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MR imaging of the basal ganglia in chronic liver disease: correlation of T1-weighted and magnetisation transfer contrast measurements with liver dysfunction and neuropsychiatric status.

Conventional T1-weighted spin echo (T1WSE) and T1-weighted magnetization transfer (MT) images were obtained in 26 patients with biopsy-proven cirrhosis (nine Child's grade A, 10 Child's grade B and seven Child's grade C). Four subjects showed no evidence of neuropsychiatric impairment on clinical, psychometric and electrophysiological testing, seven showed evidence of subclinical hepatic encephalopathy and 15 were classified as having overt hepatic encephalopathy. Signal intensities of basal ganglia nuclei (head of caudate, putamen, globus pallidus and thalamus) and adjacent brain parenchyma were measured and contrast calculated. On T1WSE imaging, contrast measurements of the globus pallidus were significantly greater in patients with neuropsychiatric dysfunction than in those who were unimpaired (p < 0.05). This was not observed in the other basal ganglia nuclei. Patients with subclinical and overt hepatic encephalopathy could not be distinguished on the basis of contrast measurements of the globus pallidus or of any other nucleus. T1WSE contrast measurements of the globus pallidus were increased with elevations in blood ammonia levels (p < 0.05) and with the severity of liver dysfunction, when graded according to the Pugh's score (p < 0.05) Those patients with the worst liver injury (Child's grade C) had significantly greater T1WSE pallidal contrast measurements (p < 0.05) than those patients with minimal liver injury (Child's grade A). The patients with intermediate liver damage (Child's grade B) could not be distinguished from the other two groups. While MT imaging highlighted the basal ganglia and showed a correlation between globus pallidus contrast and blood ammonia levels (p < 0.05), no other relationship between MT contrast measurements and either the degree of hepatic encephalopathy or the severity of liver dysfunction was found.

Adult↗

[A case of spontaneous regression of malignant lymphoma, complicated with miliary tuberculosis, liver dysfunction and pancytopenia].

An 82-year-old woman was admitted to Iwamizawa Rosai Hospital, Cardiovascular Medicine, for detailed examination of an aneurysm of abdominal aorta. CT scan revealed marked swelling of para-aortic lymph nodes which regressed spontaneously in three months. She was re-admitted to our hospital because of general malaise and gait disturbance. Her chest X-ray on the second admission revealed miliary disseminated shadows, which were confirmed to be tuberculous granuloma by lung biopsy. She was initially well controlled with anti-tuberculosis drugs, followed by severe liver dysfunction and pancytopenia, and died of respiratory and cardiac failure. At autopsy, wide-spread malignant lymphoma and miliary tuberculosis of the lung were found. The cause of liver dysfunction was strongly suspected to be due to infiltration of the lymphoma cells to portal triads of the liver. Hemophagocytosis found in the bone marrow, spleen and liver might be consistent with clinically so-called "hemophagocytic syndrome", causing pancytopenia, associated with infection.

Aged↗

The influence of liver dysfunction on cyclosporine pharmacokinetics--a comparison between 70 per cent hepatectomy and complete bile duct ligation in dogs.

The influence of experimentally induced hepatic dysfunction on the pharmacokinetics of Cyclosporine A (CsA) was determined in dogs. The pharmacokinetics of oral (PO) and intravenous (IV) CsA were studied before and after 70 per cent hepatectomy or complete bile duct ligation (CBDL). Changes in liver function were monitored by serial measurements of serum bilirubin, and by the maximum removal rate (Rmax) and plasma disappearance rate (ICG-K) of indocyanine green (ICG). Concentrations of CsA in whole blood were measured by HPLC. Seventy per cent hepatectomy caused significant liver dysfunction: the ICG-Rmax decreased by 47.7 +/- 7.1 per cent (mean +/- SD) and the ICG-K decreased by 61.3 +/- 9.7 per cent during the first week after hepatectomy. At the same time, the systemic clearance (CLs) of IV-CsA decreased by 43.9 +/- 8.2 per cent, the area under the concentration curve (AUC) of IV-CsA increased by 35.4 +/- 20.8 per cent and the bioavailability of CsA decreased by 26.4 +/- 14.8 per cent. CBDL also induced significant liver dysfunction: the ICG-Rmax decreased by 39.1 +/- 12.8 per cent and the ICG-K decreased by 65.6 +/- 3.6 per cent in the second week after the operation. During the same period, the AUC of PO-CsA decreased by 69.9 +/- 10.7 per cent and the bioavailability of CsA also decreased markedly by 73.9 +/- 15.6 per cent. These data indicate that hepatic impairment significantly influences the pharmacokinetics of CsA, not only by the changes in intestinal absorption, but also by those in hepatic metabolism.(ABSTRACT TRUNCATED AT 250 WORDS)

Animals↗

[A case of liver dysfunction after isoflurane anesthesia].

