Equine Dystocia & Fetotomy Flashcards
Taught by Dr. Chapwayna
T/F: Any type of correction or assisted delivery of a foal will result in subsequent decreased fertility in the mare
True
Lidocaine and Xylazine are often combined for epidural injections in mares. How many mLs of lidocaine and how many mLs of Xylazine should be given?
5mL Lidocaine with 0.75mL Xylazine
Quick onset and lasts up to 5 hours. Inject slowly and avoid repeat epidurals!
Describe the presentation, position, and posture shown here:
True Breech
Posterior, dorsosacral, both hind limbs flexed at hip
T/F: Twinning is a fetal cause of dystocia
False
Twinning is a maternal cause of dystocia
Describe the presentation, position, and posture shown here:
Hock Presentation
Posterior, dorsosacral, both hind limbs flexed at hock
What are the general indications for C-section in the mare?
- Uncorrectable malposture
- Vaginal Trauma
- Transverse presentation
- Maternal pelvic deformities
Which of the following is correct about dystocia in the mare?
- Foal is usually dead
- It’s a common problem
- It’s not usually an emergency situation like it is in the cow
- Usually, it’s the result of abnormal fetal posture
Usually, it’s the result of abnormal fetal posture
When performing epidural anesthesia to a mare for correcting a unilateral carpal flexion posture, which of the following must you avoid?
- Inject quickly, and repeat injection at the same site if necessary
- Inject 5-8 mL of 2% Lidocaine
- Inject 0.75 mL of Xylazine
- Inject 5 mL of Lidocaine mixed with 0.75 mL of Xylazine
Inject quickly, and repeat injection at the same site if necessary
T/F: There is never an indication to use a calf jack in horses.
False
T/F: J-lube can be fatal if introduced into the abdomen
True
Less than ___% of all equine dystocias should require caesarian section
Less than 10% of all equine dystocias should require caesarian section.
90% resolved by manipulation or partial fetotomy
T/F: Improper position, presentation, and posture are fetal causes of dystocia in the mare
True
What is the presentation, position, posture?
Cranio-longitudinal, dorsosacral, right leg flexed at shoulder
T/F: Uterine inertia or fatigue is a fetal cause of dystocia
False
Uterine inertia or fatigue is a maternal cause of dystocia
How would you deliver this foal with contracted tendons?
Partial fetotomy (or C-section)
Identify this instrument:
Kuhn Obstetrical Crutch
Used to repulse fetus for manipulations
Identify this instrument:
Krey Hook
Identify this instrument:
Haupter OB Wire Guide
T/F: Uterine dorsoretrofelxion is a maternal cause of dystocia
True
