Prevalence and Factors Associated with Adherence to Iron-Folic Acid Supplementation Among Pregnant Women in Eastern Sudan: A Cross-Sectional Study.

Purpose: The present study was conducted to determine the prevalence and factors associated with adherence to iron-folic acid supplementation (IFAS) among pregnant women in eastern Sudan. Methods: A cross-sectional survey was conducted among pregnant women who obtained antenatal care (ANC) at Gadarif Maternal Hospital in eastern Sudan between May 1 and August 31, 2023. Face-to-face interview questionnaires were used to gather sociodemographic, obstetric, and clinical data (age, parity, education, residence, and previous medical diseases). Knowledge of anemia and IFAS was assessed. Multivariate analysis was performed to adjust for confounders. Results: A total of 568 pregnant women were enrolled in the present study. Among them, 449 (79.0%) adhered to the IFAS. The multivariate analysis showed that the adjusted odds ratio (AOR) of IFAS adherence increased with ANC visits > 4 (AOR = 1.68, 95.0% CI = 1.01-2.77) and knowledge of anemia (AOR = 2.06, 95.0% CI = 1.437-3.276). In the univariate analysis, maternal occupation and knowledge of IFAS adherence were the only factors associated with IFAS adherence. Maternal age, parity, gestational age, education, residence, occupation, medical insurance, medical disease, and husband's occupation were not associated with IFAS. Forgetfulness (71.0%), frustration from taking many drugs (54.6%), and unpleasant tests of the supplement (50.7%) were the main reasons for not taking the IFAS. Conclusion: About four out of five pregnant women adhered to the IFAS, indicating a good level of adherence, especially among women who attended more than four ANC visits and those with good knowledge of anemia. More attention is needed to encourage ANC to increase adherence to IFAS.

Periconceptional folic acid usage and its associated factors in eastern Sudan: A cross-sectional study.

BACKGROUND: Several countries poorly adhere to the World Health Organization's recommendation of folic acid supplementation in the periconceptional period, especially in limited-resource settings. OBJECTIVE: The objective of this study was to investigate the prevalence of and the factors associated with folic acid usage in the periconceptional period among pregnant women at Gadarif Maternity Hospital in eastern Sudan. STUDY DESIGN: This is a cross-sectional study. METHODS: This study was conducted in eastern Sudan from April to September 2022. A total of 720 pregnant women in their first trimester were enrolled. The sociodemographic characteristics and clinical and obstetrical data of pregnant women in their first trimester were assessed using a face-to-face questionnaire. In addition, multivariate regression analysis was performed. RESULTS: In this study, the median (interquartile range) of the age and gravidity of the enrolled women was 26.3 (24.14-29.52) years and 2 (1-4), respectively. Of these 720 women, 423 (58.8%) used folic acid during the periconceptional period, while 27 (3.7%) women used folic acid in the preconceptional period. None of the investigated factors (age, residence, education, employment, body mass index, or gravidity) were associated with periconceptional use of folic acid. CONCLUSION: The study revealed a low prevalence of folic acid usage in preconceptional period among pregnant women in eastern Sudan. Additional efforts are needed to promote folic acid usage in the preconceptional period as well as in the first trimester.

Problems with gestational age estimation by last menstrual period and ultrasound among late antenatal care attendant women in a low-resource setting in Africa, Sudan.

INTRODUCTION: Accurate estimation of gestational age is essential to interpret and manage several maternal and perinatal indicators. Last menstrual period (LMP) and ultrasound are the two most common methods used for estimating gestational age. There are few published studies comparing the use of LMP and ultrasound in Sub-Saharan Africa to estimate gestational age and no studies on this topic in Sudan. MATERIAL AND METHODS: A cross-sectional study was conducted in Gadarif Maternity Hospital in Sudan during November through December 2022. Sociodemographic information was collected, and the date of the first day of each participant's LMP was recorded. Ultrasound examinations were performed (measuring crown-rump length in early pregnancy and biparietal diameter and femur length in late pregnancy) using a 3.5-MHz electronic convex sector probe. Bland-Altman analysis was performed. RESULTS: Four-hundred seventy-six pregnant women were enrolled. The median (interquartile range [IQR]) age and gravidity was 24.0 (20.0‒29.0) years and 2 (1‒4), respectively. There was a strong positive correlation between gestational age determined by LMP and ultrasound (r = 0.921, P < 0.001). The mean gestational age estimate according to LMP was higher than that determined by ultrasound, with a difference, on average, of 0.01 week (95% confidence interval [CI]: - 0.05, 0.07). Bland-Altman analysis showed the limits of agreement varied from - 1.36 to 1.38 weeks. A linear regression analysis showed proportional bias. The coefficient of difference of the mean was equal to 0.26 (95% CI: 0.01, 0.03, P < 0.001). CONCLUSION: Based on our results, there was a bias in LMP-based gestational age estimates when compared with the reproducible method (ultrasound).

