ABDOMINAL TRAUMA AN OVERVIEW

Views:
 
Category: Education
     
 

Presentation Description

Surgery

Comments

Presentation Transcript

ABDOMINAL TRAUMA : AN OVERVIEW : 

ABDOMINAL TRAUMA : AN OVERVIEW Dr S. Lal MS Associate Professor Department of Surgery ESI PGIMSR New Delhi

Introduction : 

Introduction Abdominal trauma is regularly encountered in the emergency department One of the leading cause of death and disability Identification of serious intra-abdominal injuries is often challenging Many injuries may not manifest during the initial assessment and treatment period

Epidemiology: 

Epidemiology Peak incidence Abdominal Trauma 15 - 30yr More than 1.5 Lac people die every year as a result of injuries by motor vehicle accident , fall, suicide and homicide Injury accounts for 10% of all deaths Estimates indicate that by 2020, 8.4 million people will die yearly. Prevalence: 13%

Types of Abdominal Trauma: 

Types of Abdominal Trauma 1.Blunt Trauma 2.Penetrating Trauma -Stab -Gun shot Injury

M.V. Accidents involving high kinetic energy and acceleration or deceleration forces - 60%

PowerPoint Presentation: 

Direct blow to abdomen - 15% Fall- 6-9%

Blunt Trauma Abdomen (contd.): 

Blunt Trauma Abdomen (contd.) Child Abuse Domestic Violence Iatrogenic injury -Endoscopic /Laparoscopic surgical procedures -Bag-mask ventilations -Inadvertent esophageal intubation -External cardiac compressions -Heimlich manoeuvre

Penetrating Trauma: 

Penetrating Trauma Penetrating abdominal trauma has a slightly higher mortality rate Second most common cause of abdominal injury

Gunshot Injury: 

Gunshot Injury Gunshot and stab wounds combine to cause 95% of penetrating abdominal injuries.

Prehospital Care: 

Prehospital Care The goal of prehospital is to deliver the pt to hospital for definitive care as rapidly as possible. ‘Scoop and Run’ Maintain airway & start I V line Care of spinal cord Communicate to medical control Rapid transport of patient to trauma centre

Initial Assessment and Resuscitation : 

Initial Assessment and Resuscitation Primary survey Identification & treatment of life threatening conditions A irway , with cervical spine precautions B reathing C irculation D isability E xposure

Emergency Care: 

Emergency Care I V fluids Control external bleeding Dressing of wounds Protect eviscerated organs with a sterile dressing Stabilize an impaled object in place Give high flow oxygen Immobilize the patient with a fractured pelvis Keep the patient warm Analgesics

Secondary Survey: 

Secondary Survey General &Systemic Examination-to identify all occult injuries . Special attention to Back, Axilla , Perineum PR - sphincter tone ,bleeding ,perforation , high riding prostate Foley’s catheter- monitor urine out put Nasogastric tube

Secondary Survey(contd.) : 

Secondary Survey(contd.) AMPLE History A : Allergy M : Medications P : Past medical history L : Last meal E : Event - What happened

Examination: 

Examination Laceration Abrasion Entry/Exit wounds Involvement chest & Head injury Seat Belt Sign

Examination: 

Examination Cullen’s Sign : 1918 Bluish discoloration around umbilicus Diffusion of blood along periumbilical tissues or falciform ligament Hemoperitoneum Severe pancreatitis

Examination: 

Examination Grey-Turner’s Sign : (1877-1951) Bluish discoloration of the flanks Retroperitoneal Hematoma hemorrhagic pancreatitis. Kehr’s sign (1862-1916). Referred pain, Right shoulder irritation of the diaphragm (Splenic injury, free air, intra-abdominal bleeding)

Examination : 

Examination Balance’s Sign Dullness on percussion of the left upper quadrant ruptured spleen Labia and Scrotum : Pooling of blood from abdominal and pelvic cavities .