A 72 year old female developed severe liver damage after intracranial surgery under isoflurane anesthesia. This patient showed a type of drug-induced liver dysfunction, and the result of delayed lymphocyte stimulation test was highly suggestive of isoflurane as the causative material, although influence of blood transfusion on the liver damage cannot be neglected completely.

Aged↗

A type 2 diabetic patient with liver dysfunction due to human insulin.

A 45-year-old man had been complaining of thirst and polydypsia for the last 3 months and was diagnosed as having type 2 diabetes mellitus because his fasting blood glucose showed 221 mg/dl with positive urinary ketone. He was hospitalized to a private hospital and Penfil 30R was started. However, serum gamma-GTP and aminotransferases began to elevate after insulin treatment and exceeded 1000 IU/l. Insulin was discontinued and serum gamma-GTP and aminotransferases returned close to the normal range. Since his glycemic control became poor again, Penfil 30R was restarted and serum gamma-GTP and aminotransferases elevated again. Therefore, insulin was discontinued and the patient was referred to the Third Department of Internal Medicine, Yamanashi Medical University Hospital because of liver dysfunction. His plasma glucose decreased by diet therapy, and improved further by the administration of glibenclamide. After obtaining informed consent, Humalin R was challenged. Seven days after insulin injection, serum aminotransferases began to elevate again. Lymphocyte stimulation test was negative against three preparations (Penfil R, Penfil N and Humalin R). The present case suggests that human insulin itself can cause liver dysfunction and we need to pay more attention to liver function tests when we start insulin treatment.

Alanine Transaminase↗

Doppler analysis of hepatic blood flow predicts liver dysfunction after major hepatectomy.

In 17 consecutive patients who underwent major hepatic resection, 9 of whom with combined resection of the gastrointestinal tract or the pancreatic head (or both), postoperative hepatic blood flow was investigated. In this study, the patients were classified into two groups according to their postoperative serum total bilirubin level: Group A comprised 7 patients with the level higher than 7 mg/dl for more than 1 week postoperatively, and group B comprised 10 patients who did not meet this criterion. For 2 weeks after surgery, the portal blood flow velocity, the hepatic artery resistive index (RI) calculated from the changes in Doppler frequency shifts, and the hepatic venous blood flow velocity were measured intermittently using color Doppler ultrasonography. Liver volume was assessed by computed tomography to provide the restoration. Significant differences in portal blood flow velocity and hepatic artery RI were noted between the two groups from the third postoperative day. In group A the portal blood flow velocity decreased below the preoperative value, and the hepatic artery RI increased above 0.75. In contrast, group B showed high portal blood flow velocity and low hepatic artery RI. In both groups the RI correlated significantly with the total bilirubin level (r = 0.74; p < 0.0001), and the growth rate of the remnant liver was proportional to the mean postoperative portal blood flow velocity (r = 0.70; p = 0.016). We concluded that measurement of the portal blood flow velocity and hepatic artery RI can be useful for predicting postoperative liver dysfunction and liver regeneration after major hepatic resection.

Adult↗

[Recurrent Candida sepsis with prolonged respiratory failure and severe liver dysfunction].

