Case Study: An OB Catastrophe

The following is a case simulation involving a patient initially encountered in Labor and Delivery. While the initial encounter occurred in a specific setting, this particular case will evolve and include transitions to various specialty areas over the healthcare continuum. Specialties Critical Case Study

Updated:  

Case Study Objectives

  1. Present a simulated case as it evolves over time.
  2. Encourage open discussion from nurses that represent a variety of specialties.
  3. Promote learning based on the:
    • details of the case
    • evaluation of the data
    • known interventions in order to provide holistic care
  4. Recognize maternal morbidity and mortality as a serious public health issue facing the world.

Introduction

The initial presentation that will proceed is meant to set the tone for the next set of events that will occur. I would like to preface by saying that this particular part of the case is where I have no actual nursing experience so I encourage colleagues who work in this specialty area to chime in with their responses.

Let's keep this lively, but also make sure we are respectful of each other.  Remember that we work in different hospitals and protocols may be different.  Also, be aware that while the following scenario seems "garden variety", it will get more "exciting" as we move along.

Case Specifics

History / Presentation

EJ is a 32-year old, Gravida 4 Para 2, at 34 weeks and 2 days gestational age. She has no chronic medical problems but admits to current tobacco smoking since age 17.  She says that she has been trying to quit and has cut back her smoking to 2-3 cigarettes a day.  She lives with her husband and two children ages 3 and 5 in a 2-bedroom apartment. 

She receives prenatal care at an urban Federally Qualified Healthcare Center (FQHC).  She previously worked as a server at a restaurant but has become unemployed for a couple of months due to restaurant closures from the coronavirus pandemic.  She has good family support from her parents and her husband, RJ, who is a delivery truck driver.  She is insured through her husband's coverage. 

Today, she called her Women's Health Nurse Practitioner (WHNP) when she experienced a gush of watery fluid from her lady parts while playing with her children.  She was told to come to OB Triage at the nearby Tertiary Medical Center Antepartum Unit.  Upon presentation, she was seen by the OB Triage nurse who found her anxious but well-appearing. 

Vital Signs

  • Temperature: 36.7 degrees C
  • Heart Rate: 84
  • Respiratory Rate: 16
  • Blood Pressure: 112/74
  • O2 Saturation: 96% RA
  • Fetal Heart Rate (FHR): 140

Physical / Pelvic Examination

An OB-Gyn resident saw EJ and performed a physical examination that revealed clear, pale yellow, odorless fluid leaking out of her endocervical canal with pooling in the lady partsl vault.

Diagnostic Studies

The OB-Gyn resident performed ultrasonography which revealed:

  • oligohydramnios
  • a fetus that is small for its age, without birth defects, in no distress
  • a placenta that does not cover the cervix

Recommendation

The OB-Gyn team recommended admission to the Antepartum Unit.

Diagnosis

At this point, EJ's diagnosis seems obvious but you are welcome to state it in your response to the thread.

1 - As EJ's nurse, state some assessment findings that would make you concerned. 

2 - As the nurse in that unit, what laboratory tests and monitoring procedures would you anticipate in this case, and why?

Specializes in ACNP-BC, Adult Critical Care, Cardiology.

This is actually taken from UpToDate re: Propofol as used in Surgery or Procedures:

Breastfeeding is not recommended by the manufacturer. The Academy of Breast Feeding Medicine recommends postponing elective surgery until milk supply and breastfeeding are established. Milk should be expressed ahead of surgery when possible. In general, when the child is healthy and full term, breastfeeding may resume, or milk may be expressed once the mother is awake and in recovery. For children who are at risk for apnea, hypotension, or hypotonia, milk may be saved for later use when the child is at lower risk (ABM [Reece-Stremtan 2017]).

On 9/6/2020 at 8:56 PM, juan de la cruz said:

Next steps?

I would like to delve deeper on EJ's ICU management but I'm hoping for responses from the ICU nurses. BTW, if this wasn't such a classic AFE, what other things could have happened?

Hi! Hopping in here as I find these case studies interesting ? 

Total shot in the dark here (and I'm not sure if I missed someone else suggesting it as I skimmed the other responses), but is it possible that her chronic smoking hx has impact here?  Pregnancy makes the blood more hypercoaguable, and cigarette smoking already places an increased risk of blood clotting.  Could she have had previously-developed DVTs that went unnoticed and broke off and traveled elsewhere I.e. the infarcts in the brain and liver?  

