CHETTINAD MEDICAL COLLEGE AND HOSPITAL
KELAMBAKAM, CHENNAI
TASK ANALYSIS OF LAPAROSCOPIC CHOLECYSTECTOMY
Anesthesia:
1. Laparoscopic cholecystectomy must be performed under general anesthesia
2. checking the all devices
3. Before starting operation surgeon must be sure all devices (insufflator, camera, light source, monitor, telescope and energy devices set up) are working.
4. Surgeons position
5. Operation table height must be 0.49 X surgeons height
6. Surgeon stands left side of the table
7. Camera assistant stands left side of the surgeon
8. Other assistant stands opposite side for traction of fundus
9. Surgeon, target organ and monitor should be in coaxial alignment
10. Monitor should be placed 5 times far from the surgeon of its diagonal diameter and height should be 20 cm lower than surgeon’s eyes.
Preparation :
1.The skin is initially prepared with betadine solution from just below the nipple line to the inguinal ligaments and laterally to the anterior superior iliac spine. The operative field is then draped with sterile drapes.
Insufflation:
1. One of the most important step of all laparoscopic procedures is correct and enough insufflation the abdomen with CO2.
2. Evert umbilicus with two Alley’s forceps both side
3. Make an 3 mm skin incision with no :11 blade over the lower inferior crease of umbilicus.
4. Hold up the abdominal wall
5. Hold the Veress needle( 4cm + thickmess) as a dart and put on the incision
6. Veress needle must be perpendicular to abdominal wall
7. Tip of the veress needle should be inserted towards rectum
8. Push the Veress needle and pass two layers of abdominal wall( realizes 2 prick)
9. 3 confirmatory tests to be done ;a) flushing and aspiration b) hanging drop c) plunging . when all these confirmatory tests shows positive it indicates entered into pneumoperitoneum.
10. Connect the CO2 tube.
11. Enlarge the incision( 1cm) to become smiley incision for optical port
12. Insert 10 mm trocar with screwing movements slowly
13. Connect the gas tube to the trocar
14. Be sure your camera’s white balance is OK
15. Insert the camera through the 10mm trocar
16. 30 degree camera is recommended
17. After entering the abdominal cavity inspect all abdomen possible bleeding, injury, adhesions or other pathologies which are undefined before.
INSERTION OF WORKING PORTS( BASED ON BASE – BALL DIAMOND)
1. A 1 cm incision approximately in the junction of upper third minimizing 2/3rd of the line between your xiphisternum and umbilicus.
2. A 5 mm incision within the right mid-axillary line about5 - 8 cm below the rib margin.
3. A 5 mm incision in the right mid-clavicular line about 2 cm. below the costal margin.
EXPOSURE AND DISSECTION
1. The lateral port is applied to the fundus and used to hold it cephalad over the dome of the liver.
2. If gallbladder distended extremely it must be drained with a needle.Hold the Hartman’s pouch with the medial grasper and make a traction to caudolateral.
3. With this maneuver straighten the cystic duct (ie, retracts it at 90° from the common bile duct [CBD]) and helps protect the CBD injury.
4. Any adhesions are between the gallbladder and the omentum or duodenum must be dissected with energy devices.( momopolar, bipolar, harmonic).
5. On the area of the hilum of the gallbladder it must be avoided over-dissection.
6. All movement are must be controlled and towards down to up.
7. After dissecting adhesions by retracting the infundibulum to the left side anterior peritoneum of gallbladder must be dissected at the level of Hartman’s pouch.
8. Then by retracting the infundibulum to the right side dissect the posterior peritoneum.
9. After opening both side of peritoneum there will be a window behind the infundibulum.
10. In this bundle there is cystic duct and artery.
11. Exposure them with meticulous dissection.
12. After having enough space put 3 clips to the cystic duct or ligate it with extracorporeal suture
13. Then apply 2 clips to the artery.
14. Cut both of them with scissor or with energy device such as harmonic
15. Hold the infundibulum again.
16. With monopolar hook or harmonic device start the dissection to gallbladder from hepatic surface.
17. Subsequently cut both side of peritoneum .
18. Make some traction to upper side.
19. In this step be careful about some aberrant bile duct or artery.
20. Dissect the gallbladder towards the fundus.
21. Small oozing is controlled by fulguration.
22. Try to avoid perforation of bladder.
23. Before the cutting last attachment of fundus look for bleeding of liver and clip area.
24. If there is some clots irrigate and aspirate for better view.
Mobilization and removal of gallbladder
- With 5-mm graspers are applied to the gallbladder and used to hold it over the right upper quadrant. .
- Bed of bladder and sub and suprahepatic spaces are irrigated and suctioned to ensure adequate hemostasis and removal of any debris or bile that may have spilled.
- Gall bladder is retrieved by using endobag through epigastric port .
