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Questions and Answers
What is the procedural success threshold for aspiration of gallbladder contents using a 21-gauge needle?
What is the procedural success threshold for aspiration of gallbladder contents using a 21-gauge needle?
- 90%
- 50%
- 80% (correct)
- 95%
A minimum threshold for success rates indicates that a review should be performed when the rates fall below it.
A minimum threshold for success rates indicates that a review should be performed when the rates fall below it.
True (A)
What is the clinical success rate for a single aspiration of gallbladder contents?
What is the clinical success rate for a single aspiration of gallbladder contents?
50%
The technical success rate for cholecystostomy drain placement is ________.
The technical success rate for cholecystostomy drain placement is ________.
Match the following outcomes with their corresponding success rates:
Match the following outcomes with their corresponding success rates:
What is one measure used to evaluate the quality of percutaneous transhepatic cholangiography?
What is one measure used to evaluate the quality of percutaneous transhepatic cholangiography?
Universal thresholds are easy to set for determining the quality of cholecystostomy procedures.
Universal thresholds are easy to set for determining the quality of cholecystostomy procedures.
What factors should be monitored post-procedure to ensure successful patient outcomes?
What factors should be monitored post-procedure to ensure successful patient outcomes?
____ in excess of the defined threshold should trigger policy reviews to improve quality.
____ in excess of the defined threshold should trigger policy reviews to improve quality.
Which complication is specifically associated with the transhepatic approach to biliary access?
Which complication is specifically associated with the transhepatic approach to biliary access?
What is a potential complication that can occur from a transhepatic biliary access procedure?
What is a potential complication that can occur from a transhepatic biliary access procedure?
Which imaging technique is commonly utilized in the assessment of biliary tract interventions?
Which imaging technique is commonly utilized in the assessment of biliary tract interventions?
What is a notable advantage of percutaneous cholecystostomy in high-risk patients?
What is a notable advantage of percutaneous cholecystostomy in high-risk patients?
In the context of urgent biliary procedures, which factor is critical for evaluating the effectiveness of percutaneous interventions?
In the context of urgent biliary procedures, which factor is critical for evaluating the effectiveness of percutaneous interventions?
What is a primary reason for performing percutaneous cholecystostomy in high-risk patients?
What is a primary reason for performing percutaneous cholecystostomy in high-risk patients?
Which method is commonly utilized for biliary access in patients during percutaneous interventional procedures?
Which method is commonly utilized for biliary access in patients during percutaneous interventional procedures?
What is a common complication associated with percutaneous cholecystostomy procedures?
What is a common complication associated with percutaneous cholecystostomy procedures?
In the context of interventional radiology, what is the primary purpose of performing diagnostic imaging of the biliary tract?
In the context of interventional radiology, what is the primary purpose of performing diagnostic imaging of the biliary tract?
What role does a locking trocar play in percutaneous cholecystostomy procedures?
What role does a locking trocar play in percutaneous cholecystostomy procedures?
What is indicated by wall thickening of the gall bladder in ultrasound images?
What is indicated by wall thickening of the gall bladder in ultrasound images?
Which anatomical structures are visualized adjacent to the gall bladder in a typical ultrasound?
Which anatomical structures are visualized adjacent to the gall bladder in a typical ultrasound?
What complication might occur when attempting to access the gall bladder with a dilator?
What complication might occur when attempting to access the gall bladder with a dilator?
During the procedure, which structure could indicate a failure to pass the wire appropriately?
During the procedure, which structure could indicate a failure to pass the wire appropriately?
What does the fluoroscopic caption during a cholecystostomy primarily indicate?
What does the fluoroscopic caption during a cholecystostomy primarily indicate?
What is a key indication for using CT instead of ultrasound in the context of calcular cholecystitis?
What is a key indication for using CT instead of ultrasound in the context of calcular cholecystitis?
When performing a cholecystostomy, what gauge needle is commonly utilized if the operator prefers a low-caliber approach?
When performing a cholecystostomy, what gauge needle is commonly utilized if the operator prefers a low-caliber approach?
What is the first step in the procedure before catheter insertion during a cholecystostomy?
