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2013| November-December | Volume 54 | Issue 6
Online since
February 6, 2014
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REVIEW ARTICLES
Aetio-pathogenesis of breast cancer
Imran Haruna Abdulkareem
November-December 2013, 54(6):371-375
DOI
:10.4103/0300-1652.126284
PMID
:24665149
This is a literature review on the aetiology and pathogenesis of breast cancer, which is the most common cancer worldwide, and the second leading cause of cancer death, especially in Western countries. Several aetiological factors have been implicated in its pathogenesis, and include age, genetics, family history, diet, alcohol, obesity, lifestyle, physical inactivity, as well as endocrine factors. These factors act separately or together in the causation of breast cancer. More recently, triple negative breast cancer has been described in certain categories of patients and is associated with poorer prognosis and earlier recurrence compared with the conventional breast cancer. Therefore, adequate knowledge of these factors is important in identifying high risk groups and individuals, which will help in screening, early detection and follow-up. This will help to decrease the morbidity and mortality from this life-threatening disease.
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ORIGINAL ARTICLES
Assessment of radiation protection practices among radiographers in Lagos, Nigeria
Cletus Uche Eze, Livinus Chibuzo Abonyi, Jerome Njoku, Nicholas Kayode Irurhe, Oluwabola Olowu
November-December 2013, 54(6):386-391
DOI
:10.4103/0300-1652.126290
PMID
:24665152
Background:
Use of ionising radiation in diagnostic radiography could lead to hazards such as somatic and genetic damages. Compliance to safe work and radiation protection practices could mitigate such risks. The aim of the study was to assess the knowledge and radiation protection practices among radiographers in Lagos, Nigeria.
Materials and Methods:
The study was a prospective cross sectional survey. Convenience sampling technique was used to select four x-ray diagnostic centres in four tertiary hospitals in Lagos metropolis. Data were analysed with Epi- info software, version 3.5.1.
Results:
Average score on assessment of knowledge was 73%. Most modern radiation protection instruments were lacking in all the centres studied. Application of shielding devices such as gonad shield for protection was neglected mostly in government hospitals. Most x-ray machines were quite old and evidence of quality assurance tests performed on such machines were lacking.
Conclusion:
Radiographers within Lagos metropolis showed an excellent knowledge of radiation protection within the study period. Adherence to radiation protection practices among radiographers in Lagos metropolis during the period studied was, however, poor. Radiographers in Lagos, Nigeria should embrace current trends in radiation protection and make more concerted efforts to apply their knowledge in protecting themselves and patients from harmful effects of ionising radiation.
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Trends of tuberculosis prevalence and treatment outcome in an under-resourced setting: The case of Enugu state, South East Nigeria
Cyril C Dim, Ngozi R Dim
November-December 2013, 54(6):392-397
DOI
:10.4103/0300-1652.126292
PMID
:24665153
Background:
The burden of tuberculosis (TB) in Nigeria is high. Unfortunately, the data from the TB programme of the States' ministries of health are usually unpublished, which possibly contribute to the prevailing ignorance and poor attitude of Nigerians to the disease. This study determined the trends of TB burden and treatment outcome in Enugu state, Nigeria; and relate the State's disease burden to that of the Nation.
Materials and Methods:
A descriptive study of secondary data from the TB control programme, Ministry of Health, Enugu state, the National annual report of 2008, and World Health Organisation (WHO) TB database for the 10-year period of 2000-2009.
Results:
The number of female TB cases was higher than males within the 0-14 age group only. The annual number of all TB cases showed a rising trend from 914 cases in the year 2000 to 1684 in 2009; but the proportion of new sputum smear (ss+) pulmonary tuberculosis (PTB) cases declined (Trend
X
[2]
= 7.37,
P
= 0.007). The average number of extra-pulmonary TB cases increased fourfold from 2000-2004 to 2005-2009 (36 versus 150 cases). The median treatment success rate was 82% (range: 78-85). For the period 2004-2008, 2.0% of all new ss + PBT cases reported in Nigeria, originated from Enugu state. The proportion of new ss + PTB reported in Enugu state was significantly higher than national value (59.6% versus 52.6%) [
P
< 0.001, OR = 1.33 (95% CI: 1.26, 1.40)].
