Post Natal Care Flashcards
Puerperium
Begins with Delivery of Placenta and lasts until Reproductive Organs return to Pre-Pregnant
state, which lasts about 6/52
Hormone Levels in Puerperium
Oestrogen and Progesterone fall to Pre-Pregnancy levels by day 7; HPL and β-hCG levels fall
rapidly; Should not be detectable by day 10
Uterine Change in Puerperium
Uterus undergoes rapid involution; Weight decreases from 1kg Post-delivery to 500g; By 2/52, returns to pelvis and no longer abdominally palpable
Vagina Changes in Puerperium
– Rapidly regains tone but fragile for 1 – 2/52; Vascularity and Oedema decrease, and
rugae re-appear by 4/52; Cervical Os gradually closes after delivery
o Lochia – Sloughed-off Necrotic Decidual Layer mixed with blood; Initially red (Lochia
Rubra) and becomes paler (Lochia Serosa), finally becoming yellow-white (Lochia
Alba); Flow might last 3 – 6/52
• Perineal Oedema persists for up to week; Longer if Prolonged Second Stage, Operative
Delivery, Perineal Tears requiring repair
Breast Changes in Puerperium
Between days 2 – 4, become Engorged; Vascularity increases and Areolar Pigmentation increases; Enlargement of Lobules due to Alveolar number and size
Cardiovascular Changes in Puerperium
CO initially increases due to return of blood from Contracted Uterus; Rapidly
decreases due to Diuresis and returns to normal by 2 – 3/52
o HR returns to Pre-pregnancy rate; Changes in blood volume due to loss in delivery
and reduction in Plasma volume
Main causes of morbidity postnatally
Secondary Post-Partum Haemorrhage, Venous
Thromboembolism and Puerperal Pyrexia
Post Partum Haemorrhage
Abnormal bleeding occurring up to 6/52 post-natal; 2% admitted, 50% requiring surgery; Major cause of death in developing countries
o Caused by Retained products, Endometritis or Tear
o Management similar to Massive Obstetric Haemorrhage
VTE
Second major cause of direct maternal death; May be asymptomatic until presenting with PE but DVT symptoms might precede; High level of suspicion in Post-natal
o 0.1-0.2% of pregnancies; Venous Stasis, Possible Pelvic Venous Trauma and
Hypercoagulable state of pregnancy
VTE Prevention
LMWH to post-partum 6 weeks or more; Higher doses required if Antithrombin Deficiency (Plus Anti-Xa monitoring) ▪ If no previous Hx but ≥3 risk factors – For 5/7 post-partum
VTE Management
o Management similar to Standard VTE, except V/Q Scanning should be used instead of CTPA due to Radiation risk where possible
▪ Treat as PE even if imaging negative in high clinical suspicion; Repeat in 1/52
▪ LMWH as effect as UFH, with lower side effects; Titrate based on aPTT for
UFH or Anti-Xa for LMWH; If Haemorrhage risk should use UFH (Shorter half-
life, easier to complete reversal)
o Treat for at least 6/12 (or 6/52 post-natal); Should be stopped at Onset of Labour;
Warfarin can be used post-natal and is safe during breastfeeding
o Percutaneous Thrombus Fragmentation or Surgical Embolectomy might be required
Puerperal Pyrexia
Postnatal Sepsis was most common cause historically, >40% of deaths; Use of Antibiotics has
curbed incidence; Recent resurgence
Puerperal Pyrexia: Risk Factors
Anaemia, Prolonged ROM, Prolonged Labour, Bacterial Contamination during
examination, Instrumentation, Trauma, Haematoma
Puerperal Pyrexia: Aetiology
Endometritis (CS, PROM, Chorioamnionitis, Prolonged Labour, Foetal Monitoring),
Perineal Wound Infection, Breast Abscess/Mastitis, UTI, Thrombophlebitis (High risk of VTE; Should always be considered in DDx), Respiratory Complications (Usually within first 24h;
Invariably in CS delivery; Atelectasis, Aspiration, Pneumonia), Abdominal Wound Infection (6%
after CS; <2% if IV Abx used)
Management of Puerperal Pyrexia
• FBC, BC, MSU, Swabs of Cervix and Lochia, Wound Swabs, Throat Swabs, Sputum Culture, CXR
• Supportive Management – Analgesia, NSAIDs, Wound care, Ice packs if Perineal/Mastitis
• Antibiotics – Need to cover for Penicillin-resistant Anaerobes (e.g. Bacteroides); Tetracycline
should be avoided if breastfeeding
o Involvement of Microbiology if failure to respond
• Interventions – I+D of breast abscess, Secondary Repair of Dehiscence, Drainage and Pelvic
Haematoma and Abscess
Prevention of Puerperal Pyrexia
• If suspected UTI in Antenatal period, Investigate and Treat promptly
• Advice regarding Breastfeeding and Breast Care given during Antenatal visits
• Prevention and Treatment of Pre-existing Anaemia
• Rigid Antiseptic Measures – Handwashing, Alcohol Hand Gel, Sterility of Instruments,
Antiseptic Creams and Lotions; Cath under sterile conditions, and only when indicated
• Prophylactic Antibiotics during Caesarean section
Pain in Puerperium
After Pains can occur due to Uterine Contraction in first 3-4 days; More common and severe if Instrumental delivery, Episiotomy or Perineal Tears
o Increasing pain might be sign of infection; Antibiotics for treatment
o Paracetamol and NSAIDs are as effective as Opioids; Topical agents might be of use
Urinary Retention
Common with Epidural use; Catheterisation might be required to protect
from over-distention; best to leave indwelling for 24 – 48hrs
o An indwelling catheter should be used after Spinal Anaesthetic, until full sensation
returns, to protect against over-distention
UTI
Low Threshold for suspicion; Confirm with MSU and treat with Abx and oral fluids
Constipation
Lack of fluid and food, and dehydration in labour; Pain and fear of wound
disruption, or Opioid Analgesia can contribute
o Dietary advice, Osmotic Laxatives; Stool softeners for women with 3-4 deg tears