What is the first step in the procedure before catheter insertion during a cholecystostomy?
What role does using a 0.035-inch wire serve after needle placement in a cholecystostomy procedure?
What role does using a 0.035-inch wire serve after needle placement in a cholecystostomy procedure?
Why might an operator prefer using ultrasound over fluoroscopy for the initial stages of cholecystostomy?
Why might an operator prefer using ultrasound over fluoroscopy for the initial stages of cholecystostomy?
What is the first-line treatment for pain management in acute cholecystitis?
What is the first-line treatment for pain management in acute cholecystitis?
Which imaging technique is commonly indicated for diagnosing acute cholecystitis?
Which imaging technique is commonly indicated for diagnosing acute cholecystitis?
What is routinely administered to all patients diagnosed with acute cholecystitis?
What is routinely administered to all patients diagnosed with acute cholecystitis?
What is the primary surgical intervention for treating acute cholecystitis?
What is the primary surgical intervention for treating acute cholecystitis?
Which condition may warrant emergent surgery in patients with acute cholecystitis?
Which condition may warrant emergent surgery in patients with acute cholecystitis?
What imaging finding indicates the possibility of gallbladder gangrene and perforation in acute cholecystitis?
What imaging finding indicates the possibility of gallbladder gangrene and perforation in acute cholecystitis?
What is one of the factors limiting the use of MR imaging for diagnosing acute cholecystitis?
What is one of the factors limiting the use of MR imaging for diagnosing acute cholecystitis?
Which surgical approach has shown a recent trend toward earlier intervention for acute cholecystitis?
Which surgical approach has shown a recent trend toward earlier intervention for acute cholecystitis?
What is a significant complication associated with the treatment of acute cholecystitis using antibiotics?
What is a significant complication associated with the treatment of acute cholecystitis using antibiotics?
In patients with suspected biliary obstruction due to choledocholithiasis, which imaging technique is indicated?
In patients with suspected biliary obstruction due to choledocholithiasis, which imaging technique is indicated?
What should be the target INR before performing a procedure with a high risk of bleeding?
What should be the target INR before performing a procedure with a high risk of bleeding?
Which imaging modality is preferred for cholecystostomy tube placement due to its speed and cost-effectiveness?
Which imaging modality is preferred for cholecystostomy tube placement due to its speed and cost-effectiveness?
Which complication is most commonly associated with procedures involving the gallbladder?
Which complication is most commonly associated with procedures involving the gallbladder?
What is the reasoning behind administrating morphine during cholescintigraphy?
What is the reasoning behind administrating morphine during cholescintigraphy?
When preparing for cholecystostomy, which laboratory investigation is crucial for determining patient stability?
When preparing for cholecystostomy, which laboratory investigation is crucial for determining patient stability?
Which laboratory investigation is essential to rule out complications of acute cholecystitis?
Which laboratory investigation is essential to rule out complications of acute cholecystitis?
What is one serious complication that can occur in acute cholecystitis, affecting mortality rates?
What is one serious complication that can occur in acute cholecystitis, affecting mortality rates?
What diagnostic imaging technique is less sensitive than ultrasound for detecting gallbladder wall thickening in acute cholecystitis?
What diagnostic imaging technique is less sensitive than ultrasound for detecting gallbladder wall thickening in acute cholecystitis?
According to the Tokyo Guidelines, what imaging findings are required to diagnose acute cholecystitis?
According to the Tokyo Guidelines, what imaging findings are required to diagnose acute cholecystitis?
What is the recommended management for Grade I acute cholecystitis according to the updated Tokyo Guidelines?
What is the recommended management for Grade I acute cholecystitis according to the updated Tokyo Guidelines?
What is a primary indication for performing a percutaneous cholecystostomy?
What is a primary indication for performing a percutaneous cholecystostomy?
How do complication rates compare between percutaneous cholecystostomy (PC) and open cholecystectomy for high-risk patients?
How do complication rates compare between percutaneous cholecystostomy (PC) and open cholecystectomy for high-risk patients?
What recent advancement in technique may reduce the necessity for percutaneous cholecystostomy?
What recent advancement in technique may reduce the necessity for percutaneous cholecystostomy?
