Obstetrical Maneuvers pt. 1 Flashcards

1
Q

4 classifications of obstet maneu

A

Mutation (or correction) - COMMON

Forced extraction (may be after mutation) - COMMON

Fetotomy

CS
- For small animals - recommended for small animals

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2
Q

Definition: change of presentation, position or posture to bring the fetus to a normal presentation, position and posture
Ex. dorsotransverse fetus → maneuver → normal anterior longitudinal position

A

mutation/correction

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3
Q

4 Specific manipulations

A

Repulsion or retropulsion
-Have space to work in
Rotation
Version
Extension and flexion

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4
Q

Requirements prior to performing mutation:
Complete ____of the cervix;
movement of fetus in ___ and ____
rupture of fetal envelopes and adequate lubrication;

A

dilation
uterus and pelvis

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5
Q

instruments of mutation/correction

A
  1. Obstetrical chains
    Oblong ends “like choke chains” - thread one into the other
  2. Obstetrical handles
  3. Stomach pump
    -Pump in lubricants into the uterus/ birth canal
  4. Stomach tube

5.Bucket of clean water
-For washing

  1. Soap

7.Lubricant/s
-Vegetable oil - cheaper, easy to find
-Water-based obstetrical lubricants

8.Vaseline
-Coat lining of birth canal

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6
Q

obstetric chains: longer ones go to the shoulder, shorter ones go around pastern of the animal t/f

A

t

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7
Q

Returning fetus back to the uterus

Pushing fetus _____ in uterus to obtain adequate space for correction of fetal part in an abnormal presentation, position and posture

may be done only with instruments t/f

Do this when the uterus contracts, when the abdomen is not contracting. t/f

A

retropulsion

forward

f - can be done with hands

f - uterus RELAXES

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8
Q

instruments for retropulsion krg

A

Kuhn’s crutch
-U-shape pushed against shoulder or any part u want to push back to gain leverage
Reindi’s repeller
Gunther’s repeller

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9
Q

in handling dystocia in mare - put in ____ ataching the hindlimb into a ___

can you put lubricant? yes or no

This technique will help you in the mutation of fetal malpositions and even dystocia due to presentation problems not only in the mare but also in cattle and buffaloes. t/f

A

lateral recumbency

pulley

yes

t

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10
Q

Positional problems
Turning the fetus on its’ long axis to correct the position

Aims for Dorsopubic/dorsoileal presentation - nakabaliktad back of fetus is closee to pubis or ileum → goal is to rotate back to _____ position

instrument used

A

rotation

dorsosacral

cammerer detorsion fork

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11
Q

Problems with presentation
Effecting change in fetal presentation.
Difficult if you want ot convert from posterior to anterior longi presentation
If you have fetus in transverse position

A

version

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12
Q

ventral presentation can be modified to a longitudinal presentation t/f

Usually limited to ___ (angle) and can be done by repelling one extremity of the fetus and exerting traction on the other.

A

f - transverse to longi

90

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13
Q

Push hindlimb pull forelimb

Push - ___
Pulling – _____
First pass around shoulder
Attached a rope → assistant pull when ready to push → anterior longitudinal presentation

A

procedure for dorso trasnvers

repeller or hand
obstetric chains

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14
Q

type of dorso transverse
moving the head of the fetus towards the pelvic inlet
More difficult if neck is also bent

posterior parts of the fetus are moved towards the pelvic inlet
Hindlimbs come out first

A

anterior or cephalic version

posterioir or pelvic version

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15
Q

position - solution
posture - solution
presentation - soln

A

rotation
extension and flexion
version

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16
Q

Extension and Flexion
Involves 3 things rlt

A

Repulsion of proximal extremity of limb

Lateral rotation of middle portion carpus, tarsus or neck, and

Traction on distal extremities

17
Q

in carpal flexion posture the chains are placed in the

Make sure the hoof will not injure the uterus → ___it to prevent sliding sa uterus

A

pastern

cup

18
Q

Carpal flexion posture
Repel
Push it and rotate backwards/Rotate middle portion outwards
Bring hoof in the ___
Pull out

A

middle

19
Q

Forelimbs: (conversion)
Elbow flexion→ grasp forearm to convert to ____flexion
Shoulder flexion → _____flexion → carpal flexion (or rekta carpal)

A

carpal
elbow

20
Q

Hindlimbs
Hip flexion –> __- flexion → rotate hocks to get hooves inwards
*Pull on the hocks to convert ___ flexion
Use arm to push outwards, hands grasp the hooves → bend it → take it out

Use of obstetrical chains and assistance for pulling
t/f

A

hock

t

21
Q

Withdrawal of fetus from birth canal of dam by application of force

Adequate lubrication is not essential t/f

Pull should be synchronous to straining of the cow t/f

A

forced extraction

f - ESSENTIAL

t

22
Q

Follow a upward arc t/f

Hips ___ or 5 degrees
Hindlimbs - parallel sa hindlimb ng animal t/f
Ensures the pelvis of fetus would pass into the widest diameter of the pelvis

A

f - downward
4
f - perpendicular

23
Q

Widest portion of fetus
Longest diameter -

One shoulder is through → easier na sa thorax t/f

A

shoulder and hip
oblique (making sure one of the limbs pass before the other one)

t

24
Q

in forced extraction avoid this

A

hip lock
ileac crest can lock in the bony pelvis of the dam if straight

25
Q

Obstetrical operation which has the obiect of reduction in the volume of the fetus either by mutilation or by division to be extracted in parts

Performed when delivery of the entire fetus is not possible

Done on a dead fetus or when the life of the fetus is to be sacrificed

A

fetotomy

26
Q

cases where you cannot move dead fetus easily

A

Anasarca(bloated fetus), postural abnormalities, transverse presentation

27
Q

Cows: at least 4 hours → assist needed t/f

A

t

28
Q

Advantages of fetotomy resd

A

Rapid reduction in size of fetus facilitating safe delivery per vaginum.
Shoulder flexion posture almost half a day
Cows: at least 4 hours → assist needed
fetotome - flexible contained in the tube to prevent damaging other parts of reproductive tract

Exposure of dam to major surgery is avoided
CSection not needed
If dam is already exhausted = surgical risk

Short recovery time and less care is required afterwards.

Dam is more stable than with C-section
General anesthesia - recumbent

29
Q

disadvantages of fetotomy mem

A

May require more time than C-section

Exhaustive and may cause injuries to obstetricians
Making use of a wire soap?

May be dangerous to dam
Can cause injuries

30
Q

Indications for performing fetotomy mredid

A

Malpresentation, malposition and malposture of fetus that cannot be corrected

Relative disproportion b/w size of fetus and maternal birth canal.

Emphysema

Deformities of maternal pelvis: exostosis, fracture, tumors

Irreducible distortion of fetus- contraction of muscle, tendon and Wryneck.

Disease of fetus- hydrocephalus, ascites, edema and anasarca.