8. Surgical knots .......................................................................................................................................................... 37
8.1. Types of surgical knots ........................................................................................................................... 37
8.2. Two-handed knots .................................................................................................................................. 37
8.2.1. Reef knot or sailor’s knot .................................................................................................... 37
8.2.2. Surgeon’s knot ...................................................................................................................... 38
8.2.3. Viennese knot ....................................................................................................................... 39
8.2.4. Instrument tie ....................................................................................................................... 40
8.3. Knotting under special circumstances ................................................................................................40
8.3.1. Knotting close to the surface ..............................................................................................40
8.3.2. Tying under tension ............................................................................................................. 41
8.3.3. Tying knots in cavities ........................................................................................................ 41
9. Wound closure in separate layers ......................................................................................................................... 42
9.1. Approximation of tissues in the depths ...............................................................................................42
9.2. Closure of the subcutis ...........................................................................................................................42
9.3. Skin stitches .............................................................................................................................................42
10. Drainage ................................................................................................................................................................. 42
10.1. Passive drainage ...................................................................................................................................... 42
10.2. Active drainage (with negative pressure): open, open-closed and closed tube systems ............ 43
10.3. Important localizations of drainage ................................................................................................... 44
10.4. Drain removal ........................................................................................................................................ 44
V. e operation ...........................................................................................................................45
1. Basic surgical interventions ................................................................................................................................... 45
2. Preparations for an operation ................................................................................................................................ 45
3. Informed consent .................................................................................................................................................... 45
4. Operative risk .......................................................................................................................................................... 46
4.1. Acute risk factors in surgery .................................................................................................................. 46
4.2. Chronic risk factors in surgery ............................................................................................................. 46
5. Preoperative management ..................................................................................................................................... 46
5.1. Evaluation of preoperative investigations ............................................................................................ 47
6. e preoperative preparation ................................................................................................................................ 47
7. Postoperative complication ................................................................................................................................... 47
7.1. Complications of anesthesia ................................................................................................................... 47
7.2. Complications depending on the time of occurrence ....................................................................... 47
7.2.1. Intraoperative complications ............................................................................................... 47
7.2.2. Postoperative complications .............................................................................................. 47
7.2.2.1. Postoperative fever ..............................................................................................48
7.2.2.2. Complications of wound healing .................................................................... 48
7.2.2.3. Postoperative nausea and vomiting ................................................................ 49
7.3. Complications associated with the operative field ............................................................................. 49
8. Minor surgery .......................................................................................................................................................... 49
8.1. A short historical survey of local anesthesia ....................................................................................... 49
8.2. Local anesthetic drugs ............................................................................................................................ 49
8.2.1. Main classes, the “I” rule and the dangers of local anesthesia ...................................... 50
8.2.2. Dosage of local anesthetics and duration of anesthesia ................................................ 50
8.3. Main types ................................................................................................................................................ 50
VI. e perioperative period ........................................................................................................51
1. General preoperative preparation ........................................................................................................................ 51
1.1. Rules, interventions ................................................................................................................................. 51
1.2. Medication ................................................................................................................................................ 51
1.3. Instruments .............................................................................................................................................. 51
2. Special preoperative preparation .......................................................................................................................... 51
2.1. Depending on the type of the operation .............................................................................................. 51
2.2. Preoperative preparation depending on the (organ) system ........................................................... 51
3. e perioperative fluid balance ............................................................................................................................. 52
3.1. General rules ............................................................................................................................................ 52
3.2. Perioperative fluid requirements .......................................................................................................... 52
4. Intravenous fluids ................................................................................................................................................... 53
4.1. Crystalloids ............................................................................................................................................... 53
4.2. Colloids ..................................................................................................................................................... 53
5. Perioperative fluid therapy in practice ................................................................................................................54
6. Clinical evaluation of the effectiveness of fluid replacement ........................................................................... 54
7. Tools of volume correction: injections, cannulas, tubes ................................................................................... 55
8. Types of injection techniques ................................................................................................................................. 56
8.1. Intracutaneous (ic.) injection .................................................................................................................. 56
8.2. Subcutaneous (sc.) injection .................................................................................................................. 56
8.3. Intramuscular (im.) injection ................................................................................................................ 56
8.4. Intravenous (iv.) injection ..................................................................................................................... 57
SURGICAL TECHNIQUES
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TABLE OF CONTENTS