Duarte v. Zachariah

22 Cal. App. 4th 1652, 28 Cal. Rptr. 2d 88, 94 Cal. Daily Op. Serv. 1611, 94 Daily Journal DAR 2840, 1994 Cal. App. LEXIS 184
CourtCalifornia Court of Appeal
DecidedMarch 2, 1994
DocketC015296
StatusPublished
Cited by26 cases

This text of 22 Cal. App. 4th 1652 (Duarte v. Zachariah) is published on Counsel Stack Legal Research, covering California Court of Appeal primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Duarte v. Zachariah, 22 Cal. App. 4th 1652, 28 Cal. Rptr. 2d 88, 94 Cal. Daily Op. Serv. 1611, 94 Daily Journal DAR 2840, 1994 Cal. App. LEXIS 184 (Cal. Ct. App. 1994).

Opinion

Opinion

a grant of nonsuit in favor of the defendant physician, Chaminoor Zachariah, in a medical malpractice action.

The Duartes’ evidence affords the inference that Zachariah’s negligent overprescription of a drug harmed her bone marrow, preventing completion of treatment with chemotherapy which would have lowered the likelihood of the recurrence of Duarte’s breast cancer. The cancer did recur. The nonsuit was granted on the ground the negligence was not a cause in fact of personal injury to the Duartes because the cancer would as likely as not have recurred regardless of chemotherapy. We agree with that reasoning insofar as it bars recovery for recurrence of the cancer.

However, the Duartes advance an alternative contention with which we also agree: that the harmful injury to her bone marrow which impaired its functioning is actionable regardless whether it was a cause in fact of the recurrence of the cancer.

We will reverse the judgment.

Facts and Procedural Background

Under the standard of review for a grant of nonsuit the pertinent facts are as follows. 1 Zachariah is a specialist in the fields of cancer and blood diseases. In June 1991 Duarte was referred to Zachariah to discuss chemotherapy, after a mastectomy to remove a breast cancer. He recommended *1656 chemotherapy to destroy tumor cells that might be left in her body and thereby increase her chances of avoiding a recurrence of cancer. In September 1991 she agreed.

One of the drugs administered in the chemotherapy regime was cytoxin. Cytoxin kills cells, particularly those that are rapidly dividing. It causes severe damage to the nuclear apparatus of cells, both cancerous cells and normal cells. Ina Bounds, Zachariah’s nurse, calculated the cytoxin dosage based upon Duarte’s height and weight. The calculation was erroneous and called for five times the appropriate amount of cytoxin. Zachariah checked the calculation, but failed to catch the error.

Duarte followed the directions given her and took the prescribed amount of cytoxin for several days. She became nauseous, confused, agitated, depressed and suffered headaches. When she returned to Zachariah’s office for her next appointment she told him she had been extremely ill and did not want to continue chemotherapy. He discovered the incorrect dosage of cytoxin and halted the chemotherapy.

Soon thereafter Duarte transferred to Marilyn Swanson, another physician specializing in cancer and blood disorders. Swanson intended to reinstitute the chemotherapy course of treatment, but discovered that Duarte’s platelet count was extremely low. Platelets are the component of blood that cause blood to clot in response to a wound or cut. Swanson deferred reinstituting the chemotherapy because of the abnormal blood value. Swanson was concerned that chemotherapy would adversely affect the bone marrow resulting in life-threatening low platelet counts that could predispose Duarte to spontaneous bleeding and hemorrhaging. After various tests Swanson concluded that the overdose of cytoxin had damaged Duarte’s bone marrow, rendering it less capable of replacing blood platelets. Because of this condition Swanson was unable to reinstitute chemotherapy.

In April 1992, Swanson detected an abnormality on a Duarte chest X-ray. In September 1992, a nodule was removed and determined to be cancerous. In Swanson’s opinion this was a recurrence of the breast cancer which had spread to the lung.

Various opinions on the efficacy of chemotherapy in inhibiting a recurrence of cancer were adduced at trial. Zachariah testified that without *1657 chemotherapy there was a 90 percent chance that Duarte would not suffer a recurrence within five years and that chemotherapy adds maybe a 3 to 4 percent advantage. Swanson testified that Duarte’s chances for avoiding recurrence during this interval would be enhanced from 90 to 95 percent by chemotherapy. Swanson conceded that there was no way to determine whether Duarte was in the 5 percent of patients who would have suffered a recurrence within five years regardless of chemotherapy.

Swanson also testified that without chemotherapy there was an 80 percent chance that the cancer would not recur within a 10-year period and that after chemotherapy the survival rate was “[s]omewhere between 88, 90, 91 percent.” Shortly after making this statement she agreed to the statement that “the 95 percent [chance] of five-year disease-free survival with proper chemotherapy would drop to somewhere between 88 to 90 percent for the ten-year period[.]”

After both sides had rested but before the matter was submitted to the jury the question of nonsuit on the ground of insufficient evidence of causation was extensively debated. Zachariah relied upon Dumas v. Cooney (1991) 235 Cal.App.3d 1593, 1603-1611 [1 Cal.Rptr.2d 584]. His counsel argued that since, at best, there was only a 50 percent probability that chemotherapy would avert the recurrence of cancer in the five-year period, the Duartes had failed to show that the admittedly negligent prescription of cytoxin was a cause of the recurrence of the cancer. The trial court was persuaded by this argument and indicated it would grant the motion for nonsuit. The Duartes suggested that they should nonetheless be permitted to seek a recovery for the “bone marrow damage.” The trial court said: “That’s not the theory that we came in on” and reiterated its determination that nonsuit was appropriate.

Discussion

I

The Duartes contend the evidence affords an inference that the recurrence of the cancer was caused by the lack of chemotherapy and that in any event the bone marrow injury was actionable. Only the second contention has merit.

Zachariah relies upon Dumas v. Cooney, supra, 235 Cal.App.3d 1593. 2 Dumas holds that negligent conduct was not a cause in fact of an injury “where the evidence indicates that there is less than a probability, i.e., *1658 a 50-50 possibility or a mere chance,” that the injury would have ensued. (Id. at pp. 1603-1608; also see, e.g., Bromme v. Pavitt (1992) 5 Cal.App.4th 1487, 1498 [7 Cal.Rptr.2d Given this standard of causation, the Duartes failed to adduce substantial evidence that Zachariah’s negligence was a cause in fact of the recurrence of the cancer.

A.

The Duartes claim that the statistical benefit to Duarte “from chemotherapy would be not a 50% increase in the odds, but over a 90% increase.” They reason as follows. The probabilities of recurrence of cancer apply to the pool of patients who had the existing tumor successfully removed and had no cancer cells present in the lymph nodes. Cancer may spread through the lymph system or the blood system if the original tumor is not completely removed. From the fact of recurrence in Duarte it is reasonable to infer that her cancer spread through the blood system. Thus, she is in the small group of cancer patients for whom the benefit of chemotherapy is targeted.

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22 Cal. App. 4th 1652, 28 Cal. Rptr. 2d 88, 94 Cal. Daily Op. Serv. 1611, 94 Daily Journal DAR 2840, 1994 Cal. App. LEXIS 184, Counsel Stack Legal Research, https://law.counselstack.com/opinion/duarte-v-zachariah-calctapp-1994.