Specializes in ACNP-BC, Adult Critical Care, Cardiology.
On 9/8/2020 at 1:43 PM, Mavnurse17 said:

Hi! Hopping in here as I find these case studies interesting ? 

Total shot in the dark here (and I'm not sure if I missed someone else suggesting it as I skimmed the other responses), but is it possible that her chronic smoking hx has impact here?  Pregnancy makes the blood more hypercoaguable, and cigarette smoking already places an increased risk of blood clotting.  Could she have had previously-developed DVTs that went unnoticed and broke off and traveled elsewhere I.e. the infarcts in the brain and liver?  

There are sources that list AFE risk factors. However, the condition is so rare and not well understood aside from the accepted theory of an allergic reaction to fetal cells by the mother.  Risk factors are taken from the available case reports to see if there is commonality.  

It is reasonable to think of a PE in a maternal distress situation where there is hemodynamic instability and hypoxemia.  That's actually a good thought and smoking would be a risk factor for thrombogenicity and DVT embolization causing a PE.  Typically PE has characteristic echocardiogram and EKG findings when severe enough to cause cardiovascular collapse.  

S1Q3T3 is a pattern seen in EKG in a percentage of severe PE cases (S wave in lead 1, Q wave in lead 3, TWI in lead 3). It's not obviously always present. Echocardiogram in large enough PE's to cause hemodynamic collapse would show RV strain...makes sense because the RV is trying to pump against a blocked pulmonary artery.  PE would not lead to DIC though.

Nowadays, Point of Care Ultrasound (POCUS) would help tease things out in an arrest situation by looking at the heart.  I think in the case study, a code team would be very bold to stick with PE as high on the differential because the woman is gushing out blood and the treatment for a catastrophic PE is systemic tPA...that would be really scary to give to an exsanguinating patient.

Specializes in OB-Gyn/Primary Care/Ambulatory Leadership.
17 hours ago, juan de la cruz said:

This is actually taken from UpToDate re: Propofol as used in Surgery or Procedures:

Breastfeeding is not recommended by the manufacturer. The Academy of Breast Feeding Medicine recommends postponing elective surgery until milk supply and breastfeeding are established. Milk should be expressed ahead of surgery when possible. In general, when the child is healthy and full term, breastfeeding may resume, or milk may be expressed once the mother is awake and in recovery. For children who are at risk for apnea, hypotension, or hypotonia, milk may be saved for later use when the child is at lower risk (ABM [Reece-Stremtan 2017]).

The manufacturers never recommend breastfeeding while taking their medications. Just saying. ?

I will cite the studies that looked at propofol continuous infusion when I get to work.

13 hours ago, juan de la cruz said:

There are sources that list AFE risk factors. However, the condition is so rare and not well understood aside from the accepted theory of an allergic reaction to fetal cells by the mother.  Risk factors are taken from the available case reports to see if there is commonality.  

It is reasonable to think of a PE in a maternal distress situation where there is hemodynamic instability and hypoxemia.  That's actually a good thought and smoking would be a risk factor for thrombogenicity and DVT embolization causing a PE.  Typically PE has characteristic echocardiogram and EKG findings when severe enough to cause cardiovascular collapse.  

S1Q3T3 is a pattern seen in EKG in a percentage of severe PE cases (S wave in lead 1, Q wave in lead 3, TWI in lead 3). It's not obviously always present. Echocardiogram in large enough PE's to cause hemodynamic collapse would show RV strain...makes sense because the RV is trying to pump against a blocked pulmonary artery.  PE would not lead to DIC though.

Nowadays, Point of Care Ultrasound (POCUS) would help tease things out in an arrest situation by looking at the heart.  I think in the case study, a code team would be very bold to stick with PE as high on the differential because the woman is gushing out blood and the treatment for a catastrophic PE is systemic tPA...that would be really scary to give to an exsanguinating patient.

Great explanation, thank you!  I read through the entire thread and recognize that the dx was AFE, but since you were asking for what could have happened IF that weren't the case, I thought it'd be prudent to at least mention it ?  I'm still a new nurse of 3 years and maternity care is not my specialty.  Thanks for an interesting read and learning opportunity!  Although I'm actually delivering my first baby in 4 months so this didn't help my nerves ?

