Post-Partum Haemorrhage

Postpartum hemorrhage that occurs within the first 24 hours of delivery is called as primary postpartum hemorrhage. The main causes of primary postpartum haemorrhage are:

• Uterine atony (TONE)
• Retained placental fragments (TISSUE)
• Lower genital tract lacerations (TRAUMA)
• Uterine rupture (Click here to read more)
• Uterine inversion (requires repair under general anesthesia)
• Hereditary coagulopathy (THROMBIN)

Secondary postpartum hemorrhage occurs after the first 24 hours and up to 6 weeks postpartum. Common causes of secondary postpartum haemorrhage are:

• Failure of the uterine lining to sub-involute at the former placental site
• Retained placental tissue
• Genital tract wounds
• Uterogenital infection

Causes can be remembered as TONE, TISSUE, TRAUMA, THROMBIN

Risk Factors fro PPH

• Primipara or Grandmultipara 
• Previous PPH
• Pre-eclampsia
• Prior CS
• Placenta Previa
• Cervical or Uterine trauma
• Fetal Wt >4.5Kgs
• Prolonged 3rd stage

Excessive blood loss in the postpartum period is defined as a 10% drop in the hematocrit, a need for transfusion of packed red blood cells, or volume loss that causes symptoms of hypovolemia. The hematologic changes of pregnancy can mask the typical symptoms of hemorrhage, and the first sign may be only a mild increase in pulse rate.

Resuscitation

• ABC
• IV Access x 2
• Fluid Resuscitation 
• Involve OBGYN ASAP
• Keep them warm (Prevent the deadly triad of hypothermia, coagulopathy and acidosis)
• Bimanual uterine massage - place a fist in the anterior fornix and compress the uterine fundus against the hand in a suprapubic location 
• Uterotonics 

Oxytocin: 10U IM or 20-40 units in NS over 1 hour 

Carboprost: 250mcg IM q30min (up to 2mg if needed), Avoid in HTN, Asthma

Misoprostol: 1000mcg PR

Methylergonovine: 0.2mg IM (up to 5 doses q2-4h), Contraindicated in HTN/Pre-eclampsia

• Consider Tranexamic Acid for critically ill 
• Look for evidence of trauma, uterine inversion and uterine rupture
• Inspect for missing placenta fragments 
• Arrange blood products (Packed Cells, FFP and Cryo if in DIC)
• Intrauterine balloon tamponade using Bakri balloon or Rusch catheter if uterine atony is the only or main cause of haemorrhage
• Move to OR for hysterectomy or Uterine Artery Ligation

Other advanced care methods:

• Interventional Radiology for Uterine Artery Embolisation
• REBOA as a temporary measure 

Take Home:

• Keep them warm (prevent Hypothermia, Coagulopathy and Acidosis)
• Remember the 4 causes - TONE, TISSUE, TRAUMA, THROMBIN
• Involve OBGYN ASAP

References and Further Reading:

1. Tintinai EM 8th edition
2. Shakur H, Elbourne D, Gülmezoglu M, Alfirevic Z, Ronsmans C, Allen E, Roberts I. The WOMAN Trial (World Maternal Antifibrinolytic Trial): tranexamic acid for the treatment of postpartum haemorrhage: an international randomised, double blind placebo controlled trial. Trials. 2010 Apr 16;11(1):40.
3. https://www.rcog.org.uk/en/guidelines-research-services/guidelines/gtg52/

Posted by:

              

     Lakshay Chanana

     

     Speciality Doctor

     Northwick Park Hospital

     Department of Emergency Medicine

     England

     @EMDidactic

Renal Colic

Acute Pain is one of the key reasons why patients present to Emergency Department and we should be experts at managing any sort of acute pain. Renal Colic is one such pathology that presents with sudden onset intermittent severe crampy flank pain a/w nausea and vomiting. NSAIDs are the drugs of choice as they inhibit prostaglandin synthesis and result in relaxation of ureteral spasm and decrease of renal capsular distension and associated pain. Here is a quick review of Renal Colic:

Risk Factors for Renal Stones

• Obesity
• Diabetes
• Metabolic Abnormalities
• Hyperparathyroidism
• Immobilisation
• Excess intake of meat and Na
• Gout
• Inflammatory Bowel Disease
• Family History

Up to 15-30% patients with Nephrolithiasis may not show blood in urine. Do not exclude tis diagnosis based on the absence of hematuria. 