Which aspect of clinical guidelines for acute cholecystitis remains controversial?
Which aspect of clinical guidelines for acute cholecystitis remains controversial?
How do comorbidities typically influence treatment decisions in patients requiring cholecystostomy?
How do comorbidities typically influence treatment decisions in patients requiring cholecystostomy?
How do complication rates compare between patients treated with percutaneous cholecystostomy and those undergoing cholecystectomy?
How do complication rates compare between patients treated with percutaneous cholecystostomy and those undergoing cholecystectomy?
Which approach is considered first-line treatment for acute calculous cholecystitis?
Which approach is considered first-line treatment for acute calculous cholecystitis?
What is a significant limitation of using retrospective studies in evaluating cholecystostomy efficacy?
What is a significant limitation of using retrospective studies in evaluating cholecystostomy efficacy?
How do comorbidities impact treatment decisions for patients with acute cholecystitis?
How do comorbidities impact treatment decisions for patients with acute cholecystitis?
What was the major finding of the 1994 study regarding the transperitoneal approach for cholecystostomy?
What was the major finding of the 1994 study regarding the transperitoneal approach for cholecystostomy?
In the comparison of approaches studied by Loberant et al., what conclusion was drawn regarding complications?
In the comparison of approaches studied by Loberant et al., what conclusion was drawn regarding complications?
What is a potential patient safety outcome when using the trocar technique for cholecystostomy?
What is a potential patient safety outcome when using the trocar technique for cholecystostomy?
Which coagulation parameter was found to be similar in both groups studied by Garber et al.?
Which coagulation parameter was found to be similar in both groups studied by Garber et al.?
What characteristic is more commonly associated with the trocar technique compared to the Seldinger technique during percutaneous cholecystostomy?
What characteristic is more commonly associated with the trocar technique compared to the Seldinger technique during percutaneous cholecystostomy?
Which complication may arise specifically from the transhepatic approach to biliary access?
Which complication may arise specifically from the transhepatic approach to biliary access?
What significant difference was noted between the trocar and Seldinger techniques regarding post-procedure outcomes in percutaneous cholecystostomy?
What significant difference was noted between the trocar and Seldinger techniques regarding post-procedure outcomes in percutaneous cholecystostomy?
What is a potential complication associated with the trocar technique in interventional radiology?
What is a potential complication associated with the trocar technique in interventional radiology?
In post-procedural care after percutaneous cholecystostomy, which of the following is least likely to be monitored?
In post-procedural care after percutaneous cholecystostomy, which of the following is least likely to be monitored?
What is the primary imaging modality used for planning the insertion route in percutaneous cholecystostomy?
What is the primary imaging modality used for planning the insertion route in percutaneous cholecystostomy?
What is a significant advantage of using color Doppler assessment during percutaneous cholecystostomy?
What is a significant advantage of using color Doppler assessment during percutaneous cholecystostomy?
What is a significant precaution to consider when performing a percutaneous cholecystostomy via the intercostal route?
What is a significant precaution to consider when performing a percutaneous cholecystostomy via the intercostal route?
Which imaging modality is primarily used for percutaneous cholecystostomy when sonographic visualization is poor?
Which imaging modality is primarily used for percutaneous cholecystostomy when sonographic visualization is poor?
What is a potential complication associated with improper catheter placement during percutaneous cholecystostomy?
What is a potential complication associated with improper catheter placement during percutaneous cholecystostomy?
How is a pigtail catheter introduced after initial guidewire placement in a percutaneous cholecystostomy?
How is a pigtail catheter introduced after initial guidewire placement in a percutaneous cholecystostomy?
What is one of the main goals when performing serial dilatation of the percutaneous tract?
What is one of the main goals when performing serial dilatation of the percutaneous tract?
Flashcards
Procedure Threshold
Procedure Threshold
A specific level of an indicator for a procedure, used to assess quality improvement programs.