Examination: 

Examination Auscultation :1. Bowel sounds in the thoracic cavity (Diaphragmatic rupture) 2. Haemothorax Palpation: - Mass -Tenderness -Signs of peritonitis -# Ribs -Chest & Pelvic compression test

Investigations : 

Investigations FAST X-Ray Chest & Abdomen USG CT Scan Paracentasis Diagnostic Peritoneal Lavage Diagnostic Laparoscopy

Focused Assessment with Sonography in Trauma (FAST): 

Focused Assessment with Sonography in Trauma (FAST) First used in 1996 Rapid , Accurate Sensitivity 86- 99% Can detect 100 mL of blood Cost effective Four different views- Pericardiac Perihepatic Perisplenic Peripelvic space Eliminates unnecessary CT scans Helps in management plan

Plain X-Ray Chest & Abdomen : 

Plain X-Ray Chest & Abdomen Pneumotharax, Haemothorax Free air under diaphragm Nasogastric tube, bowel loops in the chest Elevation of the both /Single diaphragm Lower Ribs # -Liver /Spleen Injury Ground Glass Appearance – Massive Hemoperitoneum Obliteration of Psoas Shadow –Retroperitoneal Bleeding #vertebra

USG: 

USG Advantage Easy & Early to Diagnose Noninvasive No Radiation Exposure Resuscitation/Emergency room Used in initial Evaluation Low cost Disadvantage . Examiner Dependent Obesity Gas interposition Low Sensitivity for free fluid less 500 mL False –Negative retroperitoneal & Hallow viscus injury

Paracentasis: 

Paracentasis Four quadrant aspiration of abdomen A Positive tap – blood , air , bile stained fluid Negative tap doesn’t rule out injury. False negatives are as high as 22-60%

Diagnostic Peritoneal Lavage : 

Diagnostic Peritoneal Lavage First described in 1965 Rapid & Accurate test used to identify intra-abdominal injuries Predictive value of greater than 90% The RBC count for lavage fluid is > 1,00,000/cu m.m . A WBC count > 500/cu m.m . Test is highly sensitive to presence of intraperitoneal blood However specificity is low

Diagnostic Peritoneal Lavage : 

Diagnostic Peritoneal Lavage Indications Unexplained Shock Altered sensorium (Head injury , Drug) General anesthesia for extra-abdominal procedures Contraindications Clear indication for Exploratory Laparotomy Relative - Previous Expl . Laparotomy -Pregnancy -Obesity

CT Scan: 

CT Scan Gold Standard Haemodynamically Stable Provides excellent imaging of pancreas, duodenum and Genitourinary system Standard for detection of solid organs injury. Determines the source and amount of bleeding Can reveal other associated injuries e.g. Vertebral & Pelvic # & injury in the thoracic cavity . High Specificity-95%

CT Scan : 

CT Scan Contraindication: Clear indication for Laparotomy Haemodynamically Unstable Allergy to contrast media

DIAGNOSTIC LAPAROSCOPY : 

DIAGNOSTIC LAPAROSCOPY Haemodynamically stable patients Inadequate/equivocal USG Mild hypotension or persistent tachycardia Persistent abdominal signs/symptoms It decreases non-therapeutic laparotomies Useful in penetrating injury Limitation :Retroperitoneal Injury

Solid Organ Injuries : 

Solid Organ Injuries Grading of injured solid organs such as Spleen, Liver & Kidneys are on the basis of subcapsular hematoma ,capsular tear, parenchymal lacerations & avulsion of vascular pedicle Bleeds significantly and cause rapid blood loss Difficult to identify injury by physical exam Repeated assessment is required to make the diagnosis Slowly oozing blood into peritoneal cavity

SPLENIC INJURY : 

SPLENIC INJURY Most common intra- abdominal organ to injured (40-55%) 20% of splenic injuries due to left lower rib fractures Commonly arterial hemorrhage Conservative management : -Hemodynamic stability - Negative abdominal examination -Absence of contrast extravasation in CT - Absence of other indication of Laprotomy -Grade 1to 3 (Subcapsular Hematoma ,Laceration <3 cm) Monitoring Serial abdo. Examinations & Haematocrit are essential Success rate of conservative m/m is >80%

Splenic Injuries : 

Splenic Injuries Operative Management Capsular tears (I)- Compression & topical haemostatic agent Deep Laceration (II) - Horizontal mattress suture or Splenorrhaphy Major Laceration not involving hilum (IV)- Partial Splenectomy Hillar injury (V)–Total Splenectomy Grade IV-V: almost invariably require operative intervention Success rate of Splenic salvage procedure is 40-60%

Liver injury: 

Liver injury Liver is the largest organ in abdomen 2 nd most common organ injured (35-45%) in BTA Driving and fighting responsible for 50% of deaths due to liver injury Usually venous bleeding 85% of all patients with blunt hepatic trauma are stable CT is the mainstay of diagnosis in stable pt.