Things that you should not miss (Mimics):

• Dissection/Aneurysm (most common misdiagnosis given to patients with a rupturing or expanding abdominal aortic aneurysm)
• Renal Infarct
• Pyelonephritis
• Biliary Colic
• Pancreatitis
• Diverticulitis
• Ovarian Torsion
• Ectopic Pregnancy
• Lower Lobe Pneumonia
• Testicular Torsion
• Herpes Zoster

Investigations:

• Urine Dip (look for infection)
• Full Blood Count (WCC is elevated due to stress demargination)
• Uric Acid, CA (Helps in further evaluation as an out-patient)
• Renal Function (Normal creatinine does not rule out obstruction)
• Imaging (CT KUB, Bedside USG, Formal USG) - read more on imaging at aliem
• Beta hCG

Consider adding amylase, LFT, CXR if history or examination findings are atypical. 

Management

• Pain Relief (IM/IV/PR NSAIDs, Opioids, Antispasmodics are of uncertain benefit)
• Anti-emetics (Metocloperamide)
• Medical Expulsion Therapy (No proven benefit. Prescribe only for >5mm distal ureteric stones)
• Antibiotics if febrile, systemically unwell (WCC is elevated due to stress demargination)

IV Fluids do not expedite stone expulsion

Consult Urology in cases of:

• Refractory Pain
• Obstruction and Acute Renal Failure
• Urosepsis
• Advanced age and co-morbidities
• Solitary/Transplanted Kidney
• Pregnancy

Take Home

• Look for risk factors and potential mimics (aortic dissection and renal infarct)
• Do not rule out kidney stones based on the absence of hematuria
• Provide pain relief and arrange follow up 

Further Reading

1. Core EM - Renal Colic
2. REBEL EM - Does Use of Tamsulosin in Renal Colic Facilitate Stone Passage?
3. Golzari, S. E., Soleimanpour, H., Rahmani, F., Zamani Mehr, N., Safari, S., Heshmat, Y., & Ebrahimi Bakhtavar, H. (2014). Therapeutic Approaches for Renal Colic in the Emergency Department: A Review Article. Anesthesiology and Pain Medicine, 4(1), e16222. http://doi.org/10.5812/aapm.16222
4. Stewart A, Joyce A. Modern management of renal colic. Trends in Urology & Men's Health. 2008 May 1;13(3):14-7.

Posted by:

              

     Lakshay Chanana

     

     Speciality Doctor

     Northwick Park Hospital

     Department of Emergency Medicine

     England

     @EMDidactic

ED Dementia Screening

Dementia

Diagnosing dementia constitutes "memory loss" in addition to one of the following:

• Apraxia (difficulty executing motor tasks)
• Aphasia (language impairment)
• Agnosia (difficulty recognising familiar objects)
• Loss of executive function (planning, organising)

More than 50% of the patients presenting to Emergency Department have dementia and in about 3/4 the of the patients, the diagnosis is not yet established. Patients with a new diagnosis of dementia may have several implications on continuation of care as dementia can be associated with poor drug compliance, self-neglect, depression, suicidal risk. It is paramount to discuss these concerns with social services prior to discharging these patients. 

Mini-Cog Assessment 

1. Ask the patient to repeat and then remember 3 unrelated words (ex. apple table tree)
2. Give the patient a piece of paper with a circle on it
3. Instruct the patient to place numbers on it to represent the face of a clock. After the patient puts the numbers on the clock face, ask him to draw the hands of the clock to read any specific time
4. Ask the patient to repeat the 3 previously presented words

Scoring Mini-Cog Assessment (Minimum score 0, Maximum 3)

Give 1 point for each recalled word 

• 0 - positive screen for dementia
• 1 or 2 with an abnormal clock -  positive screen for dementia
• 1 or 2 with a normal clock - negative screen for dementia
• 3 - negative screen for dementia

Patients who are called "poor historians" often have underlying dementia. If you suspect dementia in ED, then arrange follow up care with Neurology for thorough assessment. 

