anesthetic management of a patient requiring placement of a y- stent presented by 林起翎...
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Anesthetic management of a patient requiring placement of a Y- stent
Presented by 林起翎 蔡鵠遠 戴家煌
Brief History
呂 xx, 61 y/o, male
Persistent dry cough since 3 yrs ago. Dyspnea and wheezing on left side down.
Tuberculosis was diagnosed at 署立新竹H. He started to receive regular medical therapy.
CXR showed a granuloma at LUL on OPD follow-up in Aug. 2001.
He was transferred to Dr. 李元麒‘ s OPD in Oct. 2001.
Echo-guide biopsy was performed. Pathology report revealed tuberculosis.
Sputum culture yielded “Mycobacterium gordonae” in March, 2002.
Chest CT-scan showed persisted granuloma in May, 2002.
Left main bronchus stenosis was noted. Tracheostomy with left main bronchus dilation was done first on 10/3, 2002.
Stenting for left main bronchus was inserted on 10/21, 2002.
Productive cough with massive sputum was noted after he was discharged on 10/26.
He was admitted again and bronchoscope revealed granulation tissue over distal end of the stent on 11/8.
Arrange Y-stent on 11/11.
Past History
Old MI at 4 years ago
DM(-), HTN(-), other systemic dz.(-)
No known food or drug allergy
Smoking(+), quitted for 3 yrs
Alcohol(-), betel nut(-)
Family history : non-contributory
Previous operation history : tracheostomy and stenting
Physical Examination
Consciousness:clear, E4M6V5, easy-looking
Vital signs:BP=115/75mmHg, HR=68/min, RR=20/min, BTR=37.0℃HEENT:conjunctiva:not pale, sclera:anicteric, pupil:isocoric, prompt light reflex L/R:+/+
Neck:supple, JVE(-), LAP(-), carotid bruit(-), tracheostomy(+)
Chest:L’t side decreased breathing sound
Heart:Regular heart beat, murmur(-), thrill(-), heave(-)
Abdomen:soft and flat, tenderness(-)
Extremities:freely movable, pitting edema(-)
Peripheral pulsation:intact
51.6 kg, 156.4 cm
Laboratory data
Complete Blood Cell Count (91-11-07) RBC:4.09 Hb:12.7 Hct:36.3 HCV:88.8 MCHC:35 PLT:466 WBC:7360
Coagulation Profile (91-11-07) PT:11.8/11.5 PTT:39.8/35.5
Blood Biochemistry (91-11-07) Albumin:4.06 Globulin:3.63 Bilirubin(T):0.3 Bilirubin(D):<0.1
ALP:196 Na:138AST:21 K:3.65ALT:111 Cl:96BUN:10.9 Ca:2.31Creatinine:0.96 Glucose AC:105
EKG: normal sinus rhythm, Q wave at V1~3
CXR: left apical fibrotic change
Anesthesia
IVA
Monitor
EKG , BP , A line , 2 IV line
end-tidal CO2 , pulse oxymeter
Urinary output
Induction:Fentanyl: 1mlPentothal: 250mgAtracurium: 25mg
Xylocaine: 100mgRobinul: 0.2mg
Nitroderm: 1TTSVitacal: 1amp
Maintenance:
IV propofol infusion: 50~100
mg/h
Tube without seal air leakage
no gas anesthesia
ventilation efficiency SaO2 PaCO2
Left bronchial stenosis
Problem
dilated the left main bronchus
check the lesion of left main bronchus
with flexible scope
measure the length to insert Y stent
procedure
Tube without seal air leakage
no gas anesthesia
ventilation efficiency SaO2 PaCO2
Irritation of airway laryngospasm, bronchospasm
HR BP
Problem
Remove the granulation tissue and
blood clot
13mm Y stent insertion by rigid
bronchoscope
Adjust Y stent position via tracheostomy tube under flexible
scope guide
procedure
Apnea: O2 supply via side hole of rigid
bronchoscope
SaO2: 99% 92% in about 5 mins
Irritation of airway laryngospasm, bronchospasm
HR BP : BP up to 180/110
Problem
Blood clot and debris: lower airway
obstruction
Problem
T.B. Poor ventilation efficiency
upper airway leakage lower airway obstruction
Apnea during procedure
Surgical airway manipulation is a strong stimulus resulting in bronchospasm
Blood clot and debris: lower airway obstruction
Major Problems
Discussion
Airway management ventilation laryngospasm and bronchospasm bleeding due to surgical manipulation
Tuberculosis
Ventilation
Intermittent ventilation
Closely monitor
Avoid continuous positive pressure ventilation increased intrathoracic pressure
Laryngospasm
Anesthetic depth should be adjusted
If laryngospasm occursRemove the offending stimulusGive 100% oxygen Increase anesthetic depthSuccinylcholine
Bronchospasm
Intravenous aminophylline or salbutamol
Volatile anesthetic agents and ketamine are also effective bronchodilators
Epinephrine is indicated in life-threatening situations
Bleeding during surgery
Suction
One lung intubation
Anesthesia in patients with TB
Delay elective surgical procedures until no longer considered infectious
Perform tracheal intubation in a negative pressure environment
Place a high efficiency particulate air filter between the Y-connector and mask or tracheal tube
Place bacterial filters on the exhalation limb of the anesthesia delivery circuit
Use a dedicated mechanical ventilator
Postoperative care in an isolation room
Conclusion
O2 saturation
Anesthetic depth
Thank you for your attention!