Annual consumption of parenteral antibiotics in a tertiary hospital of Nepal, 2017-2019: a cross-sectional study.

SETTING: Patan Hospital, a tertiary care hospital in Lalitpur District, Nepal. OBJECTIVES: To describe the annual parenteral antibiotic consumption in 1) defined daily dose (DDD) and DDD per 100 admissions; 2) calculate DDD per 100 admissions and proportions by pharmacological subgroup, chemical subgroup and AWaRe categories; and 3) describe patient expenditure on parenteral antibiotics as a proportion of the total patient expenditure on drugs and consumables between 2017 and 2019. DESIGN: This was a cross-sectional study. RESULTS: Total DDD of parenteral antibiotics increased by 23% from 39,639.7 in 2017 to 48,947.7 in 2019. DDD per 100 admissions increased by 10% from 172.1 in 2017 to 190.2 in 2019. Other beta-lactam antibacterials comprised the most frequently consumed pharmacological subgroup. The chemical substance most often consumed was ceftriaxone, with an increasing trend in the consumption of vancomycin and meropenem. Parenteral antibiotics in 'Watch' category were the most consumed over the study period, with a decreasing trend in 'Access' and increasing trend in 'Reserve' categories. CONCLUSION: We aimed to understand the consumption of parenteral antibiotics at a tertiary care hospital and found that Watch antibiotics comprised the bulk of antibiotic consumption. Overconsumption of antibiotics from the 'Watch' and 'Reserve' categories can promote antimicrobial resistance; recommendations were therefore made for their rational use.

CONTEXTE: Hôpital de Patan, un hôpital de soins tertiaires du District de Lalitpur, Népal. OBJECTIFS: Décrire la consommation annuelle d'antibiotiques parentéraux en 1) dose définie journalière (DDD) et DDD pour 100 admissions ; 2) calculer la DDD pour 100 admissions et les pourcentages par sous-groupe pharmacologique, sous-groupe chimique et catégories de la classification AWaRe ; et 3) décrire les dépenses des patients en antibiotiques parentéraux en tant que proportion du total des dépenses des patients en médicaments et consommables de 2017 à 2019. MÉTHODE: Il s'agissait d'une étude transversale. RÉSULTATS: La DDD totale d'antibiotiques parentéraux a augmenté de 23%, de 39 639,7 en 2017 à 48 947,7 en 2019. La DDD pour 100 admissions a augmenté de 10%, de 172,1 en 2017 à 190,2 en 2019. Les autres bêtalactamines étaient le sous-groupe pharmacologique le plus consommé. La substance chimique la plus consommée était la ceftriaxone, avec une tendance à la hausse de la consommation de vancomycine et de méropénème. Les antibiotiques parentéraux du groupe « antibiotiques à utiliser sélectivement ¼ étaient les plus consommés pendant la période d'étude, avec une tendance à la baisse de ceux du groupe « antibiotiques dont l'accessibilité est essentielle ¼ et une tendance à la hausse de ceux du groupe « antibiotiques de réserve ¼. CONCLUSION: Nous avons cherché à comprendre la consommation d'antibiotiques parentéraux dans un hôpital tertiaire et avons observé que les « antibiotiques à utiliser sélectivement ¼ représentaient la majorité de la consommation d'antibiotiques. La surconsommation d'« antibiotiques à utiliser sélectivement ¼ et d'« antibiotiques de réserve ¼ peut favoriser la résistance antimicrobienne. Des recommandations ont donc été émises pour un usage raisonné de ces antibiotiques.

Emergence of Aminoglycoside Resistance Due to armA methylase in Multi-drug Resistant Acinetobacter Baumannii Isolates in a University Hospital in Nepal.

