Predicting factors of patient satisfaction after varicose vein surgery at a university hospital in Nepal

INTRODUCTION

Varicose veins are a common vascular problem with a high prevalence, yet they are often neglected. The main objective of this study was to explore the patient satisfaction after varicose vein surgery, along with its predicting factors. To our knowledge, no similar study has been conducted in Nepal to date.

METHODOLOGY

This retrospective cross-sectional study included patients who underwent varicose vein surgery at Dhulikhel Hospital from September 2019 to February 2020. The satisfaction level after the surgery was assessed using a 10-point Likert scale questionnaire during a telephone interview with their verbal consent. Descriptive statistics and linear regression were performed to identify the predicting factors of patient satisfaction.

RESULTS

Among a total of 84 patients interviewed, 53.6% were male. The mean age of the participants was 43.13 ± 13.62 years. The mean patient satisfaction score was 42 ± 5.5, with nursing service, discharge teaching and hospital service being the highest scoring items in terms of patient satisfaction. Linear regression revealed age ≤40 years as a predictor of higher patient satisfaction (β=0.258, p=0.015) while early stage of varicose veins (β=-0.233, p=0.026) and duration of post-operative follow-up (β=-0.25, p=0.021) were negative predictors of patient satisfaction. This means that patients with C2-C3 venous disease and longer duration of postoperative follow-up tended to have lower satisfaction scores.

CONCLUSION

The overall patient satisfaction following varicose vein surgery was very good, and the major predictors of better satisfaction were age ≤40 years, C4-C6 clinical classification of venous disease and the shorter duration of follow-up after surgery.

Prevalence of gastrointestinal helminth parasites in rhesus macaques and local residents in the central mid-hills of Nepal

Rhesus macaques (Macaca mulatta) are distributed across Nepal in close association with humans and with a high probability of sharing of soil-transmitted intestinal helminth parasites. This study was carried out to determine the prevalence, richness and risk factors of gastrointestinal (GI) helminth parasites among rhesus macaques and humans in the Daunne Forest area, a community managed forest in the central mid-hills of Nepal. A total of 190 fecal samples, including 120 samples from rhesus macaques residing around the Daunne Devi Temple and in the surrounding forest, and 70 from local people, were microscopically examined by direct wet mount, floatation and sedimentation methods. Seasonal and age-sex based variations in helminth parasite prevalence were analyzed. Among the rhesus macaques, the total parasite prevalence was 39.2 %. Strongyloides sp. accounted for the highest prevalence (19.17 %) followed by Ascaris sp. (13.33 %), hookworm (10.83 %) and Trichuris sp. (4.17 %). Among the humans, Ascaris lumbricoides (11.3 %) was the only parasite detected. The Sorenson's coefficient of similarity of GI parasites between the macaques and local people at the generic level was 0.4. Mean parasite richness for the macaques was 1.21 ± 0.41 (SD) per infected sample. Parasite prevalence in the summer season (41.4 %) was higher than in the winter season (36 %). Adult macaques (41.67 %) had higher GI parasite prevalence than the young (30.77 %) and infants (27.27 %). Among the adult macaques, the prevalence rate was significantly higher (P=0.005) in females (52.46 %) than in males (22.86 %). Our results indicate that the temple rhesus macaques have a high prevalence of GI helminth parasites and could pose a potential zoonotic risk. As such, the need for routine monitoring and an effective management strategy is essential.

