Page 26 - World Journal of Laparoscopic Surgery

Evaluation of Various Port Positions for Minimal Access Cardiovascular and Thoracic Procedures

Fig. 34: Average timing for purse string suture placement for a circular Fig. 35: Surgeon’s discomfort level for purse string suture placement for
stapler in esophagectomy with different manipulation angles a circular stapler in esophagectomy

Readings of timing obtained while taking a suturing and tying These suggest that the 60° angle has shorter operative time than
surgeon’s knot in lung resection on swine at different manipulation the 30° and 90° and above.
2
angles (30°, 60°, 90°) were validated and average obtained by χ These findings were consistent with some other researchers. 8,10
tests. All the readings were reproducible at a p value of 30.144 at
5% level of significance. It was demonstrated that the 60° angle had Timing for Clipping in Thymectomy
shorter operative time followed by 30° and then 90°. Average timings (mean time) in seconds for clipping in thymectomy
These findings were supported by some other studies. Yunusa at 30°, 60°, and 90° angle are 33.00, 32.33, and 39.50, respectively.
2
et al. and Ismail and Mishra also mentioned that 60° angle has The χ values at those angles are 3.03, 0.91, and 1.46. The lowest
shorter operative time followed by 30° and then 90°. time required is at 60° angle manipulation.
Similar findings were found by some other researchers. 8,10
Timing for Applying Endolinear Stapler in Lung Resection
Average timings (mean time) in seconds for applying an endolinear ASD Closure
stapler in lung resection at 30, 60°, and 90° angle are 907.17, 835.00, Timing for Suturing and Tying Surgeon’s Knot in ASD Closure
2
and 988.50, respectively. χ values at those angles are 0.69, 0.58 Average timing (mean time) in seconds for suturing and tying
and 0.74. The lowest time required is at 60° angle manipulation. surgeon’s knot in ASD closure at 30°, 60°, and 90° angle are 225.67,
Readings of timing obtained while applying an endolinear 128.67, and 293.33 respectively. χ values at those angles are
2
stapler in lung resection in swine at different manipulation angles 12.33, 10.21, and 11.15. The lowest time required is at 60° angle
(30°, 60°, 90°) were shown, which were validated and average manipulation.
2
obtained by χ tests. The average timings in seconds for 30°, 60°, and Readings of timing taken to suturing and tying surgeon’s
90° were 907.17, 835.00, and 988.50, respectively. All the readings knot in ASD closure in swine at different manipulation angles are
were reproducible at a p value of 30.141 at 5% level of significance. shown, which were validated by χ test and means obtained. The
2
It was demonstrated that the 60° angle had shorter operative time average timing in seconds for 30°, 60°, and 90° were 225.67, 128.67,
followed by 30° and then 90°. and 293.33, respectively. It was clearly demonstrated that the 60°
Similar findings were demonstrated by some other angle had shorter operative time followed by 30° and then 90°,
researchers. 8,10 although all the readings were reproducible at a p value of 30.141
and 5% level of significance.
Thymectomy Different studies showed similarity with the present study. 8,10
Timing for Suturing and Tying Surgeon’s Knot in thymectomy
Average timing (mean time) in seconds for suturing and tying Timing for Aorta Cross-clamping in ASD Closure
surgeon’s knot in thymectomy at 30, 60 and 90° angle is 222.17, Average timings (mean time) in seconds for aorta cross-clamping
2
133.17, and 282.83, respectively. χ values at those angles are 8.39, in ASD closure at 30°, 60°, and 90° angle are 32.50, 31.00, and 40.50,
2
7.88, and 8.52. The lowest time required is at 60° angle manipulation. respectively. χ values at those angles are 2.88, 1.48, and 1.52. The
Readings of timing taken for suturing and tying a surgeon’s knot lowest time required is at 60° angle manipulation.
in thymectomy in swine at different manipulation angles, which The average timings in seconds for 30°, 60°, and 90° are 32.50,
2
were validated by the χ test and average obtained. The average 31.00, and 40.50, respectively. All the readings were reproducible at
timings in seconds for 30°, 60° and 90° were 222.17, 133.17, and a p value of 30.141 at 5% level of significance. It was demonstrated
282.83, respectively. Only readings at 30° and 60° were reproducible that the 60° angle had shorter operative time followed by 30° and
2
at a p value of 30.141 at 5% level of significance but the χ of readings then 90°.
at 90 was less than the p value, indicating nonreproducibility. Similar findings were observed by some other researchers. 8,10

112 World Journal of Laparoscopic Surgery, Volume 12 Issue 3 (September–December 2019)