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Introduction
Multiple myeloma (MM) is a cancer of plasma cells of blood in bone
marrow which leads to overproduction of aberrant immunoglobulin
in the blood, a condition known as paraproteinemia. It is one of the
commonest hematological malignancies of public health importance
in low-income countries of sub-Saharan Africa. It accounts for 10%-
15% of all lymphohematopoietic cancers, 1% of all cancer diagnosis
and 0.9%-2% of all cancer-related deaths globally.
1
It accounts for
about 8.2% of hematological malignancies in Nigeria.
2
The two major
challenges in the management of MM in Nigeria are in the diagnosis
and treatment. The duo is majorly responsible for the complications,
poor prognosis and survival outcome of people living with MM in
Nigeria.
Method
This article highlights some of the diagnostic and therapeutic
challenges encountered by people living with multiple myeloma in
Nigeria. A systematic literature search was carried out in Google,
MEDLINE, PubMed, and the African Journals online (AJOL)
database, with the aim of identifying relevant challenges in the
diagnosis, staging, supportive and defnitive therapeutic management
of MM in Nigeria. The information was based on peer-reviewed
articles published before December, 2017.
Results and discussion
Aetiology, diagnosis and staging of MM in Nigeria
The aetiology of multiple myeloma is unknown. However,
Alexander (2007) experience as cited in Nwabuko et al.,
3
identifed
factors implicated as “potentially etiologic multiple myeloma risk
factors”. These factors include increasing age (>65years), male
gender, black race, positive family history of multiple myeloma
and the hypothesized precursors of multiple myeloma (i.e., Solitary
Multiple Myeloma). Based on recent study in Nigeria, Africa’s most
populous black nation, the median age of diagnosis of Multiple
myeloma was 59.9 years (45-78 years)
4
while the male to female ratio
was 2.3:1.
5
However, there is paucity of study on the hypothesized
precursors of multiple myeloma in Nigeria.
The diagnosis of multiple myeloma is based on a constellation
of hematologic, immunologic, histologic, and radiographic features.
A minimum of two major criteria, or one major criterion plus one
minor criterion, or three minor criteria is used in making diagnosis
of MM.
6
The major criteria are plasmacytoma on tissue biopsy, bone
marrow infltration with >30% BMPCs, monoclonal globulin spike on
serum electrophoresis while the minor criteria include bone marrow
infltration with 10-30% BMPCs, paraprotein less than the defned
quantity for major criteria and lytic bone lesion. The Table 1 below
shows the criteria for diagnosis of MM. According to Nwabuko et
al.,
4
“though primarily a disease of the bone marrow, it often poses
a diagnostic dilemma for the orthopedic surgeons because of the
frequent skeletal manifestations”. It is usually misdiagnosed as
an orthopedic disease when in the actual sense it is a hematologic
disease with orthopedic complications. At advanced stage, it causes
multiple lytic bone lesions with severe osteoporosis and pathological
fracture. A previous observational study has shown that about 84.6%
of newly diagnosed multiple myeloma patients in Nigeria present
with multiple bone lesions, and end up with the orthopedic doctors,
who may not suspect MM at the initial stage.
3
The key players of the
bone lesions in MM are cytokines namely IL-6 (Interleukin-6), TNF-
alpha (Tumor Necrosis factor), VEGF (Vascular Endothelial Growth
Hematol Transfus Int J. 2018;6(4):155‒157. 155
©2018 Nwabuko. This is an open access article distributed under the terms of the Creative Commons Attribution License, which
permits unrestricted use, distribution, and build upon your work non-commercially.
Multiple myeloma and the challenges of its
management in Nigeria
Volume 6 Issue 4 - 2018
Ogbonna Collins Nwabuko
1,2
1
Department of Hematology, Federal Medical Center, Nigeria
2
Department of Hematology, Abia State University, Nigeria
Correspondence: Ogbonna Collins Nwabuko, Department of
Hematology, FMC, Umuahia, Nigeria,
Email ogbollins2002@yahoo.com
Received: April 18, 2018 | Published: August 17, 2018
Abstract
Background: There is an increasing prevalence of Multiple Myeloma (MM) in Nigeria.
Unfortunately, there is a poor awareness of this hematological disease among the healthcare
providers and the targeted population in the country. The aim of this study is to highlight
some of the challenges encountered in the management of MM in Nigeria.
Methods: By systematic literature search of previous publications on the management of
MM in Nigeria using Google search engine, PubMed, MEDLINE, and the African Journal
Online (AJOL) database.
Result: The awareness of MM is still very poor among healthcare providers. Case
ascertainment is still a big issue due to diagnostic dilemma surrounding the disease. Most
cases are seen by orthopedic surgeons only to present to primary physician (Hematologist)
after complication must have set in. When diagnosis is made the defnitive and supportive
interventions are not readily available. The Hallmark is usually poor prognosis with a low
survival interval (≤5% survive beyond 5 years post diagnosis).
Conclusion: Late diagnosis coupled with poor health determinants such as low SES, poor
access to good health care, and lack of health-promoting policies that covers MM patients
are major contributors of poor health outcome of people living with MM in Nigeria.
There is a need to embark on a public health awareness campaign on MM in Nigeria. It is
recommended that the government should make early detection, and healthcare coverage of
people living with MM and other cancers topmost priority.
Keywords: multiple myeloma, management, challenges, nigeria, AJOL
Hematology & Transfusion International Journal
Research Article
Open Access