Transcript Acute oxalate nephropathy: interesting etiology - ISRTP
Case 4
Dr.Seethalekshmy N.V,
Dr.Smitha N.V, Dr.Hiran K.R, Dr.Bindhu M.R, Dr.Zuhara Shemin Dr.Annie Jojo, Dr. G.Bakul
*
, V.N. Unni
* Dept of Pathology, Dept of Nephrology*, Amrita institute of medical sciences, Kochi, Kerala
Case history
38 yr gentleman Routine health checkup – WNL except for hypercholesterolemia Vague abdominal discomfort, nausea, loss of appetite – 4 days later No fever / jaundice Bowel habits - normal Normal urine output
O/E – conscious, oriented BP – 130/82 mm of Hg Systemic exam – WNL
Investigations Blood routine – Normal LFT – normal S. Creatinine – 6.4mg/dl Urine routine – albumin – nil , sugar - nil no RBCs / casts, oxalate crystals++
Clinical diagnosis ACUTE RENAL FAILURE
2 sessions of dialysis
Left Percutaneous Kidney biopsy
Renal biopsy
H&E H&E
H&E x 400
H&E Von kossa
Under polarisation Immunofluorescence study
Negative for IgG, IgA, IgM, C3 , C1q , and both Kappa and lambda light chains EM- not done
Diagnosis Renal biopsy:
Acute oxalate nephropathy
Secondary Hyperoxaluria…. ???
On detailed evaluation
He had…………… Fresh concentrated “Irumban puli (Averrhoa bilimbi) ” juice
Approximately 50 fruits
In empty stomach
4 days ( For hypercholesterolemia )
Averrhoa bilimbi- literature
Bilimbi Irumban Puli Chemmeen Puli bimbul Fruit-bearing tree -Genus- Averrhoa -Family - Oxalidaceae.
Star fruit (A.carambola ) is another member of this family
Star fruit (Averrhoa carambola)
American Journal of Kidney Diseases,
Volume 57, Issue 4, April 2011, Pages A23-A25
“Oxalidaceae”-High levels of oxalic acid, extremely low pH (0.9-1.5).
The oxalate content of the “Irumban puli” fruit was estimated in our lab
Fruit
Cranberry Grape Tomato Pineapple Orange Apple Banana Irumban puli (A.Bilimbi
) Oxalate content (mg/100gm) 1.1
1.6
5.5
7.3
2.2
0.5
3.2
25.1
Follow up
Hemodialysis for 10 days Symptomatic improvement - 1 week
RFT improved
Follow up -S.Creat at 6 weeks is 1.2
We present
Retrospective study
24 patients
11 hospitals in the State of Kerala
Study period – 2010-2013
ARF after intake of Irumban puli fruit juice prior to onset of symptoms
Parameters analysed
Age , sex Symptoms, comorbidities BP USG- kidney, urine R/E Serum creatinine levels Quantity of fruit juice consumed Time for recovery Detailed histology Follow up
ANALYSIS
Age wise
AGE WISE DISTRIBUTION No.of patients
3 2 1 0 6 5 4 <20 21-30 31-40 41-50
AGE
51-60 60-70 >70
Co- morbidities
Comorbidities
10 8
No.of patients
6 4 2 0 DM HTN DLP
Comorbidity
Nil Series1
S. Creatinine
Range of Highest S. Creatinine
20 15
No.of Patients
10 5 0 <3 3_5
S. Creatinine
>5 No.of patients
No.of patients with hemodialysis and kidney biopsy 42% 58%
Yes no
KERALA
4 14 1 4 1
Distribution of cases
Results
All 15 patients on renal biopsy Acute oxalate nephropathy .
USG – normal Taken for
Hyperlipidemia, HTN 20 – 100 Nos 100 - 400ml /day Fresh concentrated juice or wine In empty stomach
Follow up
14 patients on Hemodialysis recovered. Creatinine normalized in 2-6 weeks.
1 expired due to cardiac event
8 patients who were managed conservatively - good response
Conclusions
Irumban Puli (Averrhoa bilimbi) , in excess quantities , can cause Acute oxalate nephropathy
With the experience gained ,we can adopt supportive management , in patients with this specific history, in the absence of other co-morbid conditions This is the first report of toxicity with A. bilimbi
Take home message
Any drug- Dosage is important
The use of alternative remedies are common
Consider it in the differential diagnosis of unexplained renal injury
Team work led to identification of cause
Indian Journal Of Nephrology ,July 2013/Vol 23/Issue 4
Acknowledgement
The Dept of Nephrology – Dr. Anil Mathew (AIMS Kochi), Dr. P.M. Jayaraj (Mother Hospital Thrissur), Dr. Kishore S Dharan (MOSC Medical College , Kolenchery), Dr. P.P. Jose (Lissie Hospital , Kochi), Dr. Jayakumar,Dept of Nephrology,(Govt.Medical College , Kottayam ) Dr. R. Rajesh (St. Gregorius Medical Misssion Hospital, Parumala ) Dr. Manju Thampi (NIMS , Trivandrum) .
Dr. Geetha M Nair ( PRS hospital, Trivandrum ) Dr. Arun C (Govt. Medical College, Trichur) Dr. Binu Upendran (Lourde’s Hospital, Kochi) Dr. Jacob George (Govt. Medical College, Trivandrum ) Dr .T.T Paul( West fort hospital ,Thrissur) Dr. Kasi Vishweswaran (Benziger hospital, Kollam) & Dr. Kannan Vaidyanathan, Dept of Biochemistry, AIMS for their whole hearted support for this study.
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