Reactions of nitrite with goethite and surface Fe(II)-goethite complexes

Chemodenitrification-the abiotic (chemical) reduction of nitrite (NO₂^-) by iron (II)-plays an important role in nitrogen cycling due in part to this process serving as a source of nitrous oxide (N₂O). Questions remain about the fate of NO₂^- in the presence of mineral surfaces formed during chemodenitrification, such as iron(III) (hydr) oxides, particularly relative to dissolved iron(II). In this study, stirred-batch kinetic experiments were conducted under anoxic conditions (to mimic iron(III)-reducing conditions) from pH 5.5-8 to investigate NO₂^- reactivity with goethite (FeOOH_(s)) and Fe(II)-treated goethite using wet chemical and attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy. Nitrite removal from solution by goethite was more rapid at pH 5.5 than at pH 7 and 8. Spectral changes upon nitrite adsorption imply an inner-sphere surface interaction (monodentate and bidentate) at pH 5.5 based on ATR-FTIR spectra of the nitrite-goethite interface over time. In iron(II)-amended experiments at pH 5.5 with high aqueous Fe(II) in equilibrium with goethite, nitrous oxide was generated, indicating that nitrite removal involved a combination of sorption and reduction processes. The presence of a surface complex resembling protonated nitrite (HONO) with an IR peak near ~1258 cm^-1 was observed in goethite-only and iron(II)-goethite experiments, with a greater abundance of this species observed in the latter treatment. These results might help explain gaseous losses of nitrogen where nitrite and iron(II)/goethite coexist, with implications for nutrient cycling and release of atmospheric air pollutants.

Case report of eventration of diaphragm due to an unknown febrile illness causing phrenic nerve palsy and other multiple nerve palsies

INTRODUCTION

Diaphragmatic eventration can be congenital or acquired. Diagnosis is delayed due to no symptoms or very mild ones and is generally done by imaging modalities. This condition is managed by plication of the affected part of diaphragm by various surgical approaches.

PRESENTATION OF CASE

A forty seven years lady presented with one year long history of abdominal pain, bloating and fullness after meals who was being treated in line of peptic acid disorder. She had developed bilateral foot drop after typhoid fever at seventeen years of age. Clinical examination and imaging with chest x-ray, chest ultrasound and computed tomography scan suggested eventration of left hemidiaphragm. Plication of eventration of left hemidiaphragm was done via mini thoracotomy of the left thorax. There were no postoperative complications and she was discharged on the sixth postoperative day.

DISCUSSION

Acquired eventration of diaphragm is commonly due to traumatic phrenic nerve palsy but rarely can be associated with a history of infection causing nerve palsies. Thoracic ultrasound is an emerging modality for diagnosis supporting X-rays and CT Scans. Plication of eventration with minimally invasive techniques has less number of hospital stay and less pain compared to open approaches.

CONCLUSION

Non-traumatic diaphragmatic eventration due to acquired phrenic nerve palsy following an unknown febrile illness is a rare case to be reported in Nepal. The aim of treatment is expansion of intra-thoracic space which is done by plication of the diaphragm.

Recovery Pattern in Different Surgical Approaches on Thoracic Enhanced Recovery based Fourteen-Step Protocol in Patients Undergoing Cardio-thoracic Surgery at University Hospital of Nepal

Background Cardio-thoracic surgery involves open and minimally invasive techniques. Enhanced recovery after surgery is used for early recovery from surgery. Enhanced recovery after surgery decreases hospital stay duration. Patients undergoing Enhanced recovery after surgery after video assisted thoracic surgery use less pain killers and have less hospital cost. There has not been any study on outcomes on patient who follow physiotherapy protocol designed in our setting. Objective To find the physiotherapy outcomes in patients undergoing thoracic enhanced recovery after surgery (T-ERAS) based 14 step protocol locally designed at Dhulikhel Hospital, Kathmandu University Hospital (DH, KUH). Method This is a retrospective cross sectional observational study. All the cases who underwent cardiothoracic surgery were classified based on the approach of chest surgery performed into groups Sternotomy, Thoracotomy and Video Assisted Thoracic Surgery (VATS) groups. Patients were advised for Thoracic Enhanced recovery after surgery based on the protocol that has been devised at Dhulikhel Hospital. The recovery of patients based on activities they could perform was noted and analyzed. Result Both ICU stay and hospital stay in number of days were highest in thoracotomy (6.04 days) group while that was lowest in video assisted thoracic surgery group (1.67 days). There is a similar recovery until step 5, i.e. 2 days and rapid progression in further steps in video assisted thoracic surgery group while it is much slower in both sternotomy and thoracotomy groups. Conclusion Postoperative mobilization and physiotherapy enhance early healing and decrease hospital stay. Mean hospital stay and ICU stay were shorter for video assisted thoracic surgery cases compared to Thoracotomy and Sternotomy groups and the mean days to achieve different steps varied within the protocol between groups compared.