The association between blood groups, Rhesus factors, body mass index and obesity among pregnant women at Gadarif Maternity Hospital, Eastern Sudan.

BACKGROUND: The existing evidence regarding the link between blood groups and obesity remains inconclusive, and there is a noticeable lack of data on the potential association between blood groups and obesity during pregnancy. Consequently, this study aimed to investigate the association between blood groups, body mass index (BMI), and obesity among pregnant women receiving care at Gadarif Maternity Hospital in eastern Sudan. METHODS: This cross-sectional study was conducted in eastern Sudan during the period from April to September 2022. A questionnaire was employed to gather sociodemographic information from pregnant women. BMI was computed based on weight and height. Blood groups determinations were made using the agglutination method which is commonly used in the study's region. Multinominal and multiple linear regression analyses were performed, and adjusted for covariates in the regression models. RESULTS: Eight hundred and thirty-three pregnant women were enrolled with a median (interquartile range, IQR) gestational age of 10.0 (9.3‒11.0) weeks. The median (IQR) BMI of the women was 26.3(24.2‒29.4) kg/m2. Of these women, 11(1.3%) were underweight, 268(32.2%) were of normal weight, 371(44.5%) were overweight, and 183(22.0%) were obese. One hundred eighty-three (22.0%) women had blood group A, 107 (12.8%) had blood group B, 56 (6.7%) had blood group AB, and 487(58.5%) had blood group O. While 798 (95.8%) of the women were Rhesus factor positive, only 35 (4.2%) were Rhesus factor negative. Multinominal regression showed that only urban residency (adjusted odds ratio, AOR = 2.46, 95% confidence interval, CI = 1.47‒4.13) was associated with overweight. Blood groups and Rhesus factors were not associated with overweight. Age (AOR = 1.06, 95% CI = 1.01‒1.11), urban residence (AOR = 2.46, 95%, CI = 1.47‒4.13), and blood group O (AOR = 1.60, 95%, CI = 1.06‒2.40), were associated with obesity. Rhesus factors were not associated with obesity. In the multiple linear regression, age (coefficient = 0.07, P = 0.028), gravidity (coefficient = 0.25, P = 0.014), urban residence (coefficient = 1.33, P = 0.001), and blood group O (coefficient = 0.68, P = 0.035) were associated with BMI. CONCLUSIONS: Blood group O was associated with obesity and high BMI among pregnant women in eastern Sudan. Rhesus factors were not associated with obesity.

Association of genotype III of dengue virus serotype 3 with disease outbreak in Eastern Sudan, 2019.

BACKGROUND: Dengue fever (DF) is an arthropod-borne disease caused by dengue virus (DENV). DENV is a member of the genus Flavivirus in the family Flaviviridae. Recently, DENV has been reported as an important emerging infectious viral pathogen in Sudan. Multiple outbreaks and sporadic cases of DF have been frequently reported in the eastern region of Sudan. The present study was conducted to confirm DENV outbreak in Kassala State, eastern Sudan, 2019, and to provide some information on the molecular characterization of the DENV isolate associated with the disease outbreak. METHODS: A hundred serum samples were collected during the outbreak from residents of Kassala State, Sudan, 2019. ELISA was used to detect DENV non structural protein NS1 (DENV-NS1) in acute phase sera sampled during the disease outbreak. RT-PCR assays were used to amplify a fragment of the capsid/pre-membrane region (CprM) of the viral polyprotein gene. The PCR products of the amplified CprM region of the viral polyprotein gene were purified and partial sequences were generated and used to confirm the specificity of DENV sequences and to identify the virus serotype. Phylogenetic tree was constructed to determine the genotype of DENV associated with the outbreak. RESULTS: Using DENV-NS1 ELISA assay, DENV infection was confirmed in 23% sampled sera. The detection of DENV RNA was made possible using group-specific RT-PCR assay. The virus was serotyped as DENV serotype 3 (DENV-3) using DENV serotype-specific RT-PCR assay. Phylogenetic analysis of the partial CprM sequences of the viral polyprotein gene indicates that the virus belonged to genotype III of DENV-3. CONCLUSION: The scientific data presented in this investigation confirmed that genotype III of DENV-3 was associated with the disease outbreak in eastern Sudan, 2019. The study represents the first report on molecular characterization of DENV-3 in Sudan.

