Effectiveness of intermittent preventive treatment with sulfadoxine-pyrimethamine during pregnancy on placental malaria, maternal anaemia and birthweight in areas with high and low malaria transmission intensity in Tanzania

2014 ◽  
Vol 19 (9) ◽  
pp. 1048-1056 ◽  
Author(s):  
Dominic Mosha ◽  
Jaffu Chilongola ◽  
Rabi Ndeserua ◽  
Felista Mwingira ◽  
Blaise Genton
Keyword(s):  
Malaria Transmission ◽  
Placental Malaria ◽  
Intermittent Preventive Treatment ◽  
Preventive Treatment ◽  
Transmission Intensity ◽  
Maternal Anaemia ◽  
Malaria Transmission Intensity ◽  
Low Malaria Transmission

scholarly journals Effect of Sulfadoxine-Pyrimethamine doses for prevention of malaria during pregnancy in hypoendemic area in Tanzania

2020 ◽  
Author(s):  
Wigilya Padili Mikomangwa ◽  
Omary Minzi ◽  
Ritah Mutagonda ◽  
Vito Baraka ◽  
Eulambius M. Mlugu ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Malaria Transmission ◽  
Geometric Mean ◽  
Placental Malaria ◽  
Intermittent Preventive Treatment ◽  
Premature Delivery ◽  
Maternal Anaemia ◽  
Malaria During Pregnancy ◽  
Placental Blood ◽  
Low Malaria Transmission

Abstract Background Malaria in pregnancy increases the risk of deleterious maternal and birth outcomes. The use of ≥3 doses of sulfadoxine-pyrimethamine (SP) for intermittent preventive treatment of malaria (IPTp-SP) is recommended for preventing the consequences of malaria during pregnancy. This study assessed the effect of IPTp-SP for prevention of malaria during pregnancy in low transmission settings. Methods A cross-sectional study that involved consecutively selected 1,161 pregnant women was conducted at Mwananyamala regional referral hospital in Dar es Salaam. Assessment of the uptake of IPTp-SP was done by extracting information from antenatal clinic cards. Maternal venous blood, cord blood, placental blood and placental biopsy were collected for assessment of anaemia and malaria. High performance liquid chromatography with ultraviolet detection (HPLC-UV) was used to detect and quantify sulfadoxine (SDX). Dried blood spots (DBS) of placental blood were collected for determination of sub-microscopic malaria using polymerase chain reaction (PCR). Results In total, 397 (34.2%) pregnant women reported to have used sub-optimal doses (≤2) while 764(65.8%) used optimal doses (≥3) of IPTp-SP at the time of delivery. The prevalence of placental malaria as determined by histology was 3.6%. Submicroscopic placental malaria was detected in 1.4% of the study participants. Women with peripheral malaria had six times risk of maternal anaemia than those who were malaria negative (aOR, 5.83; 95% CI, 1.10-30.92; p = 0.04). The geometric mean plasma SDX concentration was 10.76± 2.51μg/mL. Sub-optimal IPTp-SP dose was not associated with placental malaria, premature delivery and fetal anaemia. The use of ≤2 doses of IPTp-SP increased the risk of maternal anaemia by 1.36 fold compared to ≥3 doses (aOR, 1.36; 95%CI, 1.04-1.79; p = 0.02). Conclusion The use of <2 doses of IPTp-SP increased the risk of maternal anaemia. However, sub-optimal doses (≤2 doses) were not associated with increased the risk of malaria parasitaemia, fetal anaemia and preterm delivery among pregnant women in low malaria transmission setting. The use of optimal doses (≥3doses) of IPTp-SP and complementary interventions should continue even in areas with low malaria transmission.

scholarly journals Effect of Sulfadoxine-Pyrimethamine doses for prevention of malaria during pregnancy in hypoendemic area in Tanzania

2019 ◽  
Author(s):  
Wigilya Padili Mikomangwa ◽  
Omary Minzi ◽  
Ritah Mutagonda ◽  
Vito Baraka ◽  
Eulambius M. Mlugu ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Malaria Transmission ◽  
Geometric Mean ◽  
Placental Malaria ◽  
Intermittent Preventive Treatment ◽  
Premature Delivery ◽  
Maternal Anaemia ◽  
Malaria During Pregnancy ◽  
Placental Blood ◽  
Low Malaria Transmission