Rich yet undocumented ethnozoological practices of socio-culturally diverse indigenous communities of Sikkim Himalaya, India

AIM OF THE STUDY

The indigenous people of Sikkim Himalaya possess indispensable traditional knowledge including the use of flora and fauna due to their close association with nature. The present study aims to explore the rich and undocumented ethnozoological practices of different indigenous communities of the Sikkim Himalaya.

MATERIALS AND METHODS

Data was collected using semi-structured questionnaire interviews among the traditional healers and indigenous communities of Sikkim. A total of 91 respondents covering all four districts of Sikkim were interviewed from September 2017-April 2018.

RESULTS

This study recorded a total of 59 species belonging to nine taxonomic groups used for traditional ethnozoological practices by the indigenous communities of Sikkim. Mammals represented 58% of the total animals followed by birds (22%). Among the total, 71% of animal species were used for zootherapy whereas 29% were used for religious customs or shamanistic practices. Almost 64% species were used for treatment of more than one disease and the chief mode of preparation was by boiling the body parts. Among different parts used in traditional medicine, meat was most preferred while horns and hairs were mostly used for religious purposes.

CONCLUSION

Present findings suggest that traditional medicine including zootherapy still serves as a source of primary healthcare in rural areas of Sikkim and provides an identity to the culture of a region. We recommend documentation of more such traditional medicinal systems along with scientific validation of traditional practices with modern tools. Biodiversity Management Committees (BMCs), the legally formed bodies at local level, may be entrusted in documentation of such practices which might contribute significantly in the conservation of traditional practices and also preserves the associated traditional knowledge as per the provision of Biological Diversity Act of India.

A case of thymoma in myasthenia gravis: Successful outcome after thymectomy

INTRODUCTION

Thymic abnormalities occur as hyperplasia and thymoma. Myasthenia gravis is commonly present in thymoma. Thymectomy possesses risk due to anatomical proximity with vital thoracic structures and myasthenia crisis.

PRESENTATION OF CASE

Forty five years female with complaints of difficulty swallowing and weakness of upper limb muscles upon investigation showed mass in mediastinum and antibody test for myasthenia gravis positive. Medical management was done for a month followed by thymectomy. There were no intra and postoperative complications. Medical management was stopped one month after surgery and she is symptom free.

DISCUSSION

Thymectomy is the standard of care where median sternotomy is the mainstay approach to surgery. Various other surgical approaches and complications revolving around surgery has been discussed.

CONCLUSION

Surgical removal of thymoma cured myasthenia gravis in our case. We focused on proper preoperative optimization of myasthenia gravis symptoms before thymectomy.

Health Care Waste Management Practice in Health Care Institutions of Nepal

BACKGROUND

Medical waste is considered as a major public health hazard. In a developing country like Nepal, there is much concern about the management practice of medical waste. This study aimed to assess Health Care Waste Management practice among Health Care Institutions in Nepal.

METHODS

A cross sectional study was carried out between July 2012 to June 2013 in 62 different Health Care Institutions, selected from stratified proportionate random sampling technique from all administrative regions of Nepal. A structured questionnaire and observation checklist were used for data collection.

RESULTS

The waste generation rate is found significantly correlated with bed capacity, patient flow rate and annual budget spent in the hospital. It is found significantly higher in Teaching hospital than other Health Care Institutions of Nepal. An average of 3.3 kg/day/patient of medical waste (2.0 kg/day/patient non-hazardous and 1.0 kg/day/patient hazardous waste) was generated during the study period. Further, it was found that most of the Health care wastes were not disinfected before transportation to waste disposal sites. Very limited number of Health Care Institutions had conducted Environmental Assessment. Similarly, some of the Health Care Institutions had not followed Health care waste management guideline 2009 of Nepal Government.