BACKGROUND: The emergence of multidrug-resistant Acinetobacter baumannii associated with hospital-acquired infections has been increasingly reported worldwide. 16S rRNA methylase producing Gram-negative bacteria are highly resistant to all clinically important aminoglycosides. We analyzed A. baumannii clinical isolates resistant to aminoglycosides from hospitalized patients. The objective of this study was to investigate the emergence of armA in A.baumannii species associated with nosocomial infection in a university hospital in Nepal. METHODS: This was a cross-sectional study conducted at the department of Clinical Microbiology, Tribhuvan University Teaching Hospital (TUTH), from December 2013 to December 2014. A total of 246 Acinetobacter species were isolated from different patients were screened for MDR A. baumannii. Identification at the species level was confirmed by 16S rRNA sequencing. Drug susceptibility testing was performed by Kirby- Bauer disc diffusion method and minimum inhibitory concentrations (MICs) were determined using the guidelines of the Clinical and Laboratory Standards Institute (CLSI). Screening for 16S rRNA methylase-production was done for the isolates resistant to gentamicin and amikacin. Detection of 16S rRNA methylase gene was done by PCR. RESULTS: All 122 multidrug-resistant A. baumanniiisolates were resistant to majority of the antibiotics used except polymyxin and tigecycline. Ninty-six MDR A. baumannii isolates had MICs of > 512 mg/L to amikacin and arbekacin indicating their high resistance to aminoglycosides.Of the 96 pan-aminoglycoside resistant isolates, 75 isolates had 16SrRNAmethylasewith all isolates harboring armA gene. CONCLUSIONS: This is the first report describing multidrug-resistant A. baumannii strains harboring armA from hospitalized patients in Nepal. A methylase gene (armA), conferring high level of resistance to aminoglycosides, was detected in majority of our isolates.

Phenotypic Characterization of Multidrug-resistant Escherichia Coli with Special Reference to Extended-spectrum-beta-lactamases and Metallo-beta-lactamases in a Tertiary Care Center.

INTRODUCTION: The increasing reports on extended-spectrum-beta-lactamase and metallo-beta-lactamase producing Escherichia coli have addressed a potential threat to global health since it is found to be highly resistance to most of the currently available antibiotics including carbapenems. The present study was aimed to determine the antibiogram of extended-spectrum-beta-lactamase and metallo-beta-lactamase producing MDR E. coli isolates from various clinical samples. METHODS: This was a cross-sectional study conducted over a period of seven months from December 2013 to July 2014 at bacteriology laboratory of Tribhuvan University Teaching Hospital. A total of 250 clinical specimens (urine, pus, sputum, blood, body fluid, bile, tissue and central venous pressure line tip) were processed from inpatients, with multidrug-resistant Escherichia coli infections. Standard microbiological techniques were used for isolation and identification of the isolates. The presence of extended-spectrum-beta-lactamase was detected by phenotypic confirmatory test recommended by Clinical and Laboratory Standards Institute and imipenem (IMP) /EDTA combined disc method was performed to detect metallo-beta-lactamase mediated resistance mechanism. RESULTS: We found high level of beta lactamase mediated resistance mechanism as part of multidrug resistance. Among 250 MDR isolates, 60% isolates were extended-spectrum-beta-lactamase producers and 17.2% isolates were metallo-beta-lactamase producers. Co-existence of extended-spectrum-beta-lactamase and metallo-beta-lactamase identified in 6.8% isolates. CONCLUSIONS: Beta-lactamase mediated resistance mechanisms are accounting very high in the multidrug resistant isolates of E. coli. Therefore, early detection of beta lactamase mediated resistant strains and their current antibiotic susceptibility pattern is necessary to avoid treatment failure and prevent the spread of MDR.

Inadequate Empirical Antibiotic Therapy in Hospital Acquired Pneumonia.

