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Forty-three patients with Klebsiella oxytoca bacteremia were seen between July 1980 and June 1996 at National Taiwan University Hospital (Taipei, Taiwan). We retrospectively analyzed the clinical features of these patients and the antimicrobial susceptibilities of the 43 isolates recovered from them. Twenty-seven patients (63%) had community-acquired bacteremia, and 16 patients (37%) had polymicrobial bacteremia. The clinical syndromes included hepatobiliary infections (58% of patients), primary bacteremia (23%), intravascular device-associated infections (7%), urinary tract infections (5%), skin and soft-tissue infections (5%), and peritonitis (2%). Most of these patients (93%) had underlying diseases including hepatobiliary diseases (53%), neoplastic diseases (42%), and diabetes mellitus (16%). Eight patients (19%) had septic shock, and two (5%) had disseminated intravascular coagulation. Four patients (9%) died of K. oxytoca bacteremia. All isolates were susceptible to ampicillin/sulbactam, cefmetazole, imipenem, aminoglycosides, and quinolones, and 86% of the isolates were susceptible to cefazolin.
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PMID:Bacteremia due to Klebsiella oxytoca: clinical features of patients and antimicrobial susceptibilities of the isolates. 919 86

Acute renal failure (ARF) is one of the major complications after cardiopulmonary bypass for open heart operations. The present study was undertaken to identify the risk factors for the development of ARF following cardiopulmonary bypass (CPB). Four hundred and forty-seven consecutive patients who underwent open heart procedures from July 1994 to June 1995 were analyzed retrospectively. Their mean age was 55.6 +/- 14.2 (SD) years (range, 18 to 80). Dialysis was instituted whenever a patient exhibited inadequate urine output (<0.5 mL/kg/hr) for 2 to 3 hours despite correction of hemodynamic status and diuretic therapy, especially if fluid overload, hyperkalemia, or metabolic acidosis were also present. Twenty variables were analyzed by univariate analysis; these included nine preoperative variables--age, sex, hypertension, atherosclerosis, diabetes mellitus, left ventricular end-diastolic dimension (LVEDD) >5 cm, preoperative congestive heart failure, renal insufficiency (serum creatinine > or =130 micromol/L on two occasions), and sepsis--10 intraoperative variables--duration of CPB, redo procedures, emergency surgery, use of intraaortic balloon pump (IABP) in operating room, use of gentamicin, use of ceftriaxone, use of sulbactam/ampicillin, requirement of deep hypothermic circulatory arrest, duration of low mean perfusion pressure (mean pressure <50 mmHg for more than 30 minutes), operation on multiple valves--and one postoperative variable--significant hypotension (systolic blood pressure less than 90 mmHg for more than 1 hour). Significant variables or the variables having a trend (p<0.1) to be associated with ARF were included in stepwise multiple logistic regression analyses. Three regression analyses were performed separately. The incidence of ARF requiring dialysis in the study period was 15.0%. Significant risk factors for whole group of patients (regression I) were preoperative renal insufficiency (p<0.0001), postoperative hypotension (p<0.0001), cardiopulmonary bypass time more than 140 min (p<0.005), preoperative congestive heart failure (p<0.01), and history of diabetes mellitus (p<0.01). The risk factors in the valve group of patients (regression II) were preoperative renal insufficiency (p<0.0001) and postoperative hypotension (p<0.05). Risk factors in the CABG patients (regression III) were postoperative hypotension (p=0.0001), CPB time more than 140 min (p<0.05), preoperative renal insufficiency (p<0.05), and age (p<0.05). The authors conclude that preoperative renal insufficiency and postoperative hypotension are the most important independent risk factors for ARF in postcardiac surgical patients. In addition, CPB time greater than 140 minutes and old age are also independent risk factors for ARF in CABG patients. CPB time more than 140 minutes, history of diabetes mellitus, and preoperative congestive heart failure are independent risk factors for development of ARF in our total group of patients. These findings may have important clinical implications in the prevention of ARF in postcardiac surgical patients.
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PMID:Risk factors for development of acute renal failure (ARF) requiring dialysis in patients undergoing cardiac surgery. 978 43

During the period 1989 to 1996, a total of 372 cases of melioidosis, with 147 deaths, were reported, giving a mean annual incidence rate of 1.7 per 100,000 population and a case-fatality rate of 39.5%. Majority (89%) of the clinical cases were confirmed by culture of Burkholderia pseudomallei, while the others were presumptive cases based on a single blood specimen with an indirect haemaglutination (IHA) antibody titre of > or = 1:16. The highest incidence rate was reported in those aged 45 years and above (5.7 per 100,000 population), males (2.8 per 100,000 population), and Indian ethnic group (3.0 per 100,000 population). Cases were distributed throughout the island all year round. There was no correlation with rainfall. Most of the cases (77.4%) had other concurrent medical conditions, the most common being diabetes mellitus (57.5%). Factors significantly associated with a higher case-fatality rate were age (55 years and above), septicaemia, smoking history and heart or renal failure. The overall case-fatality rate has been declining from 60% in 1989 to 27% in 1996 due to a greater awareness among medical practitioners to diagnose and treat the disease early. The overall seroprevalence of IHA antibody (titre of > or = 1:16) among asymptomatic population groups was 0.2%. B. pseudomallei isolated from clinical specimens were sensitive to imipenem (100%), ceftazidime (99.1%), piperacillin (99.7%), ampicillin-clavulanate (98.5%), minocycline (97.4%), chloramphenicol (94.3%), doxycycline (94.3%) and tetracycline (93.9%). Of 395 samples of soil collected during epidemiological investigation of reported cases, 1.8% were positive for B. pseudomallei.
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PMID:Epidemiological surveillance of melioidosis in Singapore. 979 50

