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Shoulder dystocia

Shoulder dystocia. Abdulkareem Fayoumi. OBJECTIVES :. Definition . Incidence . Consequences . Risk factors . Management. Definition. A head-to-body delivery time > 60 seconds due to impaction of the shoulder ( anterior )against the symphsis pubis. Williams Ob

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Shoulder dystocia

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  1. Shoulder dystocia Abdulkareem Fayoumi

  2. OBJECTIVES : • Definition . • Incidence . • Consequences . • Risk factors . • Management.

  3. Definition • A head-to-body delivery time > 60 seconds due to impaction of the shoulder ( anterior )against the symphsis pubis. Williams Ob • Use of any of the obstetric maneuvers to release the shoulder after gentle downward traction has failed. RCOG ,2005

  4. Mean time of N delivery  24 sec. • Mean time of delivery with dystocia  79 sec.

  5. Incidence • 0.6 – 1.4 % ( defenition,population and weight ).

  6. Why is it important? • An obstetric emergency. • Increased maternal morbidity. • Increased fetal morbidity & mortality .

  7. Maternal impact : • PPH ; 11 % - atony -soft tissue trauma ; 3rd & 4th degree tears 3.8% • Symphyseal diathesis ( rare ) • Uterine rupture ( rare )

  8. Fetal impact : • Fetal injury ; - brachial plexus injury 4-16 % . - fractures of clavicle and humerus . • Fetal hypoxia ; - neurological damage . - death .

  9. Brachial plexus injury 4-6 % . Due to downward traction on the neck . Most important fetal effect . Most common cause for litigation in SD . Independent of operator experience . GOOD NEWS >80 % of cases have complete resolution by 6-13 months.

  10. Risk Factor : • Fetal : Macrosomia postdate. IUFD Instrumental delivery • Maternal : previous SD. Obesity. Multiparity. DM. short stature. abN pelvic anatomy.

  11. Can it be prevented? NO BUT there is a room for prediction & anticipation.

  12. Also • Good glycmic control. • Control weight gain. • Identifying risk factors.

  13. >50 % of SD cases occur with average weight Babies < 4 kg !!! so always be ready… unpredictable ..unpreventable

  14. Management : • Prepare : • educate/involve the ptn ahead of delivery. • declutter the room . • senior person . • empty the bladder . • STAY CALM !!! • HELPERR

  15. Each step 30-60 Sec • For a total 3- 5 minutes (All Maneuvers) • No indication that any of these maneuvers is superior, they represent a valuable tool to help clinicians take effective steps to relieve impacted shoulder ( Category C ) ACOG..October 1997

  16. Benefits • Increase the size of the bony pelvis • Decrease bisacromial diameter • Change the relation of bisacromial diameter within the bony pelvis .

  17. How to recognize SD? • Prolonged 1st & 2nd stage of labor. • Head bobbing ( turtle sign ), then retracting back in the birth canal. • Minimal downward traction does not affect delivery.

  18. Once recognized… • Do NOT ask the patient to push. • Do NOT apply fundal pressure. ( Grade C ) • Do NOT panic !! RCOG guidelines..December,2005

  19. H Call for help SD drill..team work. documentation.

  20. E Evaluate for Episiotomy Not for all cases ( Grade B ) Before delivery. Helps when applying the maneuvers RCOG guidelines December,2005

  21. L Legs ( McRobert’s ) Safe Simple Effective ( used alone resolves 40 % of SD )

  22. Straighten the sacrum. • Moves the symphsis pubis toward the maternal head frees the impacted shoulder McRobert’s

  23. P Suprapubic Pressure determine the position of the fetal back Initially..continuous Then..in CPR-like rocking motion.

  24. Suprapubic pressure

  25. E Enter=internal Maneuvers : • Rubin • Wood’s Screw

  26. Rubin : • Rubin I : rocking the fetus shoulder from side to side. • Rubin II : reach for the most easily shoulder & push it forward decrease the bisacromial diameter .

  27. Rubin II

  28. Wood’s screw • Rotate the posterior shoulder 180 degrees approach post. Shoulder from front. ant. Shoulder from behind.

  29. Wood’s

  30. If fails… • Reverse wood’s screw posterior shoulder from behind.

  31. R Remove the posterior Arm

  32. Insert a hand in the vagina..flex the elbow sweep arm over the chest Deliver the post. arm

  33. Never grasp / pull on the hand  fractures

  34. R Roll the patient

  35. Might be disorienting for the unfamiliar doctor • Increase the obstetric conjugate by 1.5 cm • Gravity?? Movement itself?? • Same maneuvers can be applied

  36. All fails!! Last resort; • Deliberate clavicular fracture. • Zavenilli maneuver. (tocolysis,replace head->CS ) • Symphysiolotmy. ( risk of UT/SP injury ) • Cleidotomy. ( with a dead fetus ) • Abdominal surgery + hysterotomy ( case reports,same maneuvers )

  37. Take-home messages: • Always be ready and calm while dealing with SD. • Know your HELPERR • Always document ( time , manuevers used, duration, involved arm )

  38. Now …we will move to practice plz!! Thank you!!

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