Can Mentorship Revive Classical Hematology?

For some medical students and trainees who go on to become hematologists, attraction to the field happens the first time they’re engrossed in figuring out what a blood smear is telling them. Others get drawn to hematology during a rotation in residency, when they encounter patients with hemophilia or sickle cell disease.

But when it comes to turning people on to the idea of a career in classical hematology (CH), there may be no more powerful influence than a mentor who loves their job. That’s why the field is focusing so much on supporting mentors and mentees amid a stark shortage of classical hematologists.

“Mentorship is key for maintaining trainee interest in the field and for providing role models for career growth,” said Rakhi P. Naik, MD, MHS, associate professor of medicine and director of the Hematology Fellowship Track at Johns Hopkins University in Baltimore, in an interview. “This collaboration is especially critical because there are so few trainees and so few mentors currently in the field.”

Now there’s new research backing up the power of mentorship, even when it’s only provided virtually, and a brand-new program aims to unite more mentors and mentees.

Here’s a closer look at mentor-focused efforts to attract medical students to CH.

How Severe Is the Shortage in CH?

Patients with conditions treated by classical hematologists are waiting months for appointments at many outpatient centers, with some being forced to wait 6 months or more, said Srikanth Nagalla, MD, chief of benign hematology at Miami Cancer Institute, Florida, in an interview.

The shortage is creating dire problems in the inpatient setting too, Nagalla said. “Serious blood disorders like heparin-induced thrombocytopenia, acute chest syndrome [a complication of sickle cell disease], and thrombotic thrombocytopenic purpura have to be diagnosed and treated in a timely manner. If not, the morbidity and mortality are really high.”

If classical hematologists aren’t available, he said, oncologists and others not trained in hematology will need to cover these patients. 

Hematologist Ariela Marshall, MD, associate professor of medicine at the University of Minnesota in Minneapolis, noted in an interview that the CH shortage comes at a time when medical advances and an aging population are boosting the number of patients with noncancerous blood disorders. Older people are at greater risk for blood clots, she said. And lifespans for patients with bleeding and clotting disorders are rising thanks to effective new treatments.

“Because of our larger patient population in CH, we are going to need more classical hematologists to follow them for longer and longer periods of time,” she said. 

There’s no sign yet that newly minted physicians will take up the slack in CH. A 2019 study found that just 4.6% of 626 of hematology/oncology fellows said they planned to go into CH, also known as benign hematology, vs 67.1% who expected to treat patients with solid tumors, blood cancer, or both. The rest, 24.6%, planned to work in CH plus the two oncology fields.

Why Does a Shortage Exist?

“The reasons are complex, but one of the most important factors was the combining of the adult hematology and medical oncology training programs by the Accreditation Council for Graduate Medical Education in 1995,” Naik said. “After that time, the majority of fellowship training programs went from having separate programs for hematology and medical oncology to combining the training for the two specialties into one. Because most of these combined training programs resided within Cancer Centers, classical hematology training slowly became de-emphasized.”

As a result, fewer fellows ended up specializing in CH, she said. 

The field of CH also appears to suffer from a less than enticing reputation. According to a 2019 study co-authored by Marshall, surveys of thousands of hematology/oncology fellows found that “hematology, particularly benign hematology, was viewed as having poorer income potential, research funding, job availability, and job security than oncology.”

Regarding pay, Marshall said the good news is that many classical hematologists work in academia, where it’s common for pay to be “equitable across hematology/oncology divisions and based more on academic rank and other factors rather than subspecialty within hematology oncology.”

However, she noted, “this may differ at institutions where hematology and oncology are different departments. For example, centers where oncology is its own department, and hematology is part of the department of medicine.” 

As for job availability, Johns Hopkins University’s Naik said that there’s plenty of demand. “In academics, it is clear that there are jobs available everywhere, but trainees are often worried about job prospects in private practice. While classical hematology jobs in private practice are not widely advertised, I can attest that there is no shortage of need,” she said. “Many private practices do not specifically advertise for classical hematologists because they assume that classical hematology experts are not available. But I assure you that every private practice my trainees have ever approached is always ecstatic to hire a classical hematologist.”

