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LETTER TO EDITOR
Year : 2022  |  Volume : 32  |  Issue : 2  |  Page : 186-188
 

COVID-19 infection in CAPD patients: A single-center Indian experience


1 Department of Nephrology, Madras Medical Mission, Chennai, Tamil Nadu, India
2 Department of Nephrology, Christian Medical College, Vellore, Tamil Nadu, India
3 Department of Microbiology, Madras Medical Mission, Chennai, Tamil Nadu, India

Date of Submission14-Dec-2020
Date of Acceptance03-Aug-2021
Date of Web Publication05-Jan-2022

Correspondence Address:
Georgi Abraham
Nephrology, The Madras Medical Mission, Mogappair, Chennai - 600 004, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijn.IJN_522_20

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How to cite this article:
Parthasarathy R, David VG, Rohit A, Mathew M, Sabu S, Babu M, Abraham G. COVID-19 infection in CAPD patients: A single-center Indian experience. Indian J Nephrol 2022;32:186-8

How to cite this URL:
Parthasarathy R, David VG, Rohit A, Mathew M, Sabu S, Babu M, Abraham G. COVID-19 infection in CAPD patients: A single-center Indian experience. Indian J Nephrol [serial online] 2022 [cited 2022 May 16];32:186-8. Available from: https://www.indianjnephrol.org/text.asp?2022/32/2/186/335011


Sir,

With more than 8 million cases of COVID-19 (coronavirus disease 2019) infection in India, chronic kidney disease (CKD) patients form a vulnerable high-risk group. Among the CKD patients, COVID 19 prevalence is the highest in transplant recipients followed by maintenance hemodialysis patients and those who are on continuous ambulatory peritoneal dialysis (CAPD) and automated peritoneal dialysis (APD).[1] CAPD patients are trained to do the dialysis at home, therefore reducing the risk of COVID-19.[2] No data exist on home peritoneal dialysis (PD) and detection of SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) in the PD effluent in India. We present a single-center case series on the clinical characteristics and outcomes of chronic PD patients who developed COVID-19 infection in India.

This is a prospective, observational, case series of all CAPD who tested positive for COVID-19 infection between March 1, 2020, and October 31, 2020. The Ethical Committee clearance was obtained for chart review-based data collection. Nasopharyngeal swabs were sent to the laboratory for testing the E gene and Orf1a gene in a single reaction (Truenat Quattro, Molbio Diagnostics). The dialysis effluent collected in the 2-L drainage bag was sent to the laboratory for identification of COVID-19 by RT-PCR. The testing procedure was done from the dialysis effluent in 2-L bag after thorough mixing.

Five among the 56 prevalent CAPD patients developed COVID-19 (8.9%), and none of them died. None of the five patients had any augmented immunosuppressive state. The details of all patients are given in [Table 1]. [Figure 1] illustrates the HRCT (high-resolution computed tomography) chest and chest X-ray findings from two of these patients. PD effluent from all the patients was negative for SARS-CoV-2 by RT-PCR. The most recent patient who was a diabetic with heart failure and contracted COVID-19 was switched over temporarily to slow low-efficiency dialysis in another center and was kept on noninvasive ventilation, and she has recovered now. She needed one re-hospitalization.
Table 1: Characteristics of CAPD patients who developed COVID-19

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Figure 1: (a) Chest X-ray AP (anterior–posterior) view of Patient 2 showing right lower zone consolidation and changes of fluid overload. (b) HRCT (high-resolution computed tomography) chest of Patient 4 showing bilateral ground-glass opacities correlating with CORADS 6

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Like all patients with CKD, those on CAPD carry an increased risk of infection due to their immunosuppressed state and comorbid conditions.[3] Our cohort contained patients with a significant comorbidity profile, but none had malignancy or were on immunosuppressive medications. We have trained a number of patients for home PD during the study period. Despite the risk factors, they seemed to do fairly well. The hand washing techniques that are perfected by these patients and social distancing probably mitigated their risk at the peak of the pandemic. Although our patients had a history of fever, at presentation three of them only presented with signs suggestive of fluid overload, which suggests that a high degree of suspicion is needed to identify COVID-19 infection in CAPD.

Sachdeva et al.[4] reported that three out of 11 patients who developed culture-negative peritonitis and postulated that the direct effect of the virus, hematogenous spread, touch contamination, the effect of inflammatory mediators, and superimposed bacterial translocation were due to diarrhea as causative mechanisms. We did not have any PD-related peritonitis in our cohort. One of our patients did develop acute pancreatitis, which was managed conservatively while continuing PD.

Vischini et al.[5] previously reported peritoneal dialysate being positive for SARS-CoV-2 in a COVID-19 patient. However, to the contrary, Candellier and Goffin,[6] in a letter to the editor, reported three patients on PD in whom the virus was not detected in the PD fluid despite the high viral load on the initial nasopharyngeal specimen. This seems to be more in concordance with our findings as we did not detect the virus in any of the PD-effluent samples despite repeated testing.

We describe a small cohort of home PD patients who developed COVID-19 infection with no mortality. There was an absence of detection of the SARS-CoV-2 virus in the dialysis effluent.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

 
  References Top

1.
Brown EA, Perl J. Increasing peritoneal dialysis use in response to the COVID-19 pandemic: Will it go viral?. J Am Society Nephrol 2020;31:1928-30.  Back to cited text no. 1
    
2.
Jeloka T, Gupta A, Prasad N, Varughese S, Mahajan S, Nayak KS, et al. Peritoneal dialysis patients during COVID 19 pandemic. Indian J Nephrol 2020;30:171-3.  Back to cited text no. 2
  [Full text]  
3.
Richardson S, Hirsch JS, Narasimhan M, Crawford JM, McGinn T, Davidson KW, et al. Presenting characteristics, comorbidities, and outcomes among 5700 patients hospitalized with COVID-19 in the New York city area. JAMA 2020;323:2052-9.  Back to cited text no. 3
    
4.
Sachdeva M, Uppal NN, Hirsch JS, Ng JH, Malieckal D, Fishbane S, et al. COVID-19 in hospitalized patients on chronic peritoneal dialysis: A case series. Am J Nephrol 2020;51:669-74.  Back to cited text no. 4
    
5.
Vischini G, D'Alonzo S, Grandaliano G, D'Ascenzo FM. SARS-CoV-2 in the peritoneal waste in a patient treated with peritoneal dialysis. Kidney Int 2020;98:237-8.  Back to cited text no. 5
    
6.
Candellier A, Goffin É. Letter regarding “SARS-CoV-2 in the peritoneal waste in a patient treated with peritoneal dialysis”. Kidney Int 2020;98:512. doi: 10.1016/j.kint.2020.05.034.  Back to cited text no. 6
    


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