CONCLUSIONS

We found poor compliance of medical waste management practice as per existing legislation of Government of Nepal. Hence, additional effort is needed for improvement of Health care waste management practice at Health Care Institutions of Nepal.

Menopausal Health Status of Women of Kapilvastu District of Nepal

BACKGROUND

Women face numerous health problems in their post-reproductive and menopausal years, including issues such as pelvic pain, incontinence and obstetric fistula. In Nepal, the importance of these health issues is increasing with the aging of the population, yet women are often unable to access adequate health care due to entrenched gender structures and misconceptions regarding menopause. This study aimed to describe the prevalence of menopause, the associated health problems and their severity amongst women aged 40-60 years in Kapilvastu.

METHODS

A descriptive study was conducted in Kapilvastu district. Multi stage cluster sampling technique was adopted: Illakas of Kapilvastu were identified, then one Village Development Committee (VDC) from each Illaka of the district, and two wards from each of these VDCs, were selected randomly.

RESULTS

The median age of onset of menopause was 47 years (25 th and 75 percentiles = 43 and 50 years), and >90% of women had entered menopause by 54. All symptoms in the Menopause Rating Scale were experienced to some extent by at least 30% of women, even amongst the premenopausal group. The most common problems experienced by menopausal women were: sexual problems (81.7%, 95%CI: 78.0-85.4), physical and mental exhaustion (81.5%, 95%CI: 77.8-85.2) and joint and muscular discomfort (78.5%, 95%CI: 74.6-82.4). The symptoms most frequently deemed "severe" or "very severe" were: sexual problems (40.5%), joint and muscular discomfort (27.4%), and sleep problems (21.0%). th

CONCLUSIONS

Middle-aged women in Kapilvastu experienced menopausal symptoms to a substantial degree. The prevalence and severity of these symptoms increased with the menopausal transition, and with increasing age. Menopause itself did not appear to be the primary risk factor for typical "menopausal" symptoms.

The correlation between fine needle aspiration cytology and histopathology of head and neck lesions in Kathmandu University Hospital

BACKGROUND

Fine needle aspiration cytology (FNAC) with it's minimally invasiveness has been a well accepted procedure in the initial diagnosis of various swellings. With time and experience high sensitivity and specificity of FNAC over conventional open biopsy has lead to the wide acceptance of this procedure.

OBJECTIVE

To evaluate the utility of aspiration cytology as a first-line diagnostic tool in palpable head and neck masses and correlate with histologic results for evaluating diagnostic accuracy.

METHODS

A hospital based prospective, comparative study was conducted among patients with various swellings at Head and Neck regions in the Department of Pathology, Dhulikhel Hospital between July 2011 to June 2012. FNAC were done from the palpable masses of head and neck regions and were compared with biopsy findings of the same lesions. Data entry and analysis performed using SPSS version 16. The sensitivity, specificity and accuracy rates were calculated.

RESULTS

A total 64 patients were subjected to both FNAC and histopathological examination (HPE). Total 39 (61 %) were females and 25 (39 %) were males with M: F ratio of 1:1.6. The age group ranged from 9 to 80 years. Twenty five percent of patients were in the age group below 20 years. The highest number of cases included lymph nodes 29 (45%) followed by thyroid 24(37.5 %), salivary glands 10(16%) and 1 case (1.6%) was a soft tissue swelling over the occipital region. Highest sensitivity, specificity and accuracy rate for diagnosis by FNAC were observed in thyroid. The overall sensitivity and specificity of FNAC were 86% and 97% respectively in determining the various pathologies. The overall accuracy of FNAC in present study was 87.4%.

CONCLUSION

FNAC is a minimally invasive first line investigation with a high sensitivity and specificity for the diagnosis of various head and neck lesions.

Socio-demographic Predictors of Tobacco Use among Women of Nepal: Evidence from Non Communicable Disease Risk Factors STEPS Survey Nepal 2013

BACKGROUND

Globally, tobacco use is most common public health problem. Similar is the situation of Nepal where thousands of lives are lost annually. Both sexes are affected by tobacco use but women share different and unique problems. Hence, in this paper we made an attempt to understand socio-demographic predictors of tobacco use among women of Nepal.