We report a case of soft tissue infection with Kluyvera cryocrescens and a critical review of Kluyvera infections. A 31-year-old diabetic man used a new chemical for stripping the floor with his bare hands. Two days later he developed a blister on a finger which progressed to tenosynovitis in spite of intravenous nafcillin therapy. After 11 days culture and sensitivity results dictated treatment with intravenous ticarcillin/clavulanic acid. The wound was debrided twice, and later a skin flap was done. Wound cultures became sterile after 7 days of treatment with ticarcillin/clavulanic acid, and he recovered. This case represents the fourth clinical infection with K. cryocrescens and the eighteenth of Kluyvera to be reported. Four others were K. ascorbata, and the remaining ten Kluyvera infections in humans were not identified beyond genus. Our case and review of the 17 previous cases emphasize that while Kluyvera rarely cause disease, these opportunistic Gram-negative bacilli may be virulent in a variety of sites under as yet poorly defined host conditions. Sites of infection varied, but the brain and meninges were not among them. Two patients had diabetes mellitus, none had AIDS, and four died. Once shown clinically to be the cause of an infection, Kluyvera deserve aggressive treatment which acknowledges their ampicillin resistance.
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PMID:Kluyvera cryocrescens finger infection: case report and review of eighteen Kluyvera infections in human beings. 988 42

Soft tissue infections are among the rare manifestations of extra intestinal salmonellosis and occur more frequently in immunocompromised patients. Herein we report a case of a 51-year-old white male with type II. diabetes mellitus, diagnosed with supraclavicular abscess caused by Salmonella enteritidis. The patient denied any gastrointestinal symptoms, and stool cultures were negative. After incision, drainage, and administration of intravenous ampicillin (4 x 1.5 g/day for two weeks) the patient recovered completely. To our knowledge, this is the first reported case of cervical soft tissue abscess caused by Salmonella enteritidis without preceding gastrointestinal symptoms. We feel that the presence of diabetes was a risk factor for developing the infection.
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PMID:Supraclavicular abscess caused by Salmonella enteritidis in patient without gastrointestinal symptoms. 988 47

Within a 6-year period from January 1991 to December 1996, 249 patients of salmonellosis admitted to Kaohsiung Medical College Hospital were enrolled for clinical and microbiological analysis. The number of patients increased by year from 1991 (14 patients) to 1996 (79 patients), especially in the case of nontyphoid salmonellosis. There were 57 different serotypes isolated during these period. Salmonella typhimurium was the most common clinical serotype of human origin in southern Taiwan, followed by S. choleraesuis, S. schwanzengrund, and S. derby. Fever (81.1%), diarrhea (68.9%), and anorexia (44.6%) were the most common manifestations of human salmonellosis. Relative bradycardia was a more important feature in S. typhi group (100%) than nontyphoid salmonellosis. Leukocytosis, especially lymphocytosis, was found especially in nontyphoid, but not in typhoid salmonellosis. Elevated liver function tests were found in the most severe patients, such as S. choleraesuis and S. typhi infections. Malignancy (8.8%), especially hematological malignancy (5.2%), gastrointestinal diseases (8.8%), and diabetes mellitus (6.4%) were the common underlying diseases. Case fatality rate of human salmonellosis was 8% (20/249), especially high in S. choleraesuis group. The severity of underlying diseases may be the major cause in S. choleraesuis group. There was no fatal case with typhoid fever. Very high resistance rate to commonly used antimicrobial agents in nontyphoid Salmonella was noted in southern Taiwan with overall rates of resistance to ampicillin, 67.9%, chloramphenicol, 66.7%, and TMP/SMZ, 42.2%. The emergence of ciprofloxacin-resistant and multiresistant strains was also a major therapeutic problem in this study.
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PMID:Epidemiological study of human salmonellosis during 1991-1996 in southern Taiwan. 1022 36

Helicobacter fennelliae (formerly Campylobacter fennelliae) has been reported to cause bacteremia in homosexual men with or without human immunodeficiency virus (HIV) infection. We report here a 48-year-old, non-HIV-infected, heterosexual man with diabetes mellitus and cirrhosis of the liver who developed bacteremia and septic shock due to H. fennelliae. The patient was treated successfully initially with intravenous ampicillin-sulbactam and ceftazidime, followed by ampicillin-sulbactam only. These agents were active in vitro against the isolate by E-test results. To our knowledge, this is the first documented case of septic shock due to H. fennelliae in a non-HIV-infected, heterosexual, immunocompromised patient.
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PMID:Septic shock due to Helicobacter fennelliae in a non-human immunodeficiency virus-infected heterosexual patient. 1032 88

