Combined resections with colorectal surgeries and their combined natural orifice specimen extractions (NOSE): a clinical practice review
Review Article

Combined resections with colorectal surgeries and their combined natural orifice specimen extractions (NOSE): a clinical practice review

Mehmet Can Aydin1^, Kutay Saglam2^

1Department of Gastrointestinal Surgery, Ondokuz Mayıs University, Faculty of Medicine, Samsun, Turkey; 2Department of Gastrointestinal Surgery, Inonu University, Faculty of Medicine, Malatya, Turkey

Contributions: (I) Conception and design: Both authors; (II) Administrative support: Both authors; (III) Provision of study materials or patients: None; (IV) Collection and assembly of data: None; (V) Data analysis and interpretation: None; (VI) Manuscript writing: Both authors; (VII) Final approval of manuscript: Both authors.

^ORCID: Mehmet Can Aydin, 0000-0002-2379-1293; Kutay Saglam, 0000-0002-0919-8370.

Correspondence to: Mehmet Can Aydin, MD. Department of Gastrointestinal Surgery, Ondokuz Mayıs University, Faculty of Medicine, Samsun, Turkey. Email: dr.mca@hotmail.com.

Abstract: Compared to conventional ones, minimally invasive surgical techniques have come to the fore in many fields, especially in colorectal surgery (CRS), due to their benefits. These benefits are better postoperative outcomes, particularly due to less abdominal trauma and smaller incisions. However, postoperative pain, incisional hernia or infection, and poor cosmesis, due to abdominal incisions made for specimen extraction, reduce the positive results that can be achieved. The basic starting point of natural orifice specimen extraction (NOSE) surgery is to eliminate these incisions and their negative effects. NOSE has been performed more frequently, especially in CRS, with the increase in experience. In some of the patients, in addition to CRS, combined resections may be required for metastases, secondary primary malignancies, or benign diseases. However, in the literature, NOSE in combined resections with CRS is limited to case reports and it is controversial. We aimed to review the literature in terms of NOSE for combined resections with CRS, including preoperative details, technical feasibility, perioperative findings and postoperative results. When a total of 42 cases in the literature were examined; it was observed that organs such as liver, stomach, pancreas, gallbladder, endometrium and ovaries were removed synchronously in CRS combined with NOSE. No major complication due to NOSE was observed perioperatively. According to these available data, NOSE in combined organ resections with CRS may be a safe and effective alternative surgical technique. It is obvious that there is a need for studies on this subject in order to obtain more reliable results.

Keywords: Natural orifice specimen extraction (NOSE); colorectal surgery (CRS); multivisceral; synchronous; simultaneous


Received: 29 May 2022; Accepted: 12 October 2022; Published online: 06 December 2022.

doi: 10.21037/ales-22-23


Introduction

Recently, minimally invasive surgery (MIS) become almost the gold standard surgical approach in many centers due to its benefits compared to open surgery (1). Especially in colorectal surgery (CRS), it is stated that minimally invasive approach is associated with less postoperative pain, earlier bowel function recovery and shorter hospital stay (2). However, the approach requires an abdominal incision approximately 3–8 cm long for specimen extraction. Natural orifice specimen extraction (NOSE) is the technique in which the intra-abdominally resected specimen is extracted by opening a hollow organ that communicates with the outside of the body, including anus, vagina, mouth or ureter, and it aims to reduce postoperative pain, incisional hernia, wound infection and cosmetic concerns, due to abdominal incision (3,4). The indications of NOSE are similar to conventional minimally invasive colorectal resections (3). Although this technique reaches a high number of cases especially for CRS; recently, it has started to be used as a minimally invasive alternative for other organ resections, such as stomach, liver, and adrenal gland (4-6).

Since 1991, when it was first performed (7,8), CRS combined with NOSE has been successfully performed with increasing numbers in many centers (3). The studies have shown that while general complication rates are similar, NOSE is superior to transabdominal specimen extraction, especially in terms of postoperative pain, length of hospital stay and cosmesis, and this result have been very effective in these increasing numbers (9). In addition to the benefits of the technique, rare complications such as perioperative organ injury, anastomotic leakage, fecal incontinence, intra-abdominal contamination, dyspareunia and recurrence in the specimen extraction area can be seen (10). In order to minimize these complications, recommendations such as preoperative rectal and vaginal cleaning, selection of a natural orifice compatible with the specimen diameter, or extraction of the specimen in a protective sheath, were presented in the ‘CRS combined with NOSE consensus report’ in 2019 (3).

