Adams et al: Risk factors for neonatal mortality prior to hospital discharge in brachycephalic and nonbrachycephalic dogs undergoing cesarean section
Veterinary Surgery 7, 2022

Risk factors for neonatal mortality prior to hospital discharge in brachycephalic and nonbrachycephalic dogs undergoing cesarean section

🔍 Key Findings

  • Neonatal survival to discharge was 93.1% overall, with no significant difference between brachycephalic (94.8%) and nonbrachycephalic (91.8%) breeds.
  • Elective C-section significantly improved neonatal survival (99.2%) compared to emergency C-section (87.1%) (p < .001).
  • Larger C-section litter size was positively associated with survival (p = .004; OR 1.57), whereas total litter size had no effect.
  • Maternal heart rate and stage of labor were associated with neonatal mortality in univariable analysis, but not multivariable.
  • Brachycephalism alone was not a risk factor for neonatal mortality (p = .221) in multivariable analysis.
  • Emergency C-section was the strongest predictor of neonatal mortality (OR 4.75), regardless of breed.
  • Multidisciplinary team approach likely contributed to high survival rates, emphasizing importance of coordinated care.
  • Historical factors such as primiparity and maternal age were not associated with mortality in this cohort.

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Adams et al: Risk factors for neonatal mortality prior to hospital discharge in brachycephalic and nonbrachycephalic dogs undergoing cesarean section
Veterinary Surgery 7, 2022

🔍 Key Findings

  • Neonatal survival to discharge was 93.1% overall, with no significant difference between brachycephalic (94.8%) and nonbrachycephalic (91.8%) breeds.
  • Elective C-section significantly improved neonatal survival (99.2%) compared to emergency C-section (87.1%) (p < .001).
  • Larger C-section litter size was positively associated with survival (p = .004; OR 1.57), whereas total litter size had no effect.
  • Maternal heart rate and stage of labor were associated with neonatal mortality in univariable analysis, but not multivariable.
  • Brachycephalism alone was not a risk factor for neonatal mortality (p = .221) in multivariable analysis.
  • Emergency C-section was the strongest predictor of neonatal mortality (OR 4.75), regardless of breed.
  • Multidisciplinary team approach likely contributed to high survival rates, emphasizing importance of coordinated care.
  • Historical factors such as primiparity and maternal age were not associated with mortality in this cohort.

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Multiple Choice Questions on this study

In Adams 2022 et al., on C-section survival rates, what was the neonatal survival to discharge rate in puppies from elective procedures?

A. 87.1%
B. 89.4%
C. 94.8%
D. 97.6%
E. 99.2%

Answer: 99.2%

Explanation: Neonatal survival after elective C-section was 99.2%, significantly higher than emergency cases.
In Adams 2022 et al., on C-section survival rates, what relationship was found between C-section litter size and neonatal survival?

A. Larger litters had lower survival
B. Smaller litters had higher survival
C. Larger C-section litters had higher survival
D. Total litter size determined survival
E. No relationship found

Answer: Larger C-section litters had higher survival

Explanation: Larger C-section litter size was positively associated with neonatal survival (OR 1.57, p = .004), while total litter size was not predictive.
In Adams 2022 et al., on C-section survival rates, which factor was most strongly associated with improved neonatal survival?

A. Breed (brachycephalic)
B. Litter size >6
C. Total litter size
D. Elective vs emergency C-section
E. Use of epidural

Answer: Elective vs emergency C-section

Explanation: Survival was significantly higher in elective (99.2%) vs emergency (87.1%) C-sections; this was the strongest predictor in multivariable analysis.
In Adams 2022 et al., on C-section survival rates, how did brachycephalic breed status influence survival in the multivariable model?

A. Increased mortality
B. Decreased mortality
C. No effect
D. Only significant in elective C-sections
E. Only significant in emergency C-sections

Answer: No effect

Explanation: Brachycephalism was not a significant variable in the multivariable model for neonatal survival (p = .221).
In Adams 2022 et al., on C-section survival rates, what was the overall neonatal survival to hospital discharge for all breeds combined?

A. 85.7%
B. 88.2%
C. 90.5%
D. 93.1%
E. 96.4%

Answer: 93.1%

Explanation: 93.1% was the reported overall survival rate for all puppies delivered via C-section across both breed types.

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