From July 1996 to June 1997, 22 adult patients with Serratia marcescens bacteremia were retrospectively studied at China Medical College Hospital. All patients had severe underlying disease, most commonly diabetes mellitus. Eighteen (82%) patients had nosocomial infection. Clinical syndromes included primary bacteremia (68%), pneumonia (14%), urinary tract infection (9%), suppurative thrombophlebitis (5%) and surgical wound infection (5%). Twelve patients had central venous catheters in place at the onset of bacteremia, but only one case met the definition of catheter-related infection. In 14 (64%) patients, portal of entry of S. marcescens infection was unknown. Five (23%) patients had concurrent polymicrobial bacteremia. The overall mortality rate was 50% (11/22). Seven (32%) of the 22 patients died of S. marcescens bacteremia. All isolates were resistant to ampicillin and cephalothin and susceptible to imipenem. Ninety-five percent of strains were susceptible to moxalactam, 68% to amikacin, 55% to ceftazidime, 45% to aztreonam, 32% to ceftriaxone, 27% to gentamicin, 18% to cefoperazone and cefotaxime, and 9% to piperacillin. MICs of various antibiotics demonstrated that ciprofloxacin and imipenem had good activities against S. marcescens, with MIC90 of 0.19 microg/mL and 1.0 microg/mL, respectively. Due to increasing multidrug resistance, choosing appropriate antimicrobial agents such as moxalactam, imipenem, and ciprofloxacin should be highly recommended for the treatment of S. marcescens infections.
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PMID:Serratia marcescens bacteremia: clinical features and antimicrobial susceptibilities of the isolates. 1049 54

Streptococcus agalactiae strains or group B streptococci (GBS) are the leading cause of bacterial pneumoniae, sepsis and meningitis in neonates. GBS is also a major cause of bacteriemia in pregnant women. Colonization of the human rectovaginal tract with GBS is a risk factor associated with chorioamnionitis and transmission of the infection to the infant. Neonatal exposure to high concentrations of GBS, mainly during vaginal delivery, leads to colonisation of the lung airways and subsequent onset of severe diseases like pneumonia, sepsis and menigitis. GBS is present in the genitourinary tract of 10% to 40% of pregnant women, about 50% of the newborns of these mothers will be colonised during delivery and of these neonates, 1% to 2% present a severe invasive disease. The early-onset disease, appear in the neonates within 7 days of life and more than 90% occur within the first day of life. Fatal infection is associated commonly with fulminat and overwhelming early-onset disease. Maternal-intrapartum chemoprophylaxis is able to prevent the transmission of GBS to the newborn and to reduce the frequency and the severity of early onset disease. In many countries, in particular in US, several recommendations have been proposed to prevent the perinatal GBS infection. In this paper some recommendations to prevent GBS disease of the newborn, performed in collaboration with Italian Society of Perinatal Medicine, are presented. The most important problem in the prevention programme is the identification of the cases to treat, since it is not possible to give antibiotics to all the women. We combine two strategies for the identification of the women to be treated, one risk based and the other screening based. Intra-partum administration of ampicillin or penicillin is recommended for the women with one or more risk-factors (labour < 37 weeks of gestation, duration of ruptured membranes > = 18 hours, intrapartum temperature > = 38 degrees C, previous infant with invasive GBS disease, diabetes) and for women with collect vaginal and rectal swab for GBS culture at 36-38 weeks' gestation, positive for GBS. No treatment is required for the babies of women intrapartum treated or with negative culture performed near term. Treatment with ampicillin is necessary, only in the new-borns of women with incomplete or unknown results or not done cultures and in those born from mothers with positive cultures, but not intrapartum treated. Collection of swabs for GBS is recommended before antibiotic administration. If the culture is negative, we suggest to stop the antibiotic therapy, otherwise the treatment must be continuated for 5-7 days. In conclusion, a written protocol for prevention of GBS infection in new-born must be adopted in every delivery centre and one possible protocol is proposed in this paper.
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PMID:[Prevention of perinatal infection caused by group B beta-hemolytic streptococcus]. 1140 19

Hepatitis due to Listeria monocytogenes is uncommon in adults. This report describes the first case observed in Senegal. The patient was a 73-year old man presenting listeria-related hepatitis presumably secondary to low-grade meningeal encephalitis. Treatment using ampicillin was unsuccessful and the patient died four days after hospitalization. The authors note that the incidence of adult listeriosis has risen constantly for the past twenty years in relation with alcohol abuse, cirrhosis, diabetes, kidney insufficiency, cancer, AIDS, and organ transplantation. However no predisposing factors were observed in the present case.
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PMID:[Cerebromeningeal listeriosis associated with a cytolytic hepatitis. First case report in Senegal]. 1143 88


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