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[Percutaneous ultrasound-controlled drainage of liver abscesses].

By means of 20 liver abscesses in fourteen patients it is described how percutaneous drainage of abscesses can be applied. Method, technique, indications, contraindications as well as possible complications of this procedure are described and illustrated in four cases. In addition both principal differences and common features of percutaneous sonographic drainage and incision of the abscess are described. It is also stated which method is to be preferred in the individual case.

Adult↗

Extended-spectrum cephalosporin compared to cefazolin for treatment of Klebsiella pneumoniae-caused liver abscess.

From January 1995 to May 2000, a total of 107 adults with liver abscess due to Klebsiella pneumoniae admitted at a large medical center in northern Taiwan were reviewed. Patients were considered to have received cefazolin or an extended-spectrum cephalosporin if they received at least 3 days of that antibiotic within the first 5 days of hospitalization. Fifty-nine (55.1%) patients received cefazolin, and 48 (44.9%) patients received an extended-spectrum cephalosporin. The demographic data, clinical features, severities of illness, and rates of early drainage for the two groups were comparable. However, the rates of developing complications for the two groups were significantly different (37.3 versus 6.3%, respectively; P < 0.001). Furthermore, six independent factors preventing severe complications following liver abscess due to K. pneumoniae were identified: normal platelet count, alkaline phosphatase less than 300 U/liter, no gas formation in the abscess, APACHE III score less than 40, use of an extended-spectrum cephalosporin, and early drainage. In conclusion, cefazolin therapy may be suboptimal for patients with liver abscess due to K. pneumoniae despite active in vitro susceptibility. Use of an extended-spectrum cephalosporin and early drainage for patients with liver abscess due to K. pneumoniae are suggested.

APACHE↗

Amoebic liver abscess: an Auckland experience.

Globally, liver abscess caused by Entamoeba histolytica is a common condition. In New Zealand, however, it occurs infrequently. Eight cases were diagnosed in Auckland between 1972 and 1982, each patient having travelled through an endemic area within two years of presentation. Management often was not ideal, with both delays in diagnosis and inappropriate treatment. There is a need for increased awareness of possible amoebic abscesses in those who have been in endemic areas because with prompt use of effective treatment complications can be avoided.

Adult↗

Diagnostic tests for amoebic liver abscess: comparison of enzyme-linked immunosorbent assay (ELISA) and counterimmunoelectrophoresis (CIE).

The liver abscess is the most frequent extraintestinal complication of intestinal amoebiasis: its diagnosis is suggested by the clinical picture but it must be confirmed by paraclinic tests. Themost stringent diagnosis requires identification of E. histolytica. But this is possible only in a few cases. Serological tests greatly improve the diagnosis of this severe complication of amoebiasis. We compared the Enzyme Linfed Immunosorbent Assay and the Counterimmunoelectrophoresis techniques. Both techniques were used to detect amoebic antibodies in 50 control patients, 30 patients with liver abscess and 30 patients with intestinal amoebiasis. All the sera from control patients gave negative results in both techniques. When analysing the sera from patients with intestinal amoebiasis, 10% of them were positive by ELISA but non by CIE. The sera of patients with liver abscess, we found that 90% were positive by the ELISA method and 66.6% by the CIE technique. In patients with amoebic liver abscess, the results showed that the ELISA was more sensitive than the CIE, as it presented a higher sensitivity (100%) than that of the CIE technique (66%).

Animals↗

Pyogenic liver abscesses: a retrospective review of 24 cases.

