Saying goodbye — for the farewell that comes without warning

First, why this chapter sits near the front of the book.

This disease's goodbye can arrive without giving you time to prepare. A cat asleep in the window yesterday can be gone before dawn; or a decision can be demanded within minutes under the fluorescent lights of an emergency room. Such a farewell lands with entirely different weight on someone who has thought about it before and someone who has not. Placed at the back, this chapter would never be opened by the very people who need it.

If you do not need it now, skip it. But on the night it becomes necessary, may it not be the first time you read it.

1. This disease's goodbye takes three shapes

• ① The goodbye without warning — sudden death, when the heart's electrical signal scatters. It can come to a cat with no symptoms, and to a cat receiving excellent care (section 2)
• ② The decision in the emergency room — in the middle of a clot or acute failure, when the fork of treatment and the fork of parting are laid down at once (section 3)
• ③ The farewell with time — through the period when heart failure responds less and less to medication (stage D): a parting prepared for, and met (sections 4–7)

2. The goodbye without warning — if it came that way

This section is not about care technique. It is for those who have already lived it, or who fear it.

Sudden death is one of this disease's known faces. It happens when scarring in the muscle scatters the electrical signal — and sometimes the earliest sign and the only sign is that moment itself. Which means: it is not that there were symptoms you missed. There may have been no symptom to see.

Grief after a warningless goodbye is harder — the preparation stage was skipped entirely. It is normal for the guilt to be unusually large and long; section 8 is written for you.

3. The emergency-room decision — the only part you can think through in advance

• The information principle — exactly as in the clot article: the first day's appearance cannot predict the outcome (even research could not), time can be requested when pain is controlled, and the decision to let go can be equally right. Either way, what matters is that it is an informed decision
• The family agreement, made early — the hardest battle happens not with the hospital but within the family. Talk once, now, while it is easier: "if it comes to this, what will we choose?" Then no one person carries the whole weight at 3 a.m.
• The limit, decided in advance — thinking through the ceiling of cost and of treatment intensity partly separates money from love on that night. Setting a limit is not a smaller love; it is a device that keeps the decision focused on the cat
• The one-page summary — stage, medications, latest results (the vet article, section 5). The faster the emergency vet understands the cat, the more of the remaining time is spent at the cat's side

4. Putting a number on quality of life — the heart cat's scorecard

Once the farewell with time begins (stage D), the question "is she still okay?" repeats daily — and feelings swing day to day. Veterinary palliative care therefore uses a seven-item score (the HHHHHMM scale): each item 0–10 (10 = very good), read here through a heart cat's life.

Out of 70, above 35 is generally read as quality of life holding. Two things matter more than the number itself: score on the same day each week and watch the trend (41 → 38 → 33 speaks for itself), and when item ① collapses, read it heavily even if the total looks fine. Breathlessness is among the most distressing sensations there is, and cats endure it silently. Do not let "but she still eats" cover that signal.

5. Palliative care — the goal changes, the caring does not

• Dose the diuretic to quality of life — in this period the target is not a lab value but hours of comfortable breathing. For a chest that keeps refilling, the tap is the most reliable comfort tool — days of visible ease follow each one
• A medication diet — sort the drugs with your vet into "for prognosis" and "for comfort," and cut the ones that turn into daily battles. Six forced pills a day must not become what the remaining days are made of
• Lower the world — bowls, water and litter on the cat's floor; a low-entry box; a soft bed in the favourite spot. Saving steps is saving breath
• Multiply the joys — dietary rules relax now. Let her eat what she wants to eat. Sun, brushing, the lap — one item from her joy list every day
• A plan for the bad night — agree in advance with your vet: "in this state we come in / in this state we stay and comfort." It keeps the worst night from becoming chaos

6. How to decide

• When bad days outnumber good ones, and it does not turn back — the scorecard in section 4 helps you see it
• Is today's care making her comfortable, or postponing the parting? — there is a period when it is both; keep going then. A time comes when you feel only the latter remains
• The heart cat's own criterion — breath — when diuretics and taps can no longer buy more than a few days of comfortable breathing at a time, that signal outweighs every other. A day inside breathlessness is longer than a day

And do not decide alone. "If this were your cat, what would you do?" — many vets are waiting for that question. And with your family: the agreement of section 3, made before the day comes.

7. What actually happens on the day

Not knowing makes it more frightening. Knowing leaves room to simply be beside her.

1. A sedative comes first — a small injection under the skin or into muscle, and she drifts into a calm sleep. Consciousness is already gone at this step; she feels nothing that follows
2. Once deeply asleep, the medication is given — the heart quietly stops. The whole process usually takes a few minutes, without pain
3. Staying is a choice — some stay to the end; some stay through the sedation and step out. Neither is wrong. If you stay, know in advance that reflexes as the body relaxes (a breath, a tremor) are not pain

• Home euthanasia — transport stress is heavy for a heart cat, which makes the choice of the favourite spot at home especially meaningful. Find out in advance which services exist near you
• Aftercare options (individual cremation, keeping ashes) are far easier researched in advance than decided for the first time on the day

8. Afterwards

On guilt. Almost every caregiver meets it. The heart-cat versions run: "should I have counted more often?", "should we have gone in sooner?", "was it too early?", "was it too late?" If you have read this bible this far, you already know the answer. Learning and using this disease's tools of surveillance was itself the best protection that cat could have received.

If another cat remains. Searching, crying, refusing food — all normal. Many hold that letting them see the body helps; keeping the daily rhythm (meal times, play times) speeds recovery. If eating stays poor beyond two weeks, see a vet — stress can bring on hepatic lipidosis.

Grief keeps no timetable. This was a relationship of counted breaths and wrapped pills and watched chests. That loss is not small — and whatever anyone says, you are entitled to grieve it fully.

9. What to ask your vet

• "(Entering stage D) if we shift the goal from longer to comfortable, what do we remove and what do we add?"
• "How many hours of comfortable breathing a day do you think we are giving her now?"
• "I have been scoring quality of life — 41 to 33 in three weeks. How do you read that?"
• "When a hard night comes, is coming in better, or is there something we can do at home?"
• "Is home euthanasia available? If not, where should I look?"
• "If this were your cat — what would you do now?"

10. Related

• The clot (ATE) — the information principle for emergency decisions
• Heart failure — the road toward stage D, and the palliative tools
• The day of diagnosis — back to the beginning of this book
• The CKD bible: Farewell — if your cat's kidneys are ill too