Port removal and closure
1. The epigastric port and the two 5-mm ports are removed under direct vision.
2. The fascia is closed at the umbilical port.
3. All of the skin incisions are closed with skin staples .
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How to Perform and Implement Task Analysis of Laparoscopic and Robotic Procedures
Task analysis is a critical component of any complex surgical procedure, including laparoscopic and robotic surgeries. It involves breaking down the procedure into its constituent tasks, identifying the steps, skills, and cognitive processes required. Task analysis not only enhances the understanding of these intricate surgeries but also serves as a foundation for training, skill assessment, and continuous improvement in healthcare. In this essay, we will delve into how to conduct and implement task analysis for laparoscopic and robotic procedures.
Understanding the Significance of Task Analysis
Before we explore the procedure for task analysis, it's essential to recognize why it is of paramount importance in the realm of surgery, particularly for laparoscopic and robotic procedures.
1. Enhanced Learning and Training: Task analysis helps in developing structured training programs. It breaks down complex procedures into manageable components, making it easier for trainees to learn and practice each step methodically.
2. Skill Assessment: By understanding the tasks and sub-tasks involved, it becomes possible to assess the competence of surgeons and surgical teams. This is crucial for ensuring patient safety and quality care.
3. Workflow Optimization: Task analysis can reveal inefficiencies in surgical workflows. Identifying these bottlenecks allows for process improvements, potentially reducing surgical times and enhancing outcomes.
4. Error Reduction: Recognizing potential points of error is vital for preventing surgical complications. Task analysis can highlight critical steps where errors are more likely to occur, leading to proactive measures to mitigate risks.
Procedure for Task Analysis of Laparoscopic and Robotic Procedures:
Task analysis for laparoscopic and robotic procedures involves several steps:
Step 1: Define the Surgical Procedure
Begin by clearly defining the surgical procedure you wish to analyze. Whether it's a laparoscopic cholecystectomy or a robotic prostatectomy, having a specific procedure in mind is essential.
Step 2: Gather Expert Input
Engage experts in the field, including experienced surgeons, nurses, and other surgical team members. Their input is invaluable in identifying and detailing the tasks involved.
Step 3: Identify the Tasks and Sub-Tasks
Break down the surgical procedure into tasks and sub-tasks. For instance, in a laparoscopic cholecystectomy, tasks could include trocar placement, camera insertion, gallbladder dissection, and suturing. Sub-tasks under "trocar placement" might involve choosing trocar sizes, making incisions, and inserting trocars.
Step 4: Sequence the Tasks
Establish the chronological order of tasks. Determine which tasks are dependent on others and identify any parallel processes. Sequencing tasks is essential for understanding the flow of the procedure.
Step 5: Define Task Goals and Objectives
For each task and sub-task, define the goals and objectives. What should be achieved in each step? For instance, in gallbladder dissection, the goal might be to safely detach the gallbladder from the liver while preserving nearby structures.
Step 6: Skill and Equipment Requirements
Specify the skills and equipment required for each task. Consider the level of expertise needed, such as basic laparoscopic skills or advanced robotic manipulation. Document the instruments and technology involved.
Step 7: Cognitive Processes
Identify the cognitive processes involved, such as decision-making, spatial orientation, and problem-solving. Understanding the mental aspects of surgery is critical for training and error prevention.
Step 8: Consider Variations and Complications
Acknowledge potential variations in the procedure and anticipate complications. How would the surgical team adapt if unexpected issues arise? Task analysis should encompass both the standard procedure and potential deviations.
Step 9: Develop Training and Assessment Tools
Use the task analysis results to create structured training modules. These modules should align with the identified tasks, objectives, and skill requirements. Additionally, design assessment tools to evaluate the competence of trainees and surgical teams.
Step 10: Continuous Improvement
Task analysis is not a one-time endeavor. Regularly revisit the analysis to incorporate new techniques, technology, and best practices. Continuous improvement is vital for staying at the forefront of surgical care.
Implementing Task Analysis Results:
Once task analysis is complete, it's crucial to implement the findings effectively:
1. Training Programs: Develop and deliver training programs based on the task analysis. These programs should encompass both simulation-based training and real-life surgical experience.
2. Skill Assessment: Use the assessment tools developed during task analysis to evaluate the skills of surgical teams. This can be done through structured evaluations and objective metrics.
3. Quality Improvement: Task analysis can reveal areas for process improvement. Work with the surgical team to implement changes that enhance efficiency and patient outcomes.
4. Error Prevention: Utilize the identified points of error to develop strategies for error prevention. This might involve checklists, preoperative briefings, and enhanced communication protocols.
5. Research and Innovation: Task analysis can also guide research efforts, leading to the development of new techniques and technologies that improve surgical procedures.
In conclusion, task analysis is an indispensable tool in understanding, teaching, and advancing complex surgical procedures such as laparoscopic and robotic surgeries. By meticulously dissecting each task and sub-task, identifying skill requirements, and considering cognitive processes, healthcare professionals can enhance patient safety, optimize surgical workflows, and continually improve the quality of surgical care. Task analysis is not merely an analytical exercise; it is a pathway to excellence in surgical practice.
