Lege Artis Medicinae

[The resuscitation of CPR]

MATOS Lajos

NOVEMBER 20, 2007

Lege Artis Medicinae - 2007;17(11)

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[The 17th Congress of the European Respiratory Society]

BALIKÓ Zoltán

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[Gastrolienalis fistula caused by acute pancreatitis]

CZAKÓ László, GÉCZI Tibor, LEINDLER László, FARKAS Gyula, TISZLAVICZ László, LONOVICS János

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[What’s behind a pathological liver finding]

GASZTONYI Beáta

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[Surgical aspects of the gastrointestinal diseases]

JAKAB Ferenc

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[OUR EXPERIENCE WITH COMBINED ANTIVIRAL TREATMENT IN PATIENTS WITH CHRONIC HEPATITIS C WITH PERSISTENTLY NORMAL ALANINE AMINOTRANSFERASE LEVELS]

HORVÁTH Gábor, TOLVAJ Gyula, HALÁSZ Tünde, STOTZ Gyula

[INTRODUCTION - Persistently normal alanine aminotransferase levels, which occur in a fraction of patients chronically infected with hepatitis C virus, do not rule out the presence of chronic hepatitis C, even of that with advanced inflammation and fibrosis. Here we report our results of the treatment of these patients. PATIENTS AND METHODS - Patients with histologically confirmed chronic hepatitis C received combined antiviral treatment with pegylated interferon (alfa-2a 1×180 μg/week or alfa-2b 1×1.5 μg/kg/week) and ribavirin (800- 1200 mg/day) for 48-52 weeks. The alanineaminotransferase levels of 21 patients (14 females, 7 males, age: 20-54, mean 38 years) did not reach the upper limit of normal (40 U/l) during the period of observation (≥6 months). There were 19 and 2 cases with hepatitis C virus genotype 1b and 3, respectively. The patients' hepatitis activity index was 3.7 1.75, fibrosis score: 0.9 0.64, baseline viral titer: 1.18 1.12×106 IU/ml, alanine-aminotransferase level: 33.51 7.2 U/l. The last 100 unselected patients with elevated alanine-aminotransferase levels enrolled in treatment for chronic hepatitis C and who were followed for at least 6 months served as the control group with the following parameters: 41 females and 59 males (age: 18- 65, mean: 45.65 years), viral genotypes: 98 and 2 cases of type 1 and 3, respectively, hepatitis activity index: 5.44±4.03, stage: 1.29±1.00, baseline viral titer: 4.13±6.25×106 IU/ml. RESULTS - In the study group, all patients were hepatitis C virus RNA negative at the end of the treatment and with one exception remained so by the end of the 6-month follow-up period (20/21), while the sustained virologic response was 36% in the control group. The pretreatment normal alanine aminotransferase level decreased significantly (15.26 4.9 vs 33.51 7.2 U/l, p<0.001) by the end of the treatment, and remained at this level during the follow-up in all except one relapse case. CONCLUSION - The efficacy of the combined antiviral treatment is high in patients with persistently normal alanine aminotransferase levels, possibly due to the relatively younger age, the higher proportion of females, the lower baseline viral titer, and the less advanced liver disease (lower inflammatory activity and less or absent fibrosis) observed in this group. Combined antiviral treatment is recommended for patients with histologically confirmed chronic hepatitis C with normal alanine aminotransferase levels, even with mild inflammatory activity and minimal or absent fibrosis in the liver tissue. The previous suggestions based on published evidence to revise the upper limit of the normal range of alanine aminotransferase level are supported by the results of this study.]

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[Venous congestion can result in dysfunction of several organs. Although experimental data on renal dysfunction caused by venous congestion were already published about 90 years ago, those were difficult to extrapolate to humans, due to significant interracial differences. Acute pre-renal, or volume-sensitive kidney injury might respond to volume replacement; however, overt fluid resuscitation with or without right ventricular dysfunction can result in elevated central venous pressure. The glomerular capillary blood pressure, i. e. net filtration pressure in a single glomerulus is about 10 mmHg. Kidney dysfunction can both increase intra-abdominal pressure or elevate central venous pressure with or without decreased mean arterial pressure, can lead to renal dysfunction. In studies among patients with heart failure, or after cardiac or abdominal surgery, the increase of central venous pressure or intra-abdominal pressure above 8 mmHg resulted in impaired kidney function. This review summarizes both pre-clinical and clinical data on the role of intra-abdominal hypertension and venous congestion in the development of acute kidney injury.]

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