Quality Improvement Program
Quality Improvement Program
A program to assess and improve the efficacy of procedures
Success Rate Threshold
Success Rate Threshold
A minimum acceptable rate of procedure success (or maximum complication rate)
Percutaneous Cholecystostomy
Percutaneous Cholecystostomy
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Technical Success
Technical Success
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Sepsis incidence
Sepsis incidence
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Threshold for success
Threshold for success
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Why are thresholds variable?
Why are thresholds variable?
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What is the goal of adjusting thresholds?
What is the goal of adjusting thresholds?
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Follow-up after cholecystostomy
Follow-up after cholecystostomy
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Acute Acalculous Cholecystitis
Acute Acalculous Cholecystitis
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High-Risk Surgical Patients
High-Risk Surgical Patients
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Tube Management
Tube Management
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Complications of Cholecystostomy
Complications of Cholecystostomy
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Transhepatic Approach
Transhepatic Approach
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Transperitoneal Approach
Transperitoneal Approach
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Bile Peritonitis
Bile Peritonitis
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Pleural Contamination
Pleural Contamination
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Hemobilia
Hemobilia
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Ultrasound vs. CT
Ultrasound vs. CT
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Upsizing Platform
Upsizing Platform
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Guidewire Placement
Guidewire Placement
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Needle Removal
Needle Removal
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Fluoroscopy's Role
Fluoroscopy's Role
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What is cholecystostomy?
What is cholecystostomy?
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What does percutaneous mean?
What does percutaneous mean?
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What are some risks of cholecystostomy?
What are some risks of cholecystostomy?
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Why is fluoroscopy used during cholecystostomy?
Why is fluoroscopy used during cholecystostomy?
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Why might a patient need a cholecystostomy instead of surgery?
Why might a patient need a cholecystostomy instead of surgery?
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Acute Cholecystitis (AC)
Acute Cholecystitis (AC)
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Cholecystectomy
Cholecystectomy
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Percutaneous Cholecystostomy (PC)
Percutaneous Cholecystostomy (PC)
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When is cholecystectomy necessary?
When is cholecystectomy necessary?
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What is the advantage of cholecystectomy over PC in severe cases?
What is the advantage of cholecystectomy over PC in severe cases?
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Morphine-Augmented Cholescintigraphy
Morphine-Augmented Cholescintigraphy
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CT Rim Sign
CT Rim Sign
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MR Imaging for Acute Cholecystitis
MR Imaging for Acute Cholecystitis
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Interrupted Rim Sign
Interrupted Rim Sign
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MRCP for Bile Duct Stones
MRCP for Bile Duct Stones
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Acute Cholecystitis
Acute Cholecystitis
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What are the Tokyo Guidelines?
What are the Tokyo Guidelines?
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Laparoscopic Cholecystectomy
Laparoscopic Cholecystectomy
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Charlson Comorbidity Index (CCI)
Charlson Comorbidity Index (CCI)
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American Society of Anesthesiologists Physical Status Classification (ASA-PS)
American Society of Anesthesiologists Physical Status Classification (ASA-PS)
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When is cholecystostomy an option?
When is cholecystostomy an option?
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What is the 'CT Rim Sign'?
What is the 'CT Rim Sign'?
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What is the role of morphine in cholescintigraphy?
What is the role of morphine in cholescintigraphy?
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Why is cholecystectomy recommended over PC for severe cases?
Why is cholecystectomy recommended over PC for severe cases?
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What are some common anatomic considerations for cholecystostomy?
What are some common anatomic considerations for cholecystostomy?
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Cholecystostomy (PC)
Cholecystostomy (PC)
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High-Risk Patients
High-Risk Patients
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Emergent Cholecystectomy
Emergent Cholecystectomy
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When is PC preferred over surgery?
When is PC preferred over surgery?
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Cholecystostomy's role
Cholecystostomy's role
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Cholecystostomy recurrence rate
Cholecystostomy recurrence rate
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Why is cholecystectomy preferred?
Why is cholecystectomy preferred?
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Evidence for cholecystostomy
Evidence for cholecystostomy
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Cholecystostomy's limitations
Cholecystostomy's limitations
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What are the potential complications of cholecystostomy?
What are the potential complications of cholecystostomy?
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Why is cholecystostomy often used for high-risk patients?
Why is cholecystostomy often used for high-risk patients?
