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Course: Maternity Nursing�Topic: Pain Management During Labour

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Module Goals

The learner will be able to:

  • Explain the causes of pain in labour
  • List medications given during labour for analgesia
  • Describe alternative methods of pain management

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Pain In labour

Labour discomfort is an Intense painful experience

  • Physical Pain
    • Muscle cramps, uterine contractions, dilation of the cervix, stretching of the perineum, vaginal examinations
  • Emotional Pain
    • Fear, anxiety, tension, exhaustion, self -doubt

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Causes of Pain in Labour

  • First stage:

Due to dilation of the cervix, hypoxia of uterine cell during contraction, stretching of the lower uterine segment

  • Second stage:

Hypoxia of contracting uterine cells with contractions, distention of the vaginal and perineum, and pressure on adjacent structures

  • Third stage:

Contractions and cervical dilatation as placenta is delivered

(Anesthesia needed for episiotomy or cervical tear repair)

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Pain Management

  • Non-Pharmacological:
    • Emotional support
    • Instructional support
    • Relief measures
  • Pharmacological Analgesic:
    • Local anesthesia
    • Regional anesthesia (e.g. Epidural)
    • General anesthesia

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Non-Pharmacological:

  • Emotional support: From husband, midwives, nurse, family
  • Instructional support: nurse/midwife- Pushing/ bearing down, deep breathing
  • Acupuncture and hypnosis 
  • Massage, warm pack and thermal manual methods 
  • Reflexology
  • Biofeedback for pain
  • Bathing in water bath
  • Patterned focused breathing techniques

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Non-Pharmacological

‘Back labour’

Infant is in occiput posterior position placing pressure on mother’s back/sacrum and causing intense lower back pain.

  • Suggest use of shower or bath (water is comforting and reduces sensation of pain)
  • Provide counter pressure against sacrum (alleviates pressure on back)
  • Assist the mother to knee chest or hand and knee position (gravity lifts infant off mother’s spine)
  • Pelvic rocking

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Non-Pharmacological

Breathing techniques:

  • Relaxing- Slow rhythmic breathing, music, or singing- in early phase (1-3 cm)
  • Patterned breathing- short rhythmic mouth breathing ( 4-10 cm)
  • Short Panting or blowing breaths (for intense contractions or to stop from pushing

Ambulating: In early labour

Encouragement and praise: Emotional support throughout labour. Letting the mother know that she is doing well

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What Would the Nurse Do?

A 16-year-old patient presents in labour following a normal pregnancy. She is very anxious, does not cooperate with the labour staff, and complains of unbearable pain during contractions. She bears down with every contraction even though the cervix is only 4 cm dilated. The patient is told to behave herself. She is informed that the worst part of labour is still to come and is scolded for becoming pregnant. As she is a primigravida, she is promised analgesia when her cervix reaches 6 cm dilatation.

Evaluate this scenario and recommend alternate nursing interventions.

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Pharmacological Pain Relief

  • Sometimes women do not want to bear the pain, and they prefer different methods of pain relief if available in the hospital or clinic
    • Narcotic analgesics
    • Local anesthesia
    • Dissociative anesthetic
    • Regional anesthesia
      • Spinal block
      • Epidural anesthesia
    • General Anesthesia

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Use of Analgesics in Labour

In the first stage of labour:

  • Patient ask for pain relief
  • Painful uterine contractions during a normal labour
  • Painful contractions + oxytocin stimulation
  • Painful contractions with slow progress during the active phase

Second Stage:

  • Episiotomy
  • Instrumental Delivery

Third Stage:

  • Episiotomy with perineal tear

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Methods of Providing Analgesics

General Methods:

  • Support
  • Calm environment
  • Encouragement

Specific Methods:

  • Opiates, e.g. pethidine
  • Inhalational analgesia, i.e. nitrous oxide with oxygen
  • Local anesthesia
  • Epidural anesthesia
  • General anesthesia

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General Methods to Reduce Pain

  • Knowledge and information of what to expect
  • A pleasant environment
  • Support system: Husband, family, friends
  • Allowing to walk around during labour

