pattern of antibiotic use in different departments of...
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Pattern of antibiotic use in different departments
of DMCH
Dr. Mostofa Kamal Chowdhury Indoor Medical Officer (MU – I)
Dr. Ashfaque Ahmed Siddique
Indoor Medical Officer (MU – I)
Prof. Dr. HAM Nazmul Ahasan
Professor & Head
Department of Medicine
Dhaka Medical College Hospital
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Antibiotic:
Any of various chemical
substances, produced by
various microorganisms,
esp. fungi, or made
synthetically and capable
of destroying or inhibiting
the growth of micro-
organism
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Throughout history there has been a
continual battle between human beings
and multitude of micro-organisms that
cause infection and disease
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In his 1945 Nobel Prize lecture, Fleming
himself warned of the danger of resistance –
“It is not difficult to make microbes resistant
to penicillin in the laboratory by exposing
them to concentrations not sufficient to kill
them, and the same thing has occasionally
happened in the body… …and by exposing
his microbes to non-lethal quantities of the
drug make them resistant.”
History Nobel Lecture, December 11, 1945
Sir Alexander Fleming
The Nobel Prize in Physiology or Medicine, 1945
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Global scenario • MDR-TB - 4,40,000 new cases annually
• XDR-TB - Reported in 64 countries to date.
• Falciparum malaria - Resistance to earlier generation
antimalarials already. Resistance to artemisinins are
emerging in South-East Asia.
• Hospital-acquired infections - by highly resistant
MRSA and vancomycin-resistant enterococci
• HIV infection – Resistance emerging
• Shigellosis - Resistance to ciprofloxacin
• Gonorrhoea – Resistance to cephalosporins
• NDM-1 (New Delhi metallo-beta-lactamase-1) –
Resistance to almost all powerful antibiotics
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Bangladesh perspective
• MDR-TB - around 3,500 (2012).
• Falciparum malaria - Drug resistance to chloroquine
(40-70%) and sulphadoxine-pyrimethamine
• Pseudomonas aeruginosa – resistant to >50%
commonly-used antibiotics
• Shigella dysenteriae – 95% resistant to ampicillin,
cotrimoxazole and nalidixic acid and 14%-40% were
resistant to methicillin (1996)
• Klebsiella, Acinatobactor, E coli, coagulase negative
staphylococci and Staphylococcus aureus -
Maximum sensitive drugs are imipenem,
ciprofloxacin, gentamycin and cotrimoxazole
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Resistance pattern of S. typhi in Khulna Medical College
Hospital (1991-1992) [n = 100]
Name Sensitive
(%)
Moderately
sensitive
(%)
Weakly
Sensitive
(%)
Resistant
(%)
Ampicillin 10 4 8 76
Amoxicillin 2 6 6 85
Cotrimoxazole 3 8 2 87
Chloramphenicol 19 4 4 76
Macillinam 7 12 0 12
Ceftriaxone 66 17 12 3
Ciprofloxacin 100 0 0 0
“Multi-Drug Resistant Type of Typhoid Fever In Khulna and Consequent Problems of Treatment” (1991-1992) Dr. HAM Nazmul Ahasan, F.C.P.S., Dr. Mahbubur Rahman M.B.B.S
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Ciprofloxacin is no more a drug for
empirical therapy for the treatment
of enteric fever in almost all
countries of the world unless a
complete ciprofloxacin susceptibility
is proved.
Enteric fever: Bangladesh perspective
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Antibiotics are available as non-
prescription drugs in pharmacies and
irrational use is not uncommon.
Diagnosis and treatment of most of the
bacterial diseases are “empirical”.
Microbial sensitivity patterns of common
infections like RTI, UTI, enteric fever,
wound infection are not routinely
available for decision making in drug
selection.
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Lack of hospital restrictions on
antibiotic use and inappropriate
usage for prophylaxis are the main
reasons for inappropriate therapy.
Antibiotics are frequently prescribed
inappropriately in terms of type,
dose, duration and indication
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Pattern of antibiotic use in different departments
of DMCH
Mostofa Kamal Chowdhury1, Ashfaque Ahmed Siddique1, HAM Nazmul Ahasan2
1. Indoor Medical Officer, Department of Medicine, Dhaka Medical College Hospital
2. Professor & Head, Department of Medicine, Dhaka Medical College Hospital
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Materials & Methods
In this observational study, hospital
records of total 400 patients were
surveyed on 2 separate days. Patients
of both sexes from different
departments receiving antibiotics were
included in the study. Data was
collected in a predesigned data
collection sheet.