INTRODUCTION: Inadequate empirical antibiotic therapy for HAP is a common phenomena and one of the indicators of the poor stewardship. This study intended to analyze the efficacy of empirical antibiotics in the light of microbiological data in HAP cases. METHODS: Suspected cases of HAP were followed for clinico-bacterial evidence, antimicrobial resistance and pre and post culture antibiotic use. The study was taken from February,2014 to July 2014 in department of Microbiology and department of Respiratory medicine prospectively. Data was analyzed by Microsoft Office Excel 2007. RESULTS: Out of 758 cases investigated, 77(10 %) cases were HAP, 65(84%) of them were culture positive and 48(74 %) were late in onset. In early onset cases, isolates were Acinetobacter 10(42%), Escherichia coli 5(21%), S.aureus 4(17%), Klebsiella 1(4%) and Pseudomonas 1(4%). From the late onset cases Acinetobacter 15(28%), Klebsiella 17(32%) and Pseudomonas 13(24%) were isolated. All Acinetobacter, 78% Klebsiella and 36% Pseudomonas isolates were multi drug resistant. Empirical therapies were inadequate in 12(70%) of early onset cases and 44(92%) of late onset type. Cephalosporins were used in 7(41%) of early onset infections but found to be adequate only in 2(12%) cases. Polymyxins were avoided empirically but after cultures were used in 9(19%) cases. CONCLUSIONS: Empirical antibiotics were vastly inadequate, more frequently so in late onset infections. Use of cephalosporins empirically in early onset infections and avoiding empirical use of polymyxin antibiotics in late onset infections contributed largely to the findings. Inadequate empirical regimen is a real time feedback for a practitioner to update his knowledge on the local microbiological trends.

Status of Vitamin D and its Association with Stroke Risk Factors in Patients with Acute Ischemic Stroke in a Tertiary Care Hospital.

INTRODUCTION: Vitamin D deficiency has been associated with many neurological illnesses. The status of Vitamin D in Nepalese ischemic stroke patients is still unknown. This study aims to assess the status of vitamin D and its association with stroke risk factors in patients with acute ischemic stroke from Central Nepal. METHODS: A total of 60 patients with ischemic stroke were included in the study. Their clinical profile and Vitamin D status were assessed. Frequency distribution, Pearson χ2test and Kruskal-Wallis test were performed for statistical analysis using SPSS-IBM 20. RESULTS: The median (IQR) age of the patient was 65 (53.25, 70.75) years, ranging from 18-87 years. Thirty-four (56.7%) were males. Fourty-eight (80%) patients had hypertension and 34 (56.7%) were smoker. Previous stroke was present in six (10%) cases. Thirty-seven (61.6%) patients had low levels of Vitamin D out of which 26 (43.3%) had vitamin D insufficiency and 11 (18.3%) had vitamin D deficiency. Vitamin D level was significantly associated with previous history of stroke (P=0.043). CONCLUSIONS: Vitamin D deficiency occurs in patients with ischemic stroke. Previous episodes of stroke with low vitamin D levels could be a cause of recurrent strokes. Further studies are necessary to establish the role of vitamin D in acute ischemic stroke in Nepalese population.

Kinship care at community is better model to ensure psychosocial and economic security to orphans living with HIV than from care homes.

BACKGROUND: There were about 24,000 children affected by AIDS living in Nepal in 2010; of these 5,000 AIDS orphans were in need of immediate support. The objective of this study was to investigate which model of care and support is more appropriate for improving psychosocial and economic security of AIDS orphans. METHODS: With the documented 5200 cases of AIDS orphans from 42 districts at National Association of People Living with HIV, we purposively selected five districts - one from each development region, based on the highest number of AIDS orphans reported. From five districts, 56 HIV positive double orphans aged 8-18 years and their 42 caregivers were interviewed to find their psychosocial and economic situation. RESULTS: Thirty nine (70%) orphans were found living in kinship care, while 17(30%) were living in institutional care homes. Orphans living in kinship were more optimistic, as they were backed by their close relatives 35 (90%), had birth certificates 35 (90%), ensured inherent family property 21 (54%), obtained basic needs like food, education and shelter from grandparents 23 (59%), and had more than five friends who visited their homes 26 (67%). While, the orphans living in institutional care homes 17(30%) had no birth certificates, fewer contacts with siblings 2 (12%), and none had friends outside the care homes. CONCLUSIONS: Kinship care is better model for psychosocial and economic security for AIDS orphans in Nepal, rather than institutional care. Families can provide good protection to AIDS orphans if government provides minimum support to them.

Thyroid hormone levels in highlanders- a comparison between residents of two altitudes in Nepal.

