• IMA sites
  • IMAJ services
  • IMA journals
  • Follow us
  • Alternate Text Alternate Text
עמוד בית
Fri, 22.11.24

Search results


February 2012
M. Vardi, T. Kochavi, Y. Denekamp and H. Bitterman

Background: Extended-spectrum beta-lactamase (ESBL) resistance is a growing concern in and outside hospitals. Physicians often face a true clinical dilemma when initiating empirical antibiotic treatment in patients admitted to internal medicine departments.

Objectives: To determine the prevalence of risk factors for ESBL resistance in patients with urinary tract infection (UTI) admitted to internal medicine departments.

Methods: We conducted a retrospective analysis of the medical records of patients with UTI admitted to an internal medicine division in a community-based academic hospital over a 1 year period. We collected clinical, laboratory and imaging data that were available to the treating physician at admission. Outcome measures included ESBL resistance and death.

Results: Of the 6754 admissions 366 patients were included in the study. Hospitalization during the previous 3 months (odds ratio 3.4, P < 0.0001), residency in a long-term-care facility (OR[1] 2.4, P = 0.004), and the presence of a permanent urinary catheter (OR 2.2, P = 0.015) were correlated to ESBL resistance with statistical significance. These risk factors were extremely prevalent in our patient cohort.

Conclusions: ESBL resistance is becoming prevalent outside hospital settings, and patients admitted to an internal medicine department with UTI frequently carry risk factors for harboring resistant bacteria. In such patients a high index of suspicion and early targeted antibiotic treatment for ESBL-producing Enterobacteriaceae may be justified.

 



 

[1] OR = odds ratio

December 2010
S. Lurie, H. Asaala, O. Schwartz Harari, A. Golan and O. Sadan

Background: Although the presence of bacteria in the cervix is not a sign of disease, the majority of pathogens involved in pelvic inflammatory disease originate from this "normal" flora.

Objectives: To assess the distribution of cervical non-gonococcal and non-chlamydial bacteria in hospitalized women with PID[1] and the bacteria's antibiotic sensitivity.

Methods: We retrospectively evaluated the cultures obtained from the uterine cervix over a 1 year period (2008) at Wolfson Medical Center, Holon. The distribution of cervical non-gonococcal and non-chlamydial bacteria in women with PID and the bacteria's antibiotic sensitivity was compared to that in our previous 1 year study that was performed at Kaplan Medical Center, Rehovot (1988–89). 

Results: In 2008, a total of 412 cultures were obtained of which 126 (30.5%) were sterile. The prevalence of negative cultures was similar in 2008 and in 1988, namely, 30.5% and 33.7%, respectively (P = 0.23). PID was finally diagnosed in 116 patients with positive cultures. The most prevalent bacteria in the 2008 study were Enterococcus species and Escherichia coli – 24.0 % and 26.4% respectively compared to 18.0% and 38.1% in the 1988 study, with the decrease in E. coli isolates being significant (P = 0.0003). In 2008 the antimicrobial sensitivity for various antibiotics ranged from 44.3% to 100.0% (median 90.2%) while in 1988 it ranged from 2.9% to 80.1% (median 51.9%).

Conclusions: The cervical bacterial flora in hospitalized women with PID did not vary significantly between 1988 and 2008. However, antimicrobial sensitivity of the isolated bacteria increased dramatically, probably due to a decrease in resistance to antibiotics.






[1] PID = pelvic inflammatory disease


June 2010
Y.R. Lawrence, R. Pokroy, D. Berlowitz, D. Aharoni, D. Hain and G.S. Breuer

Background: Osler taught that splenic infarction presents with left upper abdominal quadrant pain, tenderness and swelling accompanied by a peritoneal friction rub. Splenic infarction is classically associated with bacterial endocarditis and sickle cell disease.

Objectives: To describe the contemporary experience of splenic infarction.

Methods: We conducted a chart review of inpatients diagnosed with splenic infarction in a Jerusalem hospital between 1990 and 2003.

Results: We identified 26 cases with a mean age of 52 years. Common causes were hematologic malignancy (six cases) and intracardiac thrombus (five cases). Only three cases were associated with bacterial endocarditis. In 21 cases the splenic infarction brought a previously undiagnosed underlying disease to attention. Only half the subjects complained of localized left-sided abdominal pain, 36% had left-sided abdominal tenderness 31% had no signs or symptoms localized to the splenic area, 36% had fever, 56% had leukocytosis and 71% had elevated lactate dehydrogenase levels. One splenectomy was performed and all patients survived to discharge. A post hoc analysis demonstrated that single infarcts were more likely to be associated with fever (20% vs. 63%, p < 0.05) and leukocytosis (75% vs. 33%, p = 0.06)

Conclusions: The clinical presentation of splenic infarction in the modern era differs greatly from the classical teaching, regarding etiology, signs and symptoms. In patients with unexplained splenic infarction, investigation frequently uncovers a new underlying diagnosis.
 