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Results
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Distribution of patients (n=400)
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Age distribution (n=400)
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Sex distribution of patients (n= 400)
(53.5%) (46.5%)
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MEDICINE
CVD 26 (22.4%)
Malignancy 13 (11.2%)
DM + HTN + CKD 13 (11.2%)
CLD 11
Meningo-encephalitis 9
Pneumonia 8
COPD 7
TB 7
UTI 5
Enteric fever 4
Others 13
Total 116
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Total patients 116 (100%)
Culture done/ advised 15 (12.93%)
Antibiotic used
(No. of patients)
Ceftriaxone 73 (62.9%)
Metronidazole 20 (17.2%)
Ciprofloxacin 11 (9.5%)
Cefuroxime 6
Levofloxacin 2
Amikacin / Gentamicin 4
Vancomycin 2
Flucloxacillin 3
Co-amoxiclav 7
Clarithromycin 3
Meropenem 1
Anti - TB 4
Combined Antibiotic 27 (23.3%)
MEDICINE
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Total patients 45 (100%)
Culture done/ advised 3 (6.7%)
Antibiotic used
(No. of patients)
Ceftriaxone 24 (53.3%)
Metronidazole 19 (42.2%)
Ceftazidime 3
Cefixime 4
Ciprofloxacin 6
Amikacin / Gentamicin 3
Cefuroxime 6
Clindamycin 1
Combined Antibiotic 24 (53.3%)
SURGERY
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Total patients 30 (100%)
Culture done/ advised 4 (13.3%)
Antibiotic used
(No. of patients)
Metronidazole 22 (73.3%)
Ciprofloxacin 19 (63.3%)
Ceftriaxone 5
Azithromycin 2
Flucloxacillin 1
Combined Antibiotic 24 (80%)
Diagnosis
Uterine prolapse 10 (33.3%)
Fibroid uterus 4
Benign Ovarian tumour 4
Malignancy 5
Ruptured ectopic pregnancy 2
Perineal tear 3
Others 2
GYNAE
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Total patients 28 (100%)
Culture done/ advised 00 (0%)
Antibiotic used
(No. of patients)
Ceftriaxone 27 (96.4%)
Cefixime 1
Combined Antibiotic 00
OBSTETRICS
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PAEDIATRICS
Neonatal + LBW complications 24 (28.6%)
Nephrotic syndrome + GN 11 (13.1%)
Septicaemia 3
Malignancy 5
RTI/ Pneumonia / Bronchiolitis 9
Meningo-encephalitis 8
TB 4
Enteric fever 3
Others 17
Total 84 (100%)
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Total patients 84 (100%)
Culture done/ advised 21 (25%)
Antibiotic used
(No. of patients)
Ceftriaxone 37 (44%)
Amikacin / Gentamicin 26 (30.1%)
Ceftazidime 16
Cefotaxime 04
Ciprofloxacin 06
Metronidazole 06
Vancomycin 06
Penicillin 21
Meropenem 06
Anti - TB 02
Combined Antibiotic 50 (59.5%)
PAEDIATRICS
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Total patients 41 (100%)
Culture done/ advised 5 (12.2%)
Antibiotic used
(No. of patients)
Ceftriaxone 19 (46.3%)
Amikacin / Gentamicin 13 (31.7%)
Levofloxacin 10
Ceftazidime 7
Flucloxacillin 4
Ciprofloxacin 4
Metronidazole 4
Vancomycin 2
Meropenem 6
Combined Antibiotic 28 (68.3%)
Diagnosis
Head injury + RTA 19 (46.3%)
CVD 10 (24.4%)
GBS 7
Others 5
ICU
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Culture NOT done / advised (total=352)
Culture done / advised (total =48)
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Ceftriaxone 199 (49.75%) Vancomycin 10 (2.5%)
Metronidazole 71 (17.5%) Cefixime 10 (2.5%)
Ciprofloxacin 51 (12.75%) Co-amoxiclav 9 (2.25%)
Amikacin /
Gentamicin
46 (11.5%) Clarithromycin 3 (0.75%)
Penicillin 24 (6%) Cefotaxime 4 (1%)
Levofloxacin 16 (4%) Clindamycin 1 (0.25%)
Flucloxacillin 15 (3.75%) Azithromycin 2 (0.5%)
Meropenem 14 (3.5%) Cotrimoxazole 1 (0.25%)
Cefuroxime 12 (3%) Anti TB 7 (1.75%)
Combined antibiotic 162 (40.5%)
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Antibiotic Resistance Cycle
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Faulty Antibiotic Use
• Antimicrobials are over prescribed
• Available without prescription
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Over Prescribed Antibiotics
• Clinician should first determine whether antimicrobial therapy is warranted for a given patient
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Empirical Anti-Microbial Selection
• Is antimicrobial agents indicated on the basis of clinical findings?
Or is it prudent to wait until such clinical findings become
apparent?
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Empirical Anti-Microbial Selection
• Can some simple bed side test be done to confirm your suspicion?
– Microscopy
– Gram staining
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Empirical Anti-Microbial Selection
What are the likely etiologic agents for the patient’s illness?
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Is there clinical evidence (e.g. from clinical trials) that antimicrobial therapy will confer clinical benefit for the patient?
(Evidence-based medicine)
Empirical Anti-Microbial Selection
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Can a narrower spectrum agent be substituted for initial empiric drug?
Definitive Treatment
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Definitive Treatment
Is one agent or combination of agents necessary?
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Definitive Treatment
What are the
– optimum dose,
– route of administration and
– duration of therapy?
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Definitive Treatment
What adjunctive measures can be undertaken to eradicate infection?
– Vaccination
– Steroid
– Drainage of pus
– Amputation
– Removal of catheter
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Hospital Acquired Drug Resistance
• Hospital Antibacterial Policy
• Hospital Antibiogram: Hospital specific antibacterial Resistance Pattern
• Identification of potential pathogen most likely to cause infection
• Prescription auditing
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Take Home Message
• Target definitive therapy to known pathogen
• Treat ‘infection’, not ‘contamination’, not ‘colonization’
• Isolate Pathogen
• Start simple bed side test: Gram stain, microscopy
• Know when to say “no” to Vancomycin, Carbepenems and Cephalosporin IV Generation
• Break the chain of contagion – Keep your hands clean.
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