Nefrectomie laparoscopică cu extragerea transvaginală a rinichiului. Primul caz realizat în România – premieră naţională

Introduction

On January 2017, we performed a left-sided laparoscopic nephrectomy with transvaginal extraction of the kidney. From our data and the extensive research of the literature, this is the first procedure of this kind in Romania and we present this case as a national premiere.

Materials and method

We present the case of a 32-year-old female patient who presented in our department with hypertension (180/90 mmHg) due to a small kidney. CT scan revealed a small left kidney and malrotated right kidney without other pathology (Figure 1). The creatinine level was 0.9 mg%, and renal scintigraphy showed less than 10% function for this kidney.

After a meticulous cardiologic and anesthesiologic evaluation, we planned to do the first laparoscopic nephrectomy with transvaginal extraction of the specimen in our country, Romania.

The standard gynecological evaluation was done.

A transvaginal ultrasonography to assess pelvic organs and pathology of the Douglas pouch (fluid collections, pelvic inflammatory disease) was also performed.

The surgical procedure was extensively explained to the patient. She was informed of the innovative nature of such surgery.

The expected outcomes and potential risks and complications were also discussed. The patient was also informed about the available surgical alternatives before the written informed consent was given.

Surgical technique

We placed the patient in extended right flank position. The abdomen, the external genitalia and the vagina were prepared using povidone-iodine solution and the patient was draped to include those areas. Foley catheter and nasogastric tube were inserted.

The approach was transperitoneal with standard trocar placement. The pneumoperitoneum was insuflated with a Veress needle. Only three trocars were used.

First, a 12-mm trocar for the optics was introduced 5 cm lateral and superior to the umbilicus. The second 12-mm trocar was placed at a point midway between the umbilicus and the anterior iliac spine. The third 5-mm trocar was inserted under the left subcostal space⁽³⁾.

The abdominal cavity was examined and the pelvis was also examined in order to confirm the intraperitoneal viability of a transvaginal delivery of the kidney.

Told’s fascia was opened and we continued with mobilization of the left colon to expose the anterior aspect of the left kidney and ureter.

The left ureter was isolated. The Gerota fascia was opened and the upper pole of the kidney was separated from the adrenal gland.

Two left veins and one left artery were also separately isolated, doubled clipped with hem-o-lock clips and divided (Figures 2 and 3).

The left kidney was completely freed and delivered in the Douglas pouch (Figure 4).

The patient was placed in supine lithotomy position. A transverse posterior colpotomy was performed transvaginally at the apex of the fornix.

The peritoneum was opened under laparoscopic view. The specimen was extracted intact transvaginally (Figures 5, 6 and 7). The posterior colpotomy was repaired transvaginally.

Results

The patient received a single dose of first-generation cephalosporin on the operative table.

The operative time was 90 minutes. Blood loss was minimal (less than 100 ml). No intraoperative or postoperative complications occurred.

The patient didn’t require postoperative analgesia. Vaginal pack and Foley catheter were removed on the first postoperative day.

The patient was discharged after three days. Hypertension was controlled after nephrectomy without other antihypertensive drugs. The cosmetic aspect was excellent (Figures 8 and 9) and the sexual life was perfect after one month.

Discussion

Natural orifice translumenal endoscopic surgery (NOTES) has been introduced as a less invasive approach to performing intraabdominal surgery^(1,6). Any natural orifice may be used, although the ideal portal remains to be determined. Transvaginal surgery has been performed by gynecologists for decades and there is abundant literature supporting the efficacy and safety using this approach⁽¹⁾. Surgeons have also used the vagina for specimen removal after laparoscopic surgery to minimize the transabdominal incision.

The advantages of transvaginal approach for extracting the kidney are^(1,4,6):

• better cosmesis;

• expectancy of lower postoperative pain;

• lower rate of incisional hernias.

The advantages of transabdominal approach are⁽¹⁾:

• no risk of impairment of sexual function and fertility;

• no aggression of intimacy;

• faster recovery.

In 2002, Gill reported a series of 10 laparoscopic nephrectomies followed by vaginal extraction⁽³⁾.

In 2011, Alcaraz reported a series of 20 living donor laparoscopic nephrectomies with vaginal delivery⁽⁴⁾.

However, the technique did not have a great spread, remaining confined to some high specialized centers.

The defenders of the conventional abdominal extraction justified their option with the expectation of lower complication rate, and expressed their concerns about sexual function and fertility⁽¹⁾.

These concerns are probably restraints to the widespread acceptance of transvaginal surgery.

Perioperative complications are negligible when the transvaginal access is created under direct vision^(2,3,10) and infections are a rare event^(6,9).

The use of transvaginal route to perform a surgical procedure or to remove a surgical specimen is not new.

The general opinion in the literature is that transvaginal approach is the most applied route to extract abdominal or pelvic organs or specimens by virtue of its clinical safety and easy access for opening and closing viscerotomy^(1-3,6,7).

The ease of exploration, the cleaning closure and the solution to potential problems have made the transvaginal approach the route of excellence.

The surgical specimen extraction can be done directly or protected with plastic bag⁽¹⁾.

Morcellation is also a commonly used minimally invasive method to extract bulky tissue from the abdomen without extended abdominal incisions⁽⁵⁾.

The public perception of the new surgical procedures may not always consider all their potential risks and benefits; however, it is well known the importance of public demand in the evolution of surgical techniques. Population-based surveys found a great acceptance of female public for the transvaginal procedures once safety is assured^(4,6).

We want to implement this technique in the future for female cases.

Conclusions

Transvaginal extraction is an effective and minimally morbid technique for removing the intact kidney after laparoscopic nephrectomy^(1-3,6,7). The lack of experience in vaginal surgery and the apprehension of long-term effects on sexual function and fertility can be obstacles to the widespread of this technique⁽¹⁾. Morcelation is another alternative for specimen retrieval without the need of wound enlargement⁽⁵⁾. Laparoscopic nephrectomy with transvaginal extraction of the kidney is a feasible and cosmetically attractive technique especially for young female patients^(2,3). To our knowledge, this is the first of laparoscopic nephrectomies performed in Romania (the surgery was performed on 27.01.2017) in which the extraction route was transvaginal.   

Consent: The written informed consent was obtained from the patient for the publication of this case report.

Conflict of interests: The authors declare no conflict of interests.