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Safe anesthesia in the dog - why good surveillance is so important

Anesthesia or sedation is sometimes inevitable - be it for surgery, dental renovation or even more complex examinations. It can be queasy, especially when you hear that the anesthesia carries risks. The good news: thanks to modern veterinary medicine and careful surveillance, many of these risks can be controlled very well today.


What happens with anesthesia?

Anesthesia is an artificial deep sleep. The dog's body is "shut down" - heart, circulation and breathing slow down. These changes must be observed very closely so that everything goes safely.


Why is surveillance so important?

During anesthesia, blood pressure, heartbeat or breathing can get out of balance. This is exactly where surveillance comes into play. Veterinary: Inside and their teams use modern technology and experience to see at any time:

  • How fast does the heart beat?
  • Does the dog get enough oxygen?
  • Is the blood pressure stable?
  • Does he breathe regularly and sufficiently deep?

If something gets out of hand, it can be intervened immediately - before it becomes critical.


In which phases is monitored?

🩺 1. In front of anesthesia (pre -anesthetic):

Before it even starts, the dog is thoroughly examined. If necessary, blood is also removed. Goal: Correctly assess the risk of anesthesia. For example: is the heart healthy? Is there a previous illness? How fit is the dog in general?

Good to know: the older or a little an animal, the more careful you have to plan.


🛌 2. During anesthesia (anesthetic):

Now the dog is sleeping deeply - but that doesn't mean nothing more happening. On the contrary! Now it is monitored particularly closely:

  • Heartbeat and rhythm are controlled with an EKG.
  • A small device measures how much oxygen is in the blood.
  • It is seen whether the dog breathes properly.
  • The blood pressure is checked regularly.
  • The body temperature is also observed.

Important: There is always someone who takes care of it very well - often even a specially trained specialist.


💗 3. After anesthesia (postoperative):

Waking up is also a critical phase. Some complications only occur now - for example, breathing problems or circulatory weakness. Therefore, the dog is monitored until it is really awake and stable again.

You also pay attention to it:

  • whether he breathes normally,
  • whether the circulation is back in the solder,
  • whether he is in pain
  • And whether he freezes (which often happens after anesthesia).

What can animal owners do: do inside?

  • Ask questions: Good veterinarian: Inside, please explain how to plan and monitor anesthesia.
  • Give anamnesis: indicate all known previous illnesses or medication of your dog.
  • Building trust: A good practice relies on modern technology, trained staff and clear processes - that gives security.

Intermediate conclusion: good surveillance = more security

Anesthesia is much safer today than before - especially because it is very careful throughout the entire time. The right preparation, modern surveillance devices and experienced specialists ensure that your dog is also best protected as possible during a medical intervention.

If you feel unsafe: ask calmly! An open conversation with her veterinarian creates trust and gives you a good feeling - for you and your four -legged darling.

Now we are partly for the veterinarians among you: risk factors for mortality in general anesthesia and sedation in dogs

Inspired by author: Natalie Chow, DVM, Dacvaa, Lakeshore Animal Health Partners, Mississauga, Ontario, Canada


safe anesthesia in the dog
Safe anesthesia in dog 2

In the specialist literature

Shoop-Worrall SJW, O'Neill DG, Viscasillas J, Brodbelt DC. Mortality in connection with general anesthesia and sedation among dogs in primary veterinary care in the United Kingdom. Vet anaesth anal. 2022; 49 (5): 433–442. DOI: 10.1016/J.VAA.2022.03.006


The research…

All procedures that require general anesthesia or sedation provide a risk of associated deaths. In humans, this risk is extremely low (about 0.003 %), with the most common causes overdose of anesthetics and undesirable effects.¹ ² Risk factors include higher ASA status (American Society of Anesthesiologists), poor physical condition and the need for emergency operation.³

In animals, the risk of anesthetia -related deaths is higher. In a large prospective study, the average risk of deaths caused by anesthesia or sedation in dogs was 0.17 % (range: 0.05 % to 1.33 %, depending on the state of health). Risk factors were geriatric age, higher ASA status, illness and weakness as well as emergency operations.

This case control study estimated the risk and certain risk factors for deaths in connection with anesthesia and sedation in dogs-both for all procedures and especially for castration/sterilization procedures-in veterinary practices in the United Kingdom. An electronic patient database was used to identify dogs (n = 157,318) that had received general anesthesia or sedation at least once within three years.