Conclusion:
The burden of TB in Enugu state of Nigeria had increased over the period reviewed. However, the State's contribution to the disease burden in Nigeria was low.
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A review of neonatal tetanus in University of Maiduguri Teaching Hospital, North-eastern Nigeria
MA Alhaji, MA Bello, HA Elechi, RT Akuhwa, FL Bukar, HA Ibrahim
November-December 2013, 54(6):398-401
DOI
:10.4103/0300-1652.126294
PMID
:24665154
Background:
Neonatal tetanus is a vaccine preventable disease and is a leading cause of neonatal mortality in developing countries. The effectiveness of immunization and hygienic umbilical cord care practices in the prevention of the disease has been established.
Objective:
The objective of this study was to audit the scourge of neonatal tetanus in a tertiary health facility in a resource-limited setting.
Materials and Methods:
The study was a retrospective study. Case notes of neonates admitted with clinical diagnosis of tetanus into the Special Care Baby Unit (SCBU) between January 2009 and December 2010 were retrieved and evaluated to identify socio-demographic and clinical characteristics, mode of acquisition and severity of the disease, presence of co-morbidities, duration of hospital stay and outcome.
Results:
Most of the mothers had no tetanus immunization (66.7%) and the main social class of the children was class V (45.1%) and IV (41.2%), respectively. Only 29.4% of the mothers attended ante-natal care (ANC) while majority of the patients were delivered at home (94.1%). Half of the neonates presented with the severe form of the disease (51.0%). Sepsis is a prominent co-morbidity (59.2%). Morality was high with case fatality of 66.7%.
Conclusion:
This high prevalence of neonatal tetanus with high mortality is not only disappointing but unacceptable in the 21
st
century. Therefore, all efforts must be re-focused on current preventive strategies while pursuing new areas such as slow-release mono-dose tetanus vaccine and school health programme as well as advocacy on political will for the sustainability of immunization programmes of women of child-bearing age.
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Risk factors and perinatal outcome of uterine rupture in a low-resource setting
Anthony Osita Igwegbe, George Uchenna Eleje, Onyebuchi Izuchukwu Udegbunam
November-December 2013, 54(6):415-419
DOI
:10.4103/0300-1652.126300
PMID
:24665158
Background:
Uterine rupture has continued to be a catastrophic feature of obstetric practice especially in the low-resource settings. This study determined the incidence, predisposing factors, treatment options and feto-maternal outcome of ruptured uterus.
Materials and Methods:
A 10-year retrolective study of all cases of uterine ruptures that were managed in Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria between 1st January, 2001 and 31st December, 2010 was undertaken. The proforma was initially used for data collection, which was transferred to a data sheet before entering them into the Epi-info software. Analysis was done using Epi info 2008 (version 3.5.1).
Results:
Out of 5,585 deliveries over the study period, 47 had uterine rupture, giving an incidence of 0.84% or 1 in 119 deliveries. All the patients were multiparous and majority (63.8%) was unbooked. Traumatic (iatrogenic) rupture predominated (72.1%). Uterine repair with (55.8%) or without (34.9%) bilateral tubal ligation was the commonest surgery performed. Case fatality rate was 16.3%, while the perinatal mortality rate was 88.4%. Average duration of hospitalization following uterine rupture was 10.3 days.
Conclusion:
Uterine rupture constituted a major obstetric emergency in the study hospital and its environs. The incidence, maternal and perinatal mortalities were high. The traumatic/iatrogenic ruptures constituted the majority of cases, hence, majority of the cases are preventable. There is therefore a dire need for education of our women on health-related issues, utilization of available health facilities, adequate supervision of labour and provision of facilities for emergency obstetric care.