Recent transmission of dengue virus and associated risk Facors among residents of Kassala state, eastern Sudan.

BACKGROUND: Acute arboviral infections are distributed worldwide including Sudan, and dengue fever (DENV) is not an exception. The virus activity has recently been frequently reported in Kassala State, eastern Sudan. However, an appropriate epidemiological study would be necessary to provide accurate and precise estimates of the magnitude of recent DENV transmission in this area of endemicity. METHODS: In the present investigation, a cross sectional study was conducted to advance beyond the current knowledge of the epidemiology of the disease in Kassala State. The prevalence of the disease was estimated and associated risk factors were determined. Sampled sera were collected and screened for recent dengue transmissionas as determined by DENV-IgM enzyme-linked immunosorbent assay (ELISA). The collection of data for risk assessment was supported by a well designed structured questionnaire. RESULTS: The prevalence of recent DENV infection was estimated to be (11.42%). Potential risk factors to DENV seropsitivity include, age (OR = 3.24, CI = 1.81-5.77,p-value = 0.001); low income (OR = 3.75, CI = 1.57-8.93, p-value = 0.027); mosquito control (OR = 4.18, CI = 2.33-7.51, p-value = 0.004); and localities. CONCLUSION: The present study showed a high rate of circulating DENV IgM antibodies among the participants of the study (11.42%), suggesting recent transmission of DENV in Kassala State, eastern Sudan. The frequent occurrence of DENV infections necessitates the need for improved surveillance programs and prevention measures to combat this important arboviral disease in Sudan.

Prevalence of dengue fever virus antibodies and associated risk factors among residents of El-Gadarif state, Sudan.

BACKGROUND: Dengue fever, caused by dengue virus (DENV), has become one of the most important mosquito-borne viral diseases with a steady rise in global incidence, including the Sudan. Sporadic cases and frequent acute febrile illness outbreaks, compatible with Dengue fever, have been reported in El-Gadarif State, Sudan. However, diagnosis was based almost exclusively on clinical signs without confirmatory laboratory investigations. Despite the magnitude of the problem in El-Gadarif State, no information is currently available with regard to the epidemiology of the disease in this State. El-Gadarif State is one of the largest commercial centers in the Sudan. The objective of the present investigation is to estimate the prevalence of DENV antibodies, and determine the potential risk factors associated with seropositivity among residents of El-Gadarif State. METHODS: A cross sectional study was conducted in a total of 701residents randomly selected from all 10 localities in El-Gadarif State. The sera from the 701 residents were tested for the presence of DENV-specific immunoglobulin G (IgG) antibodies using a commercially available Anti-dengue IgG enzyme-linked immunosorbent assay (ELISA). RESULTS: Among the 701 residents, 334 residents (47.6%) were seropositive for DENV. Mosquito control (OR = 2.73, CI = 1.37-5.87, p-value = 0.001); low income (OR = 2.31, CI: 1.71-6.36, p value = 0.032); sleeping out-doors (OR = 3.73, CI = 2.63-6.23, p-value = 0.013), and localities were determined as potential risk factors for contracting DENV infection. CONCLUSIONS: The prevalence rate of DENV antibodies among residents of El-Gadarif State is significantly high (47.6%). Further epidemiologic studies including, distribution of mosquito vectors and implementation of improved surveillance are urgently warranted for better prediction and prevention of a possible DENV outbreak in El-Gadarif State, Sudan.