BACKGROUND: The endocrine changes related to altitude adaptation in human have attracted physiologists around the globe for long. A number of high altitude studies to detect the physiological changes have been performed now and then. But, the study to see the hormonal changes to compare populations residing at different high altitudes is a scarce. Hence, we have performed a study in native populations of different high altitude comparing changes in thyroid hormones in western Nepal. The Jharkot population included in this study is at altitude of 3760 m and Jomsom population at 2800 m height from sea bed. OBJECTIVE: The study is to compare changes in thyroid hormones at two different high altitude natives. METHODS: To compare thyroid status between high altitude natives at two different altitudes a cross sectional study is performed by random sampling method. The blood sample was collected in a vacutainer from fifty eight individuals after obtaining the informed consent of participants. The blood collected from antecubital vein was centrifuged in an hour and the serum obtained was used for biochemical analysis of free triiodothyronine, free thyroxine and thyroid stimulating hormone. RESULTS: Mean free thyroxine (fT4) of Jharkot population is significantly larger (p = 0.001) than Jomsom population. Mean thyroid stimulating hormone (TSH) with p = 0.597, does not indicate the difference between this two population. There is no significant difference between mean free triiodothyronine (fT3) of Jharkot and Jomsom population (p = 0.345). CONCLUSION: The rise in free thyroid hormone at high altitude is not dependent on the thyroid stimulating hormone released from anterior pituitary. The rise in free thyroxine is found at higher altitude and no difference in fT3 level is detected in population studied at high altitudes.

Effect of sub-maximal exercise stress on cold pressor pain: a gender based study.

BACKGROUND: Analgesic effect of exercise is a well established fact; however available reports are contradictory on gender differences in pain perception following exercise stress test. OBJECTIVE: The current study is prospectively designed to evaluate and compare the effect of acute bout of sub-maximal exercise stress on cold pressor pain in normal adult males and females. METHOD: The experimental study design involved healthy adults (n= 41); females (n = 18) and males (n=23) aged between 18 to 25 years and included them into four sets of experiments: SET I (Control), "resting blood pressure, radial pulse and respiratory rate were recorded after 15 minutes of complete supine relaxation. SET II (Cold Pressor Pain Test): Pain Threshold, Pain Tolerance, and Pain Duration in seconds were taken. SET III (Exercise Stress Test): Sub-maximal exercise of 70 to 75% of maximum predicted heart rate was given for 6 minutes. SET IV (Cold Pressor Pain Test immediately after Exercise Stress Test): At 0 minute of recovery again the pain parameters; Pain Threshold, Pain Tolerance, and Pain Duration in seconds were taken. SET I, SET II were performed in order on the first day and SET III and SET IV on the second day to ensure only a single Cold Pressor Pain Test is performed in each day. RESULT: The data (Mean ± SD) analysis showed significant increased in pain threshold (males: 14.36 ± 10.6 Vs 21.47 ± 13 seconds, p< 0.001, females: 14.1 ± 11.5 Vs 23.81 ± 20.22 seconds, p<0.001) and pain tolerance time (males: 41.3 ± 19.31 Vs 54.1 ± 21.7 seconds, p<0.001) in both sexes after 6 min of acute bout of sub-maximal exercise stress test with comparable age, BMI and baseline resting values of pain parameters and pulse rate and blood pressure. The percentage increment pain tolerance time following the exercise stress in female is higher than male (78.6 Vs 68.9%). CONCLUSION: The result suggests that pain sensation decreases immediately after a brief period of exercise challenge irrespective of gender, and the analgesic effect of the acute bout of exercise in terms of pain tolerant time is more enhanced in females than males.

Hospital-based study in children with rotavirus gastroenteritis and other enteropathogens.