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REVIEW ARTICLES
Knowledge, awareness and practice regarding needle stick injuries in dental profession in India: A systematic review
Vinod Kapoor, Ramandeep Singh Gambhir, Simarpreet Singh, Sanjeet Gill, Agiapal Singh
November-December 2013, 54(6):365-370
DOI
:10.4103/0300-1652.126283
PMID
:24665148
Background:
Hundreds of thousands of healthcare workers remain susceptible to deadly viruses throughout the year, including blood-borne pathogens. Needle stick injuries (NSI) constitute one of the most common occupational health hazards in healthcare profession. Dental professionals are at more risk of acquiring NSI due to their limited and restricted working area. The present systematic review was carried out to determine knowledge, awareness and practice regarding NSI in dental professionals and students in India.
Materials and Methods:
A systematic review of cross-sectional studies available in the literature on the knowledge, attitude and practice among dental professionals and students in India was carried out. We identified relevant articles through electronic and manual search such as Pubmed and MEDLINE. Two investigators independently identified studies that were included in the review.
Results:
Four articles were finally selected for inclusion in the review. All the studies were done involving dental students; 89.23% of the students had correct knowledge about NSI and 91.55% of the students had adequate level of awareness regarding its management in one of the studies. Also, 89% of students in one of the studies were aware of taking post-exposure prophylaxis after accidental NSI. In another study, 44% of the students destroyed the needles using a needle destroyer and 15% destroyed them in puncture-resistant containers.
Conclusion:
The knowledge and awareness of the dental students is adequate, although there is considerable variation in practice and management of NSI among different studies. There is a need for more studies involving dental professionals.
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ORIGINAL ARTICLES
Cardiac autonomic dysfunction in sickle cell anaemia and its correlation with QT parameters
Philip Manma Kolo, Emmanuel Olatunde Sanya, Timothy O Olanrewaju, Ademola E Fawibe, Ayodele Soladoye
November-December 2013, 54(6):382-385
DOI
:10.4103/0300-1652.126288
PMID
:24665151
Background
: Abnormalities of QT parameters together with cardiac autonomic neuropathy (CAN) confer significant risks of cardiac morbidity and mortality in patients with diabetes mellitus. We questioned whether or not CAN influences occurrence of QT interval prolongation and dispersion in patients with sickle cell anaemia (SCA).
Materials and Methods
: Forty stable adult sickle cell patients with 44 healthy haemoglobin AA controls were studied. Baseline electrocardiograms were obtained and cardiovascular autonomic function tests were performed using standard protocols.
Results
: Mean corrected QT (QTc) in sickle cell patients was significantly higher (
P
= 0.001) than the mean of controls. Similarly, mean QT dispersion (QTcd) was higher (
P
= 0.001) in the former than in the latter. Mean QTc in patients with CAN was longer than patients with normal autonomic function (461 ± 26 ms versus 411 ± 23 ms),
P
= 0.001 (OR of 17.1, CI 3.48-83.71). Similarly, QTcd was higher (
P
= 0.001) in patients with CAN than those with normal cardiac autonomic function. Positive correlations were found between CAN with QTc and QTcd (r = 0.604,
P
= 0.001, r = 0.523,
P
= 0.001, respectively).
Conclusion
: CAN is a risk factor for abnormalities of QT parameters in SCA and both may be harbinger for cardiac death.
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Retarded hippocampal development following prenatal exposure to ethanolic leaves extract of
Datura metel
in wistar rats
Azeez Olakunle Ishola, Philip Adeyemi Adeniyi
November-December 2013, 54(6):411-414
DOI
:10.4103/0300-1652.126299
PMID
:24665157
Background:
Datura metel
contains atropine alkaloids and has been used to treat complication like asthma and, bronchitis, because of its anticholinergic properties.
Aim:
This study aimed to determine the prenatal effects of ethanolic extract of
D. metel
leaves exposure on the development of hippocampus.
Materials and Methods:
Twenty rats (12 females and 8 males) were purchased. The females were grouped into four groups (A_D). Group A were given 500 mg/kg body weight of the extract on the first day of fertilization to the end of gestation period, Group B were given 500 mg/kg body weight on the 8
th
day of fertilization to the end of gestation period, Group C were given 500 mg/kg body weight on 15
th
day of fertilization to the end of gestation period and Group D were given normal saline throughout the gestation period.
