Cardiovascular Status of Patients after Chemotherapy for Haematological
Cancers in Jos Nigeria
Okeahialam BN
1*
, Muoneme SA
1
and Egesie OJ
2
1
Departments of Medicine, Jos University Teaching Hospital, Jos, Nigeria
2
Departments of Haematology, Jos University Teaching Hospital, Jos, Nigeria
*
Corresponding author: B. N. Okeahialam, Department of Medicine Jos University Teaching Hospital, Jos, Nigeria, Tel : +2348051499271; E-mail:
baskeam@yahoo.com
Received date: November 07, 2016, Accepted date: December 08, 2016, Published date: February 22, 2017
Copyright: © 2017 Okeahialam BN, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits
unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Heart disease can result from cancers and their treatment, heart failure being the case over time. This is however
not our local experience as hardly we find heart failure patients with a past history of cancer or chemotherapy. We
therefore decided to evaluate a cohort of patients on follow-up for haematological cancer therapy for cardiovascular
status with a view to defining their heart disease burden. Thirteen patients (6 F) with age range of 18 to 55 years on
follow-up for haematological cancers underwent cardiovascular examination and relevant data extracted from their
files. None of them was in heart failure after a range of 1 to 3 years of therapy. Most however received Prednisolone
as adjunctive treatment for their cancers namely: CLL, CML, ALL, AML and Hodgkin’s Lymphoma. The low rate of
heart disease in our cohort of haematological cancers was surprising. Whether it is due to genetics, environmental
factor or adjunctive treatment would require further studies to elucidate. Steroids being anti-inflammatory and anti-
fibrotic may be countering inflammatory and fibrotic cardiac damage that chemotherapeutic agents cause.
Keywords: Heart disease; Cancers; Drugs; Nigeria
Introduction
Te risk of malignancy is known to rise as the population ages [1].
Tough not common place, some of the cancers can involve the heart
[2]; as in hepato-cellular carcinoma [3]. Cancers can directly damage
the heart before any treatment [4]; but it is the therapy (chemo and
radio) that is more deleterious to cardiac function [5]. As more people
survive cancer treatment, a pool of people with cardiovascular
morbidity is developed; that will strain the health care system. Tis has
given rise to a new feld of integrative medicine (Cardio-Oncology/
Onco-Cardiology) between cardiologists and oncologists to manage
such cases [6].
Cardiac toxicity follows use of many chemotherapeutic agents, the
anthracycline group being the chief culprit; though others like
cyclophospahmide and fuorouracil are implicated [7]. It has been a
recognized entity for about 50 years following reports of heart failure
in children treated with doxorubicin [8]. Cardiotoxic efects of
chemotherapy range from mild transient blood pressure elevation and
electrocardiographic perturbations to signifcant arrhythmias,
myocarditis, pericarditis, myocardial infarction and cardiomyopathy
[7].
In our experience, not many patients presenting with heart failure
(HF) give a past history of cancer treatment. With the established fact
that systemic cancer treatment exerts a detrimental efect on the
cardiovascular system [9], our local experience became a matter of
curiosity. We, therefore, decided to clinically assess the cardiovascular
status of oncology patients who are on follow-up in the Haematology
out-patient clinic of our hospital. Tis was to ascertain their
cardiovascular disease burden; and if possible why heart failure
following cancer treatment is a rarity in our experience.
Methods
Between October and December 2011, all subjects on follow-up in
the Haematology Clinic of Jos University Teaching Hospital afer
chemotherapy for haematological cancers were assessed clinically; and
relevant information extracted from their records. Tis was with their
full consent and included: age, gender, age at frst dose, number of
doses till date, date of last dose, cumulative dose, drug(s) used, route of
administration, medical history before therapy, current medical
therapy, diagnosis of malignancy, any other treatment modality and
history of shortness of breath. Physical examination recorded pulse,
blood pressure, apex beat, heart sounds, postero-basal crepitations,
ascites and hepatomegaly. Any chest X-ray, electrocardiogram and
packed cell volume reports found were documented.
Results
Only 13 patients were on follow-up for cancer therapy on the
Haematology service at the time; 6 of whom were females. Teir ages
ranged from 18 to 55 years. Most (11/18) were in their frst year of
treatment.
Te remaining 2 were 2 years and 3 years into treatment. Number of
doses ranged from 1 to 8 and last dose from the point of encounter
varied from 1 to 88 weeks. Drugs used included Alkylating agents –
Cyclophosphamide, Chlorambucil and Decarbazine; Vinca Alkaloids –
Vincristine and Vinblastine; Anti-metabolites – Cytosine Arabinoside,
Hydroxyurea, Methotrexate; Anthracycline – Adriamycin; Antibiotic –
Bleomycin.
Route of administration was mostly parenteral (intra-venous) See
Table 1. Prior to chemotherapy, 2 patients had hypertension only, 1 in
addition to hypertension had diabetes mellitus and prostatism.
Okeahialam et al, J Cancer Clin Trials 2017, 2:1
Research Article Open Access
J Cancer Clin Trials, an open access journal Volume 2 • Issue 1 • 1000127
Journal of Cancer Clinical Trials
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