Liver Injury : 

Liver Injury 50% liver injury have stop bleeding spontaneously by the time of surgery Non Operative m/m Haemodynamically Stable No other intra-abdominal injury require surgery < 2 units of BT required Hemoperitoneum <500 ml on CT Grade I-III(subcapsular & intr-perenchymal hematoma)

Liver Injury Operative m/m : 

Liver Injury Operative m/m Packing - Bleeding can be stopped by packing of abdomen -Pack removed after 48 hr -haemostatic agents -34 % survival in packing only

Liver Injury Operative Management(Contd.) : 

Suturing: -Simple suture -Deep mattress suture Laceration: -Mesh hepatorrhaphy -Omental flap to cover the laceration - Debridement Lobar Resection Liver Transplantation Ligate or repair damaged blood vessels & bile duct Mortality of liver injury is 10% Liver Injury Operative Management(Contd.)

Pancreatic Injury: 

Pancreatic Injury Rare 10-20% of all abdominal injury Crush , Direct blow to abdo & Seat belt injury Associated with abdo. Duodenal injury, Vascular injury & liver injury Diagnosis – Difficult, High index of suspicion CECT Scan is helpful Serum amylase is a poor indicator Usually diagnose on Laparotomy Distal Pancreatic injury - Distal resection Pancreaticojejunostomy – Injury to Ampulla of Vater, Head & Body of Pancreas

Pancreatic Injury: 

Pancreatic Injury

Renal Injury: 

Renal Injury Clinically not suspected & frequently overlooked Mechanism : Blunt , Penetrating # lower ribs or spinous process, Crush abdominal Pelvic injury Direct blow to flank or back Fall MVA

Renal Injury: 

Renal Injury Diagnosis 1.History ,Clinical examination 2. Presentation :Shock, hematuria & pain 3 . Urine: gross or microscopic hematuria

Renal Injury: 

Renal Injury Diagnosis (contd.) 5.X-ray KUB IVP 7. USG 6.CT Scan abdomen 8. Radionuclide Scan The degree of hematuria may not predict the severity of renal injury

m: 

m

Renal Injury: 

Renal Injury . Classification of Injury Grade I : Contusion or Subcapsular Hematoma Grade II: Non Expanding Hematoma, <1 cm deep ,no extravasation Grade III: Laceration >1cm with urinary Extravasation Grade IV: Parenchymal Laceration deep to CM Junction Grade V: Renovascular injury

Management of Renal Injury: 

Management of Renal Injury About 85% of blunt renal trauma can be manage by conservatively Renal Contusion : Conservatively Renal exploration : Indication Deep cortico-medullary Laceration with extravasation Large perinephric Hematoma Renovascular injury Uncontrolled bleeding Before Nephrectomy ,Contralateral Kidney should be assessed

Diaphragmatic Injury: 

Diaphragmatic Injury Incidence -0.8%-1.6% in BTA High index of suspicion required , may be missed. 40 to 50% are diagnosed immediately Presentation may be delayed Imaging Nasogastric tube seen in the thorax Abdominal contents in the thorax Elevated hemidiaphragm (>4 cm Lt vs Rt ) Distortion of diaphragmatic margin. Lt- 69% , Rt -24% B/L- 15%

Diaphragm Rupture /Hernia: 

Diaphragm Rupture /Hernia S Lal, Y Kailasia , S Chouhan , APS Gaharwar, GP Shrivastava . Delayed presentation of post traumatic diaphragmatic hernia. JSCR 2011. 7:6

Diaphragm Rupture /Hernia: 

Diaphragm Rupture /Hernia S Lal, Y Kailasia , S Chouhan , APS Gaharwar, GP Shrivastava. Delayed presentation of post traumatic diaphragmatic hernia. JSCR 2011. 7:6

Hollow Viscus Injuries : 

Hollow Viscus Injuries Gastric Injury : Penetrating trauma MC Blunt trauma abdomen 1% Causes Penetrating Injury -Crushing Against the Spine -CPR -Vigorous Ventilation with ET Tube in the Esophagus -Heimlich Maneuver Diagnosis : X-Ray chest & Abdomen CT scan Diagnostic Peritoneal Lavage During Surgical Exploration T/t : Expl . Laparotomy with Primary Repair

Hollow Viscus Injuries (Contd.) : 

Hollow Viscus Injuries (Contd.) Duodenum Isolated Duodenum injury rare Incidence - 3-5% Cause :Penetrating injury: mc Steering wheel injury Assault Fall Associated with other intra-abdominal injury Diagnosis: Plan X-ray –Free air in abdomen -Intraoperative diagnosis Rx : Primary Repair 80% case Roux-en –Y duodenojejunostomy 20%

Hollow Viscus Injuries: 