BACKGROUND: Rotavirus is the most common cause of life threatening gastroenteritis in infants and young children in the world. The objective of the study is to find out current trends and incidents of rotavirus, including other enteropathogens related with children diarrhoea and lastly identify the most common rotavirus serotypes that circulate in Nepal. METHODS: A total of 1721 stool samples from less than 5 years of children were collected. Rotavirus in the stool samples were detected by Enzyme Immuno Assay (EIA) and strains were genotyped by Reverse-Transcription Polymerase Chain Reaction (RT-PCR). Bacteria and parasites were detected by following standard microbiological procedures. RESULTS: In between 2009 to 2010, of the total 1721, the prevalence of rotavirus was 24.7%. Of them, 906 (52.6%) were collected in the year 2009 and 815(47.5%) in the year 2010. Rotavirus was frequently detected in inpatients (31.6%) than outpatient (16.8%). Rotavirus detection was higher in female (26.4%) than male (23.7%). The prevalence was seen higher in age group 0-23 months in both years. Among six different bacterial isolates, Escherichia coli was most frequently isolated (6.5%). Similarly, Giardia lamblia (1.3%) was most common among six different parasites detected. A total of rotavirus positive 425 stool samples were detected over 2 years (2009-230, and 2010-195), G12P6 was the predominant strain circulating in both (45% in 2009 and 28% in 2010) years. G9P6 emerged in 2010 (6%). There were significant numbers of mixed infections (14.0% in 2009 and 29.8% in 2010). Thirty five samples were partially typed and 15 were completely untyped over the two year period. CONCLUSIONS: The study helps comprehend the prevalence of rotavirus along with other intestinal pathogens including bacteria and parasites. Major genotypes of rotavirus are also introduced in the study.

Bacterial etiology of acute diarrhea in children under five years of age.

BACKGROUND: Diarrheal diseases are major problem of developing countries. Though precise data on childhood mortality associated with diarrheal diseases in Nepal is not available, it has been estimated that approximately 25% of child death are associated with diarrheal disease, particularly acute diarrhea. The purpose of this study was to assess the incidence of bacterial pathogens causing acute diarrhea in children under 5 years of age. METHODS: A total of 525 children with acute diarrhea in a children's hospital of Kathmandu, Nepal were enrolled between April 2011 to September 2011. Feacal specimens for culture were inoculated to the several media. The organisms were identified by different biochemical tests and serotyping. Their antibiotic sensitivity tests were performed by Kirby-Bauer's disc diffusion method as recommended by CLSI. RESULTS: Out of total 525 enrolled cases bacterial infection was found to be 46 (8.8%). Bacterial infection was found to be of highest, 36 (78.3%) in the age group between 6-24 months. Among the total enrolled cases the prevalence of Shigella species was 24 (4.6%) followed by Escherichia coli 12 (2.3%) and Salmonella species 10 (1.9%). Chloramphenicol and Tetracycline showed efficacy in 9 (90.0%) isolates of Salmonella species, Gentamycin showed efficacy in 22 (91.7%) isolates of Shigella species and Chloramphenicol showed 100% efficacy against Escherichia coli whereas 7 (70.0%) isolates of Salmonella species were resistant to ampicillin in vitro. MDR was highest 7 (70.0%) in Salmonella species. CONCLUSIONS: The bacterial pathogens were found to be a significant cause of acute diarrhea. The most common causative organism for acute diarrhea were Shigella spp. Awareness of improving hygiene and infectious diseases may reduce the burden of infection.

Metallo-beta-lactamase producing gram-negative bacterial isolates.

BACKGROUND: The global emergence of metallo-ß-lactamase (MBL) producing bacterial isolates causing lower respiratory tract infection (LRTI) has resulted in fewer therapeutic options in treatment modalities. However, to our knowledge no studies regarding MBLs had been done so far in Nepal. Therefore, this study was carried out to assess the current level of MBL producing bacterial isolates in our setup. METHODS: This was a cross-sectional study conducted over a period of six months (June to November 2008) at Bacteriology laboratory of a teaching hospital. A total of 1120 specimens representing lower respiratory tract (sputum, endotracheal secretion and bronchial washing) were processed from outpatients and inpatients, with suspected LRTI, at TUTH. The specimens were collected and processed according to the standard methodology. Combination disk method and Double disk synergy test methods were used for the detection of MBL producing isolates. RESULTS: Respiratory pathogens were recovered from 497 (44.4%) of suspected cases. Among these, gram-negative bacteria were observed in 448 (84.0%). Multidrug resistance (MDR) was found in 286 (53.7%) of the total bacterial isolates. MBL was present in 6 (1.3%) of the total 448 gram-negative isolates. MBL was detected by both DDST and CD methods in 3 isolates each of Pseudomonas aeruginosa and Acinetobacter spp. from inpatients. All MBL producers were MDR. CONCLUSIONS: MBL-producing gram negative bacteria were detected from LRTI isolates in this study and this data can be used as base-line information of this novel type of ß-lactamase in our setup.

