A Burmilla's 3 main problems fit into 1 annual visit of about 45 minutes, once the first year is done. Those problems are polycystic kidney disease, progressive retinal atrophy and hypertrophic cardiomyopathy, and each has its own first useful age: a DNA swab at 8 weeks, a kidney ultrasound at 10 months, an echocardiogram at 12 months. Persian and Burmese ancestry is why both the cyst gene and the retinal question apply. Breed-specific rates are limited, so the evidence is thin and everything below is protocol.
One visit, 45 minutes, in this order
The order is dictated by what has to be done before the cat is stressed. Minutes 0 to 10: weight, body condition score, blood pressure, and a history of water intake and litter volume. Minutes 10 to 20: fundic exam under tropicamide drops, which take 15 to 20 minutes to work, so put the drops in at minute 5 and read the retina while the cat is calm. Minutes 20 to 35: echocardiogram, unsedated, left lateral, 3 views. Minutes 35 to 45: urine by cystocentesis for specific gravity and protein to creatinine ratio. Booking it as 1 appointment rather than 3 saves 2 car trips and roughly 1 hour of a cat's stress budget.
PKD: scan at 10 months, swab at 8 weeks
Polycystic kidney disease is dominant, so 1 copy is enough. The PKD1 swab at 8 weeks answers the genetics, but it does not replace imaging, because a cat can carry a variant the panel does not cover, and because cysts need to be measured. Ultrasound at 10 months, when cysts of 2 mm and up read clearly; a clean scan at 7 months is not evidence. From age 3, add urine specific gravity, below 1.035 on free water being the flag, SDMA above 14 µg/dL, and creatinine 1.6 to 2.5 mg/dL. A cat with a negative swab and 2 clean scans at 10 and 22 months can stop imaging and move to annual urine only.
PRA: the swab that ends the question early
Progressive retinal atrophy in this lineage is inherited and untreatable, and the panel sold for Burmese-derived cats covers the variant usually cited. Swab at 8 weeks, before the first vaccination, and keep the result in the record. A clear cat still gets a fundic exam at 12 months and then every 12, because retinal changes also come from blood pressure and from other disease. What the owner notices first is not blindness but a cat that stops following a toy in dim light, then walks with its whiskers brushing walls after dark.
HCM: the number that changes the interval
Hypertrophic cardiomyopathy is the one finding that alters the calendar rather than confirming it. Wall thickness at end-diastole: 6.0 mm or more is diagnostic territory, 5.5 to 5.9 mm moves the next echo to 6 months, and under 5.5 mm keeps the 12 month rhythm. Left atrium to aorta ratio at 1.5 or above means a 6 month interval and a discussion about clopidogrel, a platelet inhibitor available only by veterinary prescription. A sleeping respiratory rate above 30 per minute on 3 consecutive days at home is enough to move the echo to within 72 hours, with no other sign needed.
What the annual visit contains
| Minutes | Test | Number that matters | USD |
|---|---|---|---|
| 0 to 10 | Weight, blood pressure | systolic 160, weight 5 percent | 30 to 60 |
| 10 to 20 | Fundic exam | vessel grade 1 to 4 | 80 to 180 |
| 20 to 35 | Echocardiogram | wall 6.0 mm, ratio 1.5 | 250 to 500 |
| 35 to 45 | Urine, USG, ratio | 1.035, 0.4, UPC | 45 to 120 |
| extra 10 | Kidney ultrasound, age 10 months | cyst 2 mm | 120 to 250 |
Four signals you can read at home
- Water bowl maths. Measure what you pour for 3 days and divide by 3; over 60 ml per kg per day, 270 ml for a 4.5 kg cat, is a urine test within 7 days.
- Toy tracking in dim light. A cat that catches a wand toy at noon and loses it at 9 pm is showing early rod loss; test twice a week at the same hour.
- Sleeping respiratory rate. 30 seconds while asleep, doubled, 4 times a week. Three readings above 30 per minute in a week is a 72 hour echo.