Specializes in ACNP-BC, Adult Critical Care, Cardiology.
1 hour ago, Mavnurse17 said:

Great explanation, thank you!  I read through the entire thread and recognize that the dx was AFE, but since you were asking for what could have happened IF that weren't the case, I thought it'd be prudent to at least mention it ?  I'm still a new nurse of 3 years and maternity care is not my specialty.  Thanks for an interesting read and learning opportunity!  Although I'm actually delivering my first baby in 4 months so this didn't help my nerves ?

Thanks for skipping through some posts and trying to come up with your own explanations.  That's actually what I like about case studies because I'm forced to use my own reasoning.  Other differentials in this case could be:

Anaphylactic shock- less likely as there were no new agents or drugs introduced, no acute wheezing that preceded, nor throat swelling, shortness of breath, or rash.

High Spinal - another rare Obstetric condition when an epidural catheter migrates or accidentally gets placed higher than T4.  Symptoms are hypotension and bradycardia, even paralysis.  It's less likely here because the patient suddenly coded with no preceding symptoms. Total Spinal is the worst case scenario when the medication enters the intrathecal space and spreads to the brain causing an overdose - this is catastrophic like AFE but also no DIC presentation.

Septic shock - does not present rapidly like AFE and is usually a slow deterioration.  No evidence of source of infection.

Good luck on your pregnancy, these are not very common cases.

Reference:

https://www.wfsahq.org/components/com_virtual_library/media/04acfd1d3d009f68d78dc9c67ac63311-High-Regional-Block-In-Obstetrics--Update-25-2-2009-.pdf

Specializes in Psych, Corrections, Med-Surg, Ambulatory.
On 9/7/2020 at 10:11 AM, JKL33 said:

Sorry: ?.

I hope it is fair to say that others' misunderstandings are somewhat understandable.

I feel really, really stupid. Extremely.

ETA: Although it isn't fun being the ignorant one on this thread, I have found it fascinating and have learned a lot...so thank you to all of you!

You're not the ignorant one on the thread.  The ignorant ones are us lurkers who don't even know enough to weigh in.  I've found this to be an interesting thread.  Luckily for me I'm very comfortable with my stupidity.

I have a massive question...why was the placenta manually removed at all?  That is very important because the overwhelming majority of PPHs are preventable and caused my mismanagement of third stage labor.  

If the placenta was inappropriately removed (and just because it was manually removed, doesn't mean it was necessary) that provider action could have easily caused the catastrophic cascade that followed because they were too impatient to wait.  

Also....manual removal of the placenta is a huge risk factor for AFE.  That's why you don't rush the process unless it's truly retained.  

Specializes in ACNP-BC, Adult Critical Care, Cardiology.
5 hours ago, Jory said:

I have a massive question...why was the placenta manually removed at all?  That is very important because the overwhelming majority of PPHs are preventable and caused my mismanagement of third stage labor.  

If the placenta was inappropriately removed (and just because it was manually removed, doesn't mean it was necessary) that provider action could have easily caused the catastrophic cascade that followed because they were too impatient to wait.  

Since this was a hypothetical case, I added that detail to illuminate that manual extraction of the placenta is an AFE risk.  Thanks for pointing that out.  I had a recent AFE case in the ICU and the circumstances were entirely different if not more tragic but the outcome was good for the patient.

6 hours ago, juan de la cruz said:

Since this was a hypothetical case, I added that detail to illuminate that manual extraction of the placenta is an AFE risk.  Thanks for pointing that out.  I had a recent AFE case in the ICU and the circumstances were entirely different if not more tragic but the outcome was good for the patient.

We have had our differences but you did a great job with this presentation.  Well done.

Specializes in ACNP-BC, Adult Critical Care, Cardiology.

Thanks to all who responded to this thread.  I do want to recommend for those who deal with high risk OB and ICU nurses who occasionally care for critically-ill OB patients that the Society of Critical Care Medicine (SCCM) offers a Fundamental Critical Care Support: Obstetrics (FCCS: OB) course. 

I took this multidisciplinary course last year (with OB and MFM attendings, MFM fellows, OB residents, Intensivists, Critical Care fellows, OB anesthesiologists, L&D nurses, ICU nurses, etc).  Having taken the General FCCS course in the past, this one is harder in my opinion.

https://www.sccm.org/Fundamentals/FCCS-Obstetrics