A death caused by anesthesia or sedation was defined as death within 48 hours or 2 weeks after the procedure, in which an influence of the anesthetic could not be excluded. The overall risk for such a death was 0.10 % within 48 hours and 0.14 % within 2 weeks. In the case of castration -specific interventions, the risk was 0.006 % within 48 hours and 0.009 % within 2 weeks.

Most dogs died during the anesthetic conservation phase, followed by the postoperative recovery phase. The most common cause of death was euthanasia due to a deterioration in health, followed by cardiorespiratory failure and unknown cause. The risk factors included geriatric age, Dolichocephale races (long-skiing dogs), higher ASA status, emergency operations and dental treatments. Certain breeds (e.g. West Highland White Terrier, German Shepherd Dogs, Rottweiler) showed an increased risk, while Cocker Spaniel had a reduced risk.

The study results show that mortality from anesthesia or sedation in animal patients has decreased as a whole - probably due to better surveillance and increased awareness - the risk is still increased compared to human medicine. Reasons for this could be differences in the anesthesia standards, clinical processes, the level of training of the staff, available equipment and communication with the patients. The risk factors have remained largely the same, with the additional knowledge that certain dog breeds can have an increased or reduced risk.

Cardio and respiratory failure remains a common cause of death, which underlines the importance of adequate surveillance and ensuring a free airway during and after anesthesia. A close monitoring during sedation, anesthesia and recovery phase is crucial to minimize risks and complications.


... the knowledge

Important points for practice:

  • The overall risk of deaths in dogs caused by anesthesia and sedation has decreased over time.
  • Factors that increase the risk are: geriatric age, higher ASA status, breed and emergency operations.
  • Adequate cardiovascular and respiratory monitoring should be carried out in pre -anesthetic, anesthetic and postoperative phase.

Why is surveillance so crucial?

During sedation or general anesthesia, the animal's body goes through a variety of physiological changes. Cardiovascular system (cardiovascular) and respiratory system (respiratory) are particularly susceptible to undesirable effects of anesthetics-including drop in blood pressure, heart rate changes, respiratory depression and lack of oxygen. Continuous and careful surveillance allows the treating team to react to critical changes at an early stage and to prevent potentially life -threatening complications.


1. Presesthetic phase: preparation is everything

In this phase, the patient is carefully examined and prepared for anesthesia. The aim is to record the individual risk and adapt the anesthesia plan accordingly.

Important measures:

  • Clinical examination: heart and lung noises, mucosal color, pulse quality.
  • Blood pressure measurement: early detection of hypotension or hypertension.
  • EKG (electrocardiogram): screening on cardiac arrhythmias.
  • Blood testing: control of organ functions (e.g. liver, kidney, electrolyte).
  • Oxygen saturation (SPO₂): Reference value for later comparison.

The aim of this phase:

Optimizing the physical condition before anesthesia, e.g. B. by fluid therapy or stabilization of cardiovascular diseases.


2. Anesthetic phase: the heart of surveillance

As soon as the animal has been mixed in anesthesia, physiology changes fundamentally. Here the seamless monitoring of the heart and lungs is essential - mostly every minute.

Monitoring parameters:

Cardiovascular:

  • Heart rate and rhythm: EKG shows arrhythmias, bradycardia or tachycardia.
  • Blood pressure:
    • Non-invasive (e.g. Doppler or oscillometric)
    • Invasive (e.g. arterial catheter) in critical patients
  • Capillary refill time (CRT) & mucous membrane: Notes on circulation and circulatory status

Respiratory:

  • Breathing frequency and depth: manual observation and ventilation monitoring
  • Capnography (ETCO₂): Measures the CO₂ content of the exhaled air-important for ventilation control
  • Pulsoximetry (spo own): provides information about oxygen saturation of the blood
  • Excultation of the lungs: Recognize breathing noises or ventilation problems

Additionally important:

  • Temperature monitoring: Hypothermia is often with longer interventions.
  • Liquid therapy: supports blood pressure and blood circulation.
  • Emergency equipment at hand: for resuscitation or medication for circulatory arrest.

3. Postoperative phase: The critical awakening

Many complications do not occur during , but after anesthesia - especially in the wake -up phase when protective reflexes are still reduced and the patient is often unattended. Careful follow -up care is therefore also decisive.