Results:
Rats in Group A showed no implantation, rats in Group B had abortion on the 7
th
day after administration, and rats in Group C gave birth with their litters showing retarded hippocampus development and neural degeneration and rats in Group D (control) showed normal development.
Conclusion:
Ethanolic extract of
D. metel
leaf is teratogenic in the late stage of pregnancy, is abortificient and can serve as a contraceptive.
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Serum alpha-fetoprotein level is higher in hepatitis C than hepatitis B infected chronic liver disease patients
Mathias Abiodun Emokpae, Babatunde Gabriel Adejumol, Aliyu Abdu, Nasiru Magaji Sadiq
November-December 2013, 54(6):426-429
DOI
:10.4103/0300-1652.126302
PMID
:24665160
Background:
The frequency of raised serum alpha-fetoprotein may vary in relation to hepatitis B or C infection in chronic liver disease (CLD). The study evaluated the frequency of hepatitis B and C in patients with chronic liver disease and correlated the levels of serum alpha-fetoprotein with hepatitis B and C infection in the patients.
Materials and Methods:
Eighty-six patients with CLD were recruited for the study. Fifty subjects, with no CLD were used as control. Hepatitis B surface Antigen (HBsAg) and hepatitis C antibody were determined using enzyme-linked immunosorbent assay (ELISA) technique (Human diagnostics, Germany and HCV Murex 40 Anhet laboratories, USA) while liver function tests were evaluated using express plus chemistry auto analyzer. Alpha-fetoprotein was assayed using ELECSYS 1010 auto analyser.
Results:
There were 60 males and 26 females, with a mean age of 46 + 6.5 years, while the controls were 25 males and 25 females with a mean age of 41 ± 2.5 years. Thirty-six subjects (41.7%) were seropositive for HBsAg while 24 (27.9%) were seropositive for Hepatitis C Virus (HCV) antibody. The mean alpha fetoprotein level was 359 ± 9.9 ng/mL while mean control value was 1.93 ± 0.24 ng/mL. Liver function test parameters were elevated compared with control subjects (
P
< 0.001). The increase in serum alpha-fetoprotein was higher (
P <
0.001) in HCV than HBsAg positive patients.
Conclusion:
Serum alpha-fetoprotein level was highest in HCV compared to HBsAg positive and hepatitis negative patients with CLD.
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Association of body mass index and abdominal adiposity with atherogenic lipid profile in Nigerians with type 2 diabetes and/or hypertension
Olufemi A Fasanmade, Ifedayo A Odeniyi, Christiana O Amira, Njideka U Okubadejo
November-December 2013, 54(6):402-407
DOI
:10.4103/0300-1652.126296
PMID
:24665155
Background:
We explored the relationship between anthropometric indices (obesity and abdominal adiposity) and the presence of an atherogenic lipid profile in Nigerians with major cardiovascular risk factors (type 2 diabetes mellitus-T2DM, hypertension-HBP, and concomitant disease).
Materials and Methods:
Using a prospective design, 278 patients with T2DM, HBP, or concomitant disease, attending out-patient diabetes and hypertension clinics at a tertiary institution in Nigeria were evaluated. All patients were cholesterol-lowering oral medication naοve. Demographic and clinical data and anthropometric measurements were documented. Fasting lipid profiles were measured in all cases. The cut-off points for defining dyslipidaemia were: Elevated total cholesterol (TC) (mg/dL) ≥200, elevated low-density lipoprotein cholestrol (LDL-C) (mg/dL) ≥100, low high-density lipoprotein cholesterol (HDL-C) (mg/dL) <40 for men and <50 for women, and high triglycerides (TG) (mg/dL) ≥150 mg/dL.
