Management Of Postpartum Haemorrhage

BY

DR AKPAN, UDORIMA    

INTRODUCTION

DEFINITIONS

PHYSIOLOGY OF THIRD STAGE OF LABOUR

ASSESSMENT OF BLOOD LOSS AT DELIVERY

CAUSES OF PRIMARY & SECONDARY PPH

CLINICAL FEATURES

TREATMENT

 COMPLICATIONS

PREVENTIVE MEASURES

REFERENCES

CONCLUSION

INTRODUCTION

Obstetric Haemorrhage ranks as the  leading cause of maternal mortality accounting for approx. 25% of maternal deaths.

POSTPARTUM HAEMORRHAGE though preventable, accounts for  the majority of the cases of obstetric haemorrhage 20-50%.

PPH is the most common and severe type of obstetric haemorrhage.

It is an enigma(difficult to understand) even to the present day Obstetrician as it is sudden, often unpredicted, assessed subjectively and can be catastrophic.

Risk of Maternal Mortality & Morbidity are 50 times more after PPH

Accounts for approximately 25% of all maternal deaths.

110000 maternal deaths per year are due to PPH

Nigeria accounts for about 23% of global maternal morbidity burden

DEFINITIONS & TYPES

Defined as bleeding from the genital tract in excess of 500mls after vaginal delivery (WHO 2012) or 1000mls after Caesarean delivery, a decrease of 10% or more in haematocrit (ACOG) between admission and postpartum period or any blood loss enough to cause cardiovascular instability

>1500ml caesarean hysterectomy.

Essentially 2 types of PPH.

  • PRIMARY PPH: Occurs within the first 24 hours of delivery : Most common
  • SECONDARY PPH Occurs after 24 hours to the end of 6 weeks after delivery

ASSESSMENT OF BLOOD LOSS AFTER DELIVERY

Difficult

Mostly by Visual estimation (Subjective & Inaccurate)

Under-estimation very much likely

Clinical picture – Often manifest late & can be misleading

Our Mothers – Malnourished, Anaemic, Small built, Less blood volume.

MECHANISM OF HAEMOSTASIS AFTER DELIVERY

Uterine contraction & retraction                 Occlusion of the sinuses

Platelet aggregation                 Clots formation

  • Shortest stage, but carries great risk.
  • During pregnancy, myometrial fibres are stretched to accommodate fetus.
  • After delivery, uterus undergoes contraction and retraction.
  • Contraction is a temporary reduction in length of the fibers, which attain their full-length during relaxation. In contrast, retraction results in permanent shortening of the fibers once and for all.
  • This culminates in reduction of the surface area of the uterus favoring separation of placenta and effective hemostasis after the separation of the placenta (PHYSIOLOGICAL SUTURE OR LIVING LIGATURE).

PHYSIOLOGY OF THIRD STAGE

LIVING LIGATURE

CAUSES OF PRIMARY PPH

4 Ts plus uterine inversion

  • Tone:  (Atonic uterus)

Most common cause, up to 80% Polyhydramnios; AF>1500-2000ml or AFI 24-35cm or SDP >/=8-16cm, Fetal macrosomia, Multiple gestation, Co-existing Uterine mass, Previous history of uterine atony, Grandmultiparity, Prolonged/Precipitate labour, oxytocin driven labour, Halogenated Anaesthetic agents,, Tocolytics use, History of APH, Full bladder etc

  • Tissue: (Retained products of conception)
  1. Accounts for about 10%
  2. Simple adhesion
  3. Morbid adhesion – Accreta, Increta & Percreta
  • Trauma: Genital tract trauma

Forms about 20% Genital lacerations/tears, Large episiotomy & extensions, Haematoma

  • Thrombin: Coagulopathy, e.g. DIC Less than 1% – Consumptive coagulopathy (Abruptio placentae, Sepsis from IUFD & PPROM, Massive blood loss, Massive blood transfusion, Preeclampsia with Severe features/Eclampsia, Amniotic fluid embolism, Hepatitis

COMMON CAUSES OF SECONDARY PPH

  1. Retention of placenta tissue
  2. Endometritis
  3. Delayed placental bed involution

Other less common etiologies:

  • Congenital coagulopathies
  • Submucous fibroids,
  • Adherent Placenta
  • Ceaesarean scar dehiscence
  • Ruptured uterine pseudoaneurysm

CLINICAL FINDING IN PPH: DEGREE OF SHOCK

MANAGEMENT

  1. It is a dire obstetric emergency and needs to be managed as such.
  2. Rapid, Aggressive, Timely, collaborative and Skilled interventions are critical for survival.
  3. “Golden hour”
  4. Call for help
  5. Multidiciplinary
  • Obstetrician
  • Anaesthetist
  • Haematologist/Lab scientists
  • Midwives/nurses
  • **Interventional radiologists
  • Other support staff

Ensure ABC of resuscitation for pts in shock.