"Kala-Azar is a Dishonest Disease": Community Perspectives on Access Barriers to Visceral Leishmaniasis (Kala-Azar) Diagnosis and Care in Southern Gadarif, Sudan.

Early diagnosis and treatment is the principal strategy to control visceral leishmaniasis (VL), or kala-azar in East Africa. As VL strikes remote rural, sparsely populated areas, kala-azar care might not be accessed optimally or timely. We conducted a qualitative study to explore access barriers in a longstanding kala-azar endemic area in southern Gadarif, Sudan. Former kala-azar patients or caretakers, community leaders, and health-care providers were purposively sampled and thematic data analysis was used. Our study participants revealed the multitude of difficulties faced when seeking care. The disease is well known in the area, yet misconceptions about causes and transmission persist. The care-seeking itineraries were not always straightforward: "shopping around" for treatments are common, partly linked to difficulties in diagnosing kala-azar. Kala-azar is perceived to be "hiding," requiring multiple tests and other diseases must be treated first. Negative perceptions on quality of care in the public hospitals prevail, with the unavailability of drugs or staff as the main concern. Delay to seek care remains predominantly linked to economic constraint: albeit treatment is for free, patients have to pay out of pocket for everything else, pushing families further into poverty. Despite increased efforts to tackle the disease over the years, access to quality kala-azar care in this rural Sudanese context remains problematic. The barriers explored in this study are a compelling reminder of the need to boost efforts to address these barriers.

Assessment of blood pressure control in adult hypertensive patients in eastern Sudan.

BACKGROUND: The rate of blood pressure (BP) control in adult hypertensive patients is poor and the reasons for poor control of BP pressure are not fully understood globally. This study aimed to assess the rate and factors associated with BP control in adult hypertensive patients in Sudan. METHODS: A hospital-based cross-sectional study was conducted in adult hypertensive Sudanese patients at Gadarif Hospital in eastern Sudan from November 2016 to March 2017. Information on sociodemographic characteristics of the participants, comorbidities, antihypertensive medication, and adherence to antihypertensive medication was gathered from patients using a questionnaire. Fasting cholesterol and triglyceride levels were measured. RESULTS: A total of 380 patients were enrolled. Of them, 234 (61.6%) were women. The mean (SD) age of the participants was 57.8 (11.1) years (range: 25-93 years). Over one-third (n = 147, 38.7%) of the participants were taking more than one antihypertensive medication. Approximately one-third (29.5%) of the participants were non-adherent to medication. The rate of BP control was 45.3%. In binary logistic regression analyses, age, sex, physical inactivity, adding salt to food, drinking coffee, body mass index, and the lipid profile were not associated with uncontrolled BP. However, non-adherence to medication was the main factor associated with uncontrolled BP (odds ratio = 5.29, 95% confidence interval = 3.16-8.83, P <  0.001). CONCLUSIONS: Almost half of hypertensive patients in follow-up have uncontrolled BP, mainly due to non-adherence to medicine. We recommend further research on drug adherence to improve the rate of BP control in this setting (Gadarif) of the Sudan.

Epidemiology of visceral leishmaniasis among children in Gadarif hospital, eastern Sudan.

BACKGROUND: Since 1900s, visceral leishmaniasis (VL) has been among the most important health problems in Sudan, particularly in the endemic areas such as eastern and central regions. METHODS: This was a cross sectional, hospital-based study conducted from 1st January 2015 to 31st December 2015 to investigate the epidemiological factors of VL in Gadarif hospital, eastern Sudan. RESULTS: During the study period there were 47 identified children with VL among 145 suspected cases. The most common clinical presentations were fever (47, 100%), pallor (47, 100%), weight loss (40, 85.1%), splenomegaly (37, 78.7%), lymphadenopathy (33, 70.2%), vomiting (32, 68%) cough (28, 59%), loss of appetite (22, 46.8%), diarrhoea (17, 36.1%) and jaundice (5, 10.6%). With regard to the outcome after short term follow up 37 patients (78.8%) improved without complications, while 3 (6.4%, 2 (4.3%), 2 (4.3%), 1 (2.1%), 1 (2.1%) and 1 (2.1%) developed pneumonia, otitis media, septicaemia, urinary tract infection, parasitic infestation and PKDL respectively. Lower mean of haemoglobin level was observed among the VL cases in comparison with the suspected cases (in whom VL was excluded) haemoglobin level {8.9 (3.1) Vs 11 (6.3), P = 0.021}. Again more proportion of anaemic (47 (100%) Vs 14 (14.2%), P = 0.000) and severely anaemic (23 (48.9%) Vs 2 (2%), P = 0.006) patients was detected among the infected children. Using logistic regression analyses there was significant association between rural residence (CI = 1.5-24, OR = 19.1, P = 0.023), male gender (CI = 6.6-18.7, OR = 6.4, P = 0.001) and VL among children. CONCLUSIONS: While there is an advance in prevention and management of visceral leishmaniasis our results indicate that VL is still a public health problem with its severe complications among children in eastern Sudan.