O. Nitzan, U. Suponitzky, Y. Kennes, B. Chazan, R. Raz, R. Colodner

Background: Due to increasing antimicrobial resistance there has been renewed interest in old drugs that have fallen into disuse because of toxic side effects.

Objectives: To evaluate the susceptibility profile, in our hospital, of Enterobacteriaceae and Streptococcus pneumoniae isolates to chloramphenicol and to compare them with the susceptibility to amoxicillin-clavulanate.

Methods: All isolates of Enterobacteriaceae and S. pneumoniae recovered in our lab during a one year period were tested for susceptibility to chloramphenicol and amoxicillin-clavulanate or penicillin, respectively.

Results: Of 413 Enterobacteriaceae isolates, 182 (44.1%) were resistant to amoxicillin-clavulanate, but only 76 (18.4%) were resistant to chloramphenicol. Of 189 isolates of S. pneumoniae, 4 (2.1%) were highly resistant to penicillin and 73 (38.8%) were partially resistant, while only 2 (1.1%) were resistant to chloramphenicol. None of the 24 S. pneumoniae isolates causing invasive diseases exhibited resistance to chloramphenicol.

Conclusions: In an era of increasing resistance to many antibiotic preparations, chloramphenicol might have a role in the treatment of intraabdominal and respiratory tract infections.

February 2010
January 2010
J. Amir

Lymphadenitis is the most common manifestation of non-tuberculous mycobacteria infection in children. Its frequency has increased over the past few decades. Diagnosis is based on clinical presentation, purified protein derivative skin test, and bacterial isolation. Management options are surgery, antibiotics, or "observation only"; however, the optimal therapy for this condition is still controversial.

November 2009
N. Geffen, G. Norman, N.S. Kheradiya and E.I. Assia

Background: It is common practice to use topical antiseptic formulations prior to specific therapy in superficial infections and injuries, but not in corneal bacterial ulcers. There is accumulating evidence proving chlorhexidine gluconate 0.02%, an antiseptic agent, as an effective treatment for infectious keratitis.

Objectives: To investigate the safety and efficacy of chlorhexidine gluconate 0.02% as an adjunct therapy for corneal bacterial ulcers.

Methods: Twenty-six patients with corneal bacterial ulcers were treated with standard empirical antibiotic treatment. The study group was treated with chlorhexidine gluconate 0.02% while controls received placebo for one week. The patients were followed for at least 1 month.

Results: No allergic or toxic reactions were noted. Although a higher baseline severity of ulcers existed in the study group, no differences were found in final vision, scarring extent, or recovery duration.

Conclusions: Chlorhexidine gluconate 0.02% may improve the clinical course of corneal ulcers.
 

July 2008
July 2007
O.Scheuerman, L.de Beaucoudrey, V.Hoffer, J.Feinberg, J.L.Casanova, and B.Z.Garty
June 2007
A. Basok, M. Vorobiov, B. Rogachev, L. Avnon, D. Tovbin, M. Hausmann, N. Belenko, M. Zlotnik, A. Shnaider

Background: Patients with end-stage renal disease are at high risk of mycobacterial infection.

Objectives: To analyze the difficulties in reaching an accurate diagnosis of tuberculosis in dialysis patients.

Methods: We conducted a retrospective follow-up of patients who attended our peritoneal and hemodialysis units during the 10 year period 1995–2005.

Results: Our dialysis unit diagnosed 10 cases of tuberculosis caused by Mycobacterium tuberculosis and 9 cases of Mycobacterium other than tuberculosis. In the former group, five patients had mycobacterium in the sputum, which was diagnosed by intraabdominal mass biopsy in one, culture of the gastric juices in one, and pleural fluid culture or pleural biopsy in three. One of these patients was suffering from pleural TB[1] as well as Potts disease. Of the patients with Mycobacterium other than tuberculosis, five were diagnosed by sputum cultures, three by urine cultures and one in peritoneal fluid. Differences in treatment and outcome were also reviewed.

Conclusions: The diagnosis of TB in dialysis patients should be approached with a high index of suspicion. It is clear that extensive diagnostic procedures are required to ensure an accurate diagnosis of the disease. Tuberculosis incurs a significant added burden due to the need for isolation of infected patients within the dialysis unit. Treatment of patients with Mycobacterium other than tuberculosis should be addressed individually.