Hollow Viscus Injuries Small Intestine& Colonic Injuries Commonly Injured in Penetrating injury Blunt Trauma - Incidence 5% -20% Mechanism : -Crush Injury -At Fixed point DJ & IC Junction Rx : Exploratory Laprotomy

Bladder Injury: 

Bladder Injury Commonly in BTA 70% of bladder Injury are associated with pelvic fracture . Hematuria Type 1.Extraperitoneal Rupture-by bony fragment 2. Intraperitoneal Rupture- at dome when blow in distended bladder Diagnosis -1. Clinical 2. Cystography T/t 1. Intraperitoneal –trans-peritoneal - closure +SPC 2: Extraperitoneal Rupture : Foley’s catheter -10 -14 days

Ureteral Injury: 

Ureteral Injury Uncommon Mostly occur after penetrating trauma Associated with concomitant intra-abdominal or genitourinary injury Diagnosis -IVP -15-20% Retrograde ureteroscopy - At the time of Laparotomy Operative procedure Proximal & mid ureter -End to end Anastomosis over DJ Stent Distal –Ureteric Reimplantaion

Vascular Injury: 

Vascular Injury Incidence 5-10% Highly lethal. Associated with extremely rapid rates of blood loss Exposure is difficult in Laparotomy Initial Control by digital pressure Heparinized saline (50U/ml) injected in both end of vessel Rx Lateral suture ,End to end Anastomosis & Interposition graft Mortality rate is very high

Trauma in Pregnancy: 

Trauma in Pregnancy Incidence- 10-20% Causes : 1.Domestic violence 2.Sexual Assault 3. Accident Third trimester - mc- balance & coordination disturbed Multidisciplinary team- Obstetrician, surgeon, and neonatologist Peritoneal sign are delayed “Supine hypotensive syndrome” > 20 weeks’ gestation. COMPLICATIONS Fetal Injury & Death –fetoplacental injury, maternal shock, Placental Abruption Rupture of Uterus

Penetrating abdominal trauma: 

Penetrating abdominal trauma Gunshot Stab wound

Penetrating Abdominal Trauma: 

Penetrating Abdominal Trauma Patients with deep penetrating injuries always require surgery Common Organs –Small int.(29%) liver(28%) Colon(23%)

EAST Algorithm: Stable: 

EAST Algorithm: Stable Eastern Association for the Surgery of Trauma, 2001

Penetrating Abdominal Trauma(Contd.): 

Penetrating Abdominal Trauma(Contd.) M ultiple in 20% of cases Most stab wounds do not cause an intraperitoneal injury A complete Laparotomy is mandatory

Penetrating Abdominal Trauma(Contd.): 

Penetrating Abdominal Trauma(Contd.) Abdominal Evisceration

PowerPoint Presentation: 

Stab wound to right lower quadrant with caecal evisceration.  No colon injury at laparotomy

Penetrating Abdominal Trauma(Contd.): 

Penetrating Abdominal Trauma(Contd.) Abdominal Evisceration Never try to replace organs Cover with moist gauze, then sterile dressing. Transport immediately

Gunshot Injury : 

Gunshot Injury Handguns, Rifles, and Shotgun More dangerous than penetrating injury The degree of injury depends . Amount of kinetic energy imparted by the bullet to the victim Mass of the bullet and the square of its velocity Distance . Injury multiple organ

Injury Prevention : 

Injury Prevention 1. Primary : Prevent an injury from its occurrence in the first place: Educational activity such as anti-drink-driving campaigns , speed limit rule -Children should accompanied with parent 2. Secondary : Attempts to lesson the consequences of injury – making road & safer car, anti-locking brakes, air bags , helmets, seat belt 3. Tertiary : Minimize the effect of injury by health care by individuals & system.

Injury Prevention (Contd.) : 

Injury Prevention (Contd.) Speed is a critical factor ; a 10% increase speed translate into a 40% rise in the case fatality rate. Use of seat belt reduces the risk of death or serious injury by 45%. Air Bags reduces the risk of fatal injury by 30% & deaths by 11 %. Children Below 12yrs should be properly restraints in the back seat. Motorcycle experience death rate 35 time greater than car.

Summary: 

Summary Injuries are Preventable Trauma is a massive & growing health burden worldwide ,which increasingly afflicts the young & productive age group. Repeated assessment is required to make the diagnosis Ultrasonography and peritoneal aspiration are rapid methods of determining or excluding the presence of Hemoperitoneum Conservative approach in Liver & Renal Injury Successful m/m of trauma requires integration of Prehospital ,in-hospital ,& rehabilitative care.

PowerPoint Presentation: 

THANK YOU