Trend in cumulative cases and mortality rate among visceral leishmaniasis patients in Eastern Sudan: a 14-year registry, 2002-2015.

BACKGROUND: Leishmaniasis is one of the neglected infectious diseases of the world. This disease largely affects individuals of low socio-economic level, mainly in developing countries. METHODS: The aim of this study was to investigate the cumulative number of cases, case fatality rate, and trend in incidence and mortality rate of visceral leishmaniasis (VL) in Eastern Sudan. A retrospective descriptive study was performed through analysis of the database managed by the Ministry of Health in Gadarif State, which includes all cases of VL. RESULTS: Over the 14-year study period (2002-2015), a total of 51773 patients were registered in Gadarif State with clinical and laboratory evidence of proven VL. The trend in VL was considerably higher over the years 2003-2005 as compared to the last 5 years of 2011-2015. The highest fatality rate was observed in 2002 (4.8%) and it had declined in 2014 (1.1%) and 2015 (1.7%). Rural residence was statistically associated with death related to VL (p=0.021). CONCLUSIONS: This study showed a high number of cumulative cases of VL in Eastern Sudan. The fatality rate was found to be highest among rural residents and has declined in the last 5 years. Thus immediate interventions are needed in terms of health education and the implementation of preventive measures, with a specific focus on people residing in rural areas.

Human immune deficiency virus (HIV) infection during pregnancy at Gadarif hospital, Eastern Sudan.

This was a prospective study conducted on all pregnant and parturient women attending Gadarif Maternity Hospital, Sudan from January 2009 to December 2013 to investigate the maternal characteristics, pregnancy outcomes and estimate of maternal to child transmission of HIV among HIV infected women. During the study period, there were 26 HIV positive mothers among 6420 tested women yielding an incidence rate of 0.4%. The majority of these 26 infected women were of urban residence (69.2%), presented with normal CD4+ T cell count; ? 350\cu. mm3 (96.2%), had less than secondary education (57.7%) and housewives (84.6%). The mean age (SD) was significantly varied between the sero-positive and sero-negative women, 25.9 (5.7) vs. 36.1 (5.7), p = <0.001. More proportion of infected women had maternal anaemia and gave preterm birth, and none of the newborn babies was HIV infected until the age of 96 weeks. It is thus HIV infected women in eastern Sudan were young and likely desire more children.

Concept of defensive medicine and litigation among Sudanese doctors working in obstetrics and gynecology.

BACKGROUND: Obstetrics and gynaecology always has reputation for being a highly litigious. The field of obstetrics and gynaecology is surrounded by different circumstances that stimulate the doctors to practice defensive medicine. METHODS: This study was directed to assess the extent and the possible effect of defensive medicine phenomenon (in term of knowledge and prevalence) on medical decision making among different grades of obstetric and gynaecologic Sudanese doctors, and to determine any experience of medical litigations with respect to sources and factors associated with it (in term of area of work, characteristics of the area at which the doctors worked, professionalism, hospitals systems…ect). RESULTS: A total of 117 doctors were approached, their distribution according to job description was as follow: consultants (42.7%, 50\117) registrars (34.2%, 40\117) and specialists (23.1%, 27\117). The majority 89.7% had the impression that litigation against doctors are increasing and 27.6% had a direct experience of litigation. In this study less than one half (42.7%) of the surveyed doctors knew the concept of defensive medicine and 71.8% reported practicing one or another form of defensive medicine. The different sources of the litigations reported by the doctors included: maternal death (n = 15), perinatal death (n = 5), other {misdiagnosis, intra-uterine fetal death, uterine perforation, rupture uterus} (n = 4), fetal distress (n = 3), injury to viscera (n = 3) and shoulder dystocia (n = 2). In this study the experience of medical litigation was significantly observed among those who worked in area of blame culture (90.6% Vs 56.5%, P = 0.000). In logistic regression model, there was no significant difference between those who knew the concept of defence medicine and those who didn't. CONCLUSION: There should be strategic plan to reduce the practice of defensive medicine and medical litigation against doctors.