Systemic mycoses, especially pulmonary diseases and septicemia are observed increasingly at intensive care units. Essential risk factors for development of candidosis are the expanded use of antibiotics and immunocompromised patients, caused either as a result of a severe underlying disease or iatrogenically induced after organ transplantation. Candida albicans is the most frequent pathogen in microbiological findings. Blood cultures are only positive in massive fungemia. We report a 50-year-old patient with recurrent Candida-septicemia: rupture of the distal esophagus after dilatation because of cardiac achalasia with mediastinal emphysema and mediastinitis. Severe acute respiratory distress syndrome after aspiration with septic shock and acute renal failure at the beginning. Long-term mechanical ventilation, continuous renal replacement therapy and multifarious antibiotic therapy. Early microbiological samples of several positive blood cultures and bronchoalveolar lavages revealed the presence of Candida albicans. In the further clinical course, detection of Pseudomonas species in bronchoalveolar lavages and Staphylococci as well as Enterococci in a number of positive blood cultures. Later on development of a severe liver dysfunction with test results that showed an intrahepatic cholestasis. Because of coagulation failure commencement of artificial liver support with the MARS-system (molecule adsorbent recirculating system). Decrease of high bilirubin levels was accompanied by improvement of clinical condition of the patient. In the following course, repeated severe systemic infections with phases of septicemia or rather septic shock and detection of Candida in several positive blood cultures and bronchoalveolar lavages. In each case increasing bilirubin levels with signs of intrahepatic cholestasis and each time improvement with antimycotic therapy (voriconazol, caspofungin and fluconazol). The patient showed more and more signs of immunodeficiency in the sequel. The clinical appearance of candidosis is manifold. Systemic Candida infections are frequent in patients with immunodeficiency. A recurrent Candida septicemia with prolonged respiratory failure and severe liver dysfunction in form of cholestatic hepatosis, that improved several times with antimycotic therapy in combination with evidence based intensive care measures and artificial organ support is a comparatively rare event.

Candida↗

The temporal profile of increased transaminase levels in patients with acetaminophen-induced liver dysfunction.

STUDY OBJECTIVE: It is often taught that acetaminophen-induced liver dysfunction occurs only after a latent period of 24 to 48 hours. This study was designed to evaluate the temporal profile of transaminase levels in patients with acetaminophen-induced hepatotoxicity. DESIGN: Prospective data collection using standard poison control center data sheets. PARTICIPANTS: Hospitalized patients with acetaminophen exposure who were reported to the Long Island Poison Control Center between January 1993 and June 1994. Patients who presented within 24 hours of ingestion and in whom increased aspartate aminotransferase (AST) levels developed during hospitalization were included in the data analysis. Patients who presented more than 24 hours after ingestion, who had ingested another potentially hepatotoxic agent, or who had ingested acetaminophen over a period of more than 2 hours were excluded. RESULTS: Of 1,825 patients with reported acetaminophen exposure, 779 had potentially toxic ingestions and were examined in an emergency department. Of 291 patients with toxic acetaminophen levels who were admitted, 36 (12%) had increased levels of AST at some point during hospitalization. All received oral N-acetylcysteine within 2.5 hours of presentation. In 11 of 19 patients who met all inclusion criteria (58%), AST levels were noted to be increased in the 24 hours after ingestion. The median peak AST level was 422 IU/L (range, 74 to 8,538 IU/L). AST levels peaked within 48 hours in 4 patients (21%) and within 72 hours in 18 patients (95%). Six of eight patients with peak AST levels greater than 1,000 IU/L had increased transaminase levels during the 24 hours after acetaminophen ingestion. CONCLUSION: Acetaminophen poisoning may cause the serum transaminase level to increase during the 24 hours after ingestion.

Acetaminophen↗

[Obesity and liver dysfunction in UOEH employees--multiple regression analysis of the annual physical checkup data of 1991].

For the purpose of evaluating the significance of obesity as a risk factor toward various chronic geriatric diseases, a multiple regression analysis was performed on the annual physical checkup data of UOEH employees in 1991. The following results were obtained. (1) The average obesity index of the UOEH employees showed a progressive and significant increase in the 10 years from 1981 to 1991. (2) A close relation between the obesity index and serum GPT was recognized by elevation of the standard partial regression coefficients of serum GPT to obesity index and that of the obesity index to serum GPT when the data from all 1591 UOEH employees were analysed in one group. This finding was derived from a significant contribution of obesity to the liver dysfunction in the young male obese population under 30 years of age. (3) Systolic blood pressure was related to age rather than the obesity index, indicating that the development of hypertension is more closely related to aging than obesity. (4) No significant relation was found between the serum total cholesterol level and the obesity index in any group analysed. From the above findings, it can be suggested that the obesity in young male employees is more closely related to liver dysfunction than other abnormalities.

Adult↗

Depression of liver-specific gene expression in regenerating rat liver: a putative cause for liver dysfunction after hepatectomy.

