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PREGNANCY COMPLICATIONS
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PEOPLE “Everyone has a photographic memory, it’s just that some people don’t have film.”
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PREGNANCY DYSTOCIA: Difficult birth or the inability to expel the fetus through the birth canal without assistance – Causes: Abnormal fetal position or size Uterine inertia Narrowed birth canal – Diagnosis: Digital palpation of vagina Radiographs ultrasound
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PREGNANCY: DYSTOCIA TREATMENT: – Manual manipulation: a fetus lodged in the vaginal canal can be manually dislodged. – For uterine inertia: oxytocin injections result in contraction of the uterine muscles; also, calcium preparations can be given – C-section
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PREGNANCY: INAPPROPRIATE MATERNAL BEHAVIOR DAM SHOULD: – Allow nursing – Grooming Stimulate CV,RS function Stimulates elimination and removal of waste material – retrieving – Protecting DAM SHOULD NOT: – Attack, kill, or cannibalize her young – Be overly protective, restless, or aggressive
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PREGNANCY: LACTATION DISORDERS Agalactia: lack of milk production – Causes include; Stress, malnutrition, premature partuition, or infection Galactostasis: milk stasis, which can result in mastitis Mastitis: a septic inflammation of the mammary gland – Clinical signs: Pain, discolored milk, fever, reluctance to allow nursing, abscessed glands
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PREGNANCY: LACTATION DISORDERS Treatment for mastitis: – Antibiotics – Warm compresses – Do not allow nursing from affected glands
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OTHER REPRODUCTIVE DISORDERS: PYOMETRA: Literally “pus in the uterus” – High levels of progesterone cause several changes in the uterus: hyperplasia and hypertrophy of the endometrial glands of the uterus Decreased myometrial contractions Predisoposes the uterus to bacterial infection – Most common bacteria isolated is E.coli
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PYOMETRA CLINICAL SIGNS: – Vulvar discharge – Vomiting – Dehydration – PU/PD – Azotemia DIAGNOSIS: – Radiology – Ultrasound – Bloodwork Ieukocytosis, neutrophilia with a left shift (closed pyometra)
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PYOMETRA This is a potentially life-threatening condition
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PYOMETRA Preferred treatment is ovariohysterectomy As well as antibiotics and fluid therapy An open pyometra is when the Cervix is open and allows drainage Of the pus
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VAGINITIS Definition: an inflammatory process, not necessarily infectious. Prepuberal bitch (aka puppy vaginitis) VS. Adult vaginitis
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VAGINITIS PUPPY VAGINITIS – Causes: Inverted vulva Hormonal fluctuations – Clinical signs: Purulent vulvar discharge +/- licking the vulva – Treatments: systemic antibiotics topical douching – Signs will return when treatment is discontinued – Condition resolves naturally after the first heat cycle
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VAGINITIS Inverted vulva
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VAGINITIS ADULT VAGINITIS – Causes: Anatomical abnormalities Canine herpesvirus – Clinical signs: purulent vulvar discharge +/- licking the vulva peri-vulvar skin irritation or infection Perceived urinary incontinence
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VAGINAL HYPERPLASIA/PROLAPSE Hyperplasia/prolapse – Occurs under the influence of estrogen Results in edematous vaginal tissue that protrudes from the vulva Treatment: – Ovariohysterectomy resolves the condition permanently and is the tx of choice – Will usually resolve spontaneously but will recur with subsequent estrous cycles
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VAGINAL HYPERPLASIA/PROLAPSE
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MAMMARY TUMORS Usually tumors of older intact females – ~50% of all tumors in female dogs – 3 rd most common tumor in cats Risk dramatically reduces with ovariohysterectomy (<1% if spayed before 1 st heat) 50% of canine tumors are benign – Only 10-20% of feline tumors are benign
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MAMMARY TUMORS Malignant tumors are usually fast growing, Invasive and ulcerated. Benign tumors are Often small and feel like a pea. Surgical removal is advised for all Mammary tumors. Biopsy is required To differentiate benign from malignant tumors
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OVARIOHYSTERECTOMY Surgical removal of the ovaries and uterus http://www.lbah.com/canine/spay.html
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PEOPLE “I love long walks, especially when they’re taken by someone who annoys me.”
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PROSTATIC DISEASES PROSTATE: Sex gland in the dog and cat – Located just caudal to the bladder, encircling the proximal urethra at the neck of the bladder – Purpose is to produce a fluid as transport and support medium for sperm during ejaculation
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PROSTATIC DISEASE
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BENIGN PROSTATIC HYPERPLASIA Caused by altered androgen/estrogen ratio – Mild or no clinical signs Tenesmus Enlarged prostate but not painful TX: – Castration results in a 70% decrease in size within 14 days
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BENIGN PROSTATIC HYPERPLASIA
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PROSTATITIS Bacterial prostatitis may be acute or chronic and it affects sexually mature dogs – Clinical signs: Lethargy Anorexia – Diagnosis: Urinalysis: hematuria, increased white blood cells, presence of bacteria – Treatment: Antibiotics Castration Prostatitis can lead to abscessation
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NEOPLASIA of the male genital tract Prostatic neoplasia is uncommon, but all prostatic neoplasms are malignant Transmissible venereal tumor (TVT) – Occurs only in the canine – Spreads during sexual contact – Tumors found on the penis, prepuce, and scrotum Cauliflower-like – Treatment: Chemotherapy Surgical removal of small localized masses
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TVT These tumors are friable and bleed easily
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CRYPTORCHIDISM One or both testicles have been retained in the abdomen or inguinal canal – Often the retained testicle is still functional Dog can still produce testoterone, show sexual desire and breed A testicular tumor known as sertoli cell tumor is more common in retained testicles These animal should not be bred
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CRYPTORCHIDISM Two normal testicles Unilateral cryptorchid Treatment is castration – testicle Should be removed from the Abdomen or pushed down from The inguinal canal
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CASTRATION http://www.lbah.com/canine/dog_neuter.html
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References Alleice Summers, Common Diseases of Companion Animals http://www.vet.uga.edu/vpp/clerk/Beimborn/in dex.php http://www.vet.uga.edu/vpp/clerk/Beimborn/in dex.php http://veterinarycalendar.dvm360.com/avhc/art icle/articleDetail.jsp?id=727396&pageID=1&s k=&date= http://veterinarycalendar.dvm360.com/avhc/art icle/articleDetail.jsp?id=727396&pageID=1&s k=&date http://www.vetmed.lsu.edu/eiltslotus/Therioge nology-5361/the_normal_canine.htm
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References http://extension.missouri.edu/p/G9923
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