Tag: laparoscopy

Categories : Surgeries & ProceduresTags :

New Surgical Method for Groin Hernia in Women Without Laparoscopy

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In a study conducted in Uganda and published in JAMA Surgery, researchers from Karolinska Institutet evaluated a new surgical method for treating groin hernias in women. The method could become an alternative in resource-limited settings where laparoscopic techniques are not generally available.

Groin hernia repair is the most common general surgical procedure in the world. Groin hernias are more common in men, but women are more likely to experience complications due to this condition.

Many women in low- and middle-income countries who need surgery for groin hernias lack access to laparoscopy (keyhole surgery). To evaluate a new method using open surgery, the researchers conducted a randomised clinical trial at two publicly funded hospitals in Uganda. The study included 200 women who underwent groin hernia surgery and were followed up after two weeks and after one year.

There are two main types of groin hernias, called inguinal and femoral hernias. The evaluation showed that the new surgical method was effective for both femoral and inguinal groin hernias.

Its effectiveness for both types is particularly important as the study also showed that nearly 45% of the women had femoral hernias, which carry a higher risk of complications.

“The fact that so many of the women had femoral hernias was unexpected and highlights the need to develop effective, safe and accessible methods,” says Alphonsus Matovu, PhD at the Department of Molecular Medicine and Surgery, Karolinska Institutet and first author of the article.

Millions of women affected

The results are promising as the new method could be developed into a viable alternative where access to advanced laparoscopic surgery is limited.

“Women with groin hernias can suffer serious and even fatal complications and therefore need access to effective surgical methods,” says Jenny Löfgren, docent at the same department and last author of the article. “The new method could become a valuable tool to improve care for millions of women”.

The method needs further evaluation, and the researchers will also follow up with the study participants five years after surgery to ensure long-term results. To improve treatment, the new method will also be compared with other surgical methods, both open and laparoscopic.

Source: Karolinska Institutet

Categories : Medical Research & TechnologyTags :

Robot Performs Surgery Without Human Assistance

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Photo by Tara Winstead from Pexels

In a significant step toward fully automated surgery on humans, a robot has performed laparoscopic surgery on the soft tissue of a pig without human guidance. 

Designed by a team of Johns Hopkins University researchers, the Smart Tissue Autonomous Robot (STAR) is described in Science Robotics.

“Our findings show that we can automate one of the most intricate and delicate tasks in surgery: the reconnection of two ends of an intestine. The STAR performed the procedure in four animals and it produced significantly better results than humans performing the same procedure,” said senior author Axel Krieger, PhD, an assistant professor at John Hopkins University.

The robot excelled at intestinal anastomosis, which connects the two ends of an intestine. It is a procedure that requires a high level of repetitive motion and precision and is arguably the most challenging step in gastrointestinal surgery, requiring a surgeon to accurately and consistently suture. A slight hand tremor or misplaced stitch can result in a leak with potentially catastrophic complications for the patient.

The team developed a vision-guided system designed specifically to suture soft tissue. Their current iteration advances a 2016 model that repaired a pig’s intestines accurately, but required a large incision to access the intestine and more guidance from humans.

The team equipped the STAR with new features for enhanced autonomy and improved surgical precision, including specialised suturing tools and state-of-the art imaging systems that provide more accurate visualisations of the surgical field.

Soft-tissue surgery is especially hard for robots because of its unpredictability, forcing them to be able to adapt quickly to handle unexpected obstacles, Dr Krieger said. STAR features a novel control system that can adjust the surgical plan in real time, just as a human surgeon would.

As the medical field moves towards more laparoscopic approaches for surgeries, it will be important to have an automated robotic system designed for such procedures to assist, Dr Krieger said.

“Robotic anastomosis is one way to ensure that surgical tasks that require high precision and repeatability can be performed with more accuracy and precision in every patient independent of surgeon skill,” Dr Krieger said.

“We hypothesise that this will result in a democratised surgical approach to patient care with more predictable and consistent patient outcomes.”

Source: John Hopkins University