ObjectiveTo evaluate the effect of postoperative no indwelling urethral catheters in lung operation. MethodsIn this prospective cohort study, we recruited 100 patients who were scheduled for pulmonary lobectomy under general anesthesia in a single institution of Thoracic Surgery Department in West China Hospital between April and December 2014. These patients were divided into two groups including a no indwelled urethral catheter group (NIUC, 50 patients) and an indwelled urethral catheter group (IUC, 50 patients). The clinical effect was compared between the two groups. ResultsThere was no statistical difference in incidence of postoperative urinary retention or urinary tract infection between the two groups (P=0.433, 0.050). However, the comfort degrees(0 degree) of patients in the NICU group was significantly higher than that of the ICU group with a statistical difference (P=0.002). While postoperative hospitalization time in the NICU group (P=0.023) was shorter than that in the ICU group (P=0.004). Prostatic hyperplasia was the high risk factor for the lung postoperative urinary retention (P=0.056). ConclusionPostoperative no indwelling urethral catheters in lung operation has the benefit of improving the comfort degrees of inpatients and increasing the postoperation urinary retention.
ObjectiveTo investigate the effect of burn on the fat metabolism by observing the effect of burn serum on the proliferation and adipose differentiation of 3T3-L1 preadipocytes. MethodsForty-eight male Sprague Dawley rats were randomly divided into sham burn group and burn at 1, 4, 7, 14, and 21 days groups, 8 rats in each group. The rats in burn groups were made the full-thickness thermal burns comprising 30% total body surface area. At 1, 4, 7, 14, and 21 days after burn, the serum of burn rats was collected. The rats in sham burn group were not treated as normal control. The proliferation activity of 3T3-Ll cells was detected using MTT method after treated by normal and burn serum. The burn serum having the highest proliferation inhibitory effect was chosen for subsequent study. The growth of 3T3-L1 cells in normal serum group (group A), burn serum group (group B), normal serum and adipogenic induction group (group C), burn serum and adipogenic induction group (group D) was observed using inverted microscope. After 7 days of treatment, the adipocytes was stained by oil red O and the absorbance (A) value was measured. The mRNA and protein levels of preoxisome proliferator-activated receptor γ (PPAR-γ) and lipoprotein lipase (LPL) were detected by real-time quantitative PCR and Western blot. ResultsThe proliferation ability of 3T3-L1 cells was significantly reduced in the group treated by 4-or 7-day burn serum (P<0.05), especially 7-day burn serum treatment group (P<0.05). Under inverted microscope, the cell morphology in group A and group B had no obvious change, but a large number of fat cells were observed in group C and a few were observed in group D. The positive or weak positive oil red O staining was observed in group C or group D, respectively. The cell counting and A value were significantly higher in group A than in group B, and in group C than in group D (P<0.05). The mRNA level of PPAR-γ in group B was significantly reduced when compared with that in group A (P<0.05). No significant difference was found in LPL mRNA levels and protein levels of PPAR-γ and LPL between group A and group B (P>0.05). The mRNA and protein levels of PPAR-γ and LPL were significantly attenuated in group D when compared with those in group C (P<0.05). ConclusionThe adipose differentiation of 3T3-L1 preadipocytes can be significantly reduced after treated by 7-day burn serum of rat.
ObjectiveTo investigate the effect of burn on brown adipose tissue (BAT) in BALB/c mice. MethodsForty 3-4 months old male BALB/c mice with initial body weight of (20±3) g were randomly divided into control group and burn group (n=20).BALB/c mice in burn group were subjected to a 30% total body surface area (TBSA) full-thickness thermal injury.BALB/c mice in control group were not treated.The body weight and temperature were observed before and after burn.At 7 days after burn,morphological changes of white adipose tissue (WAT) and BAT were observed,the gene and protein expressions of uncoupling protein 1 (UCP-1) were detected. ResultsThere was no significant difference in the body weight and body temperature before burn (P>0.05).At 1,2,3,and 4 weeks after burn,the body weight was significantly lower in burn group than in control group (P<0.05).At 1,2,3,and 7 days after burn,the body temperature was significantly higher in burn group than in control group (P<0.05).At 7 days after burn,the weight of WAT was significantly reduced,and the weight of BAT was significantly increased in burn group (P<0.05); WAT and BAT cells became smaller,cell number increased,the cytoplasm and mitochondria appeared as compact.The UCP-1 gene and protein expressions of burn group were significantly higher than those of control group (P<0.05). ConclusionBAT plays an important role in burn-induced hypermetabolism.
ObjectiveTo determine if comfort level was associated with chest tube size(16F or 28F) among lung cancer patients with video-assisted thoracoscopic surgery (VATS) lobectomy. MethodsWe performed VATS lobectomy for 163 patients with lung cancer in our hospital between February and May 2014. There were 70 males 93 females. The patients were allocated into two groups including a 28F group and a 16F group. There were 75 patients at age of 53.18±14.73 years with insertion of one chest drain of 28F in the 28F group. And there were 88 patients at age of 56.62±12.62 years with insertion of one chest drain of 16F in the 16F group. Heart rate and variation of pulse, breathing rate and variation of breathing rate, pain scores, comfort level, and activities daily living (ADL) of the two groups were compared. ResultsThere was no significant difference in the patient characteristics and operation data between the two groups. There were statistical differences in variation of heart rates on the 1st day, 2nd day, and 3rd day after operation between the 16Fgroup and the 28F group (9.67±3.33 times/min vs.18.54±5.33 times/min, P=0.037; 7.89±2.88 times/min vs. 19.01±4.67 times/min, P=0.045; 7.67±3.01 times/min vs. 20.88±5.34 times/min, P=0.021). The percentage patients of mild pain in the 16F group (77.65%) was higher than that in the 28F group (49.78%, P=0.023) with a statistical difference. The independent ambulation and comfort level in the 16F group(67.05%, 67.05%) were significant higher than those in the 28F group (45.78%,55.11%, P=0.023, P=0.026). ConclusionOur findings suggest that drainage via a small-bore chest tube provides meaningful postoperative comfort level in the patients with VATS lobectomy.
Objective To evaluate the advantages of perioperative painless indwelling urethral catheters in lobectomy of lung cancer. Methods We recruited 133 patients who were scheduled for lung cancer lobectomy under general anesthesia in Department of Thoracic Surgery in West China Hospital from April through December 2014. These patients were divided into two groups including a control group (68 patients) and a trial group (65 patients). The trial group was painless indwelled urethral catheter, and the control group was indwelled urethral catheter routinely. The clinical effectiveness between the two groups was compared. Results The rates of emergence agitation (EA) occurrence and urinary tract infection in the trial group (10.77%, 9.23%) were reduced than those in the control group (26.47%, 26.47%) with statistical differences (P=0.022, P=0.047). And the rate of comfort level (0 degree) of the patients in the trial group (87.69%) was significantly increased than that in the control group (48.53%, P=0.001). And postoperative hospitalization duration in the trial group (5.00±1.60 d) was shorter than that in the control group (6.48±3.14 d, P=0.004). Conclusion Perioperative painless indwelling urethral catheters in lobectomy of lung cancer has benefit of improving the comfort level of the patients and promoting fast-track rehabilitation in the patients with lung cancer.