Skip to main content

Table 3 Preoperative, intraoperative, and postoperative parameters

From: Concerns about stone free rate and procedure events of percutaneous nephrolithotripsy (PCNL) for 2–4 cm kidney stones by standard-PCNL vs mini-PCNL- comparative randomised study

 

Mini-PCNL (n = 40)

standard-PCNL

(n = 40

P value

Mean/ Count

SD/ %

Mean/ Count

SD/%

Preoperative parameters

Hb (gm/dl)

13.2

1.3

13.3

1.5

0.877

Serum Creatinine (mg/dl)

1.09

.28

1.26

.58

0.251

Blood urea (mg/dl)

28.6

7.2

34.5

17.7

0.172

Operative time (minutes)

95.0

17.6

72.1

14.9

0.0001

X-ray exposure time (seconds)

344.0

59.5

314.0

84.2

0.201

Intra-operative complications

None

39

95.0%

36

90.0%

0.626

Collecting system perforation

(DJ fixation)

1

2.5%

3

7.5%

intraoperative bleeding

0

0.0%

1

2.5%

Post-operative parameters

Hb drop (gm/dl)

Change in Creatinine(mg/dl)

0.58

0.0

0.64

0.11

1.64

0.07

0.93

0.24

0.0001

0.272

Postoperative pain

(Visual analogue scale of pain)

5.7

0.7

7.5

1.1

0.0001

Postoperative

Need for analgesia

No

22

55.0%

0

0.0%

0.0001

NSAID

18

45.0%

14

35.0%

Pethidine

0

0.0%

26

65.0%

Hospital stays (days)

2.05

0.9

3.4

1.1

0.0001

Stone free rate

32

80.0%

34

85.0%

0.677