Clinical Study Appendix
Browse AirSeal® studies by specialty to quickly learn about their key findings.
Colorectal Surgery
Authors: M Grieco, F Tirelli, et al.
Focus of Study: TaTME
Publication Type: Consecutive, Retrospective
Key Takeaways:
The low pressure group showed:
- Decreased occurrence of post-op ileus
- Shorter time to solid oral feeding
Authors: A Akingboye, M Hamid, et al.
Focus of Study: Lap Colorectal Surgery
Publication Type: Prospective
Key Takeaways:
AirSeal at 8mmHg group experienced:
- Improved intraoperative lung compliance and peak inspiratory pressures
- Decreased post-op pain over 5 days both at rest and on exertion
- Low IAP was associated with an earlier time to pass flatus post-op
Authors: Q Denost, S Celarier, et al.
Focus of Study: Lap & Robotic Colectomy
Publication Type: Prospective, Randomized
Key Takeaways:
AirSeal at 7mmHg group experienced:
- Reduced LOS (1 day)
- Lower post-operative pain scores /li>
- Improved post-operative patient mobilization (sitting and walking)
Authors: V Obias, J Paull, et al.
Focus of Study: Robotic LAR and Right Hemicolectomy
Publication Type: Retrospective
Key Takeaways:
AirSeal group showed:
- Significantly shorter (20.8%) Low Anterior Resection procedure times (232 min vs. 293 min)
- Significantly lower EBL (28.2%) in Low Anterior Resection procedures (150cc vs. 209cc)
General Surgery
Authors: B Ramshaw, B Forman, et al.
Focus of Study: Lap Ventral Hernia
Publication Type: CQI
Key Takeaways:
- Patients in AirSeal + Exparel group had a shorter length of stay in hospital
- Procedures in AirSeal + Exparel group were 25% shorter in duration (101 minutes vs. 135 minutes)
Authors: B Ramshaw, V Vetrano, et al.
Focus of Study: Lap Inguinal Hernia
Publication Type: CQI
Key Takeaways:
Patients in the group with AirSeal at low pressure and Exparel:
- Were 7.81 times more likely to be discharged on the day of surgery
- Were 80.5% less likely to develop a new type of groin pain after surgery
Authors: N de'Angelis, F Brunetti, et al.
Focus of Study: Lap Cholecystectomy
Publication Type: Consecutive, Prospective
Key Takeaways:
- Low stable pneumoperitoneum pressure with AirSeal in sickle cell disease (SCD) patients is associated with a significantly reduced incidence of post-operative SCD-related morbidity
- AirSeal allowed for rapid ambulation/return to regular diet without increasing the total cost per patient
Authors: D Telem, R Kikhia, et al.
Focus of Study: Lap Cholecystectomy
Publication Type: CQI
Key Takeaways:
- Patients in the AirSeal group had a LOS that was 34.7% shorter (19.6 vs 30 hours) than patients in the SI group
Authors: B Needleman, J Rydlewicz, et al.
Focus of Study: Roux-en-Y (Gastric Bypass)
Publication Type: Retrospective, Randomized
Key Takeaways:
The AirSeal group:
- Saved 12.3 minutes on average, which saves about $345 per case on OR time
- Had a mean EBL of 34.6cc compared to the VersaStep group which had a mean EBL of 45cc
Authors: W Richards, P Saway, et al.
Focus of Study: Lap General and Bariatric Surgery
Publication Type: Consecutive, Prospective
Key Takeaways:
The AirSeal group showed:
- Trends toward lower pain scores at discharge or 24 hours
- Statistically lower PIP (peak inspiratory pressure)
- Statistically lower etCO2
Gynecologic Surgery
Authors: J Huang, C Foley, et al.
Focus of Study: Robotic Gynecology
Publication Type: Prospective, Consecutive
Key Takeaways:
- Each reduction in intraabdominal pressure corresponded to a significant decrease in initial pain scores and LOS
- Patients in the AirSeal 8 & 10mmHg groups had significantly shorter lengths of stay compared to the high-pressure groups (12 & 15mmHg)
- Each reduction in intraabdominal pressure corresponded to a significant decrease in Peak Inspiratory Pressures (PIP)
- Each reduction in intraabdominal pressure corresponded to a significant decrease in Tidal Volume (TV)
Authors: J-L Benifla, J Sroussi, et al.
Focus of Study: Lap Gynecology
Publication Type: Prospective, Randomized
Key Takeaways:
Patients in the AirSeal group:
- Experienced both a lower incidence and severity of post-operative pain
- Had lower maximal peak airway pressure
- Had lower maximal etCO2
- Had a lower maximal systolic blood pressure
- Twice as many patients in the AirSeal group were discharged on the day of surgery (46.7% vs. 23.3%)
Authors: A Buda, G Di Martino, et al.