Abstract Background: Malaria in pregnancy increases the risk of deleterious maternal and birth outcomes. The use of ≥3 doses of sulfadoxine-pyrimethamine (SP) for intermittent preventive treatment of malaria (IPTp-SP) is recommended for preventing the consequences of malaria during pregnancy. However, the effect of IPTp-SP doses in low malaria transmission settings is not well established. This study assessed the effect of SP doses for prevention of malaria during pregnancy in low transmission settings. Methods: A cross-sectional study that involved consecutively selected 1,161 pregnant women was conducted at Mwananyamala regional referral hospital in Dar es Salaam. Assessment of the uptake of IPTp-SP was done by extracting information from antenatal clinic cards. Maternal venous blood, cord blood, placental blood and placental biopsy were collected for assessment of anaemia and malaria. High performance liquid chromatography with ultraviolet detection (HPLC-UV) was used to detect and quantify sulfadoxine (SDX). Dried blood spots (DBS) of placental blood were collected for determination of sub-microscopic malaria using polymerase chain reaction (PCR).Results: In total, 397 (34.2%) pregnant women reported to have used sub-optimal doses (≤2) while 764(65.8%) used optimal doses (≥3) of IPTp-SP at the time of delivery. The overall prevalence of placental malaria as determined by histology was 3.6%. Submicroscopic placental malaria was detected in 1.4% of the study participants. Women with peripheral malaria had six times risk of maternal anaemia than those who were malaria negative (aOR, 5.83; 95% CI, 1.10-30.92; p = 0.04). The overall geometric mean plasma SDX concentration was 10.76± 2.51μg/mL. Sub-optimal IPTp-SP dose was not associated with placental malaria, premature delivery and foetal anaemia. The use of ≤2 doses of IPTp-SP increased the risk of maternal anaemia by 1.36 fold compared to ≥3 doses (aOR, 1.36; 95%CI, 1.04-1.79; p = 0.02).Conclusion: The use of <2 doses of IPTp-SP increased the risk of maternal anemia. However, sub-optimal doses (≤2 doses) were not associated with increased the risk of malaria parasitaemia, foetal anaemia and preterm delivery among pregnant women in low malaria transmission setting. The use of optimal doses (≥3doses) of IPTp-SP and complementary interventions should continue even in areas with low malaria transmission.

scholarly journals The Diversity, Multiplicity of Infection and Population Structure of P. falciparum Parasites Circulating in Asymptomatic Carriers Living in High and Low Malaria Transmission Settings of Ghana

Genes ◽  
2019 ◽  
Vol 10 (6) ◽  
pp. 434 ◽  
Author(s):  
Zakaria Abukari ◽  
Ruth Okonu ◽  
Samuel B. Nyarko ◽  
Aminata C. Lo ◽  
Cheikh C. Dieng ◽  
...  
Keyword(s):  
Plasmodium Falciparum ◽  
Population Structure ◽  
Malaria Transmission ◽  
Parasite Prevalence ◽  
Transmission Intensity ◽  
Multiplicity Of Infection ◽  
Malaria Transmission Intensity ◽  
Ms Analysis ◽  
Greater Accra Region ◽  
Low Malaria Transmission

Background: Diversity in Plasmodium falciparum poses a major threat to malaria control and elimination interventions. This study utilized 12 polymorphic microsatellite (MS) markers and the Msp2 marker to examine diversity, multiplicity of infection (MOI) as well as the population structure of parasites circulating in two sites separated by about 92 km and with varying malaria transmission intensities within the Greater Accra Region of Ghana. Methods: The diversity and MOI of P. falciparum parasites in 160 non-symptomatic volunteers living in Obom (high malaria transmission intensity) and Asutsuare (low malaria transmission intensity) aged between 8 and 60 years was determined using Msp2 genotyping and microsatellite analysis. Results: The prevalence of asymptomatic P. falciparum carriers as well as the parasite density of infections was significantly higher in Obom than in Asutsuare. Samples from Asutsuare and Obom were 100% and 65% clonal, respectively, by Msp2 genotyping but decreased to 50% and 5%, respectively, when determined by MS analysis. The genetic composition of parasites from Obom and Asutsuare were highly distinct, with parasites from Obom being more diverse than those from Asutsuare. Conclusion: Plasmodium falciparum parasites circulating in Obom are genetically more diverse and distinct from those circulating in Asutsuare. The MOI in samples from both Obom and Asutsuare increased when assessed by MS analysis relative to MSP2 genotyping. The TA40 and TA87 loci are useful markers for estimating MOI in high and low parasite prevalence settings.

scholarly journals Invasive Salmonella Infections in Areas of High and Low Malaria Transmission Intensity in Tanzania

2013 ◽  
Vol 58 (5) ◽  
pp. 638-647 ◽  
Author(s):  
H. M. Biggs ◽  
R. Lester ◽  
B. Nadjm ◽  
G. Mtove ◽  
J. E. Todd ◽  
...  
Keyword(s):  
Malaria Transmission ◽  
Transmission Intensity ◽  
Malaria Transmission Intensity ◽  
Salmonella Infections ◽  
Low Malaria Transmission
Sign in / Sign up

Export Citation Format

Share Document