- Weight and appetite. A 5 percent drop in 8 weeks, or a cat that eats but thins along the spine, means bloodwork within 14 days.
Emergency thresholds, in hours
| Sign | Threshold | Vet within | Concern |
|---|---|---|---|
| Open-mouth breathing at rest | 1 min or longer | 0 hours, now | heart failure |
| Sleeping rate | over 40 per min | 1 hour | pulmonary edema |
| Hind legs cold, dragging | 5 min from onset | 2 hours | aortic thromboembolism |
| No urine, straining | 12 hours | 3 hours | urethral obstruction |
| Sudden blindness, both eyes | 24 hours from onset | 12 hours | detachment, hypertension |
| Not eating 2 days | 48 hours | 24 hours | kidney, liver, pain |
What the visit costs, in 2 currencies
| Item | USD | CNY | Cadence |
|---|---|---|---|
| PKD1 swab | 60 to 120 | 430 to 870 | once |
| PRA panel | 60 to 120 | 430 to 870 | once |
| Kidney ultrasound | 120 to 250 | 500 to 1,100 | 10 and 22 months |
| Fundic exam | 80 to 180 | 400 to 950 | 12 months |
| Echocardiogram | 250 to 500 | 1,200 to 2,600 | 12 months |
| Urine, USG, ratio | 45 to 120 | 200 to 570 | 12 months |
| Bundled annual visit | 420 to 780 | 2,000 to 3,900 | 12 months |
CNY figures reflect mainland clinic pricing rather than a 7.2 conversion, and bundling is where the saving lives: 3 separate appointments usually add 90 to 150 dollars of consult fees, which the single visit avoids. Year 1 costs 600 to 1,100 dollars; years 2 onward, 420 to 780.
Where owners overspend
Four purchases are common and rarely useful. Repeat kidney scans every 6 months in a DNA-negative cat with 2 clean images: stop. Whole-body radiography as a screen: a chest film is justified once only when no echocardiogram is available, and it cannot measure a wall. Annual full chemistry panels in a 2 year old with a normal urine: the urine and the echo carry the information. And supplements marketed for heart or kidney support: none replaces the 12 month echo or the protein ratio, and several are unpriced placebos at 30 to 80 dollars a month.
The first 24 months, in order
- Week 8: PKD1 and PRA swabs in 1 appointment, results in 10 to 14 days.
- Month 10: kidney ultrasound plus a baseline urine; ask for the cyst measurement in millimetres.
- Month 12: the 45 minute bundle, with the echo report stating wall thickness and ratio.
- Month 22: second kidney scan, then decide whether imaging stops.
- Month 24 onward: 1 bundled visit a year, plus a monthly weight and a weekly breath count at home.
The single largest avoidable cost in this breed is an echo done late, after a cat has been breathing at 40 per minute for a week, because the emergency bill for 1 night of oxygen and diuresis runs 800 to 2,000 dollars and buys nothing the 250 to 500 dollar scan would not have caught. For how the same bundle looks where the kidney is not the driver, read the Turkish Van screen and the Tonkinese screen; if the cat's parentage is a guess, start with the breed quiz.
Terms mentioned in this article
Frequently asked
Can all 3 tests really be done in one visit?
Yes, if you warn the clinic when booking. Drops need 15 to 20 minutes to dilate the pupil, so they go in first, then the echo runs while you wait, then urine by cystocentesis at the end. Booking 3 separate appointments adds 90 to 150 dollars in consult fees and 2 extra car trips for the cat.
Is the PKD1 swab enough without an ultrasound?
No. The swab covers the common variant, and a negative result is useful, but panels do not cover every possible change and cysts still need measuring over time. The compromise is a 10 month scan plus a 22 month scan, after which a negative cat with 2 clean images can stop imaging.
How often does the heart need checking after a normal echo?
Every 12 months, because hypertrophic cardiomyopathy can develop later and a single normal scan describes 1 day. If the wall measures 5.5 to 5.9 mm, the interval drops to 6 months, and a left atrium to aorta ratio at 1.5 or above also shortens it while adding a conversation about antiplatelet treatment.