METHODS

A cross-sectional study was carried out with a sample of 2797 women (15-69 years) recruited through multistage cluster sampling technique. This study used sub-set of data of non-Communicable diseases risk factors survey 2013 of Nepal. Bivariate and multivariable regression analyses were carried out to determine predictors of tobacco use among women of Nepal.

RESULTS

Among total women, 14% were having at least one form and pattern of tobacco use. Furthermore, 10 % were smoker and 4 percent were using any form of chewing tobacco user. As compared to 15-29 years women, 45-69 years age group were 5 times (OR=4.7, 95% CI =2.7-8.0) more likely to be tobacco user. Similarly, urban women were 40% (OR=0.6, 95% CI=0.38-0.95) less vulnerable than rural women. In addition, higher educated women were found to be at 1% (OR=0.01, 95% CI=0.01-0.01) less risk of being tobacco user.

CONCLUSIONS

Age, area of residence, and education level were found to be significant socio-demographic predictors for tobacco use among women in Nepal. Therefore, tobacco control programme should target these groups for interventions.

Alcohol Use by Nepalese Women: Evidence from Non Communicable Disease Risk Factors STEPS Survey Nepal 2013

BACKGROUND

Over the centuries, the world has witnessed alcohol use as a common phenomenon among the male population. Owing to the vulnerability of women towards alcohol and its possible consequences on women as well as children when pregnant or lactating mothers drink alcohol, there is utmost need to know the alcohol use among this population. The study sought to assess alcohol use among the Nepalese women aged 15-69 years.

METHODS

It was a sub-set analysis of 2807 women aged 15-69 years, extracted from a data of national cross-sectional study, NCD Risk Factors: STEPS Survey Nepal 2013 carried out among 4200 adults in 2013 using a multistage cluster sampling. Data collected in personal digital assistants using WHO NCD STEPS instrument version 2.2 were transferred to Microsoft Excel, cleaned in SPSS 16.0, and analyzed in STATA 13.0.

RESULTS

We reported 11.7% (95% CI: 9.5-14.3) ever users of alcohol, 9.4% (95% CI: 7.4-11.7) last 12 months alcohol users, 7.1% (95% CI: 5.2-9.0) current drinkers, and 0.9% (95% CI: 0.5-1.6) with harmful use of alcohol. As compared to 15-29 years women, 30-44 and 45-69 years women were 1.61 (95% CI: 1.02-2.55) and 1.58 (95% CI: 1.03-2.43) times more likely to be drinkers in the last 12 months, respectively. Likewise, 45-69 years women were 2.84 (95% CI: 1.05-7.63) times more likely to indulge into harmful use of alcohol than their younger counterparts (15-29 years). Women from the Terai belt had lower odds of any drinking pattern than the women from hills: ever use (0.43, 95% CI: 0.27-0.70), alcohol use in the last 12 months (0.44, 95% CI: 0.26-0.75), current drinking (0.38, 95% CI: 0.22-0.65), and harmful use of alcohol (0.11, 95% CI: 0.03-0.37). Primary education holders were found to have 0.64 times (95% CI: 0.43-0.95) chances of current drinking than those without formal education.

CONCLUSIONS

Women from upper age groups, hills, and with no formal education were found likely to be consuming alcohol. Contextual and culture friendly anti alcohol behaviour change communication interventions on community settings of hills and mountains, promoting active participation of relatively older women (45-69 years) and illiterate women are of great importance.

Oral Health Condition of School Children in Nawalparasi District, Nepal

BACKGROUND

Oral diseases and feeding habits are inextricably linked. Significance of assessing oral health conditions among the school children therefore exists. The current study investigated the oral health condition among 5-6 years and 12-13 years children in Nawalparasi district, Nepal.

METHODS

Recruiting 1,000 school children aged (5-6) and (12-13) years in Nawalparasi district, a cross-sectional study was carried out from November to December, 2014. Data assembled from standard instrument was entered in Epi-Data 3.1, cleaned in SPSS version 16.0, and analyzed in Epi Info 3.5.4.