Discharge checklist for Dementia-

• Ask them their home address and how will they get there?
• Sucidal Thoughts/Depression screen? 
• Carers/Next of kin informed?

Further Reading:

Borson, S., Scanlan, J. M., Chen, P. and Ganguli, M. (2003), The Mini-Cog as a Screen for Dementia: Validation in a Population-Based Sample. Journal of the American Geriatrics Society, 51: 1451–1454. doi:10.1046/j.1532-5415.2003.51465.

Posted by:

              

     Lakshay Chanana

     

     Speciality Doctor

     Northwick Park Hospital

     Department of Emergency Medicine

     England

     @EMDidactic

Acute Abdomen in Elderly

Working up an elderly population presenting with abdominal pain is always a challenging task. Almost always there are chances of potential mishaps due to delayed or missed diagnosis. Data suggests that abdominal pain is the most common ED presentation and the fourth most common complaint among elderly and nearly half of elderly patients with abdominal pain will require admission, and 1/3 will require  a surgical intervention. This makes it an important topic for us to be familiar with. Usual issues related to geriatric population (pharmacologic, social, cognitive) make evaluation extremely difficult. Click here to read more about how is elderly population different.

 

Key Issues:

• Present later in their disease course
• Present with vague symptoms (Only 1/6 present with textbook appendicitis presentation)
• Difficult Communication (hearing, visual, cognitive)
• Underreport symptoms (Poor pain perception, fear of hospitals and medical interventions)
• Physical exam has limited utility - Atrophy of abdominal wall musculature diminishes rebound and guarding
• Medications blunt or alter their response to disease
• Less likely to develop fever or leukocytosis

In A&E, we should have a low threshold to image elderly due to high likelihood of surgical illness and unreliable physical examination. Ideally, CT is the imaging of choice. Plain films are of limited utility. Due to unreliable history, misleading examination findings and unpredictable nature and course of the illness, admission for observation should be considered if no confusion is reached after ED work up. . 

Common Geriatric Abdomen Pathologies

Mesenteric Ischemia

• Risk factors include Atrial Fibrillation, Heart Failure. 
• Pain out of proportion to examination. Perform a quick assessment and come up with a plan. Involve your Surgical colleagues and Radiologists ASAP.
• May present with normal vital signs and laboratory values. Do not overly on White cell count and lactate. Lactate and EBC both are non-specific. 
• Imaging of choice is CT with IV contrast.
•  Rx them with Pain Relief, Fluids and electrolytes, NG Tube for gut decompression, Foleys Catheterisation , Broad Spectrum Antibiotics and immediate surgical consultation. 

Aortic Diseases (AAA, Dissection)

• Be cautious whenever you attribute flank/abdo pain to Renal Stones in elderly.
• AAA May present with weakness, dizziness, uneasiness or syncope
• Classic presentation is pain abdomen, pulsalitle mass and hypotension
• Use bedside USG to measure aorta and also look for a dissecting flap
• Maintain BP enough to perfuse brain and do not give too much fluids
• Arrange blood for transfusion and involve vascular surgeons ASAP

Gall Bladder Disease and Pacreatitis

• Perforation, gangrene, emphysematous cholecystitis, ascending cholangitis, gallstone ileus, choledocholiathisis, and gallstone-induced pancreatitis are all more prevalent 
• More than 50% with acute cholecystitis will lack nausea, vomiting, or fever. Leukocytosis may be absent in 30% to 40% of those with acute cholecystitis.31 Evaluation by ultrasound may be less helpful given the increased prevalence of acalculous cholecystitis as well as cholodocolithiasis and delay in surgery may result in an increased mortality.
• More than 50% cases pancreatitis and elderly are due to Gall Stones. 