Estimating malaria parasite density among pregnant women at central Sudan using actual and assumed white blood cell count.

BACKGROUND: Microscopic examination using Giemsa-stained thick blood films remains the reference standard for detection of malaria parasites and it is the only method that is widely and practically available for quantifying malaria parasite density. There are few published data (there was no study during pregnancy) investigating the parasite density (ratio of counted parasites within a given number of microscopic fields against counted white blood cells (WBCs) using actual number of WBCs. METHODS: Parasitaemia was estimated using assumed WBCs (8,000), which was compared to parasitaemia calculated based on each woman's WBCs in 98 pregnant women with uncomplicated Plasmodium falciparum malaria at Medani Maternity Hospital, Central Sudan. RESULTS: The geometric mean (SD) of the parasite count was 12,014.6 (9,766.5) and 7,870.8 (19,168.8) ring trophozoites /µl, P <0.001 using the actual and assumed (8,000) WBC count, respectively. The median (range) of the ratio between the two parasitaemias (using assumed/actual WBCs) was 1.5 (0.6-5), i e, parasitaemia calculated assuming WBCs equal to median (range) 1.5 (0.6-5) times higher than parasitaemia calculated using actual WBCs. There were 52 out of 98 patients (53%) with ratio between 0.5 and 1.5. For 21 patients (21%) this ratio was higher than 2, and for five patients (5%) it was higher than 3. CONCLUSION: The estimated parasite density using actual WBC counts was significantly lower than the parasite density estimated using assumed WBC counts. Therefore, it is recommended to use the patient`s actual WBC count in the estimation of the parasite density.

Factors associated with perinatal mortality in Kassala, Eastern Sudan: a community-based study 2010-2011.

This study investigated the factors associated with perinatal mortality in eastern Sudan from 2010 to 2011. Among 808 deliveries, there were 15 pairs of twins, giving 823 babies at risk of perinatal deaths. There were 761 live births and 62 perinatal deaths. Of the 62 perinatal deaths, 25 (40.3%) were stillbirths and 37 (59.7%) were early neonatal deaths. The stillbirth risk, early neonatal mortality risk and perinatal mortality rate were 30.9 per 1000 pregnancies, 48.6 per 1000 live births and 75.3 per 1000 births, respectively. In the logistic regression model, home delivery [odds ratio (OR) = 5.1; confidence interval CI = 1.8-14; p = 0.001] and parity ≥3 (OR = 4.5; CI = 2.2-8.8; p < 0.001) were predictors for perinatal deaths, whereas use of antenatal care (OR = 0.3; CI = 0.1-0.6; p = 0.002), use of a mosquito net (OR = 0.07; CI = 0.03-0.1; p < 0.001) and antenatal iron supplementation for at least 3 months (OR = 0.06; CI = 0.02-0.1; p < 0.001) were significant protective factors of perinatal deaths.

Reliability of rapid diagnostic test for diagnosing peripheral and placental malaria in an area of unstable malaria transmission in Eastern Sudan.