In some of the cases, in addition to CRS, combined resections may be required for metastases, secondary primary malignancies, or benign diseases, and it is controversial. PubMed and Google Scholar database were scanned in April 2022 and 812 potential articles were selected for research. After exclusions (non-English articles, Natural Orifice Transluminal Endoscopic Surgery (NOTES), and only colorectal resections with NOSE articles) and reference cross check, we collected 19 eligible studies including 42 case reports who included the study. These data were summarized in Table 1. In the present study, we aimed to review the literature of NOSE for combined resections with CRSs, from the perspective of choice of the natural orifice, technical feasibility, and postoperative results.

Table 1

Clinicodemographics, perioperative findings and postoperative results of the cases

Patients Author Year Country/region Gender Age (years) Operation Specimen extraction Colorectal pathology malignant/benign Indication of combined resection malignant/benign Protection sheath Combined organ Duration of surgery (min) Blood loss (mL) Complication Length of hospital stay (d)
P1 Breitenstein et al. (11) 2006 Switzerland F 59 Sigmoidectomy/hysterectomy Transvaginal Benign Benign 0 Uterus NA NA Colitis 15
P2 Breitenstein et al. (11) 2006 Switzerland F 39 Sigmoidectomy/hysterectomy Transvaginal Benign Benign 0 Uterus NA NA 0 9
P3 Lakshman et al. (12) 2006 Australia F 42 Anterior resection/hysterectomy/bilateral salphingo-ooferectomy Transvaginal Benign Benign 1 Uterus/ovary/salpings 240 200 0 3
P4 Lakshman et al. (12) 2006 Australia F 46 Anterior resection/hysterectomy/bilateral salphingo-ooferectomy Transvaginal Malignant Benign 1 Uterus/ovary/salpings 270 200 0 4
P5 Lakshman et al. (12) 2006 Australia F 55 Anterior resection/hysterectomy/bilateral salphingo-ooferectomy Transvaginal Malignant Malignant 1 Uterus/ovary/salpings 180 100 0 NA
P6 Dozois et al. (13) 2008 USA F 53 Total colectomy/hysterectomy Transvaginal Malignant Benign 0 Uterus 455 400 0 7
P7 Pickron et al. (14) 2009 USA F 40 Ileocecal resection/hysterectomy/bilateral salphingo-ooferectomy Transvaginal Benign Benign 0 Uterus/ovary/salpings NA NA NA NA
P8 García Flórez et al. (15) 2010 Spain F 86 Anterior resection/right salphingo-ooferectomy Transvaginal Malignant Malignant 1 Right salping/ovary 225 180 0 6
P9 Tan et al. (16) 2017 Singapore F 74 Low anterior resection/hysterectomy/bilateral salphingo-ooferectomy Transvaginal Malignant Benign NA Uterus/ovary/salpings 469 NA 0 5
P10 Karagul et al. (17) 2017 Turkey NA NA NA NA NA Benign NA Gallbladder NA NA NA NA
P11 Sumer et al. (18) 2018 Turkey M 66 Subtotal colectomy/gastrectomy Transanal Malignant Malignant 0 Stomach 520 250 0 17
P12 Wang et al. (19) 2020 China M 68 Anterior resection/gastrectomy Transanal Malignant Malignant 1 Stomach 355 50 0 NA
P13 Gundogan et al. (9) 2021 Turkey NA NA Right hemicolectomy/cholesystectomy Transanal Malignant Benign NA Gallbladder NA NA NA NA
P14 Gundogan et al. (9) 2021 Turkey NA NA Right hemicolectomy/liver metastatectomy Transanal Malignant Malignant NA Liver NA NA NA NA
P15 Cheng et al. (20) 2020 Taiwan NA NA Right hemicolectomy/NA Transanal NA NA NA NA NA NA NA NA
P16 Cheng et al. (20) 2020 Taiwan NA NA Right hemicolectomy/NA Transanal NA NA NA NA NA NA NA NA
P17 Efetov et al. (21) 2021 Russia F NA Anterior resection/right salphingo-ooferectomy Transanal Malignant Benign NA Right salping/ovary NA NA NA NA
P18 Wang et al. (22) 2021 China M 65 Anterior resection/gastrectomy Transanal Malignant Malignant NA Stomach NA NA NA NA
P19 Meng et al. (23) 2021 China F 37 Right hemicolectomy/pancreaticoduodenectomy Transvaginal Malignant Malignant 1 Pancreas-duodenum 470 130 0 7
P20 Lendzion and Gilmore (24) 2021 Australia F 74 Right hemicolectomy/hysterectomy Transvaginal Malignant Benign 1 Uterus 240 NA 0 5
P21 Lendzion and Gilmore (24) 2021 Australia F 45 Right hemicolectomy/hysterectomy Transvaginal Malignant NA 1 Uterus 270 NA 0 3
P22 Lendzion and Gilmore (24) 2021 Australia F 75 Anterior resection/right hemicolectomy/bilateral salphingo-ooferectomy Transvaginal Malignant Malignant 1 Peritoneum/omentum/bilateral ovaries/salpings 510 NA 0 4
P23–34 Chen et al. (25) 2021 Australia NA NA Colorectal resections/cholecystectomy/appendectomy/hysterectomy/salphingo-oofrectomy Transanal/Transvaginal Benign NA 1 4 gallbladders; 2 appendix; 5 ovaries/salphings; 1 uterus NA NA NA NA
P35 Aydin et al. (5) 2022 Turkey F 70 Anterior resection/liver metastasectomy Transvaginal Malignant Malignant 1 Liver 540 0 0 5
P36 Aydin et al. (5) 2022 Turkey F 45 Anterior resection/liver metastasectomy Transanal Malignant Malignant 1 Liver 420 0 Pleural effusion 8
P37 Aydin et al. (5) 2022 Turkey M 58 Anterior resection/liver metastasectomy Transanal Malignant Malignant 1 Liver 390 50 Anastomosis leak 39
P38 Aydin et al. (5) 2022 Turkey F 73 Anterior resection/liver metastasectomy Transvaginal Malignant Malignant 1 Liver 390 60 0 8
P39 Aydin et al. (5) 2022 Turkey F 44 Anterior resection/liver metastasectomy Transanal Malignant Malignant 1 Liver 300 0 0 9
P40 Gonçalves et al. (26) 2022 Portugal F 45 Sigmoidectomy/hysterectomy Transanal Benign Benign 0 Uterus NA NA 0 NA
P41 Drestadt et al. (27) 2020 Germany NA NA Anterior resection/cholecystectomy Transvaginal Benign Benign 0 Gallbladder NA NA NA NA
P42 Drestadt et al. (27) 2020 Germany NA NA Anterior resection/liver resection Transvaginal Benign NA 0 Liver NA NA NA NA

