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Biomedical subjects

G Gopal Rao

Publications and source records attributed to G Gopal Rao.

13 recordsLinked to original sources
PubMed2004

Prevention of percutaneous endoscopic gastrostomy site infections caused by methicillin-resistant Staphylococcus aureus.

Percutaneous endoscopic gastrostomy (PEG) is widely used to maintain enteral nutrition in patients who are unable to swallow. Peristomal wound infection is the most common complication of this procedure. In a hospital endemic for methicillin-resistant Staphylococcus aureus (MRSA), MRSA can be the most common organism associated with these infections. We have evaluated a strategy consisting of screening, skin decontamination and glycopeptide prophylaxis for preventing PEG-site infections. None of the 34 patients who received the decontamination protocol and glycopeptide prophylaxis (Group A) developed PEG-site infections within one month of surveillance. Two patients were infected with MRSA after that period. One of seven patients who received the decontamination protocol alone (Group B) was infected within the period of surveillance, while another patient was infected after that period. Both were infected with MRSA. None of nine patients who received glycopeptide prophylaxis alone (Group C) were infected. The results suggest that the strategy of screening, decontamination and glycopeptide prophylaxis is effective in the prevention of PEG-site infections with MRSA. Further trials are necessary to confirm these findings.

Aged↗
PubMed2003

Interaction between methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-sensitive Staphylococcus aureus (MSSA).

In this paper we describe the in vitro interaction between three strains of methicillin-sensitive Staphylococcus aureus (MSSA) [NCTC 11561 and two strains derived from patients (PMSSA)] and endemic methicillin-resistant Staphylococcus aureus (EMRSA) 1, 3, 15 and 16. Mixed bacterial cultures of MSSA and EMRSA were incubated and subcultured after one, two and seven days. A proportion of MRSA in 50 randomly selected colonies was assessed. All strains of EMRSA (EMRSA 1, 3, 15 and 16) outgrew and virtually eradicated MSSA (NCTC 11561) after 24 h. The interaction between strains of PMSSA and the various strains of EMRSA was variable. PMSSA strain 1 was almost completely outgrown by EMRSA 1 and EMRSA 3 after seven days. Similarly there was a substantial increase of EMRSA 1 and 3 when tested against PMSSA strain 2. EMRSA 15 increased modestly against both strains, but EMRSA 16 failed to increase in proportion against either of the strains. We conclude that there is a complex interaction between various strains of EMRSA and MSSA. This interaction may have an important bearing on colonization of patients with MRSA.

Antibiosis↗
PubMed2003

Neisseria elongata endocarditis: case report and literature review.

We describe a case of infective endocarditis due to Neisseria elongata, and review the literature. N. elongata is a constituent of the normal oral flora and a rare cause of infective endocarditis. Unfamiliarity with the organism and its rod-shaped morphology may lead to a delay in microbiological diagnosis. Although the organism is relatively sensitive to antibiotics, our experience in the management of the described case and a review of previous reports suggest that antibiotic therapy alone may not be sufficient. It is likely that patients with N. elongata endocarditis will require surgery.

Anti-Bacterial Agents↗
PubMed2003

Clostridium difficile-associated diarrhoea in patients with community-acquired lower respiratory infection being treated with levofloxacin compared with beta-lactam-based therapy.

The aim of the study was to compare the incidence of Clostridium difficile-associated diarrhoea (CDAD) following treatment of community-acquired lower respiratory tract infection (LRTI) in hospitalized patients with levofloxacin or a beta-lactam-based therapy. Nine hundred and thirty-eight patients were included in the prospective open-labelled "randomized" trial. This included 490 patients treated with levofloxacin and 448 patients treated with beta-lactams such as cefuroxime or amoxicillin. The overall incidence of CDAD was 3.8%. There was a lower incidence of CDAD (P < 0.01) in the patients treated with levofloxacin (levofloxacin group) (11/490; 2.2%) compared with patients treated with beta-lactams (beta-lactam group) (25/448; 5.6%), particularly with cefuroxime (cefuroxime group) (21/229; 9.2%; P < 0.0001). There was no significant difference (P = 0.6) in the incidence of CDAD between patients treated with levofloxacin or amoxicillin (amoxicillin group) (4/219; 1.8%). Patients in the cefuroxime and amoxicillin groups had a significantly longer duration of treatment than patients in the levofloxacin group. Although previous antibiotic therapy was a significant risk factor for CDAD in each of the groups, previous antibiotic therapy or admission to specific wards in the hospital were not confounding factors when comparing the groups. The levofloxacin group had a significantly shorter duration of hospitalization (mean 11.7 days; P < 0.01) compared with the beta-lactam group (mean 13.3 days), especially compared with the cefuroxime group (mean 16 days; P < 0.0000001). The amoxicillin group (mean 10.5 days) had a shorter duration of stay compared with the levofloxacin group, but this was not found to be statistically significant. Patients with CDAD had a longer duration of hospital stay than those without CDAD (CDAD +ve 25.8 days; CDAD -ve 11.9 days; P < 0.0000001). In conclusion, levofloxacin is less likely to be the cause of CDAD and is associated with a shorter duration of hospital stay compared with beta-lactam-based therapy for LRTI.