Small Bowel Obstruction

• Classical symptoms are not seen early in the course of disease
• May present with diarrhoea due to hyperperistalsis distal to the obstruction point
• Gallstone disease may contribute to 25% of bowel obstructions in elderly

Diverticulitis

• Diverticular bleeding is one of the most common causes of lower GI bleeds
• Acute diverticulitis occurs when the diverticula become obstructed by fecal matter, resulting in lymphatic obstruction, inflammation, and perforation. 
• Usually presents with LLQ pain, with or without bloody stools, nausea, and fever but 1/3rd of the geriatric presentations of acute diverticulitis do not have abdominal tenderness on examination. Once the acute phase resolves, endoscopy should be performed to rule out carcinoma after an acute episode of diverticulitis. 
• Most can be managed medically, with antibiotics, intravenous fluids, and bowel rest. If there are larger perforations or abscess formation, surgery or percutaneous drainage may be indicated.

Large Bowel Obstruction

• Common causes are diverticulosis and malignancy. 
• Classically present with abdominal pain, vomiting, and constipation/obstipation, 
• Often diagnosed late in their course 
• Sigmoid and cecal volvulus account for a smaller subset of large-bowel obstructions, but more often requires emergent surgical intervention. 
• Sigmoid volvulus, causing close to 80% of volvuli, causes a more gradual onset of pain, whereas cecal volvulus presents more acutely.
• Sigmoid volvulus can often be decompressed with a rectal tube, sigmoidoscope, or barium enema, whereas cecal volvulus requires surgical repair. Volvulus of either site is at risk for perforation and should be decompressed urgently. 
• Functional impairment and decreased motility of the GI tract can lead to acute colonic pseudo-obstruction, or Ogilvie syndrome i.e. functional obstruction of the GI tract. This is more commonly seen in elderly and debilitated patients. Treatment is conservative medical management. Neostigmine can be very effective but requires careful monitoring due to potential of bradycardia. 

Constipation

• May be associated with fecal impaction and fecal incontinence. Fecal impaction can cause mucosal ulceration, bleeding, and anemia. 
• Often caused by Medications, comorbidities, inactivity, and decreased gastric-emptying time and GI malignancies 
• Perform a rectal examination should be performed on all patients with constipation to rule out mechanical obstruction of stool.
• Treat chronic constipation with dietary and activity changes, followed by bulk laxatives and warm water enema

Malignancy

• Ask for h/o unintentional weight loss, night sweats, and fatigue, hematuria, hematochezia. 
• May also present with peritonitis, ascites, perforation, obstruction, or abdominal mass

Appendicitis

• Difficult to diagnose in elderly patient and missed in more than 50% cases. The classic presentation is rarely seen. Literature now supports the use of non-contrast CT imaging for suspected appendicitis.
• Elderly have a higher risk for mortality and morbidity following appendectomy. 

Extra-Abdominal Causes

• Congestive heart failure
• Acute Coronary Syndromes
• Pneumonia, Pulmonary embolism
• Prostatitis 
• Urinary retention/infection (antihistamines, anticholinergics, technical obstruction, Pyelonephritis)
• Herpes zoster involving thoracic dermatomes 
• Rectus sheath hepatomas if they are on anticoagulants

Take Home

• Think of Vascular causes of pain abdomen in elderly (AAA, Dissection, Bowel Ischemia)
• GB disease (Cholecystitis, Cholangitis, Pancreatitis) and Bowel Obstruction are common in geriatric population
• Do a rectal exam to assess prostate, look for blood/malena
• Do a broad work up including lab tests and have a low threshold for imaging and admission for observation

Further Raeding: 
Leuthauser A, McVane B. Abdominal pain in the geriatric patient. Emergency Medicine Clinics. 2016 May 1;34(2):363-75.


Posted by:

              

     Lakshay Chanana

     

     Speciality Doctor

     Northwick Park Hospital

     Department of Emergency Medicine

     England

     @EMDidactic