Dyspnea
Dyspnea
Dyspnea
Each year, more than 30 million African women in feature of infection during pregnancy, and the major
malaria-endemic areas become pregnant and are at risk detrimental effects of infection are low birth weight (LBW)
of infection with Plasmodium falciparum. Prevention of and maternal anaemia. In areas of stable transmission, it
malaria in pregnancy, which can have serious conse- is estimated that malaria during pregnancy causes up to
quences for both the mother and her unborn child, is a 10 000 maternal deaths each year, mainly as a result of
major public health challenge and a priority for the Roll severe anaemia, and accounts for approximately 8–14%
Back Malaria partnership. Roll Back Malaria recommends of LBW, and 3–8% of infant mortality. 1
a three-pronged approach for reducing the burden of
malaria among pregnant women, namely effective case Malaria and HIV
management of malaria infections, use of insecticide- HIV infection impairs a pregnant woman’s ability to
treated nets (ITNs) and, in areas of stable transmission, control P. falciparum infection. Women with HIV infection
Intermittent Preventive Treatment (IPT). are more likely to have symptomatic malaria infections
and to have an increased risk of an adverse birth outcome
due to malaria. In the presence of HIV infection, placental
Impact of malaria in pregnancy in malaria appears to be independent of the number of
different epidemiological settings pregnancies, so that the risk of placental malaria is similar
The symptoms and complications of malaria in preg- in HIV-infected multigravidae and HIV-negative
nancy vary according to transmission intensity and the primagravidae.
level of acquired immunity. Although these are pre-
sented as discrete epidemiological entities, the reality is
usually more of a continuum, with a range of transmis- Prevention and management of malaria
sion intensity, acquired immunity, and clinical presenta- during pregnancy
tion occurring within the same country. Areas of low or epidemic (unstable) transmission
In areas of low or unstable transmission, control of
Areas of low or epidemic (unstable) transmission malaria during pregnancy is achieved primarily by
Pregnant women living in areas of low or unstable prompt and effective treatment of acute episodes of
malaria transmission have little or no immunity to malaria, since IPT will be relatively ineffective in such
malaria, and are at a 2 to 3–fold higher risk of developing settings. Since malaria in a non-immune pregnant woman
severe disease as a result of malaria infection than are can rapidly progress to severe disease, any pregnant
non-pregnant adults living in the same area. In these woman with symptomatic malaria must receive urgent
areas, maternal death may result directly from the com- treatment with an effective antimalarial drug plus appro-
plications of severe malaria (hypoglycaemia, cerebral priate supportive treatment. Use of ITNs will decrease
malaria, and pulmonary oedema being particular prob- exposure to infective mosquito bites and would therefore
lems), or indirectly from malaria-related severe anaemia. be expected to provide protection from symptomatic
Malaria in pregnancy can also result in stillbirth, sponta- infection.
neous abortion, low birth weight (birth weight < 2.5 kg),
and neonatal death. Areas of high or moderate (stable) transmission
ITNs and IPT (see below) are the key components of the
Areas of high or moderate (stable) transmission preventive package for pregnant women living in areas of
Most pregnant women in malaria-endemic regions of stable transmission. P. falciparum parasites may be present
Africa live in areas of relatively stable transmission. In in the placenta and contribute to maternal anaemia even
these settings, the deleterious impact of malaria is par- in the absence of documented peripheral parasitaemia.
ticularly apparent in first and second pregnancies. Any pregnant woman with severe anaemia from a
Although parasite prevalence and density are higher malaria-endemic area must therefore be treated pre-
among pregnant women compared to non-pregnant sumptively with an effective antimalarial drug, whether
women, infection with P. falciparum is usually asympto- or not peripheral parasitaemia is present, and whether or
matic. Partial clinical immunity acquired during years of not she has a history of fever. In addition, all women in
exposure to the malaria parasite prior to pregnancy does malarious areas (regardless of endemicity) should receive
not prevent infection, but does reduce the risk of severe iron and folic acid supplementation as part of routine
disease. Clinical malaria is not, therefore, a prominent antenatal care.