OBJECTS: to review our experience of pyogenic liver abscess with attention to the value of ultrasound and computerised tomography, and the duration of antimicrobial therapy. METHOD: retrospective review of all pyogenic liver abscesses in Christchurch hospitals between 1972 and 1989. RESULTS: twenty-four cases were identified. The presentation of these cases was typical of those described in other series. Ultrasound scanning was positive in 69% of cases, and computerised tomography in 94%. Enteric organisms were isolated from blood or abscess cavities in all but two cases. Two patients died soon after admission and three were treated with antimicrobial therapy alone. The remainder underwent either a percutaneous or surgical drainage procedure, and received antimicrobial therapy. The antimicrobial therapy was clearly inappropriate in two patients. Eight patients (67%) with single abscesses received less than 10 days of antimicrobial therapy. Four patients (50%) with multiple abscesses received less than 18 days therapy. No patient relapsed. CONCLUSIONS: ultrasound is a convenient initial imaging technique, but may give false negative results. Computerised tomography should be done promptly if clinical suspicion of a liver abscess persists. Both surgical and percutaneous drainage techniques gave good results in combination with antimicrobial therapy. It is probably unnecessary to give prolonged courses of antimicrobial therapy following drainage of single liver abscess, provided there is rapid resolution. Multiple abscesses, or those which are not drained, may require longer courses of antimicrobial therapy.

Adolescent↗

[Amoebic liver abscess: observations in seven patients].

INTRODUCTION: The epidemiological and clinical characteristics of patients with amoebic liver abscess are described. METHODS: Laboratory, clinical, and epidemiological records of all patients with amoebic liver abscess diagnosed from 1991 to 2002 at Hospital Universitario Son Dureta (Palma de Mallorca, Spain), a 980-bed referral hospital in the Balearic Islands, were retrospectively reviewed. RESULTS: Seven patients were diagnosed with amoebic liver abscesses and all were residing in Mallorca. Two patients had developed the disease after travelling to endemic areas (India and Thailand), and another, from Ecuador, had been diagnosed four months after coming to Spain from his country of origin. In the remaining four patients, no apparent link with endemic areas was observed, nor was travel out of Spain recorded. Therefore, these cases were thought to have originated in Spain, though this circumstance could not be conclusively proven. Two of the seven patients had human inmunodeficiency virus (HIV) infection. CONCLUSIONS: An amoebic etiology should be considered in the differential diagnosis of liver abscess in our area, even in the absence of a clear related epidemiological history.

AIDS-Related Opportunistic Infections↗

Pyogenic liver abscess caused by Pseudomonas aeruginosa in a previously healthy child: report of one case.

Pyogenic liver abscess (PLA), a very uncommon liver disease in the normal pediatric group is often associated with immunocompromised conditions. Pseudomonas aeruginosa has long been regarded as a relatively rare pathogen of PLA, especially in patients without underlying problems. A previously healthy one-year-and-seven-month-old boy who had symptoms of fever, vomiting and diarrhea got a liver abscess at right hepatic lobe which was confirmed by abdominal ultrasound and computed tomography (CT) diagnoses. Ultrasound-guided percutaneous aspiration of liver abscess was done soon after the confirmation. The culture result of aspirate grew P. aeruginosa. The patient received a 4-week course of adequate antibiotics treatment after the aforementioned aspiration procedure. In addition, a series of ultrasounds were performed to follow the resolution of abscess during the treatment period. The immune function tests of the patient were within normal ranges. Finally, the lesion resolved completely without leaving any complication.

Anti-Bacterial Agents↗

The changing clinical spectrum of liver abscess: the Jerusalem experience.

A retrospective study was conducted of all 31 patients with liver abscess admitted to Shaare Zedek Medical Center between 1979, the year computed tomographic scan and ultrasound were introduced, and 1992. Fever and abdominal pain were the most common symptoms. Duration of symptoms was short: 81% of patients had symptoms for < or = 5 days and none had symptoms for more than 3 weeks. Amoebic abscess was found in one patient only, the remainder were pyogenic. Biliary tract pathology remains the most common cause of liver abscess (39%). The diagnosis was made by ultrasound in 22/31 (71%) and by computed tomographic scan in 9/31 (29%) of patients. Treatment consisted of intravenous antibiotics and percutaneous drainage under ultrasound guidance in 24/31 patients (77%). Four patients died (13%), three of whom had underlying malignancies. Clinical features were compared with those from a similar series of 36 cases with liver abscess reported from Jerusalem predating ultrasound and computed tomographic scan (1967-1977). Several major changes have occurred. First, the relative incidence of amoebic abscess has dramatically decreased. Second, ultrasound and computed tomographic scan have facilitated earlier diagnosis and percutaneous drainage, contributing to improved survival and lower morbidity.