Aged↗
PubMed2003

Pathology tests: is the time for demand management ripe at last?

With the ever increasing demands for pathology testing within the National Health Service there is a need to manage the demand for these tests. This review discusses strategies for the demand management of requests made by clinicians in the disciplines of biochemistry, haematology, and microbiology. The various approaches that have been used to manage demand will be described, along with specific clinical strategies for demand management.

Clinical Laboratory Techniques↗
PubMed2002

Investigation of a human case of rabies in the United Kingdom.

In May of 2001 a Nigerian woman visiting the United Kingdom presented with fever, headache and difficulty swallowing. Within 24 h she showed a marked deterioration and died shortly afterwards. Autopsy samples from a range of tissues were analysed to confirm a clinical diagnosis of rabies. Phylogenetic analysis of the viral nucleoprotein gene confirmed that this was an infection with a genotype 1 virus (classical rabies) belonging to the Africa 2 group, which is endemic in Northern Africa. Comparison of both the nucleoprotein and glycoprotein coding sequences of this isolate with an imported case of human rabies from 1996, also from Nigeria, showed that the two viruses were 99% homologous.

Amino Acid Sequence↗
PubMed2002

Marketing hand hygiene in hospitals--a case study.

Hand hygiene of healthcare workers is frequently poor despite the efforts of infection control teams to promote hand decontamination as the most important method to prevent transmission of hospital-acquired infections. In this case study, we describe how principles of societal marketing were applied to improve hand hygiene. Pre-marketing analysis of strengths, weaknesses, opportunities and threats to implementation; attention to product, price, promotion and placement; and post-marketing 'customer' surveys were the essential components of the marketing strategy and its implementation. Placement of an alcohol-based gel decontaminant (Spirigel) at the bedside of every patient was widely welcomed in the hospital, and has played a major role in improving hand hygiene of healthcare workers. In the twelve months following the implementation, the decontaminant was used at least 440,000 times. The cost of purchasing the decontaminant was approximately 5000 pounds sterling. Following the introduction of Spirigel, there was a consistent reduction in the proportion of hospital-acquired methicillin-resistant Staphylococcus aureus (MRSA) in each of the quarters of 2000-2001 compared with 1999-2000. In the period 1999-2000, nearly 50% of the MRSA were hospital acquired compared with 39% in 2000-2001. Similarly, the average incidence of Clostridium difficile associated diarrhoea (CDAD) decreased in each of the quarters in 2000-2001 following the introduction of Spirigel. During this period, there was an average incidence of 9.5 cases of CDAD/1000 admissions compared with 11.5 cases of CDAD/1000 admissions in 1999-2000. This represents a 17.4% reduction in the incidence of CDAD. However, this reduction was not statistically significant (P=0.2). Our case study demonstrates that principles of societal marketing methods can be used effectively to promote and sustain hand hygiene in hospitals. Improvement in hand hygiene will lead to considerable reduction in hospital-acquired infections.

Guideline Adherence↗
PubMed2001

Rational protocols for testing faeces in the investigation of sporadic hospital-acquired diarrhoea.

Many recent studies have demonstrated that routine examination of faeces for conventional enteric pathogens such as salmonella, shigella, campylobacter and parasites in patients who develop sporadic hospital-acquired diarrhoea is unnecessary and wasteful. In this paper the advantages and disadvantages of a restricted testing protocol in patients with hospital-acquired diarrhoea are reviewed. Practical issues for safe implementation of such a protocol are also discussed.

Clinical Protocols↗