Studies on extended spectrum beta lactamase (ESBL) producing salmonella isolates from clinical samples of Nepal.

Present study was carried out among the patients of age 2-60 years from November 2009 to November 2011 to assess the production of Extended Spectrum Beta Lactamase (ESBL) by salmonella enterica serotype (Typhi and paratyphi A) at Kanti Children's Hospital (KCH), Nepal Medical College (NMC), Kathmandu Medical College (KMC), National Public Health Laboratory (NPHL) and Sankata Laboratory (SKL) of Nepal. Blood cultures were obtained from 4,820 patients with febrile illnesses. 400 strains of salmonella enterica were isolated. Antibiotic susceptibility testing was carried out using disk diffusion method by Kirby-Bauer technique and ESBL screening were done by Double Disk Synergy Test (DDST), following the Clinical and Laboratory Standard Institute (CLSI) recommendations for Escherichia coli. Male had higher infection (56%) than female (44%). Highest number of culture positive cases were (37%) in 10-19 years of age groups. Highest episodes of enteric fever cases occurred during April - June (45%) followed by July-September (35%). Among the total isolates 286 (72%) were Multidrug resistance (MDR). All the Multidrugs resistance salmonella, resistant to third generation Cephlospornis were ESBL producers.

Health seeking behavior during pregnancy and child birth among Muslim women of Biratnagar, Nepal.

Maternal mortality remains one of the biggest public health challenges in Nepal. This paper explores the health seeking behavior, during pregnancy and child birth in certain ethnic group. The poverty, illiteracy, women's low status in the society, lack of access and difficult geographical terrain are major reasons for poor maternal health status in Nepal. Cross-sectional study was conducted among 200 Muslim women of ward # 7 of Biratnagar municipality. They were interviewed to understand their health seeking behavior during pregnancy and childbirth, factors associated with use of health services and their role in the family. Information's on usages of health services, education level, family stricture, and occupational status, information were collected using a pretested and structured questionnaire. The overall institutional delivery in study population was found 24.5%. Low socio-economic status, Illiteracy and poverty in women are the major challenging features of pregnancy and child birth.

Pheripheral airway responsiveness to sub-maximal exercise in asymptomatic cigarette smokers.

BACKGROUND: Cigarette smoking is one of the cardinal causes for the development of bronchial hyperresponsiveness among the smokers. OBJECTIVES: This study was perspectively designed to determine the peripheral bronchial responsiveness to sub-maximal exercise challenge in the asymptomatic smokers. METHODS: The subjects were between age of 18-25 years without any findings of cardiorespiratory diseases. We performed the 5 min step test exercise at intensity of 80 to 90% of maximum predicted heart rate in 42 young adult male asymptomatic smokers to examine the effect of cigarette smoking on airway responsiveness. Forced expiratory spirogram was recorded before and at 0, 5, 10, 15 min after the completion of exercise. Pre- to post exercise drop in Forced Expiratory Volume in first second ≥ 15% was considered hyperresponsive to the challenge. RESULT: The analysis of data (mean ± SE) indicated the bronchial hyper-responsiveness in 22 (52%) smokers. The post exercise recovery time pattern showed drop in forced expiratory spirogram from the resting baseline in the responsive smokers and the maximum percentage fall in the parameters or increase in airway resistance which reflect the peripheral airway integrity such as Forced Expiratory Flow 25% (20.30 ± 2.18 Vs 7.88 ± 3.23, p < 0.01), Forced Expiratory Flow 50% (18.46 ± 4.40 Vs 1.93 ± 2.78, p < 0.01), Forced Expiratory Flow 75% (23.94 ± 3.68 Vs 0.80 ± 4.72, p < 0.001) and Forced Expiratory Flow 25-75% (32.50 ± 4.79 Vs 3.64 ± 3.32, p < 0.001) was significantly higher in the responsive than non-responsive subgroup of the smokers. CONCLUSION: The occurrence of peripheral airway resistance is more in the responsive than nonresponsive subset of smokers to the exercise challenge and hence more prone to develop obstructive airway disease in the long run.