F, female; NA, not available; M, male.


Colorectal carcinoma liver metastasis

Colorectal cancer is frequently seen in the world and it is also the leading cause of cancer-related deaths. The liver is the most common organ of colorectal cancer metastasis with a rate of 15–25%, and if possible, the only potentially curative treatment is surgical resection. Synchronous resections can be performed with comparable short and long term results as an alternative to ‘‘liver first approach’’ and ‘‘tumor first approach’’ (28). Currently, MIS is used effectively and safely for both colorectal and liver resections. MIS, which is the gold standard for CRS, has become a promising alternative for liver resections with the increasing number of cases. As a result, it has become inevitable to perform combined resections in colorectal carcinoma liver metastases that require technical challenges. Synchronous resections of colorectal cancer and liver metastases combined with NOSE are few in the literature and are limited to case reports (5,9,17,29). When all of these cases were examined, we saw that it is possible to use NOSE in relation to tumor diameter in combined resections that include minor hepatectomies (up to 2 segments of the liver) or metastasectomies. Due to the larger specimen diameters in major hepatectomies, it is unlikely to perform NOSE. In the colorectal cancer NOSE consensus, it is stated that the transanal route is the ideal orifice for extraction and the transvaginal route is the second alternative especially for more bulky specimens due to its elasticity (3). Additionally, the transvaginal route has a considerable limitation it can be performed only for females. It has been suggested that the orifice selection should be based on the maximum circumferential diameter of the specimen in the consensus report (the transanal route for tumor <3 cm and the transvaginal route for tumor 3–5 cm). In conclusion, we think that using similar specimen extraction route principles for combined resections in colorectal cancer liver metastasis, if both of the specimens’ circumferential diameters are suitable, would be better in terms of technical feasibility and postoperative results.


