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BMC Infectious Diseases logoLink to BMC Infectious Diseases
. 2016 Feb 1;16:41. doi: 10.1186/s12879-016-1359-8

Hepatitis B and C prevalence among hemodialysis patients in the West Bank hospitals, Palestine

Hamzeh Al Zabadi 1,, Hani Rahal 2, Rasha Fuqaha 2
PMCID: PMC4736137  PMID: 26830673

Abstract

Background

Hepatitis B and C virus infection is a lead cause of morbidity and mortality among hemodialysis patients. Yet, little research has focused on the morbidity measures of these serious disorders in low and middle income countries. The study aims to estimate the prevalence of hepatitis B and C among hemodialysis patients in the West Bank hospitals in Palestine.

Methods

A retrospective medical records review design was performed for all governmental and private hospitals in the West Bank which provide hemodialysis services for the patients. Data was retrieved from the patients’ medical files and from the computerized health information system in some hemodialysis centers. SPSS software version 16 was used for data entry and analysis.

Results

In overall, 868 hemodialysis patients attending nine hemodialysis hospitals in the West Bank was recruited. The overall prevalence of hepatitis B virus was found to be 3.8 % (33 cases) with a range from 0.0 % (in Jericho and Qalqelia districts) to 11.8 % (in Bethlehem district). Regarding hepatitis C virus, the overall prevalence was estimated around 7.4 % (64 cases) with a range from 2.9 % (in Nablus district) to 15.9 % (in Qalqelia district).

Conclusions

Although relatively low prevalence of both hepatitis B and C virus was found in a couple of hemodialysis hospitals, some higher prevalence values urge for the implementation of stricter infection prevention measures and more effective follow up procedures.

Keywords: Hemodialysis, Hepatitis B virus, Hepatitis C virus, West Bank, Palestine

Background

The primary purpose of the renal system is to maintain the body’s state of homeostasis by carefully regulating fluid and electrolytes, removing wastes, and providing other functions [1]. Dysfunction of the kidneys is common and may occur at any age and with varying degrees of severity [2]. Chronic kidney disease (CKD) is an umbrella term that describes kidney damage or a decrease in the glomerular filtration rate lasting for three or more months. CKD is associated with decreased quality of life, increased health care expenditures, and premature death [3]. Untreated CKD can result in end-stage kidney disease (ESKD), which is the final stage of renal failure [4]. ESKD results in retention of uremic waste products and the need for renal replacement therapies, dialysis, or kidney transplantation [2]. The cause of renal failure may be a primary kidney disorder or secondary to a systemic disease or other urologic defects. Hemodialysis is used for patients who are acutely ill and require short-term dialysis ranging from days to weeks until kidney resumes its function as well for patients with advanced CKD and ESKD who require long-term or permanent renal replacement therapy [2].

In hemodialysis, blood is removed from the patient with needles and plastic tubing and pumped past the dialysis membrane. Poisons and toxins cross the dialysis membrane into the dialysate, which is then discarded, and the blood is returned to the patient [5]. Viral hepatitis and human immunodeficiency virus infection are lead causes of mortality and morbidity in patients with hemodialysis (HD). Both are further promoted by the characteristic immunological dysfunction that develops in renal failure and interferes with the patient’s ability to eliminate these viruses. As far as HD is concerned, hepatitis B virus (HBV) and hepatitis C virus (HCV) are the two most important viruses responsible for almost all the patients’ morbidity [6]. Table 1 below shows some worldwide prevalence of HBV and HCV among HD patients [7, 8].

Table 1.

The worldwide prevalence of HBV and HCV among hemodialysis patients (The table was adopted from references 7 and 8)

Country Year HBVa HCVb
Total n° of patients Percent Total n° of patients Percent
Bahrain 2004 81 11.8 NAc NA
Belgian 2000 NA NA 1710 6.8
Brazil 2006 1095 29.8 NA NA
Brazil 2002 NA NA 795 16.5
Brazil 2001 NA NA 428 39
Germany 2002 NA NA 2796 6.1
Germany 1992 NA NA 122 3.3
Greece 2006 49 20.4 NA NA
Greece 2005 NA NA 366 24
India 2005 75 14.2 134 5.9
Indonesia 2002 NA NA 93 63.4
Indonesia 1996 NA NA 76 76.3
Iran 2005 324 4.6 NA NA
Iran 2003 NA NA 838 21.0
Israel 1999 NA NA 65 24.6
Jordan 2008 427 5.9 NA NA
Jordan 2002 NA NA 283 34.6
Kenya 2003 100 8 NA NA
Lebanon 1996 NA NA 317 27.0
Mexico 2004 NA NA 149 6.7
Morocco 2005 186 2 NA NA
Pakistan 2004 97 12.4 NA NA
Saudi Arabia 2001 67 10 NA NA
Spain 2005 86 20.9 NA NA
Switzerland 2000 1713 1.63 NA NA
Syria 1998 NA NA 120 75.0
Tunisia 2001 NA NA 4340 19.1
Turkey 2006 188 25 NA NA
USA 2001 252739 0.9 NA NA
Vietnam! 2013 113 7.0 113 6.0
Co-infection 1 %

a HBV hepatitis B virus, b HCV hepatitis C virus. c NA not applicable!