Monitoring in this phase:

Cardiovascular:

  • Regular control of heart rate, mucous membrane color, blood pressure
  • EKG control for pre-existing rhythm disorders

Respiratory:

  • Ensuring free airways (e.g. by late intubation, if necessary)
  • Observation of the respiratory rate and depth
  • Pulsoximetry for early detection of hypoxia
  • Control on aspiration, cough or stridor (reference to respiratory complications)

Further measures:

  • Heat management: heat supply through heating mats or warm air devices
  • Pain monitoring and therapy: Pain can cause stress and circulatory problems
  • Storage and support: side storage if vomiting occurs; Access to oxygen if necessary

Conclusion: a continuous process for more security

The monitoring of cardiovascular and breathing begins long before the first anesthetist and does not end with the last breath after the operation . It is a continuous, dynamic process that is individually tailored to the patient.

Modern surveillance techniques, trained staff and structured processes are the key to reducing anesthesia -related risks - and to secure our animal patients safely through the entire procedure.

Frequent questions about safe anesthesia in the dog

Is anesthesia dangerous for my dog?

🐾 Answer for laypersons:
Every anesthetic carries a certain risk - this applies to people as well as to animals. The good news is: In modern veterinary medicine, these risks have become much lower. Thanks to thorough preparation, modern devices and trained staff, most complications can be recognized and prevented at an early stage. A good preliminary examination is particularly important in which z. B. heart, lungs and blood values ​​are checked. In the case of older or chronically ill dogs, it is particularly carefully planned. Your dog is also closely monitored throughout anesthesia and when waking up - so that he will surely return to you.
👩‍⚕️ Answer for veterinarians: Inside:
According to current studies (e.g. Brodbelt et al., Shop-Worrall et al.), The Letterity rate for dogs under general anesthesia is in the range of 0.05–0.17 %, whereby ASA status, age, emergency indications and specific racial exposure are considered the main risk factors. Precise pre-anesthetic evaluation (including blood count, possibly thorax X-ray and echocardiography) in combination with an individually adapted anesthesia protocol and intraoperative surveillance (EKG, SPO₂, ETCO₂, blood pressure) significantly reduces the risk. The quality of postoperative care also significantly influences mortality.

Why is my dog ​​monitored so intensely during anesthesia?

?
🐾 Answer for laypersons:
During anesthesia, the dog sleeps deeply and does not notice anything - but his body functions, especially breathing and circulation, change significantly. It can z. B. to low blood pressure, breathing problems or irregular heartbeat. In order for something like this to be recognized early, the veterinarian monitor the most important vital values ​​inside with the help of devices - very similar to people in the hospital. So you can intervene in good time if something gets out of balance. This monitoring saves life and makes anesthesia much safer.
👩‍⚕️ Answer for veterinarians: Inside:
Continuous surveillance is essential to keep hemodynamic and respiratory parameters stable. Standardized monitoring methods (ASA, AAHA or WSAVA recommendations) include the collection of heart rate, EKG, SPO₂, ETCO₂, invasive or non-invasive blood pressure, respiratory rate and body temperature. Especially with high -risk patients (e.g. geriatric animals, ASA III - V), trends of these parameters are crucial for early detection z. B. of hypotension, hypoxia or hypercapnia. The perioperative course improves significantly when using multimodal monitoring.

What does ASA status mean in my dog?

?
🐾 Answer for laypersons:
The ASA status is a kind of classification system with which veterinarian: on the inside, evaluate the risk of anesthesia of your dog. It is seen how healthy your animal is - from ASA I (healthy) to ASA V (seriously ill). This assessment helps to plan anesthesia well and better assess possible risks. An older dog with heart problems z. B. a higher ASA status than a young, fitter dog. But don't worry: Safe anesthesia is also possible with higher ASA status-with the right precautions and good surveillance.
👩‍⚕️ Answer for veterinarians: Inside:
The division according to ASA (American Society of Anesthesiologists) serves to take the risk and support the selection of suitable anesthesia protocols. The classification ranges from ASA I (clinically healthy) to ASA V (Moribund patient, no chance of survival without intervention). It demonstrably correlates with the mortality rate under anesthesia (brodblel et al.), With the transitions being subjective. ASA status, among other things, influences the choice of premium cheman, the type of ventilation, the scope of monitoring and postoperative support.