Secondary primary gastrointestinal malignancies or locally advanced colorectal tumors

Multiple primary carcinomas are defined as more than one cancer in the same individual, these may be either synchronous or metachronous (22). The localization of these tumors can be in organs such as colon, rectum, small intestine, stomach, and pancreas. Sometimes a synchronous tumor may also be present in different parts of the colon (24). Although secondary primary gastrointestinal cancers are extremely rare, the potentially curative treatment is surgical resection. Conventional surgery of synchronous gastrointestinal tumors requires large incisions and so, the first choice is to perform both organ resections with a minimally invasive approach. Today, the MIS comes to the fore in all kinds of gastrointestinal resections. There are also case reports showing that NOSE can be used for multivisceral resections in locally advanced colorectal tumors that have invaded other organs, although it is not recommended in the NOSE consensus for colorectal cancers (23). It is clear that combining MIS with NOSE will further improve postoperative outcomes. When the literature is reviewed, MIS combined with NOSE for synchronous gastrointestinal tumors is limited to a few case reports (18,19,22-24). The majority of cases had secondary primary gastric cancers. When these cases were examined, we saw that NOSE can be used effectively and safely in synchronous tumor resections or multivisceral resections of locally advanced tumors. It is noteworthy that large samples such as combined gastrectomy can also be obtained using the transanal route. In addition, there is a study showing the feasibility of NOSE in combined resections for additional organ diseases in the surgical treatment of benign colorectal diseases (25). In conclusion, the absence of any major complications in the early or late postoperative period is highly positive and promising that this type of multivisceral resections and NOSE can be combined in experienced hands.


Gynecological resections

The minimally invasive approach in gynecological surgery has recently come to the fore. The vagina, as an access to the abdominal cavity, has been used by gynecologists for a very long time. Especially after hysterectomy, the open vaginal cuff, which is large enough, has encouraged surgeons to perform the main specimen extraction transvaginally over time. So as a result, NOSE has almost become the standard approach in minimally invasive gynecological surgery. With the exception of patient disapproval, virginity, or pelvic anomalies, transvaginal specimen extraction has become almost routine (9). The transvaginal route is more suitable for the extraction of larger specimens, due to its elasticity, than the transanal route. Although rectovaginal fistula, pelvic abscess, and bladder dysfunction are major complications associated with transvaginal route usage, these are quite rare (30). In the literature, gynecological resections combined with CRSs are limited to case reports (11-16,21,26). The most common gynecological indications for combined CRSs are benign or malignant gynecological tumors (ovaries, endometrium and cervix) and endometriosis. Especially colorectal implants of endometriosis are one of the most important reasons for the need for combined resections. Perhaps the point that should be emphasized here is; since resection of other system organs will be required in these operations, multidisciplinary teamwork (gynecologist and gastrointestinal surgeon) may be required. In conclusion, when the cases in the literature were examined, transvaginal specimen extraction has become the standard approach for gynecologists interested in MIS, and this method has been used effectively and safely, when additional CRSs are required.


Others

There are case reports of other organ resections combined with CRSs in the literature, such as cholecystectomy, appendectomy, lymphadenectomy (9,17,20,25,27). When the perioperative findings and postoperative results were examined, it was seen that the resected specimens of these organs were mostly benign, and NOSE was quite practical and effective for such cases.


Conclusions

NOSE in CRSs is a new and effective approach in current surgery. In cases requiring additional organ resection combined with colorectal diseases, NOSE is technically feasible in selected patients by experienced surgeons. To minimize the complications, we think consensus recommendations should be followed as similar to single organ resections. It is certain that new studies on this subject are needed in order to obtain clearer results.


Acknowledgments

Funding: None.


Footnote

Provenance and Peer Review: This article was commissioned by the Guest Editor (Cuneyt Kayaalp) for the series “Natural Orifice Specimen Extraction in Colorectal Surgery” published in Annals of Laparoscopic and Endoscopic Surgery. The article has undergone external peer review.

Peer Review File: Available at https://ales.amegroups.com/article/view/10.21037/ales-22-23/prf

Conflicts of Interest: Both authors have completed the ICMJE uniform disclosure form (available at https://ales.amegroups.com/article/view/10.21037/ales-22-23/coif). The series “Natural Orifice Specimen Extraction in Colorectal Surgery” was commissioned by the editorial office without any funding or sponsorship. The authors have no other conflicts of interest to declare.

Ethical Statement: The authors are accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0/.


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doi: 10.21037/ales-22-23
Cite this article as: Aydin MC, Saglam K. Combined resections with colorectal surgeries and their combined natural orifice specimen extractions (NOSE): a clinical practice review. Ann Laparosc Endosc Surg 2023;8:5.

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