Why Are Mentors Important?

Mentorship is crucial to promoting the value of CH as a great career choice in a competitive environment, classical hematologists say. “We can motivate trainees by showing how the disease states themselves are so fascinating and how the treatments are showing great outcomes,” Miami Cancer Center’s Nagalla said. “We can show positive results, how patient lives can be changed, and how well-respected across the system [we] are.”

As a selling point, classical hematologists like to emphasize that their field requires intensive detective work. “Let’s say a patient comes with anemia, which might have 15 different causes. You get some labs, and then you systemically rule in or rule out most of these on the differential diagnosis,” Nagalla said. “Then once you narrow it down, you get more labs. You keep going to the next step and next step, and so finally you come to a conclusion.”

As for therapy, the University of Minnesota’s Marshall said that “while for many cancers there are specific treatment recommendations for patients with a specific cancer type at a specific stage, there is not always a specific treatment recommendation (or a ‘right answer’) for our CH patients. Treatment planning depends strongly on a patient’s preferences, other medical conditions, and a discussion about risks [and] benefits of different treatment options such that two patients with the same condition may choose two different treatment options.”

Marshall also emphasizes to trainees that “CH is a broad field. Physicians and trainees are able to interact and collaborate with physicians in other specialties such as gastroenterology, cardiology, ob/gyn, and surgical specialties.” 

Does Research Support Mentorship in CH?

The 2019 study that revealed just 4.6% of fellows planned to go into CH found that “fellows who planned to enter hematology-only careers were significantly more likely to report having clinical training and mentorship experiences in hematology throughout their training relative to fellows with oncology-only or combined hematology/oncology career plans.”

Now there are more data to support mentorships. For a study published in Blood Advances in September 2024, Zoya Qureshy, MD, an internal medicine chief resident at the University of California at San Diego, and colleagues evaluated a year-long external membership program implemented by the American Society of Hematology (ASH) Medical Educators Institute. 

The program linked 35 US hematology/oncology fellows (80% female, 46% White, 35% Asian) who were interested in CH to 34 North American faculty members. The pairs were told to meet virtually once a month. 

Of 30 mentees and 23 mentors surveyed, 94% and 85%, respectively, said their pairings were good matches. Two thirds of the mentees accepted faculty positions in CH after their mentorships.

“Our study showed that external mentorship in a virtual format is feasible,” Qureshy said in an interview. “Additionally, external mentorship provided benefits such as different perspectives and the opportunity for mentorship for those who may not have it in their field of interest at their home institution.”

Qureshy added that “one strength of our mentorship program was that mentoring pairs were meticulously assigned based on shared interests and background. Many participants cited this common ground as a reason why they thought their mentoring pair was a good match.” 

There’s an important caveat: Most of the mentees weren’t new to CH. Seventy percent had previously worked with a mentor in the CH field, and 86% had previously conducted research in the field. 

What’s Next for Mentorship in CH?

The ASH Hematology-Focused Fellowship Training Program Consortium aims to mint 50 new academic hematologists by 2030 through programs at 12 institutions. “Mentorship is an exciting aspect of the program since it allows classical hematology trainees to form a network of peers nationally and also provides access to mentors across institutions,” Naik said. “And as the workforce grows, there will be more and more role models for future trainees to look up to.”

Moving forward, she said, “we hope to inspire even more institutions to adopt hematology training tracks throughout the country.”

Meanwhile, ASH’s new Classical Hematology Advancement Mentorship is taking applications for its debut 2025 program through January 9, 2025. Trainees will meet monthly with mentors both virtually and in person. Applicants must have been in their first or second year of hematology/oncology fellowship training at accredited programs in the US as of July 15, 2024.

Naik, Marshall, Nagalla, and Qureshy have no relevant disclosures. 

Randy Dotinga is an independent writer and board member of the Association of Health Care Journalists.