Results:
We found a significantly higher mean BMI (kg/m
[2]
) in the HBP group (30.5 ± 6.0) compared to T2DM (28.1 ± 5.9) and concomitant HBP and T2DM groups (29.4 ± 5.2) (
ANOVA
;
P
= 0.02). The most frequent dyslipidaemia was elevated LDL-C in 92 (96.8%) HBP, 73 (85.9%) T2DM and 79 (80.6%) concomitant disease. The frequency of low HDL-C was highest in T2DM (68.2%) compared to the other 2 groups (
P
= 0.03).
Conclusions:
Only TG levels were found to relate with any anthropometric index (waist circumference (WC) in this case) in Nigerians with major cardiovascular risk factors in this study. Routine anthropometric indices do not appear to be reliable surrogates for atherogenicity measured by abnormalities in TC, LDL-C and HDL-C.
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Interferon-gamma treatment kinetics among patients with active pulmonary tuberculosis
Olanisun Olufemi Adewole, Martin O Ota, Greg E Erhabor, Patrick Owiafe, Aliu Oladimeji, Daniel Obaseki
November-December 2013, 54(6):376-381
DOI
:10.4103/0300-1652.126287
PMID
:24665150
Introduction:
Interferon-γ (IFN-γ) is essential for defence against
Mycobacterium tuberculosis
; however, levels in patients with active tuberculosis (TB) and changes during treatment have not been documented in our tuberculosis patients in Nigeria, hence this study has been carried out.
Objective:
To determine variations, treatment kinetics, and predictive value of IFN-γ levels during treatment of active tuberculosis.
Design:
Patients with pulmonary tuberculosis were recruited and subsequently followed up for 3 months during treatment with anti-TB. Peripheral blood was collected for IFN-γ assays, C-reactive protein and others followed by a Mantoux test. IFN-γ levels produced by stimulation with TB antigens were determined by ELISA and repeated measurement of IFN-γ were done at 1 and 3 months of anti-TB therapy. Chi Associations and correlations between IFN-γ were determined. Regression analysis was done to determine association between serial IFN-γ and treatment outcome.
Results:
We recruited 47 patients with active tuberculosis with a mean age of 34.8 ± 3.6 years and M:F ratio of 1.12:1. Six (11%) were HIV positive. The mean level of IFN-γ induced by TB antigens was 629 ± 114.1 pg/ml, higher for HIV-negative PTB patients compared with HIV-positive PTB patients, 609.78 ± 723.9 pg/ml and 87.88 ± 130.0 pg/ml, respectively,
P
-value = 0.000. The mean level of IFN-γ induced by TB antigen increased significantly from 629 ± 114.1 pg/ml to 1023.46 + 222.8 pg/ml,
P
-value = 0.03 and reduced to 272.3 ± 87.7 pg/ml by the third month on anti-TB drugs,
P
-value = 0.001. Negative correlation was observed between the mean of baseline and chest X-ray involvement,
P
= 0.03. There was no significant correlation between sputum smear grade with baseline and follow-up IFN-γ levels. Three-month IFN-γ level among cured patients were higher than those with treatment failure, regression analysis showed that it does not predict outcome.
Conclusion:
IFN-γ may be useful in early detection and monitoring response; however, large scale studies are needed.
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Orthopaedic surgical treatment delays at a tertiary hospital in sub Saharan Africa: Communication gaps and implications for clinical outcomes
Adeleke O Ifesanya, Olumuyiwa J Ogundele, Joy U Ifesanya
November-December 2013, 54(6):420-425
DOI
:10.4103/0300-1652.126301
PMID
:24665159
Background:
Delay in surgical treatment is a source of distress to patients and an important reason for poor outcome. We studied the delay before carrying out scheduled operative orthopaedic procedures and the factors responsible for it.
Materials and Methods:
This prospective study was carried out between March 2011 and December 2012. Temporal details of the surgical procedures at our hospital were recorded in a proforma including the patients' perception of the causes of the delay to surgery. Based on the urgency of the need for surgery, patients were classified into three groups using a modification of the method employed by Lankester
et al
. Data was analyzed using the Statistical Package for the Social Sciences, version 17.0. Predictors of surgical delay beyond 3 days were identified by logistic regression analysis.