Adolescent↗

Obstructive jaundice: an unusual presentation of amoebic liver abscess.

A case of amoebic liver abscess with obstructive jaundice is described. Treatment with metronidazole resulted in improved general condition while the jaundice continued to increase. The abscess was twice aspirated and a total of 500 ml fluid was obtained with no improvement in the jaundice. A percutaneous catheter was introduced and drained 300-400 ml bile a day, decreasing and stopping over a week. The jaundice progressively improved.

Cholestasis↗

Pyogenic liver abscess after hepatobiliary and pancreatic surgery.

From 1984 to 1998, a total of 2158 patients underwent hepatobiliary and pancreatic surgery, and 12 patients developed liver abscess after hepatobiliary and pancreatic surgery; thus, the incidence of liver abscess was 0.6%. The main reasons for liver abscess were anastomotic stricture in 5 patients, obstruction of percutaneous transhepatic biliary drainage (PTBD) tube in 3 patients, and portal vein and hepatic artery obstruction due to intraoperative radiation in 1 patient, transportal chemotherapy in 1 patient, chemo-lipiodolization in 1 patient, and unknown in 1 patient. Ten of the 12 patients initially underwent percutaneous transhepatic abscess drainage of whom 2 patients subsequently received surgical drainage. The other 2 patients were treated with antibiotics only. Eight of the 12 patients were cured, but 4 patients died. The reasons for death were sepsis in 3 patients and liver failure due to portal vein and hepatic artery obstruction in 1 patient. Our results indicate that liver abscess should be taken into consideration for patients with risk factors.

Aged↗

Difficulties in the diagnosis and management of pyogenic liver abscess.

Thirty patients with pyogenic liver abscess were admitted to King's College Hospital between 1967 and 1978. The overall mortality was 43 per cent (13 patients). The diagnosis was often difficult and in 10 patients the correct diagnosis was not made until post-mortem. Of the 20 patients diagnosed and treated, 17 had a unilocular abscess, of whom 16 survived. The remaining 3 had a multicentric abscess, and only 1 of them survived. Difficulty in diagnosis was sometimes increased by misleading results fom special investigations. Clinical awareness leading to early diagnosis, drainage and broad spectrum antibiotic treatment remain the prerequisites for cure.

Adolescent↗

Abdominal wall abscess secondary to subcapsular tubercular liver abscess.

We report a 22-year-old woman who presented with an abdominal wall lump in the right upper quadrant 15 days after starting antitubercular treatment for right pleural effusion. CT scan revealed a right liver lobe subcapsular abscess communicating vith subcutaneous tissue. Aspiration of pus revealed acid-fast bacilli. She responded to 9 months of antitubercular treatment.

Abdominal Abscess↗

[Clinical features of liver abscess developed after radiofrequency ablation and transarterial chemoembolization for hepatocellular carcinoma].

BACKGROUND/AIMS: Radiofrequency ablation (RFA) and transarterial chemoembolization (TACE) have been applied for treating hepatocellular carcinoma (HCC), but procedure-related complications can be a serious problem. This study was conducted to evaluate the clinical features of HCC patients who developed liver abscess after RFA and TACE, as compared to those patients without malignancy. METHODS: In our center, from December 1999 to March 2004, 31 cases of liver abscess developed after local treatment of HCC (13/751 after RFA and 18/8417 after TAE), which correspond to 5.1% of the total cases (602) of liver abscess. We evaluated the patients' clinical features, the abscess characteristics, the bacteriology, treatment modality, hospital days and mortality, as compared to those characteristics of 263 abscess patients without malignancy. RESULTS: The time required to diagnose liver abscess was longer in the TACE group (24.8+/-16.5 days) compared to that of the other two groups (12.2+/-9.0 days in the RFA group, 9.6+/-7.5 days in the controls, P=0.001). Gas-forming liver abscess is most frequently found in the RFA groups (76.9%). There were more hospitalized days for the TACE groups than for the RFA group and the controls (34.7+/-19.8 vs. 15.2+/-9.2 vs. 18.6+/-10.9 days, respectively, P<0.001). Two patients (11%) in the TACE group died of sepsis and liver failure. CONCLUSIONS: For the patients with prolonged fever after RFA and especially after TACE for HCC, a diagnosis of liver abscess should be suspected earlier to reduce the morbidity and mortality due to liver abscess per se and also the sepsis-related decompensation of the liver.