RESULTS

Of 12-13 years children, three out of ten (32.0%, 95% CI: 27.8-36.4) suffered from occasional dental discomfort and pain, and 8.1% (95% CI: 5.9-11.0) often experienced dental discomfort and pain during the last 12 months. It was 73.6% (95% CI: 69.3-77.4) who brushed teeth at least once a day, while another 20.7% (95% CI: 17.2-24.7) brushed twice a day. Among all children, 86.1% (95% CI: 82.6-89.1) used toothpaste to brush the teeth. A three-fourth (73.8%, 95% CI: 69.5-77.7) drank tea with sugar daily. Dental caries was visible on 42.2% (95% CI: 37.7-46.8) (mean DMFT score 2.3 ± 1.5). Likewise, a quarter (24.1%, 95% CI: 20.3-28.3) had gingival bleeding, 10.9% (95% CI: 8.3-14.1) questionable enamel fluorosis, 4.5% (95% CI: 2.9-6.9) dental trauma, and 1.7% (95% CI: 0.8-3.5) oral mucosal lesion. Referral for preventive/routine treatment was observed in 40.5% (95% CI: 36.145.1). Among 5-6 years old children, a remarkable proportion of dental caries (64.4%, 95% CI: 59.2-69.4 and mean DMFT score 4.4 ± 3.0) was noted. Statistics of enamel fluorosis, dental trauma, and oral mucosal lesions in this age group were: 3.1% (95% CI: 1.6-5.6), 1.7% (95% CI: 0.7-3.8), and 1.1% (95% CI: 0.4-3.0) respectively. About 40.1% (95% CI: 35.0-45.4) were referred for preventive treatment, and the rest for prompt treatment.

CONCLUSIONS

Oral health of the children was poor, chiefly dental carries remained widespread. Dental hygiene awareness should be promoted in schools in active coordination and collaboration with education authorities.

Prevalence and Determinants of Comorbid Diabetes and Hypertension in Nepal: Evidence from Non Communicable Disease Risk Factors STEPS Survey Nepal 2013

BACKGROUND

Despite being preventable disease, diabetes and hypertension fall among top 10 leading causes of death globally. Diabetes and hypertension are independent risk factor for cardiovascular disease, and the risk is markedly increased by their co-occurrence.This study attempted to find out the prevalence of comorbid diabetes and hypertension in Nepal.

METHODS

A cross-sectional survey was conducted among 4,200 Nepalese adults selected through multistage cluster sampling.Out of 4,200 respondents of larger study, this article includes the analysis of 3,772respondents who granted permission for physical and biochemical measurement. Nepali version of WHO NCD STEPS instrument version 2.2 was used for data collection. In order to obtain national estimates sample weight was used. Chi-square test and multivariable binary logistic regression were used to assess the association of socio-economic predictors with comorbid conditions after adjusting effect of clusters and strata.

RESULTS

The overall prevalence of comorbid diabetes and hypertension was found to be 2% in Nepal.Considering age group 15 to 29 years as reference, people in age group 45-69 and 30 to 44 years were found to have 33 folds (AOR=33.06, 95%CI=5.90-185.35) and 6 folds(AOR=6.36, 95%CI=1.08-37.43) higher odds of developing comorbid condition of diabetes and hypertension.

CONCLUSIONS

Prevalence of comorbid diabetes and hypertension seem to be high in people of 45-69 years of age. Age and level of education seem to be associated with comorbid diabetes and hypertension.

Histomorphological profile of colonoscopic biopsies and pattern of colorectal carcinoma in Kavre district

BACKGROUND

Colonoscopy is the method to visualize the mucosa of the entire colon and terminal ileum to detect the intestinal abnormalities and obtain biopsy for definitive diagnosis. For clinical decisions in the diagnosis of various colonic lesions unambiguous interpretation of colorectal biopsies is necessary.

OBJECTIVES

To assess the prevalence pattern of colonic diseases and to correlate the incidence of colorectal carcinoma with age, sex, site and symptoms presented at Dhulikhel Hospital.