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What are some studies on the safety of cholecystostomy?
What are some studies on the safety of cholecystostomy?
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Trocar vs. Seldinger Technique
Trocar vs. Seldinger Technique
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What are the complications of percutaneous cholecystostomy?
What are the complications of percutaneous cholecystostomy?
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What are the different approaches for percutaneous cholecystostomy?
What are the different approaches for percutaneous cholecystostomy?
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What are some factors affecting percutaneous cholecystostomy procedure selection?
What are some factors affecting percutaneous cholecystostomy procedure selection?
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What is Percutaneous Cholecystostomy (PC)?
What is Percutaneous Cholecystostomy (PC)?
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Seldinger vs. Trocar
Seldinger vs. Trocar
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Ultrasound vs. CT for PC
Ultrasound vs. CT for PC
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PC Post-Procedure Care
PC Post-Procedure Care
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PC Success Rate
PC Success Rate
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When is PC used?
When is PC used?
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What is the goal of PC?
What is the goal of PC?
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What are the main approaches for PC?
What are the main approaches for PC?
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Study Notes
Quality Improvement Guidelines for Percutaneous Transhepatic Cholangiography, Biliary Drainage, and Percutaneous Cholecystostomy
- The Society of Interventional Radiology (SIR) Standards of Practice Committee produced these guidelines. Committee members are experts in interventional procedures.
- Consensus is defined as 80% agreement amongst Delphi participant group members.
- Guidelines are reviewed by the Revisions Subcommittee.
- The documents undergo a 30-day comment period for feedback from SIR members.
- The SIR Executive Council endorses the document before publication.
Methodology
- The SIR uses a process for producing standards documents.
- Standards of relevance and timeliness are conceptualized by the Standards of Practice Committee.
- A recognized expert is designated as the primary author.
- A comprehensive literature search utilizes electronic databases.
- Peer-reviewed articles are critically assessed, evaluating methodology, results, and conclusions.
- Evidence is compiled into tables for evaluation.
- Consensus is achieved through a modified Delphi method among a minimum of 12 committee members if evidence is weak, conflicting, or contradictory.
Introduction
- Percutaneous transhepatic cholangiography is a safe and effective procedure for evaluating biliary abnormalities.
- It reliably shows the level of abnormalities.
- It can sometimes help determine the etiology of the abnormalities.
- Percutaneous transhepatic biliary drainage is a primary or palliative treatment of biliary abnormalities and can be used to help with treatment of many abnormalities revealed by cholangiography.
- Percutaneous cholecystostomy is effective for decompressing the gallbladder to manage cholecystitis.
- These guidelines are intended for quality improvement initiatives and to help assess percutaneous transhepatic procedures.
Definitions
- Percutaneous transhepatic cholangiography involves sterile needle insertion into peripheral biliary radicles, guided by imaging. Contrast administration delineates the biliary anatomy/pathology.
- Percutaneous transhepatic biliary drainage involves sterile cannulation of a peripheral biliary radicle, guided by imaging, to create a pathway for treatment. Drainage through a tube or stent completes the procedure.
- Percutaneous cholecystostomy involves needle placement into the gallbladder for bile aspiration; a tube is often added for external drainage.
Indications and Contraindications
- Indications for each procedure are listed in tables 1-3.
- Thresholds for indications are 95%.
- Coagulopathy is a relative contraindication.
Quality Improvement
- Thresholds can be used to evaluate ongoing quality improvement programs. Procedure thresholds or overall thresholds can help gauge indicator thresholds for procedures.
- Thresholds for individual complications may vary by individual complications. Review should be performed when indicators such as those for success rate fall below minimum thresholds or complication rates exceed maximum levels.
- Patient referral patterns and factors may lead to differences in thresholds for specific indicators.
Success Rates and Thresholds
- Success rates for each procedure are detailed in tables 4-6.
- Threshold levels for success rates are detailed.
Complications
- Complications rates are presented in tables 7-9.
- Threshold rates are indicated for each specific type of complication.
- Early in quality improvement programs, reaching a specific threshold may be due to a single complication, while overall procedure thresholds are often more useful for general program assessment.
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