Obstetrics & Gynecology

News and Events

Programs and providers of Obstetrics and Gynecology at Weill Cornell Medicine are often the focus of news stories and features appearing in major national media. We invite you to review some stories that typify the breakthrough accomplishments of our remarkable team and highlight the impact our care has had on patient’s lives.

Dr. Angela Kadenhe-Chiweshe Appointed Chief of the Division of Pediatric Surgery at NewYork-Presbyterian Komansky Children’s Hospital of Children’s Hospital of New York and Weill Cornell Medicine

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New York (Aug. 10, 2026)—Dr. Angela Kadenhe-Chiweshe, an accomplished pediatric surgeon and leader in complex pediatric surgery, has been appointed chief of the Division of Pediatric Surgery at NewYork-Presbyterian Komansky Children’s Hospital of Children’s Hospital of New York and Weill Cornell Medicine, effective July 1.

Dr. Kadenhe-Chiweshe will lead pediatric surgical services at NewYork-Presbyterian Komansky Children’s Hospital of Children’s Hospital of New York and Children’s Hospital of New York locations in Brooklyn, Lower Manhattan and Queens, overseeing clinical programs spanning pediatric general, thoracic, and trauma surgery, as well as complex multidisciplinary program in hepatobiliary, oncology, neonatal surgery, and highly specialized services such as the use of a heart-lung machine, extracorporeal membrane oxygenation (ECMO), for those children and families facing severe health complications. In her new role, she will expand foundational pediatric surgical programs, further develop advanced subspecialty and complex surgical services, and enhance collaboration across specialties.

Dr. Kadenhe-Chiweshe succeeds Dr. Nitsana Spigland, who will step down after decades of distinguished leadership, and continue as a member of Weill Cornell Medicine’s faculty.

Molecular Structures Provide Roadmap for Targeted Parkinson’s Disease Therapeutics

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Video of LRRK2 Protein Animation | Weill Cornell Medicine
Researchers at Weill Cornell Medicine have uncovered how a key Parkinson's protein called LRRK2 shifts between inactive and active forms, revealing the structural changes that enable certain mutations to push the protein into an overactive state.  Mutations that cause LRRK2 to become abnormally active are among the most common genetic causes of Parkinson’s disease. Even without these mutations, some people with Parkinson’s disease have elevated LRRK2 activity.

Understanding exactly how LRRK2 becomes overactive has become increasingly important because it is one of the leading targets for developing treatments that could slow Parkinson's disease.

Using electron microscopy and biochemistry, the team captured the structure of LRRK2 in different states, enabling them to elucidate how the protein toggles between the active and inactive forms. The findings, published Aug. 10 in Cell, point toward a new generation of targeted therapies.

Commentary: AI Could Help to Implement Health Policy

A doctor typing on a laptop, with an overlaying AI illustration

Complex healthcare policies are often challenging to implement. That’s a reality states across the country will deal with as new Medicaid work requirements get rolled out next year.

The new federal rule, part of the Budget Reconciliation Act of 2025 (HR 1), requires adults enrolled under the Affordable Care Act (ACA) expansion of Medicaid eligibility to complete at least 80 hours per month of qualifying work or community engagement activities or meet exemption criteria to maintain their coverage starting Jan. 1.

A new Special Communication published Aug. 7 in JAMA Health Forum suggests that artificial intelligence may enhance implementation of this policy by helping state Medicaid agencies keep eligible individuals enrolled in Medicaid. Going forward, the use of AI can help states and local governments roll out and improve other healthcare policies, too.

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