METHODS

The materials consisted of 126 biopsies which were submitted to the Department of Pathology, Kathmandu University School of Medical Sciences, Dhulikhel, during the period of July 2011-July 2012. Data collected and entered in MS-Excel and were analyzed using SPSS-16.

RESULTS

Out of 126 colonoscopic biopsies 34(27%) showed chronic nonspecific inflammation, followed by carcinoma 25(19.8%), non-neoplastic polyps 21(16.7%), granulomatous inflammation 14(11.1%), neoplastic polyps 8(6.3%), ulcerative colitis 4(3.2%). Miscellaneous lesions; acute focal colitis, eosinophilic colitis were also observed in 19 (15.1%). A higher frequency of colonic diseases in males with a male to female ratio of 1.4:1 and age range of two years to 84 years was observed. Out of 25 patients diagnosed with colorectal carcinoma,48% (n=12) were males and 52% (n=13) were females with a mean age of 55.17 years in men and 59.46 years in females. Male and female ratio among cancer groups was 1:1.08. Total 36% (n=9) were diagnosed with cancer before the age of 50. Out of these nine cases, 6( 66.7%) were males and 3(33.3%) were females. The male and female ratio in younger and older age groups were 2:1 and 1:1.7 . 17( 68%) of the lesions were left sided and 8(32%) were right sided. Below age 50 , left to Right sided lesions in males were 2:1 and in females 1:2. However, above 50 years the ratio among proximal and distal lesions were 5:1 in males and 2.3:1 in females. A statistically significant association was seen between the growth (p=0.000) and per rectal bleeding (p= 0.006) with carcinoma.

CONCLUSION

The most prevalent lesion in colorectal biopsies was non-specific colitis followed by carcinoma colon. The incidence of colorectal carcinoma is on rise in Nepalese society. Although colorectal carcinoma is more common in older age group the incidence are also increasing among young especially among women.

Nitrite reactivity with magnetite

Under Fe(3+)-reducing conditions, soil Fe(2+) oxidation has been shown to be coupled with nitrate (NO3(-)) reduction. One possible secondary reaction is the involvement of NO3(-) and nitrite (NO2(-)) with magnetite, a mixed valence Fe(2+)/Fe(3+) mineral found in many natural environments. Currently, little information exists on NO3(-) and NO2(-) reactivity with magnetite. This study investigates NO3(-) and NO2(-) reactivity with magnetite under anoxic conditions using batch kinetic experiments across a range of pH values (5.5-7.5) and in the presence of added dissolved Fe(2+). Solid phase products were characterized using X-ray diffraction (XRD), Mössbauer spectroscopy, and scanning electron microscopy (SEM). Nitrate removal by magnetite was much slower when compared with NO2(-). There was a pH-dependence in the reduction of NO2(-) by magnetite; the initial rate of NO2(-) removal was two times faster at pH 5.5 than at pH 7.5. The influence of pH was explained by the binding of NO2(-) to positively charged sites on magnetite (≡ S-OH2(+)) and to neutral sites (≡ S-OH(0)). As NO2(-) was removed from solution, nitric oxide (NO) and nitrous oxide (N2O) were identified as products confirming that nitrite was reduced. Structural Fe(2+) in magnetite was determined to be the reductant of NO2(-) based on the lack of measurable dissolved Fe(2+) release to solution coupled with Mössbauer spectra and XRD analysis of solid phase products. Addition of dissolved Fe(2+) to magnetite slurries resulted in adsorption and an acceleration in the rate of nitrite reduction at a given pH value. In summary, findings reported in this study demonstrate that if magnetite is present in Fe(3+)-reducing soil and NO2(-) is available, it can remove NO2(-) from solution and reduce a portion of it abiotically to NO and subsequently to N2O by a heterogeneous electron transfer process.