BACKGROUND: Diagnosing Plasmodium falciparum malaria during pregnancy is a great challenge for clinicians because of the low density of parasites in the peripheral blood and parasite sequestration in the placenta. Nevertheless, few data on the use of malaria rapid diagnostic test (RDT) during pregnancy have been published. METHODS: P. falciparum infections were assessed in 156 febrile pregnant women by microscopic examination of their blood smears and by RDT and polymerase chain reactions (PCR). In addition, 150 women were assessed at the time of delivery by microscopy, RDT, PCR and placental histology investigations. The study was conducted at the Gadarif Hospital, Eastern Sudan. The SD Bioline P. f / P. v (Bio Standard Diagnostics, Gurgaon, Korea) RDT kit was evaluated in this study. RESULTS: Among the febrile pregnant women, 17 (11.0%), 26 (16.7%) and 18 (11.5%) positive cases of P. falciparum were detected by microscopy, RDT, and PCR, respectively. The sensitivity and specificity of the microscopy was 94.4% and 100%, respectively. The corresponding values for RDT evaluation were 83.3% and 92.0%, as compared with PCR as the gold standard.While there were no detected cases of malaria by microscopic examination of blood smears, 27 (18.0%), 21(14.0%) and 46 (30.7%) out of the 150 placentae investigated had P. falciparum as determined by RDT, PCR, and histology, respectively. The sensitivity and specificity for RDT was 17.4% and 81.7%, respectively. The corresponding values for PCR were 6.5% and 82.7%, where histology was used as the gold standard. CONCLUSIONS: The RDT kit used in this study has poor performance for peripheral and placental P. falciparum malaria detection in this setting. VIRTUAL SLIDES: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1092363465928479.

Thrombocytopenia in pregnant women with Plasmodium falciparum malaria in an area of unstable malaria transmission in eastern Sudan.

BACKGROUND: Blood platelet levels are being evaluated as predictive and prognostic indicators of the severity of malaria infections in humans. However, there are few studies on platelets and Plasmodium falciparum malaria during pregnancy. METHODS: A case-control study was conducted at Gadarif Hospital in Eastern Sudan, an area characterized by unstable malaria transmission. The aim of the study was to investigate thrombocytopenia in pregnant women with P. falciparum malaria (cases) and healthy pregnant women (controls). RESULTS: The median (interquartile) platelet counts were significantly lower in patients with malaria (N = 60) than in the controls (N = 60), 61, 000 (43,000-85,000) vs. 249,000 (204,000-300,000)/µL, respectively, p < 0.001. However, there was no significant difference in the platelet counts in patients with severe P. falciparum malaria (N = 12) compared with those patients with uncomplicated P. falciparum malaria (N = 48), 68, 000 (33,000-88,000)/µL vs. 61, 000 (45,000-85,000)/µL, respectively, p = 0.8. While none of the control group had thrombocytopenia (platelet count <75, 000/µL), it was found that 6/12 (50%) and 27/48 (56.2%) (p <0.001) of the patients with severe malaria and uncomplicated malaria had thrombocytopenia, respectively. Pregnant women with P. falciparum malaria, compared with the pregnant healthy control group, were at higher risk (OR = 10.1, 95% CI = 4.1-25.18; p < 0.001) of thrombocytopenia. Two patients experienced bleeding, and there was one maternal death due to cerebral malaria where the patient's platelet count was only 28,000/µL. CONCLUSION: P. falciparum malaria is associated with thrombocytopenia in pregnant women in this setting. More research is needed.

Monocytes and macrophages and placental malaria infections in an area of unstable malaria transmission in eastern Sudan.

BACKGROUND: Maternal immunity is thought to play a major role in the increased susceptibility of pregnant women to Plasmodium falciparum malaria. Few studies exist on immunohistochemical characterization of the placental inflammatory infiltrate. The current study was conducted in Gadarif hospital in an area characterized by unstable malaria transmission in eastern Sudan. METHOD: Ninety three placentae were investigated for malaria histological changes and immunohistochemical study for monocytes and macrophages (CD68). RESULTS: While 1(1.1%), 2(2.2%) and 20(21.5%) of the 93 placentae had acute, chronic and past malaria infections, 70(75.2%) had no malaria infections. Monocytes and macrophage (CD 68) were detected in 29 (31.2%) of these 93 placentae. Significantly higher rate of monocytes and macrophage were detected in placentae with malaria infections [11/23 (47.8%) vs. 18/70 (25.7%); P = 0.047] especially in placentae with past malaria infections. Placental malaria infections and monocytes and macrophages cells infiltration were not different between primiparae and multiparae. There was no significant difference in the birth weight between the women with placental malaria infections/monocytes and macrophages cells infiltration and those who had no placental malaria infections/cellular infiltrations. CONCLUSION: Significantly higher rate of monocytes and macrophage were detected in placentae with malaria infections. Neither placental malaria infections nor cellular infiltrates were associated with parity or lead to reduction of birth weight.