Onychomycosis: clinical pattern and prevailing fungi in Kathmandu.

Onychomycosis is a chronic mycotic infection of finger and toe nails that affects the quality of life in a significant proportion. The study was aimed to identify the clinical patterns and etiological agents of onychomycosis. The study population comprised of the suspected cases of onychomycosis, attending the outpatients department of Dermatology of Tribhuvan University Teaching Hospital, Kathmandu, during November 2006 to March 2008. Detailed history was taken and clinical pattern was noted. Nail sample was obtained from patients with suspected onychomycosis and was subjected for direct microscopy and fungal culture. After first inoculation, the culture tubes were examined every day for one week and thereafter weekly and the fungus was identified. A total of 218 patients were included in the study. The age of the patients ranged from 4 to 88 years with mean of 32.8 +/- 15.4. Maximum of the patients were in the age group of 21-30 years. M: F ratio was 1.05:1. Duration of the disease varied from 1 month to 15 years. Direct microscopy was positive in 64.22% and culture was positive in 41.7%. Dermatophytes were isolated in 54.9%, yeasts in 39.6% and non-dermatophyte molds in 5.5%. As a whole, Trichophyton rubrum was the most common fungal isolate (82%). Yeast infection was more common in females. Yeast was significantly more commonly implicated as a pathogen in finger nail onychomycosis. Dermatophytes were more frequently isolated from toe nail onychomycosis. In conclusion, T rubrum was the most common fungal isolate.

Opportunistic infections in relation to CD4 level among HIV seropositive patients from central Nepal.

CD4 cells status of HIV patients provides one of the benchmarks against the progression of HIV/AIDS. Regular investigation of opportunistic infection in HIV patients is one of the major components of HIV/AIDS care and support service. Between October 2007 and May 2008, a cross-sectional analytical study was carried out in Tribhuvan University Teaching Hospital with an objective to find the relationship between CD4 level and opportunistic infections. After taking informed consent pre-structured questionnaire was filled and specimens were collected to investigate major opportunistic infections (OIs) as per standard microbiological procedure. All the information were entered into SPSS 11.5 system and analyzed. Of the 150 patients, 100 (66.7%) were males and 50 (33.3%) were females. The age group 21-30 years was predominant (42.7%) followed by 31-40 years (42%). Oral candidiasis was found to be the predominant OIs (32.0%) followed by streptococcal pneumonia (28.7%), Salmonella infection (20.7%), cryptosporidial infection (19.3%) and tuberculosis (10.0%). Significant relationship could be established between low CD4 count (<200) and the appearance of oral candidiasis (/2=9.16, p<0.05) but no such relationship could be established regarding other OIs. So, it can be concluded that appearance of oral candidiasis is the strong evidence of advanced stage of HIV infection.

Upper gastro-intestinal bleeding: aetiology and demographic profile based on endoscopic examination at Dhulikhel Hospital, Kathmandu University Hospital.