In Gaza strip in Palestine, a study found that the overall prevalence of HBV and HCV among the HD patients was 8.1 and 22 %; respectively [7]. However, no documented data is available regarding the West Bank. Therefore, this study aims to estimate the prevalence of HBV and HCV among HD patients in the West Bank of Palestine in the period from October to November 2014.

Methods

Study design, settings and population

A retrospective medical records review design was conducted. The study population included all patients who undergo HD in the West Bank including all governmental and nongovernmental (An-Najah National University Teaching Hospital) HD centers at the time of study.

Sample size

A total number of 868 patients were included in the study during the period from October to November 2014.

Ethical considerations

The study protocol was approved by An-Najah National University IRB (Institutional Review Board) committee. Permissions and approval to conduct the study were obtained from the Palestinian Ministry of Health for the governmental hospitals and from the executive manager of An-Najah National University Teaching Hospital. The data was collected from the medical records with permissions from the Ministry of Health for governmental units and the CEO of the private teaching hospital. No individual names or data are presented in this study. There was no direct contact with the patients. Data was retrieved from the patients’ medical files and from the computerized health information system in some HD centers.

Data collection

The HD centers included in the study were: Alia hospital (Hebron), Palestinian medical complex (Ramallah), Beit Jala hospital (Bethlehem), Dr. Thabit Thabit hospital (Tulkarm), Dr. Darweesh Nazzal hospital (Qalqelia), Dr. Khalil Sulaiman hospital (Jenin), Jericho hospital (Jericho), Al-Shaheed Yaser Arafat hospital (Salfeet) and An-Najah National University Teaching hospital (Nablus). The overall number of patients undergoing HD in each center was recorded and those who have HBV and HCV in each center were recorded as well.

The patients were included in the study only if they were attending HD center and undergoing HD on a regular schedule for more than one month. Patients who underwent HD for less than one month were excluded.

Statistical analysis

The data was collected, entered, summarized, tabulated and analyzed using the Statistical Package for Social Sciences (SPSS) software version 16 [9]. Descriptive statistics was performed on the collected data and on each center separately.

Results

This study focuses on determining the prevalence of both HBV and HCV among HD patients in the West Bank.

Patients’ distribution among hemodialysis centers

The study was conducted on 868 HD patients attending nine HD centers in the West Bank. Table 2 below shows the distribution of HD patients by center. The highest number of patients undergoing HD was seen in both Hebron and Nablus while the lowest was found in Jericho. As shown in the table, the highest number of patients with HBV was found in Beit Jala (11 cases) while for HCV, the highest number was found in Jenin (18 cases). However, Jericho and Qalqelia had the lowest (zero) number of HBV. Regarding HCV, the lowest number of patients was seen in Jericho (one case).

Table 2.

Patients distributions and numbers with HBV and HCV by hemodialysis centers in the West Bank

Hemodialysis center N° of patients n° with HBVa n° with HCV a
Hebron 177 9 13
Ramallah 135 4 5
Nablus 174 2 5
Beit Jala 93 11 8
Tulkarm 71 2 4
Qalqelia 44 0 7
Jenin 117 4 18
Jericho 25 0 1
Salfeet 32 1 3
Total 868 33 64

a HBV hepatitis B virus, HCV hepatitis C virus

Prevalence of HBV and HCV by hemodialysis centers

Figure 1 below shows the prevalence of both HBV and HCV in each HD center in the West Bank. The overall prevalence of HBV among HD patients in the West Bank was 3.8 % with a range from 0.0 % in Jericho and Qalqelia to 11.8 % in Bethlehem. Regarding HCV, the overall prevalence among HD patients in the West Bank was 7.4 % with a range from 2.9 % in Nablus to 15.9 % in Qalqelia (see Fig. 1 below).

Fig. 1.

Fig. 1

Prevalence of HBV and HCV by hemodialysis center in the West Bank. HBV: Hepatitis B virus; HCV: Hepatitis C virus

Discussion

The highest HBV prevalence in the West Bank was reported in Beit Jala governmental hospital (11.8 %). It is unclear why this high prevalence was reported compared to other West Bank hospitals. However, the result could be attributed to the fact that the hospital was established long time ago and that it provides health care services to different population groups. Moreover, the hospital has a regional referral Oncology department that serves the Palestinian population from South to the Middle of the West Bank and while cancer patients are immune-compromised, they may contribute to a higher level of HBV prevalence in this unit. Furthermore, this prevalence was higher compared to some other countries like USA, Morocco, Iran, but lower than other countries like Pakistan, Spain, Brazil, Turkey and Vietnam (Table 1) [7, 8].