Understanding the burden of disease in Nepal: a call for local evidence

The burden of disease, most commonly expressed in terms of Disability-Adjusted Life Years, has become a crucial component in decision making processes within the health sector. In Nepal, however, burden of disease estimates are scarce and lack representativeness. To improve our understanding of the burden of disease in Nepal and thereby increase the efficiency of health policies, there is an urgent need to strengthen the local evidence base. All relevant stakeholders should therefore collaborate to generate new data, improve existing data generation mechanisms, make generated data available, and optimize the use of available data.

Environmental burden of diarrhoeal diseases due to unsafe water supply and poor sanitation coverage in Nepal

BACKGROUND

Unsafe water and poor sanitation are major contributing factors of diarrhoea. Most of the water supply systems in urban and rural area of Nepal do not have basic water treatment facilities. This has resulted in frequent reports of fecal contamination in drinking water and outbreaks of waterborne diseases. The purpose of this study was to find out the burden of diarrhoeal diseases at different scenario of water supply system and sanitation status in Nepalese context.

METHODS

A cross-sectional study was conducted in four different districts of Nepal analyzing six different scenarios based on availability of water supply and sanitation status. Village Development Committees (VDCs) and community selection was made purposively and 360 households, 60 from each scenario were selected conveniently to achieve the required number. Within the selected household, the head of the household or any member above 18 years of age was interviewed using a structured questionnaire. Observation was done for toilet and water sources besides questionnaire method.

RESULTS

Incidence of diarrhoea per 1000 population was found to be the highest in scenario-IV (Spring without toilet) with 204.89 followed by scenario-VI (Tube well without toilet) with 145.30, while it was less in scenario-I (Tap water with toilet) with 46.05. Accordingly, the burden of disease (YLD) was also found to be the highest in scenario-IV and the lowest in scenario-I. Most of the households didn't treat water before drinking. Hand washing practice was found to be more than 90% regardless of toilet availability.

CONCLUSIONS

The greater risk of acquiring diarrhoeal disease and higher burden of disease in situation of unprotected water source and absence of toilet shows that these are still important contributing factors for diarrhoeal disease in Nepal. Use of sanitary toilets and protected water source are the important measures for diarrhoeal disease prevention in Nepal.

Permanent Genetic Resources added to the Molecular Ecology Resources Database 1 February 2010-31 March 2010

This article documents the addition of 228 microsatellite marker loci to the Molecular Ecology Resources Database. Loci were developed for the following species: Anser cygnoides, Apodemus flavicollis, Athene noctua, Cercis canadensis, Glis glis, Gubernatrix cristata, Haliotis tuberculata, Helianthus maximiliani, Laricobius nigrinus, Laricobius rubidus, Neoheligmonella granjoni, Nephrops norvegicus, Oenanthe javanica, Paramuricea clavata, Pyrrhura orcesi and Samanea saman. These loci were cross-tested on the following species: Apodemus sylvaticus, Laricobius laticollis and Laricobius osakensis (a proposed new species currently being described).

Environmental burden of acute respiratory infection and pneumonia due to indoor smoke in Dhading

BACKGROUND

ARI and pneumonia is one of the major public health problems in Nepal which always ranks highest position among the top ten diseases. One of the risk factor of ARI and pneumonia is indoor smoke from kitchen where primary source of cooking is solid biomass fuel. This study was carried out in order to estimate the burden of ARI and pneumonia due to indoor smoke. ARI and pneumonia was chosen as it is one of the significant public health problem among under five children in Nepal and responsible for high number of premature deaths.

METHODS

A cross-sectional study was conducted in Dhading district. Multistage cluster sampling technique was used for data collection considering ward as a cluster. The environmental burden of ARI and pneumonia due to indoor smoke was calculated using the WHO Environmental Burden of Disease Series.

RESULTS

About 87 percent of households were using solid biomass fuel as a primary source of fuel. The under five children exposed to solid fuel use was 41313. The total 1284 Disability Adjusted Life Years were lost due to ARI and pneumonia and about 50 percent of it was attributed by Indoor smoke in household.

CONCLUSIONS

The solid biomass fuel was primary source of energy for cooking in Dhading district which is attributing about 50 percent of burden of ARI and pneumonia among under five children.