We carried out studies on the expression of liver-specific genes during regeneration of the liver and searched for changes in the expression of oncogenes and housekeeping genes. Albumin and ornithine transcarbamylase genes were the liver-specific genes examined by Northern blot analysis, using total RNAs isolated from residual livers of Sprague-Dawley rats subjected to a 68% partial hepatectomy. The mRNA levels of both genes began to decrease 8 hr after hepatectomy, both reaching the lowest levels at 24 hr, and then recovered to some extent at 48 hr. In contrast, these levels in the housekeeping and growth-related genes were augmented during this period. This would suggest that there is a selective expression of growth-related and housekeeping genes, in preference to liver-specific genes during liver regeneration. The expression of these genes in the regenerating liver was simulated in primary cultured hepatocytes during the dedifferentiation processes. It would appear that the first step in regeneration of the residual liver is dedifferentiation, in which the depression of liver-specific genes may be linked to liver dysfunction following hepatectomy.

Animals↗

Clinicopathological study on liver dysfunction in measles.

We analyzed the clinical course of eight patients with liver dysfunction in measles. All of the patients showed an elevation of aspartate aminotransferase (AST), alanine aminotransferase (ALT) and lactate dehydrogenase (LDH), but no jaundice. These levels returned to normal about 3 weeks after the onset of the rash. A percutaneous liver biopsy was done in two cases. Histological examination showed slight necrosis of liver cells but no significant changes in portal area. On electron microscopy, virus particles were not detected. We detected measles virus RNA in the liver specimen by RT-PCR, which suggests that the measles virus affects liver cells directly in measles.

Adolescent↗

Hepatic ultrastructural changes and liver dysfunction in amyotrophic lateral sclerosis.

Ultrastructural changes of hepatocytes were studied in liver biopsy specimens obtained from 21 patients with amyotrophic lateral sclerosis (ALS). In all specimens, one or more of the following abnormal findings were made: bizarre giant mitochondria; intramitochondrial paracrystalline inclusions; disorganization of the lamellar structure of rough endoplasmic reticulum; increased numbers of smooth endoplasmic reticulum; and/or parasinusoidal fibrosis. Above all, paracrystalline inclusions appeared to be a highly specific finding in ALS. In light of the above pathologic findings, we evaluated the liver function tests of 37 patients (including the above-mentioned 21 patients) with ALS, and found a high incidence of mild liver dysfunction. In spite of its subtleness, these ultrastructural changes of hepatocytes were consistently found in such patients, and offer further insight into the intrahepatic metabolic abnormalities in ALS.

Adult↗

Liver dysfunction and steatosis in familial hypobetalipoproteinemia.

A 32-year-old man presented with increases in serum alanine aminotransferase activity, iron concentration, and transferrin saturation, suggestive of hepatic dysfunction and iron overload. In addition, he had unusually low plasma concentrations of LDL-cholesterol and apolipoprotein (apo) B. Hepatic ultrasonography was consistent with fatty liver. On liver biopsy, marked steatosis and moderate to marked iron deposition were observed. The patient was found to carry the HFE C282Y and H63D mutations, which are associated with hereditary hemochromatosis, and the alpha(1)-antitrypsin PiZ variant. An immunoblot of plasma for apoB showed the presence of a truncated apoB species, indicative of familial hypobetalipoproteinemia. DNA sequence analysis revealed that the patient was heterozygous for the apoB-80.5 (c.11040T>G) mutation. This unique case shows an unusual combination of underlying disorders that could all be contributing to liver dysfunction and fatty liver.

Adult↗

Serum osteopontin levels in patients with acute liver dysfunction.

OBJECTIVE: Fulminant hepatic failure (FHF) is a clinical syndrome of sudden and severe liver dysfunction accompanied by encephalopathy in a previously healthy person. In FHF, hepatocytes are severely damaged and ordinary liver regeneration is impaired. We demonstrated that the expression of osteopontin (OPN), a multifunctional cytokine, was up-regulated in mouse oval cell (a stem-cell progenitor) induction models. MATERIAL AND METHODS: Based on this finding, serum OPN levels were examined in 43 patients with FHF and in 45 patients with acute self-limited hepatitis (AH). To determine the cellular source of OPN, the expression of OPN was studied in a liver specimen derived from an FHF patient. RESULTS: The mean OPN level of patients with FHF was 2.80+/-0.48 ng/ml (log(10), +/-SD), which was significantly higher than that of the patients with AH (2.42+/-0.39 ng/ml) (p=0.003, unpaired t-test). Patients with elevated serum OPN levels had a significantly poorer prognosis than patients whose serum OPN levels were not elevated. In the FHF patient's liver, OPN protein was expressed not only in inflammatory cells but also in regenerating hepatocytes and bile ductular structures. CONCLUSIONS: Our current study indicates that serum OPN levels increased in patients with FHF and that OPN might play an important role in liver regeneration due to activation of hepatic stem cells.