Focus of Study: Laparoscopic Hysterectomy, BSO, Sentinel Node Biopsy
Publication Type: Multicenter, Retrospective
Key Takeaways:
AirSeal patients showed:
- Lower incidence of post-operative shoulder pain
- Lower severity of global pain at 4, 8, and 24 hours/li>
- Significantly lower etCO2
- Significantly lower Peak Airway Pressure
- Significantly lower systolic blood pressure
- Significantly faster recovery
- 98% of patients were discharged within 2 days vs. 75% of patients in the standard group
Authors: I Boualaoui, E Bey, et al.
Focus of Study: Lap/Robotic Sacrocolpopexy
Publication Type: Retrospective, Single-center
Key Takeaways:
The AirSeal group showed:
- 1. A statistically significant difference in the mean operating time (110 minutes in the AirSeal group vs. 121 minutes in the Standard Insufflation group)
- Trend towards shorter LOS
- Trend towards lower post-op pain
Pediatric Surgery
Authors: G Miyano, K Morita, et al.
Focus of Study: Laparoscopic Toupet Fundoplication
Publication Type: Single Subject Case Study
Key Takeaways:
- With the AirSeal iFS, there was no disruptive loss of pneumoperitoneum, which saves time and allows the operator to focus without distraction
- The AirSeal iFS contributed to the successful completion of LTF in a 1.8kg infant
Urologic Surgery
Authors: M Covotta, C Claroni, et al.
Focus of Study: Robotic Cystectomy
Publication Type: Prospective, Parallel
Key Takeaways:
Patients in the AirSeal group showed:
- Lower inspiratory plateau pressure (Pplat)
- Lower minute volume (MV)
- Lower etCO2
- Significantly higher static compliance (Cstat)
Authors: W Zhi, Y Wang, et al.
Focus of Study: Robot-Assisted Radical Prostatectomy
Publication Type: Meta-analysis
Key Takeaways:
- AirSeal results in shorter operative time, reduced hospital stays, and fewer major complications
Authors: N Vasdev, N Martin, et al.
Focus of Study: Robot-Assisted Radical Cystectomy
Publication Type: Prospective, Consecutive
Key Takeaways:
The 12mmHg AirSeal group:
- Had a 40 min shorter operative time and 1-day shorter LOS than the 15mmHg group
- Had fewer patients with ileus (10% vs. 30%) compared to the 15mmHg group
- Passed flatus 1 day earlier and stooled 1.5 days earlier than 15mmHg group
- The study found that patients in the 15mmHg AirSeal group had a higher risk of paralytic ileus post robotic cystectomy and robotic intracorporeal urinary diversion
Authors: G Fan, Y Chen, et al.
Focus of Study: Robotic Partial Nephrectomy
Publication Type: Systematic, Meta-analysis
Key Takeaways:
AirSeal group showed:
- Significantly lower rates of subcutaneous emphysema
- 12hr post-op pain scores significantly lower
Authors: W Xu, M Wei, et al.
Focus of Study: Robotic Partial Nephrectomy
Publication Type: Randomized Controlled Trial
Key Takeaways:
AirSeal group showed:
- Significantly lower subcutaneous emphysema rate than the conventional group
- Significantly lower etCO2, PaCO2 at the end of the operation, lower tidal volumes and frequency of scope cleaning
- Significantly lower post-op pain scores at 8hr, 12hr, and at time of discharge
Authors: F Forte, S Sorrenti, et al.
Focus of Study: Lap Partial Nephrectomy
Publication Type: Retrospective
Key Takeaways:
-
AirSeal group showed:
- Lower operative time (107.5 min in AirSeal group vs. 120 min in SI group)
- Lower complication rates
- Decreased perioperative blood loss (1.45g/dL vs 2.2g/dL)
- Reduced warm ischemia time (18 min vs. 20 min)
Authors: J Landman, P Bucur, et al.
Focus of Study: Lap Renal & Peri-Renal Surgery
Publication Type: Prospective, Randomized
Key Takeaways:
Patients in the AirSeal group:
- Had a pneumoperitoneum that was far more stable or less variable than patients in the Standard Insufflation group
- Had a lower etC02 after 10 minutes of insufflation than patients in the SI group
Authors: B Desroches, J Porter, et al.
Focus of Study: Robotic Partial Nephrectomy
Publication Type: Prospective, Randomized, Multicenter
Key Takeaways:
- Patients in the 12mmHg AirSeal group developed SCE less often than patients in both the AirSeal 15mmHg and SI 15mmHg groups
- There was no difference in SCE rates between patients in AirSeal 15mmHg and SI 15mmHg groups
- Peak airway pressure was lower in both AirSeal groups VS. SI group
- etCO2 was lower in the AirSeal 12mmHg group than both the AirSeal 15mmHg and SI 15mmHg groups
Authors: T Feng, J Porter, et al.