Adult↗

Serial ultrasound in amoebic liver abscess.

Serial ultrasound examinations were conducted in 93 patients with amoebic liver abscess. The initial size of the abscesses ranged from 3 to 17 cm. The time taken for complete healing to occur varied from 10 to 300 days and correlated directly with the initial size of the abscess cavity. As healing progressed, the abscess cavity became increasingly hypoechoic and assumed a smoother margin. In uncomplicated cases, complete healing occurred and, on ultrasound, no residual lesions were seen in the liver. There were two cases each of delayed healing and recurrence of amoebic liver abscess and the value of ultrasound in these situations is discussed. Ultrasound examination of the liver appears to be very suitable for assessing satisfactory progress of healing in amoebic liver abscess.

Humans↗

Amoebic liver abscess rupturing into the chest: ultrasonographic appearance.

Two cases of amoebic liver abscess perforating into chest are reported. Both patients were males in their twenties. They presented with right upper quadrant pain in abdomen in one case and right lower chest pain in second case. Ultrasonography demonstrated hypoechoic liver abscess in superior subdiaphragmatic part of the right lobe of liver, with communication through a hole in the diaphragm into the thoracic cavity in both the cases. Both these cases were diagnosed as cases of amoebic liver abscess perforated into chest on the basis of ultrasonographic findings and both of them showed good response to specific antiamoebic therapy.

Adult↗

Liver abscess secondary to intrahepatic perforation of the gallbladder, presenting as a liver mass.

We present an unusual case of a large pyogenic liver abscess containing multiple stones caused by perforation of a necrotic gallbladder and spread of the infection into the liver. It manifested by weakness, weight loss, and a palpable liver mass, pointing toward a neoplastic process. Workup for metastatic disease was negative, and tumor markers also were negative. Ultrasound and computerized tomography were inconclusive, and the diagnosis was established by laparoscopy. Open drainage and cholecystectomy were performed, with good outcome. In the literature, there have been very few reports of intrahepatic perforation of the gallbladder resulting in formation of hepatic abscess. The presentation, diagnosis, and management of liver abscesses, as well as the complications of acute cholecystitis, are discussed.

Acute Disease↗

Liver abscess in the tropics: an experience from Nepal.

Thirty-six consecutive cases of liver abscess seen at the BP Koirala Institute of Health Sciences Hospital, Dharan, Nepal, from 1995 to 1998, were reviewed. Twenty-one cases were male and 15 female, with a mean age of 42 years. Twenty-four cases (66.7%) were amebic, 7 (19.4%) pyogenic, 3 (8.3%) indeterminate and 2 (5.5%) tuberculous. The most frequent clinical features included fever (88%), leukocytosis (66.7%), abnormal level of serum albumin (44.4%) and alkaline phosphatase (38.9%). The liver abscess was single in 61.1%, multiple in 27.8%, and in 66.7% of cases the abscess was present in the right lobe of the liver. Ultrasonography was diagnostic in all cases. A positive culture of the abscess was obtained in 7 cases (19.4%). The most frequent bacteria found were Klebsiella pneumoniae (4;11.1%), followed by Escherichia coli (3;8.3%). Two cases were due to Mycobacterium tuberculosis and none had malignancy. Percutaneous drainage was performed in 27 patients (75%). Mortality attributable to the abscess was 5.5%. We found percutaneous needle aspiration of liver abscess helpful in confirming diagnosis, as it provides a better bacteriological culture yield, gives a good outcome, and may uncover clinically unsuspected conditions like malignancy and tuberculosis. These two conditions should certainly be considered possible causes in our part of the world when an abscess fails to respond to standard treatment. In developing countries like Nepal, the clinical presentation of liver abscess has not varied over time. At present, rapid diagnosis and image-guided percutaneous drainage offer a better prognosis for liver abscess. We also recommend routine cytological examination of aspirated abscess materials, as well as stains and cultures for acid-fast bacilli.

Adolescent↗