Acute Disease↗

Congenital tuberculosis presenting as progressive liver dysfunction.

We report a case of congenital tuberculosis with an unusual presentation as progressive liver dysfunction, in the absence of respiratory symptoms. Several uncommon features were present, including petechiae, cutaneous lesions, ascites and positive peritoneal fluid culture.

Antitubercular Agents↗

Gastric endoscopic features in patients with liver cirrhosis: correlation with esophageal varices, intra-variceal pressure, and liver dysfunction.

This study was aimed at evaluating the gastric endoscopic features in patients with liver cirrhosis and at assessing whether endoscopic findings correlated with the severity of portal hypertension and of the underlying liver disease. We studied 394 cirrhotic patients and 110 controls. Prevalence of a mosaic-like pattern of the gastric mucosa was significantly higher in cirrhotics than controls (80.5 vs. 0.9%; p < 0.001). Red spots of the gastric mucosa were found in 8.1% of cirrhotic patients and in none of the control subjects. Erosions and petechiae were found in 14.5 and 5.4% of the control population, but their prevalence was significantly higher in cirrhotics (28.7 and 12.7%, respectively; p < 0.05). Severity of the mosaic-like pattern as well as the presence of red spots were closely related to the size and hemorrhagic risk of esophageal varices and to the presence of fundic varices. Also, severe mosaic-like patterns were found more frequently in patients with severe impairment of liver function, as assessed by the Child-Pugh's criteria. Furthermore, the mosaic-like pattern was more severe in cirrhotic patients with a higher degree of portal hypertension as indirectly assessed by measurement of esophageal intravariceal pressure. In conclusion, (1) a mosaic-like pattern and red spots of the gastric mucosa are the only specific signs of congestive gastropathy in liver cirrhosis, and (2) the severity of the mosaic-like pattern correlates with the severity of liver dysfunction and of portal hypertension.

Adult↗

[Clinical effect of prostaglandin E1 on liver dysfunction due to high-dose methotrexate].

The effect of prostaglandin E1 (PGE1) on liver dysfunction due to high-dose methotrexate (HD-MTX) was investigated in children with malignant diseases. Eight children received 45 doses of HD-MTX. Group 1 (33 cases) received no PGE1. Group 2 (4 cases) received PGE1 intravenously 8 times every 12 hours for 3 consecutive days. Group 3 (8 cases) received infusion of PGE1 continuously for 4 days (1 day before and 3 consecutive days after MTX infusion). No significant difference was observed among the serum levels of transaminase in these 3 groups as well as the corresponding levels in the same patients who were treated with or without PGE1. There are reports suggesting that in spite of the lack of any difference in serum transaminase levels in rats with drug-induced hepatic injury given PGE1 infusion, data on DNA synthesis and survival ratio indicate the existence of 'hepatocytoprotection'. Further investigation will be necessary in order to decide whether PGE1 infusion is indeed effective.

Alprostadil↗

Adverse outcome following transfemoral endovascular stent-graft repair of an abdominal aortic aneurysm in a patient with severe liver dysfunction: report of a case.

We describe herein the case of a patient with severe liver failure in whom an abdominal aortic aneurysm (AAA) extending to the right iliac artery was diagnosed. Because the risk of performing a standard open repair was considered too high in this patient, the aneurysm was uneventfully repaired using a technique of transfemoral endovascular stent-grafting with femorofemoral bypass and occlusion of the left common and right internal iliac arteries. Unfortunately, multiorgan failure associated with adult respiratory distress syndrome (ARDS) and disseminated intravascular coagulation (DIC) suddenly developed on postoperative day (POD) 2 and the patient died on POD 9. Thus, although endovascular stent-grafting is generally assumed to be less invasive and therefore feasible for high-risk patients, patients with severe liver dysfunction may not be suitable candidates.

Aged↗