On the other hand, the prevalence of HCV was 2.87 % at An-Najah National University Teaching Hospital in Nablus which was the lowest prevalence of HCV among hemodialysis centers in the West Bank. This prevalence was lower than other countries such as Belgian, Germany, India and Vietnam [7, 8]. This could be explained by that this hospital is a teaching hospital which was recently established and provides well and advanced tertiary services. Therefore, emphasis and attention on preventive measures compared to other hospitals might be more significant in this hospital. However, the prevalence of HCV was 15.90 and 15.38 % in Qalqelia and Jenin districts, respectively. These were the highest prevalences of HCV reported in the West Bank. Indeed, this high prevalence of HCV needs more investigations in order to better understand why the prevalence of HD patients with HCV is so high in these governmental hospitals. However, higher prevalence levels were reported in other countries worldwide such as Greece, Israel, Indonesia, Syria, Tunisia and Lebanon (Table 1).

In Arab countries, the prevalence of chronic HBV among HD patients ranged from 2.0 % in Morocco to 11.8 % in Bahrain [1012]. Moreover, the prevalence of HCV antibodies among HD patients has been reported to range from 27 % in Lebanon to 48.9 % in Syria [13]. In Jordan, the prevalence of HBV in seven hospitals of the Royal Medical Services was found to be 5.9 % out of the 427 studied subjects [12]. In Casablanca, Morocco a high HCV prevalence (76 %; N = 186) was reported compared to relatively small HBV prevalence (2 %; N = 186) among chronic hemodialysis patients in the university hospital [11]. In Egypt however, a cross-sectional study was conducted on 2977 individuals. The study determined the prevalence of anti-HCV and HBV surface antigen seropositivity in Damietta Governorate, Egypt. Only 1.1 % were infected with HBV and 9.3 % with HCV [14]. Regarding other parts of the world, in India for example, the prevalence of HBV and HCV were found to be 5.5 and 10.9 %, respectively after starting the HD [15]. Moreover, in spite of the reduction in HBV spread within dialysis centers (for example in our study, the prevalence of HBV in Jericho and Qalqelia governmental units was found to be zero in both districts), some isolated outbreaks of HBV infection continue to be reported among HD patients in developed countries [16].

This study has some limitations. It does not differentiate between patients who developed the hepatitis infection before or after starting the hemodialysis process, therefore, it does not investigate the risk factors of developing HBV and HCV. This would have provided an insight to understand the preventive measures in each hospital. However, this descriptive study could be used as a baseline for future hypothesis generating analytical studies. Furthermore, no other variables were taken into consideration when estimating the prevalence of HBV and HCV among hemodialysis patients such as gender, age, place of residence or other socio-demographic factors. Nevertheless, the study provides a general overview of this health event and urges further future investigations in low and middle income countries to shed the light to this life threatening disorders.

Recommendations

Further studies should be conducted to evaluate the risk factors of both HBV and HCV among patients undergoing hemodialysis in the West Bank hospitals. These include follow up studies to investigate whether the infection was established before or after starting the hemodialysis to form a more comprehensive opinion on why prevalence values are higher in some Palestinian hospitals compared to other national hospitals. Developing effective strategies to prevent the occurrence of HBV and HCV infections among HD patients is also essential. Investigation of the prevalence and risk factors of both HBV and HCV among hemodialysis patients in the East Jerusalem hospitals is recommended.

Conclusions

Although relatively low prevalence of both hepatitis B and C viruses was found in a couple of hemodialysis hospitals, some higher prevalence values urge for effective prevention control measures and more strict follow up procedures.

Acknowledgments

The Palestinian ministry of health and the hospital managers are acknowledged for their help, support and approval of the study. We also recognize the editorial contributions of Aida Al-Koni which improved our manuscript.

Abbreviations

CKD

chronic kidney disease

ESKD

end stage kidney disease

HBV

hepatitis B virus

HCV

hepatitis C virus

HD

hemodialysis

Footnotes

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

HA designed the study, conducted the data analysis and drafted the manuscript. HR and AF collected the data. All authors read and approved the final manuscript.

Contributor Information

Hamzeh Al Zabadi, Phone: +970-9-2342902, Email: halzabadi@gmail.com.

Hani Rahal, Email: hrahhal89@gmail.com.

Rasha Fuqaha, Email: rasha_love_2013@hotmail.com.

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