Radical nephrectomy with transperitoneal subcostal incision for large and locally advanced tumors of the right kidney

BACKGROUND

Several surgical approaches have been used for radical nephrectomy for large and locally advanced tumors of the right kidney.

AIM

To present our experience with radical nephrectomy using a right subcostal incision with a transperitoneal approach in patients with very large tumors of the right kidney.

PATIENTS AND METHODS

Between 2003 and 2010, 34 patients with very large tumors of the right kidney were submitted to surgery. Eighteen patients underwent a transperitoneal approach with a right subcostal incision (intervention group) and 16 patients were operated on with retroperitoneal flank incision (control group).

RESULTS

No significant complications during surgery were observed in the intervention group; two patients needed blood transfusions of 300 cc during the first postoperative day. In the control group, injury of the renal vein or inferior vena cava (IVC) was a relatively common complication; five patients needed blood transfusions of 300 cc during the first postoperative day.

CONCLUSION

A transperitoneal right subcostal incision for radical nephrectomy in patients with large and locally advanced tumors of the right kidney seems to offer better access to the renal pedicle, and to the great vessels of the area as well as better exposure of the organs of the abdominal cavity. This approach could be more useful in cases in which liver involvement is possible.

Early removal of nasogastric tube is beneficial for patients undergoing radical cystectomy with urinary diversion

PURPOSE

Examine the beneficial effect of early nasogastric tube (NGT) removal in patients undergoing radical cystectomy with urinary diversion.

PATIENTS AND METHODS

43 consecutive patients underwent radical cystectomy with urinary diversion and were randomized into 2 groups. In the intervention group (n = 22), the NGT was removed 12 hours after the operation. Comparatively, in the control group (n = 21), the NGT remained in place until the appearance of the first flatus. The appearance of ileus, patient ambulation, time to regular diet, and hospital discharge of the two patient groups were assessed. Patient discomfort due to the NGT was also recorded.

RESULTS

The 2 groups showed statistical homogeneity of their baseline characteristics. Two patients (9.09%) from the intervention and 3 patients (14.3%) from the control group developed postoperative ileus and were treated conservatively. No significant differences in intraoperative, postoperative, bowel outcomes or other complications were found between the two groups. All patients preferred the NGT to be removed first in comparison to their other co-existing drains.

CONCLUSIONS

This is the first randomized, prospective study, to our knowledge, to assess early NGT removal after radical cystectomy. We advocate early removal, independently of the selected type of urinary diversion, since it is not correlated with ileus and is advantageous in terms of patient comfort and earlier ambulation.

The effect of alpha-blocker treatment on bladder hypoxia inducible factor-1 alpha regulation during lower urinary tract obstruction

AIMS

To determine whether alpha1-blocker treatment, in chronic bladder outlet obstruction (BOO), influences bladder tissue ischemia.

MATERIALS AND METHODS

This prospective study included 60 patients with BOO, of which 40 were under alpha1-blocker medication and 20 without treatment. Patients underwent transurethral resection of the prostate (TURP) or suprapubic prostatectomy (SPP). Ten patients with non-muscle invasive bladder cancer underwent transurethral resection of the bladder tumor and served as the control group. Tissue specimens were immunohistochemically stained for hypoxia inducible factor-1alpha (HIF-1alpha).

RESULTS

Bladder tissue from obstructed subjects showed high immunoreactivity to HIF-1alpha. The specimens from the control group, showed no or weak, mainly cytoplasmic immunoreactivity to HIF-1alpha. Patients under alpha -blocker treatment did not differ in the number of HIF-1alpha positive cells compared to subjects with no treatment (median number 86.8 [20-150] and 88.6 [0-175], respectively) (p > 0.05). The lowest bladder pressure at which HIF-1alpha was up regulated, was detected at detrusor pressure Qmax (PdetQmax) = 60 cm H2O.

CONCLUSIONS

Treatment with alpha-blockers in obstructed patients considered as non-responders, does not result in HIF-1alpha down regulation, thus bladder continues to be under chronic stress.

Biopsy-related hemorrhage of renal allografts treated by percutaneous superselective segmental renal artery embolization

INTRODUCTION

Biopsy-related vascular injuries in renal transplants are rare, but they can lead to dramatic clinical symptoms prompting immediate treatment. Transcatheter embolization is a minimally invasive technique used to treat some forms of arterial bleeding. This study evaluated the efficacy of this technique in iatrogenic biopsy-related vascular lesions in renal allografts.

MATERIALS AND METHODS

Over the last eight years, six patients with severe renal hemorrhage were admitted to the angiography department of our hospital for evaluation and possible further treatment. All of them had a history of previous biopsy of a transplanted kidney. They all presented with clinical signs of hemodynamic instability. Angiographic investigation of the kidneys preceded further intervention in all cases. All underwent hyperselective embolization of the specific bleeding vessel with the use of microcoils and/or gelfoam particles.

RESULTS

Successful embolization of the feeding artery could be performed in all patients. Superselective segmental renal artery embolization had a successful outcome concerning a steady renal function and a stable clinical course. No complications occurred.

CONCLUSION

Transcatheter embolization is a safe and efficient endovascular technique to treat biopsy-related vascular injuries in renal transplants. Immediate clinical success and significant benefit in renal function can be obtained, and the longevity of the allograft after successful embolization mainly depends on the natural outcome.