[1] TB = tuberculosis


March 2007
A. Brautbar, Y. Esyag, G.S Breuer, Y. Wiener-Well and G. Nesher

The human papillomavirus family of viruses causes a variety of benign, premalignant and malignant lesions in men and women. All cervical cancers are caused by HPV[1]. It is the leading cause of death from cancer in women in developing countries; every year some 493,000 women develop cervical cancer and 230,000 women die every year of this disease. The vaccine against HPV includes virus-like particles, composed of the major viral capsid protein of HPV without the carcinogenic genetic core. Large-scale studies have shown that the vaccine is tolerated well, leads to high antibody levels in both men and women, and prevents chronic HPV infection and its associated diseases. To achieve effective coverage the vaccine should be given prior to sexual debut. Introduction of the vaccine into specific countries, particularly Israel, should take into account the local incidence of cervical cancer as well as the increasing incidence of precancerous cervical lesions and genital warts, which reduce quality of life and are associated with considerable costs.

 

 







[1] HPV = human papillomavirus


May 2005
J. Bishara, G. Livne, S. Ashkenazi, I. Levy, S. Pitlik, O. Ofir, B. Lev and Z. Samra

Background: The prevalence of extended-spectrum β-lactamase-producing organisms and their antimicrobial resistance patterns may vary between geographic areas.

Objectives: To evaluate the prevalence and susceptibility of ESBL[1]-producing organisms among Klebsiella pneumoniae and Escherichia coli isolated from adult and pediatric patients in two Israeli hospitals.

Methods: ESBL production was tested according to recommendations of the Clinical and Laboratory Standards Institute, using ceftazidime (30 μg) and a combination of ceftazidime/clavulanate (30/10 μg) disks with a ≥5 mm difference indicating positivity. Antibiotic susceptibilities were determined by the disk diffusion method according to CLSI[2] standards. Minimum inhibitory concentrations were determined by the E-test.

Results: The prevalence of ESBL-producing organisms was significantly higher among K. pneumoniae than E. coli isolates – 32% (241/765) vs. 10% (57/547) respectively (P < 0.001), and more frequently isolated from adults than children (odds ratio 2.27 for K. pneumoniae and 12.94 for E. coli). Resistance rates for amoxicillin/clavulanate, piperacillin-tazobactam, amikacin, and ciprofloxacin among the ESBL-producing K. pneumoniae and E. coli isolates were 95%, 82%, 49% and 77% for K. pneumoniae, and 77%, 35%, 25% and 100% for E. coli. Two (0.8%) ESBL-producing and 4 (0.7%) ESBL-negative K. pneumoniae isolates showed intermediate susceptibility (MIC[3] 6 μg/ml) to meropenem. All isolates were sensitive to ertapenem and colistin.  

Conclusion: ESBL production among K. pneumoniae and E. coli is more prevalent in the adult population than the pediatric population and is associated with multidrug resistance.







[1] ESBL = extended spectrum β-lactamase

[2] CLSI = Clinical and Laboratory Standards Institute (formerly the NCCLS)

[3] MIC = minimum inhibitory concentration





 

September 2003
M. Dan, N. Kaneti, D. Levin, F. Poch and Z. Samra

Background: Vaginal symptoms are a leading reason for a patient to visit her gynecologist. Little is known about the prevalence of the different causes of vaginitis and the risk factors for this entity in Israel.

Objective: To determine the prevalence in a gynecologic practice in Israel of the main forms of vaginitis: vulvovaginal candidiasis, bacterial vaginosis, and trichomoniasis.

Methods: We evaluated 208 patients presenting with vaginal symptoms to a gynecologic clinic; 100 asymptomatic women who attended the clinic for routine check-up served as controls. Demographic, medical and gynecologic histories were obtained, and a pelvic examination was performed in all patients. Vaginal specimens were tested for pH and amine reaction, smeared for Gram-staining and cultured for yeasts and Trichomonas vaginalis. Bacterial vaginitis was diagnosed using the Nugent scoring system. candida infection was diagnosed by microscopic examination and by culture.

Results: Candida spp. was the most common pathogen, documented by microscopy and culture in 35.5% of symptomatic women and 15% of asymptomatic controls (P < 0.001). Detection by culture only (negative microscopy) was documented in 18.7% of symptomatic patients and 15% of controls (P = 0.5). Bacterial vaginosis (Nugent score ≥ 7) was diagnosed in 23.5% of patients and 13% of controls (P = 0.04). Trichomoniasis was present in 8.1% of symptomatic women and 4% of controls (P = 0.1). The main risk factors were antibiotic use for candidiasis and lack of use of oral contraception and condom use for trichomoniasis.

Conclusion: Candida was by far the most common pathogen detected in our population. A statistically significant difference between patients and controls was noted for the prevalence of microscopically diagnosed candidiasis and bacterial vaginosis.
 

Legal Disclaimer: The information contained in this website is provided for informational purposes only, and should not be construed as legal or medical advice on any matter.
The IMA is not responsible for and expressly disclaims liability for damages of any kind arising from the use of or reliance on information contained within the site.
© All rights to information on this site are reserved and are the property of the Israeli Medical Association. Privacy policy

2 Twin Towers, 35 Jabotinsky, POB 4292, Ramat Gan 5251108 Israel