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Specific Method: Sedation During labour

Opioids: (Pethidine)

  • Commonly used in the first stage of labour
  • Have sedative effect
  • Side effects: Nausea and Vomiting
  • Used together with Promethazine

Remember: Higher doses of Pethidine can cause respiratory and central nervous system depression, drop in blood pressure in Mother, and respiratory depression on fetus

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Specific Method: Sedation During labour

Inhalation Analgesia: Entonox

  • Mixture of 50% Nitrous Oxide and 50% Oxygen supplied in cylinders
  • Breathed in by patient through a mask
  • Short-Acting
  • Safe for mother and fetus
  • Best for patient requiring analgesia for the first time in advance labour
  • Does not have any side effects and causes overdose

Disadvantages:

  • Very expensive
  • Not always effective
  • Requires apparatus for administration
  • Patient often hyperventilate: Pins and Needles in their face and hands

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What Would the Nurse Do?

  • Cervical dilatation in a multigravida patient in labour at term progresses from 3 cm to 8 cm in 4 hours. The patient complains that her contractions are very painful. The midwife informs her that she is progressing fast and that her cervix will soon be fully dilated. She adds that the patient must continue without analgesia for the last 2 hours as the delivery will soon be over.

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Specific Method: Sedation During Labour

Local Anesthesia: Lignocaine/Xylocaine/Lidocaine

  • Injection given into the tissues
  • Available in different concentrations: Only 1% is used in labour
  • Causes burning sensation for 1-2 minutes
  • Action last for 45 minutes
  • Usually given prior to episiotomy, or repairing any tears
  • Given prior to performing pudendal block
  • Dangerous overdose effect: Convulsion

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Specific Method: Sedation During Labour

Epidural Anesthesia

  • Given into the space of spinal nerves & blocks the pain
  • Needs special training and equipment
  • Available in level two or three hospitals

Indications:

  • Poor progress in active phase
  • Ineffective uterine contraction
  • Breech presentation
  • During C- Section

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Specific Method: Sedation During labour

Nursing Care of Epidural Anesthesia

  • Blood Pressure every 5 minutes for 30 minutes
  • Respiratory rate
  • Pain and sedation score
  • Insertion of urinary catheter
  • Epidural hematoma
  • Headaches

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Specific Method: Sedation During labour

General Anesthesia

  • Don’t feel pain, completely unconscious

Dangers of GA

  • Risk of vomiting and aspiration
  • Stomach emptying is delayed
  • Sphincter tone of lower esophagus is reduced
  • Intraabdominal pressure is increase

Precautions:

  • NPO
  • Antiemetic for vomiting
  • Gastric acid must be neutralized by antacid before giving GA

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What Would the Nurse Do?

A multigravida patient, who has had two previous Caesarean Sections, is booked for an elective Caesarean Section under general anesthesia at 39 weeks gestation. The patient is admitted to the hospital at 07:00, having had nothing to eat since 24:00 the previous night. She is prepared for surgery at 08:00. As the patient has been kept NPO, no drug to prevent vomiting during intubation and extubation is given. Only an intravenous infusion is started and a Foley catheter passed before she is moved to the surgery area.

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Red Flags: Epidural

  • Following an epidural there may be a temporary drop in the mother’s blood pressure and an accompanying decrease in the fetal heart rate
    • Assure that the mother receives an Intravenous bolus of 1000 mL of fluid prior to the epidural
    • Monitor the fetal heart rate closely especially in relation to contractions
    • Discontinue Pitocin, turn the patient to left lateral side, increase IV fluids and provide supplemental face mask oxygen until the fetal heart rate returns to baseline
  • May cause urinary retention; assess bladder frequently

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Cultural Considerations

Four Important cultural considerations:

  • Communication
  • Family dynamics
  • Provider Gender
  • Religious and Cultural Beliefs
  • Desires for labour

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References:

  • National Health Service (2020). Epidural: Side effects. Retrieved on 13th of October 2020 from https://www.nhs.uk/conditions/epidural/

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© 2013-2024 Nurses International (NI) and the Academic Network. All rights reserved.