Results:
Two hundred and forty-nine patients with a mean age 36.2 ± 19.2 years and M:F ratio 1.3 were recruited. 34.1% were modified Lankester group A, 45.4% group B and 20.5% group C. 47 patients (18.9%) had comorbidities, hypertension being the commonest (22 patients; 8.8%). Median delay to surgery was 4 days (mean = 17.6 days). Fifty percent of emergency room admissions were operated on within 3 days, the figure was 13% for other admissions. Lack of theatre slot was the commonest cause of delay. There was full concordance between doctors and patients in only 70.7% regarding the causes of the delay. In 15.7%, there was complete discordance. Logistic regression analysis confirmed modified Lankester groups B and C (
P
= 0.003) and weekend admission (
P
= 0.016) as significant predictors of delay to surgery of >3 days.
Conclusion:
Promptness to operative surgical care falls short of the ideal. Theatre inefficiency is a major cause of delay in treating surgical patients in our environment. Theatre facilities should be expanded and made more efficient. There is a need for better communication between surgeons and patients about delays in surgical treatment.
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CASE REPORT
A Five (5) chamber heart (Cor Triatriatum) in Infancy: A rare congenital heart defect
Joseph Ezeogu, Tochukwu Ezeofor, Emeka Nwolisa, Osarieme Omokhua
November-December 2013, 54(6):430-432
DOI
:10.4103/0300-1652.126305
PMID
:24665161
Five-chambered heart is extremely rare in children. We report a case of asymptomatic five chamber heart detected in infancy. The patient is 2-day-old and managed in a special care baby unit (SCBU) for neonatal sepsis. During routine follow-up at the age of 1 month, she was found to have an asymptomatic murmur. Echocardiograph reported five-chambered heart, concluding that it is Cor triatriatum, supravalvular pulmonary stenosis and secundum atrial septal defect. The child is still been followed-up and is still asymptomatic at 7 months. Five-chambered heart, although rare, can occur even if asymptomatic.
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ORIGINAL ARTICLES
Routine haemoglobin electrophoresis screening in day case herniotomy in Nigerian children: Is it evidence-based?
Adesoji O Ademuyiwa, CO Bode, I Desalu, OA Elebute, JO Olatosi, E Temiye
November-December 2013, 54(6):408-410
DOI
:10.4103/0300-1652.126297
PMID
:24665156
Background:
To determine the prevalence of haemoglobinopathies in children who require day case herniotomy in our centre and ascertain if routine screening is necessary in all patients who require herniotomy.
Materials and Methods:
A 12-month retrospective analysis of patients requiring herniotomy in our centre. Data including age, sex, diagnosis, haemoglobin electrophoresis status, surgical outcome and hospital stay were analysed.
Results:
Ninety-five patients had complete records. There were 84 boys and 11 girls. M:F ratio: 7.6:1. The mean age was 3.2 0.6 years. Fifty-five point eight per cent of the patients had right inguinal hernias while 35.8% had left inguinal hernias. Eight patients (8.4%) had bilateral inguinal hernias. Twenty-six patients (27.4%) had haemoglobinopathies while 69 patients (72.6%) had homozygous Haemoglobin A. The Sickle Cell trait (HbAS) was found in 22 patients (23.2%) while the HbAC was found in three patients (3.2%). One patient (1.1%) had Sickle Cell disease (Haemoglobin SS). He had had blood transfusion and previous history of jaundice. All patients survived and all patients were discharged on the day of surgery (mean hospital stay: 4hrs (range: 2.5 hrs-12 hrs)) except the patient with Sickle Cell disease who was admitted a day before surgery and discharged a day after the operation.
Conclusion:
One in four children coming for day case herniotomy in our centre had the Sickle Cell trait while only 1% had the Sickle Cell disease. These findings are in keeping with the prevalence in the Nigerian population. Routine screening may not be necessary for all patients coming for herniotomy in our centre. Clear indication(s) should be outlined for screening.
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Online since 05
th
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