An Assessment of Cardiovascular Functional Capacity of a Group of Chronic Heart Failure Patients Using the 6-Minute Walk Test in a Cameroonian Urban Setting  

作　　者：Félicité Kamdem Chris Nadège Nganou-Gnindjio Dieudonné Danwe Franc Christ-Roi Soemessabot Elysée Claude Bika Léle Ba Hamadou Sidick Mouliom Lade Viché Henri Ngoté Caroline Kenmegne Marie Solange Ndom Ebongue Siddikatou Djibrilla William Ngatchou Félicité Kamdem;Chris Nadège Nganou-Gnindjio;Dieudonné Danwe;Franc Christ-Roi Soemessabot;Elysée Claude Bika Léle;Ba Hamadou;Sidick Mouliom;Lade Viché;Henri Ngoté;Caroline Kenmegne;Marie Solange Ndom Ebongue;Siddikatou Djibrilla;William Ngatchou(Department of Internal Medicine, Douala General Hospital, Douala, Cameroon;Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon;Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon;Faculty of Sciences, University of Douala, Douala, Cameroon;Faculty of Medicine and Biomedical Sciences, University of Garoua, Garoua, Cameroon;Faculty of Health Sciences, University of Buea, Cameroon)

机构地区：[1]Department of Internal Medicine, Douala General Hospital, Douala, Cameroon [2]Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon [3]Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon [4]Faculty of Sciences, University of Douala, Douala, Cameroon [5]Faculty of Medicine and Biomedical Sciences, University of Garoua, Garoua, Cameroon [6]Faculty of Health Sciences, University of Buea, Cameroon

出　　处：《World Journal of Cardiovascular Diseases》2023年第6期275-282,共8页心血管病（英文）

摘　　要：Background: Chronic heart failure is a public health problem worldwide. It has a high mortality rate and is accompanied by a decreased functional capacity and alteration of the quality of life. Objective: This study aimed to assess the cardiovascular functional capacity of a group of patients suffering from heart failure using the 6-minute walk test (6 MWT). Methods: This was a cross-sectional study carried out in the cardiology unit of Douala’s general hospital for 4 months. We included all eligible patients aged 18 years or more who had stable chronic heart failure and gave informed consent. Those who had an acute coronary syndrome (≤1 month), tachycardia (HR ≥ 120 bpm), high blood pressure (SBP ≥ 180 mmHg and/or DBP ≥ 100 mmHg) and reduced mobility due to orthopaedic reasons were excluded. A 6 MWT was done according to the American Thoracic Society guidelines. The 6 MWT result was considered poor for - 450 m and good for >450 m. Results: We recruited a total of 81 patients (61.7% women) with a mean age of 65.9 ± 10.6 years. The most frequent risk factor for heart failure was high blood pressure (77.8%), alcohol consumption(69.1%) and a sedentary lifestyle (53.1%). The left ventricular ejection fraction was mostly preserved (42.0%) or mildly altered (46.9). The 6 MWT results were poor in 55.6% of cases, average in 19.8% of cases and good in only 24.7% of cases. More than half (59.3%) of the participants perceived the effort as being difficult. The cardiovascular functional capacity was significantly associated with age, heart failure stage and physical activity (p Conclusion: Most patients suffering from chronic stable heart failure in the general hospital of Douala have poor cardiovascular functional capacity.Background: Chronic heart failure is a public health problem worldwide. It has a high mortality rate and is accompanied by a decreased functional capacity and alteration of the quality of life. Objective: This study aimed to assess the cardiovascular functional capacity of a group of patients suffering from heart failure using the 6-minute walk test (6 MWT). Methods: This was a cross-sectional study carried out in the cardiology unit of Douala’s general hospital for 4 months. We included all eligible patients aged 18 years or more who had stable chronic heart failure and gave informed consent. Those who had an acute coronary syndrome (≤1 month), tachycardia (HR ≥ 120 bpm), high blood pressure (SBP ≥ 180 mmHg and/or DBP ≥ 100 mmHg) and reduced mobility due to orthopaedic reasons were excluded. A 6 MWT was done according to the American Thoracic Society guidelines. The 6 MWT result was considered poor for - 450 m and good for >450 m. Results: We recruited a total of 81 patients (61.7% women) with a mean age of 65.9 ± 10.6 years. The most frequent risk factor for heart failure was high blood pressure (77.8%), alcohol consumption(69.1%) and a sedentary lifestyle (53.1%). The left ventricular ejection fraction was mostly preserved (42.0%) or mildly altered (46.9). The 6 MWT results were poor in 55.6% of cases, average in 19.8% of cases and good in only 24.7% of cases. More than half (59.3%) of the participants perceived the effort as being difficult. The cardiovascular functional capacity was significantly associated with age, heart failure stage and physical activity (p Conclusion: Most patients suffering from chronic stable heart failure in the general hospital of Douala have poor cardiovascular functional capacity.

关 键 词：Cardiovascular Functional Capacity Chronic Heart Failure 6-Minute Walk Test Cameroon 

分 类 号：X70[环境科学与工程—环境工程]