How does surveillance work when waking up?

?
🐾 Answer for laypersons:
After the operation, your dog wakes up again in a calm and safe environment. The veterinarian team stays nearby and observes very carefully whether your dog breathes normally, moves, is accessible and whether there are complications. Especially in this phase it can z. B. to breath shortness of breath, circulatory weakness or vomiting - therefore a close -meshed control is very important. Your dog stays under observation until he can be safe, swallow and breathe independently.
👩‍⚕️ Answer for veterinarians: Inside:
The postoperative surveillance phase carries a high risk of respiratory complications (e.g. hypoventilation, obstructions) and circulatory instabilities. Important parameters: respiratory pattern, spo own, heart rate, RR, temperature and responsiveness. Inhalation narcotics such as isofluran or Sevofluran can cause post -narcotic hypotension and bradycardia. In addition, the pain assessment (e.g. Glasgow Pain Scale) is an integral part of aftercare. Patients with increased risk should only be extended if protective reflexes have returned completely.

Do I have to worry more about old or sick dogs?

?
🐾 Answer for laypersons:
Older or sick dogs generally have a slightly higher risk of anesthesia because your body is no longer so resilient. But that does not mean that anesthesia is not possible - it only has to be planned more carefully. Your dog is thoroughly examined before anesthesia, and if necessary, the anesthesia protocol is adjusted, e.g. B. with gentler drugs and more intensive surveillance. Many older dogs can easily survive interventions if they are well prepared and professionally looked after.
👩‍⚕️ Answer for veterinarians: Inside:
geriatric or systemically ill animals (e.g. with cardiac, renal or endocrine comorbidity) are considered ASA III or higher and require specific risk evaluation. Age-associated changes in pharmacokinetics/dynamics require dose-adapted narcotics (e.g. etomidate, remi-tanil), complete monitoring and individualized fluid and temperature management concepts. The perioperative forecast improves through early stabilization (e.g. Ow gift, drug support, stress minimization).

:


🧐 Why should you ask for more favorable surgery offers

Operations in the animal cost money - this is understandably uncomfortable. If you see a particularly cheap offer, it initially has tempting. But caution is advised here: the amount of the price depends largely on which anesthetic process is used . Some college: In the case of simple interventions (e.g. castrations), only work with injection anesthesia without intubation and monitoring - this saves time, personnel and technology, but is at the expense of security .
A modern standard is intubation anesthesia with inhalation anesthesia and complete monitoring of the heart, circulation and breathing. This effort is higher, but it significantly minimizes the risks for the animal - especially in older or sensitive patients.

ask : In the case of very cheap surgery offers , whether e.g. For example, it is intubated how monitored (e.g. EKG, oxygen saturation), and whether an experienced anesthetist or trained staff looks after anesthesia.


📊 Comparison table: anesthetic costs compared - basic services

PerformanceInjection anesthesia (simple)Intubation anesthesia with monitoring
Sedativa/Premedication✓ approx. 15 €✓ approx. 15 €
Anesthetic medication (injection)✓ approx. 30 €(only for the introduction) approx. € 20
Intubation (including disposable material)✗ not included✓ approx. 15–20 €
Inhalation device + isofluran/Sevofluran✗ not used✓ approx. 30–50 €
Monitoring (EKG, SPO₂, capnography, temp.)✗ not included✓ approx. 25–35 €
Personnel for surveillance✗ minimal✓ Additional specialist planned
Heat management (e.g. heating mat, blankets)✗ rare✓ Standard in high -quality practice
Total costs for anesthesia regimeapprox. 45–60 €approx. 100–150 €

Note: The prices are rough guidelines and can vary depending on the region, practical structure and material costs.


Follow for pet owners: inside:

Safe anesthesia with good surveillance is an investment in health and life of your animal. If an operation appears unusually cheap, you should not only look at the "what", but also at the "how". Quality has its price - but also a high value.

If you want, I can also design a practical information sheet for consultations !

Summary: Everything important about safe anesthesia in the dog

Safe anesthesia in the dog is a central topic in modern veterinary medicine - and a decisive factor for successful operation or treatment. Whether with routine interventions such as castrations or with complex surgical measures: safe anesthesia in the dog protects the animal, reduces risks and creates trust between veterinary practice and pet owners: in.

