VITEBSK STATE MEDICAL UNIVERCITY GENERAL SURGERY DEPARTMENT
Haemorrhage ACUTE BLOOD LOSS LECTURE № 3
Haemorrhage - is blood escape from blood vessels as a result of its damage or alteration of vessel wall transmissivity . Haemorrhage
External hemorrage Extravasation Petechia Purpura Ecchymosis Hematoma Types of hemorrage
Petechia - is a small (1-2mm) red or purple spot on the body, caused by a minor hemorrhage (broken capillary blood vessels)
Purpura is the appearance of red or purple discolorations on the skin that do not blanch on applying pressure. They are caused by bleeding underneath the skin. Purpura measure 0.3–1 cm (3–10 mm), whereas petechiae measure less than 3 mm
Ecchymosis is the medical term for a subcutaneous purpura larger than 1 centimeter or a hematoma, commonly called a bruise. It can be located in the skin or in a mucous membrane.
Hematoma – is a boardered amount of blood in tissues as a result of their dissection with blood pressure .
Physiological ( menses ) Pathological Classification
By mechanism As a result of mechanical damage of vessels ( haemorrhagia per rhe х in ) Arrosive ( haemorrhagia per diabrosin ) – for example in case of stomach ulcer Diapedesic ( haemorrhagia per diapedesin ) Classification
Mechanical damage of vessels ( haemorrhagia per rhe х in )
Arrosive hemorrage ( haemorrhagia per diabrosin )-
Diapedesic hemorrage ( haemorrhagia per diapedesin ) in case of increased vessel transmissivity, changes of blood chemistry or coagulation/antycoagulation system
According to the time primary ; secondary - early - late Classification
Accordin to severity Mild ; Medium ; Severe . For clinical aims hemarrage may be classified as: Stopped hemorrage ; On going hemorrage . Classification
Main risk of any hemorrage is the acute bloodloss Second risk factor is an internal organs compromise Third risk factor is infection. COMPLICATIONS AND OUTCOMES
Main risk of any hemorrage is the acute bloodloss Causes of death: Acute circulatory collaps Functional blood compromise Acute bloodloss of 30% of circulating blood extremly lifethreating condition. Acute loss of 40% of circulating blood is fatal )
Hemorrage rate ; Vessel type and diameter ; Coagulation state Outcomes offering factors
Third risk factor is infection: blood an excellent substrate for bacterial growth .
In acute hemorrage love organism mobilize all systems to maintain own vitality. Organism reaction on acute hemorrage
Vessel wall contraction ; Activation of coagulative system ; Cardiovascular response . Hemorrhage arrest offering factors
80% of blood circulate in vessels, whereas other 20 % contained in the parenchymatous organs . Veins contains 70-80% of circulating blood , arteries contains about 15-20% and only 5-7,5% lodged in capillary . Blood cells compose about 40-45% of circulating blood and the serum is all the rest Circulating blood
1. Is there are any ongoing hemorrhage ? 2. If there are no ongoing bleeding, does it happened at last ? 3. Does hemorrhage stopped or still goin? 4. Where is the source ? 5. If you are dealing with arrested hemorrahage? Do you have safe hemostasis? 6 . Assess the volume of the hemorrhage. 7 . Which disorders appeared as a result of bloodloss ? Diagnostic aims
Subjective ( weakness, blinking, buzzing in the ears, nausea) Objective ( conciousness , pallor , heart rate , respiration rate, BP , CVP ). General symptoms of hemorrhage
Bleeding Altered blood discharge Symptoms and signs of organ dysfunction Symptoms of blood accumulation . Local symptoms of hemorrhage
Bronchoscopy
Nasogastric tubing and oesophagogastroscopy
Flexible colonoscopy
Red cells count Hb Ht Lab tests
Способ определения Мужчина Женщина Volume to the 1 m 2 of body surface 2, 8 2, 4 l % of body weight 7, 5 % 6,5 % ml/kg of body weight 70 ml/kg 65 ml/kg Calculation method Male Female 2, 8 l 2, 4 7, 5 % 70 65 Calculation of circulating blood volume
Direct assessment Indirect assessment Assessement of hemorrhage volume
Algover ratio is a ratio of heart rate to systolic BP Algover ratio Volume of hemorrhage as % of circulating blood 0, 8 and less 10 0, 9-1, 2 20 1, 3-1, 4 30 1, 5 and more 40 and more Algover ratio
Severity of blood loss Clinical sings Volume of blood loss Mild In general patient seems to be stable: his alert, slightly pale. Heart rate less then 100 per min. < 20 % of circulating blood Medium Patient is apparent pale, there are sings of hemorrhagic collaps with single loss of consciousness. Heart rate more then 100 per min. Systolic BP decreased to 90 mm. Hg. 25-30 % of circulating blood Severe Patient is critically ill, unconscious, weak, pallor, cold sweat, thirst, Heart rate 130-140 per min. Pulse weak or not found, systolic BP less then 70 mm. Hg. > 30 % of circulating blood Assessment of hemorrhage volume
Primary care for bleeding patient 1. Hemostasis . 2. Fluid resuscistation / blood replacement .
Methods of temporary hemostasis ; Methods of permanent hemostasis . Methods of hemostasis
Finger compression of artery ; Flexion or lifting of the limb ; Applying of compressive bandage ; Wound tamponade ; Applying of tourniquet ; Applying of stump on the bleeding vessel ; Temporary bypass . Methods of temporary hemostasis
Finger compression of artery
Flexion or lifting of the limb
Applying of compressive bandage
Applying of tourniquet
Arrest of the hemorrhage . Absence of arterial pulse distally from the tourniquet . Pale skin distally from the tourniquet . Assesment of effectivness
Twisting and squeezing of the vessel . Ligation og the vessel . 1. ligation in the wound ; 2. ligation in proximal region . Stiching the vessel . Vascular suture and vessel reconstruction . Tamponade . Vessel embolisation . Organ resection or removing . Usage of obturator-devices . Mechanical methods of permanent haemostasis
Mechanical methods
Usage of obturator-devices in esophageal varicosity bleeding
Low temperature applying . High temperature applying (electric or laser coatermy) . Ultrasaund coagaltion (Ligasure) Physical methods
Localy active medicine 1. H 2 O 2 . 2. Aminocapronic acid 3. Medicines of gelatin 4. Soluble hemostatic materials 5. Epinephrin 6. wax . Chemical methods