. Patients with any of these entities entered the study. PATIENTS AND METHOD: A cross-sectional study on 284 consecutive subjects, aged 25-93, who were initially attended at the ophthalmology unit and then sent to the internal medicine unit. RESULTS: We included 284 patients, 52% men, 48% women, aged 62+/-12 years (range 25-93). Retinal vein thrombosis was observed in 66% (IC 95%: 60.4-71.5), followed by anterior ischemic optic neuropathy in 21% (IC 95%: 16.1-25.8) and arterial embolism in 11% (IC 95 %: 7.29-14.7). Vascular risk factors were frequently recorded, especially hypertension in 50% (IC 95%: 44. 0-55.9) and metabolic syndrome in 39% (IC 95%: 33.2-44.7). Venous thrombosis showed an association with hypertension and with left ventricular hypertrophy, especially central vein thrombosis (54%, p<0.009). Among those with arterial embolism obesity was less frequently observed (p=0.04), but these patients showed significantly (p<0.001) more vascular bruits, carotideal atheromatous plaques and extraocular vascular disease. Anterior optic ischaemic neuritis was significantly associated with obesity, overweight, and diabetes. No differences were observed regarding inflammatory markers (CRP, TNF alpha, IL-6 and IL-10) among the different retinal occlusive diseases analysed. CONCLUSIONS: Occlusive retinal diseases are associated with vascular risk factors, but the association is specific for each entity.

Pro-inflammatory cytokines in stable chronic alcoholics: relationship with fat and lean mass.

Cytokines are mediators of the inflammatory response, secreted by many tissues, including adipocytes. Chronic alcoholic liver disease and alcoholic hepatitis are associated with elevated serum cytokine levels which yield prognostic value in this situation. Most studies have been performed in patients with acute alcoholic hepatitis. However, cytokine alterations in stable alcoholics have been less studied, as is also the case for the relationship between cytokines and fat and lean mass in these patients. The aim of the present study was to analyse the relationships between some proinflammatory serum cytokine levels and lean mass, fat mass, nutritional status, and liver function parameters in stable alcoholic patients. We determined serum TNF-alpha, interleukin (IL)-6, IL-8 and TNF receptor 2 (TNFr2) in 77 male alcoholic patients in a stable phase (before hospital discharge). In all patients we performed a total-body composition analysis (Hologic DEXA), nutritional assessment including body mass index, triceps skinfold, brachial perimeter, and assessment of liver function. Forty-two healthy volunteer health workers served as controls. IL-8, TNF-alpha and TNFr2 were significantly higher in patients than in controls. No differences were observed between patients and controls regarding fat mass, but alcoholics showed significantly decreased lean mass than controls. Only IL-6 was significantly related with body fat in patients with elevated IL-6 levels. Poor relationships were observed between lean mass and cytokines; some nutritional parameters showed inverse relationships with serum TNF, whereas TNF and IL-8 were inversely related with albumin and prothrombin activity. Thus, cytokine levels were elevated in stable alcoholic patients, and IL-6 levels showed significant correlation with body fat mass, raising the possibility that adipose tissue contributes to the persistence of high levels of cytokines in stable alcoholics.

Eficacia del tratamiento antirretroviral en pacientes con infección por el virus de la inmunodeficiencia humana. Estudio de 807 pacientes / Impact of new antiretroviral combination therapies on human immunodeficiency virus in infected patients. Study of 807 patients

Fundamento: La historia natural de la infección por el virus de la inmunodeficiencia humana (VIH), así como el espectro de enfermedades asociadas a ésta, se han modificado a raíz de la utilización del tratamiento antirretroviral combinado. Realizamos este estudio para analizar en nuestro centro la historia natural de la infección por VIH en relación con los avances terapéuticos que se han desarrollado desde el inicio de la epidemia. Pacientes y métodos: Revisamos las historias clínicas de los 807 pacientes adultos con infección por el VIH atendidos en el Hospital Universitario de Canarias (HUC) entre 1985 y 1999. Resultados: La incidencia de la mayoría de infecciones oportunistas, casos de sida, ingresos y fallecimientos disminuyó a partir del año 1997. Los pacientes que iniciaron tratamiento antirretroviral de alta eficacia (HAART) desarrollaron un menor número de casos de sida, y tuvieron un menor número de ingresos y de fallecimientos que los que recibieron otras modalidades de tratamiento. La supervivencia de los pacientes que iniciaron tratamiento con HAART o llegaron a recibir HAART a lo largo de la evolución fue mejor que los que recibieron otras modalidades de tratamiento (p < 0,001), independientemente del grado de inmunodepresión y del diagnóstico de sida. En el análisis multivariado, la terapia HAART resultó ser el mejor factor de protección al disminuir el riesgo de fallecer (p < 0,001). Conclusiones: El uso de la terapia combinada de alta eficacia produce un marcado beneficio en la supervivencia de los pacientes con infección por el VIH independientemente del grado de inmunodepresión. Así mismo, retrasa la progresión de la infección por el VIH, y disminuye el número de casos de sida, los ingresos y las muertes. (AU)

Endocarditis por Gemella morbillorum / Endocarditis due to Gemella morbillorum

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