Focus of Study: Partial Nephrectomy
Publication Type: Prospective, Randomized, Controlled trial
Key Takeaways:
- AirSeal insufflation at 12mmHg was associated with a reduced risk of developing subcutaneous emphysema
- Pain was decreased in both AirSeal groups compared to standard insufflation
Authors: R Abaza, M Ferroni
Focus of Study: Robotic Prostatectomy
Publication Type: Prospective, Consecutive
Key Takeaways:
The 6mmHg group showed:
- Patients had lower max pain scores between 5 and 12 hours
- Fewer overall complications
- The mean LOS was shorter (0.57 vs 1 day)
- 43.3% of patients were discharged on the day of surgery
- Fewer patients returned to the ER within 30 days
- Fewer patients were readmitted within 30 days
Authors: M Yezdani, S Yu, et al.
Focus of Study: Robotic Prostatectomy
Publication Type: Single-site, Perspective
Key Takeaways:
-
AirSeal group showed:
- Significantly less operative time (146min vs. 167min)
- Reduction in intraoperative blood loss (132ml vs. 215ml)
- Pain scores at 6-12 hours post-op were significantly lower (3.3 vs. 4.1) than the SI group
Authors: D Lee, Mohammed S, et al.
Focus of Study: Robotic Prostatectomy
Publication Type: Consecutive, Prospective
Key Takeaways:
- Procedures in AirSeal group were 12.6% shorter in duration
- Patients in AirSeal group had fewer episodes of nausea (2% vs 10%)
- Trend toward less pain in the AirSeal group within the first 24 hours after surgery
Authors: A Mottrie, G Vandenbroucke, et al.
Focus of Study: Robot-assisted Radical Prostatectomy (RARP)
Publication Type: Prospective, single center
Key Takeaways:
- Central venous pressure and mean airway pressure showed improvements when AirSeal was used
Authors: Y Lu, Q Zou, et al.
Focus of Study: Minimally Invasive Urological Surgery
Publication Type: Meta-analysis
Key Takeaways:
AirSeal resulted in:
- Significantly lower Clavien-Dindo III-IV complications
- Significantly reduced general and shoulder pain at 12-24h post-op
- Reduced LOS
Authors: R Abaza, M Ferroni
Focus of Study: Robotic Prostatectomy
Publication Type: Randomized, Double-blinded, Controlled trial
Key Takeaways:
The 6mmHg group showed:
- Significantly lower post-op pain scores
- Improved ventilation - reduced etCO2 & PIP, reduced MAP
Authors: M Rohloff, T Maatman, et al.
Focus of Study: Robotic Prostatectomy
Publication Type: Prospective, randomized, Double blinded trial
Key Takeaways:
Patients in the AirSeal at 12mmHg group:
- Had a significantly shorter LOS
- Showed lower occurrence of post-operative ileus (decreased from 12% to 5%)
Authors: F Annino, L Topazio, et al.
Focus of Study: Robotic Partial Nephrectomy
Publication Type: Prospective, Consecutive
Key Takeaways:
The AirSeal group showed:
- Procedures were 10.8% shorter in duration
- Warm ischemia time was 38.9% shorter
- A significant increase in the number of cases performed as “zero ischemia” (clampless) was observed in the AirSeal group (20 vs 4 cases)
Authors: R Abaza, O Martinez, et al.
Focus of Study: Robotic Prostatectomy
Publication Type: Consecutive, Retrospective
Key Takeaways:
- Patient charges were significantly lower for patients that were discharged on the day of surgery with no increase in readmissions or emergency visits
Authors: A El-Hajj, C Ayoub, et al.
Focus of Study: Robotic Prostatectomy
Publication Type: Single-tertiary center study
Key Takeaways:
AirSeal was associated with:
- Shorter operative times by 12.3 minutes
- Shorter length of hospital stay by 0.5 days
- Lower odds of Clavien-Dindo complications
Authors: K Bedani, S Razdan, et al.
Focus of Study: Robotic Urologic Surgery
Publication Type: Meta-analysis
Key Takeaways:
The AirSeal group showed:
- Lower inspiratory plateau pressure, lower minute volume, lower ETCO2, lower CO2 elimination rate, higher static compliance
- Improved cardiopulmonary parameters
- Some studies showed decreased complication rates at low pressure
Authors: L Kavoussi, R Wimhofer, et al.
Focus of Study: Robotic Prostatectomy
Publication Type: Single-site, Retrospective
Key Takeaways:
- Mean operative time decreased by 23.2 min in AirSeal group vs. SI group
Miscellaneous
Authors: H Katoh, Y Ikeda, et al.
Focus of Study: Total Endoscopic Hemithyroidectomy
Publication Type: Retrospective
Key Takeaways:
- The AirSeal system significantly reduced the frequency of scope cleaning (p=0.016)
- Time to disappearance of SCE around surgical cavity was significantly shorter in the AirSeal group (p=0.019)
- When suctioning mist/smokes produced by an energy device, AirSeal prevented narrowing working space and greatly contributed to wide and clear visibility