As part of our detailed consideration, it became clear that the safe anesthesia in the dog consists of several phases: the pre -anesthetic examination, actual anesthesia and postoperative surveillance. In each of these phases, a well thought -out, individually adapted procedure contributes to the safe anesthesia in the dog .

🔬 pre -anesthetic phase

This already begins with safe anesthesia in the dog -with a careful health check, blood value analysis and assessment of the anesthetic about the ASA status. This basis allows the treating team to choose a suitable strategy and minimize risks in advance. Safe anesthesia in the dog is never carried out "according to scheme f", but is based on the individual state of the patient.

💉 anesthesia phase

During anesthesia, breathing, circulation, temperature and reflexes are closely monitored - that is the heart of safe anesthesia in the dog ( further information, etc. ). Modern devices such as ECG, pulseximeters, capnograph and blood pressure measurement are part of the standard equipment. This tight -meshed control makes the difference, especially in older or sick animals. Intubation is an essential part of the safe anesthesia in the dog because it enables respiratory safety and inhalation anesthesia.

🌡️ Postoperative phase

Even after the procedure, the safe anesthesia not end in the dog. Rather, careful waking up is a critical moment in which veterinarian: further monitor inside and specialist staff: breathing, circulation, temperature and reaction. Pain management, heat supply and personal care also secure safe anesthesia in the dog .

💸 Price & quality

The pricing was a central topic. The safe anesthesia in the dog is more cost -intensive than simple injection anesthesia without surveillance. But the investment is worth it: it means the greatest possible security, better recovery and minimized complications. Pet owners: In the case of very favorable surgical offers, it should therefore be critical of which anesthesia procedures are used-because safe anesthesia in the dog requires more than just a syringe.

👨‍⚕️ Responsibility & Enlightenment

For veterinarians: Inside, it is important to make safe anesthesia in the dog Founded education, supportive information materials and open communication about risks, technology and surveillance strengthen trust. At the same time, they show that the safe anesthesia in the dog is a quality feature of modern veterinary care.


💡 Conclusion: 27 good reasons for safe anesthesia in the dog

  1. Because they minimize risks.
  2. Because it is individually adjusted.
  3. Because it is based on modern technology.
  4. Because it is accompanied by specialist staff.
  5. Because she saves life through surveillance.
  6. Because it protects when you wake up.
  7. Because she makes painless.
  8. Because it is professionally planned.
  9. Because she has the heart and circulation in view.
  10. Because it prevents breathing problems.
  11. Because it is also safe in old animals.
  12. Because she creates trust.
  13. Because it is part of modern veterinary medicine.
  14. Because it shows responsibility.
  15. Because it is supported by specialist knowledge.
  16. Because it helps in emergencies.
  17. Because it sets high standards.
  18. Because it is evidence -based.
  19. Because it is not improvised.
  20. Because it consists of several phases.
  21. Because it protects the animal's well -being.
  22. Because it is also important for routine interventions.
  23. Because it combines hygiene and security.
  24. Because it scores through good preparation.
  25. Because it makes the difference.
  26. Because she can save animal life.
  27. And because your animal deserves it: the safe anesthesia in the dog .

Sources:

  1. Bainbridge D, Martin J, Arango M, Cheng D; Evidence-Based Peri-Operative Clinical Outcomes Research (Epicor) Group. Perioperative and anesthetic-related Mortality in Developed and Developing Countries: A Systematic Review and Meta-Analysis. Lancet . 2012; 380 (9847): 1075-1081. DOI: 10.1016/S0140-6736 (12) 60990-8
  2. Li G, Warner M, Lang BH, Huang L, Sun ls. Epidemiology of Anesthesia-Related Mortality in the United States, 1999-2005. Anesthesiology . 2010; 110 (4): 759-765. DOI: 10.1097/ALN.0B013E31819B5BDC
  3. Pignaton W, Braz JRC, Kusano PS, et al. Perioperative and Anesthesia-Related Mortality: On 8-Year Observation Survey From A Tertiary Teaching Hospital. Medicine (Baltimore) . 2016; 95 (2): E2208. DOI: 10.1097/MD.00000000002208
  4. Brodbelt DC, Blissitt KJ, Hammond ra, et al. The Risk of Death: The Confidential Enquiry Into Perioperative Small Animal Fatalities. Vet anaesth anal . 2008; 35 (5): 365-373. DOI: 10.1111/J.1467-2995.2008.00397
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