Understanding the Challenge of Chronic Pain in Pets
Chronic pain in companion animals is frequently underdiagnosed because dogs and cats instinctively mask discomfort. Owners and even clinicians can miss subtle signs when animals continue to eat, sleep and engage in routine activities. Conditions such as hip dysplasia—a common degenerative joint disorder in dogs—can cause intermittent or low-grade pain that is hard to detect through casual observation alone. Recognizing subtle physiological and behavioral cues is essential for early detection, better pain control and long-term quality of life.
Meet Pippa: A Labrador’s Life-Saving Journey
Pippa is a nine-year-old, 61 lb spayed female Labrador Retriever diagnosed with hip dysplasia early in life. To the casual observer she looked content and moderately active, but her condition made her susceptible to occasional pain episodes that were not always obvious. Her owner and veterinarian, Dr. Nitzan Kroter, fitted Pippa with a PetPace collar to continuously monitor physiological and behavioral signals and to identify patterns that might indicate discomfort.
How PetPace Monitors Chronic Pain
The PetPace collar provides continuous collection of physiological metrics and behavior data to reveal trends that can go unnoticed between veterinary visits. For Pippa, several key metrics were monitored and compared to reference values for similar dogs:
- Pulse: Pippa’s average pulse of 74 bpm compared favorably to breed- and age-matched norms.
- Respiration: Her respiratory rate averaged 17 breaths per minute, within expected ranges for a Labrador at rest.
- Resting time: Pippa spent about 90.8% of her time resting, a figure consistent with peers of the same age and body type.
- Resting posture and positioning: She spent only 8% of rest time lying on her left side, below the typical 13% benchmark; such asymmetric positioning can suggest discomfort on one side, consistent with hip problems.
- Heart rate variability (HRV): Overall HRV indices fell within normal ranges, yet closer inspection showed intermittent dips that correlated with suspected pain episodes.
Comparing these measurements to population averages allowed the monitoring system to flag subtle deviations that may indicate discomfort even when outward behavior seemed normal.
Advanced Analysis: VVTI and Pain Detection
Heart rate variability analysis, including measures such as the Vaso-Vagal Tonus Index (VVTI), offers insight into autonomic nervous system responses that can change with pain or stress. By plotting VVTI against pulse and observing minute-to-minute variation over weeks or months, clinicians can detect patterns that occasional checks miss. In Pippa’s case, about 3.2% of VVTI values fell below the expected range, suggesting intermittent pain episodes despite an otherwise normal appearance. Long-term, continuous data provide a proactive view that helps guide clinical decisions.
Why This Matters for Pet Parents
Even pets that appear happy and active may be experiencing pain that affects mobility, behavior and long-term health. Continuous monitoring supports owners and veterinarians in several practical ways:
- Early detection: Identify intermittent pain before it progresses into more severe or chronic problems.
- Data-driven treatment: Use objective metrics to inform adjustments to therapy, physical rehabilitation and lifestyle modifications.
- Trend monitoring: Evaluate responses to interventions by tracking rest, activity, HRV and posture over time.
- Quality of life: Intervene sooner to keep pets comfortable, active and engaged in daily routines.
As Dr. Asaf Dagan, PetPace Chief Veterinarian, observes: “Long-term data analysis provided by continuous monitoring can reveal pain conditions that owners may not be aware of. Pets compensate for discomfort, so objective monitoring is crucial.”

Pippa’s Outcome
Armed with PetPace insights, Dr. Kroter identified intermittent pain episodes in Pippa and implemented appropriate interventions to improve her comfort. Ongoing collar monitoring captured subtle shifts in physiology and behavior, enabling timely adjustments to her care plan. Today Pippa remains active and content, illustrating how continuous, objective monitoring can make a meaningful difference in managing chronic conditions such as hip dysplasia.
The Proactive Pet Parent Advantage
Pets with chronic conditions benefit from proactive monitoring that supplements routine veterinary examinations. Tools that provide continuous data—covering heart rate, respiration, activity, rest posture and HRV—help owners and clinicians make informed, objective decisions. Long-term monitoring is not limited to tracking daily steps; it enables earlier detection of problems, tailored treatment strategies and measurable improvements in a pet’s quality of life.
Learn More
To explore the full case study on Pippa and the role of continuous monitoring for dogs with hip dysplasia, consult the PetPace case study materials provided by your veterinarian or the device manufacturer.