Establish two IV access (wide bore cannula)

Obtain investigations (FBC, PCV, Electrolytes, Grouping and cross matching, Clotting profile)

IV fluids, preferably, warm crystalloids

Catheterize patient

Rub for contraction

Quickly Inspect placenta/ Genital Exploration

Uterotonic agents

  • Oxytocin
  • Ergometrine( NOT TO BE USED IN PTS WITH HYPERTENSION)
  • Misoprostol
  • Syntometrine
  • Carbetocin
  • Carboprost (Prostaglandin F2 alpha)

Tranexamic acid

Blood and blood products

  • Fresh whole blood(Oneg)
  • Fresh frozen plasma
  • Cryoprecipitate
  • Platelet concentrate

MANAGEMENT OF ATONY

  1. Ensure bladder is empty;
  2. Massage uterus for contraction;
  3. Administer oxytocin 10 IU bolus/other uterotonics and relevant medication
  4. Commence oxytocin infusion
  5. Do manual compression of the uterus if not well contracted;
  6. External aortic compression

EXTERNAL AORTIC COMPRESSION

TAMPONADE

Tamponade with specialized catheters

  • Bakri
  • Rusch
  • Sengstaken blake more
  • Improvised condom/foleys catheter (resource poor settings)

Commercially Available Balloon Tamponades in Use

THE CONDOM /FOLEY’S CATHETER TAMPONADE

SURGICAL APPROACH

Uterine compression sutures; B- Lynch

Ligation of vessels : Systematic Pelvic Devascularization; (Uterine artery ligation, Ovarian artery ligation, Internal iliac artery ligation)

Arterial embolization

Hysterectomy

  • Early recourse to hysterectomy

MANAGEMENT OF TISSUE

  • Deliver the placenta and membranes by controlled cord traction or manual removal if retained;
  • If membranes are retained do manual vacuum aspiration.
  • If it’s morbidly adherent placenta either: administer methotrexate or hysterectomy.
  • Give broad spectrum antibiotics.
  • Transfuse as appropriate

MANAGEMENT OF TRAUMA

  • Episiotomy repair
  • Perineal/vaginal tear repair
  • Cervical laceration repair
  • Uterine repair/Hysterectomy

MANAGEMENT OF THROMBIN

  • Multidisciplinary
  • Haematologist
  • Anaesthetist/Intensivist
  • Treat underlying cause
  • Give appropriate blood products

NON PNEUMATIC ANTI-SHOCK GARMENT

TREATMENT OF PPH  UTERINE INVERSION

Manual replacement

– Under GA/Uterine relaxant – Tocolytics (terbutaline, nitroglycerin, MgSO4)

– Oxytocin infusion post-replacement

Placenta adherent, LEAVE IN SITU, attempt to deliver may cause MASSIVE HAEMORRHAGE and/or shock.

Prompt manually replace the inverted uterus to its normal position.

A hand inside the vagina and pushing the fundus along the long axis of the vagina toward the umbilicus (Johnson’s Maneuvers).

  • Hydrostatic method
  • Surgical method (delayed procedure) Huntington & Haultain procedures

MANAGEMENT OF SECONDARY PPH

FEATURES

  • Bleeding PV
  • Fever
  • Feeling of unwell
  • Uterine subinvolution
  • Abdominal tenderness
  • Offensive vaginal discharge

EVALUATION

  • Clinical history
  • Examination
  • Investigation
  • FBC
  • HVS MCS
  • Sepsis screening
  • Imaging studies

TREATMENT (underlying cause)

  • Resuscitation
  • Uterotonics /Antifibrinolytic may be beneficial
  • Antibiotic cover
  • Evacuation of retained products (requires expertise due to risk of Asherman’s and perforation) – May be done under USS guidance
  • Blood transfusion/Blood products/clotting factor concentrates
  • Chemotherapy
  • Arterial embolization
  • Hysterectomy

COMPLICATIONS OF PPH

Early:

  1. Anemia
  2. Fatigue
  3. Hypovolemic shock
  4. Blood Transfusion Reaction
  5. Acute kidney injury
  6. Myocardial Ischemia
  7. DIC
  8. Death
  9. Hysterectomy:

Urinary/ G.I tract injury, Pelvic hematoma, abscess.

Late:

  1. Uterine synechae
  2. Sheehan’s syndrome
  3. Secondary Amennorhea
  4. Post Partum depression
  5. Secondary Infertility

PPH PREVENTIVE MEASURES

Regular  ANC: Identification of high risk cases

Skilled Birth Attendants

Antepartum correction of anaemia

Delivery in hospital with facility for Emergency Obstetric Care.

Availability of functional Ambulances to transfer high risk cases to higher level of care facility

Local/Regional anaesthesia in place of halogenated GA, as appropriate

Active management of 3rd stage of labour

4th Stage of labour – Observation, Oxytocin infusion postpartum (as indicated)

RECOMMENDATION

  • Female Education and Empowerment
  • Doctors should be drilled periodically on management of PPH
  • Labour ward nurses should also be trained on the importance of holistic care of immediate post partum patient
  • Primary health centres should be rejuvenated by the government at several levels.

CONCLUSION

Everywoman will experience bleeding after delivery but not all have PPH.

Prevention, early recognition, prompt and appropriate intervention are key to minimize the ugly trend of PPH

REFRENCES

1.Slide on Management of Post Partum Haemorrhage by Dr Archiving consultant obstetrician )

2.Update slide on Trend on Management  of post partum haemorrhage  by Prof John Mulbah, Dr Kingsley Onaji

3.Ben- Charlotte video on thmangeagement of post partum haemorrhage

4.Comprehensive  Obstetrics  In The Tropics Textbook (second edition)

5.Basic Steps  in Obstetrics & Gynaecological Procedures  Textbook  by O.L. Lavant et. al; 2017

6.OBGYN STEP BY STEP; A Concise guide to cases and procedures in Obstetrics And  Gynaecology  by O.U.j Umeora et. al.

7.https://www.who.int/news/item/09-05-2023-lifesaving-solution-dramatically-reduces-severe-bleeding-after-childbirth

Causes of PPH