BACKGROUND: The upper gastrointestinal bleeding (UGIB) is defined as bleeding within the intraluminal gastrointestinal tract from any location between the upper oesophagus to the duodenum at the ligament of Treitz. It is one of the important medical emergencies worldwide. OBJECTIVE: The objective of this study is to study the aetiology of upper gastrointestinal bleeding based on endoscopic examination findings in patients of various demographic characteristics. MATERIALS AND METHODS: This is a retrospective observational study. The endoscopic record book from 2007 January to 2009 October was reviewed for all the cases who underwent oesophago-gastro-duodenoscopic examination for upper GI bleeding. The clinico-epidemiological data of all the patients was reviewed and analyzed in concert with the aetiology of bleeding. RESULTS: A total of 90 patients (58 males, 32 females; mean age 45.32+ 18.47 years) of upper gastrointestinal bleeding was studied and analyzed in terms of aetiology of bleeding and demographic profile. Among the ethnic groups, Aryan 46 (51%) was the most common ethnic group to have upper GI bleeding followed by Newars 24 (27%), Mongolians 16 (18%), Dalits 3 (3%) and others 1 (1%). Out of 90 patients, 47( 52.2%) cases was less than 45 years of age, 30(33.3%) of 46 to 65 age ; and 13(14.4 %) more than 65 years of age. Gastric ulcer 23(25.6%) was the most common endoscopic finding, followed by oesophageal varices 14 (15.6%), acute erosive/haemorrhagic gastropathy 11 (12.2%), duodenal ulcer 9(10%), growth 7(7.8%), vascular lesions 3(3.3%), Mallory-Weiss tear 1(1.1%), fundal varices 1(1.1%) and, no cause was identified in 21(23.3%) cases. The peptic ulcer bleeding was the most common finding in Aryan 22(47.9%), whereas oesophageal varices and growth were more common in Newar 7(29.2%) and 3 (12.5%) respectively. CONCLUSION: Peptic ulcer disease is the most common cause of upper GI bleeding which was most commonly found in Aryan population; followed by oesophageal varices and growth as second and third most common causes and were more prevalent in Newar and Mongolian people.

Onychomycosis: a clinico-epidemiological study.

Onychomycosis is a common nail disorder. Far more than being a simple cosmetic problem, infected nail serves as a chronic reservoir, which can give rise to repeated mycotic infections. The study was undertaken to determine the various clinical patterns of onychomycosis. This prospective cross sectional study was conducted in clinically suspected patients of onychomycosis attending out patients department of dermatology, T.U. Teaching hospital between August 2006 and July 2007. Various data were obtained and clinical patterns were noted. Out of 182 clinically suspected patients of onychomycosis, 52.7% were males with male: female ratio of 1.1:1. Onychomycosis was predominant among the younger patients with slight male preponderance. Fingernails were more frequently involved in females whereas toenails in males. The most common clinical type was distal and lateral subungual onychomycosis. 58.2% had other concomitant fungal infections apart from onychomycosis. Onychomycosis could serve as a good reservoir for recurrent cutaneous superficial fungal infections. Hence, adequate treatment of onychomycosis can prevent from these recurrent cutaneous superficial fungal infections.

Study of nosocomial isolates of Staphylococcus aureus with special reference to methicillin resistant S. aureus in a tertiary care hospital in Nepal.

To find out the prevalence of Staphylococcus aureus nosocomial infection and methicillin resistant S. aureus (MRSA), clinical samples from nosocomially infected patients were processed by following standard methodology in microbiology laboratory, Tribhuvan University Teaching Hospital, Kathmandu, Nepal. Of 149 S. aureus isolates, skin infection isolates contributed a major part 72.5% making nosocomial infection by S. aureus most prevalent in skin infection followed by lower respiratory tract infection 11.41% and urinary tract infection 8.7%. Overall MRSA prevalence was 45.0%. MRSA prevalence was 42.6% in skin infection, 82.3% in lower respiratory tract infection and 30.8% in urinary tract infection. MRSA infection was found associated with lower respiratory tract infection only. Highest occurrence of nosocomial infection was observed in female surgical ward, surgical out patient department, orthopedic ward, male surgical ward and maternity ward. MRSA isolation was high from lower respiratory tract of patients admitted in intensive care unit, coronary care unit, Sub-acute intensive care unit, intermediate coronary care unit, neurology ward and post-operative ward. Whereas methicillin sensitive S. aureus (MSSA) occurrence was higher in patients admitted in orthopedic, Surgical out patient department, and female surgical ward. The occurrence of MRSA did not differ with age but MRSA was found associated with male patients and MSSA was associated with female patients. Since MRSA prevalence was high, regular surveillance of MRSA and nosocomial infections should be done and universal precautions to control nosocomial infections should be followed.